Wireshark mailing list archives
Re: Dissector callback definition
From: Stephen Fisher <steve () stephen-fisher com>
Date: Wed, 2 Dec 2009 11:30:41 -0700
On Dec 2, 2009, at 11:08 AM, Joshua Wright wrote:
The README.developer sample code shows the dissector callback function as shown: /* Code to actually dissect the packets */ static int dissect_PROTOABBREV(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { /* ... */ /* Return the amount of data this dissector was able to dissect */ return tvb_length(tvb); } However, other source shows this function as having return type static void. Is it not necessary to return the number of bytes the dissector processed any longer?
Returning the number of bytes dissected is the new and preferred method of handling dissectors. In order to have the number of bytes dissected handled, the dissector needs to be registered as a new style one such as is shown in README.developer: PROTOABBREV_handle = new_create_dissector_handle(dissect_PROTOABBREV, proto_PROTOABBREV); Steve ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- Dissector callback definition Joshua Wright (Dec 02)
- Re: Dissector callback definition Stephen Fisher (Dec 02)