static char* szHeader = "GET /demo HTTP/1.1\r\n"
		"Upgrade: WebSocket\r\n"
		"Connection: Upgrade\r\n"
		"Sec-WebSocket-Key2: 4 @1 46546xW%0l 1 5\r\n"
		"Host: example.com\r\n"
		"Sec-WebSocket-Key1: 12998 5 Y3 1 .P00\r\n"
		"Origin: http://example.com\r\n"
		"WebSocket-Protocol: sample\r\n"
		"\r\n" 
		"^n:ds[4U";

int WsciService::getHeaders(char* szHeaders, WEBSOCKET_HEADER* wsHeaderInOut){
	if ( szHeaders==(char*)NULL || wsHeaderInOut==(WEBSOCKET_HEADER*)NULL ) return -1;
	char* szKey1Pattern = "(Sec-WebSocket-Key1:).*";
	//char* szKey1Pattern = "(Sec-WebSocket-Key1:)[[:s:]](.+\\r\\n)";
	//char* szKey1Pattern = "(Sec-WebSocket-Key1:)([:print:])(.+\\r\\n)";
	//char* szKey1Pattern = "(Sec-WebSocket-Key1:)(.*)(.+\\r\\n)";

	//char* p = strstr(szHeaders, "Sec-WebSocket-Key1:");
	//if ( p!=(char*)NULL ) printf("%s", p);
	
	regex_t regex;
	int rc = regcomp(&regex, szKey1Pattern, 0);
	if ( rc==0 ) {
		regmatch_t pm[1];
		rc = regexec(&regex, szHeaders, 1, pm, 0);
		if ( rc==0 ) {
			::memcpy(wsHeaderInOut->szK1, szHeaders + pm[0].rm_so, pm[0].rm_eo - pm[0].rm_so);
			printf("Begin: %d\nEnd: %d\n", pm[0].rm_so, pm[0].rm_eo);
		} else {
			char szError[1024];
			regerror(rc, &regex, szError, sizeof(szError));
			printf("Exec error: %s\n", szError);
		}
	} else {
		char szError[1024];
		regerror(rc, &regex, szError, sizeof(szError));
		printf("Compile error: %s\n", szError);
	}
	regfree(&regex);