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tempnam.c
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1996-09-28
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96 lines
/* $NetBSD: tempnam.c,v 1.6 1995/02/02 02:10:42 jtc Exp $ */
/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. 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. 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)tempnam.c 8.1 (Berkeley) 6/4/93";
#endif
static char rcsid[] = "$NetBSD: tempnam.c,v 1.6 1995/02/02 02:10:42 jtc Exp $";
#endif /* LIBC_SCCS and not lint */
#define _KERNEL
#include "ixemul.h"
#include <sys/param.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <paths.h>
char *
tempnam(dir, pfx)
const char *dir, *pfx;
{
int sverrno;
char *f, *name;
if (!(name = malloc(MAXPATHLEN)))
return(NULL);
if (!pfx)
pfx = "tmp.";
if ((f = getenv("TMPDIR"))) {
(void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
*(f + strlen(f) - 1) == '/'? "": "/", pfx);
if ((f = mktemp(name)))
return(f);
}
if ((f = (char *)dir)) {
(void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
*(f + strlen(f) - 1) == '/'? "": "/", pfx);
if ((f = mktemp(name)))
return(f);
}
f = P_tmpdir;
(void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
if ((f = mktemp(name)))
return(f);
f = _PATH_TMP;
(void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
if ((f = mktemp(name)))
return(f);
sverrno = errno;
free(name);
errno = sverrno;
return(NULL);
}