Added 'text2pcap', a utility to convert text hexdumps into pcap

[obnox/wireshark/wip.git] / text2pcap-scanner.l

diff --git a/text2pcap-scanner.l b/text2pcap-scanner.l
new file mode 100644 (file)
index 0000000..63835a1
--- /dev/null
+++ b/text2pcap-scanner.l
@@ -0,0 +1,71 @@
+/* -*-mode: flex-*- */
+
+%{
+    
+/********************************************************************************
+ *
+ * text2pcap-scanner.l
+ *
+ * Utility to convert an ASCII hexdump into a libpcap-format capture file
+ *
+ * (c) Copyright 2001 Ashok Narayanan <ashokn@cisco.com>
+ *
+ * $Id: text2pcap-scanner.l,v 1.1 2001/05/16 21:32:04 ashokn Exp $
+ * 
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ * 
+ * 
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *******************************************************************************/
+    
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "text2pcap.h"
+    
+%}
+
+hexdigit [0-9A-Fa-f]
+directive #TEXT2PCAP.*
+comment #[^W].*
+byte [0-9A-Fa-f][0-9A-Fa-f][ \t]
+byte_eol [0-9A-Fa-f][0-9A-Fa-f]\n
+offset [0-9A-Fa-f]+[ \t\n]
+text [^ \n\t]+
+mailfwd >
+eol \r?\n\r?
+
+%%
+
+{byte}            { parse_token(T_BYTE, yytext); }
+{byte_eol}        { parse_token(T_BYTE, yytext); parse_token(T_EOL, NULL); }
+{offset}          { parse_token(T_OFFSET, yytext); }
+{mailfwd}{offset} { parse_token(T_OFFSET, yytext+1); }
+{eol}             { parse_token(T_EOL, NULL); }
+[ \t]             ; /* ignore whitespace */
+{directive}       { parse_token(T_DIRECTIVE, yytext); }
+{comment}         ; /* ignore comments */
+{text}            { parse_token(T_TEXT, yytext); }
+
+%%
+
+int yywrap()
+{
+    return 1;
+}