1# systemd-resolve(1) completion                             -*- shell-script -*-
2# SPDX-License-Identifier: LGPL-2.1-or-later
3#
4# This file is part of systemd.
5#
6# systemd is free software; you can redistribute it and/or modify it
7# under the terms of the GNU Lesser General Public License as published by
8# the Free Software Foundation; either version 2.1 of the License, or
9# (at your option) any later version.
10#
11# systemd is distributed in the hope that it will be useful, but
12# WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14# General Public License for more details.
15#
16# You should have received a copy of the GNU Lesser General Public License
17# along with systemd; If not, see <http://www.gnu.org/licenses/>.
18
19__contains_word () {
20    local w word=$1; shift
21    for w in "$@"; do
22        [[ $w = "$word" ]] && return
23    done
24}
25
26__get_interfaces(){
27    local name
28    for name in $(cd /sys/class/net && command ls); do
29        [[ "$name" != "lo" ]] && echo "$name"
30    done
31}
32
33_systemd-resolve() {
34    local i comps
35    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
36    local -A OPTS=(
37        [STANDALONE]='-h --help --version --no-pager -4 -6
38                      --service --openpgp --tlsa --status --statistics
39                      --reset-statistics --service-address=no --service-txt=no
40                      --cname=no --search=no --legend=no --flush-caches
41                      --reset-server-features --revert'
42        [ARG]='-i --interface -p --protocol -t --type -c --class --raw
43                      --set-dns --set-domain --set-llmnr --set-mdns --set-dnssec --set-nta'
44    )
45
46    if __contains_word "$prev" ${OPTS[ARG]}; then
47        case $prev in
48            --interface|-i)
49                comps=$( __get_interfaces )
50                ;;
51            --protocol|-p|--type|-t|--class|-c)
52                comps=$( systemd-resolve --legend=no "$prev" help; echo help )
53                ;;
54            --raw)
55                comps="payload packet"
56                ;;
57            --set-dns|--set-domain|--set-nta)
58                comps=""
59                ;;
60            --set-llmnr|--set-mdns)
61                comps="yes no resolve"
62                ;;
63            --set-dnssec)
64                comps="yes no allow-downgrade"
65                ;;
66            --set-dnsovertls)
67                comps="yes no opportunistic"
68                ;;
69        esac
70        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
71        return 0
72    fi
73
74    if [[ "$cur" = -* ]] || [[ -z ${comps-} ]]; then
75        COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
76        return 0
77    fi
78}
79
80complete -F _systemd-resolve systemd-resolve
81