diff options
author | Jim Meyering <jim@meyering.net> | 2003-05-02 10:44:32 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2003-05-02 10:44:32 +0000 |
commit | 4f6fe96afec9b2693564131d5e135a6e193f5a71 (patch) | |
tree | 0553a397575fd10b228d6ef41e3279a91f2a2822 /src | |
parent | e25854fbd7bb9a59908dd04ea39d8d23d4f765ae (diff) | |
download | coreutils-4f6fe96afec9b2693564131d5e135a6e193f5a71.tar.xz |
Factor out common code.
(readdir_ignoring_dotdirs): New function.
(is_empty_dir): Use it here.
(remove_cwd_entries): Use it here.
Diffstat (limited to 'src')
-rw-r--r-- | src/remove.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/src/remove.c b/src/remove.c index eac7cfa10..a8be3dac9 100644 --- a/src/remove.c +++ b/src/remove.c @@ -508,34 +508,37 @@ AD_is_removable (Dirstack_state const *ds, char const *file) return ! (top->unremovable && hash_lookup (top->unremovable, file)); } +/* A wrapper for readdir so that callers don't see entries for `.' or `..'. */ +static struct dirent * +readdir_ignoring_dotdirs (DIR *dirp) +{ + while (1) + { + struct dirent *dp = readdir (dirp); + if (dp == NULL || ! DOT_OR_DOTDOT (dp->d_name)) + return dp; + } +} + +/* Return nonzero if DIR is determined to be an empty directory + or if opendir or readdir fails. */ static bool is_empty_dir (char const *dir) { DIR *dirp = opendir (dir); + struct dirent *dp; + int saved_errno; + if (dirp == NULL) return false; - while (1) - { - struct dirent *dp; - const char *f; - - errno = 0; - dp = readdir (dirp); - if (dp == NULL) - { - int saved_errno = errno; - closedir (dirp); - return saved_errno == 0 ? true : false; - } - - f = dp->d_name; - if ( ! DOT_OR_DOTDOT (f)) - { - closedir (dirp); - return false; - } - } + errno = 0; + dp = readdir_ignoring_dotdirs (dirp); + saved_errno = errno; + closedir (dirp); + if (dp != NULL) + return false; + return saved_errno == 0 ? true : false; } /* Prompt whether to remove FILENAME, if required via a combination of @@ -824,7 +827,7 @@ remove_cwd_entries (Dirstack_state *ds, char **subdir, struct stat *subdir_sb, /* Set errno to zero so we can distinguish between a readdir failure and when readdir simply finds that there are no more entries. */ errno = 0; - if ((dp = readdir (dirp)) == NULL) + if ((dp = readdir_ignoring_dotdirs (dirp)) == NULL) { if (errno) { @@ -840,8 +843,6 @@ remove_cwd_entries (Dirstack_state *ds, char **subdir, struct stat *subdir_sb, } f = dp->d_name; - if (DOT_OR_DOTDOT (f)) - continue; /* Skip files we've already tried/failed to remove. */ if ( ! AD_is_removable (ds, f)) |