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lsvfs(1): Capsicumise

Browse source 
Signed-off-by: Faraz Vahedi <kfv@kfv.io>

Reviewed by:	asomers, markj
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1498
This commit is contained in:
Faraz Vahedi 2025-08-11 21:23:55 +03:30 • committed by Mariusz Zaborski
parent 09f925b57a
commit a0c709ab5a
1 changed files with 26 additions and 23 deletions
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49
usr.bin/lsvfs/lsvfs.c
View file

@ -5,10 +5,12 @@
*
*/
#include <sys/capsicum.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/sysctl.h>
#include <capsicum_helpers.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
@ -38,41 +40,42 @@ static const char *fmt_flags(int);
int
main(int argc, char **argv)
{
struct xvfsconf vfc, *xvfsp;
struct xvfsconf *xvfsp;
size_t cnt, buflen;
int rv = 0;
argc--, argv++;
if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
err(EXIT_FAILURE, "sysctl(vfs.conflist)");
if ((xvfsp = malloc(buflen)) == NULL)
errx(EXIT_FAILURE, "malloc failed");
if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0)
err(EXIT_FAILURE, "sysctl(vfs.conflist)");
cnt = buflen / sizeof(struct xvfsconf);
caph_cache_catpages();
if (caph_enter() != 0)
err(EXIT_FAILURE, "failed to enter capability mode");
printf(HDRFMT, "Filesystem", "Num", "Refs", "Flags");
fputs(DASHES, stdout);
if (argc > 0) {
for (; argc > 0; 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++;
for (size_t i = 0; i < cnt; i++) {
if (argc > 0) {
int j;
for (j = 0; j < argc; j++) {
if (strcmp(argv[j], xvfsp[i].vfc_name) == 0)
break;
}
if (j == argc)
continue;
}
} else {
if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
err(EXIT_FAILURE, "sysctl(vfs.conflist)");
if ((xvfsp = malloc(buflen)) == NULL)
errx(EXIT_FAILURE, "malloc failed");
if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0)
err(EXIT_FAILURE, "sysctl(vfs.conflist)");
cnt = buflen / sizeof(struct xvfsconf);
for (size_t 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);
printf(FMT, xvfsp[i].vfc_name, xvfsp[i].vfc_typenum,
xvfsp[i].vfc_refcount, fmt_flags(xvfsp[i].vfc_flags));
}
free(xvfsp);
return (rv);
}