1 /** @file
2 
3   Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
4   This program and the accompanying materials are licensed and made available under
5   the terms and conditions of the BSD License that accompanies this distribution.
6   The full text of the license may be found at
7   http://opensource.org/licenses/bsd-license.
8 
9   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11 
12  * Copyright (c) 1990, 1993
13  *  The Regents of the University of California.  All rights reserved.
14  *
15  * This code is derived from software contributed to Berkeley by
16  * Chris Torek.
17  *
18  * Redistribution and use in source and binary forms, with or without
19  * modification, are permitted provided that the following conditions
20  * are met:
21  * 1. Redistributions of source code must retain the above copyright
22  *    notice, this list of conditions and the following disclaimer.
23  * 2. Redistributions in binary form must reproduce the above copyright
24  *    notice, this list of conditions and the following disclaimer in the
25  *    documentation and/or other materials provided with the distribution.
26  * 3. Neither the name of the University nor the names of its contributors
27  *    may be used to endorse or promote products derived from this software
28  *    without specific prior written permission.
29  *
30  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40  * SUCH DAMAGE.
41 
42     tmpfile.c 8.1 (Berkeley) 6/4/93
43     NetBSD: tmpfile.c,v 1.11 2003/08/07 16:43:33 agc Exp
44 **/
45 #include  <LibConfig.h>
46 #include  <sys/EfiCdefs.h>
47 
48 #include  "namespace.h"
49 #include  <sys/types.h>
50 #include  <signal.h>
51 #include  <errno.h>
52 #include  <stdio.h>
53 #include  <stdlib.h>
54 #include  <string.h>
55 #include  <paths.h>
56 #include  <unistd.h>
57 
58 #define TRAILER "tmp.XXXX"
59 
60 FILE *
tmpfile()61 tmpfile()
62 {
63   //sigset_t set, oset;
64   FILE *fp;
65   int fd, sverrno;
66   char buf[sizeof(_PATH_TMP) + sizeof(TRAILER)];
67 
68   (void)memcpy(buf, _PATH_TMP, sizeof(_PATH_TMP) - 1);
69   (void)memcpy(buf + sizeof(_PATH_TMP) - 1, TRAILER, sizeof(TRAILER));
70 
71   //sigfillset(&set);
72   //(void)sigprocmask(SIG_BLOCK, &set, &oset);
73 
74   fd = mkstemp(buf);
75   if (fd != -1) {
76     /*  Changed from unlink(buf) because of differences between the behavior
77         of Unix and UEFI file systems.
78     */
79     (void)DeleteOnClose(fd);
80   }
81 
82   //(void)sigprocmask(SIG_SETMASK, &oset, NULL);
83 
84   if (fd == -1)
85     return (NULL);
86 
87   if ((fp = fdopen(fd, "w+")) == NULL) {
88     sverrno = errno;
89     (void)close(fd);
90     errno = sverrno;
91     return (NULL);
92   }
93   return (fp);
94 }
95