+int
+ssh_update_card(AuthenticationConnection *auth, int add, const char *reader_id, const char *pin)
+{
+ Buffer msg;
+ int type;
+
+ buffer_init(&msg);
+ buffer_put_char(&msg, add ? SSH_AGENTC_ADD_SMARTCARD_KEY :
+ SSH_AGENTC_REMOVE_SMARTCARD_KEY);
+ buffer_put_cstring(&msg, reader_id);
+ buffer_put_cstring(&msg, pin);
+ if (ssh_request_reply(auth, &msg, &msg) == 0) {
+ buffer_free(&msg);
+ return 0;
+ }
+ type = buffer_get_char(&msg);
+ buffer_free(&msg);
+ return decode_reply(type);
+}
+