netrom_gr.c

Linux下网络相关工具源代码。

/*
 * lib/netrom_gr.c    This file contains an implementation of the NET/ROM
 *                      route support functions.
 *
 * Version:     $Id: netrom_gr.c,v 1.4 1999/01/05 20:53:55 philip Exp $
 *
 * Author:      Bernd Eckenfels, <[e-mail]>
 *              Copyright 1999 Bernd Eckenfels, Germany
 *              base on Code from Jonathan Naylor <[e-mail]>
 *
 * Changes:
 * 980701 {0.02} Arnaldo Carvalho de Melo   GNU gettext instead of catgets
 * 
 *
 *              This program is free software; you can redistribute it
 *              and/or  modify it under  the terms of  the GNU General
 *              Public  License as  published  by  the  Free  Software
 *              Foundation;  either  version 2 of the License, or  (at
 *              your option) any later version.
 */
#include "config.h"

#if HAVE_AFNETROM
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include "net-support.h"
#include "pathnames.h"
#include "intl.h"

/* UGLY */

int NETROM_rprint(int options)
{
    FILE *f1 = fopen(_PATH_PROCNET_NR_NODES, "r");
    FILE *f2 = fopen(_PATH_PROCNET_NR_NEIGH, "r");
    char buffer[256];
    int qual, n, w;
    /*int ext = options & FLAG_EXT;
       int numeric = options & FLAG_NUM; */

    f1 = fopen(_PATH_PROCNET_NR_NODES, "r");
    if (!f1) perror(_PATH_PROCNET_NR_NODES);
    f2 = fopen(_PATH_PROCNET_NR_NEIGH, "r");
    if (!f2) perror(_PATH_PROCNET_NR_NEIGH);

    if (f1 == NULL || f2 == NULL) {
	printf(_("NET/ROM not configured in this system.\n"));
	return 1;
    }
    printf(_("Kernel NET/ROM routing table\n"));
    printf(_("Destination  Mnemonic  Quality  Neighbour  Iface\n"));
    fgets(buffer, 256, f1);
    while (fgets(buffer, 256, f1)) {
	buffer[9] = 0;
	buffer[17] = 0;
	w = atoi(buffer + 19) - 1;
	printf("%-9s    %-7s   ",
	       buffer, buffer + 10);
	qual = atoi(buffer + 24 + 15 * w);
	n = atoi(buffer + 32 + 15 * w);
	rewind(f2);
	fgets(buffer, 256, f2);
	while (fgets(buffer, 256, f2)) {
	    if (atoi(buffer) == n) {
		buffer[15] = 0;
		buffer[20] = 0;
		printf("%3d      %-9s  %s\n",
		       qual, buffer + 6, buffer + 16);
		break;
	    }
	}
    }
    fclose(f1);
    fclose(f2);
    return 0;
}

#endif				/* HAVE_AFNETROM */