Specifying a Non-Default Mechanism

As a general rule, any application using the GSS-API should not attempt to specify a particular mechanism, but instead use the default mechanism provided by the GSS-API implementation. The default mechanism is specified by setting the gss_OID representing the mechanism to the value GSS_C_NULL_OID.

Because setting a non-default mechanism is not recommended, this part of the program does not cover it here. Interested readers can see how the client application parses the user-input mechanism name by looking at the code in parse_oid() and by looking at Appendix C, Specifying an OID, which explains how to using non-default OIDs.