diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/DefiniteLengthInputStream.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/DefiniteLengthInputStream.java | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/DefiniteLengthInputStream.java b/core/src/main/java/org/bouncycastle/asn1/DefiniteLengthInputStream.java deleted file mode 100644 index 37851748..00000000 --- a/core/src/main/java/org/bouncycastle/asn1/DefiniteLengthInputStream.java +++ /dev/null @@ -1,105 +0,0 @@ -package org.bouncycastle.asn1; - -import java.io.EOFException; -import java.io.IOException; -import java.io.InputStream; - -import org.bouncycastle.util.io.Streams; - -class DefiniteLengthInputStream - extends LimitedInputStream -{ - private static final byte[] EMPTY_BYTES = new byte[0]; - - private final int _originalLength; - private int _remaining; - - DefiniteLengthInputStream( - InputStream in, - int length) - { - super(in, length); - - if (length < 0) - { - throw new IllegalArgumentException("negative lengths not allowed"); - } - - this._originalLength = length; - this._remaining = length; - - if (length == 0) - { - setParentEofDetect(true); - } - } - - int getRemaining() - { - return _remaining; - } - - public int read() - throws IOException - { - if (_remaining == 0) - { - return -1; - } - - int b = _in.read(); - - if (b < 0) - { - throw new EOFException("DEF length " + _originalLength + " object truncated by " + _remaining); - } - - if (--_remaining == 0) - { - setParentEofDetect(true); - } - - return b; - } - - public int read(byte[] buf, int off, int len) - throws IOException - { - if (_remaining == 0) - { - return -1; - } - - int toRead = Math.min(len, _remaining); - int numRead = _in.read(buf, off, toRead); - - if (numRead < 0) - { - throw new EOFException("DEF length " + _originalLength + " object truncated by " + _remaining); - } - - if ((_remaining -= numRead) == 0) - { - setParentEofDetect(true); - } - - return numRead; - } - - byte[] toByteArray() - throws IOException - { - if (_remaining == 0) - { - return EMPTY_BYTES; - } - - byte[] bytes = new byte[_remaining]; - if ((_remaining -= Streams.readFully(_in, bytes)) != 0) - { - throw new EOFException("DEF length " + _originalLength + " object truncated by " + _remaining); - } - setParentEofDetect(true); - return bytes; - } -} |