freebsd-dev/usr.bin/ranlib/misc.c

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/*-
* Copyright (c) 1990, 1993
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* 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.
*/
#ifndef lint
#if 0
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static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
#include <sys/param.h>
#include <sys/signal.h>
#include <err.h>
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#include <errno.h>
#include <signal.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
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#include "pathnames.h"
extern char *archive; /* archive name */
char *tname = "temporary file"; /* temporary file "name" */
void error __P(( char * ));
int
tmp(void)
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{
sigset_t set, oset;
int fd;
char *envtmp, path[MAXPATHLEN];
if ((envtmp = getenv("TMPDIR")) != NULL)
(void)sprintf(path, "%s%s", envtmp, strrchr(_PATH_RANTMP, '/'));
else
bcopy(_PATH_RANTMP, path, sizeof(_PATH_RANTMP));
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sigfillset(&set);
(void)sigprocmask(SIG_BLOCK, &set, &oset);
if ((fd = mkstemp(path)) == -1)
error(path);
(void)unlink(path);
(void)sigprocmask(SIG_SETMASK, &oset, NULL);
return(fd);
}
void *
emalloc(len)
int len;
{
void *p;
if ((p = malloc((u_int)len)) == NULL)
error(archive);
return(p);
}
char *
rname(path)
char *path;
{
register char *ind;
return((ind = rindex(path, '/')) ? ind + 1 : path);
}
void
badfmt(void)
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{
errno = EFTYPE;
error(archive);
}
void
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error(name)
char *name;
{
err(1, "%s", name);
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}