/* udpnxtp.c - udpnxtp */#include <conf.h>#include <kernel.h>#include <network.h>/*------------------------------------------------------------------------ *  udpnxtp  -  return the next available UDP local "port" number *	N.B.: assumes udpmutex HELD *------------------------------------------------------------------------ */unsigned short udpnxtp(){	static	unsigned short	lastport = ULPORT;	Bool			inuse = TRUE;	struct	upq		*pup;	int			i;	while (inuse) {		lastport++;		if (lastport == 0)			lastport = ULPORT;		inuse = FALSE;		for (i=0; !inuse && i<UPPS ; i++) {			pup = &upqs[i];			inuse = pup->up_valid && pup->up_port == lastport;		}	}	return lastport;}