luckily an easy job :)
Code:
comtype gzip
endian big
idstring FArC
get LIMIT long
get DUMMY long
for CURR_OFF = 0xc < LIMIT
get NAME string
get OFFSET long
get ZSIZE long
get SIZE long
if SIZE == ZSIZE
log NAME OFFSET SIZE
else
endian little # for gzip
clog NAME OFFSET ZSIZE SIZE
endian big
endif
savepos CURR_OFF
next