]>
Commit | Line | Data |
---|---|---|
1 | /* Utility to pick a temporary filename prefix. | |
2 | Copyright (C) 1996-2024 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of the libiberty library. | |
5 | Libiberty is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2 of the License, or (at your option) any later version. | |
9 | ||
10 | Libiberty is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with libiberty; see the file COPYING.LIB. If not, | |
17 | write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
18 | Boston, MA 02110-1301, USA. */ | |
19 | ||
20 | #ifdef HAVE_CONFIG_H | |
21 | #include "config.h" | |
22 | #endif | |
23 | ||
24 | #include <stdio.h> /* May get P_tmpdir. */ | |
25 | #include <sys/types.h> | |
26 | #ifdef HAVE_UNISTD_H | |
27 | #include <unistd.h> | |
28 | #endif | |
29 | #ifdef HAVE_STDLIB_H | |
30 | #include <stdlib.h> | |
31 | #endif | |
32 | #ifdef HAVE_STRING_H | |
33 | #include <string.h> | |
34 | #endif | |
35 | ||
36 | #include "libiberty.h" | |
37 | ||
38 | /* Name of temporary file. | |
39 | mktemp requires 6 trailing X's. */ | |
40 | #define TEMP_FILE "ccXXXXXX" | |
41 | #define TEMP_FILE_LEN (sizeof(TEMP_FILE) - 1) | |
42 | ||
43 | /* | |
44 | ||
45 | @deftypefn Extension char* choose_temp_base (void) | |
46 | ||
47 | Return a prefix for temporary file names or @code{NULL} if unable to | |
48 | find one. The current directory is chosen if all else fails so the | |
49 | program is exited if a temporary directory can't be found (@code{mktemp} | |
50 | fails). The buffer for the result is obtained with @code{xmalloc}. | |
51 | ||
52 | This function is provided for backwards compatibility only. Its use is | |
53 | not recommended. | |
54 | ||
55 | @end deftypefn | |
56 | ||
57 | */ | |
58 | ||
59 | char * | |
60 | choose_temp_base (void) | |
61 | { | |
62 | const char *base = choose_tmpdir (); | |
63 | char *temp_filename; | |
64 | int len; | |
65 | ||
66 | len = strlen (base); | |
67 | temp_filename = XNEWVEC (char, len + TEMP_FILE_LEN + 1); | |
68 | strcpy (temp_filename, base); | |
69 | strcpy (temp_filename + len, TEMP_FILE); | |
70 | ||
71 | if (mktemp (temp_filename) == 0) | |
72 | abort (); | |
73 | return temp_filename; | |
74 | } |