Jeff
I commented out fclose() and wireshark still crashed because the file is
not there.
Any more suggestions...??
Thanks for your help.
Brian
Jeff Morriss wrote:
> Probably because fclose() is called even if !isnetalivefilehere (e.g.,
> the file could not be opened)...
>
> Brian Oleksa wrote:
>
>> Olivier
>>
>> Looking at the code below.....I was wondering why wireshark exits if the
>> netalive port file is not available...??
>>
>> Basically....if the netalive ports file is there...then I want to
>> dissect netalive packets. But if the netalive ports file is NOT
>> there...then I want to continue to dissect other packets.
>>
>> But .....what I am finding out is that if the net alive ports file is
>> NOT there....wireshark automatically shuts down. It doesn't even start
>> up correctly.
>>
>> What am I missing here.....??
>>
>> I am basically registering 2-3 protocols in 1 file. One protocol is my
>> companies basic protocol that is open to the public. But the other
>> "netalive" protocol is not open to the public
>> so those that have netalive access will be able to dissect them.
>>
>>
>> void proto_reg_handoff_netalive(void) {
>> static gboolean isinitialized = FALSE;
>> gboolean isnetalivefilehere = TRUE;
>> int netaliveportnumber;
>>
>> FILE *fpnetalive;
>>
>> #if defined(_WIN32)
>> fpnetalive = fopen("netaliveport.txt", "r");
>> #else
>> fpnetalive = fopen("netaliveport", "r");
>> #endif
>>
>> if (fpnetalive == NULL) {
>> isnetalivefilehere = FALSE;
>> }
>>
>> //if netalive ports file is there....then go into this loop.
>> //if it is not there then just continue using wireshark
>> if(isnetalivefilehere)
>> {
>> while (fscanf(fpnetalive, "%d\n", &netaliveportnumber) != EOF) {
>>
>> printf("Net Alive Port number = %d\n", netaliveportnumber);
>>
>> if (!isinitialized) {
>> netalivedata_handle = find_dissector("data");
>> netalive_handle = create_dissector_handle(dissect_netalive,
>> proto_netalive);
>> printf("I am here 1\n");
>> //This line read the port number from the file.
>> dissector_add("udp.port", netaliveportnumber, netalive_handle);
>> }
>>
>> }
>> }
>>
>> fclose(fpnetalive);
>>
>> }
>>
>> Thanks,
>> Brian
>>
>>
>>
>> wsgd wrote:
>>
>>> netalive_sub_item is not initialized
>>>
>>> Olivier
>>>
>>> Brian Oleksa a écrit :
>>>
>>>
>>>> @Wiresharkers
>>>>
>>>> I have created this helen dissector. It has been running great ever
>>>> since then.
>>>>
>>>> I have some NON-helen packets that I want to dissect. Instead of
>>>> writing another dissector, I added it to the packet-helen.c code.
>>>>
>>>> As you can see at the top of this file I call a new procedure called:
>>>> void proto_reg_handoff_netalive(void)
>>>>
>>>> Which works great and reads in the port # from the file correctly.
>>>>
>>>> I even get into the void dissect_netalive(tvbuff_t *tvb,
>>>> packet_info *pinfo, proto_tree *tree) procedure with no problems:
>>>>
>>>> But I am not dissecting anything. The only thing that I get in the
>>>> wireshark GUI is the word "NETALIVE".
>>>>
>>>> Why I am not seeing the dissection tree under the NETALIVE protocol....??
>>>>
>>>> Basically.......all I did was I mirrored the helen protocol....it
>>>> compiles fine but I do not see my packets being dissected.
>>>>
>>>> Any thoughts or suggestions...? The latest code is attached.
>>>>
>>>> Thank you very much for your help.
>>>>
>>>> It is greatly appreciated.
>>>>
>>>> Brian
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>>
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>>>>
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