packetio.c

/*
 * $Id: //devel/tools/main/nbtscan/packetio.c#1 $
 *
 * written by :	Stephen J. Friedl
 *		Software Consultant
 *		steve@unixwiz.net
 *
 *	This is our module for performing packet I/O. In the simple case
 *	of "direct" connections, we simply perform a "sendto" and "recvfrom",
 *	but when we're using our UDP proxy we may do other stuff.
 *
 *	NOTE: we dumped all our "proxy" stuff - it was pointless.
 */
#include "nbtscan_common.h"
#include "nbtdefs.h"

int sendpacket_direct(SOCKET ofd,
		const void *pak, int len,
		const struct sockaddr_in *dst)
{
	assert(pak != 0);
	assert(dst != 0);

	return sendto_in(ofd, pak, len, 0, dst);
}

int recvpacket_direct(SOCKET ifd, void *pak, int maxlen, struct sockaddr_in *src)
{
#ifdef _SCO_DS
int	srclen = sizeof *src;
#else
size_t	srclen = sizeof *src;
#endif

	assert(pak != 0);
	assert(src != 0);

	return recvfrom_in(ifd, pak, maxlen, 0, src, &srclen);
}