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/* dgclose.c - dgclose */

#include <conf.h>
#include <kernel.h>
#include <proc.h>
#include <network.h>

/*------------------------------------------------------------------------
 *  dgclose  -  close a datagram pseudo device, making it available again
 *------------------------------------------------------------------------
 */
dgclose(devptr)
struct	devsw	*devptr;
{
	PStype	ps;
	struct	dgblk	*dgptr;
	struct	netq	*nqptr;
	int	nq;

	dgptr = (struct dgblk *) devptr->dvioblk;
	disable(ps);
	nq = dgptr->dg_netq;
	nqptr = &Net.netqs[nq];
	nqptr->valid = FALSE;
	nqptr->uport = -1;
	nqptr->pid = BADPID;
	dgptr->dg_state = DG_FREE;
	restore(ps);
	return(OK);
}

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