Systemd/src/basic/glob-util.c
Lennart Poettering 0c69794138 tree-wide: remove Lennart's copyright lines
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00

74 lines
1.9 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
#include <dirent.h>
#include <errno.h>
#include <glob.h>
#include <sys/types.h>
#include "dirent-util.h"
#include "glob-util.h"
#include "macro.h"
#include "path-util.h"
#include "strv.h"
static void closedir_wrapper(void* v) {
(void) closedir(v);
}
int safe_glob(const char *path, int flags, glob_t *pglob) {
int k;
/* We want to set GLOB_ALTDIRFUNC ourselves, don't allow it to be set. */
assert(!(flags & GLOB_ALTDIRFUNC));
if (!pglob->gl_closedir)
pglob->gl_closedir = closedir_wrapper;
if (!pglob->gl_readdir)
pglob->gl_readdir = (struct dirent *(*)(void *)) readdir_no_dot;
if (!pglob->gl_opendir)
pglob->gl_opendir = (void *(*)(const char *)) opendir;
if (!pglob->gl_lstat)
pglob->gl_lstat = lstat;
if (!pglob->gl_stat)
pglob->gl_stat = stat;
errno = 0;
k = glob(path, flags | GLOB_ALTDIRFUNC, NULL, pglob);
if (k == GLOB_NOMATCH)
return -ENOENT;
if (k == GLOB_NOSPACE)
return -ENOMEM;
if (k != 0)
return errno > 0 ? -errno : -EIO;
if (strv_isempty(pglob->gl_pathv))
return -ENOENT;
return 0;
}
int glob_exists(const char *path) {
_cleanup_globfree_ glob_t g = {};
int k;
assert(path);
k = safe_glob(path, GLOB_NOSORT|GLOB_BRACE, &g);
if (k == -ENOENT)
return false;
if (k < 0)
return k;
return true;
}
int glob_extend(char ***strv, const char *path) {
_cleanup_globfree_ glob_t g = {};
int k;
k = safe_glob(path, GLOB_NOSORT|GLOB_BRACE, &g);
if (k < 0)
return k;
return strv_extend_strv(strv, g.gl_pathv, false);
}