80 lines
1.6 KiB
Bash
Executable File
80 lines
1.6 KiB
Bash
Executable File
#!/cmd/rc
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rfork e
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m=`{dd -if $1 -bs 2048 -skip 16 >[2]/dev/null | xd -c | sed 1q | \
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sed 's/.........(....................).*/\1/; s/ //g'}
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if(~ $"m 01CD00101){
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echo 9660
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exit
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}
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fn fat {
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m=`{dd -if $1 -bs 1 -count 3 -skip $2 >[2]/dev/null}
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~ $"m FAT
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}
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if(fat $1 54 || fat $1 82){
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echo dos
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exit
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}
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m=`{dd -if $1 -bs 4 -count 1 >[2]/dev/null | xd | sed 's,0000000 ,,;q'}
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if(~ $"m 529ab12b){
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echo paqfs
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exit
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}
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if(~ $"m 011ce50d){
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echo hjfs
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exit
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}
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m=`{dd -if $1 -bs 16 -count 1 -skip 16 >[2]/dev/null}
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if(~ $"m 'kfs wren device'){
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echo kfs
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exit
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}
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dd -if $1 -count 1 >[2]/dev/null | \
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awk '
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/^(blocksize|daddrbits|daddrbits|indirblks|dirblks|namelen)/{p[$1]=$2}
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END{
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ca["fs", "blocksize"] = 4*1024
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ca["fs", "namelen"] = 28
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ca["fs", "dirblks"] = 6
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ca["fs", "indirblks"] = 2
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ca["fs", "daddrbits"] = 32
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ca["fs64", "blocksize"] = 8*1024
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ca["fs64", "namelen"] = 56
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ca["fs64", "dirblks"] = 6
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ca["fs64", "indirblks"] = 4
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ca["fs64", "daddrbits"] = 64
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ca["cwfs", "blocksize"] = 16*1024
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ca["cwfs", "namelen"] = 28
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ca["cwfs", "dirblks"] = 6
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ca["cwfs", "indirblks"] = 2
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ca["cwfs", "daddrbits"] = 32
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ca["cwfs64", "blocksize"] = 16*1024
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ca["cwfs64", "namelen"] = 56
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ca["cwfs64", "dirblks"] = 6
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ca["cwfs64", "indirblks"] = 4
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ca["cwfs64", "daddrbits"] = 64
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ca["cwfs64x", "blocksize"] = 16*1024
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ca["cwfs64x", "namelen"] = 144
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ca["cwfs64x", "dirblks"] = 6
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ca["cwfs64x", "indirblks"] = 4
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ca["cwfs64x", "daddrbits"] = 64
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for(e in ca){
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split(e, k, SUBSEP)
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if(ca[k[1],k[2]] == p[k[2]])
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fs[k[1]]++
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}
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for(i in fs)
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if(fs[i] > fs[j])
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j=i
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if(fs[j]){
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print j
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exit
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}
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exit 1
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}
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'
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