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/* $NetBSD: tempnam.c,v 1.19 2005/07/27 13:23:07 drochner 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. 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 <LibConfig.h>
#include <sys/EfiCdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)tempnam.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: tempnam.c,v 1.19 2005/07/27 13:23:07 drochner Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <sys/param.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/EfiSysCall.h>
#include <paths.h>
#include "reentrant.h"
#include "local.h"
__warn_references(tempnam,
"warning: tempnam() possibly used unsafely, use mkstemp() or mkdtemp()")
static const char *
trailsl(const char *f)
{
const char *s = f;
while (*s)
s++;
return (f != s && s[-1] == '/') ? "" : "/";
}
static char *
gentemp(char *name, size_t len, const char *tmp, const char *pfx)
{
(void)snprintf(name, len, "%s%s%sXXXX", tmp, trailsl(tmp), pfx);
return _mktemp(name);
}
char *
tempnam(const char *dir, const char *pfx)
{
int sverrno;
char *name, *f;
const char *tmp;
if ((name = malloc((size_t)MAXPATHLEN)) == NULL)
return NULL;
if (!pfx)
pfx = "tmp.";
if ((tmp = getenv("TMPDIR")) != NULL &&
(f = gentemp(name, (size_t)MAXPATHLEN, tmp, pfx)) != NULL)
return f;
if (dir != NULL &&
(f = gentemp(name, (size_t)MAXPATHLEN, dir, pfx)) != NULL)
return f;
//if ((f = gentemp(name, (size_t)MAXPATHLEN, P_tmpdir, pfx)) != NULL)
// return f;
if ((f = gentemp(name, (size_t)MAXPATHLEN, _PATH_TMP, pfx)) != NULL)
return f;
sverrno = errno;
free(name);
errno = sverrno;
return(NULL);
}
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