75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 1989 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char sccsid[] = "@(#)getmntinfo.c 6.4 (Berkeley) 2/23/91";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#define _KERNEL
|
|
#include "ixemul.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/mount.h>
|
|
#include <stdlib.h>
|
|
|
|
#define mntbuf (u.u_mntbuf)
|
|
#define mntsize (u.u_mntsize)
|
|
#define bufsize (u.u_bufsize)
|
|
|
|
/*
|
|
* Return information about mounted filesystems.
|
|
*/
|
|
int
|
|
getmntinfo(mntbufp, flags)
|
|
struct statfs **mntbufp;
|
|
int flags;
|
|
{
|
|
usetup;
|
|
|
|
if (mntsize <= 0 && (mntsize = syscall(SYS_getfsstat, 0, 0, MNT_NOWAIT)) < 0)
|
|
return (0);
|
|
if (bufsize > 0 && (mntsize = syscall(SYS_getfsstat, mntbuf, bufsize, flags)) < 0)
|
|
return (0);
|
|
while (bufsize <= mntsize * sizeof(struct statfs)) {
|
|
if (mntbuf)
|
|
free(mntbuf);
|
|
bufsize = (mntsize + 1) * sizeof(struct statfs);
|
|
if ((mntbuf = (struct statfs *)malloc(bufsize)) == 0)
|
|
return (0);
|
|
if ((mntsize = syscall(SYS_getfsstat, mntbuf, bufsize, flags)) < 0)
|
|
return (0);
|
|
}
|
|
*mntbufp = mntbuf;
|
|
return (mntsize);
|
|
}
|