/* libFLAC - Free Lossless Audio Codec library * Copyright (C) 2001-2009 Josh Coalson * Copyright (C) 2011-2022 Xiph.Org Foundation * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - 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. * * - Neither the name of the Xiph.org Foundation nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``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 FOUNDATION OR * CONTRIBUTORS 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. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <stdlib.h> #include <string.h> #include "private/metadata.h" #include "private/memory.h" #include "FLAC/assert.h" #include "share/alloc.h" #include "share/compat.h" /* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */ #define safe_malloc_mul_2op_ … /**************************************************************************** * * Local routines * ***************************************************************************/ /* copy bytes: * from = NULL && bytes = 0 * to <- NULL * from != NULL && bytes > 0 * to <- copy of from * else ASSERT * malloc error leaves 'to' unchanged */ static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, uint32_t bytes) { … } #if 0 /* UNUSED */ /* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */ static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, uint32_t bytes) { FLAC__byte *copy; FLAC__ASSERT(to != NULL); if (copy_bytes_(©, from, bytes)) { free(*to); *to = copy; return true; } else return false; } #endif /* reallocate entry to 1 byte larger and add a terminating NUL */ /* realloc() failure leaves entry unchanged */ static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, uint32_t length) { … } /* copies the NUL-terminated C-string 'from' to '*to', leaving '*to' * unchanged if malloc fails, free()ing the original '*to' if it * succeeds and the original '*to' was not NULL */ static FLAC__bool copy_cstring_(char **to, const char *from) { … } static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from) { … } static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from) { … } static void seektable_calculate_length_(FLAC__StreamMetadata *object) { … } static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(uint32_t num_points) { … } static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object) { … } static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(uint32_t num_comments) { … } static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, uint32_t num_comments) { … } static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, uint32_t num_comments) { … } static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy) { … } static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, uint32_t offset, const char *field_name, uint32_t field_name_length) { … } static void cuesheet_calculate_length_(FLAC__StreamMetadata *object) { … } static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(uint32_t num_indices) { … } static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(uint32_t num_tracks) { … } static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, uint32_t num_tracks) { … } static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, uint32_t num_tracks) { … } static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy) { … } /**************************************************************************** * * Metadata object routines * ***************************************************************************/ FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type) { … } FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object) { … } void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object) { … } FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object) { … } static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2) { … } static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, uint32_t block_length) { … } static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2) { … } static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2) { … } static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2) { … } static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2) { … } static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, uint32_t block_length) { … } FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2) { … } FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, uint32_t length, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, uint32_t new_num_points) { … } FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, uint32_t point_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, uint32_t num) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], uint32_t num) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, uint32_t num, FLAC__uint64 total_samples) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, uint32_t samples, FLAC__uint64 total_samples) { … } FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, uint32_t new_num_comments) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, uint32_t comment_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value) { … } FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, uint32_t field_name_length) { … } FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, uint32_t offset, const char *field_name) { … } FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name) { … } FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name) { … } FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void) { … } FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object) { … } void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object) { … } FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t new_num_indices) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num, FLAC__StreamMetadata_CueSheet_Index indx) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, uint32_t new_num_tracks) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, uint32_t track_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, uint32_t track_num) { … } FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation) { … } static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, uint32_t track) { … } static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x) { … } /*@@@@add to tests*/ FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object) { … } FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy) { … } FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation) { … }
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