From 0e62049339624107f4c85bacef7498bfa50fab16 Mon Sep 17 00:00:00 2001
From: Sebastian Hildebrandt <hildebrandt@plus-innovations.com>
Date: Tue, 7 Dec 2021 06:15:04 +0100
Subject: [PATCH] wifiNetworks() fix empty issue (mac OS)

---
 CHANGELOG.md      |  1 +
 docs/history.html |  5 ++++
 docs/index.html   |  2 +-
 lib/wifi.js       | 74 ++++++++++++++++++++++++-----------------------
 4 files changed, 45 insertions(+), 37 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e3e780..9584ecf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -80,6 +80,7 @@ For major (breaking) changes - **version 4, 3 and 2** - see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 5.9.17         | 2021-12-07     | `wifiNetworks()` fix empty issue (mac OS) |
 | 5.9.16         | 2021-12-05     | `wifiNetworks()` adaption for Apple silicon (mac OS) |
 | 5.9.15         | 2021-11-19     | `cpuCache()` fix (windows) |
 | 5.9.14         | 2021-11-17     | `versions()` python 2 monterey (deprecated warning) fix (mac OS) |
diff --git a/docs/history.html b/docs/history.html
index e99a8cc..b5d19d0 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -57,6 +57,11 @@
                     </tr>
                   </thead>
                   <tbody>
+                    <tr>
+                      <th scope="row">5.9.17</th>
+                      <td>2021-12-07</td>
+                      <td><span class="code">wifiNetworks()</span> fix empty issue (mac OS)</td>
+                    </tr>
                     <tr>
                       <th scope="row">5.9.16</th>
                       <td>2021-12-05</td>
diff --git a/docs/index.html b/docs/index.html
index 849d2e2..651b383 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -170,7 +170,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span>&nbsp;</div>
-      <div class="version">New Version: <span id="version">5.9.16</span></div>
+      <div class="version">New Version: <span id="version">5.9.17</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
diff --git a/lib/wifi.js b/lib/wifi.js
index bdc5465..742c317 100644
--- a/lib/wifi.js
+++ b/lib/wifi.js
@@ -341,46 +341,48 @@ function getWifiNetworkListIw(iface) {
 */
 function parseWifiDarwin(wifiObj) {
   const result = [];
-  wifiObj.forEach(function (wifiItem) {
-    const signalLevel = wifiItem.RSSI;
-    let security = [];
-    let wpaFlags = [];
-    if (wifiItem.WPA_IE) {
-      security.push('WPA');
-      if (wifiItem.WPA_IE.IE_KEY_WPA_UCIPHERS) {
-        wifiItem.WPA_IE.IE_KEY_WPA_UCIPHERS.forEach(function (ciphers) {
-          if (ciphers === 0 && wpaFlags.indexOf('unknown/TKIP') === -1) { wpaFlags.push('unknown/TKIP'); }
-          if (ciphers === 2 && wpaFlags.indexOf('PSK/TKIP') === -1) { wpaFlags.push('PSK/TKIP'); }
-          if (ciphers === 4 && wpaFlags.indexOf('PSK/AES') === -1) { wpaFlags.push('PSK/AES'); }
-        });
+  if (wifiObj) {
+    wifiObj.forEach(function (wifiItem) {
+      const signalLevel = wifiItem.RSSI;
+      let security = [];
+      let wpaFlags = [];
+      if (wifiItem.WPA_IE) {
+        security.push('WPA');
+        if (wifiItem.WPA_IE.IE_KEY_WPA_UCIPHERS) {
+          wifiItem.WPA_IE.IE_KEY_WPA_UCIPHERS.forEach(function (ciphers) {
+            if (ciphers === 0 && wpaFlags.indexOf('unknown/TKIP') === -1) { wpaFlags.push('unknown/TKIP'); }
+            if (ciphers === 2 && wpaFlags.indexOf('PSK/TKIP') === -1) { wpaFlags.push('PSK/TKIP'); }
+            if (ciphers === 4 && wpaFlags.indexOf('PSK/AES') === -1) { wpaFlags.push('PSK/AES'); }
+          });
+        }
       }
-    }
-    if (wifiItem.RSN_IE) {
-      security.push('WPA2');
-      if (wifiItem.RSN_IE.IE_KEY_RSN_UCIPHERS) {
-        wifiItem.RSN_IE.IE_KEY_RSN_UCIPHERS.forEach(function (ciphers) {
-          if (ciphers === 0 && wpaFlags.indexOf('unknown/TKIP') === -1) { wpaFlags.push('unknown/TKIP'); }
-          if (ciphers === 2 && wpaFlags.indexOf('TKIP/TKIP') === -1) { wpaFlags.push('TKIP/TKIP'); }
-          if (ciphers === 4 && wpaFlags.indexOf('PSK/AES') === -1) { wpaFlags.push('PSK/AES'); }
-        });
+      if (wifiItem.RSN_IE) {
+        security.push('WPA2');
+        if (wifiItem.RSN_IE.IE_KEY_RSN_UCIPHERS) {
+          wifiItem.RSN_IE.IE_KEY_RSN_UCIPHERS.forEach(function (ciphers) {
+            if (ciphers === 0 && wpaFlags.indexOf('unknown/TKIP') === -1) { wpaFlags.push('unknown/TKIP'); }
+            if (ciphers === 2 && wpaFlags.indexOf('TKIP/TKIP') === -1) { wpaFlags.push('TKIP/TKIP'); }
+            if (ciphers === 4 && wpaFlags.indexOf('PSK/AES') === -1) { wpaFlags.push('PSK/AES'); }
+          });
+        }
       }
-    }
-    result.push({
-      ssid: wifiItem.SSID_STR,
-      bssid: wifiItem.BSSID,
-      mode: '',
-      channel: wifiItem.CHANNEL,
-      frequency: wifiFrequencyFromChannel(wifiItem.CHANNEL),
-      signalLevel: signalLevel ? parseInt(signalLevel, 10) : null,
-      quality: wifiQualityFromDB(signalLevel),
-      security,
-      wpaFlags,
-      rsnFlags: []
+      result.push({
+        ssid: wifiItem.SSID_STR,
+        bssid: wifiItem.BSSID,
+        mode: '',
+        channel: wifiItem.CHANNEL,
+        frequency: wifiFrequencyFromChannel(wifiItem.CHANNEL),
+        signalLevel: signalLevel ? parseInt(signalLevel, 10) : null,
+        quality: wifiQualityFromDB(signalLevel),
+        security,
+        wpaFlags,
+        rsnFlags: []
+
+      });
+      wifiItem.BSSID;
 
     });
-    wifiItem.BSSID;
-
-  });
+  }
   return result;
 }
 function wifiNetworks(callback) {