Rewrote mkdir (and touched lots of things in the process).

libbb/make_directory.c

@@ -0,0 +1,66 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini make_directory implementation for busybox
+ *
+ * Copyright (C) 2001  Matt Kraai.
+ *
+ * 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
+ *
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "libbb.h"
+
+/* Create the directory PATH with mode MODE, or the default if MODE is -1.
+ * Also create parent directories as necessary if flags contains
+ * FILEUTILS_RECUR.  */
+
+int make_directory (char *path, mode_t mode, int flags)
+{
+	if (!(flags & FILEUTILS_RECUR)) {
+		if (mkdir (path, 0777) < 0) {
+			perror_msg ("Cannot create directory `%s'", path);
+			return -1;
+		}
+
+		if (mode != -1 && chmod (path, mode) < 0) {
+			perror_msg ("Cannot set permissions of directory `%s'", path);
+			return -1;
+		}
+	} else {
+		struct stat st;
+
+		if (stat (path, &st) < 0 && errno == ENOENT) {
+			char *parent = dirname (path);
+			mode_t mask = umask (0);
+			umask (mask);
+
+			if (make_directory (parent, (0777 & ~mask) | 0300,
+						FILEUTILS_RECUR) < 0)
+				return -1;
+			free (parent);
+
+			if (make_directory (path, mode, 0) < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}