prashanth joshi wrote:
the function to extract the data are,
tvb_get_uint8, tvb_get_ntohs and ( guint32 ) tvb_get_ntohl.
How to extract a 64 bit data. ie guint64 data.
tvb_get_ntoh64() or tvb_get_letoh64(). (I'll update doc/README.developer.)
Also I wanted to know whether adding a local variable to the display
tree has got the chances of making dangling reference occur. ( during
run time the display tree is built and when run time is just about to
end , the display tree will be acted upon by ethereal. So during this
time it may refer to a data which was locally defined in a function
previously but is no longer in use.)
No. A copy of the value supplied to a proto_tree_add_ routine is made -
even if the value points to, for example, a string.
(Note that if the local variable is a string buffer, you'd better make
sure the string buffer is big enough to handle the largest possible
string in a packet, otherwise you are at risk of a buffer overflow. We
suggest you use routines that return an emem-allocated string buffer
instead.)
