+/* Copyright (C) 1993,97,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* Windows lacks htonl, htons, ntohl, ntohs. It defines them in
+ * header files, but doesn't have them in any library. However
+ * because it defined them we can end up with conflicting
+ * definitions, which is why here we are careful to avoid
+ * including any Windows header file.
+ */
+
+#include <config.h>
+
+#include <stdint.h>
+#include <sys/param.h>
+#include <byteswap.h>
+
+#ifndef HAVE_NTOHL
+
+#undef htonl
+#undef ntohl
+
+uint32_t
+htonl (x)
+ uint32_t x;
+{
+#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
+#if BYTE_ORDER == BIG_ENDIAN
+ return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+ return bswap_32 (x);
+#else
+# error "What kind of system is this?"
+#endif
+#else
+#error "BYTE_ORDER/BIG_ENDIAN/LITTLE_ENDIAN are not defined"
+#endif
+}
+
+uint32_t ntohl (uint32_t x) { return htonl (x); }
+
+#endif /* !HAVE_NTOHL */
+
+#ifndef HAVE_NTOHS
+
+#undef htons
+#undef ntohs
+
+uint16_t
+htons (x)
+ uint16_t x;
+{
+#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
+#if BYTE_ORDER == BIG_ENDIAN
+ return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+ return bswap_16 (x);
+#else
+# error "What kind of system is this?"
+#endif
+#else
+#error "BYTE_ORDER/BIG_ENDIAN/LITTLE_ENDIAN are not defined"
+#endif
+}
+
+uint16_t ntohs (uint16_t x) { return htons (x); }
+
+#endif /* !HAVE_NTOHS */