dot.profile revision 1.48 
1#	$OpenBSD: dot.profile,v 1.48 2021/08/29 13:31:52 kn Exp $
2#	$NetBSD: dot.profile,v 1.1 1995/12/18 22:54:43 pk Exp $
3#
4# Copyright (c) 2009 Kenneth R. Westerback
5# Copyright (c) 1995 Jason R. Thorpe
6# Copyright (c) 1994 Christopher G. Demetriou
7# All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17# 3. All advertising materials mentioning features or use of this software
18#    must display the following acknowledgement:
19#	This product includes software developed by Christopher G. Demetriou.
20# 4. The name of the author may not be used to endorse or promote products
21#    derived from this software without specific prior written permission
22#
23# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33#
34
35export VNAME=$(sysctl -n kern.osrelease)
36export VERSION="${VNAME%.*}${VNAME#*.}"
37export ARCH=$(sysctl -n hw.machine)
38export OBSD="OpenBSD/$ARCH $VNAME"
39export PATH=/sbin:/bin:/usr/bin:/usr/sbin:/
40
41umask 022
42
43# emacs-style command line editing.
44set -o emacs
45
46# Leave installer prompt without user interaction.
47TIMEOUT_ACTION='kill $$'
48TIMEOUT_PERIOD_SEC=5
49
50start_timeout() {
51	(
52		sleep $TIMEOUT_PERIOD_SEC && eval $TIMEOUT_ACTION
53	) |&
54	WDPID=$!
55
56	# Close standard input of the co-process.
57	exec 3>&p; exec 3>&-
58}
59
60stop_timeout() {
61	kill -KILL $WDPID 2>/dev/null
62}
63
64reset_watchdog() {
65	stop_timeout
66	start_timeout
67}
68
69if [[ -z $DONEPROFILE ]]; then
70	DONEPROFILE=YES
71
72	# Extract rootdisk from last 'root on ...' dmesg line.
73	rootdisk=$(dmesg | sed -E '/^root on ([^ ]+) .*$/h;$!d;g;s//\1/')
74	mount -u /dev/${rootdisk:-rd0a} /
75
76	# Create a fake rc that just returns 1 and throws us back.
77	echo ! : >/etc/rc
78
79	# Create working directories with proper permissions in /tmp.
80	mkdir -m u=rwx,go=rx -p /tmp/{ai,i}
81
82	# Start autoconfiguration daemons.
83	# Hide legit "already running" errors when reentering the installer.
84	[[ -x /sbin/resolvd ]] && /sbin/resolvd 2>/dev/null
85	[[ -x /sbin/dhcpleased ]] && /sbin/dhcpleased 2>/dev/null
86	[[ -x /sbin/slaacd ]] && /sbin/slaacd 2>/dev/null
87
88	# Set up some sane tty defaults.
89	echo 'erase ^?, werase ^W, kill ^U, intr ^C, status ^T'
90	stty newcrt werase ^W intr ^C kill ^U erase ^? status ^T
91
92	cat <<__EOT
93
94Welcome to the $OBSD installation program.
95__EOT
96	# try unattended install
97	/autoinstall -x
98
99	# Set timer to automatically start unattended installation or upgrade
100	# if netbooted or if a response file is found in / after a timeout,
101	# but only the very first time around.
102	timeout=false
103	if [[ ! -f /tmp/ai/noai ]] && { ifconfig netboot >/dev/null 2>&1 ||
104		[[ -f /auto_install.conf ]] ||
105		[[ -f /auto_upgrade.conf ]]; }; then
106
107		echo "Starting non-interactive mode in ${TIMEOUT_PERIOD_SEC} seconds..."
108		>/tmp/ai/noai
109
110		# Set trap handlers to remove timer if the shell is interrupted,
111		# killed or about to exit.
112		trap 'exit 1' INT
113		trap 'timeout=true' TERM
114		trap 'stop_timeout' EXIT
115
116		# Stop monitoring background processes to avoid printing job
117		# completion notices in interactive shell mode.
118		# Silence "[1] <pid>" on stderr when starting the timer.
119		set +m
120		start_timeout 2>/dev/null
121	fi
122
123	while :; do
124		read REPLY?'(I)nstall, (U)pgrade, (A)utoinstall or (S)hell? '
125
126		# Begin the automatic installation if the timeout has expired.
127		if $timeout; then
128			timeout=false
129			echo
130			REPLY=a
131		else
132			# User has made a choice; stop the read timeout.
133			stop_timeout
134		fi
135
136		case $REPLY in
137		[aA]*)	/autoinstall && break;;
138		[iI]*)	/install && break;;
139		[uU]*)	/upgrade && break;;
140		[sS]*)	break;;
141		esac
142	done
143fi
144