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
|
/*
* lsvfs - list loaded VFSes
* Garrett A. Wollman, September 1994
* This file is in the public domain.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#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 0x%08x %5d %s\n"
#define HDRFMT "%-32.32s %10s %5.5s %s\n"
#define DASHES "-------------------------------- " \
"---------- ----- ---------------\n"
static struct flaglist {
int flag;
const char str[32]; /* must be longer than the longest one. */
} fl[] = {
{ .flag = VFCF_STATIC, .str = "static", },
{ .flag = VFCF_NETWORK, .str = "network", },
{ .flag = VFCF_READONLY, .str = "read-only", },
{ .flag = VFCF_SYNTHETIC, .str = "synthetic", },
{ .flag = VFCF_LOOPBACK, .str = "loopback", },
{ .flag = VFCF_UNICODE, .str = "unicode", },
{ .flag = VFCF_JAIL, .str = "jail", },
{ .flag = VFCF_DELEGADMIN, .str = "delegated-administration", },
};
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", "Num", "Refs", "Flags");
fputs(DASHES, stdout);
if(argc) {
for(; argc; argc--, argv++) {
if (getvfsbyname(*argv, &vfc) == 0) {
printf(FMT, vfc.vfc_name, vfc.vfc_typenum, 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_typenum,
xvfsp[i].vfc_refcount, fmt_flags(xvfsp[i].vfc_flags));
}
free(xvfsp);
}
return rv;
}
static const char *
fmt_flags(int flags)
{
static char buf[sizeof(struct flaglist) * sizeof(fl)];
int i;
buf[0] = '\0';
for (i = 0; i < (int)nitems(fl); i++)
if (flags & fl[i].flag) {
strlcat(buf, fl[i].str, sizeof(buf));
strlcat(buf, ", ", sizeof(buf));
}
if (buf[0] != '\0')
buf[strlen(buf) - 2] = '\0';
return (buf);
}
|
