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<div class="subTitle">org.apache.tools.tar</div>
<h2 title="Class TarUtils" class="title">Class TarUtils</h2>
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<li>java.lang.Object</li>
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<li>org.apache.tools.tar.TarUtils</li>
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<pre>public class <span class="strong">TarUtils</span>
extends java.lang.Object</pre>
<div class="block">This class provides static utility methods to work with byte streams.</div>
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<td class="colOne"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#TarUtils()">TarUtils</a></strong>()</code> </td>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#computeCheckSum(byte[])">computeCheckSum</a></strong>(byte[] buf)</code>
<div class="block">Compute the checksum of a tar entry header.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#getCheckSumOctalBytes(long, byte[], int, int)">getCheckSumOctalBytes</a></strong>(long value,
byte[] buf,
int offset,
int length)</code>
<div class="block">Parse the checksum octal integer from a header buffer.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#getLongOctalBytes(long, byte[], int, int)">getLongOctalBytes</a></strong>(long value,
byte[] buf,
int offset,
int length)</code>
<div class="block">Parse an octal long integer from a header buffer.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#getNameBytes(java.lang.StringBuffer, byte[], int, int)">getNameBytes</a></strong>(java.lang.StringBuffer name,
byte[] buf,
int offset,
int length)</code>
<div class="block">Determine the number of bytes in an entry name.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#getOctalBytes(long, byte[], int, int)">getOctalBytes</a></strong>(long value,
byte[] buf,
int offset,
int length)</code>
<div class="block">Parse an octal integer from a header buffer.</div>
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<td class="colFirst"><code>static java.lang.StringBuffer</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#parseName(byte[], int, int)">parseName</a></strong>(byte[] header,
int offset,
int length)</code>
<div class="block">Parse an entry name from a header buffer.</div>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/tools/tar/TarUtils.html#parseOctal(byte[], int, int)">parseOctal</a></strong>(byte[] header,
int offset,
int length)</code>
<div class="block">Parse an octal string from a header buffer.</div>
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<h4>TarUtils</h4>
<pre>public TarUtils()</pre>
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<h4>parseOctal</h4>
<pre>public static long parseOctal(byte[] header,
int offset,
int length)</pre>
<div class="block">Parse an octal string from a header buffer. This is used for the
file permission mode value.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>header</code> - The header buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The long value of the octal string.</dd></dl>
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<pre>public static java.lang.StringBuffer parseName(byte[] header,
int offset,
int length)</pre>
<div class="block">Parse an entry name from a header buffer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>header</code> - The header buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The header's entry name.</dd></dl>
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<pre>public static int getNameBytes(java.lang.StringBuffer name,
byte[] buf,
int offset,
int length)</pre>
<div class="block">Determine the number of bytes in an entry name.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - The header name from which to parse.</dd><dd><code>buf</code> - The buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The number of bytes in a header's entry name.</dd></dl>
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<h4>getOctalBytes</h4>
<pre>public static int getOctalBytes(long value,
byte[] buf,
int offset,
int length)</pre>
<div class="block">Parse an octal integer from a header buffer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The header value</dd><dd><code>buf</code> - The buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The integer value of the octal bytes.</dd></dl>
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<h4>getLongOctalBytes</h4>
<pre>public static int getLongOctalBytes(long value,
byte[] buf,
int offset,
int length)</pre>
<div class="block">Parse an octal long integer from a header buffer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The header value</dd><dd><code>buf</code> - The buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The long value of the octal bytes.</dd></dl>
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<pre>public static int getCheckSumOctalBytes(long value,
byte[] buf,
int offset,
int length)</pre>
<div class="block">Parse the checksum octal integer from a header buffer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The header value</dd><dd><code>buf</code> - The buffer from which to parse.</dd><dd><code>offset</code> - The offset into the buffer from which to parse.</dd><dd><code>length</code> - The number of header bytes to parse.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The integer value of the entry's checksum.</dd></dl>
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<pre>public static long computeCheckSum(byte[] buf)</pre>
<div class="block">Compute the checksum of a tar entry header.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>buf</code> - The tar entry's header buffer.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The computed checksum.</dd></dl>
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