aboutsummaryrefslogtreecommitdiffstats
path: root/src/database.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/database.c94
1 files changed, 71 insertions, 23 deletions
diff --git a/src/database.c b/src/database.c
index 5a06dda98..0cf4a667e 100644
--- a/src/database.c
+++ b/src/database.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * Copyright (C) 2003-2010 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -17,13 +17,16 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "config.h"
#include "database.h"
#include "directory.h"
#include "directory_save.h"
#include "song.h"
#include "path.h"
#include "stats.h"
-#include "config.h"
+#include "text_file.h"
+#include "tag.h"
+#include "tag_internal.h"
#include <glib.h>
@@ -40,8 +43,14 @@
#define DIRECTORY_INFO_BEGIN "info_begin"
#define DIRECTORY_INFO_END "info_end"
+#define DB_FORMAT_PREFIX "format: "
#define DIRECTORY_MPD_VERSION "mpd_version: "
#define DIRECTORY_FS_CHARSET "fs_charset: "
+#define DB_TAG_PREFIX "tag: "
+
+enum {
+ DB_FORMAT = 1,
+};
static char *database_path;
@@ -232,11 +241,19 @@ db_save(void)
/* block signals when writing the db so we don't get a corrupted db */
fprintf(fp, "%s\n", DIRECTORY_INFO_BEGIN);
+ fprintf(fp, DB_FORMAT_PREFIX "%u\n", DB_FORMAT);
fprintf(fp, "%s%s\n", DIRECTORY_MPD_VERSION, VERSION);
fprintf(fp, "%s%s\n", DIRECTORY_FS_CHARSET, path_get_fs_charset());
+
+ for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i)
+ if (!ignore_tag_items[i])
+ fprintf(fp, DB_TAG_PREFIX "%s\n", tag_item_names[i]);
+
fprintf(fp, "%s\n", DIRECTORY_INFO_END);
- if (directory_save(fp, music_root) < 0) {
+ directory_save(fp, music_root);
+
+ if (ferror(fp)) {
g_warning("Failed to write to database file: %s",
strerror(errno));
while (fclose(fp) && errno == EINTR);
@@ -256,64 +273,64 @@ db_load(GError **error)
{
FILE *fp = NULL;
struct stat st;
- char buffer[100];
+ GString *buffer = g_string_sized_new(1024);
+ char *line;
+ int format = 0;
bool found_charset = false, found_version = false;
bool success;
+ bool tags[TAG_NUM_OF_ITEM_TYPES];
assert(database_path != NULL);
assert(music_root != NULL);
- if (!music_root)
- music_root = directory_new("", NULL);
while (!(fp = fopen(database_path, "r")) && errno == EINTR) ;
if (fp == NULL) {
g_set_error(error, db_quark(), errno,
"Failed to open database file \"%s\": %s",
database_path, strerror(errno));
+ g_string_free(buffer, true);
return false;
}
/* get initial info */
- if (!fgets(buffer, sizeof(buffer), fp)) {
- fclose(fp);
- g_set_error(error, db_quark(), 0, "Unexpected end of file");
- return false;
- }
-
- g_strchomp(buffer);
-
- if (0 != strcmp(DIRECTORY_INFO_BEGIN, buffer)) {
+ line = read_text_line(fp, buffer);
+ if (line == NULL || strcmp(DIRECTORY_INFO_BEGIN, line) != 0) {
fclose(fp);
g_set_error(error, db_quark(), 0, "Database corrupted");
+ g_string_free(buffer, true);
return false;
}
- while (fgets(buffer, sizeof(buffer), fp) &&
- !g_str_has_prefix(buffer, DIRECTORY_INFO_END)) {
- g_strchomp(buffer);
+ memset(tags, false, sizeof(tags));
- if (g_str_has_prefix(buffer, DIRECTORY_MPD_VERSION)) {
+ while ((line = read_text_line(fp, buffer)) != NULL &&
+ strcmp(line, DIRECTORY_INFO_END) != 0) {
+ if (g_str_has_prefix(line, DB_FORMAT_PREFIX)) {
+ format = atoi(line + sizeof(DB_FORMAT_PREFIX) - 1);
+ } else if (g_str_has_prefix(line, DIRECTORY_MPD_VERSION)) {
if (found_version) {
fclose(fp);
g_set_error(error, db_quark(), 0,
"Duplicate version line");
+ g_string_free(buffer, true);
return false;
}
found_version = true;
- } else if (g_str_has_prefix(buffer, DIRECTORY_FS_CHARSET)) {
+ } else if (g_str_has_prefix(line, DIRECTORY_FS_CHARSET)) {
const char *new_charset, *old_charset;
if (found_charset) {
fclose(fp);
g_set_error(error, db_quark(), 0,
"Duplicate charset line");
+ g_string_free(buffer, true);
return false;
}
found_charset = true;
- new_charset = &(buffer[strlen(DIRECTORY_FS_CHARSET)]);
+ new_charset = line + sizeof(DIRECTORY_FS_CHARSET) - 1;
old_charset = path_get_fs_charset();
if (old_charset != NULL
&& strcmp(new_charset, old_charset)) {
@@ -323,19 +340,50 @@ db_load(GError **error)
"\"%s\" instead of \"%s\"; "
"discarding database file",
new_charset, old_charset);
+ g_string_free(buffer, true);
return false;
}
+ } else if (g_str_has_prefix(line, DB_TAG_PREFIX)) {
+ const char *name = line + sizeof(DB_TAG_PREFIX) - 1;
+ enum tag_type tag = tag_name_parse(name);
+ if (tag == TAG_NUM_OF_ITEM_TYPES) {
+ g_set_error(error, db_quark(), 0,
+ "Unrecognized tag '%s', "
+ "discarding database file",
+ name);
+ return false;
+ }
+
+ tags[tag] = true;
} else {
fclose(fp);
g_set_error(error, db_quark(), 0,
- "Malformed line: %s", buffer);
+ "Malformed line: %s", line);
+ g_string_free(buffer, true);
+ return false;
+ }
+ }
+
+ if (format != DB_FORMAT) {
+ g_set_error(error, db_quark(), 0,
+ "Database format mismatch, "
+ "discarding database file");
+ return false;
+ }
+
+ for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
+ if (!ignore_tag_items[i] && !tags[i]) {
+ g_set_error(error, db_quark(), 0,
+ "Tag list mismatch, "
+ "discarding database file");
return false;
}
}
g_debug("reading DB");
- success = directory_load(fp, music_root, error);
+ success = directory_load(fp, music_root, buffer, error);
+ g_string_free(buffer, true);
while (fclose(fp) && errno == EINTR) ;
if (!success)