Changing Values and Destroying a Context

Once a context has been set, the application may need to change QOP and service values for individual data units being transmitted. (For example, you might want a program to encrypt a password but not a login name.) rpc_gss_set_defaults() allows you to do so:

Example 4-30 rpc_gss_set_defaults()

rpc_gss_set_defaults(clnt->clnt_auth, rpc_gss_svc_privacy, qop);

. . .

In this case, the security service is set to privacy (see "Creating a Context"). qop is a pointer to a string naming the new QOP.

Contexts are destroyed in the usual way, with auth_destroy().

For more information on changing service and QOP, see the rpc_gss_set_defaults(3N) man page.