Re: Adding tap to dissector causes build errors in tap.h?

[Bill Meier <wmeier () newsguy com>]

Shawn Mayer wrote:
> After reverting back to the original file I found that tap.h throws 
> errors even if the only change I make is adding the "#include <tap.h>". 
> I've tried including it in packet-aim.c and packet-aim-messaging.c with 
> the same results:
>
>
> register.c
> packet-aim-messaging.c
> c:\wireshark\epan\tap.h(31) : error C2143: syntax error : missing ')' 
> before '*'
>
> c:\wireshark\epan\tap.h(31) : error C2081: 'packet_info' : name in 
> formal parame
> ter list illegal

Looking at one of lines the compiler is complaining about:

typedef gboolean (*tap_packet_cb)(void *tapdata, packet_info *pinfo, 
epan_dissect_t *edt, const void *data);

it seems that the references to 'packet_info' and 'epan_dissect_t'  are 
probably the cause of the complaints.

Doing a grep for these symbols over the wireshark .h source shows that 
these are defined in

epan/packet_info.h
and epan/epan.h


Alternatively (and probably better): grepping the epan/dissector sources 
for dissector .c files which use tap.h  and then examining same, it 
becomes clear that

including packet.h before including tap.h also works (since packet.h 
includes both packet_info.h and epan.h).

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