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/* Utility to pick a temporary filename prefix.
Copyright (C) 1996, 1997, 1998 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h> /* May get P_tmpdir. */
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "libiberty.h"
extern char *choose_tmpdir PARAMS ((void));
/* Name of temporary file.
mktemp requires 6 trailing X's. */
#define TEMP_FILE "ccXXXXXX"
#define TEMP_FILE_LEN (sizeof(TEMP_FILE) - 1)
/* Return a prefix for temporary file names or 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 (mktemp fails).
The buffer for the result is obtained with xmalloc.
This function is provided for backwards compatability only. It use
is not recommended. */
char *
choose_temp_base ()
{
const char *base = choose_tmpdir ();
char *temp_filename;
int len;
len = strlen (base);
temp_filename = xmalloc (len + TEMP_FILE_LEN + 1);
strcpy (temp_filename, base);
strcpy (temp_filename + len, TEMP_FILE);
mktemp (temp_filename);
if (strlen (temp_filename) == 0)
abort ();
return temp_filename;
}
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