domainname.c revision 1.3 
1#ifndef lint
2static char rcsid[] = "$Id: domainname.c,v 1.3 1993/09/10 01:24:46 jtc Exp $";
3#endif /* not lint */
4
5#include <stdio.h>
6#include <stdlib.h>
7#include <string.h>
8#include <unistd.h>
9#include <sys/param.h>
10
11static void usage __P((void));
12
13main(argc, argv)
14	int argc;
15	char **argv;
16{
17	char dom[MAXHOSTNAMELEN];
18
19	if( argc>2 ) {
20		usage ();
21		/* NOTREACHED */
22	}
23
24	if( argc==2 ) {
25		if( setdomainname(argv[1], strlen(argv[1])+1) == -1) {
26			perror("setdomainname");
27			exit(1);
28		}
29	} else {
30		if( getdomainname(dom, sizeof(dom)) == -1) {
31			perror("getdomainname");
32			exit(1);
33		}
34		printf("%s\n", dom);
35	}
36
37	exit(0);
38}
39
40static void
41usage ()
42{
43	(void)fprintf(stderr, "usage: domainname [name-of-domain]\n");
44	exit(1);
45}
46