/*  $NetBSD: tmpfile.c,v 1.11 2003/08/07 16:43:33 agc Exp $ */

/*-
 * 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. 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[] = "@(#)tmpfile.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: tmpfile.c,v 1.11 2003/08/07 16:43:33 agc Exp $");
#endif
#endif /* LIBC_SCCS and not lint */

#include  "namespace.h"
#include  <sys/types.h>
#include  <sys/EfiSysCall.h>
#include  <signal.h>
#include  <errno.h>
#include  <stdio.h>
#include  <stdlib.h>
#include  <string.h>
#include  <paths.h>

#define TRAILER "tmp.XXXX"

FILE *
tmpfile()
{
  //sigset_t set, oset;
  FILE *fp;
  int fd, sverrno;
  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);
}