diff options
Diffstat (limited to 'usr.bin/file/Magdir/compress')
| -rw-r--r-- | usr.bin/file/Magdir/compress | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/usr.bin/file/Magdir/compress b/usr.bin/file/Magdir/compress new file mode 100644 index 0000000..6309c180 --- /dev/null +++ b/usr.bin/file/Magdir/compress @@ -0,0 +1,40 @@ +# +# Formats for various forms of compressed data +# Formats for "compress" proper have been moved into "compress.c", +# because it tries to uncompress it to figure out what's inside. + +# According to gzip.h, this is the correct byte order for packed data. +# +0 string \037\036 packed data + +# +# This magic number is byte-order-independent. +# +0 short 017437 old packed data + +# +# XXX - why *two* entries for "compacted data", one of which is +# byte-order independent, and one of which is byte-order dependent? +# +0 short 0x1fff compacted data +0 string \377\037 compacted data +0 short 0145405 huf output +# +# Squeeze and Crunch... +# These numbers were gleaned from the Unix versions of the programs to +# handle these formats. Note that I can only uncrunch, not crunch, and +# I didn't have a crunched file handy, so the crunch number is untested. +# Keith Waclena <keith@cerberus.uchicago.edu> +0 leshort 0x76FF squeezed data (CP/M, DOS) +0 leshort 0x76FE crunched data (CP/M, DOS) +# Freeze +0 string \037\237 Frozen file 2.1 +0 string \037\236 Frozen file 1.0 (or gzip 0.5) +# +# Standard unix compress +# +0 string \037\235 compressed data +>2 byte&0x80 >0 block compressed +>2 byte&0x1f x %d bits + +0 string \037\240 LZH compressed data |
