diff options
Diffstat (limited to 'packet-nntp.c')
-rw-r--r-- | packet-nntp.c | 141 |
1 files changed, 70 insertions, 71 deletions
diff --git a/packet-nntp.c b/packet-nntp.c index 5c8aedeef1..5d2580965d 100644 --- a/packet-nntp.c +++ b/packet-nntp.c @@ -2,7 +2,7 @@ * Routines for nntp packet dissection * Copyright 1999, Richard Sharpe <rsharpe@ns.aus.com> * - * $Id: packet-nntp.c,v 1.13 2000/09/11 16:16:02 gram Exp $ + * $Id: packet-nntp.c,v 1.14 2000/11/09 10:56:32 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@zing.org> @@ -51,104 +51,103 @@ static gint ett_nntp = -1; #define TCP_PORT_NNTP 119 static void -dissect_nntp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) +dissect_nntp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { gchar *type; - proto_tree *nntp_tree, *ti; - const u_char *data, *dataend; - const u_char *lineend, *eol; + proto_tree *nntp_tree; + proto_item *ti; + gint offset = 0; + const u_char *line; + gint next_offset; int linelen; - int max_data = pi.captured_len - offset; - OLD_CHECK_DISPLAY_AS_DATA(proto_nntp, pd, offset, fd, tree); + CHECK_DISPLAY_AS_DATA(proto_nntp, tvb, pinfo, tree); - data = &pd[offset]; - dataend = data + END_OF_FRAME; - if (dataend > data + max_data) - dataend = data + max_data; - - if (pi.match_port == pi.destport) + if (pinfo->match_port == pinfo->destport) type = "Request"; else type = "Response"; - if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "NNTP"); + pinfo->current_proto = "NNTP"; + + if (check_col(pinfo->fd, COL_PROTOCOL)) + col_add_str(pinfo->fd, COL_PROTOCOL, "NNTP"); - if (check_col(fd, COL_INFO)) { + if (check_col(pinfo->fd, COL_INFO)) { /* - * Put the first line from the buffer into the summary. + * Put the first line from the buffer into the summary + * (but leave out the line terminator). */ - lineend = find_line_end(data, dataend, &eol); - linelen = eol - data; - col_add_fstr(fd, COL_INFO, "%s: %s", type, - format_text(data, linelen)); + linelen = tvb_find_line_end(tvb, offset, -1, &next_offset); + line = tvb_get_ptr(tvb, offset, linelen); + col_add_fstr(pinfo->fd, COL_INFO, "%s: %s", type, + format_text(line, linelen)); } if (tree) { - - ti = proto_tree_add_item(tree, proto_nntp, NullTVB, offset, END_OF_FRAME, FALSE); - nntp_tree = proto_item_add_subtree(ti, ett_nntp); - - if (pi.match_port == pi.destport) { - proto_tree_add_boolean_hidden(nntp_tree, hf_nntp_request, NullTVB, 0, 0, TRUE); - } else { - proto_tree_add_boolean_hidden(nntp_tree, hf_nntp_response, NullTVB, 0, 0, TRUE); - } - - /* - * Show the request or response as text, a line at a time. - * XXX - for requests, we could display the stuff after the - * first line, if any, based on what the request was, and - * for responses, we could display it based on what the - * matching request was, although the latter requires us to - * know what the matching request was.... - */ - while (data < dataend) { - /* - * Find the end of the line. - */ - lineend = find_line_end(data, dataend, &eol); - linelen = lineend - data; + ti = proto_tree_add_item(tree, proto_nntp, tvb, offset, + tvb_length_remaining(tvb, offset), FALSE); + nntp_tree = proto_item_add_subtree(ti, ett_nntp); + + if (pinfo->match_port == pinfo->destport) { + proto_tree_add_boolean_hidden(nntp_tree, + hf_nntp_request, tvb, 0, 0, TRUE); + } else { + proto_tree_add_boolean_hidden(nntp_tree, + hf_nntp_response, tvb, 0, 0, TRUE); + } /* - * Put this line. + * Show the request or response as text, a line at a time. + * XXX - for requests, we could display the stuff after the + * first line, if any, based on what the request was, and + * for responses, we could display it based on what the + * matching request was, although the latter requires us to + * know what the matching request was.... */ - proto_tree_add_text(nntp_tree, NullTVB, offset, linelen, "%s", - format_text(data, linelen)); - offset += linelen; - data = lineend; - } + while (tvb_length_remaining(tvb, offset)) { + /* + * Find the end of the line. + */ + tvb_find_line_end(tvb, offset, -1, &next_offset); + + /* + * Put this line. + */ + proto_tree_add_text(nntp_tree, tvb, offset, + next_offset - offset, "%s", + tvb_format_text(tvb, offset, next_offset - offset)); + offset = next_offset; + } } } void proto_register_nntp(void) { - - static hf_register_info hf[] = { - { &hf_nntp_response, - { "Response", "nntp.response", - FT_BOOLEAN, BASE_NONE, NULL, 0x0, - "TRUE if NNTP response" }}, - - { &hf_nntp_request, - { "Request", "nntp.request", - FT_BOOLEAN, BASE_NONE, NULL, 0x0, - "TRUE if NNTP request" }} - }; - static gint *ett[] = { - &ett_nntp, - }; - - proto_nntp = proto_register_protocol("Network News Transfer Protocol", + static hf_register_info hf[] = { + { &hf_nntp_response, + { "Response", "nntp.response", + FT_BOOLEAN, BASE_NONE, NULL, 0x0, + "TRUE if NNTP response" }}, + + { &hf_nntp_request, + { "Request", "nntp.request", + FT_BOOLEAN, BASE_NONE, NULL, 0x0, + "TRUE if NNTP request" }} + }; + static gint *ett[] = { + &ett_nntp, + }; + + proto_nntp = proto_register_protocol("Network News Transfer Protocol", "nntp"); - proto_register_field_array(proto_nntp, hf, array_length(hf)); - proto_register_subtree_array(ett, array_length(ett)); + proto_register_field_array(proto_nntp, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_nntp(void) { - old_dissector_add("tcp.port", TCP_PORT_NNTP, dissect_nntp); + dissector_add("tcp.port", TCP_PORT_NNTP, dissect_nntp); } |