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28f540f4 RM |
1 | /* Copyright (C) 1991, 1993 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | Cambridge, MA 02139, USA. */ | |
18 | ||
19 | #include <ansidecl.h> | |
20 | #include <stdio.h> | |
21 | ||
22 | ||
23 | /* This returns a new stream opened on a temporary file (generated | |
24 | by tmpnam) The file is opened with mode "w+b" (binary read/write). | |
25 | If we couldn't generate a unique filename or the file couldn't | |
26 | be opened, NULL is returned. */ | |
27 | FILE * | |
28 | DEFUN_VOID(tmpfile) | |
29 | { | |
30 | char *filename; | |
31 | FILE *f; | |
32 | ||
33 | filename = __stdio_gen_tempname ((char *) NULL, "tmpf", 0, | |
34 | (size_t *) NULL, &f); | |
35 | if (filename == NULL) | |
36 | return NULL; | |
37 | ||
38 | /* Note that this relies on the Unix semantics that | |
39 | a file is not really removed until it is closed. */ | |
40 | (void) remove (filename); | |
41 | ||
42 | return f; | |
43 | } |