summary refs log tree commit diff
path: root/crypto/src/asn1/DefiniteLengthInputStream.cs
diff options
context:
space:
mode:
authorPeter Dettman <peter.dettman@bouncycastle.org>2022-11-01 14:39:54 +0700
committerPeter Dettman <peter.dettman@bouncycastle.org>2022-11-01 14:39:54 +0700
commit716a491e3ed312da6c80a74e327d62dd4388b11e (patch)
tree0adabea28431857f372256233ddd4b2e0982190b /crypto/src/asn1/DefiniteLengthInputStream.cs
parentPackage with LICENSE.md file (diff)
downloadBouncyCastle.NET-ed25519-716a491e3ed312da6c80a74e327d62dd4388b11e.tar.xz
More Span-based Stream methods
Diffstat (limited to 'crypto/src/asn1/DefiniteLengthInputStream.cs')
-rw-r--r--crypto/src/asn1/DefiniteLengthInputStream.cs21
1 files changed, 21 insertions, 0 deletions
diff --git a/crypto/src/asn1/DefiniteLengthInputStream.cs b/crypto/src/asn1/DefiniteLengthInputStream.cs
index ed5bd2446..89f0d5a62 100644
--- a/crypto/src/asn1/DefiniteLengthInputStream.cs
+++ b/crypto/src/asn1/DefiniteLengthInputStream.cs
@@ -79,6 +79,27 @@ namespace Org.BouncyCastle.Asn1
             return numRead;
         }
 
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+        public override int Read(Span<byte> buffer)
+        {
+            if (_remaining == 0)
+                return 0;
+
+            int toRead = System.Math.Min(buffer.Length, _remaining);
+            int numRead = _in.Read(buffer[..toRead]);
+
+            if (numRead < 1)
+                throw new EndOfStreamException("DEF length " + _originalLength + " object truncated by " + _remaining);
+
+            if ((_remaining -= numRead) == 0)
+            {
+                SetParentEofDetect();
+            }
+
+            return numRead;
+        }
+#endif
+
         internal void ReadAllIntoByteArray(byte[] buf)
         {
             if (_remaining != buf.Length)