1 files changed, 34 insertions, 0 deletions
diff --git a/repos/extra/eiwd/iwd_passphrase b/repos/extra/eiwd/iwd_passphrase
new file mode 100644
index 00000000..cf100dd4
--- /dev/null
+++ b/repos/extra/eiwd/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