bswap{16,32}

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9911 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/roken/bswap.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2001 Kungliga Tekniska H<>gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "roken.h"
+
+RCSID("$Id$");
+
+#ifndef HAVE_BSWAP32
+
+u_int32_t
+bswap32 (u_int32_t val)
+{
+    return (val & 0xff) << 24 |
+	(val & 0xff00) << 8 |
+	(val & 0xff0000) >> 8 |
+	(val & 0xff000000) >> 24;
+}
+#endif
+
+#ifndef HAVE_BSWAP16
+
+u_int16_t
+bswap16 (u_int16_t val)
+{
+    return (val & 0xff) << 8 |
+	(val & 0xff00) >> 8;
+}
+#endif

lib/roken/roken.h.in

@@ -352,6 +352,14 @@ mkstemp(char *template);
 void pidfile (const char*);
 #endif
 
+#ifndef HAVE_BSWAP32
+u_int32_t bswap32(u_int32_t);
+#endif
+
+#ifndef HAVE_BSWAP16
+u_int16_t bswap16(u_int16_t);
+#endif
+
 #ifndef HAVE_FLOCK
 #ifndef LOCK_SH
 #define LOCK_SH   1		/* Shared lock */