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Throw in Buffer when there is not enough data to unpack

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This commit is contained in:
Pavel Djundik
2015-10-21 23:54:14 +03:00
parent 5ab3873256
commit af50a4a33a
1 changed files with 24 additions and 0 deletions
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SourceQuery/Buffer.php
+24
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@@ -12,10 +12,14 @@
namespace xPaw\SourceQuery; namespace xPaw\SourceQuery;
use xPaw\SourceQuery\Exception\InvalidPacketException;
/** /**
* Class Buffer * Class Buffer
* *
* @package xPaw\SourceQuery * @package xPaw\SourceQuery
*
* @uses xPaw\SourceQuery\Exception\InvalidPacketException
*/ */
class Buffer class Buffer
{ {
@@ -121,6 +125,11 @@
*/ */
public function GetShort( ) public function GetShort( )
{ {
if( $this->Remaining( ) < 2 )
{
throw new InvalidPacketException( 'Not enough data to unpack a short.', InvalidPacketException::BUFFER_EMPTY );
}
$Data = UnPack( 'v', $this->Get( 2 ) ); $Data = UnPack( 'v', $this->Get( 2 ) );
return $Data[ 1 ]; return $Data[ 1 ];
@@ -133,6 +142,11 @@
*/ */
public function GetLong( ) public function GetLong( )
{ {
if( $this->Remaining( ) < 4 )
{
throw new InvalidPacketException( 'Not enough data to unpack a long.', InvalidPacketException::BUFFER_EMPTY );
}
$Data = UnPack( 'l', $this->Get( 4 ) ); $Data = UnPack( 'l', $this->Get( 4 ) );
return $Data[ 1 ]; return $Data[ 1 ];
@@ -145,6 +159,11 @@
*/ */
public function GetFloat( ) public function GetFloat( )
{ {
if( $this->Remaining( ) < 4 )
{
throw new InvalidPacketException( 'Not enough data to unpack a float.', InvalidPacketException::BUFFER_EMPTY );
}
$Data = UnPack( 'f', $this->Get( 4 ) ); $Data = UnPack( 'f', $this->Get( 4 ) );
return $Data[ 1 ]; return $Data[ 1 ];
@@ -157,6 +176,11 @@
*/ */
public function GetUnsignedLong( ) public function GetUnsignedLong( )
{ {
if( $this->Remaining( ) < 4 )
{
throw new InvalidPacketException( 'Not enough data to unpack an usigned long.', InvalidPacketException::BUFFER_EMPTY );
}
$Data = UnPack( 'V', $this->Get( 4 ) ); $Data = UnPack( 'V', $this->Get( 4 ) );
return $Data[ 1 ]; return $Data[ 1 ];