/usr/sbin/startsrv is in remote-tty 4.0-13build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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  | #!/bin/sh
# $Id: startsrv.sh,v 1.10 2001/03/24 21:17:40 vixie Exp $
# Copyright (c) 1996 by Internet Software Consortium.
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
# ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
# CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
# PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
# SOFTWARE.
default_options='-b 9600 -w 8 -p none'
default_sock_prot='ug=rw,o='
default_sock_owner='rttymgr:dialout'
default_log_prot='u=rw,g=r,o='
for host
do
	echo -n "startsrv($host):"
	#
	# kill any existing ttysrv on this port
	#
	if [ -f /var/run/remote-tty/pid/$host ]; then
		pid=`cat /var/run/remote-tty/pid/$host`
		tmpfile=`mktemp -t`
		while ps w$pid >$tmpfile 2>&1
		do
			grep -q ttysrv $tmpfile && {
				echo -n " $pid killed"
				kill $pid
				sleep 1
			} || {
				break
			}
		done
		rm /var/run/remote-tty/pid/$host $tmpfile
	fi
	#
	# start up a new one
	#
	if [ -s /etc/remote-tty/opt/${host}.srv ]; then
		options=`cat /etc/remote-tty/opt/${host}.srv`
	elif [ -s /etc/remote-tty/opt/DEFAULT.srv ]; then
		options=`cat /etc/remote-tty/opt/DEFAULT.srv`
	else
		options="$default_options"
	fi
	if [ -s /etc/remote-tty/prot/${host}.sock ]; then
		sock_prot=`cat /etc/remote-tty/prot/${host}.sock`
	elif [ -s /etc/remote-tty/prot/DEFAULT.sock ]; then
		sock_prot=`cat /etc/remote-tty/prot/DEFAULT.sock`
	else
		sock_prot="$default_sock_prot"
	fi
	if [ -s /etc/remote-tty/owner/${host}.sock ]; then
		sock_owner=`cat /etc/remote-tty/owner/${host}.sock`
	elif [ -s /etc/remote-tty/owner/DEFAULT.sock ]; then
		sock_owner=`cat /etc/remote-tty/owner/DEFAULT.sock`
	else
		sock_owner="$default_sock_owner"
	fi
	if [ -s /etc/remote-tty/prot/${host}.log ]; then
		log_prot=`cat /etc/remote-tty/prot/${host}.log`
	elif [ -s /etc/remote-tty/prot/DEFAULT.log ]; then
		log_prot=`cat /etc/remote-tty/prot/DEFAULT.log`
	else
		log_prot="$default_log_prot"
	fi
	rm -f /var/run/remote-tty/sock/$host /var/run/remote-tty/pid/$host
	/usr/sbin/ttysrv $options \
		-t /etc/remote-tty/dev/$host \
		-s /var/run/remote-tty/sock/$host \
		-l /var/log/remote-tty/$host/$host \
		-i /var/run/remote-tty/pid/$host \
		> /var/log/remote-tty/out/$host 2>&1 &
	echo -n " "
	tries=5
	while [ $tries -gt 0 -a ! -f /var/run/remote-tty/pid/$host ]; do
		echo -n "."
		sleep 1
		tries=`expr $tries - 1`
	done
	if [ ! -f /var/run/remote-tty/pid/$host ]; then
		echo " [startup failed]"
	else
		newpid=`cat /var/run/remote-tty/pid/$host`
		chmod $sock_prot /var/run/remote-tty/sock/$host
		chown $sock_owner /var/run/remote-tty/sock/$host
		chmod $log_prot /var/log/remote-tty/$host/$host
		echo " $newpid started"
	fi
done
exit
 |