Log p2p_supplicant if parsing failed

mobile/src/main/java/be/mygod/vpnhotspot/net/wifi/P2pSupplicantConfiguration.kt

@@ -4,6 +4,7 @@ import android.net.wifi.p2p.WifiP2pGroup
 import android.os.Build
 import be.mygod.vpnhotspot.App.Companion.app
 import be.mygod.vpnhotspot.util.RootSession
+import timber.log.Timber
 import java.io.File
 
 /**
@@ -30,7 +31,7 @@ class P2pSupplicantConfiguration(private val group: WifiP2pGroup, ownerAddress:
         override fun toString() = joinToString("\n")
     }
 
-    private class Parser(lines: List<String>) {
+    private class Parser(val lines: List<String>) {
         private val iterator = lines.iterator()
         lateinit var line: String
         lateinit var trimmed: String
@@ -45,6 +46,7 @@ class P2pSupplicantConfiguration(private val group: WifiP2pGroup, ownerAddress:
             val result = ArrayList<Any>()
             var target: NetworkBlock? = null
             val parser = Parser(it.execOutUnjoined("cat $confPath"))
+            try {
                 while (parser.next()) {
                     if (parser.trimmed.startsWith("network={")) {
                         val block = NetworkBlock()
@@ -75,6 +77,11 @@ class P2pSupplicantConfiguration(private val group: WifiP2pGroup, ownerAddress:
                     } else result.add(parser.line)
                 }
                 Pair(result, target!!)
+            } catch (e: RuntimeException) {
+                Timber.w("Failed to parse p2p_supplicant.conf, ownerAddress: $ownerAddress, P2P group: $group")
+                Timber.w(parser.lines.joinToString("\n"))
+                throw e
+            }
         }
     }
     val ssid = group.networkName