forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
"{old_}heur_dissector_add()", "{old_}conv_dissector_add()", and "register_dissector()", so that an entry in those tables has associated with it the protocol index of the protocol the dissector handles (or -1, if there is no protocol index for it). This is for future use in a number of places. (Arguably, "proto_register_protocol()" should take a dissector pointer as an argument, but 1) it'd have to handle both regular and heuristic dissectors; 2) making it take either a "dissector_t" or a union of that and a "heur_dissector_t" introduces some painful header-file interdependencies so I'm punting on that for now. As with other Ethereal internal APIs, these APIs are subject to change in the future, at least until Ethereal 1.0 comes out....) svn path=/trunk/; revision=2849
173 lines
4.1 KiB
C
173 lines
4.1 KiB
C
/* packet-irc.c
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* Routines for MSX irc packet dissection
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*
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* $Id: packet-irc.c,v 1.11 2001/01/09 06:31:37 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-tftp.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#include <string.h>
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#include <glib.h>
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#include "packet.h"
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static int proto_irc = -1;
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static int hf_irc_request = -1;
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static int hf_irc_response = -1;
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static int hf_irc_command = -1;
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static gint ett_irc = -1;
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#define TCP_PORT_IRC 6667
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/* good candidate for dynamic port specification */
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static void
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dissect_irc_request(proto_tree *tree, char *line, int offset, int len)
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{
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proto_tree_add_boolean_hidden(tree, hf_irc_request, NullTVB,
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offset, len, TRUE);
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proto_tree_add_text(tree, NullTVB, offset,
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len, "Request Line: %s", line);
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}
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static void
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dissect_irc_response(proto_tree *tree, char *line, int offset, int len)
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{
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proto_tree_add_boolean_hidden(tree, hf_irc_response, NullTVB,
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offset, len, TRUE);
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proto_tree_add_text(tree, NullTVB, offset,
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len, "Response Line: %s", line);
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}
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static void
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dissect_irc(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
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{
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proto_tree *irc_tree, *ti;
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char *tmpline;
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int start, cur, len;
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const u_char *i;
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OLD_CHECK_DISPLAY_AS_DATA(proto_irc, pd, offset, fd, tree);
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if (check_col(fd, COL_PROTOCOL))
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col_set_str(fd, COL_PROTOCOL, "IRC");
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if (check_col(fd, COL_INFO))
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{
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col_add_fstr(fd, COL_INFO, "%s",
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(pi.match_port == pi.destport) ? "Request" : "Response");
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}
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if (tree)
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{
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ti = proto_tree_add_item(tree, proto_irc, NullTVB, offset, END_OF_FRAME, FALSE);
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irc_tree = proto_item_add_subtree(ti, ett_irc);
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tmpline = (char *)g_malloc( pi.captured_len );
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i = pd+offset;
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while ( i < pd + pi.captured_len )
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{
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start = i - pd;
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cur = 0;
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len = 0;
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tmpline[cur] = 0;
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/* copy up to end or cr/nl */
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while ( i < pd + pi.captured_len && *i != '\r' && *i != '\n' )
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{
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tmpline[cur++] = *(i++);
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len++;
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}
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tmpline[cur] = 0;
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/* skip any CR/NL */
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while ( i < pd + pi.captured_len &&
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(*i == '\r' || *i == '\n') )
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{
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i++;
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len++;
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}
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if ( strlen(tmpline) > 0 )
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{
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if (pi.match_port == pi.destport)
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{
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dissect_irc_request(irc_tree, tmpline, start, len);
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}
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else
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{
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dissect_irc_response(irc_tree, tmpline, start, len);
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}
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}
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}
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g_free(tmpline);
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tmpline = 0;
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}
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}
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void
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proto_register_irc(void)
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{
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static hf_register_info hf[] = {
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{ &hf_irc_response,
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{ "Response", "irc.response",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"TRUE if IRC response" }},
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{ &hf_irc_request,
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{ "Request", "irc.request",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"TRUE if IRC request" }},
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{ &hf_irc_command,
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{ "Command", "irc.command",
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FT_STRING, BASE_NONE, NULL, 0x0,
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"Command associated with request" }}
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};
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static gint *ett[] = {
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&ett_irc,
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};
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proto_irc = proto_register_protocol("Internet Relay Chat", "IRC", "irc");
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proto_register_field_array(proto_irc, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_irc(void)
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{
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old_dissector_add("tcp.port", TCP_PORT_IRC, dissect_irc, proto_irc);
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}
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