Strictly speaking, we should check with the SSIDEncoding value sent out by the station, as specified in the 2012 version of 802.11 (page 566), but wpa_supplicant does not (yet) expose this information and stations may not set the field to UTF-8 and still encode their SSID accordingly.

We therefore assume SSIDs to be UTF-8 encoded (the only real alternative is treating SSIDs as raw byte string) in wifi-menu. Note that wifi-menu is only provided as a convenience and many/most use cases involve writing profile files manually.

When the current character map is not set to UTF-8 , wifi-menu will only use ASCII characters in its screen output. This can be forced using for example `LC_CTYPE=C wifi-menu`. --- src/wifi-menu | 40 ++++++++++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 10 deletions(-)

diff --git a/src/wifi-menu b/src/wifi-menu index 42c4c53..525830f 100755 --- a/src/wifi-menu +++ b/src/wifi-menu @@ -20,6 +20,11 @@ Arguments: END }

+# Undo printf escaping in $1 +printf_decode() { + printf -- "${1//%/%%}" +} + # Prepare $1 for use in a special quoting context quote_safe() { if [[ "$1" = "* ]]; then @@ -38,6 +43,9 @@ init_profiles() { unset Interface ESSID source "$PROFILE_DIR/$profile" > /dev/null if [[ "$Interface" = "$1" && -n "$ESSID" ]]; then + if [[ "$ESSID" = ""*" ]]; then + ESSID=${ESSID:2:-1} + fi printf "%s" "$ESSID" if [[ "$Description" =~ "Automatically generated" ]]; then return 2 @@ -62,14 +70,19 @@ init_profiles() {

# Build ENTRIES as an argument list for dialog based on scan results in $1 init_entries() { - local i=0 sep=$'\t' flags signal ssid + local i=0 sep=$'\t' decoded flags signal ssid while IFS=$'\t' read -r signal flags ssid; do + decoded=$(printf_decode "$ssid") ENTRIES[i++]="--" # the SSID might look like an option to dialog - ENTRIES[i++]=$ssid - if is_yes "${CONNECTED:-no}" && [[ "$ssid" = "$CONNECTION" ]]; then + if [[ "$CHARMAP" = "UTF-8" ]]; then + ENTRIES[i++]=$decoded + else + ENTRIES[i++]=$ssid + fi + if is_yes "${CONNECTED:-no}" && [[ "$decoded" = "$CONNECTION" ]]; then ENTRIES[i]="*" # Currently connected - elif in_array "$ssid" "${ESSIDS[@]}"; then - if in_array "$(ssid_to_profile "$ssid")" "${GENERATED[@]}"; then + elif in_array "$decoded" "${ESSIDS[@]}"; then + if in_array "$(ssid_to_profile "$decoded")" "${GENERATED[@]}"; then ENTRIES[i]="." # Automatically generated else ENTRIES[i]=":" # Handmade @@ -115,11 +128,14 @@ Do you want to overwrite it?"

# Create a profile for ssid $1 create_profile() { - local box flags key msg security - PROFILE="$INTERFACE-${1////_}" + local box flags key msg security signal ssid + PROFILE=$(iconv -c -f UTF-8 -t //TRANSLIT <<< "$1") + PROFILE="$INTERFACE-${PROFILE//[?/]/_}" [[ -e "$PROFILE_DIR/$PROFILE" ]] && PROFILE+=".wifi-menu" confirm_profile || return $? - flags=$(grep -m 1 $'\t'"$1$" "$NETWORKS" | cut -f 2) + while IFS=$'\t' read -r signal flags ssid; do + [[ "$(printf_decode "$ssid")" != "$1" ]] || break + done < "$NETWORKS" if [[ "$flags" =~ WPA|WEP ]]; then security=${BASH_REMATCH[0],,} else @@ -221,6 +237,8 @@ ensure_root "$(basename "$0")" if ! type dialog &> /dev/null; then exit_error "Please install 'dialog' to use wifi-menu" fi +CHARMAP=$(locale charmap) +cd / # We do not want to spawn anything that can block unmounting

INTERFACE=$1 if [[ -z "$INTERFACE" ]]; then @@ -237,7 +255,6 @@ elif ! is_interface "$INTERFACE"; then fi load_interface_config "$INTERFACE"

-cd / # We do not want to spawn anything that can block unmounting if [[ "$RFKill" && "$(rf_status "$INTERFACE" "$RFKill")" ]]; then if ! rf_enable "$INTERFACE" "$RFKill"; then exit_error "Could not unblock transmission on interface '$INTERFACE'" @@ -247,7 +264,7 @@ fi

echo -n "Scanning for networks... " if CONNECTION=$(wpa_call "$INTERFACE" status 2> /dev/null | grep -m 1 "^ssid="); then - CONNECTION=${CONNECTION#ssid=} + CONNECTION=$(printf_decode "${CONNECTION#ssid=}") CONNECTED=yes fi NETWORKS=$(wpa_supplicant_scan "$INTERFACE" 3,4,5) @@ -270,6 +287,9 @@ Flags description: CHOICE=$(dialog --menu "$MSG" 24 50 12 "${ENTRIES[@]}" --stdout) RETURN=$? if (( RETURN == 0 )); then + if [[ "$CHARMAP" != "UTF-8" ]]; then + CHOICE=$(printf_decode "$CHOICE") + fi connect_to_ssid "$CHOICE" RETURN=$? fi