texlive[48593] Build/source/texk/web2c/luatexdir/luapplib: pplib for
commits+lscarso at tug.org
commits+lscarso at tug.org
Wed Sep 5 23:35:27 CEST 2018
Revision: 48593
http://tug.org/svn/texlive?view=revision&revision=48593
Author: lscarso
Date: 2018-09-05 23:35:27 +0200 (Wed, 05 Sep 2018)
Log Message:
-----------
pplib for luatex: removed udeless files
Removed Paths:
-------------
trunk/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h-OK
trunk/Build/source/texk/web2c/luatexdir/luapplib/ppload.c-OK
trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c-OK
trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c-OK
trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c-OK
Deleted: trunk/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h-OK
===================================================================
--- trunk/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h-OK 2018-09-05 21:32:42 UTC (rev 48592)
+++ trunk/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h-OK 2018-09-05 21:35:27 UTC (rev 48593)
@@ -1,360 +0,0 @@
-
-#ifndef PP_API_H
-#define PP_API_H
-
-#include <stdint.h>
-#include <stddef.h>
-#include <string.h>
-
-#include "ppconf.h"
-
-#define pplib_version "v0.97"
-#define pplib_author "p.jackowski at gust.org.pl"
-
-/* types */
-
-typedef int64_t ppint;
-typedef size_t ppuint; // machine word
-
-typedef double ppnum;
-typedef char * ppname;
-typedef char * ppstring;
-
-typedef struct {
- size_t size;
- int flags;
-} _ppname;
-
-typedef struct {
- size_t size;
- int flags;
-} _ppstring;
-
-typedef struct ppobj ppobj;
-typedef struct ppref ppref;
-
-typedef struct {
- ppobj *data;
- size_t size;
-} pparray;
-
-typedef struct {
- ppobj *data;
- ppname *keys;
- size_t size;
-} ppdict;
-
-typedef struct {
- ppdict *dict;
- void *input, *I;
- size_t offset;
- size_t length;
- ppstring cryptkey;
- int flags;
-} ppstream;
-
-#define PPSTREAM_COMPRESSED (1<<0)
-#define PPSTREAM_ENCRYPTED_AES (1<<1)
-#define PPSTREAM_ENCRYPTED_RC4 (1<<2)
-#define PPSTREAM_ENCRYPTED (PPSTREAM_ENCRYPTED_AES|PPSTREAM_ENCRYPTED_RC4)
-#define PPSTREAM_ENCRYPTED_OWN (1<<3)
-
-#define ppstream_compressed(stream) ((stream)->flags & PPSTREAM_COMPRESSED)
-#define ppstream_encrypted(stream) ((stream)->flags & PPSTREAM_ENCRYPTED)
-
-typedef enum {
- PPNONE = 0,
- PPNULL,
- PPBOOL,
- PPINT,
- PPNUM,
- PPNAME,
- PPSTRING,
- PPARRAY,
- PPDICT,
- PPSTREAM,
- PPREF
-} ppobjtp;
-
-PPDEF extern const char * ppobj_kind[];
-
-struct ppobj {
- ppobjtp type;
- union {
- ppint integer;
- ppnum number;
- ppname name;
- ppstring string;
- pparray *array;
- ppdict *dict;
- ppstream *stream;
- ppref *ref;
- void *any;
- };
-};
-
-typedef struct ppxref ppxref;
-
-struct ppref {
- ppobj object;
- ppuint number, version;
- size_t offset;
- size_t length;
- ppxref *xref;
-};
-
-typedef struct ppdoc ppdoc;
-
-/* object */
-
-#define ppobj_get_null(o) ((o)->type == PPNULL ? 1 : 0)
-#define ppobj_get_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : 0)
-#define ppobj_get_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : 0)
-#define ppobj_get_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : 0)
-#define ppobj_get_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : 0)))
-#define ppobj_get_name(o) ((o)->type == PPNAME ? (o)->name : NULL)
-#define ppobj_get_string(o) ((o)->type == PPSTRING ? (o)->string : NULL)
-#define ppobj_get_array(o) ((o)->type == PPARRAY ? (o)->array : NULL)
-#define ppobj_get_dict(o) ((o)->type == PPDICT ? (o)->dict : NULL)
-#define ppobj_get_stream(o) ((o)->type == PPSTREAM ? (o)->stream : NULL)
-#define ppobj_get_ref(o) ((o)->type == PPREF ? (o)->ref : NULL)
-
-#define ppobj_rget_obj(o) ((o)->type == PPREF ? ppref_obj((o)->ref) : o)
-#define ppobj_rget_null(o) ((o)->type == PPNULL ? 1 : ((o)->type == PPREF ? ppobj_get_null(ppref_obj((o)->ref)) : 0))
-#define ppobj_rget_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : ((o)->type == PPREF ? ppobj_get_bool(ppref_obj((o)->ref), v) : 0))
-#define ppobj_rget_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : ((o)->type == PPREF ? ppobj_get_int(ppref_obj((o)->ref), v) : 0))
-#define ppobj_rget_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_uint(ppref_obj((o)->ref), v) : 0))
-#define ppobj_rget_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_num(ppref_obj((o)->ref), v) : 0))))
-#define ppobj_rget_name(o) ((o)->type == PPNAME ? (o)->name : ((o)->type == PPREF ? ppobj_get_name(ppref_obj((o)->ref)) : NULL))
-#define ppobj_rget_string(o) ((o)->type == PPSTRING ? (o)->string : ((o)->type == PPREF ? ppobj_get_string(ppref_obj((o)->ref)) : NULL))
-#define ppobj_rget_array(o) ((o)->type == PPARRAY ? (o)->array : ((o)->type == PPREF ? ppobj_get_array(ppref_obj((o)->ref)) : NULL))
-#define ppobj_rget_dict(o) ((o)->type == PPDICT ? (o)->dict : ((o)->type == PPREF ? ppobj_get_dict(ppref_obj((o)->ref)) : NULL))
-#define ppobj_rget_stream(o) ((o)->type == PPSTREAM ? (o)->stream : ((o)->type == PPREF ? ppobj_get_stream(ppref_obj((o)->ref)) : NULL))
-#define ppobj_rget_ref(o) ((o)->type == PPREF ? (o)->ref : ((o)->type == PPREF ? ppobj_get_ref(ppref_obj((o)->ref)) : NULL))
-
-#define ppobj_get_bool_value(o) ((o)->type == PPBOOL ? ((o)->integer != 0) : 0)
-#define ppobj_get_int_value(o) ((o)->type == PPINT ? (o)->integer : 0)
-#define ppobj_get_num_value(o) ((o)->type == PPNUM ? (o)->number : ((o)->type == PPINT ? (ppnum)((o)->integer) : 0.0))
-
-/* name */
-
-#define ppname_is(name, s) (memcmp(name, s, sizeof("" s) - 1) == 0)
-#define ppname_eq(name, n) (memcmp(name, s, ppname_size(name)) == 0)
-
-#define _ppname_ghost(name) (((const _ppname *)(name)) - 1)
-#define ppname_size(name) (_ppname_ghost(name)->size)
-#define ppname_exec(name) (_ppname_ghost(name)->flags & PPNAME_EXEC)
-
-#define PPNAME_ENCODED (1 << 0)
-#define PPNAME_DECODED (1 << 1)
-#define PPNAME_EXEC (1 << 1)
-
-PPAPI ppname ppname_decoded (ppname name);
-PPAPI ppname ppname_encoded (ppname name);
-
-/* string */
-
-#define _ppstring_ghost(string) (((const _ppstring *)(string)) - 1)
-#define ppstring_size(string) (_ppstring_ghost(string)->size)
-
-#define PPSTRING_ENCODED (1 << 0)
-#define PPSTRING_DECODED (1 << 1)
-//#define PPSTRING_EXEC (1 << 2) // postscript only
-#define PPSTRING_PLAIN 0
-#define PPSTRING_BASE16 (1 << 3)
-#define PPSTRING_BASE85 (1 << 4)
-#define PPSTRING_UTF16BE (1 << 5)
-#define PPSTRING_UTF16LE (1 << 6)
-
-#define ppstring_type(string) (_ppstring_ghost(string)->flags & (PPSTRING_BASE16|PPSTRING_BASE85))
-#define ppstring_hex(string) (_ppstring_ghost(string)->flags & PPSTRING_BASE16)
-#define ppstring_utf(string) (_ppstring_ghost(string)->flags & (PPSTRING_UTF16BE|PPSTRING_UTF16LE))
-
-PPAPI ppstring ppstring_decoded (ppstring string);
-PPAPI ppstring ppstring_encoded (ppstring string);
-
-/* array */
-
-#define pparray_size(array) ((array)->size)
-#define pparray_at(array, index) ((array)->data + index)
-
-#define pparray_first(array, index, obj) ((index) = 0, (obj) = pparray_at(array, 0))
-#define pparray_next(index, obj) (++(index), ++(obj))
-
-#define pparray_get(array, index) (index < (array)->size ? pparray_at(array, index) : NULL)
-
-PPAPI ppobj * pparray_get_obj (pparray *array, size_t index);
-PPAPI int pparray_get_bool (pparray *array, size_t index, int *v);
-PPAPI int pparray_get_int (pparray *array, size_t index, ppint *v);
-PPAPI int pparray_get_uint (pparray *array, size_t index, ppuint *v);
-PPAPI int pparray_get_num (pparray *array, size_t index, ppnum *v);
-PPAPI ppname pparray_get_name (pparray *array, size_t index);
-PPAPI ppstring pparray_get_string (pparray *array, size_t index);
-PPAPI pparray * pparray_get_array (pparray *array, size_t index);
-PPAPI ppdict * pparray_get_dict (pparray *array, size_t index);
-//PPAPI ppstream * pparray_get_stream (pparray *array, size_t index);
-PPAPI ppref * pparray_get_ref (pparray *array, size_t index);
-
-PPAPI ppobj * pparray_rget_obj (pparray *array, size_t index);
-PPAPI int pparray_rget_bool (pparray *array, size_t index, int *v);
-PPAPI int pparray_rget_int (pparray *array, size_t index, ppint *v);
-PPAPI int pparray_rget_uint (pparray *array, size_t index, ppuint *v);
-PPAPI int pparray_rget_num (pparray *array, size_t index, ppnum *v);
-PPAPI ppname pparray_rget_name (pparray *array, size_t index);
-PPAPI ppstring pparray_rget_string (pparray *array, size_t index);
-PPAPI pparray * pparray_rget_array (pparray *array, size_t index);
-PPAPI ppdict * pparray_rget_dict (pparray *array, size_t index);
-PPAPI ppstream * pparray_rget_stream (pparray *array, size_t index);
-PPAPI ppref * pparray_rget_ref (pparray *array, size_t index);
-
-/* dict */
-
-#define ppdict_size(dict) ((dict)->size)
-#define ppdict_at(dict, index) ((dict)->data + index)
-#define ppdict_key(dict, index) ((dict)->keys[index])
-
-PPAPI ppobj * ppdict_get_obj (ppdict *dict, const char *name);
-PPAPI int ppdict_get_bool (ppdict *dict, const char *name, int *v);
-PPAPI int ppdict_get_int (ppdict *dict, const char *name, ppint *v);
-PPAPI int ppdict_get_uint (ppdict *dict, const char *name, ppuint *v);
-PPAPI int ppdict_get_num (ppdict *dict, const char *name, ppnum *v);
-PPAPI ppname ppdict_get_name (ppdict *dict, const char *name);
-PPAPI ppstring ppdict_get_string (ppdict *dict, const char *name);
-PPAPI pparray * ppdict_get_array (ppdict *dict, const char *name);
-PPAPI ppdict * ppdict_get_dict (ppdict *dict, const char *name);
-//PPAPI ppstream * ppdict_get_stream (ppdict *dict, const char *name);
-PPAPI ppref * ppdict_get_ref (ppdict *dict, const char *name);
-
-PPAPI ppobj * ppdict_rget_obj (ppdict *dict, const char *name);
-PPAPI int ppdict_rget_bool (ppdict *dict, const char *name, int *v);
-PPAPI int ppdict_rget_int (ppdict *dict, const char *name, ppint *v);
-PPAPI int ppdict_rget_uint (ppdict *dict, const char *name, ppuint *v);
-PPAPI int ppdict_rget_num (ppdict *dict, const char *name, ppnum *v);
-PPAPI ppname ppdict_rget_name (ppdict *dict, const char *name);
-PPAPI ppstring ppdict_rget_string (ppdict *dict, const char *name);
-PPAPI pparray * ppdict_rget_array (ppdict *dict, const char *name);
-PPAPI ppdict * ppdict_rget_dict (ppdict *dict, const char *name);
-PPAPI ppstream * ppdict_rget_stream (ppdict *dict, const char *name);
-PPAPI ppref * ppdict_rget_ref (ppdict *dict, const char *name);
-
-#define ppdict_first(dict, pkey, obj) (pkey = (dict)->keys, obj = (dict)->data)
-#define ppdict_next(pkey, obj) (++(pkey), ++(obj))
-
-/* stream */
-
-#define ppstream_dict(stream) ((stream)->dict)
-
-PPAPI uint8_t * ppstream_first (ppstream *stream, size_t *size, int decode);
-PPAPI uint8_t * ppstream_next (ppstream *stream, size_t *size);
-PPAPI uint8_t * ppstream_all (ppstream *stream, size_t *size, int decode);
-PPAPI void ppstream_done (ppstream *stream);
-
-PPAPI void ppstream_init_buffers (void);
-PPAPI void ppstream_free_buffers (void);
-
-/* ref */
-
-#define ppref_obj(ref) (&(ref)->object)
-
-/* xref */
-
-PPAPI ppxref * ppdoc_xref (ppdoc *pdf);
-PPAPI ppxref * ppxref_prev (ppxref *xref);
-PPAPI ppdict * ppxref_trailer (ppxref *xref);
-PPAPI ppdict * ppxref_catalog (ppxref *xref);
-PPAPI ppdict * ppxref_info (ppxref *xref);
-PPAPI ppref * ppxref_pages (ppxref *xref);
-PPAPI ppref * ppxref_find (ppxref *xref, ppuint refnumber);
-
-/* doc */
-
-PPAPI ppdoc * ppdoc_load (const char *filename);
-PPAPI ppdoc * ppdoc_mem (const void *data, size_t size);
-PPAPI void ppdoc_free (ppdoc *pdf);
-
-#define ppdoc_trailer(pdf) ppxref_trailer(ppdoc_xref(pdf))
-#define ppdoc_catalog(pdf) ppxref_catalog(ppdoc_xref(pdf))
-#define ppdoc_info(pdf) ppxref_info(ppdoc_xref(pdf))
-#define ppdoc_pages(pdf) ppxref_pages(ppdoc_xref(pdf))
-
-PPAPI ppuint ppdoc_page_count (ppdoc *pdf);
-PPAPI ppref * ppdoc_page (ppdoc *pdf, ppuint index);
-PPAPI ppref * ppdoc_first_page (ppdoc *pdf);
-PPAPI ppref * ppdoc_next_page (ppdoc *pdf);
-
-PPAPI ppstream * ppcontents_first (ppdict *dict);
-PPAPI ppstream * ppcontents_next (ppdict *dict, ppstream *stream);
-
-/* crypt */
-
-typedef enum {
- PPCRYPT_NONE = 0,
- PPCRYPT_DONE = 1,
- PPCRYPT_FAIL = -1,
- PPCRYPT_PASS = -2
-} ppcrypt_status;
-
-PPAPI ppcrypt_status ppdoc_crypt_status (ppdoc *pdf);
-PPAPI ppcrypt_status ppdoc_crypt_pass (ppdoc *pdf, const void *userpass, size_t userpasslength, const void *ownerpass, size_t ownerpasslength);
-
-/* permission flags, effect in Acrobat File -> Properties -> Security tab */
-
-PPAPI ppint ppdoc_permissions (ppdoc *pdf);
-
-#define PPDOC_ALLOW_PRINT (1<<2) // printing
-#define PPDOC_ALLOW_MODIFY (1<<3) // filling form fields, signing, creating template pages
-#define PPDOC_ALLOW_COPY (1<<4) // copying, copying for accessibility
-#define PPDOC_ALLOW_ANNOTS (1<<5) // filling form fields, copying, signing
-#define PPDOC_ALLOW_EXTRACT (1<<9) // contents copying for accessibility
-#define PPDOC_ALLOW_ASSEMBLY (1<<10) // (no effect)
-#define PPDOC_ALLOW_PRINT_HIRES (1<<11) // (no effect)
-
-/* context */
-
-typedef struct ppcontext ppcontext;
-
-PPAPI ppcontext * ppcontext_new (void);
-PPAPI void ppcontext_done (ppcontext *context);
-PPAPI void ppcontext_free (ppcontext *context);
-
-/* contents parser */
-
-PPAPI ppobj * ppcontents_first_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname);
-PPAPI ppobj * ppcontents_next_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname);
-PPAPI ppobj * ppcontents_parse (ppcontext *context, ppstream *stream, size_t *psize);
-
-/* boxes and transforms */
-
-typedef struct {
- ppnum lx, ly, rx, ry;
-} pprect;
-
-PPAPI pprect * pparray_to_rect (pparray *array, pprect *rect);
-PPAPI pprect * ppdict_get_rect (ppdict *dict, const char *name, pprect *rect);
-PPAPI pprect * ppdict_get_box (ppdict *dict, const char *name, pprect *rect);
-
-typedef struct {
- ppnum xx, xy, yx, yy, x, y;
-} ppmatrix;
-
-PPAPI ppmatrix * pparray_to_matrix (pparray *array, ppmatrix *matrix);
-PPAPI ppmatrix * ppdict_get_matrix (ppdict *dict, const char *name, ppmatrix *matrix);
-
-/* logger */
-
-typedef void (*pplogger_callback) (const char *message, void *alien);
-PPAPI void pplog_callback (pplogger_callback logger, void *alien);
-PPAPI int pplog_prefix (const char *prefix);
-
-/* version */
-
-PPAPI const char * ppdoc_version_string (ppdoc *pdf);
-PPAPI int ppdoc_version_number (ppdoc *pdf, int *minor);
-
-/* doc info */
-
-PPAPI size_t ppdoc_file_size (ppdoc *pdf);
-PPAPI ppuint ppdoc_objects (ppdoc *pdf);
-PPAPI size_t ppdoc_memory (ppdoc *pdf, size_t *waste);
-
-#endif
Deleted: trunk/Build/source/texk/web2c/luatexdir/luapplib/ppload.c-OK
===================================================================
--- trunk/Build/source/texk/web2c/luatexdir/luapplib/ppload.c-OK 2018-09-05 21:32:42 UTC (rev 48592)
+++ trunk/Build/source/texk/web2c/luatexdir/luapplib/ppload.c-OK 2018-09-05 21:35:27 UTC (rev 48593)
@@ -1,2555 +0,0 @@
-
-#include <utilbasexx.h>
-
-#include "pplib.h"
-
-const char * ppobj_kind[] = { "none", "null", "bool", "integer", "number", "name", "string", "array", "dict", "stream", "ref" };
-
-#define ignored_char(c) (c == 0x20 || c == 0x0A || c == 0x0D || c == 0x09 || c == 0x00)
-#define newline_char(c) (c == 0x0A || c == 0x0D)
-#define IGNORED_CHAR_CASE 0x20: case 0x0A: case 0x0D: case 0x09: case 0x00
-#define NEWLINE_CHAR_CASE 0x0A: case 0x0D
-#define DIGIT_CHAR_CASE '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9'
-#define OCTAL_CHAR_CASE '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7'
-
-#define MAX_INT_DIGITS 32
-
-#define PP_LENGTH_UNKNOWN ((size_t)-1)
-
-static const char * ppref_str (ppuint refnumber, ppuint refversion)
-{
- static char buffer[MAX_INT_DIGITS + 1 + MAX_INT_DIGITS + 1 + 1 + 1];
-#if defined(MSVC64)|| defined(MINGW64)
- sprintf(buffer, PPUINTF " " PPUINTF " R", refnumber, refversion);
-#else
- sprintf(buffer, PPUINTF " " PPUINTF " R", (unsigned long)(refnumber), (unsigned long)(refversion));
-#endif
- return buffer;
-}
-
-/* name */
-
-// pdf name delimiters: 0..32, ()<>[]{}/%
-// # treated specially
-// .+- are valid part of name; keep in mind names such as -| | |- .notdef ABCDEF+Font etc.
-const char ppname_byte_lookup[] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 1, 1, '#', 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
-};
-
-#define PPNAME_INIT (8+1)
-
-#define ppname_flush(O, ghost, siz, flgs) \
- (iof_put(O, '\0'), \
- ghost = (_ppname *)ppheap_flush(O, &siz), \
- ghost->flags = flgs, \
- ghost->size = siz - sizeof(_ppname) - 1, \
- (ppname)(ghost + 1))
-
-#define ppname_flush_with_ego(O, ghost, siz, flgs) \
- (iof_put(O, '\0'), \
- iof_ensure(O, sizeof(ppname *)), \
- O->pos += sizeof(ppname *), \
- ghost = (_ppname *)ppheap_flush(O, &siz), \
- ghost->flags = flgs, \
- ghost->size = siz - sizeof(_ppname) - 1 - sizeof(ppname *), \
- (ppname)(ghost + 1))
-
-#define ppname_set_alter_ego(name, ghost, ego) (*((ppname *)(name + (ghost)->size + 1)) = ego)
-#define ppname_get_alter_ego(name) (*((ppname *)(name + ppname_size(name) + 1)))
-
-static ppname ppscan_name (iof *I, ppheap **pheap)
-{
- int c, decode;
- iof *O;
- _ppname *ghost1, *ghost2;
- ppname encoded, decoded;
- size_t size;
- const char *p, *e;
- uint8_t v1, v2;
- O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT);
- for (decode = 0, c = iof_char(I); c >= 0 && ppname_byte_lookup[c]; c = iof_next(I))
- {
- if (c == '#')
- decode = 1;
- iof_put(O, c);
- }
- if (!decode)
- return ppname_flush(O, ghost1, size, 0);
- encoded = ppname_flush_with_ego(O, ghost1, size, 0|PPNAME_ENCODED);
- O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT);
- for (p = encoded, e = encoded + ghost1->size; p < e; ++p)
- {
- if (*p == '#' && p + 2 < e ){
- v1 = base16_value(p[1]);
- v2 = base16_value(p[2]);
- iof_put(O, ((v1<<4)+v2));
- }else
- iof_put(O, *p);
- }
- decoded = ppname_flush_with_ego(O, ghost2, size, 0|PPNAME_DECODED);
- ppname_set_alter_ego(encoded, ghost1, decoded);
- ppname_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-static ppname ppscan_exec (iof *I, ppheap **pheap, int first)
-{
- int c, decode;
- iof *O;
- _ppname *ghost1, *ghost2;
- ppname encoded, decoded;
- size_t size;
- const char *p, *e;
- uint8_t v1, v2;
-
- O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT);
- iof_put(O, first);
- for (decode = 0, c = iof_char(I); c >= 0 && ppname_byte_lookup[c]; c = iof_next(I))
- {
- if (c == '#')
- decode = 1;
- iof_put(O, c);
- }
- if (!decode)
- return ppname_flush(O, ghost1, size, PPNAME_EXEC);
- encoded = ppname_flush_with_ego(O, ghost1, size, PPNAME_EXEC|PPNAME_ENCODED);
- O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT);
- for (p = encoded, e = encoded + ghost1->size; p < e; ++p)
- {
- if (*p == '#' && p + 2 < e ){
- v1 = base16_value(p[1]);
- v2 = base16_value(p[2]);
- iof_put(O, ((v1<<4)+v2));
- }else
- iof_put(O, *p);
- }
- decoded = ppname_flush_with_ego(O, ghost2, size, PPNAME_EXEC|PPNAME_DECODED);
- ppname_set_alter_ego(encoded, ghost1, decoded);
- ppname_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-static ppname ppexec_internal (const void *data, size_t size, ppheap **pheap)
-{ // used only for artificial 'EI' operator name
- iof *O;
- _ppname *ghost1;
-
- O = ppheap_buffer(pheap, sizeof(_ppname), size);
- iof_write(O, data, size);
- return ppname_flush(O, ghost1, size, PPNAME_EXEC);
-}
-
-ppname ppname_decoded (ppname name)
-{
- const _ppname *ghost;
- ghost = _ppname_ghost(name);
- return (ghost->flags & PPNAME_ENCODED) ? ppname_get_alter_ego(name) : name;
-}
-
-ppname ppname_encoded (ppname name)
-{
- const _ppname *ghost;
- ghost = _ppname_ghost(name);
- return (ghost->flags & PPNAME_DECODED) ? ppname_get_alter_ego(name) : name;
-}
-
-/* string */
-
-#define PPSTRING_INIT (16+1)
-
-#define ppstring_flush(O, ghost, siz, flgs) \
- (iof_put(O, '\0'), \
- ghost = (_ppstring *)ppheap_flush(O, &siz), \
- ghost->flags = flgs, \
- ghost->size = siz - sizeof(_ppstring) - 1, \
- (ppstring)(ghost + 1))
-
-#define ppstring_flush_with_ego(O, ghost, siz, flgs) \
- (iof_put(O, '\0'), \
- iof_ensure(O, sizeof(ppstring *)), \
- O->pos += sizeof(ppstring *), \
- ghost = (_ppstring *)ppheap_flush(O, &siz), \
- ghost->flags = flgs, \
- ghost->size = siz - sizeof(_ppstring) - 1 - sizeof(ppstring *), \
- (ppstring)(ghost + 1))
-
-#define ppstring_utf16be_bom(decoded) (decoded[0] == ((char)0xFE) && decoded[1] == ((char)0xFF) )
-#define ppstring_utf16le_bom(decoded) (decoded[0] == ((char)0xFF) && decoded[1] == ((char)0xFE))
-
-#define ppstring_check_bom(decoded, ghost) ((void)\
- (ghost->size >= 2 ? (ppstring_utf16be_bom(decoded) ? (ghost->flags |= PPSTRING_UTF16BE) : \
- (ppstring_utf16le_bom(decoded) ? (ghost->flags |= PPSTRING_UTF16LE) : 0)) : 0))
-
-#define ppstring_check_bom2(decoded, ghost1, ghost2) ((void)\
- (ghost2->size >= 2 ? (ppstring_utf16be_bom(decoded) ? ((ghost1->flags |= PPSTRING_UTF16BE), (ghost2->flags |= PPSTRING_UTF16BE)) : \
- (ppstring_utf16le_bom(decoded) ? ((ghost1->flags |= PPSTRING_UTF16LE), (ghost2->flags |= PPSTRING_UTF16LE)) : 0)) : 0))
-
-#define ppstring_set_alter_ego(string, ghost, ego) (*((ppstring *)(string + (ghost)->size + 1)) = ego)
-#define ppstring_get_alter_ego(string) (*((ppstring *)(string + ppstring_size(string) + 1)))
-
-static ppstring ppscan_string (iof *I, ppheap **pheap)
-{
- int c, decode, balance;
- iof *O;
- _ppstring *ghost1, *ghost2;
- uint8_t *p, *e;
- ppstring encoded, decoded;
- size_t size;
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- for (decode = 0, balance = 0, c = iof_char(I); c >= 0; )
- {
- switch (c)
- {
- case '\\':
- decode = 1; // unescaping later
- iof_put(O, '\\');
- if ((c = iof_next(I)) >= 0)
- {
- iof_put(O, c);
- c = iof_next(I);
- }
- break;
- case '(': // may be unescaped if balanced
- ++balance;
- iof_put(O, '(');
- c = iof_next(I);
- break;
- case ')':
- if (balance == 0)
- {
- c = IOFEOF;
- ++I->pos;
- break;
- }
- --balance;
- iof_put(O, ')');
- c = iof_next(I);
- break;
- default:
- iof_put(O, c);
- c = iof_next(I);
- }
- }
- if (!decode)
- {
- encoded = ppstring_flush(O, ghost1, size, 0);
- ppstring_check_bom(encoded, ghost1); // any bytes can be there
- return encoded;
- }
- encoded = ppstring_flush_with_ego(O, ghost1, size, 0|PPSTRING_ENCODED);
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- for (p = (uint8_t *)encoded, e = (uint8_t *)encoded + ghost1->size; p < e; ++p)
- {
- if (*p == '\\')
- {
- if (++p >= e)
- break;
- switch (*p)
- {
- case OCTAL_CHAR_CASE:
- c = *p - '0';
- if (++p < e && *p >= '0' && *p <= '7')
- {
- c = (c << 3) + *p - '0';
- if (++p < e && *p >= '0' && *p <= '7')
- c = (c << 3) + *p - '0';
- }
- iof_put(O, c);
- break;
- case 'n':
- iof_put(O, '\n');
- break;
- case 'r':
- iof_put(O, '\r');
- break;
- case 't':
- iof_put(O, '\t');
- break;
- case 'b':
- iof_put(O, '\b');
- break;
- case 'f':
- iof_put(O, '\f');
- break;
- case NEWLINE_CHAR_CASE: // not a part of the string, ignore (pdf spec page 55)
- break;
- case '(': case ')': case '\\':
- default: // for enything else backslash is ignored (pdf spec page 54)
- iof_put(O, *p);
- break;
- }
- }
- else
- iof_put(O, *p);
- }
- decoded = ppstring_flush_with_ego(O, ghost2, size, 0|PPSTRING_DECODED);
- ppstring_check_bom2(decoded, ghost1, ghost2);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-/* Hex string may contain white characters. If odd number of digits, the last assumed to be '0' */
-
-static ppstring ppscan_base16 (iof *I, ppheap **pheap)
-{
- int c, v1, v2;
- iof *O;
- _ppstring *ghost1, *ghost2;
- size_t size;
- ppstring encoded, decoded;
- uint8_t *p, *e;
-
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- for (c = iof_char(I); c >= 0 && (base16_digit(c) || ignored_char(c)); c = iof_next(I))
- iof_put(O, c);
- if (c == '>')
- ++I->pos;
- encoded = ppstring_flush_with_ego(O, ghost1, size, PPSTRING_BASE16|PPSTRING_ENCODED);
- O = ppheap_buffer(pheap, sizeof(_ppstring), (ghost1->size >> 1) + 1);
- for (p = (uint8_t *)encoded, e = (uint8_t *)encoded + ghost1->size; p < e; ++p)
- {
- if ((v1 = base16_value(*p)) < 0) // ignored
- continue;
- for (v2 = 0, ++p; p < e && (v2 = base16_value(*p)) < 0; ++p);
- iof_put(O, (v1<<4)|v2);
- }
- decoded = ppstring_flush_with_ego(O, ghost2, size, 0|PPSTRING_DECODED);
- ppstring_check_bom2(decoded, ghost1, ghost2);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-/* internal use only; binary string */
-
-static ppstring ppstring_buffer (iof *O, ppheap **pheap)
-{
- _ppstring *ghost1, *ghost2;
- ppstring encoded, decoded;
- uint8_t *p, *e;
- size_t size;
-
- decoded = ppstring_flush_with_ego(O, ghost2, size, 0|PPSTRING_DECODED);
- O = ppheap_buffer(pheap, sizeof(_ppstring), (ghost2->size << 1) + 1);
- for (p = (uint8_t *)decoded, e = (uint8_t *)decoded + ghost2->size; p < e; ++p)
- iof_set2(O, base16_uc_alphabet[(*p)>>4], base16_uc_alphabet[(*p)&15]);
- encoded = ppstring_flush_with_ego(O, ghost1, size, PPSTRING_BASE16|PPSTRING_ENCODED);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-ppstring ppstring_internal (const void *data, size_t size, ppheap **pheap)
-{ // so far used only for crypt key
- iof *O;
-
- O = ppheap_buffer(pheap, sizeof(_ppstring), size);
- iof_write(O, data, size);
- return ppstring_buffer(O, pheap);
-}
-
-/* PDF spec says nothing about base85 strings, but streams might be (afair no leading '<~' but present trailing '~>') */
-
-static ppstring ppscan_base85 (iof *I, ppheap **pheap)
-{ // bawse85 alphabet is 33.117, adobe also hires 'z' and 'y' for compression
- int c;
- iof *O, B;
- _ppstring *ghost1, *ghost2;
- size_t size;
- ppstring encoded, decoded;
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- for (c = iof_char(I); (c >= '!' && c <= 'u') || c == 'z' || c == 'y'; c = iof_next(I))
- iof_put(O, c);
- if (c == '~')
- if ((c = iof_next(I)) == '>')
- ++I->pos;
- encoded = ppstring_flush_with_ego(O, ghost1, size, PPSTRING_BASE85|PPSTRING_ENCODED);
- iof_string_reader(&B, encoded, ghost1->size);
- O = ppheap_buffer(pheap, sizeof(_ppstring), (ghost1->size * 5 / 4) + 1);
- base85_decode(&B, O);
- decoded = ppstring_flush_with_ego(O, ghost2, size, 0|PPSTRING_DECODED);
- ppstring_check_bom2(decoded, ghost1, ghost2);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-/*
-Encrypted strings. In case of encrypted strings, we first need to decode the string (saving original form hardly makes sense),
-then decrypt the string, and encode it again.
-*/
-
-const char ppstring_byte_escape[] = { /* -1 escaped with octal, >0 escaped with \\, 0 left intact*/
- -1,-1,-1,-1,-1,-1,-1,-1,'b','t','n',-1,'f','r',-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- 0, 0, 0, 0, 0, 0, 0, 0,'(',')', 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,'\\', 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
-};
-
-
-static ppstring ppscan_crypt_string (iof *I, ppcrypt *crypt, ppheap **pheap)
-{
- int c, b, balance, encode;
- iof *O;
- _ppstring *ghost1, *ghost2;
- ppstring encoded, decoded;
- uint8_t *p, *e;
- size_t size;
-
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- for (balance = 0, encode = 0, c = iof_char(I); c >= 0; )
- {
- switch (c)
- {
- case '\\':
- if ((c = iof_next(I)) < 0)
- break;
- encode = 1;
- switch (c)
- {
- case OCTAL_CHAR_CASE:
- b = c - '0';
- if ((c = iof_next(I)) >= 0 && c >= '0' && c <= '7')
- {
- b = (b << 3) + c - '0';
- if ((c = iof_next(I)) >= 0 && c >= '0' && c <= '7')
- {
- b = (b << 3) + c - '0';
- c = iof_next(I);
- }
- }
- iof_put(O, b);
- // c is set to the next char
- break;
- case 'n':
- iof_put(O, '\n');
- c = iof_next(I);
- break;
- case 'r':
- iof_put(O, '\r');
- c = iof_next(I);
- break;
- case 't':
- iof_put(O, '\t');
- c = iof_next(I);
- break;
- case 'b':
- iof_put(O, '\b');
- c = iof_next(I);
- break;
- case 'f':
- iof_put(O, '\f');
- c = iof_next(I);
- break;
- case NEWLINE_CHAR_CASE: // not a part of the string, ignore (pdf spec page 55)
- c = iof_next(I);
- break;
- case '(': case ')': case '\\':
- default: // for enything else backslash is ignored (pdf spec page 54)
- iof_put(O, c);
- c = iof_next(I);
- break;
- }
- break;
- case '(':
- ++balance;
- encode = 1;
- iof_put(O, '(');
- c = iof_next(I);
- break;
- case ')':
- if (balance == 0)
- {
- c = IOFEOF;
- ++I->pos;
- }
- else
- {
- --balance;
- //encode = 1;
- iof_put(O, ')');
- c = iof_next(I);
- }
- break;
- default:
- if (ppstring_byte_escape[c] != 0)
- encode = 1;
- iof_put(O, c);
- c = iof_next(I);
- }
- }
- /* decrypt the buffer in place, update size */
- if (ppstring_decrypt(crypt, O->buf, iof_size(O), O->buf, &size))
- O->pos = O->buf + size;
- /* make encoded counterpart */
- if (!encode)
- {
- decoded = ppstring_flush(O, ghost2, size, 0);
- ppstring_check_bom(decoded, ghost2);
- return decoded;
- }
- decoded = ppstring_flush_with_ego(O, ghost2, size, PPSTRING_DECODED);
- O = ppheap_buffer(pheap, sizeof(_ppstring), ghost2->size);
- for (p = (uint8_t *)decoded, e = (uint8_t *)decoded + ghost2->size; p < e; ++p)
- {
- switch ((b = ppstring_byte_escape[*p]))
- {
- case 0:
- iof_put(O, *p);
- break;
- case -1:
- iof_put4(O, '\\', (c >> 6) + '0', ((c >> 3) & 7) + '0', (c & 7) + '0');
- break;
- default:
- iof_put2(O, '\\', b);
- break;
- }
- }
- encoded = ppstring_flush_with_ego(O, ghost1, size, PPSTRING_ENCODED);
- ppstring_check_bom2(decoded, ghost1, ghost2);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-
-static ppstring ppscan_crypt_base16 (iof *I, ppcrypt *crypt, ppheap **pheap)
-{
- int c, v1, v2;
- iof *O;
- _ppstring *ghost1, *ghost2;
- ppstring encoded, decoded;
- uint8_t *p, *e;
- size_t size;
-
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- // base16_decode(I, O); // no info about the last char..
- for (c = iof_char(I); c != '>' && c >= 0; )
- {
- if ((v1 = base16_value(c)) < 0)
- {
- if (ignored_char(c))
- {
- c = iof_next(I);
- continue;
- }
- break;
- }
- do {
- c = iof_next(I);
- if ((v2 = base16_value(c)) >= 0)
- {
- c = iof_next(I);
- break;
- }
- if (!ignored_char(c)) // c == '>' || c < 0 or some crap
- {
- v2 = 0;
- break;
- }
- } while (1);
- iof_put(O, (v1 << 4)|v2);
- }
- if (c == '>')
- ++I->pos;
- /* decrypt the buffer in place, update size */
- if (ppstring_decrypt(crypt, O->buf, iof_size(O), O->buf, &size))
- O->pos = O->buf + size;
- decoded = ppstring_flush_with_ego(O, ghost2, size, PPSTRING_DECODED);
- /* recreate an encoded form */
- O = ppheap_buffer(pheap, sizeof(_ppstring), (ghost2->size << 1) + 1);
- for (p = (uint8_t *)decoded, e = (uint8_t *)decoded + ghost2->size; p < e; ++p)
- iof_set2(O, base16_uc_alphabet[(*p)>>4], base16_uc_alphabet[(*p)&15]);
- encoded = ppstring_flush_with_ego(O, ghost1, size, PPSTRING_BASE16|PPSTRING_ENCODED);
- ppstring_check_bom2(decoded, ghost1, ghost2);
- ppstring_set_alter_ego(encoded, ghost1, decoded);
- ppstring_set_alter_ego(decoded, ghost2, encoded);
- return encoded;
-}
-
-/* ppstring alter ego switcher */
-
-ppstring ppstring_decoded (ppstring string)
-{
- const _ppstring *ghost;
- ghost = _ppstring_ghost(string);
- return (ghost->flags & PPSTRING_ENCODED) ? ppstring_get_alter_ego(string) : string;
-}
-
-ppstring ppstring_encoded (ppstring string)
-{
- const _ppstring *ghost;
- ghost = _ppstring_ghost(string);
- return (ghost->flags & PPSTRING_DECODED) ? ppstring_get_alter_ego(string) : string;
-}
-
-/* scanner stack */
-
-#define PPSTACK_BUFFER 512
-
-static void ppstack_init (ppstack *stack, ppheap **pheap)
-{
- stack->buf = stack->pos = (ppobj *)pp_malloc(PPSTACK_BUFFER * sizeof(ppobj));
- stack->size = 0;
- stack->space = PPSTACK_BUFFER;
- stack->pheap = pheap;
-}
-
-#define ppstack_free_buffer(stack) (pp_free((stack)->buf))
-
-static void ppstack_resize (ppstack *stack)
-{
- ppobj *newbuffer;
- stack->space <<= 1;
- newbuffer = (ppobj *)pp_malloc(stack->space * sizeof(ppobj));
- memcpy(newbuffer, stack->buf, stack->size * sizeof(ppobj));
- ppstack_free_buffer(stack);
- stack->buf = newbuffer;
- stack->pos = newbuffer + stack->size;
-}
-
-#define ppstack_push(stack) ((void)((stack)->size < (stack)->space || (ppstack_resize(stack), 0)), ++(stack)->size, (stack)->pos++)
-#define ppstack_pop(stack, n) ((stack)->size -= (n), (stack)->pos -= (n))
-#define ppstack_at(stack, i) ((stack)->buf + i)
-#define ppstack_clear(stack) ((stack)->pos = (stack)->buf, (stack)->size = 0)
-
-/* scanner commons */
-
-#define ppscan_uint(I, u) iof_get_uintlw(I, u)
-#define ppread_uint(s, u) string_to_uintlw((const char *)(s), u)
-
-static ppobj * ppscan_numobj (iof *I, ppobj *obj, int negative)
-{
- ppint integer;
- ppnum number;
- int exponent;
- int c;
- c = iof_char(I);
- iof_scan_integer(I, c, integer);
- switch(c)
- {
- case '.':
- {
- number = (ppnum)integer;
- c = iof_next(I);
- iof_scan_fraction(I, c, number, exponent);
- double_negative_exp10(number, exponent);
- obj->type = PPNUM, obj->number = negative ? -number : number;
- break;
- }
- default:
- obj->type = PPINT, obj->integer = negative ? -integer : integer;
- break;
- }
- return obj;
-}
-
-static ppobj * ppscan_numobj_frac (iof *I, ppobj *obj, int negative)
-{
- ppnum number;
- int c, exponent;
-
- number = 0.0;
- c = iof_next(I);
- iof_scan_fraction(I, c, number, exponent);
- double_negative_exp10(number, exponent);
- obj->type = PPNUM, obj->number = negative ? -number : number;
- return obj;
-}
-
-static int ppscan_find (iof *I)
-{ // skips whitechars and comments
- int c;
- for (c = iof_char(I); ; c = iof_next(I))
- {
- switch (c)
- {
- case IGNORED_CHAR_CASE:
- break;
- case '%': {
- do {
- if ((c = iof_next(I)) < 0)
- return c;
- } while (!newline_char(c));
- break;
- }
- default:
- return c;
- }
- }
- return c; // never reached
-}
-
-static int ppscan_keyword (iof *I, const char *keyword, size_t size)
-{
- size_t i;
- int c;
- if (iof_left(I) >= size)
- {
- if (memcmp(I->pos, keyword, size) != 0)
- return 0;
- I->pos += size;
- return 1;
- }
- // sticky case, we can't go back
- for (i = 0, c = iof_char(I); i < size; ++i, ++keyword, c = iof_next(I))
- if (i != c)
- return 0;
- return 1;
-}
-
-#define ppscan_key(I, literal) ppscan_keyword(I, "" literal, sizeof(literal) - 1)
-
-/* objects parser */
-
-static ppref * ppref_unresolved (ppheap **pheap, ppuint refnumber, ppuint refversion)
-{
- ppref *ref = (ppref *)ppheap_take(pheap, sizeof(ppref));
- memset(ref, 0, sizeof(ppref));
- ref->object.type = PPNONE;
- ref->number = refnumber;
- ref->version = refversion;
- return ref;
-}
-
-#define PPMARK PPNONE
-
-static ppobj * ppscan_obj (iof *I, ppdoc *pdf, ppxref *xref)
-{
- int c;
- ppobj *obj;
- size_t mark, size;
- ppuint refnumber, refversion;
- ppref *ref;
- ppstack *stack;
- ppcrypt *crypt;
-
- stack = &pdf->stack;
- c = iof_char(I);
- switch (c)
- {
- case DIGIT_CHAR_CASE:
- return ppscan_numobj(I, ppstack_push(stack), 0);
- case '.':
- return ppscan_numobj_frac(I, ppstack_push(stack), 0);
- case '+':
- ++I->pos;
- return ppscan_numobj(I, ppstack_push(stack), 0);
- case '-':
- ++I->pos;
- return ppscan_numobj(I, ppstack_push(stack), 1);
- case '/':
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPNAME;
- obj->name = ppscan_name(I, &pdf->heap);
- return obj;
- case '(':
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPSTRING;
- if (ppcrypt_ref(pdf, crypt))
- obj->string = ppscan_crypt_string(I, crypt, &pdf->heap);
- else
- obj->string = ppscan_string(I, &pdf->heap);
- return obj;
- case '[':
- mark = stack->size;
- obj = ppstack_push(stack);
- obj->type = PPMARK; // ppscan_obj() checks types backward for 'R', so set the type immediatelly (reserved for PPARRAY)
- obj->any = NULL;
- ++I->pos;
- for (c = ppscan_find(I); c != ']'; c = ppscan_find(I))
- {
- if (ppscan_obj(I, pdf, xref) == NULL)
- { // callers assume that NULL returns means nothing pushed
- size = stack->size - mark; // pop items AND the obj reserved for array
- ppstack_pop(stack, size);
- return NULL;
- }
- }
- ++I->pos;
- size = stack->size - mark - 1;
- obj = ppstack_at(stack, mark); // stack might have been realocated
- obj->type = PPARRAY;
- obj->array = pparray_create(ppstack_at(stack, mark + 1), size, &pdf->heap);
- ppstack_pop(stack, size); // pop array items, leave the array on top
- return obj;
- case '<':
- if ((c = iof_next(I)) == '<')
- {
- mark = stack->size;
- obj = ppstack_push(stack);
- obj->type = PPMARK;
- obj->any = NULL;
- ++I->pos;
- for (c = ppscan_find(I); c != '>'; c = ppscan_find(I))
- {
- if (ppscan_obj(I, pdf, xref) == NULL)
- {
- size = stack->size - mark;
- ppstack_pop(stack, size);
- return NULL;
- }
- }
- if (iof_next(I) == '>')
- ++I->pos;
- size = stack->size - mark - 1;
- obj = ppstack_at(stack, mark);
- obj->type = PPDICT;
- obj->dict = ppdict_create(ppstack_at(stack, mark + 1), size, &pdf->heap);
- ppstack_pop(stack, size);
- return obj;
- }
- obj = ppstack_push(stack);
- obj->type = PPSTRING;
- if (ppcrypt_ref(pdf, crypt))
- obj->string = ppscan_crypt_base16(I, crypt, &pdf->heap);
- else
- obj->string = ppscan_base16(I, &pdf->heap);
- return obj;
- case 'R':
- if (stack->size >= 2 && stack->pos[-1].type == PPINT && stack->pos[-2].type == PPINT)
- {
- ++I->pos;
- obj = &stack->pos[-2];
- refnumber = (ppuint)obj->integer;
- ppstack_pop(stack, 1); // pop version number, retype obj to a reference
- if (xref == NULL || (ref = ppxref_find(xref, refnumber)) == NULL)
- { /* pdf spec page 64: unresolvable reference is not an error, should just be treated as a reference to null.
- we also need this to read trailer, where refs can't be resolved yet */
- refversion = (obj + 1)->integer;
- //if (xref != NULL)
- // loggerf("unresolved reference %s", ppref_str(refnumber, refversion));
- ref = ppref_unresolved(stack->pheap, refnumber, refversion);
- }
- obj->type = PPREF;
- obj->ref = ref;
- return obj;
- }
- break;
- case 't':
- if (iof_next(I) == 'r' && iof_next(I) == 'u' && iof_next(I) == 'e')
- {
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPBOOL;
- obj->integer = 1;
- return obj;
- }
- break;
- case 'f':
- if (iof_next(I) == 'a' && iof_next(I) == 'l' && iof_next(I) == 's' && iof_next(I) == 'e')
- {
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPBOOL;
- obj->integer = 0;
- return obj;
- }
- break;
- case 'n':
- if (iof_next(I) == 'u' && iof_next(I) == 'l' && iof_next(I) == 'l')
- {
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPNULL;
- obj->any = NULL;
- return obj;
- }
- break;
- }
- return NULL;
-}
-
-/*
-A variant for contents streams (aka postscript); wise of operators, blind to references.
-We are still PDF, so we don't care about postscript specific stuff such as radix numbers
-and scientific numbers notation. It takes ppstack * as context (no ppdoc *) to be able
-to run contents parser beyond the scope of ppdoc heap.
-*/
-
-static ppstring ppstring_inline (iof *I, ppdict *imagedict, ppheap **pheap);
-
-static ppobj * ppscan_psobj (iof *I, ppstack *stack)
-{
- int c;
- ppobj *obj, *op;
- size_t size, mark;
- ppname exec;
-
- c = iof_char(I);
- switch (c)
- {
- case DIGIT_CHAR_CASE:
- return ppscan_numobj(I, ppstack_push(stack), 0);
- case '.':
- return ppscan_numobj_frac(I, ppstack_push(stack), 0);
- case '+':
- c = iof_next(I);
- if (base10_digit(c)) // '+.abc' is probably an executable name, but we are not in postscript
- return ppscan_numobj(I, ppstack_push(stack), 0);
- else if (c == '.')
- return ppscan_numobj_frac(I, ppstack_push(stack), 0);
- obj = ppstack_push(stack);
- obj->type = PPNAME;
- obj->name = ppscan_exec(I, stack->pheap, '+');
- return obj;
- case '-':
- c = iof_next(I);
- if (base10_digit(c)) // ditto, we would handle type1 '-|' '|-' operators though
- return ppscan_numobj(I, ppstack_push(stack), 1);
- else if (c == '.')
- return ppscan_numobj_frac(I, ppstack_push(stack), 1);
- obj = ppstack_push(stack);
- obj->type = PPNAME;
- obj->name = ppscan_exec(I, stack->pheap, '-');
- return obj;
- case '/':
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPNAME;
- obj->name = ppscan_name(I, stack->pheap);
- return obj;
- case '(':
- ++I->pos;
- obj = ppstack_push(stack);
- obj->type = PPSTRING;
- obj->string = ppscan_string(I, stack->pheap);
- return obj;
- case '[':
- mark = stack->size;
- obj = ppstack_push(stack);
- obj->type = PPMARK;
- obj->any = NULL;
- ++I->pos;
- for (c = ppscan_find(I); c != ']'; c = ppscan_find(I))
- {
- if (ppscan_psobj(I, stack) == NULL)
- {
- size = stack->size - mark;
- ppstack_pop(stack, size);
- return NULL;
- }
- }
- ++I->pos;
- size = stack->size - mark - 1;
- obj = ppstack_at(stack, mark);
- obj->type = PPARRAY;
- obj->array = pparray_create(ppstack_at(stack, mark + 1), size, stack->pheap);
- ppstack_pop(stack, size);
- return obj;
- case '<':
- if ((c = iof_next(I)) == '<')
- {
- mark = stack->size;
- obj = ppstack_push(stack);
- obj->type = PPMARK;
- obj->any = NULL;
- ++I->pos;
- for (c = ppscan_find(I); c != '>'; c = ppscan_find(I))
- {
- if (ppscan_psobj(I, stack) == NULL)
- {
- size = stack->size - mark;
- ppstack_pop(stack, size);
- return NULL;
- }
- }
- if (iof_next(I) == '>')
- ++I->pos;
- size = stack->size - mark - 1;
- obj = ppstack_at(stack, mark);
- obj->type = PPDICT;
- obj->dict = ppdict_create(ppstack_at(stack, mark + 1), size, stack->pheap);
- ppstack_pop(stack, size);
- return obj;
- }
- obj = ppstack_push(stack);
- obj->type = PPSTRING;
- if (c == '~')
- ++I->pos, obj->string = ppscan_base85(I, stack->pheap);
- else
- obj->string = ppscan_base16(I, stack->pheap);
- return obj;
- default:
- if (c < 0 || !ppname_byte_lookup[c])
- break; // forbid empty names; dead loop otherwise
- ++I->pos;
- /* true false null practically don't occur in streams so it makes sense to assume that we get an operator name here.
- If it happen to be a keyword we could give back those several bytes to the heap but.. heap buffer is tricky enough. */
- exec = ppscan_exec(I, stack->pheap, c);
- obj = ppstack_push(stack);
- switch (exec[0])
- {
- case 't':
- if (exec[1] == 'r' && exec[2] == 'u' && exec[3] == 'e' && exec[4] == '\0')
- {
- obj->type = PPBOOL;
- obj->integer = 1;
- // todo: drop exec
- return obj;
- }
- break;
- case 'f':
- if (exec[1] == 'a' && exec[2] == 'l' && exec[3] == 's' && exec[4] == 'e' && exec[5] == '\0')
- {
- obj->type = PPBOOL;
- obj->integer = 0;
- // todo: drop exec
- return obj;
- }
- break;
- case 'n':
- if (exec[1] == 'u' && exec[2] == 'l' && exec[3] == 'l' && exec[4] == '\0')
- {
- obj->type = PPNULL;
- obj->any = NULL;
- // todo: drop exec
- return obj;
- }
- break;
- case 'B':
- /*
- Inline images break rules of operand/operator syntax, so 'BI/ID' operators need to be treated as special syntactic keywords.
-
- BI <keyval pairs> ID<whitechar?><imagedata><whitechar?>EI
-
- We treat the image as a single syntactic token; BI starts collecting a dict, ID is the beginning of the data. Effectively EI
- operator obtains two operands - dict and string. It is ok to put three items onto the stack, callers dont't assume there is just one.
- */
- if (exec[1] == 'I' && exec[2] == '\0')
- {
- ppdict *imagedict;
- /* key val pairs -> dict */
- mark = stack->size - 1;
- obj->type = PPMARK;
- obj->any = NULL;
- for (c = ppscan_find(I); ; c = ppscan_find(I))
- {
- if ((op = ppscan_psobj(I, stack)) == NULL)
- {
- size = stack->size - mark;
- ppstack_pop(stack, size);
- return NULL;
- }
- if (op->type == PPNAME && ppname_exec(op->name))
- {
- if (!ppname_is(op->name, "ID"))
- { // weird
- size = stack->size - mark;
- ppstack_pop(stack, size);
- return NULL;
- }
- break;
- }
- }
- size = stack->size - mark - 1;
- obj = ppstack_at(stack, mark);
- obj->type = PPDICT;
- obj->dict = imagedict = ppdict_create(ppstack_at(stack, mark + 1), size, stack->pheap);
- ppstack_pop(stack, size);
- /* put image data string */
- obj = ppstack_push(stack);
- obj->type = PPSTRING;
- obj->string = ppstring_inline(I, imagedict, stack->pheap);;
- /* put EI operator name */
- obj = ppstack_push(stack);
- obj->type = PPNAME;
- obj->name = ppexec_internal("EI", 2, stack->pheap);
- return obj;
- }
- }
- obj->type = PPNAME;
- obj->name = exec;
- return obj;
- }
- return NULL;
-}
-
-/*
-We try to get the exact inline image length from its dict params. If cannot predict the length, we have to scan the input until 'EI'.
-I've checked on may examples that it gives the same results but one can never be sure, as 'EI' might happen to be a part of the data.
-Stripping white char is also very heuristic; \0 is a white char in PDF and very likely to be a data byte.. weak method.
-*/
-
-static size_t inline_image_length (ppdict *dict)
-{
- ppuint w, h, bpc, colors;
- ppname cs;
-
- if (ppdict_get_uint(dict, "W", &w) && ppdict_get_uint(dict, "H", &h) && ppdict_get_uint(dict, "BPC", &bpc) && (cs = ppdict_get_name(dict, "CS")) != NULL)
- {
- if (ppname_is(cs, "DeviceGray"))
- colors = 1;
- else if (ppname_is(cs, "DeviceRGB"))
- colors = 3;
- else if (ppname_is(cs, "DeviceCMYK"))
- colors = 4;
- else
- return PP_LENGTH_UNKNOWN;
- return (w * h * bpc * colors + 7) >> 3;
- }
- return PP_LENGTH_UNKNOWN;
-}
-
-static ppstring ppstring_inline (iof *I, ppdict *imagedict, ppheap **pheap)
-{
- iof *O;
- int c, d, e;
- size_t length, leftin, leftout, bytes;
-
- O = ppheap_buffer(pheap, sizeof(_ppstring), PPSTRING_INIT);
- c = iof_char(I);
- if (ignored_char(c))
- c = iof_next(I);
-
- length = inline_image_length(imagedict);
- if (length != PP_LENGTH_UNKNOWN)
- {
- while (length > 0 && iof_readable(I) && iof_writable(O))
- {
- leftin = iof_left(I);
- leftout = iof_left(O);
- bytes = length;
- if (bytes > leftin) bytes = leftin;
- if (bytes > leftout) bytes = leftout;
- memcpy(O->pos, I->pos, bytes);
- I->pos += bytes;
- O->pos += bytes;
- length -= bytes;
- }
- // gobble EI
- if (ppscan_find(I) == 'E')
- if (iof_next(I) == 'I')
- ++I->pos;
- }
- else
- {
- while (c >= 0)
- {
- if (c == 'E')
- {
- d = iof_next(I);
- if (d == 'I')
- {
- e = iof_next(I);
- if (!ppname_byte_lookup[e])
- { /* strip one newline from the end and stop */
- if (O->pos - 2 >= O->buf) // sanity
- {
- c = *(O->pos - 1);
- if (ignored_char(c))
- {
- if (c == 0x0A && *(O->pos - 2) == 0x0D)
- O->pos -= 2;
- else
- O->pos -= 1;
- }
- }
- break;
- }
- iof_put2(O, c, d);
- c = e;
- }
- else
- {
- iof_put(O, c);
- c = d;
- }
- }
- else
- {
- iof_put(O, c);
- c = iof_next(I);
- }
- }
- }
- return ppstring_buffer(O, pheap);
-}
-
-/* input reader */
-
-/*
-PDF input is a pseudo file that either keeps FILE * or data. Reader iof * is a proxy to input
-that provides byte-by-byte interface. Our iof structure is capable to link iof_file *input,
-but t avoid redundant checks on IOF_DATA flag, here we link iof *I directly to FILE * or mem buffer.
-When reading from file we need an internal buffer, which should be kept rather small, as it is
-only used to parse xrefs and objects (no streams). We allocate the buffer from a private heap
-(not static) to avoid conflicts when processing >1 pdfs at once. Besides, the input buffer may be
-needed after loading the document, eg. to access references raw data.
-*/
-
-#define PPDOC_BUFFER 0xFFF // keep that small, it is only used to parse body objects
-
-static void ppdoc_reader_init (ppdoc *pdf, iof_file *input)
-{
- iof *I;
- pdf->input = *input;
- input = &pdf->input;
- input->refcount = 1;
- I = &pdf->reader;
- if (input->flags & IOF_DATA)
- {
- pdf->buffer = NULL; // input iof_file is the buffer
- iof_string_reader(I, NULL, 0); // gets IOF_DATA flag
- }
- else
- {
- pdf->buffer = (uint8_t *)ppheap_take(&pdf->heap, PPDOC_BUFFER);
- iof_setup_file_handle_reader(I, NULL, 0, iof_file_get_fh(input)); // gets IOF_FILE_HANDLE flag and FILE *
- I->space = PPDOC_BUFFER; // used on refill
- }
-}
-
-/*
-Whenever we need to read the input file, we fseek the to the given offset and fread to to the private buffer.
-The length we need is not always predictable, in which case PPDOC_BUFFER bytes are read (keep it small).
-I->buf = I->pos is set to the beginning, I->end set to the end (end is the first byte one shouldn't read).
-*/
-
-static iof * ppdoc_reader (ppdoc *pdf, size_t offset, size_t length)
-{
- iof_file *input;
- iof *I;
- input = &pdf->input;
- I = &pdf->reader;
- if (iof_file_seek(input, offset, SEEK_SET) != 0)
- return NULL;
- I->flags &= ~IOF_STOPPED;
- if (input->flags & IOF_DATA)
- {
- I->buf = I->pos = input->pos;
- I->end = (length == PP_LENGTH_UNKNOWN || I->pos + length >= input->end) ? input->end : (I->pos + length);
- }
- else
- {
- I->buf = I->pos = pdf->buffer; // ->buf is actually permanently equal pdf->buffer but we might need some tricks
- if (length == PP_LENGTH_UNKNOWN || length > PPDOC_BUFFER)
- length = PPDOC_BUFFER;
- length = fread(I->buf, 1, length, I->file);
- I->end = I->buf + length;
- }
- return I;
-}
-
-/* The position from the beginning of input
-- for data buffer: (pdf->input.pos - pdf->input.buf) + (I->pos - I->buf)
- I->buf == pdf->input.pos, so this resolves to (I->pos - pdf->input.buf), independent from I->buf
-- for file buffer: ftell(pdf->input.file) - (I->end - I->pos)
-*/
-
-#define ppdoc_reader_tell(pdf, I) ((size_t)(((pdf)->input.flags & IOF_DATA) ? ((I)->pos - (pdf)->input.buf) : (ftell(iof_file_get_fh(&(pdf)->input)) - ((I)->end - (I)->pos))))
-
-/* pdf */
-
-#define PPDOC_HEADER 10 // "%PDF-?.??\n"
-
-static int ppdoc_header (ppdoc *pdf, uint8_t header[PPDOC_HEADER])
-{
- size_t i;
- if (memcmp(header, "%PDF-", 5) != 0)
- return 0;
- for (i = 5; i < PPDOC_HEADER - 1 && !ignored_char(header[i]); ++i)
- pdf->version[i - 5] = header[i];
- pdf->version[i - 5] = '\0';
- return 1;
-}
-
-static int ppdoc_tail (ppdoc *pdf, iof_file *input, size_t *pxrefoffset)
-{
- int c;
- uint8_t tail[4*10], *p, back, tailbytes;
-
- if (iof_file_seek(input, 0, SEEK_END) != 0)
- return 0;
- pdf->filesize = (size_t)iof_file_tell(input);
- // simple heuristic to avoif fgetc() / fseek(-2) hiccup: keep seeking back by len(startxref) + 1 == 10
- // until a letter found (assuming liberal white characters and tail length)
- for (back = 1, tailbytes = 0; ; ++back)
- {
- if (iof_file_seek(input, -10, SEEK_CUR) != 0)
- return 0;
- tailbytes += 10;
- c = iof_file_getc(input);
- tailbytes -= 1;
- switch (c)
- {
- case IGNORED_CHAR_CASE:
- case DIGIT_CHAR_CASE:
- case '%': case 'E': case 'O': case 'F':
- if (back > 4) // 2 should be enough
- return 0;
- continue;
- case 's': case 't': case 'a': case 'r': case 'x': case 'e': case 'f':
- if (iof_file_read(tail, 1, tailbytes, input) != tailbytes)
- return 0;
- tail[tailbytes] = '\0';
- for (p = &tail[0]; ; ++p)
- {
- if (*p == '\0')
- return 0;
- if ((c = base10_value(*p)) >= 0)
- break;
- }
- ppread_uint(p, pxrefoffset);
- return 1;
- default:
- return 0;
- }
- }
- return 0;
-}
-
-/* xref/body */
-
-static int ppscan_start_entry (iof *I, ppref *ref)
-{
- ppuint u;
- ppscan_find(I); if (!ppscan_uint(I, &u) || u != ref->number) return 0;
- ppscan_find(I); if (!ppscan_uint(I, &u) || u != ref->version) return 0;
- ppscan_find(I); if (!ppscan_key(I, "obj")) return 0;
- ppscan_find(I);
- return 1;
-}
-
-static int ppscan_skip_entry (iof *I)
-{
- size_t u;
- ppscan_find(I); if (!ppscan_uint(I, &u)) return 0;
- ppscan_find(I); if (!ppscan_uint(I, &u)) return 0;
- ppscan_find(I); if (!ppscan_key(I, "obj")) return 0;
- ppscan_find(I);
- return 1;
-}
-
-static int ppscan_start_stream (iof *I, ppdoc *pdf, size_t *streamoffset)
-{
- int c;
- ppscan_find(I);
- if (ppscan_key(I, "stream"))
- { // skip 1 or 2 whites (here we shouldn't just gobble all blanks)
- c = iof_char(I);
- if (ignored_char(c))
- {
- c = iof_next(I);
- if (ignored_char(c))
- ++I->pos;
- }
- *streamoffset = ppdoc_reader_tell(pdf, I);
- return 1;
- }
- return 0;
-}
-
-static ppxref * ppxref_load (ppdoc *pdf, size_t xrefoffset);
-static ppxref * ppxref_load_chain (ppdoc *pdf, ppxref *xref);
-
-/* Parsing xref table
-
- 1 10 // first ref number and refs count
- 0000000000 00000 n // 10-digits offset, 5 digits version, type identifier
- 0000000000 00000 n // n states for normal I guess
- 0000000000 00000 f // f states for free (not used)
- ...
-
-Free entries seem to be a relic of ancient times, completelly useless for us. To avoid parsing xref table twice,
-we waste some space on free entries by allocating one plane of refs for each section. Later on we slice sections,
-so that effectively free entries are not involved in map.
-
-Subsequent refs gets number, version and offset. Other fields initialized when parsing PDF body.
-
-Having xref table loaded, we sort sections for future binary search (xref with objects count == 0 is considered invalid).
-
-Then we have to deal with the trailer dict. In general, to load objects and resolve references we need a complete chain
-of xrefs (not only the top). To load the previous xref, we need its offset, which is given in trailer. So we have to
-parse the trailer ignoring references, which might be unresolvable at this point (objects parser makes a dummy check
-for xref != NULL on refs resolving ppscan_obj(), which irritates me but I don't want a separate parser for trailer..).
-The same applies to xref streams, in which we have parse the trailer not having xref map at all. So the procedure is:
-
- - load xref map, initialize references, make it ready to search
- - parse trailer ignoring references
- - get /Prev xref offset and load older xref (linked list via ->prev)
- - sort all refs in all xrefs by offset
- - parse refs in order resolving references in contained objects
- - fix trailer references
-
-First created xref becomes a pdf->xref (top xref). We link that early to control offsets already read (insane loops?).
-*/
-
-// Every xref table item "0000000000 00000 n" is said to be terminated with 2-byte EOL but we don't like relying on whites.
-#define xref_item_length (10+1+5+1+1)
-
-static ppxref * ppxref_load_table (iof *I, ppdoc *pdf, size_t xrefoffset)
-{
- ppxref *xref;
- ppxsec *xrefsection;
- ppref *ref;
- ppuint first, count, refindex;
- uint8_t buffer[xref_item_length + 1];
- const char *p;
- const ppobj *obj;
-
- buffer[xref_item_length] = '\0';
- xref = ppxref_create(pdf, 0, xrefoffset);
- if (pdf->xref == NULL) pdf->xref = xref;
- for (ppscan_find(I); ppscan_uint(I, &first); ppscan_find(I))
- {
- ppscan_find(I);
- if (!ppscan_uint(I, &count))
- return NULL;
- if (count == 0) // weird
- continue;
- xref->count += count;
- xrefsection = NULL;
- ref = (ppref *)ppheap_take(&pdf->heap, count * sizeof(ppref));
- for (refindex = 0; refindex < count; ++refindex, ++ref)
- {
- ref->xref = xref;
- ref->number = first + refindex;
- ppscan_find(I);
- iof_read(I, buffer, xref_item_length);
- switch (buffer[xref_item_length - 1])
- {
- case 'n':
- if (xrefsection == NULL)
- {
- xrefsection = ppxref_push_section(xref, &pdf->heap);
- xrefsection->first = ref->number;
- xrefsection->refs = ref;
- }
- xrefsection->last = ref->number;
- for (p = (const char *)buffer; *p == '0'; ++p);
- p = ppread_uint(p, &ref->offset);
- for ( ; *p == ' ' || *p == '0'; ++p);
- p = ppread_uint(p, &ref->version);
- ref->object.type = PPNONE; // init for sanity
- ref->object.any = NULL;
- ref->length = 0;
- break;
- case 'f':
- default:
- --ref;
- xrefsection = NULL;
- --xref->count;
- }
- }
- }
- /* sort section */
- if (!ppxref_sort(xref))
- ; // case of xref->size == 0 handled by ppxref_load_chain()
- /* get trailer ignoring refs */
- if (!ppscan_key(I, "trailer"))
- return NULL;
- ppscan_find(I);
- if ((obj = ppscan_obj(I, pdf, NULL)) == NULL)
- return NULL;
- ppstack_pop(&pdf->stack, 1);
- if (obj->type != PPDICT)
- return NULL;
- xref->trailer = *obj;
- return ppxref_load_chain(pdf, xref);
-}
-
-/* Parsing xref stream
-First we load the trailer, ignoring references. Dict defines sections and fields lengths:
-
- /Size % max ref number plus 1
- /Index [ first count first count ... ] % a pair of numbers for every section, defaults to [0 Size]
- /W [w1 w2 w3] % fields lengths, 0 states for omitted field
-
-xref stream data is a continuous stream of binary number triplets. First number is a type:
-
- 0 - free entry (as 'f' in xref table)
- 1 - normal entry, followed by offset an version (as 'n' in xref table)
- 2 - compressed entry, followed by parent object stream number and entry index
-
-0 and 1 are handled as 'n' and 'f' entries in xref table. For type 2 we normally initialize
-ref->number and ref->version (the later is implicitly 0). ref->offset is set to 0 (invalid offset),
-which is recognized by objects loader.
-*/
-
-#define XREF_STREAM_MAX_FIELD 4
-
-static ppxref * ppxref_load_stream (iof *I, ppdoc *pdf, size_t xrefoffset)
-{
- ppxref *xref;
- ppxsec *xrefsection;
- ppref *ref;
- ppobj *obj;
- ppstream *xrefstream;
- size_t streamoffset;
- ppuint w1, w2, w3, w, bufferbytes;
- uint8_t buffer[3 * XREF_STREAM_MAX_FIELD], *b;
- ppuint first, count, f1, f2, f3;
- pparray *fieldwidths, *sectionindices;
- ppobj sectionmock[2], *sectionfirst, *sectioncount;
- size_t sections, sectionindex, refindex;
-
- if (!ppscan_skip_entry(I))
- return NULL;
- if ((obj = ppscan_obj(I, pdf, NULL)) == NULL)
- return NULL;
- ppstack_pop(&pdf->stack, 1);
- if (obj->type != PPDICT || !ppscan_start_stream(I, pdf, &streamoffset))
- return NULL;
- xrefstream = ppstream_create(pdf, obj->dict, streamoffset);
- /* All normal streams go through ppstream_info(), but it makes no sense for trailer stream (no crypt allowed, no refs yet).
- So we just record the length and informative flag. Here we have to expect that /Length and /Filter are not indirects. */
- if (!ppdict_get_uint(obj->dict, "Length", &xrefstream->length))
- return NULL;
- if (ppdict_get_obj(obj->dict, "Filter") != NULL)
- xrefstream->flags |= PPSTREAM_COMPRESSED;
- if ((fieldwidths = ppdict_get_array(xrefstream->dict, "W")) != NULL)
- {
- if (!pparray_get_uint(fieldwidths, 0, &w1)) w1 = 0;
- if (!pparray_get_uint(fieldwidths, 1, &w2)) w2 = 0;
- if (!pparray_get_uint(fieldwidths, 2, &w3)) w3 = 0;
- }
- else
- w1 = w2 = w3 = 0;
- if (w1 > XREF_STREAM_MAX_FIELD || w2 > XREF_STREAM_MAX_FIELD || w3 > XREF_STREAM_MAX_FIELD)
- return NULL;
- bufferbytes = w1 + w2 + w3;
- if ((sectionindices = ppdict_get_array(xrefstream->dict, "Index")) != NULL)
- {
- sections = sectionindices->size >> 1;
- sectionfirst = sectionindices->data;
- }
- else
- {
- sections = 1;
- sectionmock[0].type = PPINT;
- sectionmock[0].integer = 0;
- sectionmock[1].type = PPINT;
- if (!ppdict_get_int(xrefstream->dict, "Size", §ionmock[1].integer))
- sectionmock[1].integer = 0;
- sectionfirst = §ionmock[0];
- }
- if ((I = ppstream_read(xrefstream, 1, 0)) == NULL)
- return NULL; // we fseek() so original I is useless anyway
- xref = ppxref_create(pdf, sections, xrefoffset);
- if (pdf->xref == NULL) pdf->xref = xref;
- xref->trailer.type = PPSTREAM;
- xref->trailer.stream = xrefstream;
- for (sectionindex = 0; sectionindex < sections; ++sectionindex, sectionfirst += 2)
- {
- sectioncount = sectionfirst + 1;
- if (!ppobj_get_uint(sectionfirst, first) || !ppobj_get_uint(sectioncount, count))
- goto xref_stream_error;
- if (count == 0)
- continue;
- xref->count += count;
- xrefsection = NULL;
- ref = (ppref *)ppheap_take(&pdf->heap, count * sizeof(ppref));
- for (refindex = 0; refindex < count; ++refindex, ++ref)
- {
- ref->xref = xref;
- ref->number = first + refindex;
- if (iof_read(I, buffer, bufferbytes) != bufferbytes)
- goto xref_stream_error;
- b = buffer;
- if (w1 == 0)
- f1 = 1; // default type is 1
- else
- for (f1 = 0, w = 0; w < w1; f1 = (f1 << 8)|(*b), ++w, ++b);
- for (f2 = 0, w = 0; w < w2; f2 = (f2 << 8)|(*b), ++w, ++b);
- for (f3 = 0, w = 0; w < w3; f3 = (f3 << 8)|(*b), ++w, ++b);
- switch (f1)
- {
- case 0:
- //--ref;
- xrefsection = NULL;
- --xref->count;
- break;
- case 1:
- if (xrefsection == NULL)
- {
- xrefsection = ppxref_push_section(xref, &pdf->heap);
- xrefsection->first = ref->number;
- xrefsection->refs = ref;
- }
- xrefsection->last = ref->number;
- ref->offset = f2;
- ref->version = f3;
- ref->object.type = PPNONE;
- ref->object.any = NULL;
- ref->length = 0;
- break;
- case 2:
- if (xrefsection == NULL)
- {
- xrefsection = ppxref_push_section(xref, &pdf->heap);
- xrefsection->first = ref->number;
- xrefsection->refs = ref;
- }
- xrefsection->last = ref->number;
- ref->offset = 0; // f2 is parent objstm, f3 is index in parent, both useless
- ref->version = 0; // compressed objects has implicit version == 0
- ref->object.type = PPNONE;
- ref->object.any = NULL;
- ref->length = 0;
- break;
- default:
- goto xref_stream_error;
- }
- }
- }
- /* sort sections */
- if (!ppxref_sort(xref))
- ; // case of xref->size == 0 handled by ppxref_load_chain()
- /* close the stream _before_ loading prev xref */
- ppstream_done(xrefstream);
- /* load prev and return */
- return ppxref_load_chain(pdf, xref);
-xref_stream_error:
- ppstream_done(xrefstream);
- return NULL;
-}
-
-/*
-The following procedure loads xref /Prev, links xref->prev and typically returns xref.
-Some docs contain empty xref (one section with zero objects) that is actually a proxy
-to xref stream referred as /XRefStm (genuine concept of xrefs old/new style xrefs in
-the same doc). In case of 0-length xref we ignore the proxy and return the target xref
-(otherwise we would need annoying sanity check for xref->size > 0 on every ref search).
-*/
-
-static ppxref * ppxref_load_chain (ppdoc *pdf, ppxref *xref)
-{
- ppdict *trailer;
- ppuint xrefoffset;
- ppxref *prevxref, *nextxref;
-
- trailer = ppxref_trailer(xref);
- if (!ppdict_get_uint(trailer, "Prev", &xrefoffset)) // XRefStm is useless
- return xref; // missing /Prev is obviously ok
- for (nextxref = pdf->xref; nextxref != NULL; nextxref = nextxref->prev)
- if (nextxref->offset == xrefoffset) // insane
- return NULL;
- if ((prevxref = ppxref_load(pdf, (size_t)xrefoffset)) == NULL)
- return NULL;
- if (xref->size > 0)
- {
- xref->prev = prevxref;
- return xref;
- }
- if (pdf->xref == xref)
- pdf->xref = prevxref;
- return prevxref;
-}
-
-static ppxref * ppxref_load (ppdoc *pdf, size_t xrefoffset)
-{
- iof *I;
- if ((I = ppdoc_reader(pdf, xrefoffset, PP_LENGTH_UNKNOWN)) == NULL)
- return NULL;
- ppscan_find(I);
- if (ppscan_key(I, "xref"))
- return ppxref_load_table(I, pdf, xrefoffset);
- return ppxref_load_stream(I, pdf, xrefoffset);
- // iof_close(I) does nothing here
-}
-
-static void ppoffmap_sort (ppref **left, ppref **right)
-{
- ppref **l, **r, *t;
- ppuint pivot;
- l = left, r = right;
- pivot = (*(l + ((r - l) / 2)))->offset;
- do
- { // don't read from pointer!
- while ((*l)->offset < pivot) ++l;
- while ((*r)->offset > pivot) --r;
- if (l <= r)
- {
- t = *l;
- *l = *r;
- *r = t;
- ++l, --r;
- }
- } while (l <= r);
- if (left < r)
- ppoffmap_sort(left, r);
- if (l < right)
- ppoffmap_sort(l, right);
-}
-
-
-static void fix_trailer_references (ppdoc *pdf)
-{
- ppxref *xref;
- ppdict *trailer;
- ppname *pkey;
- ppobj *obj;
- ppref *ref;
- for (xref = pdf->xref; xref != NULL; xref = xref->prev)
- {
- if ((trailer = ppxref_trailer(xref)) == NULL)
- continue;
- for (ppdict_first(trailer, pkey, obj); *pkey != NULL; ppdict_next(pkey, obj))
- { // no need to go deeper in structs, all items in trailer except info and root must be direct refs
- if (obj->type != PPREF)
- continue;
- ref = obj->ref;
- if (ref->offset == 0) // unresolved?
- if ((ref = ppxref_find(xref, ref->number)) != NULL)
- obj->ref = ref; // at this moment the reference still points nothing, but should be the one with the proper offset
- }
- }
-}
-
-/*
-Here comes a procedure that loads all entries from all document bodies. We resolve references while
-parsing objects and to make resolving correct, we need a complete chain of xref maps, and a knowledge
-about possible linearized dict (first offset). So loading refs sorted by offsets makes sense (not sure
-if it matters nowadays but we also avoid fseek() by large offsets).
-
-Here is the proc:
-
- - create a list of all refs in all bodies
- - sort the list by offsets
- - for every ref from the sorted list:
- - estimate object length to avoid fread-ing more than necessary (not perfect but enough)
- - fseek() to the proper offset, fread() entry data or its part
- - parse the object with ppscan_obj(I, pdf, xref), where xref is not necessarily top pdf->xref
- - save the actual ref->length (not sure if we need that?)
- - make a stream if a dict is followed by "stream" keyword, also save the stream offset
- - free the list
-*/
-
-static int ppdoc_load_objstm (ppstream *stream, ppdoc *pdf, ppxref *xref);
-
-static void ppdoc_load_entries (ppdoc *pdf)
-{
- size_t objects, sectionindex, refnumber, offindex;
- ppnum linearized;
- ppref **offmap, **pref, *ref;
- ppxref *xref;
- ppxsec *xsec;
- ppobj *obj;
- ppname type;
- int redundant_indirection = 0;
- ppcrypt *crypt;
- ppstream *stream;
-
- if ((objects = (size_t)ppdoc_objects(pdf)) == 0) // can't happen
- return;
- pref = offmap = (ppref **)pp_malloc(objects * sizeof(ppref *));
- objects = 0; // recount refs with offset > 0
- for (xref = pdf->xref; xref != NULL; xref = xref->prev)
- for (sectionindex = 0, xsec = xref->sects; sectionindex < xref->size; ++sectionindex, ++xsec)
- for (refnumber = xsec->first, ref = xsec->refs; refnumber <= xsec->last; ++refnumber, ++ref)
- if (ref->offset > 0) // 0 means compressed or insane
- *pref++ = ref, ++objects;
- ppoffmap_sort(offmap, offmap + objects - 1);
-
- crypt = pdf->crypt;
- for (offindex = 0, pref = offmap; offindex < objects; )
- {
- ref = *pref;
- ++pref;
- ++offindex;
- if (ref->object.type != PPNONE) // might be preloaded already (/Encrypt dict, stream filter dicts, stream /Length..)
- continue;
- if (offindex < objects)
- ref->length = (*pref)->offset - ref->offset;
- else
- ref->length = pdf->filesize > ref->offset ? pdf->filesize - ref->offset : 0;
- if (crypt != NULL)
- {
- ppcrypt_start_ref(crypt, ref);
- obj = ppdoc_load_entry(pdf, ref);
- ppcrypt_end_ref(crypt);
- }
- else
- {
- obj = ppdoc_load_entry(pdf, ref);
- }
- switch (obj->type)
- {
- case PPDICT: /* Check if the object at first offset is linearized dict. We need that to resolve all references properly. */
- if (offindex == 1 && ppdict_get_num(obj->dict, "Linearized", &linearized)) // /Linearized value is a version number, default 1.0
- pdf->flags |= PPDOC_LINEARIZED;
- break;
- case PPREF:
- redundant_indirection = 1;
- break;
- default:
- break;
- }
- // if pdf->crypt crypt->ref = NULL
- }
-
- /* refs pointngs refs? cut. */
- if (redundant_indirection)
- {
- for (offindex = 0, pref = offmap; offindex < objects; ++offindex)
- {
- ref = *pref++;
- if (ref->object.type == PPREF)
- ref->object = ref->object.ref->object; // doing for all effectively cuts all insane chains
- }
- }
-
- /* now handle streams; update stream info (eg. /Length), load pdf 1.5 object streams
- we could do earlier but then we would need to struggle with indirects */
- for (offindex = 0, pref = offmap; offindex < objects; ++offindex)
- {
- ref = *pref++;
- obj = &ref->object;
- if (obj->type != PPSTREAM)
- continue;
- stream = obj->stream;
- if (crypt != NULL)
- {
- ppcrypt_start_ref(crypt, ref);
- ppstream_info(stream, pdf);
- ppcrypt_end_ref(crypt);
- }
- else
- {
- ppstream_info(stream, pdf);
- }
- if (ref->xref->trailer.type == PPSTREAM && (type = ppdict_get_name(stream->dict, "Type")) != NULL && ppname_is(type, "ObjStm")) // somewhat dummy..
- if (!ppdoc_load_objstm(stream, pdf, ref->xref))
- loggerf("invalid objects stream %s at offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset);
- }
- pp_free(offmap);
-}
-
-ppobj * ppdoc_load_entry (ppdoc *pdf, ppref *ref)
-{
- iof *I;
- size_t length;
- ppxref *xref;
- ppobj *obj;
- ppstack *stack;
- size_t streamoffset;
- ppref *refref;
- ppuint refnumber, refversion;
-
- length = ref->length > 0 ? ref->length : PP_LENGTH_UNKNOWN; // estimated or unknown
- if ((I = ppdoc_reader(pdf, ref->offset, length)) == NULL || !ppscan_start_entry(I, ref))
- {
- loggerf("invalid %s offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset);
- return &ref->object; // PPNONE
- }
- stack = &pdf->stack;
- xref = ref->xref; // to resolve indirects properly
- if ((obj = ppscan_obj(I, pdf, xref)) == NULL)
- {
- loggerf("invalid %s object at offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset);
- return &ref->object; // PPNONE
- }
- ref->object = *obj;
- ppstack_pop(stack, 1);
- obj = &ref->object;
- ref->length = ppdoc_reader_tell(pdf, I) - ref->offset;
- if (obj->type == PPDICT)
- {
- if (ppscan_start_stream(I, pdf, &streamoffset))
- {
- obj->type = PPSTREAM;
- obj->stream = ppstream_create(pdf, obj->dict, streamoffset);
- }
- }
- else if (obj->type == PPINT)
- {
- ppscan_find(I);
- if (ppscan_uint(I, &refversion) && ppscan_find(I) == 'R')
- {
- refnumber = (ppuint)obj->integer;
- if ((refref = ppxref_find(xref, refnumber)) != NULL)
- {
- obj->type = PPREF;
- obj->ref = refref;
- }
- else
- {
- obj->type = PPNONE; // as ppref_unresolved()
- obj->any = NULL;
- }
- }
- }
- return obj;
-}
-
-/* Loading entries from object stream
-
- /N is the number of contained entries
- /First is the offset of the first item
-
-The stream consists of N pairs of numbers <objnum> <offset> <objnum> <offset> ...
-Offsets are ascending (relative to the first), but ref numbers order is arbitrary.
-PDF spec says there might be some additional data between objects, so we should obey offsets.
-Which means we should basically load the stream at once (may be needed anyway to grab the stream [...]).
-*/
-
-static int ppdoc_load_objstm (ppstream *stream, ppdoc *pdf, ppxref *xref)
-{
- ppdict *dict; // stream dict, actually still on stack
- ppref *ref;
- ppobj *obj;
- ppuint items, firstoffset, offset, objnum, i, invalid = 0;
- iof *I;
- uint8_t *firstdata, *indexdata;
- ppstack *stack;
-
- dict = stream->dict;
- if (!ppdict_rget_uint(dict, "N", &items) || !ppdict_rget_uint(dict, "First", &firstoffset))
- return 0;
- if ((I = ppstream_read(stream, 1, 1)) == NULL)
- return 0;
- firstdata = I->pos + firstoffset;
- if (firstdata >= I->end)
- goto invalid_objstm;
- stack = &pdf->stack;
- //if (pdf->crypt != NULL)
- // ppcrypt_end_ref(pdf->crypt); // objects are not encrypted, pdf->crypt->ref ensured NULL
- for (i = 0; i < items; ++i)
- {
- ppscan_find(I);
- if (!ppscan_uint(I, &objnum))
- goto invalid_objstm;
- ppscan_find(I);
- if (!ppscan_uint(I, &offset))
- goto invalid_objstm;
- if ((ref = ppxref_find_local(xref, objnum)) == NULL || ref->object.type != PPNONE)
- {
- loggerf("invalid compressed object number " PPUINTF " at position " PPUINTF, objnum, i);
- ++invalid;
- continue;
- }
- if (firstdata + offset >= I->end)
- {
- loggerf("invalid compressed object offset " PPUINTF " at position " PPUINTF, offset, i);
- ++invalid;
- continue;
- }
- indexdata = I->pos; // save position
- I->pos = firstdata + offset; // go to the object
- ppscan_find(I);
- if ((obj = ppscan_obj(I, pdf, xref)) != NULL)
- {
- ref->object = *obj;
- ppstack_pop(stack, 1);
- // nothing more needed, as obj can never be indirect ref or stream
- }
- else
- {
- ++invalid;
- loggerf("invalid compressed object %s at stream offset " PPUINTF, ppref_str(objnum, 0), offset);
- }
- I->pos = indexdata; // restore position and read next from index
- }
- ppstream_done(stream);
- return invalid == 0;
-invalid_objstm:
- ppstream_done(stream);
- return 0;
-}
-
-/* main PDF loader proc */
-
-ppcrypt_status ppdoc_crypt_pass (ppdoc *pdf, const void *userpass, size_t userpasslength, const void *ownerpass, size_t ownerpasslength)
-{
- switch (pdf->cryptstatus)
- {
- case PPCRYPT_NONE:
- case PPCRYPT_DONE:
- case PPCRYPT_FAIL:
- break;
- case PPCRYPT_PASS: // initial status or really needs password
- pdf->cryptstatus = ppdoc_crypt_init(pdf, userpass, userpasslength, ownerpass, ownerpasslength);
- switch (pdf->cryptstatus)
- {
- case PPCRYPT_NONE:
- case PPCRYPT_DONE:
- ppdoc_load_entries(pdf);
- break;
- case PPCRYPT_PASS: // user needs to check ppdoc_crypt_status() and recall ppdoc_crypt_pass() with the proper password
- case PPCRYPT_FAIL: // hopeless..
- break;
- }
- break;
- }
- return pdf->cryptstatus;
-}
-
-static ppdoc * ppdoc_read (ppdoc *pdf, iof_file *input)
-{
- uint8_t header[PPDOC_HEADER];
- size_t xrefoffset;
-
- input = &pdf->input;
- if (iof_file_read(header, 1, PPDOC_HEADER, input) != PPDOC_HEADER || !ppdoc_header(pdf, header))
- return NULL;
- if (!ppdoc_tail(pdf, input, &xrefoffset))
- return NULL;
- if (ppxref_load(pdf, xrefoffset) == NULL)
- return NULL;
- fix_trailer_references(pdf); // after loading xrefs but before accessing trailer refs (/Encrypt might be a reference)
- // check encryption, if any, try empty password
- switch (ppdoc_crypt_pass(pdf, "", 0, NULL, 0))
- {
- case PPCRYPT_NONE: // no encryption
- case PPCRYPT_DONE: // encryption with an empty password
- case PPCRYPT_PASS: // the user needs to check ppdoc_crypt_status() and call ppdoc_crypt_pass()
- break;
- case PPCRYPT_FAIL: // hopeless
- //loggerf("decryption failed");
- //return NULL;
- break;
- }
- return pdf;
-}
-
-static void ppdoc_pages_init (ppdoc *pdf);
-
-static ppdoc * ppdoc_create (iof_file *input)
-{
- ppdoc *pdf;
- ppheap *heap;
-
- heap = ppheap_new();
- pdf = (ppdoc *)ppheap_take(&heap, sizeof(ppdoc));
- pdf->flags = 0;
- pdf->heap = heap;
- pdf->xref = NULL;
- pdf->version[0] = '\0';
- pdf->crypt = NULL;
- pdf->cryptstatus = PPCRYPT_PASS; // force encryption check on ppdoc_read() -> ppdoc_crypt_pass()
- ppstack_init(&pdf->stack, &pdf->heap);
- ppdoc_reader_init(pdf, input);
- ppdoc_pages_init(pdf);
- if (ppdoc_read(pdf, &pdf->input) != NULL)
- return pdf;
- ppdoc_free(pdf);
- return NULL;
-}
-
-ppdoc * ppdoc_load (const char *filename)
-{
- FILE *file;
- iof_file input;
- if ((file = fopen(filename, "rb")) == NULL)
- return NULL;
- iof_file_init(&input, file);
- input.flags |= IOF_CLOSE_FILE;
- return ppdoc_create(&input);
-}
-
-ppdoc * ppdoc_mem (const void *data, size_t size)
-{
- iof_file input;
- iof_file_rdata_init(&input, data, size);
- input.flags |= IOF_BUFFER_ALLOC; // todo: 3 modes: borrow, take over, copy?
- return ppdoc_create(&input);
-}
-
-void ppdoc_free (ppdoc *pdf)
-{
- //iof_file_free(&pdf->input);
- iof_file_decref(&pdf->input);
- ppstack_free_buffer(&pdf->stack);
- ppheap_free(pdf->heap); // last!
-}
-
-ppcrypt_status ppdoc_crypt_status (ppdoc *pdf)
-{
- return pdf->cryptstatus;
-}
-
-ppint ppdoc_permissions (ppdoc *pdf)
-{
- return pdf->crypt != NULL ? pdf->crypt->permissions : (ppint)0xFFFFFFFFFFFFFFFF;
-}
-
-/* pages access */
-
-static pparray * pppage_node (ppdict *dict, ppuint *count, ppname *type)
-{
- ppname *pkey, key;
- ppobj *obj;
- pparray *kids = NULL;
- *count = 0;
- *type = NULL;
- for (ppdict_first(dict, pkey, obj); (key = *pkey) != NULL; ppdict_next(pkey, obj))
- {
- switch (key[0])
- {
- case 'T':
- if (ppname_is(key, "Type"))
- *type = ppobj_get_name(obj);
- break;
- case 'C':
- if (ppname_is(key, "Count"))
- ppobj_get_uint(obj, *count);
- break;
- case 'K':
- if (ppname_is(key, "Kids"))
- kids = ppobj_rget_array(obj);
- break;
- }
- }
- return kids;
-}
-
-#define ppname_is_page(type) (type != NULL && ppname_is(type, "Page"))
-
-ppuint ppdoc_page_count (ppdoc *pdf)
-{
- ppref *ref;
- ppname type;
- ppuint count;
- if ((ref = ppxref_pages(pdf->xref)) == NULL)
- return 0;
- if (pppage_node(ref->object.dict, &count, &type) == NULL)
- return ppname_is_page(type) ? 1 : 0; // acrobat and ghostscript accept documents with root /Pages entry being a reference to a sole /Page object
- return count;
-}
-
-ppref * ppdoc_page (ppdoc *pdf, ppuint index)
-{
- ppdict *dict;
- ppuint count;
- pparray *kids;
- size_t size, i;
- ppobj *r, *o;
- ppref *ref;
- ppname type;
-
-
- if ((ref = ppxref_pages(pdf->xref)) == NULL)
- return NULL;
- dict = ref->object.dict;
- if ((kids = pppage_node(dict, &count, &type)) != NULL)
- {
- if (index < 1 || index > count)
- return NULL;
- }
- else
- {
- return index == 1 && ppname_is_page(type) ? ref : NULL;
- }
-scan_array:
- if (index <= count / 2)
- { // probably shorter way from the beginning
- for (i = 0, size = kids->size, r = pparray_at(kids, 0); i < size; ++i, ++r)
- {
- if (r->type != PPREF)
- return NULL;
- o = &r->ref->object;
- if (o->type != PPDICT)
- return NULL;
- dict = o->dict;
- if ((kids = pppage_node(dict, &count, &type)) != NULL)
- {
- if (index <= count)
- goto scan_array;
- index -= count;
- continue;
- }
- if (index == 1 && ppname_is_page(type))
- return r->ref;
- --index;
- }
- }
- else if ((size = kids->size) > 0) // for safe (size-1)
- { // probably shorter way from the end
- index = count - index + 1;
- for (i = 0, r = pparray_at(kids, size - 1); i < size; ++i, --r)
- {
- if (r->type != PPREF)
- return NULL;
- o = &r->ref->object;
- if (o->type != PPDICT)
- return NULL;
- dict = o->dict;
- if ((kids = pppage_node(dict, &count, &type)) != NULL)
- {
- if (index <= count)
- goto scan_array;
- index -= count;
- continue;
- }
- if (index == 1 && ppname_is_page(type))
- return r->ref;
- --index;
- }
- }
- return NULL;
-}
-
-/*
-Through pages iterator. Iterating over pages tree just on the base of /Kids and /Parent keys
-is ineffective, as to get next pageref we need to take parent, find the pageref in /Kids,
-take next (or go upper).. Annoying. We use a dedicated stack for pages iterator. This could
-actually be done with pdf->stack, but some operations may clear it, so safer to keep it independent
-Besides, its depth is constant (set on first use), so no need for allocs.
-*/
-
-static void ppdoc_pages_init (ppdoc *pdf)
-{
- pppages *pages;
- pages = &pdf->pages;
- pages->root = pages->parent = pages->buffer;
- pages->depth = 0;
- pages->space = PPPAGES_STACK_DEPTH;
-}
-
-static ppkids * pppages_push (ppdoc *pdf, pparray *kids)
-{
- ppkids *newroot, *bounds;
- pppages *pages;
- pages = &pdf->pages;
- if (pages->depth == pages->space)
- {
- pages->space <<= 1;
- newroot = (ppkids *)ppheap_take(&pdf->heap, pages->space * sizeof(ppkids));
- memcpy(newroot, pages->root, pages->depth * sizeof(ppkids));
- pages->root = newroot;
- }
- bounds = pages->parent = &pages->root[pages->depth++];
- bounds->current = pparray_at(kids, 0);
- bounds->sentinel = pparray_at(kids, kids->size);
- return bounds;
-}
-
-#define pppages_pop(pages) (--((pages)->parent), --((pages)->depth))
-
-static ppref * ppdoc_pages_group_first (ppdoc *pdf, ppref *ref)
-{
- ppdict *dict;
- pparray *kids;
- ppuint count;
- ppname type;
-
- dict = ref->object.dict; // typecheck made by callers
- while ((kids = pppage_node(dict, &count, &type)) != NULL)
- {
- if ((ref = pparray_get_ref(kids, 0)) == NULL || ref->object.type != PPDICT)
- return NULL;
- pppages_push(pdf, kids);
- dict = ref->object.dict;
- }
- return ppname_is_page(type) ? ref : NULL;
-}
-
-ppref * ppdoc_first_page (ppdoc *pdf)
-{
- ppref *ref;
- pppages *pages;
- if ((ref = ppdoc_pages(pdf)) == NULL)
- return NULL;
- pages = &pdf->pages;
- pages->parent = pages->root;
- pages->depth = 0;
- return ppdoc_pages_group_first(pdf, ref);
-}
-
-ppref * ppdoc_next_page (ppdoc *pdf)
-{
- pppages *pages;
- ppkids *bounds;
- ppref *ref;
- ppobj *obj;
- pages = &pdf->pages;
- while (pages->depth > 0)
- {
- bounds = pages->parent;
- obj = ++bounds->current;
- if (obj < bounds->sentinel)
- {
- if (obj->type != PPREF)
- return NULL;
- ref = obj->ref;
- if (ref->object.type != PPDICT)
- return NULL;
- return ppdoc_pages_group_first(pdf, ref);
- }
- else
- { // no next node, go upper
- pppages_pop(pages);
- }
- }
- return NULL;
-}
-
-/* context */
-
-ppcontext * ppcontext_new (void)
-{
- ppheap *heap;
- ppcontext *context;
- heap = ppheap_new();
- context = (ppcontext *)pp_malloc(sizeof(ppcontext)); // not from priv heap, as we delete it on renew
- context->heap = heap;
- ppstack_init(&context->stack, &context->heap);
- return context;
-}
-
-void ppcontext_done (ppcontext *context)
-{
- ppheap_renew(context->heap);
- ppstack_clear(&context->stack);
-}
-
-void ppcontext_free (ppcontext *context)
-{
- ppstack_free_buffer(&context->stack);
- ppheap_free(context->heap);
- pp_free(context);
-}
-
-/* page contents streams */
-
-//#define ppcontents_first_stream(array) pparray_rget_stream(array, 0)
-
-static ppstream * ppcontents_first_stream (pparray *array)
-{
- size_t i;
- ppobj *obj;
- ppref *ref;
- for (pparray_first(array, i, obj); i < array->size; pparray_next(i, obj))
- if ((ref = ppobj_get_ref(obj)) != NULL && ref->object.type == PPSTREAM)
- return ref->object.stream;
- return NULL;
-}
-
-static ppstream * ppcontents_next_stream (pparray *array, ppstream *stream)
-{
- size_t i;
- ppobj *obj;
- ppref *ref;
- for (pparray_first(array, i, obj); i < array->size; pparray_next(i, obj))
- if ((ref = ppobj_get_ref(obj)) != NULL && ref->object.type == PPSTREAM && ref->object.stream == stream)
- if (++i < array->size && (ref = ppobj_get_ref(obj + 1)) != NULL && ref->object.type == PPSTREAM)
- return ref->object.stream;
- return NULL;
-}
-
-ppstream * ppcontents_first (ppdict *dict)
-{
- ppobj *contentsobj;
- if ((contentsobj = ppdict_rget_obj(dict, "Contents")) == NULL)
- return NULL;
- switch (contentsobj->type)
- {
- case PPARRAY:
- return ppcontents_first_stream(contentsobj->array);
- case PPSTREAM:
- return contentsobj->stream;
- default:
- break;
- }
- return NULL;
-}
-
-ppstream * ppcontents_next (ppdict *dict, ppstream *stream)
-{
- ppobj *contentsobj;
- if ((contentsobj = ppdict_rget_obj(dict, "Contents")) == NULL)
- return NULL;
- switch (contentsobj->type)
- {
- case PPARRAY:
- return ppcontents_next_stream(contentsobj->array, stream);
- case PPSTREAM:
- break;
- default:
- break;
- }
- return NULL;
-}
-
-static ppobj * ppcontents_op (iof *I, ppstack *stack, size_t *psize, ppname *pname)
-{
- ppobj *obj;
- ppstack_clear(stack);
- do {
- if (ppscan_find(I) < 0)
- return NULL;
- if ((obj = ppscan_psobj(I, stack)) == NULL)
- return NULL;
- } while (obj->type != PPNAME || !ppname_exec(obj->name));
- *pname = obj->name;
- *psize = stack->size - 1;
- return stack->buf;
-}
-
-ppobj * ppcontents_first_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname)
-{
- iof *I;
- if ((I = ppstream_read(stream, 1, 0)) == NULL)
- return NULL;
- return ppcontents_op(I, &context->stack, psize, pname);
-}
-
-ppobj * ppcontents_next_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname)
-{
- return ppcontents_op(ppstream_iof(stream), &context->stack, psize, pname);
-}
-
-ppobj * ppcontents_parse (ppcontext *context, ppstream *stream, size_t *psize)
-{
- iof *I;
- ppstack *stack;
- ppobj *obj;
- stack = &context->stack;
- ppstack_clear(stack);
- if ((I = ppstream_read(stream, 1, 0)) == NULL)
- return NULL;
- while (ppscan_find(I) >= 0)
- if ((obj = ppscan_psobj(I, stack)) == NULL)
- goto error;
- *psize = stack->size;
- ppstream_done(stream);
- return stack->buf;
-error:
- ppstream_done(stream);
- return NULL;
-}
-
-/* boxes */
-
-pprect * pparray_to_rect (pparray *array, pprect *rect)
-{
- ppobj *obj;
- if (array->size != 4)
- return NULL;
- obj = pparray_at(array, 0);
- if (!ppobj_get_num(obj, rect->lx)) return NULL;
- obj = pparray_at(array, 1);
- if (!ppobj_get_num(obj, rect->ly)) return NULL;
- obj = pparray_at(array, 2);
- if (!ppobj_get_num(obj, rect->rx)) return NULL;
- obj = pparray_at(array, 3);
- if (!ppobj_get_num(obj, rect->ry)) return NULL;
- return rect;
-}
-
-pprect * ppdict_get_rect (ppdict *dict, const char *name, pprect *rect)
-{
- pparray *array;
- return (array = ppdict_rget_array(dict, name)) != NULL ? pparray_to_rect(array, rect) : NULL;
-}
-
-pprect * ppdict_get_box (ppdict *dict, const char *name, pprect *rect)
-{
- do {
- if (ppdict_get_rect(dict, name, rect) != NULL)
- return rect;
- dict = ppdict_rget_dict(dict, "Parent");
- } while (dict != NULL);
- return NULL;
-}
-
-ppmatrix * pparray_to_matrix (pparray *array, ppmatrix *matrix)
-{
- ppobj *obj;
- if (array->size != 6)
- return NULL;
- obj = pparray_at(array, 0);
- if (!ppobj_get_num(obj, matrix->xx)) return NULL;
- obj = pparray_at(array, 1);
- if (!ppobj_get_num(obj, matrix->xy)) return NULL;
- obj = pparray_at(array, 2);
- if (!ppobj_get_num(obj, matrix->yx)) return NULL;
- obj = pparray_at(array, 3);
- if (!ppobj_get_num(obj, matrix->yy)) return NULL;
- obj = pparray_at(array, 4);
- if (!ppobj_get_num(obj, matrix->x)) return NULL;
- obj = pparray_at(array, 5);
- if (!ppobj_get_num(obj, matrix->y)) return NULL;
- return matrix;
-}
-
-ppmatrix * ppdict_get_matrix (ppdict *dict, const char *name, ppmatrix *matrix)
-{
- pparray *array;
- return (array = ppdict_rget_array(dict, name)) != NULL ? pparray_to_matrix(array, matrix) : NULL;
-}
-
-/* logger */
-
-void pplog_callback (pplogger_callback logger, void *alien)
-{
- logger_callback((logger_function)logger, alien);
-}
-
-int pplog_prefix (const char *prefix)
-{
- return logger_prefix(prefix);
-}
-
-/* version */
-
-const char * ppdoc_version_string (ppdoc *pdf)
-{
- return pdf->version;
-}
-
-int ppdoc_version_number (ppdoc *pdf, int *minor)
-{
- *minor = pdf->version[2] - '0';
- return pdf->version[0] - '0';
-}
-
-/* doc info */
-
-size_t ppdoc_file_size (ppdoc *pdf)
-{
- return pdf->filesize;
-}
-
-ppuint ppdoc_objects (ppdoc *pdf)
-{
- ppuint count;
- ppxref *xref;
- for (count = 0, xref = pdf->xref; xref != NULL; xref = xref->prev)
- count += xref->count;
- return count;
-}
-
-size_t ppdoc_memory (ppdoc *pdf, size_t *waste)
-{
- size_t used;
- ppheap *heap;
- used = 0, *waste = 0;
- for (heap = pdf->heap; heap != NULL; heap = heap->prev)
- {
- used += heap->space;
- *waste += heap->size;
- }
- return used;
-}
Deleted: trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c-OK
===================================================================
--- trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c-OK 2018-09-05 21:32:42 UTC (rev 48592)
+++ trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c-OK 2018-09-05 21:35:27 UTC (rev 48593)
@@ -1,767 +0,0 @@
-/* predictor filters; common for flate and lzw */
-
-#include "utilmem.h"
-#include "utillog.h"
-#include "utilfpred.h"
-
-/*
-Here we implement predictor filters used with flate and lzw compressions in PDF streams. The main idea of data prediction
-is to compute and output the differences between data records instead of this records. Adjacent pixels in images are usually
-similar, so differences between pixel values tends to be zero. And both Flate and LZW performs better when the input
-is rather smooth. Although a preliminary use of predictors is related to bitmap data, The actual need for predictor filter
-came from the fact that xref streams may also be predicted (usually with PNG up-predictor).
-
-PDF specification allows to use several predictor algorithms, specified by /Predictor key in /DecodeParms dictionary:
-
- 1 - no predictor (default)
- 2 - TIFF horizontal predictor
- 10 - PNG none predictor
- 11 - PNG sub predictor
- 12 - PNG up predictor
- 13 - PNG average predictor
- 14 - PNG paeth predictor
-
-All PNG predictors works on bytes, regardless the image color-depth. While encoding, every input data byte is decreased
-by the appropriate byte of the previous pixel. Even if the pixel does not fit a full byte, PNG predictors use an artificial
-pixel size rounded up to a full byte. PNG predictors utilizes previous (left) pixel, pixel above and previous to above
-pixel. In case of PNG, the type of the predictor is written on a dedicated byte on the beginning of every scanline. It
-means all predictor functions must maintain and information about left, above and left-above pixels.
-
-Despite the same differencing idea, TIFF predictors are different. The prediction process bases on pixel components,
-which are not necessarily bytes (component of a pixel is added/substracted from a relevant component of a previous
-pixel). In TIFF predictor 2, only the previous (the left) pixel is taken into account, there is no need to keep
-an information about other surrounding pixels. Also there is no expicit algorithm marker in data; the same prediction
-method is applied to all input rows.
-
-Not surprisingly, predictor encoders and decoders are pretty similar. Encoders take some input value and the previous
-input value (or 0 at the beginning of the scanline) and output a difference between them. Decoders takes an input value,
-previously decoded value (or zero) and outputs their sum. When encoding, the result is cast to the proper unsigned integer,
-when decoding, modulo 256 (or appropriate) is used, which makes encoding and decoding looseless.
-
-Some extra bits trickery is involved in TIFF predictor function, when components doesn't fit bytes boundary. In that case,
-an input is treated as an bits stream. Every input byte is "buffered" in a larger integer, as its lower bits (from right).
-Every output value is taken from its higher (left) bits. In a special case of bits-per-component equal 1, we buffer all
-pixel bits and use XOR to compute bits difference between pixels. I've excerpted that trick from poppler, but I'm not
-really sure if it works any better, especially when the number of components per pixel is 1. In that case we do a hard
-bit-by-bit work anyway.
-
-Predictor codecs state keeps a notion of surrounding pixels. PNG predictors uses left, up and upleft
-pixel data, while TIFF predictor (2) only needs the previous (left) pixel. Important to note that PNG
-predictors always work on bytes, no matter of color-depth (bits per component), while TIFF predictor
-works on pixel components, which not necessarily fits into a complete byte. However, for PNG predictor
-the size of a pixel still matters, because 'left' and 'upleft' refers to a corresponding pixel byte,
-not necessarily previous byte.
-
-In PNG prediction, we record every pixel byte (in decoded form) in state->rowsave. At the end of a scanline
-we copy state->rowsave to state->rowup, so that in the next scanline we can access up-pixel byte.
-Left pixel byte is accessed as state->rowsave (the byte recently stored or virtual left edge byte \0).
-Up-left pixel byte is accessed via state->rowup, but with state->pixelsize offset (same as left byte, possibly \0
-at the left edge of the row). Both state->rowup and state->rowsave has a safe span of pixelsize bytes on the left,
-that are permanently \0.
-*/
-
-#define predictor_component_t unsigned short
-#define predictor_pixel1b_t unsigned int
-
-typedef struct predictor_state {
- int default_predictor; /* default predictor indicator */
- int current_predictor; /* current predictor, possibly taken from algorithm marker in PNG data */
- int rowsamples; /* number of pixels in a scanline (/DecodeParms << /Columns ... >>) */
- int compbits; /* number of bits per component (/DecodeParms << /BitsPerComponent ... >>) */
- int components; /* number of components (/DecodeParms << /Colors ... >>) */
- uint8_t *buffer; /* temporary private buffer area */
- uint8_t *rowin; /* an input row buffer position */
- int rowsize; /* size of a current scanline in bytes (rounded up) */
- int rowend; /* an input buffer end position */
- int rowindex; /* an output buffer position */
- union {
- struct { /* used by PNG predictor codecs */
- uint8_t *rowup, *rowsave; /* previous scanline buffers */
- int predictorbyte; /* flag indicating that algorithm byte is read/written */
- int pixelsize; /* number of bytes per pixel (rounded up) */
- };
- struct { /* used by TIFF predictor codecs */
- union {
- predictor_component_t *prevcomp; /* an array of left pixel components */
- predictor_pixel1b_t *prevpixel; /* left pixel value stored on a single integer (for 1bit color-depth) */
- };
- int compin, compout; /* bit stream buffers */
- int bitsin, bitsout; /* bit stream counters */
- int sampleindex; /* pixel counter */
- int compindex; /* component counter */
- int pixbufsize; /* size of pixel buffer in bytes */
- };
- };
- int flush;
- int status;
-} predictor_state;
-
-enum {
- STATUS_LAST = 0,
- STATUS_CONTINUE = 1 // any value different then IOFEOF, IOFERR, ...
-};
-
-predictor_state * predictor_decoder_init (predictor_state *state, int predictor, int rowsamples, int components, int compbits)
-{
- int rowsize, pixelsize;
-#define storage_pos(b, p, size) ((b = p), (p += size))
- uint8_t *buffer, *p;
- size_t buffersize;
-
- pixelsize = (components * compbits + 7) >> 3; // to bytes, rounded up
- rowsize = (rowsamples * components * compbits + 7) >> 3;
-
- state->default_predictor = state->current_predictor = predictor;
- state->rowsamples = rowsamples;
- state->components = components;
- state->compbits = compbits;
-
- if (predictor == 2)
- { /* tiff predictor */
- size_t compbuf, pixbuf;
- compbuf = state->components * sizeof(predictor_component_t);
- pixbuf = 1 * sizeof(predictor_pixel1b_t);
- state->pixbufsize = (int)(compbuf > pixbuf ? compbuf : pixbuf);
- buffersize = rowsize + state->pixbufsize;
- buffer = (uint8_t *)util_calloc(buffersize, 1);
- state->prevcomp = (predictor_component_t *)(state->rowin + rowsize);
- state->sampleindex = state->compindex = 0;
- state->bitsin = state->bitsout = 0;
- state->compin = state->compout = 0;
- }
- else
- { /* png predictors */
- buffersize = (3 * rowsize + 2 * pixelsize + 1) * sizeof(uint8_t);
- p = buffer = (uint8_t *)util_calloc(buffersize, 1);
- storage_pos(state->rowin, p, 1 + rowsize); // one extra byte for prediction algorithm tag
- p += pixelsize; // pixelsize extra bytes for virtual left pixel at the edge, eg. rowup[-1] (permanently \0)
- storage_pos(state->rowup, p, rowsize); // actual row byte
- p += pixelsize; // ditto
- storage_pos(state->rowsave, p, rowsize);
- state->pixelsize = pixelsize;
- state->predictorbyte = 0;
- }
- state->buffer = buffer;
- state->rowsize = rowsize;
- state->rowindex = 0;
- state->rowend = 0;
- state->status = STATUS_CONTINUE;
- return state;
-}
-
-predictor_state * predictor_encoder_init (predictor_state *state, int predictor, int rowsamples, int components, int compbits)
-{
- return predictor_decoder_init(state, predictor, rowsamples, components, compbits);
-}
-
-void predictor_decoder_close (predictor_state *state)
-{
- util_free(state->buffer);
-}
-
-void predictor_encoder_close (predictor_state *state)
-{
- util_free(state->buffer);
-}
-
-/*
-Predictor type identifiers (pdf spec 76). lpdf doesn't hire the codec if predictor is 1. Predictor 15 indicates
-that the type of PNG prediction algorithm may change in subsequent lines. We always check algorithm marker anyway.
-*/
-
-enum predictor_code {
- NONE_PREDICTOR = 1,
- TIFF_PREDICTOR = 2,
- PNG_NONE_PREDICTOR = 10,
- PNG_SUB_PREDICTOR = 11,
- PNG_UP_PREDICTOR = 12,
- PNG_AVERAGE_PREDICTOR = 13,
- PNG_PAETH_PREDICTOR = 14,
- PNG_OPTIMUM_PREDICTOR = 15
-};
-
-/*
-All predoctor codecs first read the entire data row into a buffer. This is not crucial for the process,
-but allows to separate read/write states. In particular, there is one place in which codec functions
-may return on EOD.
-*/
-
-#define start_row(state) (state->rowindex = 0, state->rowin = state->buffer)
-
-static int read_scanline (predictor_state *state, iof *I, int size)
-{
- int rowtail, left;
- while ((rowtail = size - state->rowend) > 0)
- {
- left = (int)iof_left(I);
- if (left >= rowtail)
- {
- memcpy(state->buffer + state->rowend, I->pos, (size_t)rowtail);
- state->rowend += rowtail;
- I->pos += rowtail;
- start_row(state);
- break;
- }
- else
- {
- if ((rowtail = left) > 0)
- {
- memcpy(state->buffer + state->rowend, I->pos, (size_t)rowtail);
- state->rowend += rowtail;
- I->pos += rowtail;
- }
- if (iof_input(I) == 0)
- {
- if (state->rowend == 0) // no scanline to process, no more input
- return state->flush ? IOFEOF : IOFEMPTY;
- /* If we are here, there is an incomplete scanline in buffer:
- - if there is a chance for more (state->flush == 0), than wait for more
- - otherwise encode/decode the last incomplete line?
- pdf spec p. 76 says that "A row occupies a whole number of bytes",
- so this situation should be considered abnormal (not found so far).
- */
- if (!state->flush)
- return IOFEMPTY;
- loggerf("incomplete scanline in predictor filter");
- //return IOFERR;
- state->status = STATUS_LAST;
- state->rowsize -= size - state->rowend;
- start_row(state);
- break;
- }
- }
- }
- return STATUS_CONTINUE;
-}
-
-#define read_row(state, I, size, status) if ((status = read_scanline(state, I, size)) != STATUS_CONTINUE) return status
-
-#define ensure_output_bytes(O, n) if (!iof_ensure(O, n)) return IOFFULL
-
-#define tobyte(c) ((unsigned char)(c))
-#define tocomp(c) ((unsigned short)(c))
-
-#define row_byte(state) (state->rowin[state->rowindex])
-
-#define up_pixel_byte(state) (state->rowup[state->rowindex])
-#define upleft_pixel_byte(state) (state->rowup[state->rowindex - state->pixelsize])
-#define left_pixel_byte(state) (state->rowsave[state->rowindex - state->pixelsize])
-
-#define save_pixel_byte(state, c) (state->rowsave[state->rowindex] = c)
-
-#define left_pixel_component(state) (state->prevcomp[state->compindex]) // tiff predictor with 2, 4, 8, 16 components
-#define left_pixel_value(state) (state->prevpixel[0]) // tiff predictor with 1bit components
-
-#define save_pixel_component(state, c) ((void)\
- ((state->prevcomp[state->compindex] = c), \
- (++state->compindex < state->components || (state->compindex = 0))))
-
-#define save_pixel_value(state, c) (state->prevpixel[0] = c)
-
-/* Once the codec function is done with the scanline, we set imaginary left pixel data to zero, and reset row counters to
-zero in order to allow buffering another input scanline. */
-
-#define reset_row(state) state->rowend = 0
-
-#define reset_png_row(state) (memcpy(state->rowup, state->rowsave, state->rowsize), state->predictorbyte = 0, reset_row(state))
-
-#define reset_tiff_row(state) \
- memset(state->prevcomp, 0, state->pixbufsize), \
- state->bitsin = state->bitsout = 0, \
- state->compin = state->compout = 0, \
- reset_row(state), \
- state->sampleindex = state->compindex = 0
-
-/* PNG paeth predictor function; http://www.libpng.org/pub/png/book/chapter09.html
-Compute the base value p := left + up - upleft, then choose that byte the closest
-(of the smallest absolute difference) to the base value. Left byte has a precedence. */
-
-
-static int paeth (predictor_state *state)
-{
- int p, p1, p2, p3;
- p = left_pixel_byte(state) + up_pixel_byte(state) - upleft_pixel_byte(state);
- p1 = p >= left_pixel_byte(state) ? (p - left_pixel_byte(state)) : (left_pixel_byte(state) - p);
- p2 = p >= up_pixel_byte(state) ? (p - up_pixel_byte(state)) : (up_pixel_byte(state) - p);
- p3 = p >= upleft_pixel_byte(state) ? (p - upleft_pixel_byte(state)) : (upleft_pixel_byte(state) - p);
- return (p1 <= p2 && p1 <= p3) ? left_pixel_byte(state) : (p2 <= p3 ? up_pixel_byte(state) : upleft_pixel_byte(state));
-}
-
-/* predictor decoder */
-
-iof_status predictor_decode_state (iof *I, iof *O, predictor_state *state)
-{
- int status, c, d, outbytes;
- while (state->status == STATUS_CONTINUE)
- {
- if (state->default_predictor >= 10) // PNG predictor?
- {
- read_row(state, I, state->rowsize + 1, status);
- if (state->predictorbyte == 0)
- { // we could actually check state->rowin <> state->buffer, but we need this flag for encoder anyway
- state->current_predictor = row_byte(state) + 10;
- state->predictorbyte = 1;
- ++state->rowin;
- }
- }
- else
- {
- read_row(state, I, state->rowsize, status);
- }
- switch (state->current_predictor)
- {
- case NONE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- iof_set(O, c);
- }
- reset_row(state);
- break;
- case TIFF_PREDICTOR:
- switch (state->compbits)
- {
- case 1:
- outbytes = (state->components + 7) >> 3;
- for ( ; state->sampleindex < state->rowsamples; ++state->sampleindex)
- {
- ensure_output_bytes(O, outbytes);
- while (state->bitsin < state->components)
- {
- state->compin = (state->compin << 8) | row_byte(state);
- state->bitsin += 8;
- ++state->rowindex;
- }
- state->bitsin -= state->components;
- d = state->compin >> state->bitsin;
- state->compin &= (1 << state->bitsin) - 1;
- c = d ^ left_pixel_value(state);
- save_pixel_value(state, c);
- state->compout = (state->compout << state->components) | c;
- state->bitsout += state->components;
- while (state->bitsout >= 8)
- {
- state->bitsout -= 8;
- iof_set(O, state->compout >> state->bitsout);
- state->compout &= (1 << state->bitsout) - 1;
- }
- }
- if (state->bitsout > 0)
- {
- ensure_output_bytes(O, 1);
- iof_set(O, state->compin << (8 - state->bitsout));
- }
- break;
- case 2: case 4:
- for ( ; state->sampleindex < state->rowsamples; ++state->sampleindex)
- {
- for ( ; state->compindex < state->components; ) // state->compindex is ++ed by save_pixel_component()
- {
- ensure_output_bytes(O, 1);
- if (state->bitsin < state->compbits)
- {
- state->compin = (state->compin << 8) | row_byte(state);
- state->bitsin += 8;
- ++state->rowindex;
- }
- state->bitsin -= state->compbits;
- d = state->compin >> state->bitsin;
- state->compin &= (1 << state->bitsin) - 1;
- c = (d + left_pixel_component(state)) & 0xff;
- save_pixel_component(state, c);
- state->compout = (state->compout << state->compbits) | c;
- state->bitsout += state->compbits;
- if (state->bitsout >= 8)
- {
- state->bitsout -= 8;
- iof_set(O, state->compout >> state->bitsout);
- state->compout &= (1 << state->bitsout) - 1;
- }
- }
- }
- if (state->bitsout > 0)
- {
- ensure_output_bytes(O, 1);
- iof_set(O, state->compin << (8 - state->bitsout));
- }
- break;
- case 8:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = (row_byte(state) + left_pixel_component(state)) & 0xff;
- save_pixel_component(state, c);
- iof_set(O, c);
- }
- break;
- case 16:
- for ( ; state->rowindex < state->rowsize - 1; ++state->rowindex)
- {
- ensure_output_bytes(O, 2);
- d = row_byte(state) << 8;
- ++state->rowindex;
- d |= row_byte(state);
- c = (d + left_pixel_component(state)) & 0xff;
- save_pixel_component(state, c);
- iof_set2(O, c >> 8, c & 0xff);
- }
- break;
- default:
- return IOFERR;
- }
- reset_tiff_row(state);
- break;
- case PNG_NONE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- save_pixel_byte(state, c); // next row may need it
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- case PNG_SUB_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = (row_byte(state) + left_pixel_byte(state)) & 0xff;
- save_pixel_byte(state, c);
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- case PNG_UP_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = (row_byte(state) + up_pixel_byte(state)) & 0xff;
- save_pixel_byte(state, c);
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- case PNG_AVERAGE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = (row_byte(state) + ((up_pixel_byte(state) + left_pixel_byte(state)) / 2)) & 0xff;
- save_pixel_byte(state, c);
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- case PNG_PAETH_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = (row_byte(state) + paeth(state)) & 0xff;
- save_pixel_byte(state, c);
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- //case PNG_OPTIMUM_PREDICTOR: // valid as default_redictor, but not as algorithm identifier byte
- default:
- return IOFERR;
- }
- }
- return state->status == STATUS_LAST ? IOFERR : IOFEOF;
-}
-
-/* predictor encoder */
-
-iof_status predictor_encode_state (iof *I, iof *O, predictor_state *state)
-{
- int status, c, d, outbytes;
- while (state->status == STATUS_CONTINUE)
- {
- read_row(state, I, state->rowsize, status);
- if (state->current_predictor >= 10 && state->predictorbyte == 0)
- {
- ensure_output_bytes(O, 1);
- iof_set(O, state->current_predictor - 10);
- state->predictorbyte = 1;
- }
- switch (state->current_predictor)
- {
- case NONE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- iof_set(O, c);
- }
- reset_row(state);
- break;
- case TIFF_PREDICTOR:
- switch (state->compbits)
- {
- case 1:
- outbytes = (state->components + 7) >> 3;
- for ( ; state->sampleindex < state->rowsamples; ++state->sampleindex)
- {
- ensure_output_bytes(O, outbytes);
- while (state->bitsin < state->components)
- {
- state->compin = (state->compin << 8) | row_byte(state);
- state->bitsin += 8;
- ++state->rowindex;
- }
- state->bitsin -= state->components;
- c = state->compin >> state->bitsin;
- state->compin &= (1 << state->bitsin) - 1;
- d = c ^ left_pixel_value(state);
- save_pixel_value(state, c);
- state->compout = (state->compout << state->components) | d;
- state->bitsout += state->components;
- while (state->bitsout >= 8)
- {
- state->bitsout -= 8;
- iof_set(O, state->compout >> state->bitsout);
- state->compout &= (1 << state->bitsout) - 1;
- }
- }
- if (state->bitsout > 0)
- {
- ensure_output_bytes(O, 1);
- iof_set(O, state->compin << (8 - state->bitsout));
- }
- break;
- case 2: case 4:
- for ( ; state->sampleindex < state->rowsamples; ++state->sampleindex)
- {
- for ( ; state->compindex < state->components; )
- {
- ensure_output_bytes(O, 1);
- if (state->bitsin < state->compbits)
- {
- state->compin = (state->compin << 8) | row_byte(state);
- state->bitsin += 8;
- ++state->rowindex;
- }
- state->bitsin -= state->compbits;
- c = state->compin >> state->bitsin;
- state->compin &= (1 << state->bitsin) - 1;
- d = tocomp(c - left_pixel_component(state));
- save_pixel_component(state, c);
- state->compout = (state->compout << state->compbits) | d;
- state->bitsout += state->compbits;
- if (state->bitsout >= 8)
- {
- state->bitsout -= 8;
- iof_set(O, state->compout >> state->bitsout);
- state->compout &= (1 << state->bitsout) - 1;
- }
- }
- }
- if (state->bitsout > 0)
- {
- ensure_output_bytes(O, 1);
- iof_set(O, state->compin << (8 - state->bitsout));
- }
- break;
- case 8:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- d = tobyte(c - left_pixel_component(state));
- save_pixel_component(state, c);
- iof_set(O, d);
- }
- break;
- case 16:
- for ( ; state->rowindex < state->rowsize - 1; ++state->rowindex)
- {
- ensure_output_bytes(O, 2);
- c = row_byte(state) << 8;
- ++state->rowindex;
- c |= row_byte(state);
- d = tocomp(c - left_pixel_component(state));
- save_pixel_component(state, c);
- iof_set2(O, d >> 8, d & 0xff);
- }
- break;
- default:
- return IOFERR;
- }
- reset_tiff_row(state);
- break;
- case PNG_NONE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- save_pixel_byte(state, c); // next row may need it
- iof_set(O, c);
- }
- reset_png_row(state);
- break;
- case PNG_SUB_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- d = tobyte(c - left_pixel_byte(state));
- save_pixel_byte(state, c);
- iof_set(O, d);
- }
- reset_png_row(state);
- break;
- case PNG_OPTIMUM_PREDICTOR: // not worthy to perform optimization
- case PNG_UP_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- d = tobyte(c - up_pixel_byte(state));
- save_pixel_byte(state, c);
- iof_set(O, d);
- }
- reset_png_row(state);
- break;
- case PNG_AVERAGE_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- d = tobyte(c - ((up_pixel_byte(state) + left_pixel_byte(state)) >> 1));
- save_pixel_byte(state, c);
- iof_set(O, d);
- }
- reset_png_row(state);
- break;
- case PNG_PAETH_PREDICTOR:
- for ( ; state->rowindex < state->rowsize; ++state->rowindex)
- {
- ensure_output_bytes(O, 1);
- c = row_byte(state);
- d = tobyte(c - paeth(state));
- save_pixel_byte(state, c);
- iof_set(O, d);
- }
- reset_png_row(state);
- break;
- default:
- return IOFERR;
- }
- }
- return state->status == STATUS_LAST ? IOFERR : IOFEOF;
-}
-
-iof_status predictor_decode (iof *I, iof *O, int predictor, int rowsamples, int components, int compbits)
-{
- predictor_state state;
- int ret;
- predictor_decoder_init(&state, predictor, rowsamples, components, compbits);
- state.flush = 1;
- ret = predictor_decode_state(I, O, &state);
- predictor_decoder_close(&state);
- return ret;
-}
-
-iof_status predictor_encode (iof *I, iof *O, int predictor, int rowsamples, int components, int compbits)
-{
- predictor_state state;
- int ret;
- predictor_encoder_init(&state, predictor, rowsamples, components, compbits);
- state.flush = 1;
- ret = predictor_encode_state(I, O, &state);
- predictor_encoder_close(&state);
- return ret;
-}
-
-/* filters */
-
-// predictor decoder function
-
-static size_t predictor_decoder (iof *F, iof_mode mode)
-{
- predictor_state *state;
- iof_status status;
- size_t tail;
-
- state = iof_filter_state(predictor_state *, F);
- switch(mode)
- {
- case IOFLOAD:
- case IOFREAD:
- if (F->flags & IOF_STOPPED)
- return 0;
- tail = iof_tail(F);
- F->pos = F->buf + tail;
- F->end = F->buf + F->space;
- do {
- status = predictor_decode_state(F->next, F, state);
- } while (mode == IOFLOAD && status == IOFFULL && iof_resize_buffer(F));
- return iof_decoder_retval(F, "predictor", status);
- case IOFCLOSE:
- predictor_decoder_close(state);
- iof_free(F);
- return 0;
- default:
- break;
- }
- return 0;
-}
-
-// predictor encoder function
-
-static size_t predictor_encoder (iof *F, iof_mode mode)
-{
- predictor_state *state;
- iof_status status;
-
- state = iof_filter_state(predictor_state *, F);
- switch (mode)
- {
- case IOFFLUSH:
- state->flush = 1;
- // fall through
- case IOFWRITE:
- F->end = F->pos;
- F->pos = F->buf;
- status = predictor_encode_state(F, F->next, state);
- return iof_encoder_retval(F, "predictor", status);
- case IOFCLOSE:
- if (!state->flush)
- predictor_encoder(F, IOFFLUSH);
- predictor_encoder_close(state);
- iof_free(F);
- return 0;
- default:
- break;
- }
- return 0;
-}
-
-iof * iof_filter_predictor_decoder (iof *N, int predictor, int rowsamples, int components, int compbits)
-{
- iof *I;
- predictor_state *state;
- I = iof_filter_reader(predictor_decoder, sizeof(predictor_state), &state);
- iof_setup_next(I, N);
- if (predictor_decoder_init(state, predictor, rowsamples, components, compbits) == NULL)
- {
- iof_discard(I);
- return NULL;
- }
- state->flush = 1;
- return I;
-}
-
-iof * iof_filter_predictor_encoder (iof *N, int predictor, int rowsamples, int components, int compbits)
-{
- iof *O;
- predictor_state *state;
- O = iof_filter_writer(predictor_encoder, sizeof(predictor_state), &state);
- iof_setup_next(O, N);
- if (predictor_encoder_init(state, predictor, rowsamples, components, compbits) == NULL)
- {
- iof_discard(O);
- return NULL;
- }
- return O;
-}
Deleted: trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c-OK
===================================================================
--- trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c-OK 2018-09-05 21:32:42 UTC (rev 48592)
+++ trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c-OK 2018-09-05 21:35:27 UTC (rev 48593)
@@ -1,2938 +0,0 @@
-/* input/iutput stream */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-
-#include "utilmem.h"
-#include "utillog.h"
-#include "utiliof.h"
-
-/* commons */
-
-void * iof_copy_data (const void *data, size_t size)
-{
- return memcpy(util_malloc(size), data, size);
-}
-
-uint8_t * iof_copy_file_data (const char *filename, size_t *psize)
-{
- FILE *file;
- size_t size;
- uint8_t *data;
- if ((file = fopen(filename, "rb")) == NULL)
- return NULL;
- fseek(file, 0, SEEK_END);
- size = (size_t)ftell(file);
- data = (uint8_t *)util_malloc(size);
- fseek(file, 0, SEEK_SET);
- if ((*psize = fread(data, 1, size, file)) != size)
- {
- util_free(data);
- data = NULL;
- }
- fclose(file);
- return data;
-}
-
-uint8_t * iof_copy_file_handle_data (FILE *file, size_t *psize)
-{
- size_t size;
- uint8_t *data;
- //long offset = ftell(file); // keep offset intact?
- fseek(file, 0, SEEK_END);
- size = (size_t)ftell(file);
- data = (uint8_t *)util_malloc(size);
- fseek(file, 0, SEEK_SET);
- if ((*psize = fread(data, 1, size, file)) != size)
- {
- util_free(data);
- data = NULL;
- }
- //fseek(file, offset, SEEK_SET)
- return data;
-}
-
-FILE * iof_get_file (iof *F)
-{
- if (F->flags & IOF_FILE)
- return iof_file_get_file(F->iofile);
- if (F->flags & IOF_FILE_HANDLE)
- return F->file;
- return NULL;
-}
-
-const char * iof_status_kind (iof_status status)
-{
- switch (status)
- {
- case IOFEOF:
- return "IOFEOF";
- case IOFERR:
- return "IOFERR";
- case IOFEMPTY:
- return "IOFEMPTY";
- case IOFFULL:
- return "IOFFULL";
- default:
- break;
- }
- return "(unknown)";
-}
-
-/* shared pseudofile */
-
-#define IOF_FILE_DEFAULTS 0
-
-iof_file * iof_file_new (FILE *file)
-{
- iof_file *iofile = (iof_file *)util_malloc(sizeof(iof_file));
- iof_file_set_fh(iofile, file);
- iofile->offset = NULL;
- iofile->size = 0;
- iofile->name = NULL;
- iofile->refcount = 0;
- iofile->flags = IOF_FILE_DEFAULTS|IOF_ALLOC;
- return iofile;
-}
-
-iof_file * iof_file_init (iof_file *iofile, FILE *file)
-{
- iof_file_set_fh(iofile, file);
- iofile->offset = NULL;
- iofile->size = 0;
- iofile->name = NULL;
- iofile->refcount = 0;
- iofile->flags = IOF_FILE_DEFAULTS;
- return iofile;
-}
-
-iof_file * iof_file_rdata (const void *data, size_t size)
-{
- iof_file *iofile = (iof_file *)util_malloc(sizeof(iof_file));
- iofile->rbuf = iofile->rpos = (const uint8_t *)data;
- iofile->rend = iofile->rbuf + size;
- iofile->offset = NULL;
- iofile->size = 0;
- iofile->name = NULL;
- iofile->refcount = 0;
- iofile->flags = IOF_FILE_DEFAULTS|IOF_ALLOC|IOF_DATA;
- return iofile;
-}
-
-iof_file * iof_file_rdata_init (iof_file *iofile, const void *data, size_t size)
-{
- iofile->rbuf = iofile->rpos = (const uint8_t *)data;
- iofile->rend = iofile->rbuf + size;
- iofile->offset = NULL;
- iofile->size = 0; // letse keep it consequently set to zero (only for user disposal)
- iofile->name = NULL;
- iofile->refcount = 0;
- iofile->flags = IOF_FILE_DEFAULTS|IOF_DATA;
- return iofile;
-}
-
-iof_file * iof_file_wdata (void *data, size_t size)
-{
- return iof_file_rdata((const void *)data, size);
-}
-
-iof_file * iof_file_wdata_init (iof_file *iofile, void *data, size_t size)
-{
- return iof_file_rdata_init(iofile, (const void *)data, size);
-}
-
-/* typical uses so far */
-
-iof_file * iof_file_reader_from_file_handle (iof_file *iofile, const char *filename, FILE *file, int preload, int closefile)
-{
- uint8_t *data;
- size_t size;
-
- if (preload)
- {
- if ((data = iof_copy_file_handle_data(file, &size)) == NULL)
- {
- if (closefile)
- fclose(file);
- return NULL;
- }
- if (iofile == NULL)
- iofile = iof_file_rdata(data, size);
- else
- iof_file_rdata_init(iofile, data, size);
- iofile->flags |= IOF_BUFFER_ALLOC;
- if (closefile)
- fclose(file);
- }
- else
- {
- if (iofile == NULL)
- iofile = iof_file_new(file);
- else
- iof_file_init(iofile, file);
- if (closefile)
- iofile->flags |= IOF_CLOSE_FILE;
- }
- if (filename != NULL)
- iof_file_set_name(iofile, filename);
- return iofile;
-}
-
-iof_file * iof_file_reader_from_file (iof_file *iofile, const char *filename, int preload)
-{
- FILE *file;
- if ((file = fopen(filename, "rb")) == NULL)
- return NULL;
- return iof_file_reader_from_file_handle(iofile, filename, file, preload, 1);
-}
-
-iof_file * iof_file_reader_from_data (iof_file *iofile, const void *data, size_t size, int preload, int freedata)
-{
- void *newdata;
- if (data == NULL)
- return NULL;
- if (preload)
- {
- newdata = iof_copy_data(data, size);
- if (iofile == NULL)
- iofile = iof_file_rdata(newdata, size);
- else
- iof_file_rdata_init(iofile, newdata, size);
- iofile->flags |= IOF_BUFFER_ALLOC;
- //if (freedata) // hardly makes sense... we can't free const void *
- // util_free((void *)data);
- }
- else
- {
- if (iofile == NULL)
- iofile = iof_file_rdata(data, size);
- else
- iof_file_rdata_init(iofile, data, size);
- if (freedata)
- iofile->flags |= IOF_BUFFER_ALLOC;
- }
- return iofile;
-}
-
-/*
-iof_file * iof_file_writer_from_file (iof_file *iofile, const char *filename)
-{
- FILE *file;
- if ((file = fopen(filename, "wb")) == NULL)
- return NULL;
- if (iofile == NULL)
- iofile = iof_file_new(file);
- else
- iof_file_init(iofile, file);
- iofile->flags |= IOF_CLOSE_FILE;
- iof_file_set_name(iofile, filename);
- return iofile;
-}
-*/
-
-/*
-Because of limited number of FILE* handles available, we may need to close contained handle
-between accessing it. In applications so far (fonts, images) we typically need the source
-to parse the file on creation and to rewrite or reload the data on dump. All iof_file api
-functions assume that iofile has FILE* opened. Reopening it on every access (ftell, fseek,
-read/write) makes no sense, as we would effectively loose control. If the caller invalidates
-iofile by closing and nulling its file handle, it is also responsible to reopen when necessary.
-*/
-
-int iof_file_close_input (iof_file *iofile)
-{
- FILE *file;
- if (iofile->flags & IOF_DATA)
- return 0;
- if ((file = iof_file_get_fh(iofile)) == NULL)
- return 0;
- fclose(file);
- iof_file_set_fh(iofile, NULL);
- iofile->flags &= ~IOF_RECLOSE_FILE;
- iofile->flags |= IOF_REOPEN_FILE;
- return 1;
-}
-
-int iof_file_reopen_input (iof_file *iofile)
-{ // returns true if iofile readable
- FILE *file;
- const char *filename;
- if (iofile->flags & IOF_DATA)
- return 1;
- if ((file = iof_file_get_fh(iofile)) != NULL)
- return 1; // if present, assumed readable
- if ((filename = iofile->name) == NULL || (file = fopen(filename, "rb")) == NULL)
- return 0;
- iof_file_set_fh(iofile, file);
- iofile->flags &= ~IOF_REOPEN_FILE;
- iofile->flags |= IOF_RECLOSE_FILE;
- return 1;
-}
-
-/* freeing iof_file */
-
-void iof_file_free (iof_file *iofile)
-{
- FILE *file;
- if (iofile->flags & IOF_DATA)
- {
- if (iofile->flags & IOF_BUFFER_ALLOC)
- {
- iofile->flags &= ~IOF_BUFFER_ALLOC;
- if (iofile->buf != NULL)
- {
- util_free(iofile->buf);
- iofile->buf = iofile->pos = iofile->end = NULL;
- }
- }
- }
- else if ((file = iof_file_get_fh(iofile)) != NULL)
- {
- if (iofile->flags & IOF_CLOSE_FILE)
- fclose(file);
- iof_file_set_fh(iofile, NULL);
- }
- iof_file_set_name(iofile, NULL);
- if (iofile->flags & IOF_ALLOC)
- util_free(iofile);
-}
-
-/* set filename for reopen */
-
-void iof_file_set_name (iof_file *iofile, const char *name)
-{
- if (iofile->name != NULL)
- util_free(iofile->name);
- if (name != NULL)
- iofile->name = iof_copy_data(name, strlen(name) + 1);
- else
- iofile->name = NULL;
-}
-
-/* seek */
-
-int iof_file_seek (iof_file *iofile, long offset, int whence)
-{
- if (iofile->flags & IOF_DATA)
- {
- switch (whence)
- {
- case SEEK_SET:
- if (offset >= 0 && iofile->buf + offset <= iofile->end)
- {
- iofile->pos = iofile->buf + offset;
- return 0;
- }
- return -1;
- case SEEK_CUR:
- if ((offset >= 0 && iofile->pos + offset <= iofile->end) || (offset < 0 && iofile->pos + offset >= iofile->buf))
- {
- iofile->pos += offset;
- return 0;
- }
- return -1;
- case SEEK_END:
- if (offset <= 0 && iofile->end + offset >= iofile->buf)
- {
- iofile->pos = iofile->end + offset;
- return 0;
- }
- return -1;
- }
- return -1;
- }
- return fseek(iof_file_get_fh(iofile), offset, whence);
-}
-
-/* */
-
-long iof_file_tell (iof_file *iofile)
-{
- return (iofile->flags & IOF_DATA) ? (long)(iofile->pos - iofile->buf) : ftell(iof_file_get_fh(iofile));
-}
-
-size_t iof_file_size (iof_file *iofile)
-{
- long pos, size;
- FILE *file;
- if (iofile->flags & IOF_DATA)
- return (size_t)iof_space(iofile);
- file = iof_file_get_fh(iofile);
- pos = ftell(file);
- fseek(file, 0, SEEK_END);
- size = ftell(file);
- fseek(file, pos, SEEK_SET);
- return size;
-}
-
-int iof_file_eof (iof_file *iofile)
-{
- if (iofile->flags & IOF_DATA)
- return iofile->pos == iofile->end ? -1 : 0;
- return feof(iof_file_get_fh(iofile));
-}
-
-int iof_file_flush (iof_file *iofile)
-{
- if (iofile->flags & IOF_DATA)
- return 0;
- return fflush(iof_file_get_fh(iofile));
-}
-
-size_t iof_file_read (void *ptr, size_t size, size_t items, iof_file *iofile)
-{
- if (iofile->flags & IOF_DATA)
- {
- size_t bytes = size * items;
- if (bytes > (size_t)iof_left(iofile))
- bytes = (size_t)iof_left(iofile);
- memcpy(ptr, iofile->pos, bytes);
- iofile->pos += bytes;
- return bytes / size; // number of elements read
- }
- return fread(ptr, size, items, iof_file_get_fh(iofile));
-}
-
-static size_t iof_file_data_resizeto (iof_file *iofile, size_t space)
-{
- uint8_t *newbuf;
- size_t size;
- size = iof_size(iofile);
- if (iofile->flags & IOF_BUFFER_ALLOC)
- {
- newbuf = (uint8_t *)util_realloc(iofile->buf, space);
- }
- else
- {
- newbuf = (uint8_t *)util_malloc(space);
- if (size > 0)
- memcpy(newbuf, iofile->buf, size);
- iofile->flags |= IOF_BUFFER_ALLOC;
- }
- iofile->buf = newbuf;
- iofile->pos = newbuf + size;
- iofile->end = newbuf + space;
- return space - size;
-}
-
-#define iof_file_data_resize(iofile) iof_file_data_resizeto(iofile, iof_space(iofile) << 1)
-
-size_t iof_file_write (const void *ptr, size_t size, size_t items, iof_file *iofile)
-{
- if (iofile->flags & IOF_DATA)
- {
- size_t space, sizesofar, bytes;
- bytes = size * items;
- if (bytes > (size_t)iof_left(iofile))
- {
- if ((space = iof_space(iofile)) == 0) // allow iofile->buf/end initially NULL
- space = BUFSIZ;
- for (sizesofar = iof_size(iofile), space <<= 1; sizesofar + bytes > space; space <<= 1)
- ;
- if (iof_file_data_resizeto(iofile, space) == 0)
- return 0;
- }
- memcpy(iofile->pos, ptr, bytes);
- iofile->pos += bytes;
- return bytes / size;
- }
- return fwrite(ptr, size, items, iof_file_get_fh(iofile));
-}
-
-size_t iof_file_ensure (iof_file *iofile, size_t bytes)
-{
- if (iofile->flags & IOF_DATA)
- {
- size_t space, sizesofar, left;
- left = (size_t)iof_left(iofile);
- if (bytes > left)
- {
- if ((space = iof_space(iofile)) == 0) // allow iofile->buf/end initially NULL
- space = BUFSIZ;
- for (sizesofar = iof_size(iofile), space <<= 1; sizesofar + bytes > space; space <<= 1);
- return iof_file_data_resizeto(iofile, space);
- }
- return left;
- }
- return 0;
-}
-
-int iof_file_getc (iof_file *iofile)
-{
- if (iofile->flags & IOF_DATA)
- return iofile->pos < iofile->end ? *iofile->pos++ : IOFEOF;
- return fgetc(iof_file_get_fh(iofile));
-}
-
-int iof_file_putc (iof_file *iofile, int c)
-{
- if (iofile->flags & IOF_DATA)
- {
- if (iofile->pos >= iofile->end)
- if (iof_file_data_resize(iofile) == 0)
- return IOFEOF;
- *iofile->pos++ = (uint8_t)c;
- return c;
- }
- return fputc(c, iof_file_get_fh(iofile));
-}
-
-static int iof_file_sync (iof_file *iofile, size_t *offset)
-{
- if (iofile->offset != offset)
- {
- if (iofile->offset != NULL)
- *iofile->offset = iof_file_tell(iofile);
- iofile->offset = offset;
- if (offset) // let offset be NULL
- return iof_file_seek(iofile, (long)*offset, SEEK_SET);
- }
- return 0;
-}
-
-//#define iof_file_unsync(iofile, poffset) (void)((iofile)->offset == poffset && (((iofile)->offset = NULL), 0))
-#define iof_file_unsync(iofile, poffset) ((void)poffset, (iofile)->offset = NULL)
-
-/* iof seek */
-
-#define iof_reader_reset(I) ((I)->pos = (I)->end = (I)->buf)
-#define iof_reader_reseek_file(I, offset, whence) (fseek((I)->file, offset, whence) == 0 ? (iof_reader_reset(I), 0) : -1)
-#define iof_reader_reseek_iofile(I, offset, whence) (iof_file_seek((I)->iofile, offset, whence) == 0 ? (iof_reader_reset(I), 0) : -1)
-
-#define iof_writer_reset(O) ((O)->pos = (O)->buf)
-#define iof_writer_reseek_file(O, offset, whence) (iof_flush(O), (fseek((O)->file, offset, whence) == 0 ? (iof_writer_reset(O), 0) : -1))
-#define iof_writer_reseek_iofile(O, offset, whence) (iof_flush(O), (iof_file_seek((O)->iofile, offset, whence) == 0 ? (iof_writer_reset(O), 0) : -1))
-
-static int iof_reader_seek_data (iof *I, long offset, int whence)
-{
- switch (whence)
- {
- case SEEK_SET:
- if (offset >= 0 && I->buf + offset <= I->end)
- {
- I->pos = I->buf + offset;
- return 0;
- }
- return -1;
- case SEEK_CUR:
- if ((offset >= 0 && I->pos + offset <= I->end) || (offset < 0 && I->pos + offset >= I->buf))
- {
- I->pos += offset;
- return 0;
- }
- return -1;
- case SEEK_END:
- if (offset <= 0 && I->end + offset >= I->buf)
- {
- I->pos = I->end + offset;
- return 0;
- }
- return -1;
- }
- return -1;
-}
-
-static int iof_reader_seek_iofile (iof *I, long offset, int whence)
-{
- long fileoffset;
- switch (whence)
- {
- case SEEK_SET:
- fileoffset = iof_file_tell(I->iofile);
- if (offset <= fileoffset && offset >= fileoffset - iof_space(I))
- {
- I->pos = I->end - (fileoffset - offset);
- return 0;
- }
- return iof_reader_reseek_iofile(I, offset, SEEK_SET);
- case SEEK_CUR:
- if ((offset >= 0 && I->pos + offset <= I->end) || (offset < 0 && I->pos + offset >= I->buf))
- {
- I->pos += offset;
- return 0;
- }
- return iof_reader_reseek_iofile(I, offset, SEEK_CUR);
- case SEEK_END:
- return iof_reader_reseek_iofile(I, offset, SEEK_END); // can we do better?
- }
- return -1;
-}
-
-static int iof_reader_seek_file (iof *I, long offset, int whence)
-{
- long fileoffset;
- switch (whence)
- {
- case SEEK_SET:
- fileoffset = ftell(I->file);
- if (offset <= fileoffset && offset >= fileoffset - iof_space(I))
- {
- I->pos = I->end - (fileoffset - offset);
- return 0;
- }
- return iof_reader_reseek_file(I, offset, SEEK_SET);
- case SEEK_CUR:
- if ((offset >= 0 && I->pos + offset <= I->end) || (offset < 0 && I->pos + offset >= I->buf))
- {
- I->pos += offset;
- return 0;
- }
- return iof_reader_reseek_file(I, offset, SEEK_CUR);
- case SEEK_END:
- return iof_reader_reseek_file(I, offset, SEEK_END); // can we do better?
- }
- return -1;
-}
-
-int iof_reader_seek (iof *I, long offset, int whence)
-{
- I->flags &= ~IOF_STOPPED;
- if (I->flags & IOF_FILE)
- return iof_reader_seek_iofile(I, offset, whence);
- if (I->flags & IOF_FILE_HANDLE)
- return iof_reader_seek_file(I, offset, whence);
- if (I->flags & IOF_DATA)
- return iof_reader_seek_data(I, offset, whence);
- return -1;
-}
-
-int iof_reader_reseek (iof *I, long offset, int whence)
-{
- I->flags &= ~IOF_STOPPED;
- if (I->flags & IOF_FILE)
- return iof_reader_reseek_iofile(I, offset, whence);
- if (I->flags & IOF_FILE_HANDLE)
- return iof_reader_reseek_file(I, offset, whence);
- if (I->flags & IOF_DATA)
- return iof_reader_seek_data(I, offset, whence);
- return -1;
-}
-
-static int iof_writer_seek_data (iof *O, long offset, int whence)
-{
- /*
- fseek() allows to seek after the end of file. Seeking does not increase the output file.
- No byte is written before fwirte(). It seems to fill the gap with zeros. Until we really need that,
- no seeking out of bounds for writers.
- */
- O->flags &= ~IOF_STOPPED;
- return iof_reader_seek_data(O, offset, whence);
-}
-
-static int iof_writer_seek_iofile (iof *O, long offset, int whence)
-{
- long fileoffset;
- switch (whence)
- {
- case SEEK_SET:
- fileoffset = iof_file_tell(O->iofile);
- if (offset >= fileoffset && offset <= fileoffset + iof_space(O))
- {
- O->pos = O->buf + (offset - fileoffset);
- return 0;
- }
- return iof_writer_reseek_iofile(O, offset, SEEK_SET);
- case SEEK_CUR:
- if ((offset >=0 && O->pos + offset <= O->end) || (offset < 0 && O->pos + offset >= O->buf))
- {
- O->pos += offset;
- return 0;
- }
- return iof_writer_reseek_iofile(O, offset, SEEK_CUR);
- case SEEK_END:
- return iof_writer_reseek_iofile(O, offset, SEEK_END);
- }
- return -1;
-}
-
-static int iof_writer_seek_file (iof *O, long offset, int whence)
-{
- long fileoffset;
- switch (whence)
- {
- case SEEK_SET:
- fileoffset = ftell(O->file);
- if (offset >= fileoffset && offset <= fileoffset + iof_space(O))
- {
- O->pos = O->buf + (offset - fileoffset);
- return 0;
- }
- return iof_writer_reseek_file(O, offset, SEEK_SET);
- case SEEK_CUR:
- if ((offset >=0 && O->pos + offset <= O->end) || (offset < 0 && O->pos + offset >= O->buf))
- {
- O->pos += offset;
- return 0;
- }
- return iof_writer_reseek_file(O, offset, SEEK_CUR);
- case SEEK_END:
- return iof_writer_reseek_file(O, offset, SEEK_END);
- }
- return -1;
-}
-
-int iof_writer_seek (iof *I, long offset, int whence)
-{
- I->flags &= ~IOF_STOPPED;
- if (I->flags & IOF_FILE)
- return iof_writer_seek_iofile(I, offset, whence);
- if (I->flags & IOF_FILE_HANDLE)
- return iof_writer_seek_file(I, offset, whence);
- if (I->flags & IOF_DATA)
- return iof_writer_seek_data(I, offset, whence);
- return -1;
-}
-
-int iof_writer_reseek (iof *I, long offset, int whence)
-{
- I->flags &= ~IOF_STOPPED;
- if (I->flags & IOF_FILE)
- return iof_writer_reseek_iofile(I, offset, whence);
- if (I->flags & IOF_FILE_HANDLE)
- return iof_writer_reseek_file(I, offset, whence);
- if (I->flags & IOF_DATA)
- return iof_writer_seek_data(I, offset, whence);
- return -1;
-}
-
-int iof_seek (iof *F, long offset, int whence)
-{
- return (F->flags & IOF_WRITER) ? iof_writer_seek(F, offset, whence) : iof_reader_seek(F, offset, whence);
-}
-
-int iof_reseek (iof *F, long offset, int whence)
-{
- return (F->flags & IOF_WRITER) ? iof_writer_reseek(F, offset, whence) : iof_reader_reseek(F, offset, whence);
-}
-
-/* tell */
-
-long iof_reader_tell (iof *I)
-{
- if (I->flags & IOF_FILE)
- return iof_file_tell(I->iofile) - (long)iof_left(I);
- if (I->flags & IOF_FILE_HANDLE)
- return ftell(I->file) - (long)iof_left(I);
- //if (I->flags & IOF_DATA)
- return (long)iof_size(I);
-}
-
-long iof_writer_tell (iof *O)
-{
- if (O->flags & IOF_FILE)
- return iof_file_tell(O->iofile) + (long)iof_size(O);
- if (O->flags & IOF_FILE_HANDLE)
- return ftell(O->file) + (long)iof_size(O);
- //if (I->flags & IOF_DATA)
- return (long)iof_size(O);
-}
-
-long iof_tell (iof *I)
-{
- return (I->flags & IOF_WRITER) ? iof_writer_tell(I) : iof_reader_tell(I);
-}
-
-size_t iof_fsize (iof *I)
-{
- size_t pos, size;
- if (I->flags & IOF_FILE)
- return iof_file_size(I->iofile);
- if (I->flags & IOF_FILE_HANDLE)
- {
- pos = (size_t)ftell(I->file);
- fseek(I->file, 0, SEEK_END);
- size = (size_t)ftell(I->file);
- fseek(I->file, (long)pos, SEEK_SET);
- return size;
- }
- //if (I->flags & IOF_DATA)
- return (size_t)iof_space(I);
-}
-
-/* save reader tail */
-
-size_t iof_save_tail (iof *I)
-{
- size_t size, left;
- size = iof_size(I);
- left = iof_left(I);
- if (size >= left)
- memcpy(I->buf, I->pos, left);
- else
- memmove(I->buf, I->pos, left);
- return left;
-}
-
-size_t iof_input_save_tail (iof *I, size_t back)
-{
- size_t size;
- I->flags |= IOF_TAIL;
- I->pos -= back;
- size = iof_input(I);
- I->pos += back;
- I->flags &= ~IOF_TAIL;
- return size; // + back - back
-}
-
-/* read from file */
-
-/* iof free*/
-
-static size_t file_read (iof *I);
-static size_t file_load (iof *I);
-
-static size_t file_reader (iof *I, iof_mode mode)
-{
- switch (mode)
- {
- case IOFREAD:
- return file_read(I);
- case IOFLOAD:
- return file_load(I);
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_setup_file_handle_reader (iof *I, void *buffer, size_t space, FILE *f)
-{
- if (I == NULL)
- iof_setup_reader(I, buffer, space);
- else
- iof_reader_buffer(I, buffer, space);
- iof_setup_file(I, f);
- I->more = file_reader;
- return I;
-}
-
-iof * iof_setup_file_reader (iof *I, void *buffer, size_t space, const char *filename)
-{
- FILE *f;
- if ((f = fopen(filename, "rb")) == NULL)
- return NULL;
- if (I == NULL)
- iof_setup_reader(I, buffer, space);
- else
- iof_reader_buffer(I, buffer, space);
- iof_setup_file(I, f);
- I->flags |= IOF_CLOSE_FILE;
- I->more = file_reader;
- return I;
-}
-
-/* write to file */
-
-static size_t file_write (iof *O, int flush);
-
-static size_t file_writer (iof *O, iof_mode mode)
-{
- switch (mode)
- {
- case IOFWRITE:
- return file_write(O, 0);
- case IOFFLUSH:
- return file_write(O, 1);
- case IOFCLOSE:
- file_write(O, 1);
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_setup_file_handle_writer (iof *O, void *buffer, size_t space, FILE *f)
-{
- if (O == NULL)
- iof_setup_writer(O, buffer, space);
- else
- iof_writer_buffer(O, buffer, space);
- iof_setup_file(O, f);
- O->more = file_writer;
- return O;
-}
-
-iof * iof_setup_file_writer (iof *O, void *buffer, size_t space, const char *filename)
-{
- FILE *f;
- if ((f = fopen(filename, "wb")) == NULL)
- return NULL;
- if (O == NULL)
- iof_setup_writer(O, buffer, space);
- else
- iof_writer_buffer(O, buffer, space);
- iof_setup_file(O, f);
- O->flags |= IOF_CLOSE_FILE;
- O->more = file_writer;
- return O;
-}
-
-/* a dedicated handler for stdout/stderr */
-
-static size_t stdout_writer (iof *O, iof_mode mode)
-{
- switch(mode)
- {
- case IOFWRITE:
- {
- fwrite(O->buf, sizeof(uint8_t), iof_size(O), stdout);
- O->pos = O->buf;
- return O->space;
- }
- case IOFCLOSE:
- case IOFFLUSH:
- {
- fwrite(O->buf, sizeof(uint8_t), iof_size(O), stdout);
- fflush(stdout);
- O->pos = O->buf;
- return 0;
- }
- default:
- break;
- }
- return 0;
-}
-
-static size_t stderr_writer (iof *O, iof_mode mode)
-{
- switch(mode)
- {
- case IOFWRITE:
- {
- fwrite(O->buf, sizeof(uint8_t), iof_size(O), stderr);
- O->pos = O->buf;
- return O->space;
- }
- case IOFCLOSE:
- case IOFFLUSH:
- {
- fwrite(O->buf, sizeof(uint8_t), iof_size(O), stderr);
- fflush(stderr);
- O->pos = O->buf;
- return 0;
- }
- default:
- break;
- }
- return 0;
-}
-
-static uint8_t iof_stdout_buffer[BUFSIZ];
-iof iof_stdout = IOF_WRITER_STRUCT(stdout_writer, NULL, iof_stdout_buffer, BUFSIZ, 0);
-
-static uint8_t iof_stderr_buffer[BUFSIZ];
-iof iof_stderr = IOF_WRITER_STRUCT(stderr_writer, NULL, iof_stderr_buffer, BUFSIZ, 0);
-
-/* read from somewhere */
-
-iof * iof_reader (iof *I, void *link, iof_handler reader, const void *m, size_t bytes)
-{
- I->space = 0;
- I->link = link;
- I->more = reader;
- I->flags = 0;
- I->refcount = 0;
- if (m != NULL)
- {
- I->rbuf = I->rpos = (const uint8_t *)m;
- I->rend = (const uint8_t *)m + bytes;
- return I;
- }
- return NULL;
-}
-
-iof * iof_string_reader (iof *I, const void *s, size_t bytes)
-{
- I->space = 0;
- I->link = NULL;
- I->more = NULL;
- I->flags = 0; // iof_string() sets IOF_DATA
- I->refcount = 0;
- if (s != NULL)
- return iof_string(I, s, bytes);
- return NULL;
-}
-
-/* write somewhere */
-
-iof * iof_writer (iof *O, void *link, iof_handler writer, void *m, size_t bytes)
-{
- O->space = 0;
- O->link = link;
- O->more = writer;
- O->flags = 0;
- O->refcount = 0;
- if (m != NULL && bytes > 0)
- {
- O->buf = O->pos = (uint8_t *)m;
- O->end = (uint8_t *)m + bytes;
- return O;
- }
- // return iof_null(O);
- return NULL;
-}
-
-/* write to growing bytes buffer */
-
-static size_t iof_mem_handler (iof *O, iof_mode mode)
-{
- switch(mode)
- {
- case IOFWRITE:
- return iof_resize_buffer(O);
- case IOFCLOSE:
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_setup_buffer (iof *O, void *buffer, size_t space)
-{
- if (O == NULL)
- iof_setup_writer(O, buffer, space);
- else
- iof_writer_buffer(O, buffer, space);
- O->link = NULL;
- O->flags |= IOF_DATA;
- O->more = iof_mem_handler;
- return O;
-}
-
-iof * iof_setup_buffermin (iof *O, void *buffer, size_t space, size_t min)
-{
- if ((O = iof_setup_buffer(O, buffer, space)) != NULL && space < min) // just allocate min now to avoid further rewriting
- {
- O->buf = O->pos = (uint8_t *)util_malloc(min);
- O->flags |= IOF_BUFFER_ALLOC;
- O->end = O->buf + min;
- }
- return O;
-}
-
-iof * iof_buffer_create (size_t space)
-{
- uint8_t *buffer;
- iof *O;
- space += sizeof(iof);
- buffer = util_malloc(space);
- if ((O = iof_setup_buffer(NULL, buffer, space)) != NULL)
- O->flags |= IOF_ALLOC;
- return O;
-}
-
-/* set/get */
-
-int iof_getc (iof *I)
-{
- if (iof_readable(I))
- return *I->pos++;
- return IOFEOF;
-}
-
-int iof_putc (iof *O, int u)
-{
- if (iof_writable(O))
- {
- iof_set(O, u);
- return (uint8_t)u;
- }
- return IOFFULL;
-}
-
-size_t iof_skip (iof *I, size_t bytes)
-{
- while (bytes)
- {
- if (iof_readable(I))
- ++I->pos;
- else
- break;
- --bytes;
- }
- return bytes;
-}
-
-/* from iof to iof */
-
-iof_status iof_pass (iof *I, iof *O)
-{
- size_t leftin, leftout;
- if ((leftin = iof_left(I)) == 0)
- leftin = iof_input(I);
- while (leftin)
- {
- if ((leftout = iof_left(O)) == 0)
- if ((leftout = iof_output(O)) == 0)
- return IOFFULL;
- while (leftin > leftout)
- {
- memcpy(O->pos, I->pos, leftout);
- I->pos += leftout;
- O->pos = O->end; /* eq. += leftout */
- leftin -= leftout;
- if ((leftout = iof_output(O)) == 0)
- return IOFFULL;
- }
- if (leftin)
- {
- memcpy(O->pos, I->pos, leftin);
- I->pos = I->end; /* eq. += leftin */
- O->pos += leftin;
- }
- leftin = iof_input(I);
- }
- return IOFEOF;
-}
-
-/* read n-bytes */
-
-size_t iof_read (iof *I, void *to, size_t size)
-{
- size_t leftin, done = 0;
- char *s = (char *)to;
-
- if ((leftin = iof_left(I)) == 0)
- if ((leftin = iof_input(I)) == 0)
- return done;
- while (size > leftin)
- {
- memcpy(s, I->pos, leftin * sizeof(uint8_t));
- size -= leftin;
- done += leftin;
- s += leftin;
- I->pos = I->end;
- if ((leftin = iof_input(I)) == 0)
- return done;
- }
- if (size)
- {
- memcpy(s, I->pos, size * sizeof(uint8_t));
- I->pos += size;
- done += size;
- }
- return done;
-}
-
-/* rewrite FILE content (use fseek if needed) */
-
-size_t iof_write_file_handle (iof *O, FILE *file)
-{
- size_t leftout, size, readout;
- if ((leftout = iof_left(O)) == 0)
- if ((leftout = iof_output(O)) == 0)
- return 0;
- size = 0;
- do {
- readout = fread(O->pos, 1, leftout, file);
- O->pos += readout;
- size += readout;
- } while(readout == leftout && (leftout = iof_output(O)) > 0);
- return size;
-}
-
-size_t iof_write_file (iof *O, const char *filename)
-{
- FILE *file;
- size_t size;
- if ((file = fopen(filename, "rb")) == NULL)
- return 0;
- size = iof_write_file_handle(O, file);
- fclose(file);
- return size;
-}
-
-size_t iof_write_iofile (iof *O, iof_file *iofile, int savepos)
-{
- long offset;
- size_t size;
- FILE *file;
- if (iofile->flags & IOF_DATA)
- return iof_write(O, iofile->pos, (size_t)(iofile->end - iofile->pos));
- file = iof_file_get_fh(iofile);
- if (savepos)
- {
- offset = ftell(file);
- size = iof_write_file_handle(O, file);
- fseek(file, offset, SEEK_SET);
- return size;
- }
- return iof_write_file_handle(O, file);
-}
-
-/* write n-bytes */
-
-size_t iof_write (iof *O, const void *data, size_t size)
-{
- size_t leftout, done = 0;
- const char *s = (const char *)data;
- if ((leftout = iof_left(O)) == 0)
- if ((leftout = iof_output(O)) == 0)
- return done;
- while (size > leftout)
- {
- memcpy(O->pos, s, leftout * sizeof(uint8_t));
- size -= leftout;
- done += leftout;
- s += leftout;
- O->pos = O->end;
- if ((leftout = iof_output(O)) == 0)
- return done;
- }
- if (size)
- {
- memcpy(O->pos, s, size * sizeof(uint8_t));
- O->pos += size;
- done += size;
- }
- return done;
-}
-
-/* write '\0'-terminated string */
-
-iof_status iof_puts (iof *O, const void *data)
-{
- const char *s = (const char *)data;
- while (*s)
- {
- if (iof_writable(O))
- iof_set(O, *s++);
- else
- return IOFFULL;
- }
- return IOFEOF; // ?
-}
-
-size_t iof_put_string (iof *O, const void *data)
-{
- const char *p, *s = (const char *)data;
- for (p = s; *p != '\0' && iof_writable(O); iof_set(O, *p++));
- return p - s;
-}
-
-/* write byte n-times */
-
-/*
-iof_status iof_repc (iof *O, char c, size_t bytes)
-{
- while (bytes)
- {
- if (iof_writable(O))
- iof_set(O, c);
- else
- return IOFFULL;
- --bytes;
- }
- return IOFEOF; // ?
-}
-*/
-
-size_t iof_repc (iof *O, char c, size_t bytes)
-{
- size_t leftout, todo = bytes;
- if ((leftout = iof_left(O)) == 0)
- if ((leftout = iof_output(O)) == 0)
- return 0;
- while (bytes > leftout)
- {
- memset(O->pos, c, leftout);
- bytes -= leftout;
- O->pos = O->end;
- if ((leftout = iof_output(O)) == 0)
- return todo - bytes;
- }
- if (bytes)
- {
- memset(O->pos, c, bytes);
- O->pos += bytes;
- }
- return todo;
-}
-
-/* putfs */
-
-#define IOF_FMT_SIZE 1024
-
-size_t iof_putfs (iof *O, const char *format, ...)
-{
- static char buffer[IOF_FMT_SIZE];
- va_list args;
- va_start(args, format);
- if (vsnprintf(buffer, IOF_FMT_SIZE, format, args) > 0)
- {
- va_end(args);
- return iof_put_string(O, buffer);
- }
- else
- {
- va_end(args);
- return iof_write(O, buffer, IOF_FMT_SIZE);
- }
-}
-
-/* integer from iof; return 1 on success, 0 otherwise */
-
-int iof_get_int32 (iof *I, int32_t *number)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_intlw (iof *I, intlw_t *number)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_int64 (iof *I, int64_t *number)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_uint32 (iof *I, uint32_t *number)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- return 1;
-}
-
-int iof_get_uintlw (iof *I, uintlw_t *number)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- return 1;
-}
-
-int iof_get_uint64 (iof *I, uint64_t *number)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_integer(I, c, *number);
- return 1;
-}
-
-int iof_get_int32_radix (iof *I, int32_t *number, int radix)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- if (sign) *number = -*number;
- return 1;
-
-}
-
-int iof_get_intlw_radix (iof *I, intlw_t *number, int radix)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_int64_radix (iof *I, int64_t *number, int radix)
-{
- int sign, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_uint32_radix (iof *I, uint32_t *number, int radix)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- return 1;
-}
-
-int iof_get_uintlw_radix (iof *I, uintlw_t *number, int radix)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- return 1;
-}
-
-int iof_get_uint64_radix (iof *I, uint64_t *number, int radix)
-{
- int c = iof_char(I);
- if (!base10_digit(c)) return 0;
- iof_read_radix(I, c, *number, radix);
- return 1;
-}
-
-/* get roman to uint16_t, cf. roman_to_uint16() from utilnumber.c*/
-
-/* todo: some trick in place of this macro horror? */
-
-#define roman1000(c) (c == 'M' || c == 'm')
-#define roman500(c) (c == 'D' || c == 'd')
-#define roman100(c) (c == 'C' || c == 'c')
-#define roman50(c) (c == 'L' || c == 'l')
-#define roman10(c) (c == 'X' || c == 'x')
-#define roman5(c) (c == 'V' || c == 'v')
-#define roman1(c) (c == 'I' || c == 'i')
-
-#define roman100s(I, c) \
- (roman100(c) ? (100 + ((c = iof_next(I), roman100(c)) ? (100 + ((c = iof_next(I), roman100(c)) ? (c = iof_next(I), 100) : 0)) : 0)) : 0)
-#define roman10s(I, c) \
- (roman10(c) ? (10 + ((c = iof_next(I), roman10(c)) ? (10 + ((c = iof_next(I), roman10(c)) ? (c = iof_next(I), 10) : 0)) : 0)) : 0)
-#define roman1s(I, c) \
- (roman1(c) ? (1 + ((c = iof_next(I), roman1(c)) ? (1 + ((c = iof_next(I), roman1(c)) ? (c = iof_next(I), 1) : 0)) : 0)) : 0)
-
-int iof_get_roman (iof *I, uint16_t *number)
-{
- int c;
- /* M */
- for (*number = 0, c = iof_char(I); roman1000(c); *number += 1000, c = iof_next(I));
- /* D C */
- if (roman500(c))
- {
- c = iof_next(I);
- *number += 500 + roman100s(I, c);
- }
- else if (roman100(c))
- {
- c = iof_next(I);
- if (roman1000(c))
- {
- c = iof_next(I);
- *number += 900;
- }
- else if (roman500(c))
- {
- c = iof_next(I);
- *number += 400;
- }
- else
- *number += 100 + roman100s(I, c);
- }
- /* L X */
- if (roman50(c))
- {
- c = iof_next(I);
- *number += 50 + roman10s(I, c);
- }
- else if (roman10(c))
- {
- c = iof_next(I);
- if (roman100(c))
- {
- c = iof_next(I);
- *number += 90;
- }
- else if (roman50(c))
- {
- c = iof_next(I);
- *number += 40;
- }
- else
- *number += 10 + roman10s(I, c);
- }
- /* V I */
- if (roman5(c))
- {
- c = iof_next(I);
- *number += 5 + roman1s(I, c);
- }
- else if (roman1(c))
- {
- c = iof_next(I);
- if (roman10(c))
- {
- c = iof_next(I);
- *number += 9;
- }
- else if (roman5(c))
- {
- c = iof_next(I);
- *number += 4;
- }
- else
- *number += 1 + roman1s(I, c);
- }
- return 1;
-}
-
-/* double from iof; return 1 on success */
-
-int iof_get_double (iof *I, double *number) // cf. string_to_double()
-{
- int sign, exponent10, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- iof_scan_decimal(I, c, *number);
- if (c == '.')
- {
- c = iof_next(I);
- iof_scan_fraction(I, c, *number, exponent10);
- }
- else
- exponent10 = 0;
- if (c == 'e' || c == 'E')
- {
- c = iof_next(I);
- iof_scan_exponent10(I, c, exponent10);
- }
- double_exp10(*number, exponent10);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_get_float (iof *I, float *number) // cf. string_to_float() in utilnumber.c
-{
- int sign, exponent10, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- iof_scan_decimal(I, c, *number);
- if (c == '.')
- {
- c = iof_next(I);
- iof_scan_fraction(I, c, *number, exponent10);
- }
- else
- exponent10 = 0;
- if (c == 'e' || c == 'E')
- {
- c = iof_next(I);
- iof_scan_exponent10(I, c, exponent10);
- }
- float_exp10(*number, exponent10);
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_conv_double (iof *I, double *number) // cf. convert_to_double() in utilnumber.c
-{
- int sign, exponent10, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- iof_scan_decimal(I, c, *number);
- if (c == '.' || c == ',')
- {
- c = iof_next(I);
- iof_scan_fraction(I, c, *number, exponent10);
- if (exponent10 < 0)
- double_negative_exp10(*number, exponent10);
- }
- if (sign) *number = -*number;
- return 1;
-}
-
-int iof_conv_float (iof *I, float *number) // cf. convert_to_float()
-{
- int sign, exponent10, c = iof_char(I);
- iof_scan_sign(I, c, sign);
- iof_scan_decimal(I, c, *number);
- if (c == '.' || c == ',')
- {
- c = iof_next(I);
- iof_scan_fraction(I, c, *number, exponent10);
- if (exponent10 < 0)
- float_negative_exp10(*number, exponent10);
- }
- if (sign) *number = -*number;
- return 1;
-}
-
-/* integer to iof; return a number of written bytes */
-
-#define iof_copy_number_buffer(O, s, p) for (p = s; *p && iof_writable(O); iof_set(O, *p), ++p)
-
-size_t iof_put_int32 (iof *O, int32_t number)
-{
- const char *s, *p;
- s = int32_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_intlw (iof *O, intlw_t number)
-{
- const char *s, *p;
- s = intlw_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_int64 (iof *O, int64_t number)
-{
- const char *s, *p;
- s = int64_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uint32 (iof *O, uint32_t number)
-{
- const char *s, *p;
- s = uint32_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uintlw (iof *O, uintlw_t number)
-{
- const char *s, *p;
- s = uintlw_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uint64 (iof *O, uint64_t number)
-{
- const char *s, *p;
- s = uint64_to_string(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_int32_radix (iof *O, int32_t number, int radix)
-{
- const char *s, *p;
- s = int32_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_intlw_radix (iof *O, intlw_t number, int radix)
-{
- const char *s, *p;
- s = intlw_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_int64_radix (iof *O, int64_t number, int radix)
-{
- const char *s, *p;
- s = int64_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uint32_radix (iof *O, uint32_t number, int radix)
-{
- const char *s, *p;
- s = uint32_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uintlw_radix (iof *O, uintlw_t number, int radix)
-{
- const char *s, *p;
- s = uintlw_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_uint64_radix (iof *O, uint64_t number, int radix)
-{
- const char *s, *p;
- s = uint64_to_radix(number, radix);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-/* roman numerals */
-
-size_t iof_put_roman_uc (iof *O, uint16_t number)
-{
- const char *s, *p;
- s = uint16_to_roman_uc(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_roman_lc (iof *O, uint16_t number)
-{
- const char *s, *p;
- s = uint16_to_roman_lc(number);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-/* double/float to iof; return the number of written bytes */
-
-size_t iof_put_double (iof *O, double number, int digits)
-{
- const char *s, *p;
- s = double_to_string(number, digits);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-size_t iof_put_float (iof *O, float number, int digits)
-{
- const char *s, *p;
- s = float_to_string(number, digits);
- iof_copy_number_buffer(O, s, p);
- return p - s;
-}
-
-/* iof to binary integer; pretty common */
-
-int iof_get_be_uint2 (iof *I, uint32_t *pnumber)
-{
- int c1, c2;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c1<<8)|c2;
- return 1;
-}
-
-int iof_get_be_uint3 (iof *I, uint32_t *pnumber)
-{
- int c1, c2, c3;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0 || (c3 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c1<<16)|(c2<<8)|c3;
- return 1;
-}
-
-int iof_get_be_uint4 (iof *I, uint32_t *pnumber)
-{
- int c1, c2, c3, c4;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0 || (c3 = iof_get(I)) < 0 || (c4 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c1<<24)|(c2<<16)|(c3<<8)|c4;
- return 1;
-}
-
-int iof_get_le_uint2 (iof *I, uint32_t *pnumber)
-{
- int c1, c2;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c2<<8)|c1;
- return 1;
-}
-
-int iof_get_le_uint3 (iof *I, uint32_t *pnumber)
-{
- int c1, c2, c3;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0 || (c3 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c3<<16)|(c2<<8)|c1;
- return 1;
-}
-
-int iof_get_le_uint4 (iof *I, uint32_t *pnumber)
-{
- int c1, c2, c3, c4;
- if ((c1 = iof_get(I)) < 0 || (c2 = iof_get(I)) < 0 || (c3 = iof_get(I)) < 0 || (c4 = iof_get(I)) < 0)
- return 0;
- *pnumber = (c4<<24)|(c3<<16)|(c2<<8)|c1;
- return 1;
-}
-
-/* iof input data */
-
-uint8_t * iof_file_input_data (iof_file *iofile, size_t *psize, int *isnew)
-{
- uint8_t *data;
- if (iofile->flags & IOF_DATA)
- {
- data = iofile->buf;
- *psize = iofile->end - iofile->buf;
- *isnew = 0;
- return data;
- }
- if (iof_file_reopen(iofile))
- {
- data = iof_copy_file_handle_data(iof_file_get_fh(iofile), psize);
- *isnew = 1;
- iof_file_reclose(iofile);
- return data;
- }
- return NULL;
-}
-
-/*
-uint8_t * iof_file_reader_data (iof_file *iofile, size_t *size)
-{
- uint8_t *data;
- if (!(iofile->flags & IOF_DATA) || iofile->pos == NULL || (*size = (size_t)iof_left(iofile)) == 0)
- return NULL;
- if (iofile->flags & IOF_BUFFER_ALLOC)
- {
- data = iofile->buf; // iofile->pos; // returned must be freeable, makes sense when ->buf == ->pos
- iofile->flags &= ~IOF_BUFFER_ALLOC;
- iofile->buf = iofile->pos = iofile->end = NULL;
- return data;
- }
- data = (uint8_t *)util_malloc(*size);
- memcpy(data, iofile->buf, *size);
- return data;
-}
-
-uint8_t * iof_file_writer_data (iof_file *iofile, size_t *size)
-{
- uint8_t *data;
- if (!(iofile->flags & IOF_DATA) || iofile->buf == NULL || (*size = (size_t)iof_size(iofile)) == 0)
- return NULL;
- if (iofile->flags & IOF_BUFFER_ALLOC)
- {
- iofile->flags &= ~IOF_BUFFER_ALLOC;
- data = iofile->buf;
- iofile->buf = iofile->pos = iofile->end = NULL;
- return data;
- }
- data = (uint8_t *)util_malloc(*size);
- memcpy(data, iofile->buf, *size);
- return data;
-}
-*/
-
-uint8_t * iof_reader_data (iof *I, size_t *psize)
-{
- uint8_t *data;
- *psize = (size_t)iof_left(I);
- if (I->flags & IOF_BUFFER_ALLOC)
- {
- data = I->buf; // actually I->pos, but we have to return something freeable
- I->flags &= ~IOF_BUFFER_ALLOC;
- I->buf = NULL;
- }
- else
- {
- data = util_malloc(*psize);
- memcpy(data, I->pos, *psize);
- }
- iof_close(I);
- return data;
-}
-
-
-uint8_t * iof_writer_data (iof *O, size_t *psize)
-{
- uint8_t *data;
- *psize = (size_t)iof_size(O);
- if (O->flags & IOF_BUFFER_ALLOC)
- {
- data = O->buf;
- O->flags &= ~IOF_BUFFER_ALLOC;
- O->buf = NULL;
- }
- else
- {
- data = util_malloc(*psize);
- memcpy(data, O->buf, *psize);
- }
- iof_close(O);
- return data;
-}
-
-size_t iof_reader_to_file_handle (iof *I, FILE *file)
-{
- size_t size;
- for (size = 0; iof_readable(I); I->pos = I->end)
- size += fwrite(I->buf, sizeof(uint8_t), iof_left(I), file);
- return size;
-}
-
-size_t iof_reader_to_file (iof *I, const char *filename)
-{
- FILE *file;
- size_t size;
- if ((file = fopen(filename, "wb")) == NULL)
- return 0;
- for (size = 0; iof_readable(I); I->pos = I->end)
- size += fwrite(I->buf, sizeof(uint8_t), iof_left(I), file);
- fclose(file);
- return size;
-}
-
-/* debug */
-
-size_t iof_data_to_file (const void *data, size_t size, const char *filename)
-{
- FILE *fh;
- if ((fh = fopen(filename, "wb")) == NULL)
- return 0;
- // size = fwrite(data, size, sizeof(uint8_t), fh); // WRONG, this always returns 1, as fwrite returns the number of elements successfully written out
- size = fwrite(data, sizeof(uint8_t), size, fh);
- fclose(fh);
- return size;
-}
-
-size_t iof_result_to_file_handle (iof *F, FILE *file)
-{
- const void *data;
- size_t size;
- data = iof_result(F, size);
- return iof_data_to_file_handle(data, size, file);
-}
-
-size_t iof_result_to_file (iof *F, const char *filename)
-{
- const void *data;
- size_t size;
- data = iof_result(F, size);
- return iof_data_to_file(data, size, filename);
-}
-
-void iof_debug (iof *I, const char *filename)
-{
- FILE *file = fopen(filename, "wb");
- if (file != NULL)
- {
- fprintf(file, ">>> buf %p <<<\n", I->buf);
- fwrite(I->buf, sizeof(uint8_t), iof_size(I), file);
- fprintf(file, "\n>>> pos %p (%ld) <<<\n", I->pos, (long)iof_size(I));
- fwrite(I->pos, sizeof(uint8_t), iof_left(I), file);
- fprintf(file, "\n>>> end %p (%ld) <<<\n", I->end, (long)iof_left(I));
- fwrite(I->end, sizeof(uint8_t), I->space - iof_space(I), file);
- fprintf(file, "\n>>> end of buffer %p (%ld) <<<\n", I->buf + I->space, (long)(I->buf + I->space - I->end));
- fclose(file);
- }
-}
-
-/* common filters api */
-
-/* sizes of filter states on x64
-size of iof_filter: 640 (no longer used; sizeof(iof) + sizeof larger state)
-size of file_state: 16
-size of stream_state: 16
-size of flate_state: 104
-size of lzw_state: 56
-size of predictor_state: 104
-size of basexx_state: 48
-size of basexx_state: 48
-size of basexx_state: 48
-size of eexec_state: 40
-size of runlength_state: 24
-size of rc4_state: 24
-size of aes_state: 72
-size of img_state: 576
-size of img: 496
-*/
-
-typedef struct iof_heap iof_heap;
-
-struct iof_heap {
- uint8_t *data, *pos;
- size_t size, space;
- iof_heap *next, *prev;
- int refcount;
-};
-
-typedef struct {
- iof_heap *heap;
-} iof_heap_ghost;
-
-static iof_heap * iof_buffers_heap = NULL;
-static iof_heap * iof_filters_heap = NULL;
-
-#define IOF_HEAP_FILTERS_COUNT 4
-#define IOF_BUFFER_SIZE 262144 // (1<<18)
-#define IOF_FILTER_SIZE 1024
-// sizeof(iof_filter) on x64 is now 640, img_state 576, img 496, others 16-104
-#define IOF_BUFFER_HEAP_SIZE (IOF_HEAP_FILTERS_COUNT * (IOF_BUFFER_SIZE + sizeof(iof_heap_ghost)))
-#define IOF_FILTER_HEAP_SIZE (IOF_HEAP_FILTERS_COUNT * (IOF_FILTER_SIZE + sizeof(iof_heap_ghost)))
-
-static iof_heap * iof_heap_new (size_t space)
-{
- iof_heap *iofheap;
- iofheap = (iof_heap *)util_malloc(sizeof(iof_heap) + space);
- iofheap->data = iofheap->pos = (uint8_t *)(iofheap + 1);
- iofheap->size = iofheap->space = space;
- iofheap->next = NULL;
- iofheap->prev = NULL;
- iofheap->refcount = 0;
- return iofheap;
-}
-
-#define iof_heap_free(iofheap) util_free(iofheap)
-
-void iof_filters_init (void)
-{
- if (iof_buffers_heap == NULL)
- iof_buffers_heap = iof_heap_new(IOF_BUFFER_HEAP_SIZE);
- if (iof_filters_heap == NULL)
- iof_filters_heap = iof_heap_new(IOF_FILTER_HEAP_SIZE);
-}
-
-void iof_filters_free (void)
-{
- iof_heap *heap, *next;
- for (heap = iof_buffers_heap; heap != NULL; heap = next)
- {
- next = heap->next;
- if (heap->refcount != 0)
- loggerf("not closed iof filters left (%d)", heap->refcount);
- if (next != NULL)
- loggerf("iof filters heap left");
- iof_heap_free(heap);
- }
- iof_buffers_heap = NULL;
- for (heap = iof_filters_heap; heap != NULL; heap = next)
- {
- next = heap->next;
- if (heap->refcount != 0)
- loggerf("not closed iof buffers left (%d)", heap->refcount);
- if (next != NULL)
- loggerf("iof buffers heap left");
- iof_heap_free(heap);
- }
- iof_filters_heap = NULL;
-}
-
-#define iof_heap_get(hp, ghost, data, siz) \
- (ghost = (iof_heap_ghost *)((hp)->pos), \
- ghost->heap = hp, \
- data = (uint8_t *)(ghost + 1), \
- (hp)->pos += siz, \
- (hp)->size -= siz, \
- ++(hp)->refcount)
-
-
-static void * iof_heap_take (iof_heap **pheap, size_t size)
-{
- uint8_t *data;
- iof_heap_ghost *ghost;
- iof_heap *heap, *newheap, *next;
-
- heap = *pheap;
- size += sizeof(iof_heap_ghost);
- if (heap->size >= size)
- { /* take cheap mem from main heap */
- iof_heap_get(heap, ghost, data, size);
- return data;
- }
- if (size <= heap->space >> 1)
- { /* make new cheap heap, make it front */
- *pheap = newheap = iof_heap_new(heap->space);
- newheap->next = heap;
- heap->prev = newheap;
- iof_heap_get(newheap, ghost, data, size);
- return data;
- }
- /* size much larger than expected? should not happen.
- make a single-item heap, keep the front heap intact. */
- newheap = iof_heap_new(size);
- if ((next = heap->next) != NULL)
- {
- newheap->next = next;
- next->prev = newheap;
- }
- heap->next = newheap;
- newheap->prev = heap;
- iof_heap_get(newheap, ghost, data, size);
- return data;
-}
-
-void iof_heap_back (void *data)
-{
- iof_heap_ghost *ghost;
- iof_heap *heap, *next, *prev;
-
- ghost = ((iof_heap_ghost *)data) - 1;
- heap = ghost->heap;
- if (heap->refcount == 0)
- loggerf("invalid use of iof heap, refcount < 0");
- if (--heap->refcount <= 0)
- {
- if ((prev = heap->prev) != NULL)
- { /* free the heap */
- if ((next = heap->next) != NULL)
- prev->next = next, next->prev = prev;
- else
- prev->next = NULL;
- iof_heap_free(heap);
- }
- else
- { /* this is the front heap, just reset */
- heap->pos = heap->data;
- heap->size = heap->space;
- }
- }
-}
-
-void * iof_filter_new (size_t size)
-{ // to be removed
- void *data;
-
- iof_filters_init();
- data = iof_heap_take(&iof_filters_heap, size);
- return memset(data, 0, size);
-}
-
-static uint8_t * iof_filter_buffer_new (size_t *psize)
-{
- iof_filters_init();
- *psize = IOF_BUFFER_SIZE;
- return iof_heap_take(&iof_buffers_heap, IOF_BUFFER_SIZE);
-}
-
-iof * iof_filter_reader_new (iof_handler handler, size_t statesize, void **pstate)
-{
- iof *F;
- void *filter;
- uint8_t *buffer;
- size_t buffersize;
-
- iof_filters_init();
- filter = iof_heap_take(&iof_filters_heap, sizeof(iof) + statesize);
- F = (iof *)memset(filter, 0, sizeof(iof) + statesize);
- buffer = iof_filter_buffer_new(&buffersize);
- iof_reader_buffer(F, buffer, buffersize);
- F->flags |= IOF_HEAP|IOF_BUFFER_HEAP;
- F->more = handler;
- *pstate = (F + 1);
- return F;
-}
-
-iof * iof_filter_reader_with_buffer_new (iof_handler handler, size_t statesize, void **pstate, void *buffer, size_t buffersize)
-{ // for filters that has own buffer (string, some image filters)
- iof *F;
- void *filter;
- iof_filters_init();
- filter = iof_heap_take(&iof_filters_heap, sizeof(iof) + statesize);
- F = (iof *)memset(filter, 0, sizeof(iof) + statesize);
- iof_reader_buffer(F, buffer, buffersize);
- F->flags |= IOF_HEAP;
- F->more = handler;
- *pstate = (F + 1);
- return F;
-}
-
-iof * iof_filter_writer_new (iof_handler handler, size_t statesize, void **pstate)
-{
- iof *F;
- void *filter;
- uint8_t *buffer;
- size_t buffersize;
-
- iof_filters_init();
- filter = iof_heap_take(&iof_filters_heap, sizeof(iof) + statesize);
- F = (iof *)memset(filter, 0, sizeof(iof) + statesize);
- buffer = iof_filter_buffer_new(&buffersize);
- iof_writer_buffer(F, buffer, buffersize);
- F->flags |= IOF_HEAP|IOF_BUFFER_HEAP;
- F->more = handler;
- *pstate = (F + 1);
- return F;
-}
-
-iof * iof_filter_writer_with_buffer_new (iof_handler handler, size_t statesize, void **pstate, void *buffer, size_t size)
-{
- iof *F;
- void *filter;
- size_t buffersize;
-
- iof_filters_init();
- filter = iof_heap_take(&iof_filters_heap, sizeof(iof) + statesize);
- F = (iof *)memset(filter, 0, sizeof(iof) + statesize);
- buffer = iof_filter_buffer_new(&buffersize);
- iof_writer_buffer(F, buffer, buffersize);
- F->flags |= IOF_HEAP;
- F->more = handler;
- *pstate = (F + 1);
- return F;
-}
-
-/* close */
-
-#define iof_close_next(F) ((void)(iof_decref((F)->next), (F)->next = NULL, 0))
-/* when filter creation fails, we should take care to destroy the filter but leave ->next intact */
-#define iof_clear_next(F) ((void)(iof_unref((F)->next), (F)->next = NULL, 0))
-
-#define iof_close_buffer(F) ((void)\
- ((F)->buf != NULL ? \
- ((F->flags & IOF_BUFFER_ALLOC) ? (util_free((F)->buf), (F)->buf = NULL, 0) : \
- ((F->flags & IOF_BUFFER_HEAP) ? (iof_filter_buffer_free((F)->buf), (F)->buf = NULL, 0) : ((F)->buf = NULL, 0))) : 0))
-
-/* closing underlying file handle */
-
-static void iof_close_file (iof *F)
-{
- FILE *file;
- //if (F->flags & IOF_FILE_HANDLE)
- //{
- if ((file = F->file) != NULL)
- {
- if (F->flags & IOF_CLOSE_FILE)
- fclose(F->file);
- F->file = NULL;
- }
- //}
-}
-
-/* a very special variant for reader filters initiated with iof_file_reopen(). It also calls
- iof_file_reclose(), which takes an effect only if previously reopened, but better to keep
- all this thin ice separated. Used in filters: iofile_reader, iofile_stream_reader, image
- decoders. */
-
-static void iof_close_iofile (iof *F)
-{
- iof_file *iofile;
- //if (F->flags & IOF_FILE)
- //{
- if ((iofile = F->iofile) != NULL)
- {
- iof_file_unsync(iofile, NULL);
- iof_file_reclose(iofile); // takes an effect iff prevoiusly reopened
- iof_file_decref(iofile);
- F->iofile = NULL;
- }
- //}
-}
-
-void iof_free (iof *F)
-{
- if (F->flags & IOF_FILE_HANDLE)
- iof_close_file(F);
- else if (F->flags & IOF_FILE)
- iof_close_iofile(F);
- else if (F->flags & IOF_NEXT)
- iof_close_next(F);
- iof_close_buffer(F);
- if (F->flags & IOF_HEAP)
- iof_filter_free(F);
- else if (F->flags & IOF_ALLOC)
- util_free(F);
-}
-
-void iof_discard (iof *F)
-{ // so far used only on failed filters creation; as iof_free() but don't dare to release ->next
- if (F->flags & IOF_FILE_HANDLE)
- iof_close_file(F);
- else if (F->flags & IOF_FILE)
- iof_close_iofile(F);
- else if (F->flags & IOF_NEXT)
- iof_close_next(F);
- iof_close_buffer(F);
- if (F->flags & IOF_HEAP)
- iof_filter_free(F);
- else if (F->flags & IOF_ALLOC)
- util_free(F);
-}
-
-/* resizing buffer */
-
-size_t iof_resize_buffer_to (iof *O, size_t space)
-{
- uint8_t *buf;
-
- if (O->flags & IOF_BUFFER_ALLOC)
- {
- buf = (uint8_t *)util_realloc(O->buf, space);
- }
- else
- {
- buf = (uint8_t *)util_malloc(space);
- memcpy(buf, O->buf, iof_size(O));
- if (O->flags & IOF_BUFFER_HEAP)
- {
- iof_filter_buffer_free(O->buf);
- O->flags &= ~IOF_BUFFER_HEAP;
- }
- O->flags |= IOF_BUFFER_ALLOC;
-
- }
- O->pos = buf + iof_size(O);
- O->end = buf + space;
- O->buf = buf;
- O->space = space;
- return iof_left(O);
-}
-
-/* */
-
-size_t iof_decoder_retval (iof *I, const char *type, iof_status status)
-{
- switch (status)
- {
- case IOFERR:
- case IOFEMPTY: // should never happen as we set state.flush = 1 on decoders init
- loggerf("%s decoder error (%d, %s)", type, status, iof_status_kind(status));
- I->flags |= IOF_STOPPED;
- return 0;
- case IOFEOF: // this is the last chunk,
- I->flags |= IOF_STOPPED; // so stop it and fall
- case IOFFULL: // prepare pointers to read from I->buf
- I->end = I->pos;
- I->pos = I->buf;
- return I->end - I->buf;
- }
- loggerf("%s decoder bug, invalid retval %d", type, status);
- return 0;
-}
-
-size_t iof_encoder_retval (iof *O, const char *type, iof_status status)
-{
- switch (status)
- {
- case IOFERR:
- case IOFFULL:
- loggerf("%s encoder error (%d, %s)", type, status, iof_status_kind(status));
- return 0;
- case IOFEMPTY:
- O->pos = O->buf;
- O->end = O->buf + O->space;
- return O->space;
- case IOFEOF:
- return 0;
- }
- loggerf("%s encoder bug, invalid retval %d", type, status);
- return 0;
-}
-
-/* file/stream state */
-
-typedef struct {
- size_t length;
- size_t offset;
-} file_state;
-
-
-#define file_state_init(state, off, len) ((state)->offset = off, (state)->length = len)
-
-typedef struct {
- size_t length;
- size_t offset;
-} stream_state;
-
-#define stream_state_init(state, off, len) ((state)->offset = off, (state)->length = len)
-
-static size_t file_read (iof *I)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED)
- return 0;
- tail = iof_tail(I);
- if ((bytes = tail + fread(I->buf + tail, sizeof(uint8_t), I->space - tail, I->file)) < I->space)
- I->flags |= IOF_STOPPED;
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t iofile_read (iof *I, size_t *poffset)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED)
- return 0;
- iof_file_sync(I->iofile, poffset);
- tail = iof_tail(I);
- if ((bytes = tail + iof_file_read(I->buf + tail, sizeof(uint8_t), I->space - tail, I->iofile)) < I->space)
- {
- I->flags |= IOF_STOPPED;
- iof_file_unsync(I->iofile, poffset);
- }
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t file_load (iof *I)
-{
- size_t bytes, left, tail;
- if (I->flags & IOF_STOPPED)
- return 0;
- tail = iof_tail(I);
- I->pos = I->buf + tail;
- I->end = I->buf + I->space; /* don't assume its done when initializing the filter */
- left = I->space - tail;
- do {
- bytes = fread(I->pos, sizeof(uint8_t), left, I->file);
- I->pos += bytes;
- } while (bytes == left && (left = iof_resize_buffer(I)) > 0);
- I->flags |= IOF_STOPPED;
- return iof_loaded(I);
-}
-
-static size_t iofile_load (iof *I, size_t *poffset)
-{
- size_t bytes, left, tail;
- if (I->flags & IOF_STOPPED)
- return 0;
- tail = iof_tail(I);
- I->pos = I->buf + tail;
- I->end = I->buf + I->space; /* don't assume its done when initializing the filter */
- left = I->space - tail;
- iof_file_sync(I->iofile, poffset);
- do {
- bytes = iof_file_read(I->pos, sizeof(uint8_t), left, I->iofile);
- I->pos += bytes;
- } while (bytes == left && (left = iof_resize_buffer(I)) > 0);
- I->flags |= IOF_STOPPED;
- iof_file_unsync(I->iofile, poffset);
- return iof_loaded(I);
-}
-
-static size_t filter_file_reader (iof *I, iof_mode mode)
-{
- switch (mode)
- {
- case IOFREAD:
- return file_read(I);
- case IOFLOAD:
- return file_load(I);
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-static size_t filter_iofile_reader (iof *I, iof_mode mode)
-{
- file_state *state;
- state = iof_filter_state(file_state *, I);
- switch (mode)
- {
- case IOFREAD:
- return iofile_read(I, &state->offset);
- case IOFLOAD:
- return iofile_load(I, &state->offset);
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-static size_t file_write (iof *O, int flush)
-{
- size_t bytes;
- if ((bytes = iof_size(O)) > 0)
- if (bytes != fwrite(O->buf, sizeof(uint8_t), bytes, O->file))
- return 0;
- if (flush)
- fflush(O->file);
- O->end = O->buf + O->space; // remains intact actually
- O->pos = O->buf;
- return O->space;
-}
-
-static size_t iofile_write (iof *O, size_t *poffset, int flush)
-{
- size_t bytes;
- iof_file_sync(O->iofile, poffset);
- if ((bytes = iof_size(O)) > 0)
- {
- if (bytes != iof_file_write(O->buf, sizeof(uint8_t), bytes, O->iofile))
- {
- iof_file_unsync(O->iofile, poffset);
- return 0;
- }
- }
- if (flush)
- iof_file_flush(O->iofile);
- O->end = O->buf + O->space; // remains intact actually
- O->pos = O->buf;
- return O->space;
-}
-
-static size_t filter_file_writer (iof *O, iof_mode mode)
-{
- switch (mode)
- {
- case IOFWRITE:
- return file_write(O, 0);
- case IOFFLUSH:
- return file_write(O, 1);
- case IOFCLOSE:
- file_write(O, 1);
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-static size_t filter_iofile_writer (iof *O, iof_mode mode)
-{
- file_state *state;
- state = iof_filter_state(file_state *, O);
- switch (mode)
- {
- case IOFWRITE:
- return iofile_write(O, &state->offset, 0);
- case IOFFLUSH:
- return iofile_write(O, &state->offset, 1);
- case IOFCLOSE:
- iofile_write(O, &state->offset, 1);
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-/* filter from FILE* */
-
-iof * iof_filter_file_handle_reader (FILE *file)
-{
- iof *I;
- file_state *state;
- if (file == NULL)
- return NULL;
- I = iof_filter_reader(filter_file_reader, sizeof(file_state), &state);
- iof_setup_file(I, file);
- file_state_init(state, 0, 0);
- return I;
-}
-
-iof * iof_filter_file_handle_writer (FILE *file)
-{
- iof *O;
- file_state *state;
- if (file == NULL)
- return NULL;
- O = iof_filter_writer(filter_file_writer, sizeof(file_state), &state);
- iof_setup_file(O, file);
- file_state_init(state, 0, 0);
- return O;
-}
-
-/* filter from iof_file * */
-
-iof * iof_filter_iofile_reader (iof_file *iofile, size_t offset)
-{
- iof *I;
- file_state *state;
- if (!iof_file_reopen(iofile))
- return NULL;
- I = iof_filter_reader(filter_iofile_reader, sizeof(file_state), &state);
- iof_setup_iofile(I, iofile);
- file_state_init(state, offset, 0);
- return I;
-}
-
-iof * iof_filter_iofile_writer (iof_file *iofile, size_t offset)
-{
- iof *O;
- file_state *state;
- O = iof_filter_writer(filter_iofile_writer, sizeof(file_state), &state);
- iof_setup_iofile(O, iofile);
- file_state_init(state, offset, 0);
- return O;
-}
-
-/* filter from filename */
-
-iof * iof_filter_file_reader (const char *filename)
-{
- iof *I;
- file_state *state;
- FILE *file;
- if ((file = fopen(filename, "rb")) == NULL)
- return NULL;
- I = iof_filter_reader(filter_file_reader, sizeof(file_state), &state);
- iof_setup_file(I, file);
- file_state_init(state, 0, 0);
- I->flags |= IOF_CLOSE_FILE;
- return I;
-}
-
-iof * iof_filter_file_writer (const char *filename)
-{
- iof *O;
- file_state *state;
- FILE *file;
- if ((file = fopen(filename, "wb")) == NULL)
- return NULL;
- O = iof_filter_writer(filter_file_writer, sizeof(file_state), &state);
- iof_setup_file(O, file);
- file_state_init(state, 0, 0);
- O->flags |= IOF_CLOSE_FILE;
- return O;
-}
-
-/* from string */
-
-static size_t dummy_handler (iof *I, iof_mode mode)
-{
- switch (mode)
- {
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_filter_string_reader (const void *s, size_t length)
-{
- iof *I;
- void *dummy;
- I = iof_filter_reader_with_buffer(dummy_handler, 0, &dummy, NULL, 0);
- I->rbuf = I->rpos = (const uint8_t *)s;
- I->rend = (const uint8_t *)s + length;
- // I->space = length;
- return I;
-}
-
-iof * iof_filter_string_writer (const void *s, size_t length)
-{
- iof *O;
- void *dummy;
- O = iof_filter_reader_with_buffer(dummy_handler, 0, &dummy, NULL, 0);
- O->rbuf = O->rpos = (const uint8_t *)s;
- O->rend = (const uint8_t *)s + length;
- // O->space = length;
- return O;
-}
-
-iof * iof_filter_buffer_writer (size_t size)
-{ // filter alternative of iof_buffer_create()
- iof *O;
- void *dummy;
- uint8_t *buffer;
- if (size > IOF_BUFFER_SIZE)
- {
- buffer = (uint8_t *)util_malloc(size);
- O = iof_filter_writer_with_buffer(iof_mem_handler, 0, &dummy, buffer, size);
- O->flags |= IOF_BUFFER_ALLOC;
- return O;
- }
- return iof_filter_writer(iof_mem_handler, 0, &dummy);
-}
-
-/* stream */
-
-static size_t file_stream_read (iof *I, size_t *plength)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED || *plength == 0)
- return 0;
- tail = iof_tail(I);
- if (I->space - tail >= *plength)
- {
- bytes = tail + fread(I->buf + tail, sizeof(uint8_t), *plength, I->file);
- I->flags |= IOF_STOPPED;
- *plength = 0;
- }
- else
- {
- bytes = tail + fread(I->buf + tail, sizeof(uint8_t), I->space - tail, I->file);
- *plength -= bytes - tail;
- }
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t iofile_stream_read (iof *I, size_t *plength, size_t *poffset)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED || *plength == 0)
- return 0;
- tail = iof_tail(I);
- iof_file_sync(I->iofile, poffset);
- if (I->space - tail >= *plength)
- {
- bytes = tail + iof_file_read(I->buf + tail, sizeof(uint8_t), *plength, I->iofile);
- iof_file_unsync(I->iofile, poffset);
- I->flags |= IOF_STOPPED;
- *plength = 0;
- }
- else
- {
- bytes = tail + iof_file_read(I->buf + tail, sizeof(uint8_t), I->space - tail, I->iofile);
- *plength -= bytes - tail;
- }
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t file_stream_load (iof *I, size_t *plength)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED || *plength == 0)
- return 0;
- tail = iof_tail(I);
- if (I->space - tail < *plength)
- if (iof_resize_buffer_to(I, tail + *plength) == 0)
- return 0;
- bytes = tail + fread(I->buf + tail, sizeof(uint8_t), *plength, I->file);
- I->flags |= IOF_STOPPED;
- *plength = 0;
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t iofile_stream_load (iof *I, size_t *plength, size_t *poffset)
-{
- size_t bytes, tail;
- if (I->flags & IOF_STOPPED || *plength == 0)
- return 0;
- iof_file_sync(I->iofile, poffset);
- tail = iof_tail(I);
- if (I->space - tail < *plength)
- if (iof_resize_buffer_to(I, tail + *plength) == 0)
- return 0;
- bytes = tail + iof_file_read(I->buf + tail, sizeof(uint8_t), *plength, I->iofile);
- iof_file_unsync(I->iofile, poffset);
- I->flags |= IOF_STOPPED;
- *plength = 0;
- I->pos = I->buf;
- I->end = I->buf + bytes;
- return bytes;
-}
-
-static size_t filter_file_stream_reader (iof *I, iof_mode mode)
-{
- stream_state *state;
- state = iof_filter_state(stream_state *, I);
- switch(mode)
- {
- case IOFREAD:
- return file_stream_read(I, &state->length);
- case IOFLOAD:
- return file_stream_load(I, &state->length);
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-static size_t filter_iofile_stream_reader (iof *I, iof_mode mode)
-{
- stream_state *state;
- state = iof_filter_state(stream_state *, I);
- switch(mode)
- {
- case IOFREAD:
- return iofile_stream_read(I, &state->length, &state->offset);
- case IOFLOAD:
- return iofile_stream_load(I, &state->length, &state->offset);
- case IOFCLOSE:
- iof_free(I);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_filter_stream_reader (FILE *file, size_t offset, size_t length)
-{
- iof *I;
- stream_state *state;
- I = iof_filter_reader(filter_file_stream_reader, sizeof(stream_state), &state);
- iof_setup_file(I, file);
- stream_state_init(state, offset, length);
- fseek(file, (long)offset, SEEK_SET); // or perhaps it should be call in file_stream_read(), like iof_file_sync()?
- return I;
-}
-
-iof * iof_filter_stream_coreader (iof_file *iofile, size_t offset, size_t length)
-{
- iof *I;
- stream_state *state;
- if (!iof_file_reopen(iofile))
- return NULL;
- I = iof_filter_reader(filter_iofile_stream_reader, sizeof(stream_state), &state);
- iof_setup_iofile(I, iofile);
- stream_state_init(state, offset, length);
- return I;
-}
-
-static size_t file_stream_write (iof *O, size_t *plength, int flush)
-{
- size_t bytes;
- if ((bytes = iof_size(O)) > 0)
- {
- if (bytes != fwrite(O->buf, sizeof(uint8_t), bytes, O->file))
- {
- *plength += bytes;
- return 0;
- }
- }
- if (flush)
- fflush(O->file);
- *plength += bytes;
- O->end = O->buf + O->space; // remains intact
- O->pos = O->buf;
- return O->space;
-}
-
-static size_t iofile_stream_write (iof *O, size_t *plength, size_t *poffset, int flush)
-{
- size_t bytes;
- if ((bytes = iof_size(O)) > 0)
- {
- iof_file_sync(O->iofile, poffset);
- if (bytes != iof_file_write(O->buf, sizeof(uint8_t), bytes, O->iofile))
- {
- *plength += bytes;
- iof_file_unsync(O->iofile, poffset);
- return 0;
- }
- }
- if (flush)
- iof_file_flush(O->iofile);
- *plength += bytes;
- O->end = O->buf + O->space; // remains intact
- O->pos = O->buf;
- return O->space;
-}
-
-static size_t filter_file_stream_writer (iof *O, iof_mode mode)
-{
- stream_state *state;
- state = iof_filter_state(stream_state *, O);
- switch (mode)
- {
- case IOFWRITE:
- return file_stream_write(O, &state->length, 0);
- case IOFFLUSH:
- return file_stream_write(O, &state->length, 1);
- case IOFCLOSE:
- file_stream_write(O, &state->length, 1);
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-static size_t filter_iofile_stream_writer (iof *O, iof_mode mode)
-{
- stream_state *state;
- state = iof_filter_state(stream_state *, O);
- switch (mode)
- {
- case IOFWRITE:
- return iofile_stream_write(O, &state->length, &state->offset, 0);
- case IOFFLUSH:
- return iofile_stream_write(O, &state->length, &state->offset, 1);
- case IOFCLOSE:
- iofile_stream_write(O, &state->length, &state->offset, 1);
- iof_free(O);
- return 0;
- default:
- return 0;
- }
-}
-
-iof * iof_filter_stream_writer (FILE *file)
-{
- iof *O;
- stream_state *state;
- O = iof_filter_writer(filter_file_stream_writer, sizeof(stream_state), &state);
- iof_setup_file(O, file);
- stream_state_init(state, 0, 0);
- return O;
-}
-
-iof * iof_filter_stream_cowriter (iof_file *iofile, size_t offset)
-{
- iof *O;
- stream_state *state;
- O = iof_filter_writer(filter_iofile_stream_writer, sizeof(stream_state), &state);
- iof_setup_iofile(O, iofile);
- stream_state_init(state, offset, 0);
- return O;
-}
-
-/* very specific for images; get input from already created strem filter, exchange the filter but keep the buffer */
-
-FILE * iof_filter_file_reader_source (iof *I, size_t *poffset, size_t *plength)
-{
- stream_state *sstate;
- file_state *fstate;
- if (I->more == filter_file_stream_reader) // I is the result of iof_filter_stream_reader()
- {
- sstate = iof_filter_state(stream_state *, I);
- *poffset = sstate->offset;
- *plength = sstate->length; // might be 0 but it is ok for file readers
- return I->file;
- }
- if (I->more == filter_file_reader)
- {
- fstate = iof_filter_state(file_state *, I);
- *poffset = fstate->offset;
- *plength = fstate->length; // might be 0 but it is ok for file readers
- return I->file;
- }
- return NULL;
-}
-
-iof_file * iof_filter_file_coreader_source (iof *I, size_t *poffset, size_t *plength)
-{
- stream_state *sstate;
- file_state *fstate;
- if (I->more == filter_iofile_stream_reader) // I is the result of iof_filter_stream_coreader()
- {
- sstate = iof_filter_state(stream_state *, I);
- *poffset = sstate->offset;
- *plength = sstate->length;
- return I->iofile;
- }
- if (I->more == filter_iofile_reader)
- {
- fstate = iof_filter_state(file_state *, I);
- *poffset = fstate->offset;
- *plength = fstate->length;
- return I->iofile;
- }
- return NULL;
-}
-
-iof * iof_filter_reader_replacement (iof *P, iof_handler handler, size_t statesize, void **pstate)
-{ // called after iof_filter_file_reader_source(), no need to check if F is filter from iof heap and if has buffer from iof heap
- iof *F;
- F = iof_filter_reader_with_buffer(handler, statesize, pstate, P->buf, P->space);
- F->flags |= IOF_BUFFER_HEAP;
- //iof_reader_buffer(P, NULL, 0);
- //P->flags &= ~IOF_BUFFER_HEAP;
- iof_filter_free(P);
- return F;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Deleted: trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c-OK
===================================================================
--- trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c-OK 2018-09-05 21:32:42 UTC (rev 48592)
+++ trunk/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c-OK 2018-09-05 21:35:27 UTC (rev 48593)
@@ -1,1198 +0,0 @@
-/* sha2 implementation by Aaron D. Gifford (http://www.aarongifford.com) */
-
-#define BYTE_ORDER LITTLE_ENDIAN
-
-/* begin of sha2.c */
-
-/*
- * FILE: sha2.c
- * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
- *
- * Copyright (c) 2000-2001, Aaron D. Gifford
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the copyright holder nor the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
- */
-
-#include <string.h> /* memcpy()/memset() or bcopy()/bzero() */
-#include <assert.h> /* assert() */
-//#include "sha2.h"
-#include "utilsha.h"
-
-/*
- * ASSERT NOTE:
- * Some sanity checking code is included using assert(). On my FreeBSD
- * system, this additional code can be removed by compiling with NDEBUG
- * defined. Check your own systems manpage on assert() to see how to
- * compile WITHOUT the sanity checking code on your system.
- *
- * UNROLLED TRANSFORM LOOP NOTE:
- * You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform
- * loop version for the hash transform rounds (defined using macros
- * later in this file). Either define on the command line, for example:
- *
- * cc -DSHA2_UNROLL_TRANSFORM -o sha2 sha2.c sha2prog.c
- *
- * or define below:
- *
- * #define SHA2_UNROLL_TRANSFORM
- *
- */
-
-
-/*** SHA-256/384/512 Machine Architecture Definitions *****************/
-/*
- * BYTE_ORDER NOTE:
- *
- * Please make sure that your system defines BYTE_ORDER. If your
- * architecture is little-endian, make sure it also defines
- * LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are
- * equivilent.
- *
- * If your system does not define the above, then you can do so by
- * hand like this:
- *
- * #define LITTLE_ENDIAN 1234
- * #define BIG_ENDIAN 4321
- *
- * And for little-endian machines, add:
- *
- * #define BYTE_ORDER LITTLE_ENDIAN
- *
- * Or for big-endian machines:
- *
- * #define BYTE_ORDER BIG_ENDIAN
- *
- * The FreeBSD machine this was written on defines BYTE_ORDER
- * appropriately by including <sys/types.h> (which in turn includes
- * <machine/endian.h> where the appropriate definitions are actually
- * made).
- */
-#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
-#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
-#endif
-
-/*
- * Define the followingsha2_* types to types of the correct length on
- * the native archtecture. Most BSD systems and Linux define u_intXX_t
- * types. Machines with very recent ANSI C headers, can use the
- * uintXX_t definintions from inttypes.h by defining SHA2_USE_INTTYPES_H
- * during compile or in the sha.h header file.
- *
- * Machines that support neither u_intXX_t nor inttypes.h's uintXX_t
- * will need to define these three typedefs below (and the appropriate
- * ones in sha.h too) by hand according to their system architecture.
- *
- * Thank you, Jun-ichiro itojun Hagino, for suggesting using u_intXX_t
- * types and pointing out recent ANSI C support for uintXX_t in inttypes.h.
- *
- * PJ: replace by uintX_t
- */
-
-//typedef uint8_t sha2_byte; /* Exactly 1 byte */
-//typedef uint32_t sha2_word32; /* Exactly 4 bytes */
-//typedef uint64_t sha2_word64; /* Exactly 8 bytes */
-
-/*** SHA-256/384/512 Various Length Definitions ***********************/
-/* NOTE: Most of these are in sha2.h */
-#define SHA256_SHORT_BLOCK_LENGTH (SHA256_BLOCK_LENGTH - 8)
-#define SHA384_SHORT_BLOCK_LENGTH (SHA384_BLOCK_LENGTH - 16)
-#define SHA512_SHORT_BLOCK_LENGTH (SHA512_BLOCK_LENGTH - 16)
-
-
-/*** ENDIAN REVERSAL MACROS *******************************************/
-#if BYTE_ORDER == LITTLE_ENDIAN
-#define REVERSE32(w,x) { \
- uint32_t tmp = (w); \
- tmp = (tmp >> 16) | (tmp << 16); \
- (x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \
-}
-#define REVERSE64(w,x) { \
- uint64_t tmp = (w); \
- tmp = (tmp >> 32) | (tmp << 32); \
- tmp = ((tmp & 0xff00ff00ff00ff00ULL) >> 8) | \
- ((tmp & 0x00ff00ff00ff00ffULL) << 8); \
- (x) = ((tmp & 0xffff0000ffff0000ULL) >> 16) | \
- ((tmp & 0x0000ffff0000ffffULL) << 16); \
-}
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
-
-/*
- * Macro for incrementally adding the unsigned 64-bit integer n to the
- * unsigned 128-bit integer (represented using a two-element array of
- * 64-bit words):
- */
-#define ADDINC128(w,n) { \
- (w)[0] += (uint64_t)(n); \
- if ((w)[0] < (n)) { \
- (w)[1]++; \
- } \
-}
-
-/*
- * Macros for copying blocks of memory and for zeroing out ranges
- * of memory. Using these macros makes it easy to switch from
- * using memset()/memcpy() and using bzero()/bcopy().
- *
- * Please define either SHA2_USE_MEMSET_MEMCPY or define
- * SHA2_USE_BZERO_BCOPY depending on which function set you
- * choose to use:
- */
-#if !defined(SHA2_USE_MEMSET_MEMCPY) && !defined(SHA2_USE_BZERO_BCOPY)
-/* Default to memset()/memcpy() if no option is specified */
-#define SHA2_USE_MEMSET_MEMCPY 1
-#endif
-#if defined(SHA2_USE_MEMSET_MEMCPY) && defined(SHA2_USE_BZERO_BCOPY)
-/* Abort with an error if BOTH options are defined */
-#error Define either SHA2_USE_MEMSET_MEMCPY or SHA2_USE_BZERO_BCOPY, not both!
-#endif
-
-#ifdef SHA2_USE_MEMSET_MEMCPY
-#define MEMSET_BZERO(p,l) memset((p), 0, (l))
-#define MEMCPY_BCOPY(d,s,l) memcpy((d), (s), (l))
-#endif
-#ifdef SHA2_USE_BZERO_BCOPY
-#define MEMSET_BZERO(p,l) bzero((p), (l))
-#define MEMCPY_BCOPY(d,s,l) bcopy((s), (d), (l))
-#endif
-
-
-/*** THE SIX LOGICAL FUNCTIONS ****************************************/
-/*
- * Bit shifting and rotation (used by the six SHA-XYZ logical functions:
- *
- * NOTE: The naming of R and S appears backwards here (R is a SHIFT and
- * S is a ROTATION) because the SHA-256/384/512 description document
- * (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this
- * same "backwards" definition.
- */
-/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */
-#define R(b,x) ((x) >> (b))
-/* 32-bit Rotate-right (used in SHA-256): */
-#define S32(b,x) (((x) >> (b)) | ((x) << (32 - (b))))
-/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */
-#define S64(b,x) (((x) >> (b)) | ((x) << (64 - (b))))
-
-/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */
-#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
-#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
-
-/* Four of six logical functions used in SHA-256: */
-#define Sigma0_256(x) (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x)))
-#define Sigma1_256(x) (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x)))
-#define sigma0_256(x) (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x)))
-#define sigma1_256(x) (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x)))
-
-/* Four of six logical functions used in SHA-384 and SHA-512: */
-#define Sigma0_512(x) (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
-#define Sigma1_512(x) (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
-#define sigma0_512(x) (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x)))
-#define sigma1_512(x) (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x)))
-
-/*** INTERNAL FUNCTION PROTOTYPES *************************************/
-/* NOTE: These should not be accessed directly from outside this
- * library -- they are intended for private internal visibility/use
- * only.
- */
-static void SHA512_Last(SHA512_CTX*);
-static void SHA256_Transform(SHA256_CTX*, const uint32_t*);
-static void SHA512_Transform(SHA512_CTX*, const uint64_t*);
-
-
-/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
-/* Hash constant words K for SHA-256: */
-static const uint32_t K256[64] = {
- 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
- 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
- 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
- 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
- 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
- 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
- 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
- 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
- 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
- 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
- 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
- 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
- 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
- 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
- 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
- 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
-};
-
-/* Initial hash value H for SHA-256: */
-static const uint32_t sha256_initial_hash_value[8] = {
- 0x6a09e667UL,
- 0xbb67ae85UL,
- 0x3c6ef372UL,
- 0xa54ff53aUL,
- 0x510e527fUL,
- 0x9b05688cUL,
- 0x1f83d9abUL,
- 0x5be0cd19UL
-};
-
-/* Hash constant words K for SHA-384 and SHA-512: */
-static const uint64_t K512[80] = {
- 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
- 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
- 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
- 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
- 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
- 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
- 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
- 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
- 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
- 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
- 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
- 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
- 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
- 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
- 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
- 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
- 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
- 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
- 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
- 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
- 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
- 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
- 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
- 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
- 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
- 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
- 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
- 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
- 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
- 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
- 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
- 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
- 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
- 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
- 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
- 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
- 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
- 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
- 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
- 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
-};
-
-/* Initial hash value H for SHA-384 */
-static const uint64_t sha384_initial_hash_value[8] = {
- 0xcbbb9d5dc1059ed8ULL,
- 0x629a292a367cd507ULL,
- 0x9159015a3070dd17ULL,
- 0x152fecd8f70e5939ULL,
- 0x67332667ffc00b31ULL,
- 0x8eb44a8768581511ULL,
- 0xdb0c2e0d64f98fa7ULL,
- 0x47b5481dbefa4fa4ULL
-};
-
-/* Initial hash value H for SHA-512 */
-static const uint64_t sha512_initial_hash_value[8] = {
- 0x6a09e667f3bcc908ULL,
- 0xbb67ae8584caa73bULL,
- 0x3c6ef372fe94f82bULL,
- 0xa54ff53a5f1d36f1ULL,
- 0x510e527fade682d1ULL,
- 0x9b05688c2b3e6c1fULL,
- 0x1f83d9abfb41bd6bULL,
- 0x5be0cd19137e2179ULL
-};
-
-/*
- * Constant used by SHA256/384/512_End() functions for converting the
- * digest to a readable hexadecimal character string:
- */
-
-//static const char *sha2_hex_digits = "0123456789abcdef"; // PJ
-
-
-/*** SHA-256: *********************************************************/
-static void SHA256_Init(SHA256_CTX* context) {
- if (context == (SHA256_CTX*)0) {
- return;
- }
- MEMCPY_BCOPY(context->state, sha256_initial_hash_value, SHA256_DIGEST_LENGTH);
- MEMSET_BZERO(context->buffer, SHA256_BLOCK_LENGTH);
- context->bitcount = 0;
-}
-
-#ifdef SHA2_UNROLL_TRANSFORM
-
-/* Unrolled SHA-256 round macros: */
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-
-#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \
- REVERSE32(*data++, W256[j]); \
- T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
- K256[j] + W256[j]; \
- (d) += T1; \
- (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
- j++
-
-
-#else /* BYTE_ORDER == LITTLE_ENDIAN */
-
-#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h) \
- T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
- K256[j] + (W256[j] = *data++); \
- (d) += T1; \
- (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
- j++
-
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
-
-#define ROUND256(a,b,c,d,e,f,g,h) \
- s0 = W256[(j+1)&0x0f]; \
- s0 = sigma0_256(s0); \
- s1 = W256[(j+14)&0x0f]; \
- s1 = sigma1_256(s1); \
- T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + K256[j] + \
- (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); \
- (d) += T1; \
- (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
- j++
-
-void SHA256_Transform(SHA256_CTX* context, const uint32_t* data) {
- uint32_t a, b, c, d, e, f, g, h, s0, s1;
- uint32_t T1, *W256;
- int j;
-
- W256 = (uint32_t*)context->buffer;
-
- /* Initialize registers with the prev. intermediate value */
- a = context->state[0];
- b = context->state[1];
- c = context->state[2];
- d = context->state[3];
- e = context->state[4];
- f = context->state[5];
- g = context->state[6];
- h = context->state[7];
-
- j = 0;
- do {
- /* Rounds 0 to 15 (unrolled): */
- ROUND256_0_TO_15(a,b,c,d,e,f,g,h);
- ROUND256_0_TO_15(h,a,b,c,d,e,f,g);
- ROUND256_0_TO_15(g,h,a,b,c,d,e,f);
- ROUND256_0_TO_15(f,g,h,a,b,c,d,e);
- ROUND256_0_TO_15(e,f,g,h,a,b,c,d);
- ROUND256_0_TO_15(d,e,f,g,h,a,b,c);
- ROUND256_0_TO_15(c,d,e,f,g,h,a,b);
- ROUND256_0_TO_15(b,c,d,e,f,g,h,a);
- } while (j < 16);
-
- /* Now for the remaining rounds to 64: */
- do {
- ROUND256(a,b,c,d,e,f,g,h);
- ROUND256(h,a,b,c,d,e,f,g);
- ROUND256(g,h,a,b,c,d,e,f);
- ROUND256(f,g,h,a,b,c,d,e);
- ROUND256(e,f,g,h,a,b,c,d);
- ROUND256(d,e,f,g,h,a,b,c);
- ROUND256(c,d,e,f,g,h,a,b);
- ROUND256(b,c,d,e,f,g,h,a);
- } while (j < 64);
-
- /* Compute the current intermediate hash value */
- context->state[0] += a;
- context->state[1] += b;
- context->state[2] += c;
- context->state[3] += d;
- context->state[4] += e;
- context->state[5] += f;
- context->state[6] += g;
- context->state[7] += h;
-
- /* Clean up */
- a = b = c = d = e = f = g = h = T1 = 0;
-}
-
-#else /* SHA2_UNROLL_TRANSFORM */
-
-static void SHA256_Transform(SHA256_CTX* context, const uint32_t* data) {
- uint32_t a, b, c, d, e, f, g, h, s0, s1;
- uint32_t T1, T2, *W256;
- int j;
-
- W256 = (uint32_t*)context->buffer;
-
- /* Initialize registers with the prev. intermediate value */
- a = context->state[0];
- b = context->state[1];
- c = context->state[2];
- d = context->state[3];
- e = context->state[4];
- f = context->state[5];
- g = context->state[6];
- h = context->state[7];
-
- j = 0;
- do {
-#if BYTE_ORDER == LITTLE_ENDIAN
- /* Copy data while converting to host byte order */
- REVERSE32(*data++,W256[j]);
- /* Apply the SHA-256 compression function to update a..h */
- T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + W256[j];
-#else /* BYTE_ORDER == LITTLE_ENDIAN */
- /* Apply the SHA-256 compression function to update a..h with copy */
- T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + (W256[j] = *data++);
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
- T2 = Sigma0_256(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
-
- j++;
- } while (j < 16);
-
- do {
- /* Part of the message block expansion: */
- s0 = W256[(j+1)&0x0f];
- s0 = sigma0_256(s0);
- s1 = W256[(j+14)&0x0f];
- s1 = sigma1_256(s1);
-
- /* Apply the SHA-256 compression function to update a..h */
- T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] +
- (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0);
- T2 = Sigma0_256(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
-
- j++;
- } while (j < 64);
-
- /* Compute the current intermediate hash value */
- context->state[0] += a;
- context->state[1] += b;
- context->state[2] += c;
- context->state[3] += d;
- context->state[4] += e;
- context->state[5] += f;
- context->state[6] += g;
- context->state[7] += h;
-
- /* Clean up */
- a = b = c = d = e = f = g = h = T1 = T2 = 0;
-}
-
-#endif /* SHA2_UNROLL_TRANSFORM */
-
-static void SHA256_Update(SHA256_CTX* context, const uint8_t *data, size_t len) {
- unsigned int freespace, usedspace;
-
- if (len == 0) {
- /* Calling with no data is valid - we do nothing */
- return;
- }
-
- /* Sanity check: */
- assert(context != (SHA256_CTX*)0 && data != (uint8_t*)0);
-
- usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH;
- if (usedspace > 0) {
- /* Calculate how much free space is available in the buffer */
- freespace = SHA256_BLOCK_LENGTH - usedspace;
-
- if (len >= freespace) {
- /* Fill the buffer completely and process it */
- MEMCPY_BCOPY(&context->buffer[usedspace], data, freespace);
- context->bitcount += freespace << 3;
- len -= freespace;
- data += freespace;
- SHA256_Transform(context, (uint32_t*)context->buffer);
- } else {
- /* The buffer is not yet full */
- MEMCPY_BCOPY(&context->buffer[usedspace], data, len);
- context->bitcount += len << 3;
- /* Clean up: */
- usedspace = freespace = 0;
- return;
- }
- }
- while (len >= SHA256_BLOCK_LENGTH) {
- /* Process as many complete blocks as we can */
- SHA256_Transform(context, (const uint32_t*)data);
- context->bitcount += SHA256_BLOCK_LENGTH << 3;
- len -= SHA256_BLOCK_LENGTH;
- data += SHA256_BLOCK_LENGTH;
- }
- if (len > 0) {
- /* There's left-overs, so save 'em */
- MEMCPY_BCOPY(context->buffer, data, len);
- context->bitcount += len << 3;
- }
- /* Clean up: */
- usedspace = freespace = 0;
-}
-
-static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) {
- uint32_t *d = (uint32_t*)digest;
- unsigned int usedspace;
-
- /* Sanity check: */
- assert(context != (SHA256_CTX*)0);
-
- /* If no digest buffer is passed, we don't bother doing this: */
- if (digest != (uint8_t*)0) {
- usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH;
-#if BYTE_ORDER == LITTLE_ENDIAN
- /* Convert FROM host byte order */
- REVERSE64(context->bitcount,context->bitcount);
-#endif
- if (usedspace > 0) {
- /* Begin padding with a 1 bit: */
- context->buffer[usedspace++] = 0x80;
-
- if (usedspace <= SHA256_SHORT_BLOCK_LENGTH) {
- /* Set-up for the last transform: */
- MEMSET_BZERO(&context->buffer[usedspace], SHA256_SHORT_BLOCK_LENGTH - usedspace);
- } else {
- if (usedspace < SHA256_BLOCK_LENGTH) {
- MEMSET_BZERO(&context->buffer[usedspace], SHA256_BLOCK_LENGTH - usedspace);
- }
- /* Do second-to-last transform: */
- SHA256_Transform(context, (uint32_t*)context->buffer);
-
- /* And set-up for the last transform: */
- MEMSET_BZERO(context->buffer, SHA256_SHORT_BLOCK_LENGTH);
- }
- } else {
- /* Set-up for the last transform: */
- MEMSET_BZERO(context->buffer, SHA256_SHORT_BLOCK_LENGTH);
-
- /* Begin padding with a 1 bit: */
- *context->buffer = 0x80;
- }
- /* Set the bit count: */
- //*(uint64_t*)&context->buffer[SHA256_SHORT_BLOCK_LENGTH] = context->bitcount; // aliasing violation warning
- context->buffer64[SHA256_SHORT_BLOCK_LENGTH / sizeof(uint64_t)] = context->bitcount;
-
- /* Final transform: */
- SHA256_Transform(context, (uint32_t*)context->buffer);
-
-#if BYTE_ORDER == LITTLE_ENDIAN
- {
- /* Convert TO host byte order */
- int j;
- for (j = 0; j < 8; j++) {
- REVERSE32(context->state[j],context->state[j]);
- *d++ = context->state[j];
- }
- }
-#else
- MEMCPY_BCOPY(d, context->state, SHA256_DIGEST_LENGTH);
-#endif
- }
-
- /* Clean up state data: */
- MEMSET_BZERO(context, sizeof(*context));
- usedspace = 0;
-}
-
-/*
-static char *SHA256_End(SHA256_CTX* context, char buffer[]) {
- uint8_t digest[SHA256_DIGEST_LENGTH], *d = digest;
- int i;
-
- / * Sanity check: * /
- assert(context != (SHA256_CTX*)0);
-
- if (buffer != (char*)0) {
- SHA256_Final(digest, context);
-
- for (i = 0; i < SHA256_DIGEST_LENGTH; i++) {
- *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
- *buffer++ = sha2_hex_digits[*d & 0x0f];
- d++;
- }
- *buffer = (char)0;
- } else {
- MEMSET_BZERO(context, sizeof(context));
- }
- MEMSET_BZERO(digest, SHA256_DIGEST_LENGTH);
- return buffer;
-}
-
-static char* SHA256_Data(const uint8_t* data, size_t len, char digest[SHA256_DIGEST_STRING_LENGTH]) {
- SHA256_CTX context;
-
- SHA256_Init(&context);
- SHA256_Update(&context, data, len);
- return SHA256_End(&context, digest);
-}
-*/
-
-
-/*** SHA-512: *********************************************************/
-static void SHA512_Init(SHA512_CTX* context) {
- if (context == (SHA512_CTX*)0) {
- return;
- }
- MEMCPY_BCOPY(context->state, sha512_initial_hash_value, SHA512_DIGEST_LENGTH);
- MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH);
- context->bitcount[0] = context->bitcount[1] = 0;
-}
-
-#ifdef SHA2_UNROLL_TRANSFORM
-
-/* Unrolled SHA-512 round macros: */
-#if BYTE_ORDER == LITTLE_ENDIAN
-
-#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \
- REVERSE64(*data++, W512[j]); \
- T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
- K512[j] + W512[j]; \
- (d) += T1, \
- (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)), \
- j++
-
-
-#else /* BYTE_ORDER == LITTLE_ENDIAN */
-
-#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h) \
- T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
- K512[j] + (W512[j] = *data++); \
- (d) += T1; \
- (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
- j++
-
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
-
-#define ROUND512(a,b,c,d,e,f,g,h) \
- s0 = W512[(j+1)&0x0f]; \
- s0 = sigma0_512(s0); \
- s1 = W512[(j+14)&0x0f]; \
- s1 = sigma1_512(s1); \
- T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + K512[j] + \
- (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); \
- (d) += T1; \
- (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
- j++
-
-static void SHA512_Transform(SHA512_CTX* context, const uint64_t* data) {
- uint64_t a, b, c, d, e, f, g, h, s0, s1;
- uint64_t T1, *W512 = (uint64_t*)context->buffer;
- int j;
-
- /* Initialize registers with the prev. intermediate value */
- a = context->state[0];
- b = context->state[1];
- c = context->state[2];
- d = context->state[3];
- e = context->state[4];
- f = context->state[5];
- g = context->state[6];
- h = context->state[7];
-
- j = 0;
- do {
- ROUND512_0_TO_15(a,b,c,d,e,f,g,h);
- ROUND512_0_TO_15(h,a,b,c,d,e,f,g);
- ROUND512_0_TO_15(g,h,a,b,c,d,e,f);
- ROUND512_0_TO_15(f,g,h,a,b,c,d,e);
- ROUND512_0_TO_15(e,f,g,h,a,b,c,d);
- ROUND512_0_TO_15(d,e,f,g,h,a,b,c);
- ROUND512_0_TO_15(c,d,e,f,g,h,a,b);
- ROUND512_0_TO_15(b,c,d,e,f,g,h,a);
- } while (j < 16);
-
- /* Now for the remaining rounds up to 79: */
- do {
- ROUND512(a,b,c,d,e,f,g,h);
- ROUND512(h,a,b,c,d,e,f,g);
- ROUND512(g,h,a,b,c,d,e,f);
- ROUND512(f,g,h,a,b,c,d,e);
- ROUND512(e,f,g,h,a,b,c,d);
- ROUND512(d,e,f,g,h,a,b,c);
- ROUND512(c,d,e,f,g,h,a,b);
- ROUND512(b,c,d,e,f,g,h,a);
- } while (j < 80);
-
- /* Compute the current intermediate hash value */
- context->state[0] += a;
- context->state[1] += b;
- context->state[2] += c;
- context->state[3] += d;
- context->state[4] += e;
- context->state[5] += f;
- context->state[6] += g;
- context->state[7] += h;
-
- /* Clean up */
- a = b = c = d = e = f = g = h = T1 = 0;
-}
-
-#else /* SHA2_UNROLL_TRANSFORM */
-
-static void SHA512_Transform(SHA512_CTX* context, const uint64_t* data) {
- uint64_t a, b, c, d, e, f, g, h, s0, s1;
- uint64_t T1, T2, *W512 = (uint64_t*)context->buffer;
- int j;
-
- /* Initialize registers with the prev. intermediate value */
- a = context->state[0];
- b = context->state[1];
- c = context->state[2];
- d = context->state[3];
- e = context->state[4];
- f = context->state[5];
- g = context->state[6];
- h = context->state[7];
-
- j = 0;
- do {
-#if BYTE_ORDER == LITTLE_ENDIAN
- /* Convert TO host byte order */
- REVERSE64(*data++, W512[j]);
- /* Apply the SHA-512 compression function to update a..h */
- T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j];
-#else /* BYTE_ORDER == LITTLE_ENDIAN */
- /* Apply the SHA-512 compression function to update a..h with copy */
- T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + (W512[j] = *data++);
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
- T2 = Sigma0_512(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
-
- j++;
- } while (j < 16);
-
- do {
- /* Part of the message block expansion: */
- s0 = W512[(j+1)&0x0f];
- s0 = sigma0_512(s0);
- s1 = W512[(j+14)&0x0f];
- s1 = sigma1_512(s1);
-
- /* Apply the SHA-512 compression function to update a..h */
- T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] +
- (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0);
- T2 = Sigma0_512(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
-
- j++;
- } while (j < 80);
-
- /* Compute the current intermediate hash value */
- context->state[0] += a;
- context->state[1] += b;
- context->state[2] += c;
- context->state[3] += d;
- context->state[4] += e;
- context->state[5] += f;
- context->state[6] += g;
- context->state[7] += h;
-
- /* Clean up */
- a = b = c = d = e = f = g = h = T1 = T2 = 0;
-}
-
-#endif /* SHA2_UNROLL_TRANSFORM */
-
-static void SHA512_Update(SHA512_CTX* context, const uint8_t *data, size_t len) {
- unsigned int freespace, usedspace;
-
- if (len == 0) {
- /* Calling with no data is valid - we do nothing */
- return;
- }
-
- /* Sanity check: */
- assert(context != (SHA512_CTX*)0 && data != (uint8_t*)0);
-
- usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
- if (usedspace > 0) {
- /* Calculate how much free space is available in the buffer */
- freespace = SHA512_BLOCK_LENGTH - usedspace;
-
- if (len >= freespace) {
- /* Fill the buffer completely and process it */
- MEMCPY_BCOPY(&context->buffer[usedspace], data, freespace);
- ADDINC128(context->bitcount, freespace << 3);
- len -= freespace;
- data += freespace;
- SHA512_Transform(context, (uint64_t*)context->buffer);
- } else {
- /* The buffer is not yet full */
- MEMCPY_BCOPY(&context->buffer[usedspace], data, len);
- ADDINC128(context->bitcount, len << 3);
- /* Clean up: */
- usedspace = freespace = 0;
- return;
- }
- }
- while (len >= SHA512_BLOCK_LENGTH) {
- /* Process as many complete blocks as we can */
- SHA512_Transform(context, (const uint64_t*)data);
- ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3);
- len -= SHA512_BLOCK_LENGTH;
- data += SHA512_BLOCK_LENGTH;
- }
- if (len > 0) {
- /* There's left-overs, so save 'em */
- MEMCPY_BCOPY(context->buffer, data, len);
- ADDINC128(context->bitcount, len << 3);
- }
- /* Clean up: */
- usedspace = freespace = 0;
-}
-
-static void SHA512_Last(SHA512_CTX* context) {
- unsigned int usedspace;
-
- usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
-#if BYTE_ORDER == LITTLE_ENDIAN
- /* Convert FROM host byte order */
- REVERSE64(context->bitcount[0],context->bitcount[0]);
- REVERSE64(context->bitcount[1],context->bitcount[1]);
-#endif
- if (usedspace > 0) {
- /* Begin padding with a 1 bit: */
- context->buffer[usedspace++] = 0x80;
-
- if (usedspace <= SHA512_SHORT_BLOCK_LENGTH) {
- /* Set-up for the last transform: */
- MEMSET_BZERO(&context->buffer[usedspace], SHA512_SHORT_BLOCK_LENGTH - usedspace);
- } else {
- if (usedspace < SHA512_BLOCK_LENGTH) {
- MEMSET_BZERO(&context->buffer[usedspace], SHA512_BLOCK_LENGTH - usedspace);
- }
- /* Do second-to-last transform: */
- SHA512_Transform(context, (uint64_t*)context->buffer);
-
- /* And set-up for the last transform: */
- MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH - 2);
- }
- } else {
- /* Prepare for final transform: */
- MEMSET_BZERO(context->buffer, SHA512_SHORT_BLOCK_LENGTH);
-
- /* Begin padding with a 1 bit: */
- *context->buffer = 0x80;
- }
- /* Store the length of input data (in bits): */
- //*(uint64_t*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH] = context->bitcount[1]; // aliasing violation warning
- //*(uint64_t*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH+8] = context->bitcount[0];
- context->buffer64[SHA512_SHORT_BLOCK_LENGTH / sizeof(uint64_t)] = context->bitcount[1];
- context->buffer64[SHA512_SHORT_BLOCK_LENGTH / sizeof(uint64_t) + 1] = context->bitcount[0];
-
- /* Final transform: */
- SHA512_Transform(context, (uint64_t*)context->buffer);
-}
-
-static void SHA512_Final(uint8_t digest[], SHA512_CTX* context) {
- uint64_t *d = (uint64_t*)digest;
-
- /* Sanity check: */
- assert(context != (SHA512_CTX*)0);
-
- /* If no digest buffer is passed, we don't bother doing this: */
- if (digest != (uint8_t*)0) {
- SHA512_Last(context);
-
- /* Save the hash data for output: */
-#if BYTE_ORDER == LITTLE_ENDIAN
- {
- /* Convert TO host byte order */
- int j;
- for (j = 0; j < 8; j++) {
- REVERSE64(context->state[j],context->state[j]);
- *d++ = context->state[j];
- }
- }
-#else
- MEMCPY_BCOPY(d, context->state, SHA512_DIGEST_LENGTH);
-#endif
- }
-
- /* Zero out state data */
- MEMSET_BZERO(context, sizeof(*context));
-}
-
-/*
-static char *SHA512_End(SHA512_CTX* context, char buffer[]) {
- uint8_t digest[SHA512_DIGEST_LENGTH], *d = digest;
- int i;
-
- / * Sanity check: * /
- assert(context != (SHA512_CTX*)0);
-
- if (buffer != (char*)0) {
- SHA512_Final(digest, context);
-
- for (i = 0; i < SHA512_DIGEST_LENGTH; i++) {
- *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
- *buffer++ = sha2_hex_digits[*d & 0x0f];
- d++;
- }
- *buffer = (char)0;
- } else {
- MEMSET_BZERO(context, sizeof(context));
- }
- MEMSET_BZERO(digest, SHA512_DIGEST_LENGTH);
- return buffer;
-}
-
-static char* SHA512_Data(const uint8_t* data, size_t len, char digest[SHA512_DIGEST_STRING_LENGTH]) {
- SHA512_CTX context;
-
- SHA512_Init(&context);
- SHA512_Update(&context, data, len);
- return SHA512_End(&context, digest);
-}
-*/
-
-/*** SHA-384: *********************************************************/
-static void SHA384_Init(SHA384_CTX* context) {
- if (context == (SHA384_CTX*)0) {
- return;
- }
- MEMCPY_BCOPY(context->state, sha384_initial_hash_value, SHA512_DIGEST_LENGTH);
- MEMSET_BZERO(context->buffer, SHA384_BLOCK_LENGTH);
- context->bitcount[0] = context->bitcount[1] = 0;
-}
-
-static void SHA384_Update(SHA384_CTX* context, const uint8_t* data, size_t len) {
- SHA512_Update((SHA512_CTX*)context, data, len);
-}
-
-static void SHA384_Final(uint8_t digest[], SHA384_CTX* context) {
- uint64_t *d = (uint64_t*)digest;
-
- /* Sanity check: */
- assert(context != (SHA384_CTX*)0);
-
- /* If no digest buffer is passed, we don't bother doing this: */
- if (digest != (uint8_t*)0) {
- SHA512_Last((SHA512_CTX*)context);
-
- /* Save the hash data for output: */
-#if BYTE_ORDER == LITTLE_ENDIAN
- {
- /* Convert TO host byte order */
- int j;
- for (j = 0; j < 6; j++) {
- REVERSE64(context->state[j],context->state[j]);
- *d++ = context->state[j];
- }
- }
-#else
- MEMCPY_BCOPY(d, context->state, SHA384_DIGEST_LENGTH);
-#endif
- }
-
- /* Zero out state data */
- MEMSET_BZERO(context, sizeof(*context));
-}
-
-/*
-static char *SHA384_End(SHA384_CTX* context, char buffer[]) {
- uint8_t digest[SHA384_DIGEST_LENGTH], *d = digest;
- int i;
-
- / * Sanity check: * /
- assert(context != (SHA384_CTX*)0);
-
- if (buffer != (char*)0) {
- SHA384_Final(digest, context);
-
- for (i = 0; i < SHA384_DIGEST_LENGTH; i++) {
- *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
- *buffer++ = sha2_hex_digits[*d & 0x0f];
- d++;
- }
- *buffer = (char)0;
- } else {
- MEMSET_BZERO(context, sizeof(context));
- }
- MEMSET_BZERO(digest, SHA384_DIGEST_LENGTH);
- return buffer;
-}
-
-static char* SHA384_Data(const uint8_t* data, size_t len, char digest[SHA384_DIGEST_STRING_LENGTH]) {
- SHA384_CTX context;
-
- SHA384_Init(&context);
- SHA384_Update(&context, data, len);
- return SHA384_End(&context, digest);
-}
-*/
-
-/* end of sha2.c */
-
-void sha256_init (sha256_state *state)
-{
- SHA256_Init(state);
-}
-
-void sha384_init (sha384_state *state)
-{
- SHA384_Init(state);
-}
-
-void sha512_init (sha512_state *state)
-{
- SHA512_Init(state);
-}
-
-
-void sha256_add (sha256_state *state, const void *data, size_t size)
-{
- SHA256_Update(state, (const uint8_t *)data, size);
-}
-
-void sha384_add (sha384_state *state, const void *data, size_t size)
-{
- SHA384_Update(state, (const uint8_t *)data, size);
-}
-
-void sha512_add (sha512_state *state, const void *data, size_t size)
-{
- SHA512_Update(state, (const uint8_t *)data, size);
-}
-
-
-void sha256_put (sha256_state *state, uint8_t digest[SHA256_DIGEST_LENGTH])
-{
- SHA256_Final(digest, state);
-}
-
-void sha384_put (sha384_state *state, uint8_t digest[SHA384_DIGEST_LENGTH])
-{
- SHA384_Final(digest, state);
-}
-
-void sha512_put (sha384_state *state, uint8_t digest[SHA512_DIGEST_LENGTH])
-{
- SHA512_Final(digest, state);
-}
-
-
-void sha256 (const void *data, size_t size, uint8_t digest[SHA256_DIGEST_LENGTH])
-{
- sha256_state state;
- SHA256_Init(&state);
- SHA256_Update(&state, (const uint8_t *)data, size);
- SHA256_Final(digest, &state);
-}
-
-void sha384 (const void *data, size_t size, uint8_t digest[SHA384_DIGEST_LENGTH])
-{
- sha384_state state;
- SHA384_Init(&state);
- SHA384_Update(&state, (const uint8_t *)data, size);
- SHA384_Final(digest, &state);
-}
-
-void sha512 (const void *data, size_t size, uint8_t digest[SHA512_DIGEST_LENGTH])
-{
- sha512_state state;
- SHA512_Init(&state);
- SHA512_Update(&state, (const uint8_t *)data, size);
- SHA512_Final(digest, &state);
-}
-
-static sha256_state sha256state;
-static sha384_state sha384state;
-static sha512_state sha512state;
-
-
-void sha256init (void)
-{
- SHA256_Init(&sha256state);
-}
-
-void sha384init (void)
-{
- SHA384_Init(&sha384state);
-}
-
-void sha512init (void)
-{
- SHA512_Init(&sha512state);
-}
-
-
-void sha256add (const void *data, size_t size)
-{
- SHA256_Update(&sha256state, (const uint8_t *)data, size);
-}
-
-void sha384add (const void *data, size_t size)
-{
- SHA384_Update(&sha384state, (const uint8_t *)data, size);
-}
-
-void sha512add (const void *data, size_t size)
-{
- SHA512_Update(&sha512state, (const uint8_t *)data, size);
-}
-
-
-void sha256put (uint8_t digest[SHA256_DIGEST_LENGTH])
-{
- SHA256_Final(digest, &sha256state);
-}
-
-void sha384put (uint8_t digest[SHA384_DIGEST_LENGTH])
-{
- SHA384_Final(digest, &sha384state);
-}
-
-void sha512put (uint8_t digest[SHA512_DIGEST_LENGTH])
-{
- SHA512_Final(digest, &sha512state);
-}
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