45 lines
1.1 KiB
Bash
Executable File
45 lines
1.1 KiB
Bash
Executable File
#!/bin/sh --
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# sx - start an xserver
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# requires xauth Xorg
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cleanup() {
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if [ "$pid" ] && kill -0 "$pid" 2> /dev/null; then
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kill -s TERM "$pid"
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wait "$pid"
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r=$?
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fi
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if ! stty "$stty"; then
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stty sane
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fi
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xauth remove :"$tty"
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exit "${r:-$?}"
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}
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stty=$(stty -g)
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tty=$(ps -o tty= $$)
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case $tty in
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tty*) tty=${tty#tty}
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esac
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cfgdir=${XDG_CONFIG_HOME:-$HOME/.config}/sx
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export XAUTHORITY=${XAUTHORITY:-$cfgdir/xauthority}
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mkdir -p "$cfgdir" "${XAUTHORITY%/*}"
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touch "$XAUTHORITY"
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trap 'cleanup' EXIT
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xauth add :"$tty" MIT-MAGIC-COOKIE-1 "$(od -An -N16 -tx /dev/urandom | tr -d ' ')"
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# Xorg will check if its SIGUSR1 disposition is SIG_IGN and use this state to
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# reply back to the parent process with SIGUSR1 as an indication it is ready
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# to accept connections.
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# Taking advantage of this feature allows us to launch our client directly
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# from the SIGUSR1 handler and avoid the need to poll for server readiness.
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trap 'DISPLAY=:$tty "${@:-$cfgdir/sxrc}"' USR1
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(trap '' USR1 && exec Xorg :"$tty" -keeptty vt"$tty" -noreset -auth "$XAUTHORITY") & pid=$!
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wait "$pid"
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