Add tcpdump and libpcap.

- Update the file builder generator to handle generator specific cflags and
  includes. The tcpdump and libpcap have localised headers and need specific
  headers paths to see them. There are also module specific flags and these
  need to be passed to the lex and yacc generators.

- Add the tcpdump support.

1 files changed, 93 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-ipcomp.c b/freebsd/contrib/tcpdump/print-ipcomp.c
new file mode 100644
index 00000000..04f16b38
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-ipcomp.c
@@ -0,0 +1,93 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
+ *	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.
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-ipcomp.c,v 1.20 2003-11-19 00:36:08 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+
+struct ipcomp {
+	u_int8_t comp_nxt;	/* Next Header */
+	u_int8_t comp_flags;	/* Length of data, in 32bit */
+	u_int16_t comp_cpi;	/* Compression parameter index */
+};
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+#include <zlib.h>
+#endif
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+int
+ipcomp_print(register const u_char *bp, int *nhdr _U_)
+{
+	register const struct ipcomp *ipcomp;
+	register const u_char *ep;
+	u_int16_t cpi;
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+	int advance;
+#endif
+
+	ipcomp = (struct ipcomp *)bp;
+	cpi = EXTRACT_16BITS(&ipcomp->comp_cpi);
+
+	/* 'ep' points to the end of available data. */
+	ep = snapend;
+
+	if ((u_char *)(ipcomp + 1) >= ep - sizeof(struct ipcomp)) {
+		fputs("[|IPCOMP]", stdout);
+		goto fail;
+	}
+	printf("IPComp(cpi=0x%04x)", cpi);
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+	if (1)
+		goto fail;
+
+	/*
+	 * We may want to decompress the packet here.  Packet buffer
+	 * management is a headache (if we decompress, packet will become
+	 * larger).
+	 */
+	if (nhdr)
+		*nhdr = ipcomp->comp_nxt;
+	advance = sizeof(struct ipcomp);
+
+	printf(": ");
+	return advance;
+
+#endif
+fail:
+	return -1;
+}