Add net5.0 target.

Author: bgrainger

src/MySqlConnector/Core/ServerSession.cs

@@ -1023,7 +1023,7 @@ private async Task<bool> OpenNamedPipeAsync(ConnectionSettings cs, int startTick
 #else
 			if (Log.IsInfoEnabled())
 				Log.Info("Session{0} connecting to NamedPipe '{1}' on Server '{2}'", m_logArguments[0], cs.PipeName, cs.HostNames![0]);
-			var namedPipeStream = new NamedPipeClientStream(cs.HostNames![0], cs.PipeName, PipeDirection.InOut, PipeOptions.Asynchronous);
+			var namedPipeStream = new NamedPipeClientStream(cs.HostNames![0], cs.PipeName!, PipeDirection.InOut, PipeOptions.Asynchronous);
 			var timeout = Math.Max(1, cs.ConnectionTimeoutMilliseconds - unchecked(Environment.TickCount - startTickCount));
 			try
 			{
@@ -1274,14 +1274,14 @@ private async Task InitSslAsync(ProtocolCapabilities serverCapabilities, Connect
 				}
 			}
 
-			X509Certificate ValidateLocalCertificate(object lcbSender, string lcbTargetHost, X509CertificateCollection lcbLocalCertificates, X509Certificate lcbRemoteCertificate, string[] lcbAcceptableIssuers) => lcbLocalCertificates[0];
+			X509Certificate ValidateLocalCertificate(object lcbSender, string lcbTargetHost, X509CertificateCollection lcbLocalCertificates, X509Certificate? lcbRemoteCertificate, string[] lcbAcceptableIssuers) => lcbLocalCertificates[0];
 
-			bool ValidateRemoteCertificate(object rcbSender, X509Certificate rcbCertificate, X509Chain rcbChain, SslPolicyErrors rcbPolicyErrors)
+			bool ValidateRemoteCertificate(object rcbSender, X509Certificate? rcbCertificate, X509Chain? rcbChain, SslPolicyErrors rcbPolicyErrors)
 			{
 				if (cs.SslMode == MySqlSslMode.Preferred || cs.SslMode == MySqlSslMode.Required)
 					return true;
 
-				if ((rcbPolicyErrors & SslPolicyErrors.RemoteCertificateChainErrors) != 0 && caCertificateChain is not null)
+				if ((rcbPolicyErrors & SslPolicyErrors.RemoteCertificateChainErrors) != 0 && caCertificateChain is not null && rcbCertificate is not null)
 				{
 					if (caCertificateChain.Build((X509Certificate2) rcbCertificate) && caCertificateChain.ChainStatus.Length > 0)
 					{
@@ -1297,8 +1297,8 @@ bool ValidateRemoteCertificate(object rcbSender, X509Certificate rcbCertificate,
 				return rcbPolicyErrors == SslPolicyErrors.None;
 			}
 
-			var sslStream = clientCertificates is null ? new SslStream(m_stream, false, ValidateRemoteCertificate) :
-				new SslStream(m_stream, false, ValidateRemoteCertificate, ValidateLocalCertificate);
+			var sslStream = clientCertificates is null ? new SslStream(m_stream!, false, ValidateRemoteCertificate) :
+				new SslStream(m_stream!, false, ValidateRemoteCertificate, ValidateLocalCertificate);
 
 			var checkCertificateRevocation = cs.SslMode == MySqlSslMode.VerifyFull;
 

src/MySqlConnector/MySqlConnector.csproj

@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net45;net461;net471;netstandard1.3;netstandard2.0;netstandard2.1;netcoreapp2.1;netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>net45;net461;net471;netstandard1.3;netstandard2.0;netstandard2.1;netcoreapp2.1;netcoreapp3.0;net5.0</TargetFrameworks>
     <Title>Async MySQL ADO.NET Connector</Title>
     <Description>A truly async MySQL ADO.NET provider, supporting MySQL Server, MariaDB, Percona Server, Amazon Aurora, Azure Database for MySQL and more.</Description>
     <Copyright>Copyright 2016–2020 Bradley Grainger</Copyright>

src/MySqlConnector/Protocol/Serialization/CompressedPayloadHandler.cs

@@ -193,7 +193,7 @@ private ValueTask<int> CompressAndWrite(ArraySegment<byte> remainingUncompressed
 				compressedStream.WriteByte(0xDA);
 
 				using (var deflateStream = new DeflateStream(compressedStream, CompressionLevel.Optimal, leaveOpen: true))
-					deflateStream.Write(remainingUncompressedData.Array, remainingUncompressedData.Offset, remainingUncompressedBytes);
+					deflateStream.Write(remainingUncompressedData.Array!, remainingUncompressedData.Offset, remainingUncompressedBytes);
 
 				// write Adler-32 checksum to stream
 				var checksum = ComputeAdler32Checksum(remainingUncompressedData.Array!, remainingUncompressedData.Offset, remainingUncompressedBytes);