+/*
+ * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+int mkdir_recursive(const char *path, mode_t mode)
+{
+ int ret;
+ char *p, tmp[PATH_MAX];
+ size_t len;
+ mode_t old_umask;
+
+ ret = snprintf(tmp, sizeof(tmp), "%s", path);
+ if (ret < 0) {
+ perror("snprintf mkdir");
+ goto error;
+ }
+
+ len = ret;
+ if (tmp[len - 1] == '/') {
+ tmp[len - 1] = 0;
+ }
+
+ old_umask = umask(0);
+ for (p = tmp + 1; *p; p++) {
+ if (*p == '/') {
+ *p = 0;
+ ret = mkdir(tmp, mode);
+ if (ret < 0) {
+ if (!(errno == EEXIST)) {
+ perror("mkdir recursive");
+ ret = errno;
+ goto umask_error;
+ }
+ }
+ *p = '/';
+ }
+ }
+
+ ret = mkdir(tmp, mode);
+ if (ret < 0) {
+ ret = errno;
+ }
+
+umask_error:
+ umask(old_umask);
+error:
+ return ret;
+}