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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#!/sbin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2009 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
# All Rights Reserved
#
# Copyright 2017, OmniTI Computer Consulting, Inc. All rights reserved.
#
# Sequence performed to change the init state of a machine. Only allows
# transitions to states 0,1,5,6,s,S (i.e.: down or administrative states).
# This procedure checks to see if you are permitted and allows an
# interactive shutdown. The actual change of state, killing of
# processes and such are performed by the new init state, say 0,
# and its /sbin/rc0.
usage() {
echo "Usage: $0 [ -y ] [ -g<grace> ] [ -i<initstate> ] [ message ]"
exit 1
}
notify() {
/usr/sbin/wall -Za <<-!
$*
!
# We used to do rwall here if showmounts had any output, but
# rwall is a potential security hole, and it could block this, so
# we don't bother with it anymore.
}
nologin=/etc/nologin
# Set the PATH so that to guarentee behavior of shell built in commands
# (such as echo).
PATH=/usr/sbin:/usr/bin:/sbin
# Initial sanity checks:
# Make sure /usr is mounted
# Check the user id (only root can run shutdown)
if [ ! -d /usr/bin ]
then
echo "$0: /usr is not mounted. Mount /usr or use init to shutdown."
exit 1
fi
if [ -x /usr/bin/id ]
then
eval `/usr/bin/id | /usr/bin/sed 's/[^a-z0-9=].*//'`
if [ "${uid:=0}" -ne 0 ]
then
echo "$0: Only root can run $0"
exit 2
fi
else
echo "$0: can't check user id."
exit 2
fi
# Get options (defaults immediately below):
grace=60
askconfirmation=yes
initstate=s
while getopts g:i:y? c
do
case $c in
g)
case $OPTARG in
*[!0-9]* )
echo "$0: -g requires a numeric option"
usage
;;
[0-9]* )
grace=$OPTARG
;;
esac
;;
i)
case $OPTARG in
[Ss0156])
initstate=$OPTARG
;;
[234abcqQ])
echo "$0: Initstate $OPTARG is not for system shutdown"
exit 1
;;
*)
echo "$0: $OPTARG is not a valid initstate"
usage
;;
esac
;;
y)
askconfirmation=
;;
\?) usage
;;
esac
done
shift $(($OPTIND - 1))
echo '\nShutdown started. \c'
/usr/bin/date
echo
NODENAME=`uname -n`
cd /
trap "rm $nologin >/dev/null 2>&1 ;exit 1" 1 2 15
# If other users are on the system (and any grace period is given), warn them.
for i in 7200 3600 1800 1200 600 300 120 60 30 10; do
if [ ${grace} -gt $i ]
then
hours=$((${grace} / 3600))
minutes=$((${grace} % 3600 / 60))
seconds=$((${grace} % 60))
time=""
if [ ${hours} -gt 1 ]
then
time="${hours} hours "
elif [ ${hours} -eq 1 ]
then
time="1 hour "
fi
if [ ${minutes} -gt 1 ]
then
time="${time}${minutes} minutes "
elif [ ${minutes} -eq 1 ]
then
time="${time}1 minute "
fi
if [ ${hours} -eq 0 -a ${seconds} -gt 0 ]
then
if [ ${seconds} -eq 1 ]
then
time="${time}${seconds} second"
else
time="${time}${seconds} seconds"
fi
fi
(notify \
"The system ${NODENAME} will be shut down in ${time}
$*")
rm $nologin >/dev/null 2>&1
cat > $nologin <<-!
NO LOGINS: System going down in ${time}
$*
!
/usr/bin/sleep $((${grace} - $i))
grace=$i
fi
done
# Confirm that we really want to shutdown.
if [ ${askconfirmation} ]
then
echo "Do you want to continue? (y or n): \c"
read b
if [ "$b" != "y" ]
then
notify "False Alarm: The system ${NODENAME} will not be brought down."
echo 'Shutdown aborted.'
rm $nologin >/dev/null 2>&1
exit 1
fi
fi
# Final shutdown message, and sleep away the final 10 seconds (or less).
(notify \
"THE SYSTEM ${NODENAME} IS BEING SHUT DOWN NOW ! ! !
Log off now or risk your files being damaged
$*")
if [ ${grace} -gt 0 ]
then
/usr/bin/sleep ${grace}
fi
# Go to the requested initstate.
echo "Changing to init state $initstate - please wait"
# We might be racing with a system that's still booting.
# Before starting init, check to see if smf(7) is running. The easiest way
# to do this is to check for the existence of the repository service door.
i=0
# Try three times, sleeping one second each time...
while [ ! -e /etc/svc/volatile/repository_door -a $i -lt 3 ]; do
sleep 1
i=$(($i + 1))
done
if [ ! -e /etc/svc/volatile/repository_door ]; then
notify "Could not find repository door, init-state change may fail!"
fi
/sbin/init ${initstate}
|
