As a sample program, gss-client performs some functions for demonstration purposes. The following source code is not essential for the basic task, but is provided to demonstrate these other operations:
Saving and restoring the context
Displaying context flags
Obtaining the context status
The source code for these operations is shown in the following example.
Example 16 GSSAPI Client call_server() Function to Establish Context/* Save and then restore the context */
maj_stat = gss_export_sec_context(&min_stat,
&context,
&context_token);
if (maj_stat != GSS_S_COMPLETE) {
display_status("exporting context", maj_stat, min_stat);
return -1;
}
maj_stat = gss_import_sec_context(&min_stat,
&context_token,
&context);
if (maj_stat != GSS_S_COMPLETE) {
display_status("importing context", maj_stat, min_stat);
return -1;
}
(void) gss_release_buffer(&min_stat, &context_token);
/* display the flags */
display_ctx_flags(ret_flags);
/* Get context information */
maj_stat = gss_inquire_context(&min_stat, context,
&src_name, &targ_name, &lifetime,
&mechanism, &context_flags,
&is_local,
&is_open);
if (maj_stat != GSS_S_COMPLETE) {
display_status("inquiring context", maj_stat, min_stat);
return -1;
}
if (maj_stat == GSS_S_CONTEXT_EXPIRED) {
printf(" context expired\n");
display_status("Context is expired", maj_stat, min_stat);
return -1;
}