Ships Telnetd (#213)

Author: mariotaku

services/bin/telnetd

@@ -610,6 +610,7 @@ function runService(): void {
           'd914b3b444433bf49ff83c3c0ae0b729cf7544c074e72c23ec24e5f86aaaf4ac',
           '6215795aed50c11bb7be716cf66326f3657a129143b5edc1b635dab8b8d2fc9f',
           'e04a3d61098c6f74d466da6fb457a52fb61a9cc86869059ae32b13bf43cd9d10',
+          'c8b5093eca9a78ef70b2742f60ab7b1a04e7c9331359f234bd40a0065238815b',
         ];
 
         // RootMyTV v2

services/service.ts

@@ -30,7 +30,7 @@ if [[ -e /var/luna/preferences/webosbrew_failsafe ]]; then
     # server and nag user to actually fix this. (since further reboots could
     # lead to devmode removal, etc...)
 
-    telnetd -l /bin/sh
+    "${SERVICE_DIR}/bin/telnetd" -l /bin/sh
     sleep 1
 
     luna-send -a webosbrew -f -n 1 luna://com.webos.notification/createToast '{"sourceId":"webosbrew","message": "<b>Failsafe mode!</b><br/>A crash has occured during startup. Fix any causes and reboot."}'
@@ -71,7 +71,7 @@ else
 
     # Start root telnet server
     if [[ ! -e /var/luna/preferences/webosbrew_telnet_disabled ]]; then
-        telnetd -l /bin/sh 200>&-
+        "${SERVICE_DIR}/bin/telnetd" -l /bin/sh 200>&-
     fi
 
     # Start sshd

services/startup.sh

@@ -63,16 +63,37 @@ build_sftp() {
 	cp -v -t "${TARGET_DIR}" -- sftp-server
 }
 
+build_telnetd() {
+  cd "${BUILD_ROOT}/busybox-src"
+  make allnoconfig
+  while read -r line; do
+    sed -i -e "s/.*${line%=*}.*/${line}/g" .config
+  done <<EOF
+CONFIG_SHOW_USAGE=y
+CONFIG_FEATURE_VERBOSE_USAGE=y
+CONFIG_FEATURE_COMPRESS_USAGE=y
+CONFIG_FEATURE_DEVPTS=y
+CONFIG_LFS=y
+CONFIG_TELNETD=y
+CONFIG_FEATURE_TELNETD_STANDALONE=y
+CONFIG_FEATURE_TELNETD_PORT_DEFAULT=23
+EOF
+  make ${MAKEOPTS} busybox
+  cp -v busybox "${TARGET_DIR}/telnetd"
+}
+
 [ -d "${TARGET_DIR}" ] || mkdir -p -- "${TARGET_DIR}"
 
 install_ndk 'https://github.com/openlgtv/buildroot-nc4/releases/download/webos-2974f83/arm-webos-linux-gnueabi_sdk-buildroot.tar.gz' 'd7d7454390d366446c15797e1523e63a03e77cdb6391b8858a0e27d243ace34d' &
 download 'dropbear' 'https://github.com/mkj/dropbear/archive/refs/tags/DROPBEAR_2022.83.tar.gz' 'e02c5c36eb53bfcd3f417c6e40703a50ec790a1a772269ea156a2ccef14998d2' &
 download 'rsync'    'https://github.com/WayneD/rsync/archive/refs/tags/v3.2.7.tar.gz'           '4f2a350baa93dc666078b84bc300767a77789ca12f0dec3cb4b3024971f8ef47' &
 download 'openssh'  'https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-9.1p1.tar.gz' '19f85009c7e3e23787f0236fbb1578392ab4d4bf9f8ec5fe6bc1cd7e8bfdd288' &
+download 'busybox'  'https://busybox.net/downloads/busybox-1.36.1.tar.bz2'                      'b8cc24c9574d809e7279c3be349795c5d5ceb6fdf19ca709f80cde50e47de314' &
 wait
 
 . "${NDK_PATH}/environment-setup"
 
 build_dropbear
 build_rsync
 build_sftp
+build_telnetd