No naked if allowed!

House style forbids naked condition statements, comments should start with a space character and be on their own line. Good luck!

Input

#include 
if (recvfrom(s, (char*)&ms, sizeof(ms), 0, foo, bar) >= 0) //receive initial message frame
{
	f++;
	if (f == snwseq) //if its the right sequence
	{
		if (sendto(s, (char*)&a, sizeof(a), 0, foo, bar) > 0) //Send ACK
			log << "Send ACK " << snwseq << ".\n";
		else
			cout << "Error!" << endl;
	}
	else //wrong sequence
	{
		receive_packet_transfer(s, a, sa, f, slen, snwseq, num); //wait for correct packet
	}
}
else
	cout << "Error!" << endl;

Output

#include 
if (recvfrom(s, (char*)&ms, sizeof(ms), 0, foo, bar) >= 0) {
	// receive initial message frame
	f++;
	if (f == snwseq) {
		// if its the right sequence
		if (sendto(s, (char*)&a, sizeof(a), 0, foo, bar) > 0) {
			// Send ACK
			log << "Send ACK " << snwseq << ".\n";
		} else {
			cout << "Error!" << endl;
		}
	} else {
		// wrong sequence
		receive_packet_transfer(s, a, sa, f, slen, snwseq, num);
	}
} else {
	cout << "Error!" << endl;
}