2003-04-06 Michael Koch <konqueror@gmx.de>

	* java/io/FileInputStream.java
	(skip): Renamed some variables to match classpath, added
	checks from classpath.

From-SVN: r65300

1 files changed, 11 insertions, 4 deletions

diff --git a/libjava/java/io/FileInputStream.java b/libjava/java/io/FileInputStream.java
index 50abeaa..b49922e 100644
--- a/libjava/java/io/FileInputStream.java
+++ b/libjava/java/io/FileInputStream.java
@@ -268,11 +268,18 @@ public class FileInputStream extends InputStream
    *
    * @exception IOException If an error occurs
    */
-  public long skip(long n) throws IOException
+  public long skip (long numBytes) throws IOException
   {
-    long startPos = fd.getFilePointer();
-    long endPos = fd.seek(n, FileDescriptor.CUR, true);
-    return endPos - startPos;
+    if (numBytes < 0)
+      throw new IllegalArgumentException ( "Can't skip negative bytes: " +
+                                           numBytes);
+
+    if (numBytes == 0)
+      return 0;
+    
+    long curPos = fd.getFilePointer ();
+    long newPos = fd.seek (numBytes, FileDescriptor.CUR, true);
+    return newPos - curPos;
   }
 
   /**