dgdump.c

来自「TCP-IP红宝书源代码」· C语言 代码 · 共 33 行

/* dgdump.c - dgdump */

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

/*------------------------------------------------------------------------
 *  dgdump  -  dump the datagram pseudo device control blocks
 *------------------------------------------------------------------------
 */
int
dgdump(void)
{
	struct	dgblk	*pdg;
	int		i;

	for (i=0 ; i<Ndg ; ++i) {
		pdg = &dgtab[i];
		if (pdg->dg_state == DGS_FREE)
			continue;
		kprintf("Dev=%2d: ",pdg->dg_dnum);
		kprintf("lport=%4d, fport=%4d, ", pdg->dg_lport,
			pdg->dg_fport);
		kprintf("mode=%03o, xport=%2d addr=%d.%d.%d.%d\n",
			pdg->dg_mode, pdg->dg_xport,
			(pdg->dg_fip >> 24) & 0xff,
			(pdg->dg_fip >> 16) & 0xff,
			(pdg->dg_fip >> 8) &0377,
			pdg->dg_fip & 0xff);
	}
	return OK;
}