int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f) {
_cleanup_strv_free_ char **s = NULL;
int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f) {
_cleanup_strv_free_ char **s = NULL;