This module gives access to the routines of the GSSAPI library, as described in rfc2743 and rfc2744 and implemented by the Kerberos-1.2 distribution from MIT. . The API presented by this module is a mildly object oriented reinterpretation of the C API, where opaque C structures are Perl objects, but the style of function call has been left mostly untouched. As a result, most routines modify one or more of the parameters passed to them, reflecting the C call-by-reference (or call-by-value-return) semantics.