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, 155 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-tftp.c b/freebsd/contrib/tcpdump/print-tftp.c
new file mode 100644
index 00000000..2a2f70b4
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-tftp.c
@@ -0,0 +1,155 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1990, 1991, 1993, 1994, 1995, 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.
+ *
+ * Format and print trivial file transfer protocol packets.
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-tftp.c,v 1.39 2008-04-11 16:47:38 gianluca Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#ifdef SEGSIZE
+#undef SEGSIZE					/* SINIX sucks */
+#endif
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "tftp.h"
+
+/* op code to string mapping */
+static struct tok op2str[] = {
+	{ RRQ,		"RRQ" },	/* read request */
+	{ WRQ,		"WRQ" },	/* write request */
+	{ DATA,		"DATA" },	/* data packet */
+	{ ACK,		"ACK" },	/* acknowledgement */
+	{ TFTP_ERROR,	"ERROR" },	/* error code */
+	{ OACK,		"OACK" },	/* option acknowledgement */
+	{ 0,		NULL }
+};
+
+/* error code to string mapping */
+static struct tok err2str[] = {
+	{ EUNDEF,	"EUNDEF" },	/* not defined */
+	{ ENOTFOUND,	"ENOTFOUND" },	/* file not found */
+	{ EACCESS,	"EACCESS" },	/* access violation */
+	{ ENOSPACE,	"ENOSPACE" },	/* disk full or allocation exceeded */
+	{ EBADOP,	"EBADOP" },	/* illegal TFTP operation */
+	{ EBADID,	"EBADID" },	/* unknown transfer ID */
+	{ EEXISTS,	"EEXISTS" },	/* file already exists */
+	{ ENOUSER,	"ENOUSER" },	/* no such user */
+	{ 0,		NULL }
+};
+
+/*
+ * Print trivial file transfer program requests
+ */
+void
+tftp_print(register const u_char *bp, u_int length)
+{
+	register const struct tftphdr *tp;
+	register const char *cp;
+	register const u_char *p;
+	register int opcode, i;
+	static char tstr[] = " [|tftp]";
+
+	tp = (const struct tftphdr *)bp;
+
+	/* Print length */
+	printf(" %d", length);
+
+	/* Print tftp request type */
+	TCHECK(tp->th_opcode);
+	opcode = EXTRACT_16BITS(&tp->th_opcode);
+	cp = tok2str(op2str, "tftp-#%d", opcode);
+	printf(" %s", cp);
+	/* Bail if bogus opcode */
+	if (*cp == 't')
+		return;
+
+	switch (opcode) {
+
+	case RRQ:
+	case WRQ:
+	case OACK:
+		p = (u_char *)tp->th_stuff;
+		putchar(' ');
+		/* Print filename or first option */
+		if (opcode != OACK)
+			putchar('"');
+		i = fn_print(p, snapend);
+		if (opcode != OACK)
+			putchar('"');
+
+		/* Print the mode (RRQ and WRQ only) and any options */
+		while ((p = (const u_char *)strchr((const char *)p, '\0')) != NULL) {
+			if (length <= (u_int)(p - (const u_char *)&tp->th_block))
+				break;
+			p++;
+			if (*p != '\0') {
+				putchar(' ');
+				fn_print(p, snapend);
+			}
+		}
+		
+		if (i)
+			goto trunc;
+		break;
+
+	case ACK:
+	case DATA:
+		TCHECK(tp->th_block);
+		printf(" block %d", EXTRACT_16BITS(&tp->th_block));
+		break;
+
+	case TFTP_ERROR:
+		/* Print error code string */
+		TCHECK(tp->th_code);
+		printf(" %s \"", tok2str(err2str, "tftp-err-#%d \"",
+				       EXTRACT_16BITS(&tp->th_code)));
+		/* Print error message string */
+		i = fn_print((const u_char *)tp->th_data, snapend);
+		putchar('"');
+		if (i)
+			goto trunc;
+		break;
+
+	default:
+		/* We shouldn't get here */
+		printf("(unknown #%d)", opcode);
+		break;
+	}
+	return;
+trunc:
+	fputs(tstr, stdout);
+	return;
+}