From cdf3d1d5acdce2b9baa8eeac8422b48fce899b50 Mon Sep 17 00:00:00 2001
From: Mitchell Riedstra <mitch@riedstra.dev>
Date: Thu, 29 Dec 2022 18:40:18 -0500
Subject: Add a script for wpa_supplicant on linux

---
 bin/Makefile |  1 +
 bin/wpa      | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100755 bin/wpa

diff --git a/bin/Makefile b/bin/Makefile
index 01a6333..0de88b5 100644
--- a/bin/Makefile
+++ b/bin/Makefile
@@ -3,6 +3,7 @@ default: install
 
 linux:
 	install backlight $(HOME)/bin
+	install wpa $(HOME)/bin
 
 install:
 	install -d $(HOME)/bin
diff --git a/bin/wpa b/bin/wpa
new file mode 100755
index 0000000..ea79adb
--- /dev/null
+++ b/bin/wpa
@@ -0,0 +1,59 @@
+#!/bin/sh
+set -e
+session="wpa"
+t=3
+interface=
+nwid=
+wpakey=
+
+help() {
+cat <<EOF
+$0 [-i <interface>] [-n <network_name>] [-p <password>]
+EOF
+exit 1;
+}
+
+while [ $# -gt 0 ] ; do case $1 in
+	-i|if) interface="$2"; shift ; shift ;;
+	-n|nwid) nwid="$2"; shift ; shift ;;
+	-p|wpakey) wpakey="$2"; shift ; shift ;;
+	*) help ;;
+esac ; done
+
+err=0
+for _v in interface nwid wpakey ; do
+	eval v="\$$_v";
+	if [ -z "$v" ] ; then
+		echo "$_v cannot be empty"
+		err=1
+	fi
+done
+if [ $err -eq 1 ] ; then exit 1 ; fi
+
+
+wpakey="$(echo "$wpakey" | sed -e's/"/\\"/g')"
+
+conf_f="$(mktemp /dev/shm/wpa.XXXX)"
+trap 'rm -f $conf_f; exit 1;' EXIT INT
+cat > "$conf_f" <<EOF
+network={
+	ssid="$nwid"
+	scan_ssid=1
+	key_mgmt=WPA-PSK
+	psk="$wpakey"
+}
+EOF
+
+
+if tmux ls -F '#{session_name}' | grep -q "^$session\$" ; then
+	exec tmux att -t "$session"
+fi
+
+tmux new-session -s "$session" \;\
+	send-keys -t "${session}:0" "sudo wpa_supplicant -i \"$interface\" -c \"$conf_f\"" \;\
+	send-keys -t "${session}:0" Enter \;\
+	new-window -n "dhclient" -t 1 \;\
+	send-keys -t "${session}:1" "sleep $t ; sudo dhclient -d -i \"$interface\"" \;\
+	send-keys -t "${session}:1" Enter \;\
+	select-window -t "${session}:0" \;\
+
-- 
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