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/*
* 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 %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"];
int comma = 0;
buf[0] = '\0';
if(flags & VFCF_STATIC) {
if(comma++) strcat(buf, ", ");
strcat(buf, "static");
}
if(flags & VFCF_NETWORK) {
if(comma++) strcat(buf, ", ");
strcat(buf, "network");
}
if(flags & VFCF_READONLY) {
if(comma++) strcat(buf, ", ");
strcat(buf, "read-only");
}
if(flags & VFCF_SYNTHETIC) {
if(comma++) strcat(buf, ", ");
strcat(buf, "synthetic");
}
if(flags & VFCF_LOOPBACK) {
if(comma++) strcat(buf, ", ");
strcat(buf, "loopback");
}
if(flags & VFCF_UNICODE) {
if(comma++) strcat(buf, ", ");
strcat(buf, "unicode");
}
if(flags & VFCF_JAIL) {
if(comma++) strcat(buf, ", ");
strcat(buf, "jail");
}
return buf;
}
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