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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
* Chris Torek.
*
* 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)
static char sccsid
[] = "@(#)tmpfile.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <paths.h>
FILE
*
tmpfile()
{
sigset_t set
, oset
;
FILE
*fp
;
int fd
, sverrno
;
#define TRAILER "tmp.XXXXXX"
char buf
[sizeof(_PATH_TMP
) + sizeof(TRAILER
)];
(void)memcpy(buf
, _PATH_TMP
, sizeof(_PATH_TMP
) - 1);
(void)memcpy(buf
+ sizeof(_PATH_TMP
) - 1, TRAILER
, sizeof(TRAILER
));
sigfillset
(&set
);
(void)sigprocmask
(SIG_BLOCK
, &set
, &oset
);
fd
= mkstemp
(buf
);
if (fd
!= -1)
(void)unlink
(buf
);
(void)sigprocmask
(SIG_SETMASK
, &oset
, NULL
);
if (fd
== -1)
return (NULL
);
if ((fp
= fdopen(fd
, "w+")) == NULL
) {
sverrno
= errno
;
(void)close
(fd
);
errno
= sverrno
;
return (NULL
);
}
return (fp
);
}