ips.c

来自「一个用在mips体系结构中的操作系统」· C语言 代码 · 共 36 行

/*
 * Copyright (C) 1996-1998 by the Board of Trustees
 *    of Leland Stanford Junior University.
 * 
 * This file is part of the SimOS distribution. 
 * See LICENSE file for terms of the license. 
 *
 */

/*
 * Generate list of SimOS IP addresses, given list of people and
 * number of addresses/person.
 *
 * ips <people-file> <n-per-person> <base-IP>
 *
 */

#include <stdio.h>

int main(int argc, char *argv[])
{
  FILE *people = fopen(argv[1], "r");
  int  n       = atoi(argv[2]);
  char *base   = argv[3];
  char name[100];
  int  i, k, a1, a2, a3, a4;

  sscanf(base, "%d.%d.%d.%d", &a1, &a2, &a3, &a4);
  for (k = 0; ; k += n) {
    if (fscanf(people, "%s", name) != 1) return 0;
    for (i = 0; i < n; i++)
      printf("%d.%d.%d.%d\t%s-%d\n", a1, a2, a3, a4+k+i, name, i);
    printf("\n");
  }
}