diff options
Diffstat (limited to 'contrib/netbsd-tests/fs/nfs/nfsservice/getmntinfo.c')
-rw-r--r-- | contrib/netbsd-tests/fs/nfs/nfsservice/getmntinfo.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/fs/nfs/nfsservice/getmntinfo.c b/contrib/netbsd-tests/fs/nfs/nfsservice/getmntinfo.c new file mode 100644 index 0000000..0c0587a --- /dev/null +++ b/contrib/netbsd-tests/fs/nfs/nfsservice/getmntinfo.c @@ -0,0 +1,85 @@ +/* $NetBSD: getmntinfo.c,v 1.1 2010/07/26 15:53:00 pooka Exp $ */ + +/* + * Copyright (c) 1989, 1993 + * 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. 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. + */ + +#include <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +#if 0 +static char sccsid[] = "@(#)getmntinfo.c 8.1 (Berkeley) 6/4/93"; +#else +__RCSID("$NetBSD: getmntinfo.c,v 1.1 2010/07/26 15:53:00 pooka Exp $"); +#endif +#endif /* LIBC_SCCS and not lint */ + +#include <sys/param.h> +#include <sys/ucred.h> +#include <sys/mount.h> + +#include <rump/rump.h> +#include <rump/rump_syscalls.h> + +#include <assert.h> +#include <errno.h> +#include <stdlib.h> + +#define getvfsstat(a,b,c) rump_sys_getvfsstat(a,b,c) + +/* + * Return information about mounted filesystems. + */ +int +getmntinfo(mntbufp, flags) + struct statvfs **mntbufp; + int flags; +{ + static struct statvfs *mntbuf; + static int mntsize; + static size_t bufsize; + + _DIAGASSERT(mntbufp != NULL); + + if (mntsize <= 0 && + (mntsize = getvfsstat(NULL, (size_t)0, MNT_NOWAIT)) == -1) + return (0); + if (bufsize > 0 && + (mntsize = getvfsstat(mntbuf, bufsize, flags)) == -1) + return (0); + while (bufsize <= mntsize * sizeof(struct statvfs)) { + if (mntbuf) + free(mntbuf); + bufsize = (mntsize + 1) * sizeof(struct statvfs); + if ((mntbuf = malloc(bufsize)) == NULL) + return (0); + if ((mntsize = getvfsstat(mntbuf, bufsize, flags)) == -1) + return (0); + } + *mntbufp = mntbuf; + return (mntsize); +} |