Home | History | Annotate | Line # | Download | only in patch 
      1 /*
      2  *	$OpenBSD: mkpath.c,v 1.2 2005/06/20 07:14:06 otto Exp $
      3  *	$DragonFly: src/usr.bin/patch/mkpath.c,v 1.1 2007/09/29 23:11:10 swildner Exp $
      4  *	$NetBSD: mkpath.c,v 1.1 2008/09/19 18:33:34 joerg Exp $
      5  */
      6 
      7 /*
      8  * Copyright (c) 1983, 1992, 1993
      9  *	The Regents of the University of California.  All rights reserved.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __RCSID("$NetBSD: mkpath.c,v 1.1 2008/09/19 18:33:34 joerg Exp $");
     38 
     39 #include <sys/types.h>
     40 #include <sys/stat.h>
     41 #include <err.h>
     42 #include <errno.h>
     43 #include <string.h>
     44 
     45 int	mkpath(char *);
     46 
     47 /* Code taken directly from mkdir(1).
     48 
     49  * mkpath -- create directories.
     50  *	path     - path
     51  */
     52 int
     53 mkpath(char *path)
     54 {
     55 	struct stat sb;
     56 	char *slash;
     57 	int done = 0;
     58 
     59 	slash = path;
     60 
     61 	while (!done) {
     62 		slash += strspn(slash, "/");
     63 		slash += strcspn(slash, "/");
     64 
     65 		done = (*slash == '\0');
     66 		*slash = '\0';
     67 
     68 		if (stat(path, &sb)) {
     69 			if (errno != ENOENT || (mkdir(path, 0777) &&
     70 			    errno != EEXIST)) {
     71 				warn("%s", path);
     72 				return (-1);
     73 			}
     74 		} else if (!S_ISDIR(sb.st_mode)) {
     75 			warnx("%s: %s", path, strerror(ENOTDIR));
     76 			return (-1);
     77 		}
     78 
     79 		*slash = '/';
     80 	}
     81 
     82 	return (0);
     83 }
     84 
     85