diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/libiberty/mkstemps.c')
-rw-r--r-- | gcc-4.2.1-5666.3/libiberty/mkstemps.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/gcc-4.2.1-5666.3/libiberty/mkstemps.c b/gcc-4.2.1-5666.3/libiberty/mkstemps.c deleted file mode 100644 index 6c2e47252..000000000 --- a/gcc-4.2.1-5666.3/libiberty/mkstemps.c +++ /dev/null @@ -1,140 +0,0 @@ -/* Copyright (C) 1991, 1992, 1996, 1998, 2004 Free Software Foundation, Inc. - This file is derived from mkstemp.c from the GNU C Library. - - The GNU C Library 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. - - The GNU C Library 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 the GNU C Library; 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 <sys/types.h> -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif -#include <errno.h> -#include <stdio.h> -#include <fcntl.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif -#include "ansidecl.h" - -/* We need to provide a type for gcc_uint64_t. */ -#ifdef __GNUC__ -__extension__ typedef unsigned long long gcc_uint64_t; -#else -typedef unsigned long gcc_uint64_t; -#endif - -#ifndef TMP_MAX -#define TMP_MAX 16384 -#endif - -#ifndef O_BINARY -# define O_BINARY 0 -#endif - -/* - -@deftypefn Replacement int mkstemps (char *@var{pattern}, int @var{suffix_len}) - -Generate a unique temporary file name from @var{pattern}. -@var{pattern} has the form: - -@example - @var{path}/ccXXXXXX@var{suffix} -@end example - -@var{suffix_len} tells us how long @var{suffix} is (it can be zero -length). The last six characters of @var{pattern} before @var{suffix} -must be @samp{XXXXXX}; they are replaced with a string that makes the -filename unique. Returns a file descriptor open on the file for -reading and writing. - -@end deftypefn - -*/ - -int -mkstemps (char *pattern, int suffix_len) -{ - static const char letters[] - = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; - static gcc_uint64_t value; -#ifdef HAVE_GETTIMEOFDAY - struct timeval tv; -#endif - char *XXXXXX; - size_t len; - int count; - - len = strlen (pattern); - - if ((int) len < 6 + suffix_len - || strncmp (&pattern[len - 6 - suffix_len], "XXXXXX", 6)) - { - return -1; - } - - XXXXXX = &pattern[len - 6 - suffix_len]; - -#ifdef HAVE_GETTIMEOFDAY - /* Get some more or less random data. */ - gettimeofday (&tv, NULL); - value += ((gcc_uint64_t) tv.tv_usec << 16) ^ tv.tv_sec ^ getpid (); -#else - value += getpid (); -#endif - - for (count = 0; count < TMP_MAX; ++count) - { - gcc_uint64_t v = value; - int fd; - - /* Fill in the random bits. */ - XXXXXX[0] = letters[v % 62]; - v /= 62; - XXXXXX[1] = letters[v % 62]; - v /= 62; - XXXXXX[2] = letters[v % 62]; - v /= 62; - XXXXXX[3] = letters[v % 62]; - v /= 62; - XXXXXX[4] = letters[v % 62]; - v /= 62; - XXXXXX[5] = letters[v % 62]; - - fd = open (pattern, O_BINARY|O_RDWR|O_CREAT|O_EXCL, 0600); - if (fd >= 0) - /* The file does not exist. */ - return fd; - - /* This is a random value. It is only necessary that the next - TMP_MAX values generated by adding 7777 to VALUE are different - with (module 2^32). */ - value += 7777; - } - - /* We return the null string if we can't find a unique file name. */ - pattern[0] = '\0'; - return -1; -} |