date and time created 85/05/23 14:06:03 by miriam

[unix-history] / usr / src / old / hostid / hostid.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
All rights reserved.\n";
#endif not lint

#ifndef lint
static char sccsid[] = "@(#)hostid.c    5.1 (Berkeley) %G%";
#endif not lint

#include <stdio.h>

extern  char *index();
extern  unsigned long inet_addr();

main(argc, argv)
       int argc;
       char **argv;
{
       register char *id;
       int hostid;

       if (argc < 2) {
               printf("%#x\n", gethostid());
               exit(0);
       }
       id = argv[1];

       if (index(id, '.') != NULL)
               hostid = (int) inet_addr(id);
       else {
               if (*id == '0' && (id[1] == 'x' || id[1] == 'X'))
                       id += 2;
               if (sscanf(id, "%x", &hostid) != 1) {
                       fprintf(stderr, "usage: %s [hexnum or internet address]\n", argv[0]);
                       exit(1);
               }
       }

       if (sethostid(hostid) < 0) {
               perror("sethostid");
               exit(1);
       }

       exit(0);
}