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dhcp 4.1 r7

    1: #!/bin/sh
    2: #
    3: # simplified dhclient-script for NeXTSTEP/OPENSTEP
    4: #
    5: # removed a lot of the cruft from the netbsd version since NeXTSTEP doesn't
    6: # support aliases and lots of things were breaking for no good reason
    7: #
    8: # 14 Sep 1997, David W. Young
    9: #
   10: if [ x$reason = xPREINIT ]; then
   11:   ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 up >/dev/null 2>&1
   12:   exit 0
   13: fi
   14: if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
   15:    [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
   16:   current_hostname=`hostname`
   17:   if [ x$current_hostname = x ] || \
   18:      [ x$current_hostname = x$old_host_name ]; then
   19:     if [ x$current_hostname = x ] || \
   20:        [ x$new_host_name != x$old_host_name ]; then
   21:       hostname $new_host_name
   22:     fi
   23:   fi
   24:     
   25:   if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]
   26:    then
   27:     ifconfig $interface $new_ip_address netmask $new_subnet_mask \
   28: 			>/dev/null 2>&1
   29:     route add $new_ip_address 127.1 0 >/dev/null 2>&1
   30:     for router in $new_routers ; do
   31:       route add default $router 1 >/dev/null 2>&1
   32:     done
   33:   fi
   34:   if [ x"$new_domain_name_servers" != x ]; then
   35:     cat /dev/null > /etc/resolv.conf.dhclient
   36:     if [ "x$new_domain_search" != x ]; then
   37:       echo search $new_domain_search >> /etc/resolv.conf.dhclient
   38:     elif [ "x$new_domain_name" != x ]; then
   39:       # Note that the DHCP 'Domain Name Option' is really just a domain
   40:       # name, and that this practice of using the domain name option as
   41:       # a search path is both nonstandard and deprecated.
   42:       echo search $new_domain_name >> /etc/resolv.conf.dhclient
   43:     fi
   44:     for nameserver in $new_domain_name_servers; do
   45:       echo nameserver $nameserver >>/etc/resolv.conf.dhclient
   46:     done
   47: 
   48:     mv /etc/resolv.conf.dhclient /etc/resolv.conf
   49:   fi
   50:   exit 0
   51: fi
   52: if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
   53:    || [ x$reason = xSTOP ]; then
   54:   if [ x$old_ip_address != x ]; then
   55:     route delete $old_ip_address 127.1 >/dev/null 2>&1
   56:     for $router in $old_routers ; do
   57:       route delete default $router >/dev/null 2>&1
   58:     done
   59:   fi
   60:   exit 0
   61: fi