tcpdump: Update to FreeBSD head 2017-04-04

Update tcpdump from Git mirror commit
99a648a912e81e29d9c4c159cbbe263462f2d719 to
642b174daddbd0efd9bb5f242c43f4ab4db6869f.

freebsd/contrib/tcpdump/print-http.c

@@ -0,0 +1,85 @@
+#include <machine/rtems-bsd-user-space.h>
+#ifdef __rtems__
+#include <machine/rtems-bsd-program.h>
+#include "rtems-bsd-tcpdump-namespace.h"
+#endif /* __rtems__ */
+/*
+ * 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, and (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.
+ * 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.
+ */
+
+/* \summary: Hypertext Transfer Protocol (HTTP) printer */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <netdissect-stdinc.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "netdissect.h"
+#include "extract.h"
+
+/*
+ * Includes WebDAV requests.
+ */
+static const char *httpcmds[] = {
+	"GET",
+	"PUT",
+	"COPY",
+	"HEAD",
+	"LOCK",
+	"MOVE",
+	"POLL",
+	"POST",
+	"BCOPY",
+	"BMOVE",
+	"MKCOL",
+	"TRACE",
+	"LABEL",
+	"MERGE",
+	"DELETE",
+	"SEARCH",
+	"UNLOCK",
+	"REPORT",
+	"UPDATE",
+	"NOTIFY",
+	"BDELETE",
+	"CONNECT",
+	"OPTIONS",
+	"CHECKIN",
+	"PROPFIND",
+	"CHECKOUT",
+	"CCM_POST",
+	"SUBSCRIBE",
+	"PROPPATCH",
+	"BPROPFIND",
+	"BPROPPATCH",
+	"UNCHECKOUT",
+	"MKACTIVITY",
+	"MKWORKSPACE",
+	"UNSUBSCRIBE",
+	"RPC_CONNECT",
+	"VERSION-CONTROL",
+	"BASELINE-CONTROL",
+	NULL
+};
+
+void
+http_print(netdissect_options *ndo, const u_char *pptr, u_int len)
+{
+	txtproto_print(ndo, pptr, len, "http", httpcmds, RESP_CODE_SECOND_TOKEN);
+}
+#ifdef __rtems__
+#include "rtems-bsd-tcpdump-print-http-data.h"
+#endif /* __rtems__ */