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|
#compdef su
local -A opt_args
local -a args context state line expl
local first='(-)${norm}:user name:_users'
integer norm=1 strip
local shell usr
(( $words[(i)-(l|-login)] < CURRENT )) || args=( '-[use a login shell]' )
case $OSTYPE in
linux*)
# Some of these options only apply to util-linux, not shadow-utils
args=( -S $args
'(-c --command --session-command *)'{-c+,--command=}'[pass command to shell]:command string:_cmdstring'
"(-c --command *)--session-command=[pass command to shell and don't create a new session]:command string:_cmdstring"
'(--fast -f)'{-f,--fast}'[pass -f to shell]'
'(-l --login -m -p --preserve-environment)'{-l,--login}'[use a login shell]'
'(-l --login -m -p --preserve-environment)'{-m,-p,--preserve-environment}"[don't reset environment]"
'(-s --shell)'{-s+,--shell=}'[run the specified shell]:shell:->shells'
'(-)--help[display help information]'
'(-)--version[display version information]'
)
(( $#_comp_priv_prefix || EUID == 0 )) && args+=(
'(-g --group)'{-g+,--group=}'[specify primary group]:group:_groups'
\*{-G+,--supp-group=}'[specify supplemental group]:group:_groups'
)
first="(--help --version)${first#???}"
;;
*bsd*|darwin*|dragonfly*)
args+=(
'-f[if the invoked shell is csh, prevent it from reading .cshrc]'
'(-m)-l[use a login shell]'
"(-l)-m[don't reset environment]"
)
;|
*bsd*|dragonfly*)
args+=(
'-c+[use settings from specified login class]:class:_login_classes'
)
;|
freebsd*) args+=( '-s[set the MAC label]' ) ;;
openbsd*)
args+=(
# See login.conf(5)
'(-K)-a+[specify authentication type]:authentication type:(
activ chpass crypto lchpass passwd radius reject skey snk token yubikey
)'
'(-a)-K[shorthand for -a passwd]'
'-s+[run the specified shell]:shell:->shells'
'-L[loop until login succeeds]'
)
;;
netbsd*)
args+=(
'-d[use a login shell but retain current directory]'
"-K[don't use Kerberos]"
)
;;
esac
if (( $words[(i)-] < CURRENT )); then
args=( ${args:#*-(-login|l|)\[*} '1:-' )
norm=2
fi
# This is set so that _command_names will understand that we're completing for
# a privileged command, but _call_program won't actually prepend anything to
# commands if gain-privileges is enabled (which would be undesirable here since
# su always prompts for a password). We delay setting it until this point so it
# doesn't cause issues for the check above
local -a _comp_priv_prefix=( '' )
_arguments $args ${(e)first} "*:shell arguments:= ->rest" && return
usr=${${(Q)line[norm]}/--/root}
# OpenBSD supports appending a log-in method to the user name, as in usr:radius
[[ $OSTYPE == openbsd* ]] && usr=${usr%:*}
# Normal users generally don't appear in passwd on macOS; try the Directory
# Service first
if [[ $OSTYPE == darwin* ]] && (( $+commands[dscl] )); then
shell=${"$(
_call_program shells dscl . -read /Users/${(q)usr} UserShell
)"#UserShell: }
fi
if [[ -n $shell ]]; then
: # Found above
elif (( ${#${(@M)args:#*-s[+\[]*:*}} && $#opt_args[(i)-(s|-shell)] )); then
shell=${(v)opt_args[(i)-(s|-shell)]}
elif (( ${+commands[getent]} )); then
shell="${$(_call_program shells getent passwd ${(q)usr})##*:}"
else
shell="${${(M@)${(@f)$(</etc/passwd)}:#${usr}:*}##*:}"
fi
case $state in
shells)
_wanted -C $context shells expl shell compadd ${(f)^"$(</etc/shells)"}(N)
return
;;
rest)
if [[ -z $shell || $shell = */(nologin|false) ]]; then
_message "-s option required, $usr has no shell"
else
(( strip = $#words - $#line + norm ))
(( CURRENT -= strip - 1 ))
words[2,strip]=()
_dispatch ${service}:${context} $shell $shell:t -default-
return
fi
;;
esac
return 1
|
