eiwd: add back iwd_passphrase

extra/eiwd/build

@@ -9,6 +9,8 @@
 make
 make install
 
+cp -f iwd_passphrase "$1/usr/bin"
+
 # Install runit service.
 mkdir -p "$1/etc/sv/eiwd"
 cp -f  eiwd.run                  "$1/etc/sv/eiwd/run"

extra/eiwd/checksums

@@ -1,2 +1,3 @@
 3f0ceb79c662050325034dcd8a7b5cdf0d7e80560b65ca5f16bce7e115247a8e
 9798194395fbc26a1ad8465bab7ac9c9e94c3a51edaf5987a414037c34169e63
+bf22ccc74ff06d56f8525e3d41361eb413de56e5eaccbf9cfdfb1bf5491dbf40

extra/eiwd/files/iwd_passphrase

@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# Simple script to generate iwd network files.
+
+[ "$1" ] || {
+    printf '%s\n' "usage: printf pass | ${0##*/} ssid" >&2
+    exit 1
+}
+
+# Read the password from 'stdin'.
+read -r pass; [ "$pass" ] || exit 1
+
+# Consider all characters as single-byte.
+export LC_CTYPE=C
+
+# The SSID appears verbatim in the name if it contains
+# only alphanumeric characters, spaces, underscores or
+# minus signs. Otherwise it is encoded as an equal sign
+# followed by the lower-case hex encoding of the name.
+case $1 in
+    *[!A-Za-z0-9_' '-]*)
+        ssid="=$(printf %s "$1" | od -vA n -t x1 | tr -d '\n ')"
+    ;;
+
+    *)
+        ssid=$1
+    ;;
+esac
+
+printf '%s\n\n' "Save this output to /var/lib/iwd/$ssid.psk" >&2
+printf '[Security]\n'
+printf 'Passphrase=%s\n' "$pass"
+printf '\nTIP: You can use this output directly as the\n' >&2
+printf '     help messages are printed to stderr.\n' >&2

extra/eiwd/sources

@@ -1,2 +1,3 @@
 https://github.com/illiliti/eiwd/releases/download/VERSION-1/iwd-MAJOR.MINOR.tar.xz
 files/eiwd.run
+files/iwd_passphrase