2 * Copyright (c) 1997-1999 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgment:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * $Id: util.c,v 1.2 1999/01/10 21:54:39 ezk Exp $
51 #endif /* HAVE_CONFIG_H */
57 strnsave(const char *str, int len)
59 char *sp = (char *) xmalloc(len + 1);
60 memmove(sp, str, len);
68 * Concatenate three strings and store in buffer pointed to
69 * by p, making p large enough to hold the strings
72 str3cat(char *p, char *s1, char *s2, char *s3)
78 p = (char *) xrealloc(p, l1 + l2 + l3 + 1);
80 memmove(p + l1, s2, l2);
81 memmove(p + l1 + l2, s3, l3 + 1);
87 * Make all the directories in the path.
90 mkdirs(char *path, int mode)
93 * take a copy in case path is in readonly store
95 char *p2 = strdup(path);
101 * Skip through the string make the directories.
102 * Mostly ignore errors - the result is tested at the end.
104 * This assumes we are root so that we can do mkdir in a
105 * mode 555 directory...
107 while ((sp = strchr(sp + 1, '/'))) {
109 if (mkdir(p2, mode) < 0) {
110 error_so_far = errno;
113 dlog("mkdir(%s)", p2);
119 if (mkdir(p2, mode) < 0) {
120 error_so_far = errno;
123 dlog("mkdir(%s)", p2);
129 return stat(path, &stb) == 0 &&
130 (stb.st_mode & S_IFMT) == S_IFDIR ? 0 : error_so_far;
135 * Remove as many directories in the path as possible.
136 * Give up if the directory doesn't appear to have
137 * been created by Amd (not mode dr-x) or an rmdir
138 * fails for any reason.
143 char *xdp = strdup(dir);
149 * Try to find out whether this was
150 * created by amd. Do this by checking
151 * for owner write permission.
153 if (stat(xdp, &stb) == 0 && (stb.st_mode & 0200) == 0) {
154 if (rmdir(xdp) < 0) {
155 if (errno != ENOTEMPTY &&
159 plog(XLOG_ERROR, "rmdir(%s): %m", xdp);
163 dlog("rmdir(%s)", xdp);
170 dp = strrchr(xdp, '/');
173 } while (dp && dp > xdp);