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Oracle Solaris Security for Developers Guide
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Document Information


1.  Oracle Solaris Security for Developers (Overview)

2.  Developing Privileged Applications

3.  Writing PAM Applications and Services

4.  Writing Applications That Use GSS-API

5.  GSS-API Client Example

GSSAPI Client Example Overview

GSSAPI Client Example Structure

Running the GSSAPI Client Example

GSSAPI Client Example: main() Function

Opening a Connection With the Server

Establishing a Security Context With the Server

Translating a Service Name into GSS-API Format

Establishing a Security Context for GSS-API

Miscellaneous GSSAPI Context Operations on the Client Side

Wrapping and Sending a Message

Reading and Verifying a Signature Block From a GSS-API Client

Deleting the Security Context

6.  GSS-API Server Example

7.  Writing Applications That Use SASL

8.  Introduction to the Oracle Solaris Cryptographic Framework

9.  Writing User-Level Cryptographic Applications and Providers

10.  Using the Smart Card Framework

A.  Sample C-Based GSS-API Programs

B.  GSS-API Reference

C.  Specifying an OID

D.  Source Code for SASL Example

E.  SASL Reference Tables

F.  Packaging and Signing Cryptographic Providers



Miscellaneous GSSAPI Context Operations on the Client Side

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:

The source code for these operations is shown in the following example.

Note - The source code for this example is also available through the Sun download center. See

Example 5-5 gss-client: call_server() Establish Context

/* Save and then restore the context */
     maj_stat = gss_export_sec_context(&min_stat,
     if (maj_stat != GSS_S_COMPLETE) {
             display_status("exporting context", maj_stat, min_stat);
             return -1;
     maj_stat = gss_import_sec_context(&min_stat,
     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 */

     /* Get context information */
     maj_stat = gss_inquire_context(&min_stat, context,
                                    &src_name, &targ_name, &lifetime,
                                    &mechanism, &context_flags,
     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;