Update socat script

docker/t38modem/.dockerignore

@@ -1,2 +0,0 @@
-Dockerfile
-docker-compose.yml

docker/t38modem/docker-compose.yml

@@ -1,15 +0,0 @@
-services:
-  epvpn:
-    image: git.dergrimm.net/dergrimm/t38modem:latest
-    restart: always
-    environment:
-      T38MODEM_SIP_USERNAME: ""
-      T38MODEM_SIP_PASSWORD: ""
-      T38MODEM_SIP_SERVER: "hg.eventphone.de"
-      T38MODEM_STUN_SERVER: "stun.l.google.com:19302"
-      T38MODEM_DISABLE_T38: true
-      T38MODEM_CMD_ARGS: "-t"
-      T38MODEM_START_PORT: 3000
-      T38MODEM_MODEM_COUNT: 2
-    ports:
-      - 127.0.0.1:3000-3002:3000-3002

docker/t38modem/services/socat.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# $1: PTTY ID
-# $2: TCP server port
+# $1: PTTY
+# $2: Unix socket
 
-socat -d -d "file:${1},raw,echo=0" "TCP-LISTEN:${2},reuseaddr"
+socat -d -d "file:${1},raw,echo=0" "UNIX-LISTEN:${2},reuseaddr"

docker/t38modem/services/t38modem.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-PTTY=$(seq -f "+${1}-%g" -s "," "${T38MODEM_MODEM_COUNT}")
+PTTY=$(seq -f "+${1}%g" -s "," "${T38MODEM_MODEM_COUNT}")
 
 CMD=(
     "t38modem"

docker/t38modem/start.sh

@@ -1,11 +1,17 @@
 #!/usr/bin/env bash
 
-exec "${PREFIX}/services/t38modem.sh" /dev/ttyT38 &
+set -e
+
+PTTY_PREFIX=/dev/ttyT38-
+SOCKET_DIR=/run/t38modem
+
+exec "${PREFIX}/services/t38modem.sh" "$PTTY_PREFIX" &
 sleep 5
 
 for i in $(seq "${T38MODEM_MODEM_COUNT}"); do
-    PORT="$(("${T38MODEM_START_PORT}" + i - 1))"
-    exec "${PREFIX}/services/socat.sh" "/dev/ttyT38-${i}" "${PORT}" &
+    PTTY="${PTTY_PREFIX}${i}"
+    SOCKET="${SOCKET_DIR}/${i}.sock"
+    exec "${PREFIX}/services/socat.sh" "$PTTY" "$SOCKET" &
 done
 
 wait