1 /* metaflac - Command-line FLAC metadata editor
2 * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 Josh Coalson
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
29 #include "FLAC/assert.h"
30 #include "share/alloc.h"
31 #include "share/safe_str.h"
32 #include "share/utf8.h"
34 void die(const char *message)
36 FLAC__ASSERT(0 != message);
37 fprintf(stderr, "ERROR: %s\n", message);
41 #ifdef FLAC__VALGRIND_TESTING
42 size_t local_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
44 size_t ret = fwrite(ptr, size, nmemb, stream);
51 char *local_strdup(const char *source)
54 FLAC__ASSERT(0 != source);
55 if(0 == (ret = strdup(source)))
56 die("out of memory during strdup()");
60 void local_strcat(char **dest, const char *source)
62 size_t ndest, nsource;
64 FLAC__ASSERT(0 != dest);
65 FLAC__ASSERT(0 != source);
67 ndest = *dest? strlen(*dest) : 0;
68 nsource = strlen(source);
73 *dest = safe_realloc_add_3op_(*dest, ndest, /*+*/nsource, /*+*/1);
75 die("out of memory growing string");
76 safe_strncpy((*dest)+ndest, source, ndest + nsource + 1);
79 void hexdump(const char *filename, const FLAC__byte *buf, unsigned bytes, const char *indent)
81 unsigned i, left = bytes;
82 const FLAC__byte *b = buf;
84 for(i = 0; i < bytes; i += 16) {
86 "%02X %02X %02X %02X %02X %02X %02X %02X "
87 "%02X %02X %02X %02X %02X %02X %02X %02X "
88 "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
89 filename? filename:"", filename? ":":"",
91 left > 0? (unsigned char)b[ 0] : 0,
92 left > 1? (unsigned char)b[ 1] : 0,
93 left > 2? (unsigned char)b[ 2] : 0,
94 left > 3? (unsigned char)b[ 3] : 0,
95 left > 4? (unsigned char)b[ 4] : 0,
96 left > 5? (unsigned char)b[ 5] : 0,
97 left > 6? (unsigned char)b[ 6] : 0,
98 left > 7? (unsigned char)b[ 7] : 0,
99 left > 8? (unsigned char)b[ 8] : 0,
100 left > 9? (unsigned char)b[ 9] : 0,
101 left > 10? (unsigned char)b[10] : 0,
102 left > 11? (unsigned char)b[11] : 0,
103 left > 12? (unsigned char)b[12] : 0,
104 left > 13? (unsigned char)b[13] : 0,
105 left > 14? (unsigned char)b[14] : 0,
106 left > 15? (unsigned char)b[15] : 0,
107 (left > 0) ? (isprint(b[ 0]) ? b[ 0] : '.') : ' ',
108 (left > 1) ? (isprint(b[ 1]) ? b[ 1] : '.') : ' ',
109 (left > 2) ? (isprint(b[ 2]) ? b[ 2] : '.') : ' ',
110 (left > 3) ? (isprint(b[ 3]) ? b[ 3] : '.') : ' ',
111 (left > 4) ? (isprint(b[ 4]) ? b[ 4] : '.') : ' ',
112 (left > 5) ? (isprint(b[ 5]) ? b[ 5] : '.') : ' ',
113 (left > 6) ? (isprint(b[ 6]) ? b[ 6] : '.') : ' ',
114 (left > 7) ? (isprint(b[ 7]) ? b[ 7] : '.') : ' ',
115 (left > 8) ? (isprint(b[ 8]) ? b[ 8] : '.') : ' ',
116 (left > 9) ? (isprint(b[ 9]) ? b[ 9] : '.') : ' ',
117 (left > 10) ? (isprint(b[10]) ? b[10] : '.') : ' ',
118 (left > 11) ? (isprint(b[11]) ? b[11] : '.') : ' ',
119 (left > 12) ? (isprint(b[12]) ? b[12] : '.') : ' ',
120 (left > 13) ? (isprint(b[13]) ? b[13] : '.') : ' ',
121 (left > 14) ? (isprint(b[14]) ? b[14] : '.') : ' ',
122 (left > 15) ? (isprint(b[15]) ? b[15] : '.') : ' '
129 void print_error_with_chain_status(FLAC__Metadata_Chain *chain, const char *format, ...)
131 const FLAC__Metadata_ChainStatus status = FLAC__metadata_chain_status(chain);
134 FLAC__ASSERT(0 != format);
136 va_start(args, format);
138 (void) vfprintf(stderr, format, args);
142 fprintf(stderr, ", status = \"%s\"\n", FLAC__Metadata_ChainStatusString[status]);
144 if(status == FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE) {
146 "The FLAC file could not be opened. Most likely the file does not exist\n"
147 "or is not readable.\n"
150 else if(status == FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE) {
152 "The file does not appear to be a FLAC file.\n"
155 else if(status == FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE) {
157 "The FLAC file does not have write permissions.\n"
160 else if(status == FLAC__METADATA_CHAIN_STATUS_BAD_METADATA) {
162 "The metadata to be writted does not conform to the FLAC metadata\n"
166 else if(status == FLAC__METADATA_CHAIN_STATUS_READ_ERROR) {
168 "There was an error while reading the FLAC file.\n"
171 else if(status == FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR) {
173 "There was an error while writing FLAC file; most probably the disk is\n"
177 else if(status == FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR) {
179 "There was an error removing the temporary FLAC file.\n"
184 FLAC__bool parse_vorbis_comment_field(const char *field_ref, char **field, char **name, char **value, unsigned *length, const char **violation)
186 static const char * const violations[] = {
187 "field name contains invalid character",
188 "field contains no '=' character"
194 *field = local_strdup(field_ref);
196 s = local_strdup(field_ref);
198 if(0 == (p = strchr(s, '='))) {
200 *violation = violations[1];
205 for(q = s; *q; q++) {
206 if(*q < 0x20 || *q > 0x7d || *q == 0x3d) {
208 *violation = violations[0];
213 *name = local_strdup(s);
214 *value = local_strdup(p);
221 void write_vc_field(const char *filename, const FLAC__StreamMetadata_VorbisComment_Entry *entry, FLAC__bool raw, FILE *f)
223 if(0 != entry->entry) {
225 fprintf(f, "%s:", filename);
229 * WATCHOUT: comments that contain an embedded null will
230 * be truncated by utf_decode().
234 if(utf8_decode((const char *)entry->entry, &converted) >= 0) {
235 (void) local_fwrite(converted, 1, strlen(converted), f);
239 (void) local_fwrite(entry->entry, 1, entry->length, f);
243 (void) local_fwrite(entry->entry, 1, entry->length, f);
250 void write_vc_fields(const char *filename, const char *field_name, const FLAC__StreamMetadata_VorbisComment_Entry entry[], unsigned num_entries, FLAC__bool raw, FILE *f)
253 const unsigned field_name_length = (0 != field_name)? strlen(field_name) : 0;
255 for(i = 0; i < num_entries; i++) {
256 if(0 == field_name || FLAC__metadata_object_vorbiscomment_entry_matches(entry[i], field_name, field_name_length))
257 write_vc_field(filename, entry + i, raw, f);