1#!/bin/sh
2# Validate kill operation
3
4# Copyright (C) 2015-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ kill
21
22# params required
23returns_ 1 env kill || fail=1
24returns_ 1 env kill -TERM || fail=1
25
26# Invalid combinations
27returns_ 1 env kill -l -l || fail=1
28returns_ 1 env kill -l -t || fail=1
29returns_ 1 env kill -l -s 1 || fail=1
30returns_ 1 env kill -t -s 1 || fail=1
31
32# signal sending
33returns_ 1 env kill -0 no_pid || fail=1
34env kill -0 $$ || fail=1
35env kill -s0 $$ || fail=1
36env kill -n0 $$ || fail=1 # bash compat
37env kill -CONT $$ || fail=1
38env kill -Cont $$ || fail=1
39returns_ 1 env kill -cont $$ || fail=1
40env kill -0 -1 || fail=1 # to group
41
42# table listing
43env kill -l || fail=1
44env kill -t || fail=1
45env kill -L || fail=1 # bash compat
46env kill -t TERM HUP || fail=1
47
48# Verify (multi) name to signal number and vice versa
49SIGTERM=$(env kill -l HUP TERM | tail -n1) || fail=1
50test $(env kill -l "$SIGTERM") = TERM || fail=1
51
52# Verify we only consider the lower "signal" bits,
53# to support ksh which just adds 256 to the signal value
54STD_TERM_STATUS=$(expr "$SIGTERM" + 128)
55KSH_TERM_STATUS=$(expr "$SIGTERM" + 256)
56test $(env kill -l $STD_TERM_STATUS $KSH_TERM_STATUS | uniq) = TERM || fail=1
57
58# Verify invalid signal spec is diagnosed
59returns_ 1 env kill -l -1 || fail=1
60returns_ 1 env kill -l -1 0 || fail=1
61returns_ 1 env kill -l INVALID TERM || fail=1
62
63Exit $fail
64