-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-char * tmpnam( char * s ) { /* TODO */ };
+/* $Id$ */
+
+/* tmpnam( char * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
+
+#ifndef REGTEST
+
+#include <string.h>
+#include <_PDCLIB_glue.h>
+
+char * tmpnam( char * s )
+{
+ static char filename[ L_tmpnam ];
+ FILE * file = tmpfile();
+ if ( s == NULL )
+ {
+ s = filename;
+ }
+ strcpy( s, file->filename );
+ fclose( file );
+ return s;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+#include <string.h>
+
+int main( void )
+{
+ TESTCASE( strlen( tmpnam( NULL ) ) < L_tmpnam );
+ return TEST_RESULTS;
+}
+
+#endif
+