Bash version of 'Process finder using PTS'

scripts/lfirewall

@@ -18,6 +18,79 @@
 # description: Activates/Deactivates the firewall at boot time
 #
 
+
+has_parent_process(){
+	echo "${1} ${2}"
+	local parent_to_search
+	parent_to_search="${1:-}"
+	if [[ -z "${parent_to_search:-}" ]]
+	then
+		echo "ERROR: need parent process pid as first arg"
+		return 5
+	fi
+	local pid
+	if [[ -z "${2:-}" ]]
+	then
+		pid=$$
+		#pid=$(ps --pid $$ -o ppid=  | xargs)
+	fi
+	if [[ $parent_to_search -eq $pid ]]
+	then
+		echo $parent_to_search
+	else if [[ $pid -gt 0 ]]
+		then
+			parent_process_terminal ${parent_to_search} $(ps --pid ${pid} -o ppid=  | xargs)
+		else
+			echo 0
+		fi
+	fi
+}
+
+find_pid_user_of(){
+	local used_file=$1
+	local regex="$2"
+	lsof ${used_file} | awk 'NR>1 && $1 ~ /'${regex}'/ && !($2 in a){a[$2]++; print $2}'
+}
+
+echo "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"
+declare -g shell_pid=""
+declare -g systemctl_pid=""
+
+#ps -elf | grep 'systemctl' | grep -v grep | awk '{print $13}' | sort -u | while read term ; do echo "$term"; lsof /dev/$term ; echo "TEST:$term" > /dev/$term ; done
+ps -elf | grep 'systemctl' | grep -v grep | awk '{print $13}' | sort -u | while read term
+do
+	echo "$term ---"
+	lsof /dev/$term
+	lsof -F 'cp' /dev/$term
+	echo "$term >>>"
+	#lsof /dev/$term | awk 'NR>1 && $1 ~ /.*sh$/ && !($2 in a){a[$2]++; print $2}'
+	if [[ -z "${shell_pid:-}" ]]
+	then
+		shell_pid=$(find_pid_user_of /dev/$term '.*sh$')
+	fi
+	if [[ -z "${systemctl_pid:-}" ]]
+	then
+		systemctl_pid=$(find_pid_user_of /dev/$term 'systemctl')
+	fi
+	echo "shell_pid=$shell_pid"
+	echo "systemctl_pid=$systemctl_pid"
+	echo "TEST:$term" > /dev/$term
+done
+echo "shell_pid=$shell_pid"
+echo "systemctl_pid=$systemctl_pid"
+if [[ -z "${shell_pid:-}" ]]
+then
+	echo has_parent_process ${shell_pid} ${systemctl_pid}
+	has_parent_process ${shell_pid} ${systemctl_pid}
+else
+	echo "SHELL PID NOT FOUND"
+fi
+echo "Parent terminal:"
+parent_process_terminal
+echo "SSH_TTY: $SSH_TTY"
+echo "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"
+
+
 set -euo pipefail
 
 help_message_lfirewall(){