+/*********************************************************************
+ *
+ * Function : client_has_unsupported_expectations
+ *
+ * Description : Checks if the client used an unsupported expectation
+ * in which case an error message is delivered.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ *
+ * Returns : TRUE if an error response has been generated, or
+ * FALSE if the request doesn't look invalid.
+ *
+ *********************************************************************/
+static int client_has_unsupported_expectations(const struct client_state *csp)
+{
+ if ((csp->flags & CSP_FLAG_UNSUPPORTED_CLIENT_EXPECTATION))
+ {
+ log_error(LOG_LEVEL_ERROR,
+ "Rejecting request from client %s with unsupported Expect header value",
+ csp->ip_addr_str);
+ log_error(LOG_LEVEL_CLF,
+ "%s - - [%T] \"%s\" 417 0", csp->ip_addr_str, csp->http->cmd);
+ write_socket(csp->cfd, UNSUPPORTED_CLIENT_EXPECTATION_ERROR_RESPONSE,
+ strlen(UNSUPPORTED_CLIENT_EXPECTATION_ERROR_RESPONSE));
+
+ return TRUE;
+ }
+
+ return FALSE;
+
+}
+
+