/* Error-checking replacement for "mkdir -p". Copyright (C) 2018-2023 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <support/support.h> #include <support/check.h> #include <support/xunistd.h> #include <stdlib.h> #include <string.h> #include <errno.h> /* Equivalent of "mkdir -p". Any failures cause FAIL_EXIT1 so no return code is needed. */ void xmkdirp (const char *path, mode_t mode) { struct stat s; const char *slash_p; int rv; if (path[0] == 0) return; if (stat (path, &s) == 0) { if (S_ISDIR (s.st_mode)) return; errno = EEXIST; FAIL_EXIT1 ("mkdir_p (\"%s\", 0%o): %m", path, mode); } slash_p = strrchr (path, '/'); if (slash_p != NULL) { while (slash_p > path && slash_p[-1] == '/') --slash_p; if (slash_p > path) { char *parent = xstrndup (path, slash_p - path); xmkdirp (parent, mode); free (parent); } } rv = mkdir (path, mode); if (rv != 0) FAIL_EXIT1 ("mkdir_p (\"%s\", 0%o): %m", path, mode); return; }