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/* $NetBSD: compat___getmntinfo13.c,v 1.1 2019/09/22 22:59:38 christos Exp $ */
/*-
* Copyright (c) 2019 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: compat___getmntinfo13.c,v 1.1 2019/09/22 22:59:38 christos Exp $");
#endif /* LIBC_SCCS and not lint */
#define __LIBC12_SOURCE__
#include "namespace.h"
#include <sys/types.h>
#include <sys/param.h>
#include <assert.h>
#include <compat/sys/statvfs.h>
#include <string.h>
#include <stdlib.h>
__warn_references(__getmntinfo13,
"warning: reference to obsolete __getmntinfo13(); use statvfs()")
__strong_alias(__getmntinfo13, __compat___getmntinfo13)
/*
* Return information about mounted filesystems.
*/
int
__compat___getmntinfo13(struct statvfs90 **mntbufp, int flags)
{
static struct statvfs90 *mntbuf;
static int mntsize;
static size_t bufsize;
_DIAGASSERT(mntbufp != NULL);
if (mntsize <= 0 &&
(mntsize = __compat_getvfsstat(NULL, 0L, MNT_NOWAIT)) == -1)
return (0);
if (bufsize > 0 &&
(mntsize = __compat_getvfsstat(mntbuf, bufsize, flags)) == -1)
return (0);
while (bufsize <= mntsize * sizeof(struct statvfs90)) {
if (mntbuf)
free(mntbuf);
bufsize = (mntsize + 1) * sizeof(struct statvfs90);
if ((mntbuf = malloc(bufsize)) == NULL)
return (0);
if ((mntsize = __compat_getvfsstat(mntbuf, bufsize,
flags)) == -1)
return (0);
}
*mntbufp = mntbuf;
return (mntsize);
}
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