Retrieve the array of DKIM_SIGINFO handles associated with a
||dkim_getsiglist() can be called at any time after
dkim_eoh() has been called.
||Message-specific handle, returned by
||A pointer to an array of DKIM_SIGINFO handles
representing all of the signatures present on the message being
||A pointer to an integer which will be updated to contain
the number of signatures on the message being handled (and thus,
the size of the array referenced by sigs).
||No siglist message has been stored for this handle. This usually
means dkim_eoh() has not yet
||The pointer to the signature array and the count have been returned
in the provided locations.
- The array returned is allocated and maintained by the library, and
must not be deallocated by the caller.
- Initially, the array's order mirrors the order of signature fields found
in the message being verified. The caller is free to rearrange this order.
This same array is passed to all of the callbacks, so reordering done in
one will be visible to the others.