Wifi (macOS): work around #581

src/detection/wifi/wifi_apple.m

@@ -1,4 +1,5 @@
 #include "wifi.h"
+#include "common/processing.h"
 
 #import <CoreWLAN/CoreWLAN.h>
 
@@ -33,6 +34,17 @@ const char* ffDetectWifi(FFlist* result)
 
         if (inf.ssid)
             ffStrbufAppendS(&item->conn.ssid, inf.ssid.UTF8String);
+        else if (!ffProcessAppendStdOut(&item->conn.ssid, (char* []) {
+            "/usr/sbin/networksetup",
+            "-getairportnetwork",
+            item->inf.description.chars,
+            NULL
+        }) && item->conn.ssid.length > 0)
+        {
+            uint32_t index = ffStrbufFirstIndexC(&item->conn.ssid, ':');
+            if (index < item->conn.ssid.length)
+                ffStrbufSubstrAfter(&item->conn.ssid, index + 1);
+        }
         else
             ffStrbufSetStatic(&item->conn.ssid, "<unknown ssid>"); // https://developer.apple.com/forums/thread/732431