/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990, 1991, 1997 SMI */
/* All Rights Reserved */
#include <stdio.h>
#include <deflt.h>
#include <string.h>
#define LOCAL "/etc/default/fs"
#define REMOTE "/etc/dfs/fstypes"
/*
* This is used to figure out the default file system type if "-F FStype"
* is not specified with the file system command and no entry in the
* /etc/vfstab matches the specified special.
* If the first character of the "special" is a "/" (eg, "/dev/dsk/c0d1s2"),
* returns the default local filesystem type.
* Otherwise (eg, "server:/path/name" or "resource"), returns the default
* remote filesystem type.
*/
char *
default_fstype(char *special)
{
char *deffs = NULL;
static char buf[BUFSIZ];
FILE *fp;
if (*special == '/') {
if (defopen(LOCAL) == 0) {
deffs = defread("LOCAL=");
defopen(NULL); /* close default file */
}
} else {
if ((fp = fopen(REMOTE, "r")) != NULL) {
if (fgets(buf, sizeof (buf), fp) != NULL)
deffs = strtok(buf, " \t\n");
fclose(fp);
}
if (deffs == NULL)
deffs = "nfs";
}
return (deffs != NULL ? deffs : "ufs");
}