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 (void);
/* 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_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 *));
+@deftypefn Extension char* choose_temp_base (void)
-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;
-}
+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}.
-/* 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. Its use is
+not recommended.
- This function is provided for backwards compatability only. It use
- is not recommended. */
+@end deftypefn
+
+*/
char *
-choose_temp_base ()
+choose_temp_base (void)
{
- 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;
-}