1 files changed, 53 insertions, 0 deletions
diff --git a/util/byteorder.c b/util/byteorder.c
new file mode 100644
index 00000000..0629b31e
--- /dev/null
+++ b/util/byteorder.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2022 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Mach.
+ *
+ * GNU Mach 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, 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "util/byteorder.h"
+
+uint16_t ntohs(uint16_t netshort) {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	return __builtin_bswap16(netshort);
+#else
+	return netshort;
+#endif
+}
+
+uint32_t ntohl(uint32_t netlong) {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	return __builtin_bswap32(netlong);
+#else
+	return netlong;
+#endif
+}
+
+uint16_t htons(uint16_t hostshort) {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	return __builtin_bswap16(hostshort);
+#else
+	return hostshort;
+#endif
+}
+
+uint32_t htonl(uint32_t hostlong) {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	return __builtin_bswap32(hostlong);
+#else
+	return hostlong;
+#endif
+}