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/* $OpenBSD: misc.c,v 1.11 2009/10/27 23:59:42 deraadt Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Hugh Smith at The University of Guelph.
*
* 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/param.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pathnames.h"
#include "extern.h"
char *tname = "temporary file";
int
tmp(void)
{
static char *envtmp;
sigset_t set, oset;
static int first;
int fd;
char path[MAXPATHLEN];
if (!first) {
envtmp = getenv("TMPDIR");
first = 1;
}
if (envtmp)
(void)snprintf(path, sizeof(path), "%s/%s", envtmp,
_NAME_RANTMP);
else
strlcpy(path, _PATH_RANTMP, sizeof(path));
sigemptyset(&set);
sigaddset(&set, SIGHUP);
sigaddset(&set, SIGINT);
sigaddset(&set, SIGQUIT);
sigaddset(&set, SIGTERM);
(void)sigprocmask(SIG_BLOCK, &set, &oset);
if ((fd = mkstemp(path)) == -1)
error(tname);
(void)unlink(path);
(void)sigprocmask(SIG_SETMASK, &oset, (sigset_t *)NULL);
return(fd);
}
void *
emalloc(size_t len)
{
void *p;
if (!(p = malloc(len)))
error(archive);
return(p);
}
const char *
rname(const char *path)
{
const char *ind;
return((ind = strrchr(path, '/')) ? ind + 1 : path);
}
void
badfmt(void)
{
errno = EFTYPE;
error(archive);
}
void
error(const char *name)
{
err(1, "%s", name);
}
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