NetBSD/external/gpl3/gcc/dist/libiberty/choose-temp.c
mrg 4d5abbe83f import GCC 5.3.0. see these urls for details which are too large to
include here:

	http://gcc.gnu.org/gcc-4.9/changes.html
	http://gcc.gnu.org/gcc-5/changes.html

(note that GCC 5.x is a release stream like GCC 4.9.x, 4.8.x, etc.)


the main issues we will have are:

The default mode for C is now -std=gnu11 instead of -std=gnu89.

ARM:
The deprecated option -mwords-little-endian has been removed.
The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame
 which are only applicable to the old ABI have been deprecated.

MIPS:
The o32 ABI has been modified and extended. The o32 64-bit
 floating-point register support is now obsolete and has been removed.
 It has been replaced by three ABI extensions FPXX, FP64A, and FP64.
 The meaning of the -mfp64 command-line option has changed. It is now
 used to enable the FP64A and FP64 ABI extensions.
2016-01-24 06:05:37 +00:00

75 lines
2.0 KiB
C

/* 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., 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;
}