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