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, 26 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/signature.h b/freebsd/contrib/tcpdump/signature.h
new file mode 100644
index 00000000..e48b7229
--- /dev/null
+++ b/freebsd/contrib/tcpdump/signature.h
@@ -0,0 +1,26 @@
+/* 
+ * 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.
+ *
+ * Functions for signature and digest verification.
+ *
+ * Original code by Hannes Gredler (hannes@juniper.net)
+ */
+
+/* @(#) $Header: /tcpdump/master/tcpdump/signature.h,v 1.1 2008-08-16 11:36:20 hannes Exp $ (LBL) */
+
+/* signature checking result codes */
+#define SIGNATURE_VALID		0
+#define SIGNATURE_INVALID	1
+#define CANT_CHECK_SIGNATURE	2
+
+extern const struct tok signature_check_values[];
+extern int signature_verify (const u_char *, u_int, u_char *);