2 * Heirloom mailx - a mail user agent derived from Berkeley Mail.
4 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
7 * Copyright (c) 1980, 1993
8 * The Regents of the University of California. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 static char sccsid
[] = "@(#)temp.c 2.8 (gritter) 3/4/06";
52 * Mail -- a mail program
54 * Temporary file handling.
60 * Create a temporary file in tmpdir, use prefix for its name,
61 * store the unique name in fn, and return a stdio FILE pointer
63 * The permissions for the newly created file are given in bits.
66 Ftemp(char **fn
, char *prefix
, char *mode
, int bits
, int register_file
)
71 *fn
= smalloc(strlen(tmpdir
) + strlen(prefix
) + 8);
75 strcat(*fn
, "XXXXXX");
77 if ((fd
= mkstemp(*fn
)) < 0)
79 if (fchmod(fd
, bits
) < 0)
81 #else /* !HAVE_MKSTEMP */
82 if (mktemp(*fn
) == NULL
)
84 if ((fd
= open(*fn
, O_CREAT
|O_EXCL
|O_RDWR
, bits
)) < 0)
86 #endif /* !HAVE_MKSTEMP */
88 fp
= Fdopen(fd
, mode
);
90 fp
= fdopen(fd
, mode
);
91 fcntl(fd
, F_SETFD
, FD_CLOEXEC
);
100 * Free the resources associated with the given filename. To be
101 * called after unlink().
102 * Since this function can be called after receiving a signal,
103 * the variable must be made NULL first and then free()d, to avoid
104 * more than one free() call in all circumstances.
120 if ((cp
= getenv("TMPDIR")) != NULL
) {
121 tmpdir
= smalloc(strlen(cp
) + 1);
126 if (myname
!= NULL
) {
127 if (getuserid(myname
) < 0) {
128 printf(catgets(catd
, CATSET
, 198,
129 "\"%s\" is not a user of this system\n"),
134 if ((cp
= username()) == NULL
) {
139 myname
= smalloc(strlen(cp
) + 1);
143 if ((cp
= getenv("HOME")) == NULL
)
145 homedir
= smalloc(strlen(cp
) + 1);
147 if (debug
|| value("debug"))
148 printf(catgets(catd
, CATSET
, 199,
149 "user = %s, homedir = %s\n"), myname
, homedir
);