+++ /dev/null
-/* 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. */
-
-/* This file exports two functions: choose_temp_base and make_temp_file. */
-
-/* This file lives in at least two places: libiberty and gcc.
- Don't change one without the other. */
-
-#if defined (IN_GCC) || defined (HAVE_CONFIG_H)
-#include "config.h"
-#endif
-
-#ifdef IN_GCC
-#include "system.h"
-#else
-
-/* If we are in gcc, system.h has handled everything. When not in
- gcc, if we have a config.h we assume that HAVE_SYS_FILE_H tells us
- whether to include sys/file.h. However, libiberty does not have a
- config.h, and instead arranges to define NO_SYS_FILE_H on the
- command line when there is no sys/file.h. */
-
-#if defined (HAVE_CONFIG_H) ? defined (HAVE_SYS_FILE_H) : ! defined (NO_SYS_FILE_H)
-#include <sys/types.h>
-#include <sys/file.h> /* May get R_OK, etc. on some systems. */
-#endif
-
-#ifndef R_OK
-#define R_OK 4
-#define W_OK 2
-#define X_OK 1
-#endif
-
-#include <stdio.h> /* May get P_tmpdir. */
-#endif /* IN_GCC */
-
-#ifdef IN_GCC
-#include "gansidecl.h"
-extern char *xmalloc ();
-#else
-#include "ansidecl.h"
-#include "libiberty.h"
-#if defined (__MSDOS__) || defined (_WIN32)
-#define DIR_SEPARATOR '\\'
-#endif
-#endif
-
-#ifndef DIR_SEPARATOR
-#define DIR_SEPARATOR '/'
-#endif
-
-/* On MSDOS, write temp files in current dir
- because there's no place else we can expect to use. */
-/* ??? Although the current directory is tried as a last resort,
- this is left in so that on MSDOS it is preferred to /tmp on the
- off chance that someone requires this, since that was the previous
- behaviour. */
-#ifdef __MSDOS__
-#ifndef P_tmpdir
-#define P_tmpdir "."
-#endif
-#endif
-
-/* Name of temporary file.
- mktemp requires 6 trailing X's. */
-#define TEMP_FILE "ccXXXXXX"
-
-/* Subroutine of choose_temp_base.
- If BASE is non-NULL, return it.
- Otherwise it checks if DIR is a usable directory.
- If success, DIR is returned.
- Otherwise NULL is returned. */
-
-static char *
-try (dir, base)
- char *dir, *base;
-{
- if (base != 0)
- return base;
- if (dir != 0
- && access (dir, R_OK | W_OK | X_OK) == 0)
- return dir;
- return 0;
-}
-
-/* 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 ()
-{
- char *base = 0;
- char *temp_filename;
- int len;
- static char tmp[] = { DIR_SEPARATOR, 't', 'm', 'p', 0 };
- static char usrtmp[] = { DIR_SEPARATOR, 'u', 's', 'r', DIR_SEPARATOR, 't', 'm', 'p', 0 };
-
- base = try (getenv ("TMPDIR"), base);
- base = try (getenv ("TMP"), base);
- base = try (getenv ("TEMP"), base);
-
-#ifdef P_tmpdir
- base = try (P_tmpdir, base);
-#endif
-
- /* Try /usr/tmp, then /tmp. */
- base = try (usrtmp, base);
- base = try (tmp, base);
-
- /* If all else fails, use the current directory! */
- if (base == 0)
- base = ".";
-
- len = strlen (base);
- temp_filename = xmalloc (len + 1 /*DIR_SEPARATOR*/
- + strlen (TEMP_FILE) + 1);
- strcpy (temp_filename, base);
-
- if (len != 0
- && temp_filename[len-1] != '/'
- && temp_filename[len-1] != DIR_SEPARATOR)
- temp_filename[len++] = DIR_SEPARATOR;
- strcpy (temp_filename + len, TEMP_FILE);
-
- mktemp (temp_filename);
- if (strlen (temp_filename) == 0)
- abort ();
- return temp_filename;
-}
-/* Return a temporary file name (as a string) or NULL if unable to create
- one. */
-
-char *
-make_temp_file (suffix)
- char *suffix;
-{
- char *base = 0;
- char *temp_filename;
- int base_len, suffix_len;
- int fd;
- static char tmp[] = { DIR_SEPARATOR, 't', 'm', 'p', 0 };
- static char usrtmp[] = { DIR_SEPARATOR, 'u', 's', 'r', DIR_SEPARATOR, 't', 'm', 'p', 0 };
-
- base = try (getenv ("TMPDIR"), base);
- base = try (getenv ("TMP"), base);
- base = try (getenv ("TEMP"), base);
-
-#ifdef P_tmpdir
- base = try (P_tmpdir, base);
-#endif
-
- /* Try /usr/tmp, then /tmp. */
- base = try (usrtmp, base);
- base = try (tmp, base);
-
- /* If all else fails, use the current directory! */
- if (base == 0)
- base = ".";
-
- base_len = strlen (base);
-
- if (suffix)
- suffix_len = strlen (suffix);
- else
- suffix_len = 0;
-
- temp_filename = xmalloc (base_len + 1 /*DIR_SEPARATOR*/
- + strlen (TEMP_FILE)
- + suffix_len + 1);
- strcpy (temp_filename, base);
-
- if (base_len != 0
- && temp_filename[base_len-1] != '/'
- && temp_filename[base_len-1] != DIR_SEPARATOR)
- temp_filename[base_len++] = DIR_SEPARATOR;
- strcpy (temp_filename + base_len, TEMP_FILE);
-
- if (suffix)
- strcat (temp_filename, suffix);
-
- fd = mkstemps (temp_filename, suffix_len);
- /* If mkstemps failed, then something bad is happening. Maybe we should
- issue a message about a possible security attack in progress? */
- if (fd == -1)
- abort ();
- /* Similarly if we can not close the file. */
- if (close (fd))
- abort ();
- return temp_filename;
-}
+++ /dev/null
-/* Copyright (C) 1991, 1992, 1996, 1998 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef IN_GCC
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/time.h>
-#else
-#include "config.h"
-#include "system.h"
-#include "gansidecl.h"
-
-/* We need to provide a type for gcc_uint64_t. */
-#ifdef __GNUC__
-typedef unsigned long long gcc_uint64_t;
-#else
-typedef unsigned long gcc_uint64_t;
-#endif
-
-#ifndef TMP_MAX
-#define TMP_MAX 16384
-#endif
-#endif
-
-/* Generate a unique temporary file name from TEMPLATE.
-
- TEMPLATE has the form:
-
- <path>/ccXXXXXX<suffix>
-
- SUFFIX_LEN tells us how long <suffix> is (it can be zero length).
-
- The last six characters of TEMPLATE before <suffix> must be "XXXXXX";
- they are replaced with a string that makes the filename unique.
-
- Returns a file descriptor open on the file for reading and writing. */
-int
-mkstemps (template, suffix_len)
- char *template;
- 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 (template);
-
- if (len < 6 + suffix_len
- || strncmp (&template[len - 6 - suffix_len], "XXXXXX", 6))
- {
- return -1;
- }
-
- XXXXXX = &template[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 (template, 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. */
- template[0] = '\0';
- return -1;
-}
projects / thirdparty / gcc.git / commitdiff
