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Annotation of researchv10no/cmd/ether/arpconfig.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  *            A R P  C O N F I G
                      3:  *
                      4:  * Ethernet address resolution setup procedure.
                      5:  * For use with the Chaosnet Line Discipline and/or TCP/IP.
                      6:  * Invoked from 'netconfig' with fd 0 open to an ethernet channel.
                      7:  *
                      8:  *
                      9:  * (c) Copyright 1985  Nirvonics, Inc.
                     10:  *
                     11:  * Written by Kurt Gollhardt
                     12:  * Last update Thu Mar 14 13:24:01 1985
                     13:  *
                     14:  * This software is the property of Nirvonics, Inc.
                     15:  * All rights reserved.
                     16:  *
                     17:  */
                     18: 
                     19: #include <stdio.h>
                     20: #include <sys/ioctl.h>
                     21: #include <sys/types.h>
                     22: #include <sys/order.h>
                     23: #include <sys/ethernet.h>
                     24: 
                     25: extern int arp_ld;
                     26: int arp_type;
                     27: 
                     28: 
                     29: main(ac,av)
                     30:      char **av;
                     31: {
                     32:      unsigned char  en_addr[6];
                     33:      int       i;
                     34: 
                     35:      if (ioctl(0, FIOPUSHLD, &arp_ld) < 0) {
                     36:          fprintf(stderr, "Can't push arp line discipline\n");
                     37:          exit(1);
                     38:      }
                     39:      arp_type = hfirst_short(ETHERPUP_ARPTYPE);
                     40:      if (ioctl(0, ENIOTYPE, &arp_type) < 0) {
                     41:          fprintf(stderr, "Can't set arp type\n");
                     42:          exit(1);
                     43:      }
                     44: 
                     45:      if (ioctl(0, ENIOADDR, en_addr) < 0) {
                     46:          fprintf(stderr, "Can't get ethernet address\n");
                     47:          exit(1);
                     48:      }
                     49: 
                     50:      printf("%s: running on ethernet", av[0]);
                     51:      for (i = 0; i < 6; i++)
                     52:          printf(" %02x", en_addr[i]);
                     53:      putchar('\n');
                     54:      fflush(stdout);
                     55: 
                     56:      pause();
                     57: }

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