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/* $OpenBSD: mktemp.c,v 1.6 2001/10/01 17:08:30 millert Exp $ */
/*
* Copyright (c) 1996, 2000, 2001 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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 "config.h" */
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#include <stdio.h>
#include <unistd.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif /* HAVE_STDLIB_H */
#ifdef HAVE_STRING_H
# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
# include <memory.h>
# endif
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif /* HAVE_STRINGS_H */
#endif /* HAVE_STRING_H */
#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
#include <malloc.h>
#endif /* HAVE_MALLOC_H && !STDC_HEADERS */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif /* HAVE_PATHS_H */
#include <errno.h>
#ifndef _PATH_TMP
#define _PATH_TMP "/tmp"
#endif
#ifdef HAVE_PROGNAME
extern char *__progname;
#else
char *__progname;
#endif
void usage __P((void)) __attribute__((__noreturn__));
int
main(argc, argv)
int argc;
char **argv;
{
int ch, fd, uflag = 0, quiet = 0, tflag = 0, makedir = 0;
char *cp, *template, *tempfile, *prefix = _PATH_TMP;
size_t plen;
extern char *optarg;
extern int optind;
#ifndef HAVE_PROGNAME
__progname = argv[0];
#endif
while ((ch = getopt(argc, argv, "dp:qtuV")) != -1)
switch(ch) {
case 'd':
makedir = 1;
break;
case 'p':
prefix = optarg;
tflag = 1;
break;
case 'q':
quiet = 1;
break;
case 't':
tflag = 1;
break;
case 'u':
uflag = 1;
break;
case 'V':
printf("%s version debianutils-%s\n", __progname, "2.7");
exit(0);
default:
usage();
}
/* If no template specified use a default one (implies -t mode) */
switch (argc - optind) {
case 1:
template = argv[optind];
break;
case 0:
template = "tmp.XXXXXX";
tflag = 1;
break;
default:
usage();
}
if (tflag) {
if (strchr(template, '/')) {
if (!quiet)
(void)fprintf(stderr,
"%s: template must not contain directory separators in -t mode\n", __progname);
exit(1);
}
cp = getenv("TMPDIR");
if (cp != NULL && *cp != '\0')
prefix = cp;
plen = strlen(prefix);
while (plen != 0 && prefix[plen - 1] == '/')
plen--;
tempfile = (char *)malloc(plen + 1 + strlen(template) + 1);
if (tempfile == NULL) {
if (!quiet)
(void)fprintf(stderr,
"%s: cannot allocate memory\n", __progname);
exit(1);
}
(void)memcpy(tempfile, prefix, plen);
tempfile[plen] = '/';
(void)strcpy(tempfile + plen + 1, template); /* SAFE */
} else {
if ((tempfile = strdup(template)) == NULL) {
if (!quiet)
(void)fprintf(stderr,
"%s: cannot allocate memory\n", __progname);
exit(1);
}
}
if (makedir) {
if (mkdtemp(tempfile) == NULL) {
if (!quiet) {
(void)fprintf(stderr,
"%s: cannot make temp dir %s: %s\n",
__progname, tempfile, strerror(errno));
}
exit(1);
}
if (uflag)
(void)rmdir(tempfile);
} else {
if ((fd = mkstemp(tempfile)) < 0) {
if (!quiet) {
(void)fprintf(stderr,
"%s: cannot create temp file %s: %s\n",
__progname, tempfile, strerror(errno));
}
exit(1);
}
(void)close(fd);
if (uflag)
(void)unlink(tempfile);
}
(void)puts(tempfile);
free(tempfile);
exit(0);
}
void
usage()
{
(void)fprintf(stderr,
"Usage: %s [-V] | [-dqtu] [-p prefix] [template]\n",
__progname);
exit(1);
}
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