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/*
* Copyright (c) 1997-1999 Erez Zadok
* Copyright (c) 1990 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* %W% (Berkeley) %G%
*
* $Id: util.c,v 1.2 1999/01/10 21:54:39 ezk Exp $
*
*/
/*
* General Utilities.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amu.h>
char *
strnsave(const char *str, int len)
{
char *sp = (char *) xmalloc(len + 1);
memmove(sp, str, len);
sp[len] = 0;
return sp;
}
/*
* Concatenate three strings and store in buffer pointed to
* by p, making p large enough to hold the strings
*/
char *
str3cat(char *p, char *s1, char *s2, char *s3)
{
int l1 = strlen(s1);
int l2 = strlen(s2);
int l3 = strlen(s3);
p = (char *) xrealloc(p, l1 + l2 + l3 + 1);
memmove(p, s1, l1);
memmove(p + l1, s2, l2);
memmove(p + l1 + l2, s3, l3 + 1);
return p;
}
/*
* Make all the directories in the path.
*/
int
mkdirs(char *path, int mode)
{
/*
* take a copy in case path is in readonly store
*/
char *p2 = strdup(path);
char *sp = p2;
struct stat stb;
int error_so_far = 0;
/*
* Skip through the string make the directories.
* Mostly ignore errors - the result is tested at the end.
*
* This assumes we are root so that we can do mkdir in a
* mode 555 directory...
*/
while ((sp = strchr(sp + 1, '/'))) {
*sp = '\0';
if (mkdir(p2, mode) < 0) {
error_so_far = errno;
} else {
#ifdef DEBUG
dlog("mkdir(%s)", p2);
#endif /* DEBUG */
}
*sp = '/';
}
if (mkdir(p2, mode) < 0) {
error_so_far = errno;
} else {
#ifdef DEBUG
dlog("mkdir(%s)", p2);
#endif /* DEBUG */
}
XFREE(p2);
return stat(path, &stb) == 0 &&
(stb.st_mode & S_IFMT) == S_IFDIR ? 0 : error_so_far;
}
/*
* Remove as many directories in the path as possible.
* Give up if the directory doesn't appear to have
* been created by Amd (not mode dr-x) or an rmdir
* fails for any reason.
*/
void
rmdirs(char *dir)
{
char *xdp = strdup(dir);
char *dp;
do {
struct stat stb;
/*
* Try to find out whether this was
* created by amd. Do this by checking
* for owner write permission.
*/
if (stat(xdp, &stb) == 0 && (stb.st_mode & 0200) == 0) {
if (rmdir(xdp) < 0) {
if (errno != ENOTEMPTY &&
errno != EBUSY &&
errno != EEXIST &&
errno != EINVAL)
plog(XLOG_ERROR, "rmdir(%s): %m", xdp);
break;
} else {
#ifdef DEBUG
dlog("rmdir(%s)", xdp);
#endif /* DEBUG */
}
} else {
break;
}
dp = strrchr(xdp, '/');
if (dp)
*dp = '\0';
} while (dp && dp > xdp);
XFREE(xdp);
}
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