X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Frewind.c;h=53ab51da9509b64a2fcb1567fb05a8b45de5eb45;hb=0a419d48138f1411d6e3e50a367b9ece5a2cf893;hp=0dd56ae181a16742b174f4f31871e8825f1a09e8;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec;p=pdclib

diff --git a/functions/stdio/rewind.c b/functions/stdio/rewind.c
index 0dd56ae..53ab51d 100644
--- a/functions/stdio/rewind.c
+++ b/functions/stdio/rewind.c
@@ -1,8 +1,38 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-void rewind( FILE * stream ) { /* TODO */ };
+/* $Id$ */
+
+/* rewind( FILE * )
+
+   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 <_PDCLIB_io.h>
+
+void rewind_unlocked( FILE * stream )
+{
+    stream->status &= ~ _PDCLIB_ERRORFLAG;
+    fseek_unlocked( stream, 0L, SEEK_SET );
+}
+
+void rewind( FILE * stream )
+{
+    flockfile(stream);
+    rewind_unlocked(stream);
+    funlockfile(stream);
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    /* Testing covered by ftell.c */
+    return TEST_RESULTS;
+}
+
+#endif