gethostname.c revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
/*
* Copyright (C) 2014-2016 Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <config.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <isc/print.h>
#include <isc/util.h>
#ifndef MAXHOSTNAMELEN
#ifdef HOST_NAME_MAX
#define MAXHOSTNAMELEN HOST_NAME_MAX
#else
#define MAXHOSTNAMELEN 256
#endif
#endif
int
main(int argc, char **argv) {
char hostname[MAXHOSTNAMELEN];
int n;
UNUSED(argc);
UNUSED(argv);
n = gethostname(hostname, sizeof(hostname));
if (n == -1) {
perror("gethostname");
exit(1);
}
fprintf(stdout, "%s\n", hostname);
return (0);
}