int find_free_port(int start, int end) {
int port;
if (start <= 0) {
start = 1024;
}
if (end <= 0 || end > 65530) {
end = 65530;
}
for (port = start; port <= end; port++) {
int sock = listen_tcp(port, htonl(INADDR_ANY), 0);
if (sock >= 0) {
close(sock);
sock = listen_tcp(port, htonl(INADDR_LOOPBACK), 0);
if (sock >= 0) {
close(sock);
return port;
}
}
}
return 0;
}
void listen_call_handler(unsigned long long uniqueSockID, int threads,
unsigned char *buf, ssize_t len) {
int index;
int backlog;
u_char *pt;
PRINT_DEBUG("");
pt = buf;
backlog = *(int *) pt;
pt += sizeof(int);
if (pt - buf != len) {
PRINT_DEBUG("READING ERROR! CRASH, diff=%d len=%d", pt - buf, len);
nack_send(uniqueSockID, listen_call);
return;
}
PRINT_DEBUG("");
index = findjinniSocket(uniqueSockID);
PRINT_DEBUG("");
if (index == -1) {
PRINT_DEBUG(
"CRASH !!! socket descriptor not found into jinni sockets SO pipe descriptor to reply is not found too ");
nack_send(uniqueSockID, listen_call);
return;
}
PRINT_DEBUG("");
if (jinniSockets[index].type == SOCK_DGRAM)
listen_udp(uniqueSockID, backlog);
else if (jinniSockets[index].type == SOCK_STREAM)
listen_tcp(uniqueSockID, backlog);
else if (jinniSockets[index].type == SOCK_RAW) {
listen_icmp(uniqueSockID, backlog);
} else {
PRINT_DEBUG("unknown socket type has been read !!!");
nack_send(uniqueSockID, listen_call);
}
}
// main function
int _tmain(int argc, _TCHAR* argv[])
{
int code = 0;
int interactive = 0;
int tcp_port = 13110;
int com_port = 0;
// set console to display special characters correctly
setlocale(LC_ALL, "");
printf("WinOPDI test program. Arguments: [-i] [-tcp <port>] [-com <port>]\n");
printf("-i starts the interactive master.\n");
for (int i = 1; i < argc; i++) {
if (_tcscmp(argv[i], _T("-i")) == 0) {
interactive = 1;
} else
if (i < argc - 1) {
if (_tcscmp(argv[i], _T("-tcp")) == 0) {
// parse tcp port number
tcp_port = _wtoi(argv[++i]);
if ((tcp_port < 1) || (tcp_port > 65535)) {
printf("Invalid TCP port number: %d\n", tcp_port);
exit(1);
}
} else if (_tcscmp(argv[i], _T("-com")) == 0) {
// parse com port number
com_port = _wtoi(argv[++i]);
if ((com_port < 1) || (com_port > 32)) {
printf("Invalid COM port number: %d\n", com_port);
exit(1);
}
} else {
printf("Unrecognized argument: %s\n", argv[i]);
exit(1);
}
}
else {
printf("Invalid syntax: missing argument\n");
exit(1);
}
}
// master?
if (interactive) {
code = start_master();
} else {
opdi_set_timeout(65535);
// slave
if (com_port > 0) {
LPCTSTR comPort = (LPCTSTR)malloc(6);
wsprintf((LPTSTR)comPort, _T("COM%d"), com_port);
code = listen_com(comPort, 115000, ONESTOPBIT, NOPARITY, 8, 1000);
}
else {
code = listen_tcp(tcp_port);
}
}
printf("Exit code: %d", code);
exit(code);
}
