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playlist_save: fix dir may not exist

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Attempting to save a playlist to a dir that does
not exist would make playlist_save panic.

https://forums.rockbox.org/index.php/topic,55241

Change-Id: Ibf55255949782315e997733b519c590ac53221a2
This commit is contained in:
Christian Soffke 2025-03-11 06:04:09 +01:00
parent 69664cc4e9
commit fb115e5bdb
1 changed files with 18 additions and 2 deletions
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20
apps/menus/playlist_menu.c
View file

@ -39,6 +39,8 @@
#include "playlist_catalog.h"
#include "splash.h"
#include "general.h"
#include "pathfuncs.h"
#include "dir.h"
/* load a screen to save the playlist passed in (or current playlist if NULL is passed) */
int save_playlist_screen(struct playlist_info* playlist)
@ -72,11 +74,12 @@ int save_playlist_screen(struct playlist_info* playlist)
if (len <= 1) /* root or dynamic playlist */
create_numbered_filename(temp, directoryonly, PLAYLIST_UNTITLED_PREFIX, ".m3u8",
1 IF_CNFN_NUM_(, NULL));
else if (!strcmp((temp + len - 1), "/")) /* dir playlists other than root */
else if (temp[len - 1] == PATH_SEPCH /* dir playlists other than root */
&& temp[len] == '\0')
{
temp[len - 1] = '\0';
if ((p = strrchr(temp, '/'))) /* use last path component as playlist name */
if ((p = strrchr(temp, PATH_SEPCH))) /* use last path component as playlist name */
{
strlcat(directoryonly, p, sizeof(directoryonly));
strlcat(directoryonly, ".m3u8", sizeof(directoryonly));
@ -91,6 +94,19 @@ int save_playlist_screen(struct playlist_info* playlist)
playlist ? playlist->filename :
playlist_get_current()->filename))
{
/* Create dir if necessary */
if ((p = strrchr(temp, PATH_SEPCH)) && p != (char *) temp)
{
*p = '\0';
if (!dir_exists(temp) && mkdir(temp) < 0)
{
splashf(HZ, ID2P(LANG_CATALOG_NO_DIRECTORY), temp);
return 0;
}
*p = PATH_SEPCH;
}
playlist_save(playlist, temp);
/* reload in case playlist was saved to cwd */