= 0; $i--) {
array_unshift($stream, $bytes[$i]);
}
}
/**
* Reads a single byte from the given stream.
*
* @param arrayref &$stream the stream to read from
* @return int single byte
*/
protected function readByte(&$stream) {
$bytes = $this->readBytes($stream, 1);
return array_shift($bytes);
}
/**
* Reads multiple bytes from the given stream.
*
* @throws GTException
* @param arrayref &$stream the stream to read from
* @param int $limit number of bytes to read
* @return array byte array containing the bytes read from stream
*/
protected function readBytes(&$stream, $limit) {
if (!is_array($stream)) {
throw new GTException("parameter stream must be an array of bytes");
}
if (count($stream) < $limit) {
throw new GTException("not enough bytes, tried to read {$limit}, but only " . count($stream) . " remaining");
}
$bytes = array();
for ($i = 0; $i < $limit; $i++) {
array_push($bytes, array_shift($stream));
}
return $bytes;
}
/**
* Sets the tag class for this ASN1 Object.
*
* Valid values are:
*
* ASN1_TAG_CONEXT
* ASN1_TAG_PRIVATE
* ASN1_TAG_UNIVERSAL
* ASN1_TAG_APPLICATION
*
*
* @param $tagClass the tag class to set
* @return void
*/
public function setTagClass($tagClass) {
$this->tagClass = $tagClass;
}
/**
* Gets the tag class for this ASN1 Object.
*
* @return string the tag class
*/
public function getTagClass() {
return $this->tagClass;
}
/**
* Sets the tag type for this ASN1 Object.
*
* Valid values are:
*
* ASN1_TAG_PRIMITIVE
* ASN1_TAG_CONSTRUCTED
*
*
* @param $tagType the tag type to set
* @return void
*/
public function setTagType($tagType) {
$this->tagType = $tagType;
}
/**
* Gets the tag value for this ASN1 Object.
*
* @return string the tag type
*/
public function getTagType() {
return $this->tagType;
}
/**
* Sets the tag value for this ASN1 Object.
*
* @param int $tagValue the tag value
* @return void
*/
public function setTagValue($tagValue) {
$this->tagValue = $tagValue;
}
/**
* Gets the tag value for this ASN1 Object.
*
* @return int the tag value
*/
public function getTagValue() {
return $this->tagValue;
}
}
?>