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conf: Use ino64_t to save and compare inode numbers

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On 32-bit platforms when not using the large-file-support ABI,
struct stat64 contains ino64_t which is 64-bit, while ino_t is only
32-bit.

snd_config_update_r() checks whether a file has been replaced by saving
the ino member of a struct stat64 and comparing it with a previously-saved
inode number. On 32-bit platforms, assigning the 64-bit member of struct
stat64 to a 32-bit member of struct finfo will truncate it modulo 1<<32,
which could conceivably result in libasound not reloading configuration
when it should (although the inode number space is large enough to make
this failure mode highly unlikely).

Fixes: https://github.com/alsa-project/alsa-lib/pull/231
Signed-off-by: Simon McVittie <smcv@collabora.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Simon McVittie 2022-05-25 12:33:42 +01:00 • committed by Jaroslav Kysela
parent d836146e91
commit 87ff5318e3
2 changed files with 2 additions and 1 deletions
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include/local.h
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@ -84,6 +84,7 @@
#define scandir64 scandir
#define versionsort64 versionsort
#define alphasort64 alphasort
#define ino64_t ino_t
#endif
#define _snd_config_iterator list_head