fixing volume(1): separating out the system-dependent portions

bin/volume.netbsd

@@ -0,0 +1,18 @@
+#!/bin/sh -e
+
+# NetBSD 9.2 STABLE 2021-07
+
+case "$1" in
+a*)
+	audioctl -w play.gain=$2 >/dev/null
+	exit $?
+	;;
+
+s*)	# hacky
+	audioctl -a \
+		| grep "play\.gain" \
+		| cut -d '=' -f 2
+	exit $?
+	;;
+esac
+exit 1

bin/volume.pulseaudio

@@ -0,0 +1,20 @@
+#!/bin/sh -e
+
+# pactl 15.0 compiled+linked with libpulse 15.0.0
+
+case "$argv1" in
+a*)
+	pactl set-sink-volume @DEFAULT_SINK@ $2%
+	exit $?
+	;;
+
+s*)	# really hacky, gets the job done
+	# gets the volume % of Lchan specifically
+	pactl get-sink-volume @DEFAULT_SINK@ \
+		| sed q \
+		| cut -d '/' -f 2 \
+		| xargs echo \
+		| sed s/'%'//
+	;;
+esac
+exit 1