WifiVendorHal: add a MAC string parsing helper function

This helper function parse a unquoted MAC address string into
a byte array.

Bug: 34740076
Test: compiles
Change-Id: Ie4a534d8e60a1c963464499eb7828edd83ace4b6

1 files changed, 14 insertions, 0 deletions

diff --git a/service/java/com/android/server/wifi/WifiVendorHal.java b/service/java/com/android/server/wifi/WifiVendorHal.java
index f2b209b33..cb4478095 100644
--- a/service/java/com/android/server/wifi/WifiVendorHal.java
+++ b/service/java/com/android/server/wifi/WifiVendorHal.java
@@ -511,6 +511,20 @@ public class WifiVendorHal {
         throw new UnsupportedOperationException();
     }
 
+    /**
+     * Helper function that parses unquoted MAC address string to a byte array
+     *
+     * @param macWithColons mac address string without double quotes
+     * @param mac an array of 6 bytes to receive the parsed mac address
+     */
+    private void parseUnquotedMacStrToByteArray(String macWithColons, byte[] mac) {
+        String[] macAddrStr = macWithColons.split(":");
+        for (int i = 0; i < 6; i++) {
+            Integer hexVal = Integer.parseInt(macAddrStr[i], 16);
+            mac[i] = hexVal.byteValue();
+        }
+    }
+
     StackTraceElement[] mTrace;
 
     private void kilroy() {