From 45354db0679f436a48d1c855564ece885e34f5f0 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 16 Jun 2023 15:05:26 +0200
Subject: Fix reading supported authentication schemes

---
 src/main/java/de/bwlehrpool/bwlp_guac/VncConnection.java | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main/java/de/bwlehrpool/bwlp_guac/VncConnection.java b/src/main/java/de/bwlehrpool/bwlp_guac/VncConnection.java
index d1ac1ad..5b252df 100644
--- a/src/main/java/de/bwlehrpool/bwlp_guac/VncConnection.java
+++ b/src/main/java/de/bwlehrpool/bwlp_guac/VncConnection.java
@@ -54,8 +54,7 @@ public class VncConnection implements Closeable {
 		boolean ok = false;
 		for (int i = 0; i < numTypes; ++i) {
 			if (in.read() == 2) {
-				ok = true;
-				break; // Found "VNC Authentication"
+				ok = true; // Found "VNC Authentication"
 			}
 		}
 		if (!ok) {
@@ -65,8 +64,9 @@ public class VncConnection implements Closeable {
 		out.write(2); // Pick passwd auth
 		// Get challenge data
 		byte[] challenge = new byte[16];
-		int ret = in.read(challenge);
-		if (ret != 16) {
+		try {
+			in.readFully(challenge);
+		} catch (Exception e) {
 			LOGGER.info("Didn't receive challenge from VNC server @ " + sock.getRemoteSocketAddress());
 			return false;
 		}
-- 
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