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/* packet-imap.c
* Routines for imap packet dissection
* Copyright 1999, Richard Sharpe <rsharpe@ns.aus.com>
*
* $Id: packet-imap.c,v 1.9 2000/08/13 14:08:16 deniel 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_imap = -1;
static int hf_imap_response = -1;
static int hf_imap_request = -1;
static gint ett_imap = -1;
#define TCP_PORT_IMAP 143
static void
dissect_imap(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
proto_tree *imap_tree, *ti;
gchar rr[50], rd[1500];
int i1 = (u_char *)strchr(pd + offset, ' ') - (pd + offset); /* Where is that space */
int i2;
int max_data = pi.captured_len - offset;
OLD_CHECK_DISPLAY_AS_DATA(proto_imap, pd, offset, fd, tree);
memset(rr, '\0', sizeof(rr));
memset(rd, '\0', sizeof(rd));
if ((i1 > max_data) || (i1 <= 0)) {
i1 = max_data;
strncpy(rr, pd + offset, MIN(max_data - 2, sizeof(rr) - 1));
}
else {
strncpy(rr, pd + offset, MIN(i1, sizeof(rr) - 1));
i2 = ((u_char *)strchr(pd + offset + i1 + 1, '\r') - (pd + offset)) - i1 - 1;
if (i2 > max_data - i1 - 1 || i2 <= 0) {
i2 = ((u_char *)strchr(pd + offset + i1 + 1, '\n') - (pd + offset)) - i1 - 1;
if (i2 > max_data - i1 - 1 || i2 <= 0)
i2 = max_data - i1 - 1;
}
strncpy(rd, pd + offset + i1 + 1, MIN(i2, sizeof(rd) - 1));
}
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "IMAP");
if (check_col(fd, COL_INFO)) {
col_add_fstr(fd, COL_INFO, "%s: %s %s", (pi.match_port == pi.destport)? "Request" : "Response", rr, rd);
}
if (tree) {
ti = proto_tree_add_item(tree, proto_imap, NullTVB, offset, END_OF_FRAME, FALSE);
imap_tree = proto_item_add_subtree(ti, ett_imap);
if (pi.match_port == pi.destport) { /* Request */
proto_tree_add_boolean_hidden(imap_tree, hf_imap_request, NullTVB, offset, i1, TRUE);
proto_tree_add_text(imap_tree, NullTVB, offset, i1, "Request Tag: %s", rr);
proto_tree_add_text(imap_tree, NullTVB, offset + i1 + 1, END_OF_FRAME, "Request: %s", rd);
}
else {
proto_tree_add_boolean_hidden(imap_tree, hf_imap_response, NullTVB, offset, i1, TRUE);
proto_tree_add_text(imap_tree, NullTVB, offset, i1, "Response Tag: %s", rr);
proto_tree_add_text(imap_tree, NullTVB, offset + i1 + 1, END_OF_FRAME, "Response: %s", rd);
}
}
}
void
proto_register_imap(void)
{
static hf_register_info hf[] = {
{ &hf_imap_response,
{ "Response", "imap.response",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if IMAP response" }},
{ &hf_imap_request,
{ "Request", "imap.request",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if IMAP request" }}
};
static gint *ett[] = {
&ett_imap,
};
proto_imap = proto_register_protocol("Internet Message Access Protocol",
"imap");
proto_register_field_array(proto_imap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_imap(void)
{
old_dissector_add("tcp.port", TCP_PORT_IMAP, dissect_imap);
}
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