summaryrefslogtreecommitdiff
path: root/util/sbase/hostname.c
blob: 2532ec8d07d297dbdf4f701b83c63b7c22d73b45 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include "util.h"

static void
usage(void)
{
	eprintf("usage: %s [name]\n", argv0);
}

int
main(int argc, char *argv[])
{
	char host[HOST_NAME_MAX + 1];

	ARGBEGIN {
	default:
		usage();
	} ARGEND

	if (!argc) {
		if (gethostname(host, sizeof(host)) < 0)
			eprintf("gethostname:");
		puts(host);
	} else if (argc == 1) {
		if (sethostname(argv[0], strlen(argv[0])) < 0)
			eprintf("sethostname:");
	} else {
		usage();
	}

	return fshut(stdout, "<stdout>");
}