| /* Utility to pick a temporary filename prefix. |
| Copyright (C) 1996-2019 Free Software Foundation, Inc. |
| |
| This file is part of the libiberty library. |
| Libiberty is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| Libiberty is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with libiberty; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <stdio.h> /* May get P_tmpdir. */ |
| #include <sys/types.h> |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #ifdef HAVE_STDLIB_H |
| #include <stdlib.h> |
| #endif |
| #ifdef HAVE_STRING_H |
| #include <string.h> |
| #endif |
| |
| #include "libiberty.h" |
| |
| /* Name of temporary file. |
| mktemp requires 6 trailing X's. */ |
| #define TEMP_FILE "ccXXXXXX" |
| #define TEMP_FILE_LEN (sizeof(TEMP_FILE) - 1) |
| |
| /* |
| |
| @deftypefn Extension char* choose_temp_base (void) |
| |
| Return a prefix for temporary file names or @code{NULL} if unable to |
| find one. The current directory is chosen if all else fails so the |
| program is exited if a temporary directory can't be found (@code{mktemp} |
| fails). The buffer for the result is obtained with @code{xmalloc}. |
| |
| This function is provided for backwards compatibility only. Its use is |
| not recommended. |
| |
| @end deftypefn |
| |
| */ |
| |
| char * |
| choose_temp_base (void) |
| { |
| const char *base = choose_tmpdir (); |
| char *temp_filename; |
| int len; |
| |
| len = strlen (base); |
| temp_filename = XNEWVEC (char, len + TEMP_FILE_LEN + 1); |
| strcpy (temp_filename, base); |
| strcpy (temp_filename + len, TEMP_FILE); |
| |
| if (mktemp (temp_filename) == 0) |
| abort (); |
| return temp_filename; |
| } |