1 files changed, 96 insertions, 0 deletions
diff --git a/src/libs/network/bytesex.h b/src/libs/network/bytesex.h
new file mode 100644
index 0000000..4ee89d7
--- /dev/null
+++ b/src/libs/network/bytesex.h
@@ -0,0 +1,96 @@
+/*
+ *  Copyright 2006  Serge van den Boom <svdb@stack.nl>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+// Routines for changing the endianness of values.
+// I'm not using ntohs() etc. as those would require include files that may
+// have conflicting definitions. This is a problem on Windows, where these
+// functions are in winsock2.h, which includes windows.h, which includes
+// pretty much Microsoft's complete collection of .h files.
+
+#ifndef LIBS_NETWORK_BYTESEX_H_
+#define LIBS_NETWORK_BYTESEX_H_
+
+#include "port.h"
+		// for inline
+#include "endian_uqm.h"
+		// for WORDS_BIGENDIAN
+#include "types.h"
+
+static inline uint16
+swapBytes16(uint16 x) {
+	return (x << 8) | (x >> 8);
+}
+
+static inline uint32
+swapBytes32(uint32 x) {
+	return (x << 24)
+			| ((x & 0x0000ff00) << 8)
+			| ((x & 0x00ff0000) >> 8)
+			| (x >> 24);
+}
+
+#ifdef WORDS_BIGENDIAN
+// Already in network order.
+
+static inline uint16
+hton16(uint16 x) {
+	return x;
+}
+
+static inline uint32
+hton32(uint32 x) {
+	return x;
+}
+
+static inline uint16
+ntoh16(uint16 x) {
+	return x;
+}
+
+static inline uint32
+ntoh32(uint32 x) {
+	return x;
+}
+
+#else  /* !defined(WORDS_BIGENDIAN) */
+// Need to swap bytes
+
+static inline uint16
+hton16(uint16 x) {
+	return swapBytes16(x);
+}
+
+static inline uint32
+hton32(uint32 x) {
+	return swapBytes32(x);
+}
+
+static inline uint16
+ntoh16(uint16 x) {
+	return swapBytes16(x);
+}
+
+static inline uint32
+ntoh32(uint32 x) {
+	return swapBytes32(x);
+}
+
+#endif  /* defined(WORDS_BIGENDIAN) */
+
+#endif  /* LIBS_NETWORK_BYTESEX_H_ */
+