rc/bin/fstype

   1 #!/bin/rc
   2 m=`{dd -if $1 -bs 2048 -skip 16 >[2]/dev/null | xd -c | sed 1q | \
   3         sed 's/.........(....................).*/\1/; s/ //g'}
   4 if(~ $"m 01CD00101){
   5         echo 9660
   6         exit
   7 }
   8 dd -if $1 -count 1 >[2]/dev/null | \
   9 awk '
  10 /^kfs/{fs["kfs"]++}
  11 /^(blocksize|daddrbits|daddrbits|indirblks|dirblks|namelen)/{p[$1]=$2}
  12 END{
  13         ca["fs", "blocksize"] = 4*1024
  14         ca["fs", "namelen"] = 28
  15         ca["fs", "dirblks"] = 6
  16         ca["fs", "indirblks"] = 2
  17         ca["fs", "daddrbits"] = 32
  18
  19         ca["fs64", "blocksize"] = 8*1024
  20         ca["fs64", "namelen"] = 56
  21         ca["fs64", "dirblks"] = 6
  22         ca["fs64", "indirblks"] = 4
  23         ca["fs64", "daddrbits"] = 64
  24
  25         ca["cwfs", "blocksize"] = 16*1024
  26         ca["cwfs", "namelen"] = 28
  27         ca["cwfs", "dirblks"] = 6
  28         ca["cwfs", "indirblks"] = 2
  29         ca["cwfs", "daddrbits"] = 32
  30
  31         ca["cwfs64", "blocksize"] = 16*1024
  32         ca["cwfs64", "namelen"] = 56
  33         ca["cwfs64", "dirblks"] = 6
  34         ca["cwfs64", "indirblks"] = 4
  35         ca["cwfs64", "daddrbits"] = 64
  36
  37         ca["cwfs64x", "blocksize"] = 16*1024
  38         ca["cwfs64x", "namelen"] = 144
  39         ca["cwfs64x", "dirblks"] = 6
  40         ca["cwfs64x", "indirblks"] = 4
  41         ca["cwfs64x", "daddrbits"] = 64
  42
  43         for(e in ca){
  44                 split(e, k, SUBSEP)
  45                 if(ca[k[1],k[2]] == p[k[2]])
  46                         fs[k[1]]++
  47         }
  48         for(i in fs)
  49                 if(fs[i] > fs[j])
  50                         j=i
  51         if(fs[j]){
  52                 print j
  53                 exit
  54         }
  55         exit 1
  56 }
  57 '