4 files changed, 16 insertions, 12 deletions
diff --git a/libjava/java/util/zip/GZIPInputStream.java b/libjava/java/util/zip/GZIPInputStream.java
index ec4613f..9eef73e 100644
--- a/libjava/java/util/zip/GZIPInputStream.java
+++ b/libjava/java/util/zip/GZIPInputStream.java
@@ -104,7 +104,7 @@ public class GZIPInputStream
   public GZIPInputStream(InputStream in)
     throws IOException
   {
-    this(in, 512);
+    this(in, 4096);
   }
 
   /**
diff --git a/libjava/java/util/zip/GZIPOutputStream.java b/libjava/java/util/zip/GZIPOutputStream.java
index 70339a0..4ec6cb1 100644
--- a/libjava/java/util/zip/GZIPOutputStream.java
+++ b/libjava/java/util/zip/GZIPOutputStream.java
@@ -69,7 +69,7 @@ public class GZIPOutputStream extends DeflaterOutputStream
    */
   public GZIPOutputStream(OutputStream out) throws IOException
   {
-    this(out, 512);
+    this(out, 4096);
   }
 
   /**
diff --git a/libjava/java/util/zip/Inflater.java b/libjava/java/util/zip/Inflater.java
index 28e89ea..5b6921a 100644
--- a/libjava/java/util/zip/Inflater.java
+++ b/libjava/java/util/zip/Inflater.java
@@ -251,7 +251,7 @@ public class Inflater
    * @param buffer the input.
    * @exception IllegalStateException if no input is needed.
    */
-  public void setInput (byte[] buf)
+  public void setInput (byte[] buf) 
   {
     setInput (buf, 0, buf.length);
   }
diff --git a/libjava/java/util/zip/InflaterInputStream.java b/libjava/java/util/zip/InflaterInputStream.java
index 60442e4..27c29ff 100644
--- a/libjava/java/util/zip/InflaterInputStream.java
+++ b/libjava/java/util/zip/InflaterInputStream.java
@@ -79,7 +79,7 @@ public class InflaterInputStream extends FilterInputStream
    */
   public InflaterInputStream(InputStream in) 
   {
-    this(in, new Inflater(), 512);
+    this(in, new Inflater(), 4096);
   }
 
   /**
@@ -91,7 +91,7 @@ public class InflaterInputStream extends FilterInputStream
    */
   public InflaterInputStream(InputStream in, Inflater inf) 
   {
-    this(in, inf, 512);
+    this(in, inf, 4096);
   }
 
   /**
@@ -149,8 +149,10 @@ public class InflaterInputStream extends FilterInputStream
     
     len = in.read(buf, 0, buf.length);
 
-    if (len != -1)
-      inf.setInput(buf, 0, len);
+    if (len < 0)
+      throw new ZipException("Deflated stream ends early.");
+    
+    inf.setInput(buf, 0, len);
   }
 
   /**
@@ -170,7 +172,7 @@ public class InflaterInputStream extends FilterInputStream
       return -1;
 
     int count = 0;
-    while (count == 0)
+    for (;;)
       {
 	if (inf.needsInput())
 	  fill();
@@ -193,8 +195,10 @@ public class InflaterInputStream extends FilterInputStream
 	  {
 	    throw new ZipException(dfe.getMessage());
 	  }
+
+	if (count > 0)
+	  return count;
       }
-    return count;
   }
 
   /**
@@ -212,18 +216,18 @@ public class InflaterInputStream extends FilterInputStream
     if (n == 0)
       return 0;
 
-    int buflen = (int) Math.min(n, 1024);
+    int buflen = (int) Math.min(n, 2048);
     byte[] tmpbuf = new byte[buflen];
 
     long skipped = 0L;
     while (n > 0L)
       {
 	int numread = read(tmpbuf, 0, buflen);
-	if (numread == -1)
+	if (numread <= 0)
 	  break;
 	n -= numread;
 	skipped += numread;
-	buflen = (int) Math.min(n, 1024);
+	buflen = (int) Math.min(n, 2048);
       }
 
     return skipped;