net_if: new module

[gnulib.git] / lib / net_if.in.h

diff --git a/lib/net_if.in.h b/lib/net_if.in.h
new file mode 100644 (file)
index 0000000..24f9f83
--- /dev/null
+++ b/lib/net_if.in.h
@@ -0,0 +1,53 @@
+/* Substitute for <net/if.h>.
+   Copyright (C) 2007-2012 Free Software Foundation, Inc.
+
+   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, 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, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _@GUARD_PREFIX@_NET_IF_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+@PRAGMA_COLUMNS@
+
+#if @HAVE_NET_IF_H@
+
+/* On some platforms, <net/if.h> assumes prior inclusion of
+   <sys/socket.h>.  */
+# include <sys/socket.h>
+
+/* The include_next requires a split double-inclusion guard.  */
+# @INCLUDE_NEXT@ @NEXT_NET_IF_H@
+
+#endif
+
+#ifndef _@GUARD_PREFIX@_NET_IF_H
+#define _@GUARD_PREFIX@_NET_IF_H
+
+#if !@HAVE_NET_IF_H@
+
+/* A platform that lacks <net/if.h>.  */
+
+struct if_nameindex
+{
+  unsigned if_index;
+  char *if_name;
+};
+
+# define IF_NAMESIZE 1 /* Without if_* functions, this supports only "". */
+
+#endif
+
+#endif /* _@GUARD_PREFIX@_NET_IF_H */
+#endif /* _@GUARD_PREFIX@_NET_IF_H */