+2001-03-21 Zack Weinberg <zackw@stanford.edu>
+
+ * make-temp-file.c: Always default DIR_SEPARATOR to '/'.
+ Don't default P_tmpdir to anything. Try /var/tmp before
+ /usr/tmp.
+
+2001-03-20 Zack Weinberg <zackw@stanford.edu>
+
+ * choose-temp.c: Split off make_temp_file, and the code
+ duplicated between it and choose_temp_base, into...
+ * make-temp-file.c: ... here; new file.
+
+ * Makefile.in (CFILES): Add make-temp-file.c.
+ (REQUIRED_OFILES): Add make-temp-file.o.
+
2001-03-20 Jim Blandy <jimb@redhat.com>
* cp-demangle.c (struct demangling_def): New fields:
cp-demangle.c dyn-string.c fdmatch.c fnmatch.c getcwd.c \
getpwd.c getopt.c getopt1.c getpagesize.c getruntime.c \
floatformat.c hashtab.c hex.c index.c insque.c lbasename.c \
- md5.c memchr.c \
+ md5.c make-temp-file.c memchr.c \
memcmp.c memcpy.c memmove.c memset.c mkstemps.c objalloc.c obstack.c \
partition.c pexecute.c putenv.c random.c rename.c rindex.c setenv.c \
sigsetmask.c safe-ctype.c sort.c spaces.c splay-tree.c strcasecmp.c \
REQUIRED_OFILES = argv.o alloca.o choose-temp.o concat.o cplus-dem.o \
cp-demangle.o dyn-string.o fdmatch.o fnmatch.o getopt.o getopt1.o \
getpwd.o getruntime.o hashtab.o hex.o floatformat.o lbasename.o \
- md5.o objalloc.o \
+ md5.o make-temp-file.o objalloc.o \
obstack.o partition.o pexecute.o safe-ctype.o sort.o spaces.o \
splay-tree.o strerror.o strsignal.o xatexit.o xexit.o xmalloc.o \
xmemdup.o xstrdup.o xstrerror.o
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. */
-
#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
-#ifdef HAVE_SYS_FILE_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 "libiberty.h"
-extern int mkstemps ();
-
-#ifndef IN_GCC
-#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN__) && ! defined (_UWIN))
-#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
+extern char *choose_tmpdir PARAMS ((void));
/* 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 const char *try PARAMS ((const char *, const char *));
-
-static const char *
-try (dir, base)
- const char *dir, *base;
-{
- if (base != 0)
- return base;
- if (dir != 0
- && access (dir, R_OK | W_OK | X_OK) == 0)
- return dir;
- return 0;
-}
+#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
char *
choose_temp_base ()
{
- const char *base = 0;
+ const char *base = choose_tmpdir ();
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);
+ temp_filename = xmalloc (len + TEMP_FILE_LEN + 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);
abort ();
return temp_filename;
}
-/* Return a temporary file name (as a string) or NULL if unable to create
- one. */
-
-char *
-make_temp_file (suffix)
- const char *suffix;
-{
- const 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
+/* Utility to pick a temporary filename prefix.
+ Copyright (C) 1996, 1997, 1998, 2001 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. */
+#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
+#ifdef HAVE_SYS_FILE_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 "libiberty.h"
+extern int mkstemps PARAMS ((char *, int));
+
+/* '/' works just fine on MS-DOS based systems. */
+#ifndef DIR_SEPARATOR
+#define DIR_SEPARATOR '/'
+#endif
+
+/* Name of temporary file.
+ mktemp requires 6 trailing X's. */
+#define TEMP_FILE "ccXXXXXX"
+#define TEMP_FILE_LEN (sizeof(TEMP_FILE) - 1)
+
+/* Subroutine of choose_tmpdir.
+ 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 const char *try PARAMS ((const char *, const char *));
+
+static const char *
+try (dir, base)
+ const char *dir, *base;
+{
+ if (base != 0)
+ return base;
+ if (dir != 0
+ && access (dir, R_OK | W_OK | X_OK) == 0)
+ return dir;
+ return 0;
+}
+
+static const char tmp[] = { DIR_SEPARATOR, 't', 'm', 'p', 0 };
+static const char usrtmp[] =
+{ DIR_SEPARATOR, 'u', 's', 'r', DIR_SEPARATOR, 't', 'm', 'p', 0 };
+static const char vartmp[] =
+{ DIR_SEPARATOR, 'v', 'a', 'r', DIR_SEPARATOR, 't', 'm', 'p', 0 };
+
+static char *memoized_tmpdir;
+
+char *
+choose_tmpdir ()
+{
+ const char *base = 0;
+ char *tmpdir;
+ unsigned int len;
+
+ if (memoized_tmpdir)
+ return memoized_tmpdir;
+
+ 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 /var/tmp, /usr/tmp, then /tmp. */
+ base = try (vartmp, base);
+ base = try (usrtmp, base);
+ base = try (tmp, base);
+
+ /* If all else fails, use the current directory! */
+ if (base == 0)
+ base = ".";
+
+ /* Append DIR_SEPARATOR to the directory we've chosen
+ and return it. */
+ len = strlen (base);
+ tmpdir = xmalloc (len + 2);
+ strcpy (tmpdir, base);
+ tmpdir[len] = DIR_SEPARATOR;
+ tmpdir[len+1] = '\0';
+
+ memoized_tmpdir = tmpdir;
+ return tmpdir;
+}
+
+/* Return a temporary file name (as a string) or NULL if unable to create
+ one. SUFFIX is a suffix to append to the file name. The string is
+ malloced, and the temporary file has been created. */
+
+char *
+make_temp_file (suffix)
+ const char *suffix;
+{
+ const char *base = choose_tmpdir ();
+ char *temp_filename;
+ int base_len, suffix_len;
+ int fd;
+
+ if (suffix == 0)
+ suffix = "";
+
+ base_len = strlen (base);
+ suffix_len = strlen (suffix);
+
+ temp_filename = xmalloc (base_len
+ + TEMP_FILE_LEN
+ + suffix_len + 1);
+ strcpy (temp_filename, base);
+ strcpy (temp_filename + base_len, TEMP_FILE);
+ strcpy (temp_filename + base_len + TEMP_FILE_LEN, 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;
+}
projects / deliverable / binutils-gdb.git / commitdiff
