mirror of https://github.com/aredn/aredn.git
60 lines
1.3 KiB
Bash
Executable File
60 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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# Code in this script is derived from OpenWRT
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# GPLv2 License
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kill_remaining() { # [ <signal> ]
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local sig="${1:-TERM}"
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printf "Sending %s to remaining processes ... " "$sig"
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local my_pid=$$
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local my_ppid
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my_ppid=$(cut -d' ' -f4 /proc/$my_pid/stat)
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local my_ppisupgraded=
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grep -q upgraded "/proc/$my_ppid/cmdline" >/dev/null && {
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local my_ppisupgraded=1
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}
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local stat
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for stat in /proc/[0-9]*/stat; do
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[ -f "$stat" ] || continue
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local pid name _ ppid rest
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read pid name _ ppid rest < "$stat"
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name="${name#(}"; name="${name%)}"
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local cmdline
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read cmdline < "/proc/$pid/cmdline"
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# Skip kernel threads
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[ -n "$cmdline" ] || continue
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if [ $$ -eq 1 ] || [ "$my_ppid" -eq 1 ] && [ -n "$my_ppisupgraded" ]; then
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# Running as init process, kill everything except me
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if [ "$pid" -ne $$ ] && [ "$pid" -ne "$my_ppid" ]; then
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printf "%s " "$name"
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kill "-$sig" "$pid" 2>/dev/null
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fi
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else
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case "$name" in
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# Skip essential services
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*procd*|*ash*|*init*|*ssh*|*dropbear*|*login*|*uhttpd*|*admin*|*sysupgrade*|*upgrade_kill_prep*|*olsr*|*ubusd*) : ;;
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# Killable process
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*)
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if [ "$pid" -ne $$ ] && [ "$ppid" -ne $$ ]; then
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printf "%s " "$name"
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kill "-$sig" "$pid" 2>/dev/null
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fi
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;;
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esac
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fi
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done
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echo ""
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}
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kill_remaining TERM
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sleep 3
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kill_remaining KILL
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sleep 1
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