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Viewing changes to src/main/org/apache/tools/tar/TarUtils.java

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2008-09-30 14:47:45 UTC
  • mfrom: (1.2.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20080930144745-0x8uzivd9t15dua3
Tags: 1.7.1-0ubuntu1
* New upstream version (bug fix release).
  - mainly a bugfix release.
  - has extended support for Java6 features.
  - <script> now has support for JavaFX.
  - release notes: http://apache.linux-mirror.org/ant/README.html
* Remove debian/patches/05_ant-bug433444.patch. Obsoleted.

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src/main/org/apache/tools/tar/TarUtils.java
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 * This class provides static utility methods to work with byte streams.
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 *
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 */
 
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// CheckStyle:HideUtilityClassConstructorCheck OFF (bc)
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public class TarUtils {
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    private static final int BYTE_MASK = 255;
 
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    /**
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     * Parse an octal string from a header buffer. This is used for the
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     * file permission mode value.
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            }
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            stillPadding = false;
 
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            // CheckStyle:MagicNumber OFF
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            result = (result << 3) + (header[i] - '0');
 
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            // CheckStyle:MagicNumber ON
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        }
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        return result;
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            --idx;
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        } else {
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            for (long val = value; idx >= 0 && val > 0; --idx) {
 
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                // CheckStyle:MagicNumber OFF
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                buf[offset + idx] = (byte) ((byte) '0' + (byte) (val & 7));
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                val = val >> 3;
 
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                // CheckStyle:MagicNumber ON
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            }
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        }
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        long sum = 0;
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        for (int i = 0; i < buf.length; ++i) {
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            sum += 255 & buf[i];
 
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            sum += BYTE_MASK & buf[i];
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        }
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        return sum;