1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* lsvfs - list loaded VFSes
* Garrett A. Wollman, September 1994
* This file is in the public domain.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/lsvfs/lsvfs.c,v 1.20.2.1.6.1 2010/12/21 17:09:25 kensmith Exp $");
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/sysctl.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.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);
int
main(int argc, char **argv)
{
int cnt, rv = 0, i;
struct xvfsconf vfc, *xvfsp;
size_t buflen;
argc--, argv++;
printf(HDRFMT, "Filesystem", "Refs", "Flags");
fputs(DASHES, stdout);
if(argc) {
for(; argc; argc--, argv++) {
if (getvfsbyname(*argv, &vfc) == 0) {
printf(FMT, vfc.vfc_name, vfc.vfc_refcount, fmt_flags(vfc.vfc_flags));
} else {
warnx("VFS %s unknown or not loaded", *argv);
rv++;
}
}
} else {
if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
err(1, "sysctl(vfs.conflist)");
xvfsp = malloc(buflen);
if (xvfsp == NULL)
errx(1, "malloc failed");
if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0)
err(1, "sysctl(vfs.conflist)");
cnt = buflen / sizeof(struct xvfsconf);
for (i = 0; i < cnt; i++) {
printf(FMT, xvfsp[i].vfc_name, xvfsp[i].vfc_refcount,
fmt_flags(xvfsp[i].vfc_flags));
}
free(xvfsp);
}
return rv;
}
static const char *
fmt_flags(int flags)
{
/*
* NB: if you add new flags, don't forget to add them here vvvvvv too.
*/
static char buf[sizeof
"static, network, read-only, synthetic, loopback, unicode, jail"];
size_t len;
buf[0] = '\0';
if(flags & VFCF_STATIC)
strlcat(buf, "static, ", sizeof(buf));
if(flags & VFCF_NETWORK)
strlcat(buf, "network, ", sizeof(buf));
if(flags & VFCF_READONLY)
strlcat(buf, "read-only, ", sizeof(buf));
if(flags & VFCF_SYNTHETIC)
strlcat(buf, "synthetic, ", sizeof(buf));
if(flags & VFCF_LOOPBACK)
strlcat(buf, "loopback, ", sizeof(buf));
if(flags & VFCF_UNICODE)
strlcat(buf, "unicode, ", sizeof(buf));
if(flags & VFCF_JAIL)
strlcat(buf, "jail, ", sizeof(buf));
if(flags & VFCF_DELEGADMIN)
strlcat(buf, "delegated-administration, ", sizeof(buf));
len = strlen(buf);
if (len > 2 && buf[len - 2] == ',')
buf[len - 2] = '\0';
return buf;
}
|
