WaitForMultipleObjects - how to properly handle stdin and sockets (FTP client) - c

Question

I am writing a simple C FTP client. I have some problems with receiving data from both FTP (21) and FTP-DATA (passive) sockets. That's my main program loop:
input_handles[0] = GetStdHandle(STD_INPUT_HANDLE);
input_handles[1] = WSACreateEvent();
input_handles[2] = INVALID_HANDLE_VALUE;
WSAEventSelect(connection->socket, input_handles[1], FD_READ);
while (1) {
wait_result = WaitForMultipleObjectsEx(num_in_handles, input_handles, FALSE, INFINITE, FALSE);
if (wait_result == WAIT_OBJECT_0) {
fgets(input_line, input_len, stdin);
ftp_cmd(connection, input_line);
if (_strnicmp(input_line, "QUIT", 4) == 0) {
WSACloseEvent(input_handles[1]);
break;
}
}
if(wait_result == WAIT_OBJECT_0 + 1 || wait_result == WAIT_OBJECT_0 + 2) {
if (WaitForSingleObject(input_handles[1], 0) == WAIT_OBJECT_0) {
ftp_recv(connection, &cmd_output);
if (cmd_output != NULL) {
printf(cmd_output);
if (strncmp(cmd_output, "227", 3) == 0) { // 227 - enter passive mode
CHECK_ERROR(ftp_passive(connection, cmd_output, &input_handles[2]));
num_in_handles = 3;
}
if(strncmp(cmd_output, "226", 3) == 0) { // 226 - exit passive mode
ftp_passive_close(connection, &input_handles[2]);
num_in_handles = 2;
}
SAFE_FREE(cmd_output);
}
}
if(num_in_handles == 3 && WaitForSingleObject(input_handles[2], 0) == WAIT_OBJECT_0) {
ftp_recv_pasv(connection, &cmd_output);
if (cmd_output != NULL)
printf(cmd_output);
SAFE_FREE(cmd_output);
// WORKS GOOD WITH THIS UNCOMMENTED
//ftp_passive_close(connection, &input_handles[2]);
//num_in_handles = 2;
}
}
}
ftp_passive() opens a socket to the address given by server and creates WSA event (input_handles[2]). ftp_passive_close() closes this socket and event.
I have no idea why it works with the commented fragment. When it's commented, my client doesn't receive any more data from any socket.
What's wrong with my code?