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Code Issues Releases Activity

- Add file system type number (vfc_typenum) in the list. This is useful

Browse Source 
for debugging when changing vfs.typenumhash configuration.
- Refactor fmt_flags().

MFC after:	1 week
This commit is contained in:
Hiroki Sato 2013-06-09 16:33:32 +00:00
parent 641cb9ccd9
commit c0f826e652
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251580
2 changed files with 38 additions and 37 deletions
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5
usr.bin/lsvfs/lsvfs.1
View File

@ -2,7 +2,7 @@
.\" Garrett A. Wollman, September 1994
.\" This file is in the public domain.
.\"
.Dd March 16, 1995
.Dd June 9, 2013
.Dt LSVFS 1
.Os
.Sh NAME
@ -36,6 +36,8 @@ and the
.Fl t
option to
.Xr mount 8
.It Num
the filesystem type number.
.It Refs
the number of references to this VFS; i.e., the number of currently
mounted file systems of this type
@ -44,6 +46,7 @@ flag bits.
.El
.Sh SEE ALSO
.Xr mount 2 ,
.Xr getvfsbyname 3 ,
.Xr mount 8
.Sh HISTORY
A

70
usr.bin/lsvfs/lsvfs.c
View File

@ -17,9 +17,24 @@ __FBSDID("$FreeBSD$");
#include <stdlib.h>
#include <string.h>
#define FMT "%-32.32s %5d %s\n"
#define HDRFMT "%-32.32s %5.5s %s\n"
#define DASHES "-------------------------------- ----- ---------------\n"
#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);
@ -31,13 +46,14 @@ main(int argc, char **argv)
size_t buflen;
argc--, argv++;
printf(HDRFMT, "Filesystem", "Refs", "Flags");
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_refcount, fmt_flags(vfc.vfc_flags));
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++;
@ -54,8 +70,8 @@ main(int argc, char **argv)
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));
printf(FMT, xvfsp[i].vfc_name, xvfsp[i].vfc_typenum,
xvfsp[i].vfc_refcount, fmt_flags(xvfsp[i].vfc_flags));
}
free(xvfsp);
}
@ -66,34 +82,16 @@ main(int argc, char **argv)
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;
static char buf[sizeof(struct flaglist) * sizeof(fl)];
int i;
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;
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);
}