freebsd-dev/lib/libspl/getmntany.c
Brian Behlendorf a26baf285f Add linux libspl support
All changes needed for the libspl layer.  This includes modifications
to files directly copied from OpenSolaris and the addition of new
files needed to fill in the gaps.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2010-08-31 13:41:59 -07:00

100 lines
2.3 KiB
C

/*
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Copyright 2006 Ricardo Correia. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#include <stdio.h>
#include <string.h>
#include <mntent.h>
#include <sys/mnttab.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#define BUFSIZE (MNT_LINE_MAX + 2)
__thread char buf[BUFSIZE];
#define DIFF(xx) ((mrefp->xx != NULL) && \
(mgetp->xx == NULL || strcmp(mrefp->xx, mgetp->xx) != 0))
int
getmntany(FILE *fp, struct mnttab *mgetp, struct mnttab *mrefp)
{
int ret;
while (((ret = _sol_getmntent(fp, mgetp)) == 0) &&
(DIFF(mnt_special) || DIFF(mnt_mountp) ||
DIFF(mnt_fstype) || DIFF(mnt_mntopts)));
return ret;
}
int
_sol_getmntent(FILE *fp, struct mnttab *mgetp)
{
struct mntent mntbuf;
struct mntent *ret;
ret = getmntent_r(fp, &mntbuf, buf, BUFSIZE);
if (ret != NULL) {
mgetp->mnt_special = mntbuf.mnt_fsname;
mgetp->mnt_mountp = mntbuf.mnt_dir;
mgetp->mnt_fstype = mntbuf.mnt_type;
mgetp->mnt_mntopts = mntbuf.mnt_opts;
return 0;
}
if (feof(fp))
return -1;
return MNT_TOOLONG;
}
int
getextmntent(FILE *fp, struct extmnttab *mp, int len)
{
int ret;
struct stat64 st;
ret = _sol_getmntent(fp, (struct mnttab *) mp);
if (ret == 0) {
if (stat64(mp->mnt_mountp, &st) != 0) {
mp->mnt_major = 0;
mp->mnt_minor = 0;
return ret;
}
mp->mnt_major = major(st.st_dev);
mp->mnt_minor = minor(st.st_dev);
}
return ret;
}