75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* Utility to pick a temporary filename prefix.
|
|
Copyright (C) 1996-2017 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;
|
|
}
|