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java.lang.Object | +--org.apache.tools.tar.TarUtils
This class provides static utility methods to work with byte streams.
Constructor Summary | |
TarUtils()
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Method Summary | |
static long |
computeCheckSum(byte[] buf)
Compute the checksum of a tar entry header. |
static int |
getCheckSumOctalBytes(long value,
byte[] buf,
int offset,
int length)
Parse the checksum octal integer from a header buffer. |
static int |
getLongOctalBytes(long value,
byte[] buf,
int offset,
int length)
Parse an octal long integer from a header buffer. |
static int |
getNameBytes(java.lang.StringBuffer name,
byte[] buf,
int offset,
int length)
Determine the number of bytes in an entry name. |
static int |
getOctalBytes(long value,
byte[] buf,
int offset,
int length)
Parse an octal integer from a header buffer. |
static java.lang.StringBuffer |
parseName(byte[] header,
int offset,
int length)
Parse an entry name from a header buffer. |
static long |
parseOctal(byte[] header,
int offset,
int length)
Parse an octal string from a header buffer. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public TarUtils()
Method Detail |
public static long parseOctal(byte[] header, int offset, int length)
header
- The header buffer from which to parse.offset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static java.lang.StringBuffer parseName(byte[] header, int offset, int length)
header
- The header buffer from which to parse.offset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static int getNameBytes(java.lang.StringBuffer name, byte[] buf, int offset, int length)
name
- The header name from which to parse.offset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static int getOctalBytes(long value, byte[] buf, int offset, int length)
value
- The header valueoffset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static int getLongOctalBytes(long value, byte[] buf, int offset, int length)
value
- The header valueoffset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static int getCheckSumOctalBytes(long value, byte[] buf, int offset, int length)
value
- The header valueoffset
- The offset into the buffer from which to parse.length
- The number of header bytes to parse.
public static long computeCheckSum(byte[] buf)
buf
- The tar entry's header buffer.
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