#ifndef lint static char sccsid[] = "@(#)hostid.c 4.2 (Berkeley) 8/11/83"; #endif main(argc, argv) int argc; char **argv; { if (argc > 1) { int hostid; sscanf(argv[1], "%x", &hostid); if (sethostid(hostid) < 0) perror("hostid"); } else printf("%x\n", gethostid()); }