replace BSD-licensed mkdir_p() with ISC-licensed mkdirs(), this allows us

to avoid a dual-licensed util.c for no reason

ok chl@

1 files changed, 50 insertions, 73 deletions

diff --git a/usr.sbin/smtpd/util.c b/usr.sbin/smtpd/util.c
index 4da4dcba48e..3458a54599f 100644
--- a/usr.sbin/smtpd/util.c
+++ b/usr.sbin/smtpd/util.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: util.c,v 1.76 2012/09/15 15:12:11 eric Exp $	*/
+/*	$OpenBSD: util.c,v 1.77 2012/09/16 11:53:57 gilles Exp $	*/
 
 /*
  * Copyright (c) 2000,2001 Markus Friedl.  All rights reserved.
@@ -19,37 +19,6 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* the mkdir_p() function is based on bin/mkdir/mkdir.c that is covered
- * by the following license: */
-/*
- * Copyright (c) 1983, 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/queue.h>
@@ -134,59 +103,67 @@ bsnprintf(char *str, size_t size, const char *format, ...)
 	return 1;
 }
 
-/*
- * mkdir -p. Based on bin/mkdir/mkdir.c:mkpath()
- */
-int
-mkdir_p(char *path, mode_t mode)
+
+static int
+mkdirs_component(char *path, mode_t mode)
 {
-	struct stat	 sb;
-	char		*slash;
-	int		 done, exists;
-	mode_t		 dir_mode;
+	struct stat	sb;
 
-	dir_mode = mode | S_IWUSR | S_IXUSR;
+	if (stat(path, &sb) == -1) {
+		if (errno != ENOENT)
+			return 0;
+		if (mkdir(path, mode | S_IWUSR | S_IXUSR) == -1)
+			return 0;
+	}
+	else if (! S_ISDIR(sb.st_mode))
+		return 0;
 
-	slash = path;
+	return 1;
+}
 
-	for (;;) {
-		slash += strspn(slash, "/");
-		slash += strcspn(slash, "/");
+int
+mkdirs(char *path, mode_t mode)
+{
+	char	 buf[MAXPATHLEN];
+	int	 i = 0;
+	int	 done = 0;
+	char	*p;
 
-		done = (*slash == '\0');
-		*slash = '\0';
+	/* absolute path required */
+	if (*path != '/')
+		return 0;
 
-		/* skip existing path components */
-		exists = !stat(path, &sb);
-		if (!done && exists && S_ISDIR(sb.st_mode)) {
-			*slash = '/';
-			continue;
-		}
+	/* make sure we don't exceed MAXPATHLEN */
+	if (strlen(path) >= sizeof buf)
+		return 0;
 
-		if (mkdir(path, done ? mode : dir_mode) == 0) {
-			if (mode > 0777 && chmod(path, mode) < 0)
-				return (-1);
-		} else {
-			if (!exists) {
-				/* Not there */
-				return (-1);
-			}
-			if (!S_ISDIR(sb.st_mode)) {
-				/* Is there, but isn't a directory */
-				errno = ENOTDIR;
-				return (-1);
-			}
+	bzero(buf, sizeof buf);
+	for (p = path; *p; p++) {
+		if (*p == '/') {
+			if (buf[0] != '\0')
+				if (! mkdirs_component(buf, mode))
+					return 0;
+			while (*p == '/')
+				p++;
+			buf[i++] = '/';
+			buf[i++] = *p;
+			if (*p == '\0' && ++done)
+				break;
+			continue;
 		}
-
-		if (done)
-			break;
-
-		*slash = '/';
+		buf[i++] = *p;
 	}
+	if (! done)
+		if (! mkdirs_component(buf, mode))
+			return 0;
+
+	if (chmod(path, mode) == -1)
+		return 0;
 
-	return (0);
+	return 1;
 }
 
+
 int
 ckdir(const char *path, mode_t mode, uid_t owner, gid_t group, int create)
 {