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/*
* Copyright (c) 1998-2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <sys/mount.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#define FMT "%-32.32s %5d %s\n"
#define HDRFMT "%-32.32s %5.5s %s\n"
#define DASHES "-------------------------------- ----- ---------------\n"
static const char *fmt_flags(int flags);
int
main(int argc, char *argv[])
{
struct vfsconf vfc;
int mib[4], max, x;
size_t len;
printf(HDRFMT, "Filesystem", "Refs", "Flags");
fputs(DASHES, stdout);
if (argc > 1) {
for (x = 1; x < argc; x++)
if (getvfsbyname(argv[x], &vfc) == 0)
printf(FMT, vfc.vfc_name, vfc.vfc_refcount,
fmt_flags(vfc.vfc_flags));
else
warnx("VFS %s unknown or not loaded", argv[x]);
} else {
mib[0] = CTL_VFS;
mib[1] = VFS_GENERIC;
mib[2] = VFS_MAXTYPENUM;
len = sizeof(int);
if (sysctl(mib, 3, &max, &len, NULL, 0) != 0)
errx(1, "sysctl");
mib[2] = VFS_CONF;
len = sizeof(vfc);
for (x = 0; x < max; x++) {
mib[3] = x;
if (sysctl(mib, 4, &vfc, &len, NULL, 0) != 0) {
if (errno != ENOTSUP)
errx(1, "sysctl");
} else {
printf(FMT, vfc.vfc_name, vfc.vfc_refcount,
fmt_flags(vfc.vfc_flags));
}
}
}
return 0;
}
static const char *
fmt_flags(int flags)
{
static char buf[sizeof "local, dovolfs"];
int comma = 0;
buf[0] = '\0';
if(flags & MNT_LOCAL) {
if(comma++) strcat(buf, ", ");
strcat(buf, "local");
}
if(flags & MNT_DOVOLFS) {
if(comma++) strcat(buf, ", ");
strcat(buf, "dovolfs");
}
return buf;
}
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