aboutsummaryrefslogtreecommitdiff
path: root/stdio-common/tempnam.c
diff options
context:
space:
mode:
Diffstat (limited to 'stdio-common/tempnam.c')
-rw-r--r--stdio-common/tempnam.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/stdio-common/tempnam.c b/stdio-common/tempnam.c
new file mode 100644
index 0000000000..14988a8656
--- /dev/null
+++ b/stdio-common/tempnam.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+This file is part of 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., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/* Generate a unique temporary filename using up to five characters of PFX
+ if it is not NULL. The directory to put this file in is searched for
+ as follows: First the environment variable "TMPDIR" is checked.
+ If it contains the name of a writable directory, that directory is used.
+ If not and if DIR is not NULL, that value is checked. If that fails,
+ P_tmpdir is tried and finally "/tmp". The storage for the filename
+ is allocated by `malloc'. */
+char *
+DEFUN(tempnam, (dir, pfx), CONST char *dir AND CONST char *pfx)
+{
+ size_t len;
+ register char *s;
+ register char *t = __stdio_gen_tempname(dir, pfx, 1, &len, (FILE **) NULL);
+
+ if (t == NULL)
+ return NULL;
+
+ s = (char *) malloc(len);
+ if (s == NULL)
+ return NULL;
+
+ (void) memcpy(s, t, len);
+ return s;
+}