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/* packet-irc.c
* Routines for MSX irc packet dissection
*
* $Id: packet-irc.c,v 1.3 2000/01/07 22:05:31 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-tftp.c
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include <string.h>
#include <glib.h>
#include "packet.h"
static int proto_irc = -1;
static int hf_irc_request = -1;
static int hf_irc_response = -1;
static int hf_irc_command = -1;
static gint ett_irc = -1;
void dissect_irc_request(proto_tree *tree, char *line, int offset, int len)
{
proto_tree_add_item_hidden(tree, hf_irc_request,
offset, len, TRUE);
proto_tree_add_text(tree, offset,
len, "Request Line: %s", line);
}
void dissect_irc_response(proto_tree *tree, char *line, int offset, int len)
{
proto_tree_add_item_hidden(tree, hf_irc_response,
offset, len, TRUE);
proto_tree_add_text(tree, offset,
len, "Response Line: %s", line);
}
void
dissect_irc(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
proto_tree *irc_tree, *ti;
char *tmpline;
int start, cur, len;
const u_char *i;
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "IRC");
if (check_col(fd, COL_INFO))
{
col_add_fstr(fd, COL_INFO, "%s",
(pi.match_port == pi.destport) ? "Request" : "Response");
}
if (tree)
{
ti = proto_tree_add_item(tree, proto_irc, offset, END_OF_FRAME, NULL);
irc_tree = proto_item_add_subtree(ti, ett_irc);
tmpline = (char *)g_malloc( pi.captured_len );
i = pd+offset;
while ( i < pd + pi.captured_len )
{
start = i - pd;
cur = 0;
len = 0;
tmpline[cur] = 0;
/* copy up to end or cr/nl */
while ( i < pd + pi.captured_len && *i != '\r' && *i != '\n' )
{
tmpline[cur++] = *(i++);
len++;
}
tmpline[cur] = 0;
/* skip any CR/NL */
while ( i < pd + pi.captured_len &&
(*i == '\r' || *i == '\n') )
{
i++;
len++;
}
if ( strlen(tmpline) > 0 )
{
if (pi.match_port == pi.destport)
{
dissect_irc_request(irc_tree, tmpline, start, len);
}
else
{
dissect_irc_response(irc_tree, tmpline, start, len);
}
}
}
g_free(tmpline);
tmpline = 0;
}
}
void
proto_register_irc(void)
{
static hf_register_info hf[] = {
{ &hf_irc_response,
{ "Response", "irc.response",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if IRC response" }},
{ &hf_irc_request,
{ "Request", "irc.request",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if IRC request" }},
{ &hf_irc_command,
{ "Command", "irc.command",
FT_STRING, BASE_NONE, NULL, 0x0,
"Command associated with request" }}
};
static gint *ett[] = {
&ett_irc,
};
proto_irc = proto_register_protocol("Internet Relay Chat", "irc");
proto_register_field_array(proto_irc, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
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