int find_binary(const char *name, char **filename) {
assert(name);
- assert(filename);
if (strchr(name, '/')) {
- char *p;
+ if (access(name, X_OK) < 0)
+ return -errno;
+
+ if (filename) {
+ char *p;
- if (path_is_absolute(name))
- p = strdup(name);
- else
p = path_make_absolute_cwd(name);
- if (!p)
- return -ENOMEM;
+ if (!p)
+ return -ENOMEM;
+
+ *filename = p;
+ }
- *filename = p;
return 0;
} else {
const char *path;
path = DEFAULT_PATH;
FOREACH_WORD_SEPARATOR(w, l, path, ":", state) {
- char *p;
+ _cleanup_free_ char *p = NULL;
if (asprintf(&p, "%.*s/%s", (int) l, w, name) < 0)
return -ENOMEM;
- if (access(p, X_OK) < 0) {
- free(p);
+ if (access(p, X_OK) < 0)
continue;
- }
- path_kill_slashes(p);
- *filename = p;
+ if (filename) {
+ path_kill_slashes(p);
+ *filename = p;
+ p = NULL;
+ }
return 0;
}
return changed;
}
+
+int fsck_exists(const char *fstype) {
+ const char *checker;
+
+ checker = strappenda("fsck.", fstype);
+ return find_binary(checker, NULL);
+}