/*
- * Copyright (C) 2008-2013 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2008 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file afh.c Paraslash's standalone audio format handler tool. */
#include <regex.h>
-#include <sys/time.h>
#include "para.h"
#include "string.h"
#include "afh.h"
#include "error.h"
#include "version.h"
+#include "ggo.h"
static struct afh_args_info conf;
INIT_AFH_ERRLISTS;
static int loglevel;
INIT_STDERR_LOGGING(loglevel)
+static inline bool tag_needs_update(bool given, const char *tag,
+ const char *arg)
+{
+ return given && (!tag || strcmp(tag, arg) != 0);
+}
+
+static int rewrite_tags(const char *name, int input_fd, void *map,
+ size_t map_size, int audio_format_id, struct afh_info *afhi)
+{
+ struct taginfo *tags = &afhi->tags;
+ bool modified = false;
+ char *tmp_name;
+ int output_fd = -1, ret;
+ struct stat sb;
+
+ if (tag_needs_update(conf.year_given, tags->year, conf.year_arg)) {
+ free(tags->year);
+ tags->year = para_strdup(conf.year_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.title_given, tags->title, conf.title_arg)) {
+ free(tags->title);
+ tags->title = para_strdup(conf.title_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.artist_given, tags->artist,
+ conf.artist_arg)) {
+ free(tags->artist);
+ tags->artist = para_strdup(conf.artist_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.album_given, tags->album, conf.album_arg)) {
+ free(tags->album);
+ tags->album = para_strdup(conf.album_arg);
+ modified = true;
+ }
+ if (tag_needs_update(conf.comment_given, tags->comment,
+ conf.comment_arg)) {
+ free(tags->comment);
+ tags->comment = para_strdup(conf.comment_arg);
+ modified = true;
+ }
+ if (!modified) {
+ PARA_WARNING_LOG("no modifications necessary\n");
+ return 0;
+ }
+ /*
+ * mkstmp() creates the temporary file with permissions 0600, but we
+ * like it to have the same permissions as the original file, so we
+ * have to get this information.
+ */
+ if (fstat(input_fd, &sb) < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("failed to fstat fd %d (%s)\n", input_fd, name);
+ return ret;
+ }
+ tmp_name = make_message("%s.XXXXXX", name);
+ ret = mkstemp(tmp_name);
+ if (ret < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("could not create temporary file\n");
+ goto out;
+ }
+ output_fd = ret;
+ if (fchmod(output_fd, sb.st_mode) < 0) {
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ PARA_ERROR_LOG("failed to fchmod fd %d (%s)\n", output_fd,
+ tmp_name);
+ goto out;
+ }
+ ret = afh_rewrite_tags(audio_format_id, map, map_size, tags, output_fd,
+ tmp_name);
+ if (ret < 0)
+ goto out;
+ if (conf.backup_given) {
+ char *backup_name = make_message("%s~", name);
+ ret = xrename(name, backup_name);
+ free(backup_name);
+ if (ret < 0)
+ goto out;
+ }
+ ret = xrename(tmp_name, name);
+out:
+ if (ret < 0 && output_fd >= 0)
+ unlink(tmp_name); /* ignore errors */
+ free(tmp_name);
+ if (output_fd >= 0)
+ close(output_fd);
+ return ret;
+}
+
static void print_info(int audio_format_num, struct afh_info *afhi)
{
char *msg;
}
}
+__noreturn static void print_help_and_die(void)
+{
+ struct ggo_help h = DEFINE_GGO_HELP(afh);
+ int d = conf.detailed_help_given;
+ unsigned flags = d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS;
+
+ ggo_print_help(&h, flags);
+ printf("supported audio formats: %s\n", AUDIO_FORMAT_HANDLERS);
+ exit(EXIT_SUCCESS);
+}
+
/**
* The main function of para_afh.
*
*/
int main(int argc, char **argv)
{
- int i, ret, audio_format_num, fd;
+ int i, ret = 0, audio_format_num, fd;
void *audio_file_data;
size_t audio_file_size;
struct afh_info afhi;
afh_cmdline_parser(argc, argv, &conf);
- HANDLE_VERSION_FLAG("afh", conf);
loglevel = get_loglevel_by_name(conf.loglevel_arg);
- ret = -E_AFH_SYNTAX;
- if (conf.inputs_num == 0)
- goto out;
+ version_handle_flag("afh", conf.version_given);
+ if (conf.help_given || conf.detailed_help_given || conf.inputs_num == 0)
+ print_help_and_die();
afh_init();
for (i = 0; i < conf.inputs_num; i++) {
int ret2;
}
ret = compute_afhi(conf.inputs[i], audio_file_data, audio_file_size,
fd, &afhi);
- if (ret < 0)
- goto out;
-
- audio_format_num = ret;
- printf("File %d: %s\n", i + 1, conf.inputs[i]);
- print_info(audio_format_num, &afhi);
- if (conf.chunk_table_given)
- print_chunk_table(&afhi);
- printf("\n");
- clear_afhi(&afhi);
+ if (ret >= 0) {
+ audio_format_num = ret;
+ if (conf.modify_given) {
+ ret = rewrite_tags(conf.inputs[i], fd, audio_file_data,
+ audio_file_size, audio_format_num, &afhi);
+ } else {
+ printf("File %d: %s\n", i + 1, conf.inputs[i]);
+ print_info(audio_format_num, &afhi);
+ if (conf.chunk_table_given)
+ print_chunk_table(&afhi);
+ printf("\n");
+ }
+ clear_afhi(&afhi);
+ }
+ close(fd);
ret2 = para_munmap(audio_file_data, audio_file_size);
if (ret2 < 0 && ret >= 0)
ret = ret2;
projects / paraslash.git / blobdiff