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#compdef cksum gcksum sum gsum md2 md4 md5 rmd160 sha1 sha256 sha384 sha512 sha512t256 skein256 skein512 skein1024
# This function covers mostly the BSD `cksum`, `sum`, and digest utilities. It
# also covers the GNU Coreutils `cksum` and `sum`. For the GNU digest utilities,
# see `_md5sum`. For the `shasum` Perl script, see `_shasum`.
#
# Notes:
# - We really don't do a very good job of handling option exclusivity here. In
# particular, OpenBSD treats -t and -x as exclusive of each other and most
# other options — but there are issues with other variants too (@todo)
# - Although only OpenBSD's documentation mentions it, -t can be supplied
# multiple times with all variants to run additional rounds of testing
# - All digest variants on a given platform share code, but not all variants are
# found on all platforms (e.g., Darwin only has `md5`). Some BSDs are actively
# purging legacy/insecure digest tools
# - The documentation for Dragonfly/FreeBSD `sum` says that it's 'identical to'
# `cksum`, but, as the synopsis confirms, it doesn't take any options
# - FreeBSD's -c is never useful, and Dragonfly's -b/-e are *almost* never
# useful, with multiple input files
# - NetBSD's -n isn't useful with `sum` and `cksum` unless a digest is specified
# with -a. Similarly, OpenBSD's -b isn't useful with `cksum` without -a
# - OpenBSD's -a option allows you to add a b/x suffix to each algorithm name;
# we don't handle that. Also, only one -a option can be used in conjunction
# with -c; we don't handle that either
local -a args
_pick_variant gnu='Free Soft' unix --version && {
args=(
'*: :_files'
'(: -)--help[display help information]'
'(: -)--version[display version information]'
)
[[ $service == *cksum* ]] || args+=(
'(-s --sysv)-r[use BSD algorithm (1 KiB blocks)]'
'(-r -s --sysv)'{-s,--sysv}'[use System V algorithm (512 B blocks)]'
)
_arguments -s -S : $args
return
}
[[ $OSTYPE == (darwin|dragonfly|freebsd|openbsd)* && $service == sum ]] && {
_default
return
}
[[ $OSTYPE == (darwin|dragonfly|freebsd)* && $service == cksum ]] && {
_arguments -s -S -A '-*' \
'-o[use specified historic algorithm]:historic algorithm:(1 2 3)' \
'*: :_files'
return
}
case $OSTYPE in
darwin*|dragonfly*|freebsd*|netbsd*)
args+=(
'(-n -p -r)-q[output checksums only]'
)
;| # MATCH AGAIN
darwin*|dragonfly*|freebsd*|openbsd*)
args+=(
'(-p -q)-r[reverse output format]'
)
;| # MATCH AGAIN
netbsd*|openbsd*)
args+=(
'-c[verify checksums from input files]'
)
;| # MATCH AGAIN
dragonfly*)
args+=(
'-b+[begin processing files at specified offset]:begin offset (bytes)'
'-e+[end processing files at specified offset]:end offset (bytes)'
)
;;
freebsd*)
args+=(
'-c+[verify input against specified digest string]:digest string'
)
;;
netbsd*)
args+=(
'(-p -q)-n[reverse output format]'
'(-p)-w[warn on malformed checksum files]'
)
[[ $service == (|ck)sum ]] && args+=(
'(-o)-a+[use specified algorithm]:algorithm:(crc md2 md4 md5 old1 old2 rmd160 sha1 sha256 sha384 sha512)'
'(-a)-o+[use specified historic algorithm]:historic algorithm:(1 2)'
)
;;
openbsd*)
args+=(
'-b[output in base64]'
'(-h)-C+[verify input files against checksums in specifed file]:checksum file:_files'
'(-C)-h+[output checksums to specified file]:checksum file:_files'
'(-n -r)-q[output checksum only, or suppress check success messages]'
)
[[ $service == cksum ]] && args+=(
'*-a+[use specified algorithm(s)]:algorithm:_values -s , algorithm cksum md5 rmd160 sha1 sha224 sha256 sha384 sha512/256 sha512'
)
;;
esac
args+=(
'-p[output stdin along with checksum]'
'*-s+[checksum specified string]:string'
'*-t[run built-in time trial(s)]'
'-x[run built-in tests]'
'*: :_files'
)
_arguments -s -S -A '-*' : $args
|
