X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=trusted-network;h=a4325339c541c7db0c11c75dc8d16802cfae312d;hb=HEAD;hp=755fb1f5239dd999f2388471ee6fe09e352eb25b;hpb=d67edcdca8795a4bca116aa532d02dda246a6f53;p=distro-setup

diff --git a/trusted-network b/trusted-network
index 755fb1f..d065009 100755
--- a/trusted-network
+++ b/trusted-network
@@ -1,4 +1,25 @@
 #!/bin/bash
+# I, Ian Kelling, follow the GNU license recommendations at
+# https://www.gnu.org/licenses/license-recommendations.en.html. They
+# recommend that small programs, < 300 lines, be licensed under the
+# Apache License 2.0. This file contains or is part of one or more small
+# programs. If a small program grows beyond 300 lines, I plan to switch
+# its license to GPL.
+
+# Copyright 2024 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 # Usage: run to trust or untrust dns. public wifi sometimes needs to
 # trust dns initially to log in.
@@ -80,10 +101,33 @@ EOF
   fi
 fi
 
+# t11 uses dhclient.conf
 dhclient_restart=false
 # man dhclient.conf
-if ! grep -qP '\bdomain-name-servers\b' /etc/dhcp/dhclient.conf; then
-  sed -i 's/^ *request/request domain-name-servers,/' /etc/dhcp/dhclient.conf
+f=/etc/dhcp/dhclient.conf
+if [[ -e $f ]]; then
+  if $trust; then
+    if ! grep -qP '\bdomain-name-servers\b' $f; then
+      sed -i 's/^ *request/request domain-name-servers,/' $f
+      dhclient_restart=true
+      e $0: dhclient_restart=true
+    fi
+  else
+    if grep -qP '\bdomain-name-servers\b' $f; then
+      sed -i 's/^ *request domain-name-servers,/request/' $f
+      dhclient_restart=true
+      e $0: dhclient_restart=true
+    fi
+  fi
+fi
+
+# t12 uses dhclient.conf
+f=/etc/dhcpcd.conf
+# note: haven't tested
+if ! $trust; then
+  line="nooption domain_name_servers"
+fi
+if [[ -e $f ]] && ! echo $line | cedit $f; then
   dhclient_restart=true
   e $0: dhclient_restart=true
 fi
@@ -106,7 +150,7 @@ if [[ $gateway_if ]]; then
   # rm -f /run/systemd/resolved.conf.d/*$gateway_if*
 
 
-  if $dhclient_restart && grep -Pq "^ *auto ($gateway_if|.* $gateway_if( |$))" /etc/network/interfaces; then
+  if $dhclient_restart && grep -Pq "^ *auto ($gateway_if|.* $gateway_if( |$))" /etc/network/interfaces &>/dev/null; then
     m ifdown $gateway_if
     m ifup $gateway_if
   fi