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| author | Karel Zak <kzak@redhat.com> | 2021-09-08 13:44:20 +0200 |
|---|---|---|
| committer | Karel Zak <kzak@redhat.com> | 2021-10-06 11:01:54 +0200 |
| commit | ae838009d24b411203ee5e43c0a81d658dda2722 (patch) | |
| tree | cc048abc3ef25a09c78f851e5aed074ac2a03cb2 /lib/path.c | |
| parent | db9ad223d6f136d95254d73808c39786d80abf2e (diff) | |
| download | util-linux-ae838009d24b411203ee5e43c0a81d658dda2722.tar.gz | |
lib/path: add ul_path_next_dirent()
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'lib/path.c')
| -rw-r--r-- | lib/path.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/path.c b/lib/path.c index cf3a33e046..0d357966f3 100644 --- a/lib/path.c +++ b/lib/path.c @@ -968,6 +968,27 @@ int ul_path_countf_dirents(struct path_cxt *pc, const char *path, ...) return !p ? -errno : ul_path_count_dirents(pc, p); } +/* first call (when @sub is NULL) opens the directory, last call closes the diretory */ +int ul_path_next_dirent(struct path_cxt *pc, DIR **sub, const char *dirname, struct dirent **d) +{ + if (!pc || !sub || !d) + return -EINVAL; + + if (!*sub) { + *sub = ul_path_opendir(pc, dirname); + if (!*sub) + return -errno; + } + + *d = xreaddir(*sub); + if (*d) + return 0; + + closedir(*sub); + *sub = NULL; + return 1; +} + /* * Like fopen() but, @path is always prefixed by @prefix. This function is * useful in case when ul_path_* API is overkill. |