lsvfs.c (1ba4a712dde6e6c613fc411a96958b4ade67de4c) lsvfs.c (2a136300aceca6ec66907258618cf7fdae2a1025)
1/*
1/*
2 * lsvfs - list loaded VFSes
2 * lsvfs - lsit loaded VFSes
3 * Garrett A. Wollman, September 1994
4 * This file is in the public domain.
3 * Garrett A. Wollman, September 1994
4 * This file is in the public domain.
5 *
6 */
7
5 */
6
8#include <sys/cdefs.h>
9__FBSDID("$FreeBSD$");
10
7#include <sys/types.h>
11#include <sys/param.h>
12#include <sys/mount.h>
8#include <sys/param.h>
9#include <sys/mount.h>
13#include <sys/sysctl.h>
14
15#include <err.h>
16#include <stdio.h>
10#include <stdio.h>
17#include <stdlib.h>
18#include <string.h>
11#include <err.h>
19
12
20#define FMT "%-32.32s %5d %s\n"
21#define HDRFMT "%-32.32s %5.5s %s\n"
22#define DASHES "-------------------------------- ----- ---------------\n"
13#define FMT "%-32.32s %5d %5d %5d\n"
14#define HDRFMT "%-32.32s %5.5s %5.5s %5.5s\n"
15#define DASHES "-------------------------------- ---- ---- ----\n"
23
16
24static const char *fmt_flags(int);
25
26int
27main(int argc, char **argv)
28{
17int
18main(int argc, char **argv)
19{
29 int cnt, rv = 0, i;
30 struct xvfsconf vfc, *xvfsp;
31 size_t buflen;
20 int rv = 0;
21 struct vfsconf *vfc;
32 argc--, argv++;
33
22 argc--, argv++;
23
34 printf(HDRFMT, "Filesystem", "Refs", "Flags");
24 setvfsent(1);
25
26 printf(HDRFMT, "Filesystem", "Index", "Refs", "Flags");
35 fputs(DASHES, stdout);
36
37 if(argc) {
38 for(; argc; argc--, argv++) {
27 fputs(DASHES, stdout);
28
29 if(argc) {
30 for(; argc; argc--, argv++) {
39 if (getvfsbyname(*argv, &vfc) == 0) {
40 printf(FMT, vfc.vfc_name, vfc.vfc_refcount, fmt_flags(vfc.vfc_flags));
31 vfc = getvfsbyname(*argv);
32 if(vfc) {
33 printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount,
34 vfc->vfc_flags);
41 } else {
35 } else {
42 warnx("VFS %s unknown or not loaded", *argv);
36 warnx("VFS %s unknown or not loaded", name);
43 rv++;
44 }
45 }
46 } else {
37 rv++;
38 }
39 }
40 } else {
47 if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
48 err(1, "sysctl(vfs.conflist)");
49 xvfsp = malloc(buflen);
50 if (xvfsp == NULL)
51 errx(1, "malloc failed");
52 if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0)
53 err(1, "sysctl(vfs.conflist)");
54 cnt = buflen / sizeof(struct xvfsconf);
55
56 for (i = 0; i < cnt; i++) {
57 printf(FMT, xvfsp[i].vfc_name, xvfsp[i].vfc_refcount,
58 fmt_flags(xvfsp[i].vfc_flags));
41 while(vfc = getvfsent()) {
42 printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount,
43 vfc->vfc_flags);
59 }
44 }
60 free(xvfsp);
61 }
62
45 }
46
47 endvfsent();
63 return rv;
64}
65
48 return rv;
49}
50
66static const char *
67fmt_flags(int flags)
68{
69 /*
70 * NB: if you add new flags, don't forget to add them here vvvvvv too.
71 */
72 static char buf[sizeof
73 "static, network, read-only, synthetic, loopback, unicode, jail"];
74 size_t len;
75
76 buf[0] = '\0';
77
78 if(flags & VFCF_STATIC)
79 strlcat(buf, "static, ", sizeof(buf));
80 if(flags & VFCF_NETWORK)
81 strlcat(buf, "network, ", sizeof(buf));
82 if(flags & VFCF_READONLY)
83 strlcat(buf, "read-only, ", sizeof(buf));
84 if(flags & VFCF_SYNTHETIC)
85 strlcat(buf, "synthetic, ", sizeof(buf));
86 if(flags & VFCF_LOOPBACK)
87 strlcat(buf, "loopback, ", sizeof(buf));
88 if(flags & VFCF_UNICODE)
89 strlcat(buf, "unicode, ", sizeof(buf));
90 if(flags & VFCF_JAIL)
91 strlcat(buf, "jail, ", sizeof(buf));
92 if(flags & VFCF_DELEGADMIN)
93 strlcat(buf, "delegated-administration, ", sizeof(buf));
94 len = strlen(buf);
95 if (len > 2 && buf[len - 2] == ',')
96 buf[len - 2] = '\0';
97
98 return buf;
99}