xref: /freebsd/usr.bin/lsvfs/lsvfs.c (revision a316b26e50bbed7cf655fbba726ab87d8ab7599d)
1 /*
2  * lsvfs - lsit loaded VFSes
3  * Garrett A. Wollman, September 1994
4  * This file is in the public domain.
5  */
6 
7 #include <sys/types.h>
8 #include <sys/param.h>
9 #include <sys/mount.h>
10 #include <stdio.h>
11 #include <err.h>
12 
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"
16 
17 int
18 main(int argc, char **argv)
19 {
20   int rv = 0;
21   struct vfsconf *vfc;
22   argc--, argv++;
23 
24   setvfsent(1);
25 
26   printf(HDRFMT, "Filesystem", "Index", "Refs", "Flags");
27   fputs(DASHES, stdout);
28 
29   if(argc) {
30     for(; argc; argc--, argv++) {
31       vfc = getvfsbyname(*argv);
32       if(vfc) {
33         printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount,
34                vfc->vfc_flags);
35       } else {
36 	warnx("VFS %s unknown or not loaded", *argv);
37         rv++;
38       }
39     }
40   } else {
41     while(vfc = getvfsent()) {
42       printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount,
43              vfc->vfc_flags);
44     }
45   }
46 
47   endvfsent();
48   return rv;
49 }
50 
51