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