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#autoload
# This function completes POSIX capabilities for Linux.
# Many command line utilities expect different syntax to encode various kinds
# of capability names or sets, so this function tries to be as generic as
# possible. It accepts compadd options to allow variations on the exact
# generated completion matches.
#
# Usage examples:
#
# Complete full capability names:
# _capabilities -p cap_
# Sort the completion list by capability number:
# _capabilities -o nosort
# The list of Linux capabilities is taken from include/uapi/linux/capability.h
# and subject to the following pipe filter:
# grep 'define CAP' | sed -r 's/^[[:space:]]*#define[[:space:]]+CAP_//; s/[[:space:]]+[0-9]+$//' | tr '[[:upper:]]' '[[:lower:]]'
local -a caplist=(
chown
dac_override
dac_read_search
fowner
fsetid
kill
setgid
setuid
setpcap
linux_immutable
net_bind_service
net_broadcast
net_admin
net_raw
ipc_lock
ipc_owner
sys_module
sys_rawio
sys_chroot
sys_ptrace
sys_pacct
sys_admin
sys_boot
sys_nice
sys_resource
sys_time
sys_tty_config
mknod
lease
audit_write
audit_control
setfcap
mac_override
mac_admin
syslog
wake_alarm
block_suspend
audit_read
perfmon
bpf
checkpoint_restore
)
local -a expl
_description capabilities expl "Linux capability"
compadd "${(@)expl}" "$@" -a - caplist
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