--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/ch/ethz/ssh2/channel/ChannelInputStream.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
+ * Please refer to the LICENSE.txt for licensing details.
+ */
+package ch.ethz.ssh2.channel;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * ChannelInputStream.
+ *
+ * @author Christian Plattner
+ * @version 2.50, 03/15/10
+ */
+public final class ChannelInputStream extends InputStream {
+    Channel c;
+
+    boolean isClosed = false;
+    boolean isEOF = false;
+    boolean extendedFlag = false;
+
+    ChannelInputStream(Channel c, boolean isExtended) {
+        this.c = c;
+        this.extendedFlag = isExtended;
+    }
+
+    @Override
+    public int available() throws IOException {
+        if (isEOF)
+            return 0;
+
+        int avail = c.cm.getAvailable(c, extendedFlag);
+        /* We must not return -1 on EOF */
+        return (avail > 0) ? avail : 0;
+    }
+
+    @Override
+    public void close() throws IOException {
+        isClosed = true;
+    }
+
+    @Override
+    public int read(byte[] b, int off, int len) throws IOException {
+        if (b == null)
+            throw new NullPointerException();
+
+        if ((off < 0) || (len < 0) || ((off + len) > b.length) || ((off + len) < 0) || (off > b.length))
+            throw new IndexOutOfBoundsException();
+
+        if (len == 0)
+            return 0;
+
+        if (isEOF)
+            return -1;
+
+        int ret = c.cm.getChannelData(c, extendedFlag, b, off, len);
+
+        if (ret == -1) {
+            isEOF = true;
+        }
+
+        return ret;
+    }
+
+    @Override
+    public int read(byte[] b) throws IOException {
+        return read(b, 0, b.length);
+    }
+
+    @Override
+    public int read() throws IOException {
+        /* Yes, this stream is pure and unbuffered, a single byte read() is slow */
+        final byte b[] = new byte[1];
+        int ret = read(b, 0, 1);
+
+        if (ret != 1)
+            return -1;
+
+        return b[0] & 0xff;
+    }
+}