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Annotation of src/usr.bin/patch/mkpath.c, Revision 1.4

1.4     ! guenther    1: /*     $OpenBSD: mkpath.c,v 1.3 2013/11/12 13:51:42 deraadt Exp $ */
1.1       espie       2: /*
                      3:  * Copyright (c) 1983, 1992, 1993
                      4:  *     The Regents of the University of California.  All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  * 3. Neither the name of the University nor the names of its contributors
                     15:  *    may be used to endorse or promote products derived from this software
                     16:  *    without specific prior written permission.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     19:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     20:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     21:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     22:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     23:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     24:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     25:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     26:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     27:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     28:  * SUCH DAMAGE.
                     29:  */
                     30:
                     31: #include <sys/types.h>
                     32: #include <sys/stat.h>
                     33: #include <err.h>
                     34: #include <errno.h>
                     35: #include <string.h>
1.3       deraadt    36:
                     37: #include "common.h"
                     38: #include "util.h"
1.1       espie      39:
                     40: /* Code taken directly from mkdir(1).
                     41:
                     42:  * mkpath -- create directories.
                     43:  *     path     - path
                     44:  */
                     45: int
1.2       otto       46: mkpath(char *path)
1.1       espie      47: {
                     48:        struct stat sb;
                     49:        char *slash;
                     50:        int done = 0;
                     51:
                     52:        slash = path;
                     53:
                     54:        while (!done) {
                     55:                slash += strspn(slash, "/");
                     56:                slash += strcspn(slash, "/");
                     57:
                     58:                done = (*slash == '\0');
                     59:                *slash = '\0';
                     60:
                     61:                if (stat(path, &sb)) {
1.2       otto       62:                        if (errno != ENOENT || (mkdir(path, 0777) &&
1.1       espie      63:                            errno != EEXIST)) {
                     64:                                warn("%s", path);
                     65:                                return (-1);
                     66:                        }
                     67:                } else if (!S_ISDIR(sb.st_mode)) {
1.4     ! guenther   68:                        warnc(ENOTDIR, "%s", path);
1.1       espie      69:                        return (-1);
                     70:                }
                     71:
                     72:                *slash = '/';
                     73:        }
                     74:
                     75:        return (0);
                     76: }
                     77: