static char *sccsid = "@(#)hostname.c 1.2 1.2 83/01/02"; /* * hostname -- get (or set hostname) */ #include <stdio.h> char hostname[32]; extern int errno; main(argc,argv) char *argv[]; { argc--; argv++; if (argc) { if (sethostname(*argv,strlen(*argv))) perror("sethostname"); } else { gethostname(hostname,sizeof(hostname)); printf("%s\n",hostname); } exit(errno); }