neglecting to assign them in error cases. We'd return from the C function
into the cig C stub with random garbage still in these pointers. The
string rep converters would then treat this garbage as a real pointer to
be copied into malloc'd storage, and havoc would result.
I fixed the code to assign 0 to the pointers in error cases. I should fix
cig to pre-initialise out parameters. The only real problem code was in
userinfo1.c, but I scanned all the sources, and fixed a few suspicious cases
here and there as well.