- add netmap-libpcap

- add netmap (FreeBSD header files need to be updated with this)
- move prototype perl scripts to prototype/ folder
- create basic structure for sipcap app (no code yet)

netmap-libpcap/pcap_set_buffer_size.3pcap

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+.\" Copyright (c) 1994, 1996, 1997
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that: (1) source code distributions
+.\" retain the above copyright notice and this paragraph in its entirety, (2)
+.\" distributions including binary code include the above copyright notice and
+.\" this paragraph in its entirety in the documentation or other materials
+.\" provided with the distribution, and (3) all advertising materials mentioning
+.\" features or use of this software display the following acknowledgement:
+.\" ``This product includes software developed by the University of California,
+.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+.\" the University nor the names of its contributors may be used to endorse
+.\" or promote products derived from this software without specific prior
+.\" written permission.
+.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\"
+.TH PCAP_SET_BUFFER_SIZE 3PCAP "5 April 2008"
+.SH NAME
+pcap_set_buffer_size \- set the buffer size for a not-yet-activated
+capture handle
+.SH SYNOPSIS
+.nf
+.ft B
+#include <pcap/pcap.h>
+.LP
+.ft B
+int pcap_set_buffer_size(pcap_t *p, int buffer_size);
+.ft
+.fi
+.SH DESCRIPTION
+.B pcap_set_buffer_size()
+sets the buffer size that will be used on a capture handle when
+the handle is activated to
+.IR buffer_size ,
+which is in units of bytes.
+.SH RETURN VALUE
+.B pcap_set_buffer_size()
+returns 0 on success or
+.B PCAP_ERROR_ACTIVATED
+if called on a capture handle that has been activated.
+.SH SEE ALSO
+pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP)