Initial import of old CVS repository
1 files changed, 68 insertions, 0 deletions
diff --git a/crypto/src/bcpg/attr/ImageAttrib.cs b/crypto/src/bcpg/attr/ImageAttrib.cs
new file mode 100644
index 000000000..73490791c
--- /dev/null
+++ b/crypto/src/bcpg/attr/ImageAttrib.cs
@@ -0,0 +1,68 @@
+using System;
+using System.IO;
+
+namespace Org.BouncyCastle.Bcpg.Attr
+{
+ /// <remarks>Basic type for a image attribute packet.</remarks>
+ public class ImageAttrib
+ : UserAttributeSubpacket
+ {
+ public enum Format : byte
+ {
+ Jpeg = 1
+ }
+
+ private static readonly byte[] Zeroes = new byte[12];
+
+ private int hdrLength;
+ private int _version;
+ private int _encoding;
+ private byte[] imageData;
+
+ public ImageAttrib(
+ byte[] data)
+ : base(UserAttributeSubpacketTag.ImageAttribute, data)
+ {
+ hdrLength = ((data[1] & 0xff) << 8) | (data[0] & 0xff);
+ _version = data[2] & 0xff;
+ _encoding = data[3] & 0xff;
+
+ imageData = new byte[data.Length - hdrLength];
+ Array.Copy(data, hdrLength, imageData, 0, imageData.Length);
+ }
+
+ public ImageAttrib(
+ Format imageType,
+ byte[] imageData)
+ : this(ToByteArray(imageType, imageData))
+ {
+ }
+
+ private static byte[] ToByteArray(
+ Format imageType,
+ byte[] imageData)
+ {
+ MemoryStream bOut = new MemoryStream();
+ bOut.WriteByte(0x10); bOut.WriteByte(0x00); bOut.WriteByte(0x01);
+ bOut.WriteByte((byte) imageType);
+ bOut.Write(Zeroes, 0, Zeroes.Length);
+ bOut.Write(imageData, 0, imageData.Length);
+ return bOut.ToArray();
+ }
+
+ public int Version
+ {
+ get { return _version; }
+ }
+
+ public int Encoding
+ {
+ get { return _encoding; }
+ }
+
+ public byte[] GetImageData()
+ {
+ return imageData;
+ }
+ }
+}
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