gss_channel_bindings_struct 结构和gss_channel_bindings_t 指针的定义的格式如下:
typedef struct gss_channel_bindings_struct { OM_uint32 initiator_addrtype; gss_buffer_desc initiator_address; OM_uint32 acceptor_addrtype; gss_buffer_desc acceptor_address; gss_buffer_desc application_data; } *gss_channel_bindings_t;