1 /* 2 * lsvfs - lsit loaded VFSes 3 * Garrett A. Wollman, September 1994 4 * This file is in the public domain. 5 * 6 * $Id: lsvfs.c,v 1.7 1997/02/22 19:55:59 peter Exp $ 7 */ 8 9 #include <sys/param.h> 10 #include <sys/mount.h> 11 12 #include <err.h> 13 #include <stdio.h> 14 #include <string.h> 15 16 #define FMT "%-32.32s %5d %5d %s\n" 17 #define HDRFMT "%-32.32s %5.5s %5.5s %s\n" 18 #define DASHES "-------------------------------- ----- ----- ---------------\n" 19 20 static const char *fmt_flags(int); 21 22 int 23 main(int argc, char **argv) 24 { 25 int rv = 0; 26 struct vfsconf *vfc; 27 argc--, argv++; 28 29 setvfsent(1); 30 31 printf(HDRFMT, "Filesystem", "Index", "Refs", "Flags"); 32 fputs(DASHES, stdout); 33 34 if(argc) { 35 for(; argc; argc--, argv++) { 36 vfc = getvfsbyname(*argv); 37 if(vfc) { 38 printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount, 39 fmt_flags(vfc->vfc_flags)); 40 } else { 41 warnx("VFS %s unknown or not loaded", *argv); 42 rv++; 43 } 44 } 45 } else { 46 while(vfc = getvfsent()) { 47 printf(FMT, vfc->vfc_name, vfc->vfc_index, vfc->vfc_refcount, 48 fmt_flags(vfc->vfc_flags)); 49 } 50 } 51 52 endvfsent(); 53 return rv; 54 } 55 56 static const char * 57 fmt_flags(int flags) 58 { 59 /* 60 * NB: if you add new flags, don't forget to add them here vvvvvv too. 61 */ 62 static char buf[sizeof 63 "static, network, read-only, synthetic, loopback, unicode"]; 64 int comma = 0; 65 66 buf[0] = '\0'; 67 68 if(flags & VFCF_STATIC) { 69 if(comma++) strcat(buf, ", "); 70 strcat(buf, "static"); 71 } 72 73 if(flags & VFCF_NETWORK) { 74 if(comma++) strcat(buf, ", "); 75 strcat(buf, "network"); 76 } 77 78 if(flags & VFCF_READONLY) { 79 if(comma++) strcat(buf, ", "); 80 strcat(buf, "read-only"); 81 } 82 83 if(flags & VFCF_SYNTHETIC) { 84 if(comma++) strcat(buf, ", "); 85 strcat(buf, "synthetic"); 86 } 87 88 if(flags & VFCF_LOOPBACK) { 89 if(comma++) strcat(buf, ", "); 90 strcat(buf, "loopback"); 91 } 92 93 if(flags & VFCF_UNICODE) { 94 if(comma++) strcat(buf, ", "); 95 strcat(buf, "unicode"); 96 } 97 98 return buf; 99 } 100