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- #!/bin/sh
- # This checks IP address syntax.
- # usage: syntax_check ADDRESS #-OF-EXPECTED-SEGMENTS (up to 4)
- # example: syntax_check 123.22.43.1 4
- # returns: 0=found correct 1=too many fields 2=non numeric field found
- syntax_check() {
- RET_CODE=0
- SCRATCH=$1
- SCRATCH=`echo $SCRATCH | tr "." "/"`
- INDEX=$2
- while [ ! "$INDEX" = "0" ]; do
- # OK, so I'm a LISP-head :^)
- FIELD=`basename $SCRATCH`
- SCRATCH=`dirname $SCRATCH`
- if expr $FIELD + 1 1> /dev/null 2> /dev/null; then
- GOOD=y
- else
- RET_CODE=2; # non-numeric field
- fi
- INDEX=`expr $INDEX - 1`
- done
- if [ ! "$SCRATCH" = "." ]; then
- RET_CODE=1; # too many arguments
- fi
- if [ "$3" = "WARN" -a ! "$RET_CODE" = "0" ]; then
- cat << EOF
-
- The address you have entered seems to be non-standard. We were expecting $2
- groups of numbers seperated by dots, like: 127.0.0.1
- Are you absolutely sure you want to use the address $1?
-
- EOF
- echo -n "Use funny address $1 ([y]es, [n]o)? "
- read USE_FUNNY;
- echo
- if [ "$USE_FUNNY" = "y" ]; then
- RET_CODE = 0;
- fi
- else
- if [ "$3" = "ECHO" ]; then
- echo $RET_CODE;
- fi
- fi
- return $RET_CODE;
- }
-
- if [ ! -d lost+found -a ! -d vmlinuz -a ! -d proc ]; then # cheap, but it works :^)
- cd /
- fi;
-
- ############################################################################
- #
- # Disclaimer:
- #
- # WARNING! USE THIS SCRIPT AT YOUR OWN RISK, I HAVE NO IDEA WHAT IT
- # WILL DO IF RUN ON YOUR COMPUTER! I ACCEPT NO RESPONSIBILITY!
- #
- # A script to help get you on the net. Original idea from the MCC
- # install.net. This script asks you for your hostname, domainname, IP
- # address, network address, gateway, netmask, broadcast address, and
- # your DNS server. It then proceeds to set up the networking files
- # using the answers you gave it. Make sure that the files and programs
- # point to the right directory. This is set up as documented in the
- # NET-2-HOWTO. Please email me about any problems with, or errors in,
- # the script.
- #
- # Jim Robinson
- # jimr@simons-rock.edu
- ############################################################################
- #
- # IMPORTANT!!! NO LEADING '/' in the paths below, or this script will not
- # function from the bootdisk.
- IFCONFIG=sbin/ifconfig # Where ifconfig program is.
- ROUTE=sbin/route # Where route program is.
- RC=etc/rc.d/rc.inet1 # Where rc.inet1 file is.
- RESOLV=etc/resolv.conf # Where resolv.conf file is.
- HOSTS=etc/hosts # Where hosts file is.
- ETCNETWORKS=etc/networks # Where networks file is.
- SMAIL=var/lib/smail/config # Smail configuration file
- ELMRC=var/lib/elm/elm.rc # ELM rc file
- #
- # defaults:
- NETWORK=127.0.0.0
- IPADDR=127.0.0.1
- #
- ############################################################################
- # Question and answer.
- ############################################################################
- #
- cat << EOF
-
- NETWORK CONFIGURATION
-
- Now we will attempt to configure your mail and TCP/IP. This process probably
- won't work on all possible network configurations, but should give you a good
- start. You will be able to reconfigure your system at any time by typing:
-
- netconfig
-
- EOF
- HOSTNAME=""
- while [ "$HOSTNAME" = "" ]; do
- cat << EOF
- First, we'll need the name you'd like to give your host. Only the base
- hostname is needed right now. (not the domain)
-
- EOF
- echo -n "Enter hostname: "
- read HOSTNAME
- done
-
- while [ "$DOMAIN" = "" ]; do
- cat << EOF
-
- Now, we need the domain name. Do not supply a leading '.'
-
- EOF
- echo -n "Enter domain name for $HOSTNAME: "
- read DOMAIN
- done
- echo
-
- cat << EOF
- If you only plan to use TCP/IP through loopback, then your IP address will
- be 127.0.0.1 and we can skip a lot of the following questions.
-
- EOF
-
- LOOPBACK=unknown
- while [ ! "$LOOPBACK" = "y" -a ! "$LOOPBACK" = "n" ]; do
- echo -n "Do you plan to ONLY use loopback ([y]es, [n]o)? "
- read LOOPBACK;
- echo
- done
-
- if [ -r etc/rc.d/rc.inet1 -a "$LOOPBACK" = "n" ]; then
-
- while [ 0 ]; do
- echo "Enter your IP address for the local machine. Example: 111.112.113.114"
- echo -n "Enter IP address for $HOSTNAME (aaa.bbb.ccc.ddd): "
- read IPADDR
- if [ "$IPADDR" = "" ]; then
- continue;
- fi
- syntax_check $IPADDR 4 WARN
- if [ $? = 0 ]; then
- break;
- fi
- done
- echo
-
- # while [ 0 ]; do
- # echo "Enter your network address. This will usually be your IP address"
- # echo "with the last number replaced by 0, such as 111.112.113.0"
- # echo -n "Enter network address (aaa.bbb.ccc.ddd): "
- # read NETWORK
- # if [ "$NETWORK" = "" ]; then
- # continue;
- # fi
- # syntax_check $NETWORK 4 WARN
- # if [ $? = 0 ]; then
- # break;
- # fi
- # done
- # echo
-
- while [ 0 ]; do
- echo "Enter your gateway address, such as 111.112.113.1"
- echo "If you don't have a gateway, you can edit /etc/rc.d/rc.inet1 later,"
- echo "or you can probably get away with entering your own IP address here."
- echo -n "Enter gateway address (aaa.bbb.ccc.ddd): "
- read GATEWAY
- if [ "$GATEWAY" = "" ]; then
- continue;
- fi
- syntax_check $GATEWAY 4 WARN
- if [ $? = 0 ]; then
- break;
- fi
- done
- echo
-
- while [ 0 ]; do
- echo "Enter your netmask. This will generally look something"
- echo "like this: 255.255.255.0"
- echo -n "Enter netmask (aaa.bbb.ccc.ddd): "
- read NETMASK
- if [ "$NETMASK" = "" ]; then
- continue;
- fi
- syntax_check $NETMASK 4 WARN
- if [ $? = 0 ]; then
- break;
- fi
- done
- echo
-
- # while [ "$BROADCAST" = "" ]; do
- # echo "Your broadcast address will usually be your IP address"
- # echo "with 255 replacing the last value, such as: 111.112.113.255"
- # echo -n "Enter broadcast address (aaa.bbb.ccc.ddd): "
- # read BROADCAST
- # if [ "$BROADCAST" = "" ]; then
- # continue;
- # fi
- # syntax_check $BROADCAST 4 WARN
- # if [ $? = 0 ]; then
- # break;
- # fi
- # done
- # echo
-
- BROADCAST=`ipmask $NETMASK $IPADDR | cut -f 1 -d ' '`
- NETWORK=`ipmask $NETMASK $IPADDR | cut -f 2 -d ' '`
-
- echo "Setting up TCP/IP..."
- else
- if [ ! -r etc/rc.d/rc.inet1 ]; then
- cat << EOF
-
- You do not seem to have TCP/IP installed, so all I can really set up for
- you is your hostname/domainname. This won't mean much since you're not on
- the network, but it will let you have the hostname you prefer shown at the
- login prompt.
-
- EOF
- fi
- fi
-
- echo "Creating /etc/HOSTNAME..."
- echo $HOSTNAME.$DOMAIN > etc/HOSTNAME
-
- #
- ############################################################################
- # The rc.inet1 file.
- ############################################################################
- #
- if [ -f $RC ]; then
- cp $RC tmp/`basename $RC`.OLD
- echo "Creating /$RC..."
- if [ "$LOOPBACK" = "n" ]; then # we are using an ethernet card
- /bin/cat <<EOF >$RC
- #! /bin/sh
- #
- # rc.inet1 This shell script boots up the base INET system.
- #
- # Version: @(#)/etc/rc.d/rc.inet1 1.01 05/27/93
- #
-
- HOSTNAME=\`cat /etc/HOSTNAME\`
-
- # Attach the loopback device.
- /$IFCONFIG lo 127.0.0.1
- /$ROUTE add -net 127.0.0.0
-
- # IF YOU HAVE AN ETHERNET CONNECTION, use these lines below to configure the
- # eth0 interface. If you're only using loopback or SLIP, don't include the
- # rest of the lines in this file.
-
- # Edit for your setup.
- IPADDR="$IPADDR" # REPLACE with YOUR IP address!
- NETMASK="$NETMASK" # REPLACE with YOUR netmask!
- NETWORK="$NETWORK" # REPLACE with YOUR network address!
- BROADCAST="$BROADCAST" # REPLACE with YOUR broadcast address, if you
- # have one. If not, leave blank and edit below.
- GATEWAY="$GATEWAY" # REPLACE with YOUR gateway address!
-
- # Uncomment ONLY ONE of the three lines below. If one doesn't work, try again.
- # /$IFCONFIG eth0 \${IPADDR} netmask \${NETMASK} broadcast \${BROADCAST}
- /$IFCONFIG eth0 \${IPADDR} broadcast \${BROADCAST} netmask \${NETMASK}
- # /$IFCONFIG eth0 \${IPADDR} netmask \${NETMASK}
-
- # Uncomment these to set up your IP routing table.
- /$ROUTE add -net \${NETWORK} netmask \${NETMASK}
- /$ROUTE add default gw \${GATEWAY} metric 1
-
- # End of rc.inet1
- EOF
- chmod 755 $RC
- else # we are only using loopback
- /bin/cat <<EOF >$RC
- #! /bin/sh
- #
- # rc.inet1 This shell script boots up the base INET system.
- #
- # Version: @(#)/etc/rc.d/rc.inet1 1.01 05/27/93
- #
-
- HOSTNAME=\`cat /etc/HOSTNAME\`
-
- # Attach the loopback device.
- /$IFCONFIG lo 127.0.0.1
- /$ROUTE add -net 127.0.0.0
-
- # IF YOU HAVE AN ETHERNET CONNECTION, use these lines below to configure the
- # eth0 interface. If you're only using loopback or SLIP, don't include the
- # rest of the lines in this file.
-
- # Edit for your setup.
- #IPADDR="$IPADDR" # REPLACE with YOUR IP address!
- #NETMASK="$NETMASK" # REPLACE with YOUR netmask!
- #NETWORK="$NETWORK" # REPLACE with YOUR network address!
- #BROADCAST="$BROADCAST" # REPLACE with YOUR broadcast address, if you
- # have one. If not, leave blank and edit below.
- #GATEWAY="$GATEWAY" # REPLACE with YOUR gateway address!
-
- # Uncomment ONLY ONE of the three lines below. If one doesn't work, try again.
- # /$IFCONFIG eth0 \${IPADDR} netmask \${NETMASK} broadcast \${BROADCAST}
- #/$IFCONFIG eth0 \${IPADDR} broadcast \${BROADCAST} netmask \${NETMASK}
- # /$IFCONFIG eth0 \${IPADDR} netmask \${NETMASK}
-
- # Uncomment these to set up your IP routing table.
- #/$ROUTE -n add \${NETWORK} netmask \${NETMASK}
- #/$ROUTE add default gw \${GATEWAY} metric 1
-
- # End of rc.inet1
- EOF
- chmod 755 $RC
- fi # write out the script
- fi # only alter if it already exists
- #
- ############################################################################
- # The networks file.
- ############################################################################
- #
- if [ -f $ETCNETWORKS ]; then cp $ETCNETWORKS tmp/`basename $ETCNETWORKS`.OLD;fi
- echo "Creating /$ETCNETWORKS..."
- /bin/cat <<EOF >$ETCNETWORKS
- #
- # networks This file describes a number of netname-to-address
- # mappings for the TCP/IP subsystem. It is mostly
- # used at boot time, when no name servers are running.
- #
-
- loopback 127.0.0.0
- localnet $NETWORK
-
- # End of networks.
- EOF
- chmod 644 $ETCNETWORKS
- #
- ############################################################################
- # The hosts file.
- ############################################################################
- #
- echo "Creating /$HOSTS..."
- if [ -f $HOSTS ];then cp $HOSTS tmp/`basename $HOSTS`.OLD;fi
- /bin/cat <<EOF >$HOSTS
- #
- # hosts This file describes a number of hostname-to-address
- # mappings for the TCP/IP subsystem. It is mostly
- # used at boot time, when no name servers are running.
- # On small systems, this file can be used instead of a
- # "named" name server. Just add the names, addresses
- # and any aliases to this file...
- #
- # By the way, Arnt Gulbrandsen <agulbra@nvg.unit.no> says that 127.0.0.1
- # should NEVER be named with the name of the machine. It causes problems
- # for some (stupid) programs, irc and reputedly talk. :^)
- #
-
- # For loopbacking.
- 127.0.0.1 localhost
- $IPADDR $HOSTNAME.$DOMAIN $HOSTNAME
-
- # End of hosts.
- EOF
- chmod 644 $HOSTS
- #
- ##########################################################################
- # The Smail 3.1.28 configuration file
- ##########################################################################
- #
- #mkdir -p `dirname $SMAIL`
- #if [ -f $SMAIL ];then
- # cp $SMAIL tmp/`basename $SMAIL`.OLD
- #fi
- #echo "Creating /$SMAIL..."
- #/bin/cat <<EOF >$SMAIL
- ##
- ## smail configuration for $HOSTNAME
- ## (see smail(5) man page for details and other options)
- ##
- #-smtp_debug
- #hostname=$HOSTNAME.$DOMAIN
- #visible_domain=$DOMAIN
- #more_hostnames=$HOSTNAME.$DOMAIN
- #postmaster=postmaster
- #smtp_accept_max=10
- #EOF
- #echo 'smtp_banner="$primary_name Linux Smail$version #$compile_num ready at $date"' >> $SMAIL
- #echo 'received_field="Received: \' >> $SMAIL
- #echo ' ${if def:sender_host \' >> $SMAIL
- #echo ' {from $sender_host by $primary_name \' >> $SMAIL
- #echo ' ${if def:sender_proto: with $sender_proto}\' >> $SMAIL
- #echo ' \n\t(Linux Smail$version #$compile_num) }\' >> $SMAIL
- #echo ' else{by $primary_name ${if def:sender_proto:with $sender_proto }\' >> $SMAIL
- #echo ' (Linux Smail$version #$compile_num)\n\t}}\' >> $SMAIL
- #echo ' id $message_id; $spool_date"' >> $SMAIL
- #chmod 644 $SMAIL
- ##
- ############################################################################
- # The ELM rc file
- ############################################################################
- #
- mkdir -p `dirname $ELMRC`
- if [ -f $ELMRC ];then
- cp $ELMRC tmp/`basename $ELMRC`.OLD
- fi
- echo "Creating /$ELMRC..."
- /bin/cat <<EOF >$ELMRC
- #------------------------ global elm.rc file ------------------
- #
- # this expects any global aliases in /usr/lib/aliases.text
- #
- # you probably also want to set the visible_name parameter in
- # /usr/lib/smail/config if you use smail3.1.28
- #
- # this is the unqualified hostname
- #
- hostname = $HOSTNAME
- #
- # this is the local domain
- #
- hostdomain = .$DOMAIN
- #
- # this is the fully qualified hostname
- #
- hostfullname = $HOSTNAME.$DOMAIN
- EOF
- chmod 644 $ELMRC
- #
- ############################################################################
- # The resolv.conf file.
- ############################################################################
- #
- if [ "$LOOPBACK" = "n" ]; then
- echo
- echo -n "Will you be accessing a nameserver ([y]es, [n]o)? "
- read NAMESV;
- if [ "$NAMESV" = "y" -o "$NAMESV" = "Y" ]; then
- cat << EOF
- Here is your current IP address, full hostname, and base hostname:
- $IPADDR $HOSTNAME.$DOMAIN $HOSTNAME
-
- Please give the IP address of the name server to use.
- You can add more Domain Name Servers by editing /$RESOLV.
-
- EOF
- while [ "$NAMESERVER" = "" ]; do
- echo -n "Name Server for domain $DOMAIN (aaa.bbb.ccc.ddd): "
- read NAMESERVER
- done
-
- if [ -f $RESOLV ]; then cp $RESOLV tmp/`basename $RESOLV`.OLD;fi
- echo "domain $DOMAIN" >$RESOLV
- echo "nameserver $NAMESERVER" >>$RESOLV
- else
- echo "domain $DOMAIN" >$RESOLV
- fi
- fi
- if [ "$LOOPBACK" = "n" ]; then chmod 644 $RESOLV ;fi
- #
- ############################################################################
- # Change permissions and exit.
- ############################################################################
- #
- chown root.root $HOSTS $RESOLV $RC
- chmod 644 $HOSTS $RESOLV
- chmod 754 $RC
-
- cat << EOF
-
- Your networking software has now been configured.
-
- EOF
-