blob: 8f401168bc3ad52c6ca39f8cfcf651aa4c586b9e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/bin/sh
action=$(echo ${1:-status} | tr '[a-z]' '[A-Z]')
file=${2:-/etc/nsswitch.conf}
# compute activated value
activated=false
if grep -q '^hosts:.*\<localuser\>' "${file}" 2>/dev/null; then
activated=true
fi
# compute activate value
case ${action} in
ON|YES|TRUE|1) activate=true;;
OFF|NO|FALSE|0) activate=false;;
QUERY|TEST|CHECK|STATUS) ${activated} && echo ON || echo OFF; exit 0;;
*) echo "Bad command: $1" >&2; exit 1;;
esac
# exit if already set as desired
[ "${activate}" = "${activated}" ] && exit 0
# process
if ${activate}; then
sedcmd='/^hosts:/s/hosts:[ \t]*/&localuser /'
else
sedcmd='/^hosts:/s/localuser *//'
fi
if ! cp "${file}" "${file}~"; then
echo "Can't save file ${file} to ${file}~" >&2
exit 1
fi
if ! grep -q '^hosts:' "${file}"; then
if ! echo >> "${file}" || ! echo "hosts: " >> "${file}"; then
echo "Can't add host: to ${file}" >&2
cp "${file}~" "${file}" && rm "${file}~"
exit 1
fi
fi
if ! sed -i "${sedcmd}" "${file}"; then
echo "Can't process ${file}" >&2
cp "${file}~" "${file}" && rm "${file}~"
exit 1
fi
|
