Return principal name (1)

This function will extract the Kerberos principal name from the input context token.

Function-specific parameters:

Address of a word containing the subfunction code (input)
Address of a word containing the context token length (input)
Address of a GSS-API context token (input)
Address of a 24-byte string block for use by the server
Address of the string block for the principal name (output). The data area supplied should be 240 bytes.
Address of a word to contain the return code (output)