/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/types32.h>
#include <sharefs/share.h>
#include "sharetab.h"
static share_t *sharedup();
static void sharefree();
/*
* Get an entry from the share table.
* There should be at least 4 fields:
*
* pathname resource fstype options [ description ]
*
* A fifth field (description) is optional.
*
* Returns:
* > 1 valid entry
* = 0 end of file
* < 0 error
*/
int
getshare(FILE *fd, share_t **shp)
{
static char *line = NULL;
static share_t *sh = NULL;
register char *p;
char *w = " \t";
if (line == NULL) {
line = (char *)malloc(BUFSIZ+1);
if (line == NULL)
return (-1);
}
if (sh == NULL) {
sh = (share_t *)malloc(sizeof (*sh));
if (sh == NULL)
return (-1);
}
p = fgets(line, BUFSIZ, fd);
if (p == NULL)
return (0);
line[strlen(line) - 1] = '\0';
sh->sh_path = strtok(p, w);
if (sh->sh_path == NULL)
return (-1);
sh->sh_res = strtok(NULL, w);
if (sh->sh_res == NULL)
return (-1);
sh->sh_fstype = strtok(NULL, w);
if (sh->sh_fstype == NULL)
return (-1);
sh->sh_opts = strtok(NULL, w);
if (sh->sh_opts == NULL)
return (-1);
sh->sh_descr = strtok(NULL, "");
if (sh->sh_descr == NULL)
sh->sh_descr = "";
*shp = sh;
return (1);
}
static share_t *
sharedup(share_t *sh)
{
share_t *nsh;
nsh = (share_t *)calloc(1, sizeof (*nsh));
if (nsh == NULL)
return (NULL);
nsh->sh_path = strdup(sh->sh_path);
if (nsh->sh_path == NULL)
goto alloc_failed;
nsh->sh_res = strdup(sh->sh_res);
if (nsh->sh_res == NULL)
goto alloc_failed;
nsh->sh_fstype = strdup(sh->sh_fstype);
if (nsh->sh_fstype == NULL)
goto alloc_failed;
nsh->sh_opts = strdup(sh->sh_opts);
if (nsh->sh_opts == NULL)
goto alloc_failed;
nsh->sh_descr = strdup(sh->sh_descr);
if (nsh->sh_descr == NULL)
goto alloc_failed;
return (nsh);
alloc_failed:
sharefree(nsh);
return (NULL);
}
static void
sharefree(share_t *sh)
{
if (sh == NULL)
return;
if (sh->sh_path != NULL)
free(sh->sh_path);
if (sh->sh_res != NULL)
free(sh->sh_res);
if (sh->sh_fstype != NULL)
free(sh->sh_fstype);
if (sh->sh_opts != NULL)
free(sh->sh_opts);
if (sh->sh_descr != NULL)
free(sh->sh_descr);
free(sh);
}
/*
* Return the value after "=" for option "opt"
* in option string "optlist".
*/
char *
getshareopt(char *optlist, char *opt)
{
char *p, *pe;
char *b;
static char *bb;
if (bb)
free(bb);
b = bb = strdup(optlist);
if (b == NULL)
return (NULL);
while (p = strtok(b, ",")) {
b = NULL;
if (pe = strchr(p, '=')) {
*pe = '\0';
if (strcmp(opt, p) == 0)
return (pe + 1);
}
if (strcmp(opt, p) == 0)
return ("");
}
return (NULL);
}