+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#include <features.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/stat.h>
+ 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.
-char * mktemp(template)
-char * template;
+ 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,
+ see <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "../misc/internals/tempname.h"
+
+/* Generate a unique temporary file name from TEMPLATE.
+ * The last six characters of TEMPLATE must be "XXXXXX";
+ * they are replaced with a string that makes the filename unique. */
+char *mktemp(char *template)
{
- int i;
- int num; /* UNINITIALIZED */
- int n2;
- int l = strlen(template);
- struct stat stbuf;
-
- if (l<6) {
- errno = EINVAL;
- return 0;
- }
-
- for(i=l-6;i<l;i++)
- if (template[i] != 'X') {
- errno = EINVAL;
- return 0;
- }
-
-again:
- n2 = num;
- for(i=l-1;i>=l-6;i--) {
- template[i] = '0' + n2 % 10;
- n2 /= 10;
- }
-
- if (stat(template, &stbuf) == 0) {
- num++;
- goto again;
- }
-
+ if (__gen_tempname (template, __GT_NOCREATE, 0, 0) < 0)
+ /* We return the null string if we can't find a unique file name. */
+ template[0] = '\0';
+
return template;
}
+
+link_warning(mktemp, "the use of `mktemp' is dangerous, better use `mkstemp'")