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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <netdb.h>
     30 #include <unistd.h>
     31 #include <errno.h>
     32 #include <strings.h>
     33 #include "libfsmgt.h"
     34 
     35 /*
     36  * Public methods
     37  */
     38 
     39 char *sys_get_hostname(int *errp) {
     40 
     41 	char	host[MAXHOSTNAMELEN + 1];
     42 	char	*ret_val;
     43 
     44 	*errp = 0;
     45 	if (gethostname(host, sizeof (host)) == -1) {
     46 		*errp = errno;
     47 		return (NULL);
     48 	}
     49 
     50 	ret_val = strdup(host);
     51 	if (ret_val == NULL) {
     52 		*errp = errno;
     53 		return (NULL);
     54 	}
     55 
     56 	/*
     57 	 * Note: The space allocated for the return value must be freed by the
     58 	 * caller using free().
     59 	 */
     60 	return (ret_val);
     61 } /* sys_get_hostname */
     62