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diff --git a/sysdeps/generic/netinet/in_systm.h b/sysdeps/generic/netinet/in_systm.h
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+/* System specific type definitions for networking code.
+   Copyright (C) 1997 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _NETINET_IN_SYSTM_H
+#define _NETINET_IN_SYSTM_H 1
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+/*
+ * Network order versions of various data types. Unfortunately, BSD
+ * assumes specific sizes for shorts (16 bit) and longs (32 bit) which
+ * don't hold in general. As a consequence, the network order versions
+ * may not reflect the actual size of the native data types.
+ */
+
+typedef u_int16_t n_short;      /* short as received from the net */
+typedef u_int32_t n_long;       /* long as received from the net  */
+typedef u_int32_t n_time;       /* ms since 00:00 GMT, byte rev   */
+
+__END_DECLS
+
+#endif /* netinet/in_systm.h */