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basic/stat-util: make mtime check stricter and use entire timestamp

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Note that st_mtime member of struct stat is defined as follows,

 #define st_mtime st_mtim.tv_sec

Hence we omitted checking nanosecond part of the timestamp (struct
timespec) and possibly would miss modifications that happened within the
same second.
This commit is contained in:
Michal Sekletár 2020-11-05 17:55:25 +01:00
parent dec8e6cfb4
commit a59b0a9f76
1 changed files with 2 additions and 1 deletions
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src/basic/stat-util.c
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@ -408,7 +408,8 @@ bool stat_inode_unmodified(const struct stat *a, const struct stat *b) {
return a && b &&
(a->st_mode & S_IFMT) != 0 && /* We use the check for .st_mode if the structure was ever initialized */
((a->st_mode ^ b->st_mode) & S_IFMT) == 0 && /* same inode type */
a->st_mtime == b->st_mtime &&
a->st_mtim.tv_sec == b->st_mtim.tv_sec &&
a->st_mtim.tv_nsec == b->st_mtim.tv_nsec &&
(!S_ISREG(a->st_mode) || a->st_size == b->st_size) && /* if regular file, compare file size */
a->st_dev == b->st_dev &&
a->st_ino == b->st_ino &&