Improved to create PID folder and set permissions to run daemon as at…

… startup. Most systems clear out /var/run at boot so it must be initialized at boot every time.

init/ser2sock

@@ -31,12 +31,15 @@ PROGRAM_NAME="ser2sock"
 # Use the name of this script as the SCRIPT_NAME
 SCRIPT_NAME=${0##*/}
 
+# Uncoment next line to set user to run daemon as. Best to be a real user like "pi:pi".
+#RUN_AS="root:root"
+
 CONF_FILE="/etc/ser2sock/${SCRIPT_NAME}.conf"
 EXECUTABLE="/usr/local/bin/${PROGRAM_NAME}"
-PID_FILE="/var/run/${SCRIPT_NAME}.pid"
+PID_FILE="/var/run/${PROGRAM_NAME}/${SCRIPT_NAME}.pid"
 
-#EXTRA_START_ARGS="--chuid pi:pi"
 EXTRA_START_ARGS=""
+
 DAEMON_ARGS="-d -f ${CONF_FILE} -P ${PID_FILE}"
 RETVAL=0
 
@@ -45,6 +48,26 @@ GREEN=$(tput setaf 2)
 RED=$(tput setaf 1)
 NORMAL=$(tput sgr0)
 
+# PID folder sanity check. /var/run may be a tmp file system so we need to check.
+if [ ! -d /var/run/${PROGRAM_NAME} ]; then
+ mkdir /var/run/${PROGRAM_NAME} 2>/dev/null
+ if [ $? -ne 0 ]; then
+ echo $"${BOLD}${RED}Failed to create PID folder '/var/run/${PROGRAM_NAME}/'"
+ exit 1
+ fi
+fi
+
+# Are we running as a specific user? If so then we need the correct permissions.
+if [ -n "${RUN_AS}" ]; then
+ EXTRA_START_ARGS+=" --chuid ${RUN_AS}"
+ # Set permissions to pid folder for the user
+ chown ${RUN_AS} /var/run/${PROGRAM_NAME} 2>/dev/null
+ if [ $? -ne 0 ]; then
+ echo $"${BOLD}${RED}Failed to set PID folder '/var/run/${PROGRAM_NAME}/' owner to '${RUN_AS}'"
+ exit 1
+ fi
+fi
+
 start() {
  echo
  echo $"Starting instantiation ${BOLD}${SCRIPT_NAME}${NORMAL} of ${BOLD}${PROGRAM_NAME}${NORMAL}..."