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Diffstat (limited to '3rdparty/libflac/src/flac/vorbiscomment.c')
-rw-r--r--3rdparty/libflac/src/flac/vorbiscomment.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/3rdparty/libflac/src/flac/vorbiscomment.c b/3rdparty/libflac/src/flac/vorbiscomment.c
deleted file mode 100644
index 6b35a1e6359..00000000000
--- a/3rdparty/libflac/src/flac/vorbiscomment.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/* flac - Command-line FLAC encoder/decoder
- * Copyright (C) 2002,2003,2004,2005,2006,2007 Josh Coalson
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "vorbiscomment.h"
-#include "FLAC/assert.h"
-#include "FLAC/metadata.h"
-#include "share/grabbag.h" /* for grabbag__file_get_filesize() */
-#include "share/utf8.h"
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * This struct and the following 4 static functions are copied from
- * ../metaflac/. Maybe someday there will be a convenience
- * library for Vorbis comment parsing.
- */
-typedef struct {
- char *field; /* the whole field as passed on the command line, i.e. "NAME=VALUE" */
- char *field_name;
- /* according to the vorbis spec, field values can contain \0 so simple C strings are not enough here */
- unsigned field_value_length;
- char *field_value;
- FLAC__bool field_value_from_file; /* true if field_value holds a filename for the value, false for plain value */
-} Argument_VcField;
-
-static void die(const char *message)
-{
- FLAC__ASSERT(0 != message);
- fprintf(stderr, "ERROR: %s\n", message);
- exit(1);
-}
-
-static char *local_strdup(const char *source)
-{
- char *ret;
- FLAC__ASSERT(0 != source);
- if(0 == (ret = strdup(source)))
- die("out of memory during strdup()");
- return ret;
-}
-
-static FLAC__bool parse_vorbis_comment_field(const char *field_ref, char **field, char **name, char **value, unsigned *length, const char **violation)
-{
- static const char * const violations[] = {
- "field name contains invalid character",
- "field contains no '=' character"
- };
-
- char *p, *q, *s;
-
- if(0 != field)
- *field = local_strdup(field_ref);
-
- s = local_strdup(field_ref);
-
- if(0 == (p = strchr(s, '='))) {
- free(s);
- *violation = violations[1];
- return false;
- }
- *p++ = '\0';
-
- for(q = s; *q; q++) {
- if(*q < 0x20 || *q > 0x7d || *q == 0x3d) {
- free(s);
- *violation = violations[0];
- return false;
- }
- }
-
- *name = local_strdup(s);
- *value = local_strdup(p);
- *length = strlen(p);
-
- free(s);
- return true;
-}
-
-/* slight modification: no 'filename' arg, and errors are passed back in 'violation' instead of printed to stderr */
-static FLAC__bool set_vc_field(FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw, const char **violation)
-{
- FLAC__StreamMetadata_VorbisComment_Entry entry;
- char *converted;
-
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(0 != field);
- FLAC__ASSERT(0 != needs_write);
-
- if(field->field_value_from_file) {
- /* read the file into 'data' */
- FILE *f = 0;
- char *data = 0;
- const off_t size = grabbag__file_get_filesize(field->field_value);
- if(size < 0) {
- *violation = "can't open file for tag value";
- return false;
- }
- if(size >= 0x100000) { /* magic arbitrary limit, actual format limit is near 16MB */
- *violation = "file for tag value is too large";
- return false;
- }
- if(0 == (data = malloc(size+1)))
- die("out of memory allocating tag value");
- data[size] = '\0';
- if(0 == (f = fopen(field->field_value, "rb")) || fread(data, 1, size, f) != (size_t)size) {
- free(data);
- if(f)
- fclose(f);
- *violation = "error while reading file for tag value";
- return false;
- }
- fclose(f);
- if(strlen(data) != (size_t)size) {
- free(data);
- *violation = "file for tag value has embedded NULs";
- return false;
- }
-
- /* move 'data' into 'converted', converting to UTF-8 if necessary */
- if(raw) {
- converted = data;
- }
- else if(utf8_encode(data, &converted) >= 0) {
- free(data);
- }
- else {
- free(data);
- *violation = "error converting file contents to UTF-8 for tag value";
- return false;
- }
-
- /* create and entry and append it */
- if(!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, field->field_name, converted)) {
- free(converted);
- *violation = "file for tag value is not valid UTF-8";
- return false;
- }
- free(converted);
- if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/false)) {
- *violation = "memory allocation failure";
- return false;
- }
-
- *needs_write = true;
- return true;
- }
- else {
- FLAC__bool needs_free = false;
- if(raw) {
- entry.entry = (FLAC__byte *)field->field;
- }
- else if(utf8_encode(field->field, &converted) >= 0) {
- entry.entry = (FLAC__byte *)converted;
- needs_free = true;
- }
- else {
- *violation = "error converting comment to UTF-8";
- return false;
- }
- entry.length = strlen((const char *)entry.entry);
- if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) {
- if(needs_free)
- free(converted);
- /*
- * our previous parsing has already established that the field
- * name is OK, so it must be the field value
- */
- *violation = "tag value for is not valid UTF-8";
- return false;
- }
-
- if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/true)) {
- if(needs_free)
- free(converted);
- *violation = "memory allocation failure";
- return false;
- }
-
- *needs_write = true;
- if(needs_free)
- free(converted);
- return true;
- }
-}
-
-/*
- * The rest of the code is novel
- */
-
-static void free_field(Argument_VcField *obj)
-{
- if(0 != obj->field)
- free(obj->field);
- if(0 != obj->field_name)
- free(obj->field_name);
- if(0 != obj->field_value)
- free(obj->field_value);
-}
-
-FLAC__bool flac__vorbiscomment_add(FLAC__StreamMetadata *block, const char *comment, FLAC__bool value_from_file, FLAC__bool raw, const char **violation)
-{
- Argument_VcField parsed;
- FLAC__bool dummy;
-
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(0 != comment);
-
- memset(&parsed, 0, sizeof(parsed));
-
- parsed.field_value_from_file = value_from_file;
- if(!parse_vorbis_comment_field(comment, &(parsed.field), &(parsed.field_name), &(parsed.field_value), &(parsed.field_value_length), violation)) {
- free_field(&parsed);
- return false;
- }
-
- if(!set_vc_field(block, &parsed, &dummy, raw, violation)) {
- free_field(&parsed);
- return false;
- }
- else {
- free_field(&parsed);
- return true;
- }
-}