ndn-cpp/encoding/BinaryXMLDecoder.c

/* 
 * Author: Jeff Thompson
 *
 * BSD license, See the LICENSE file for more information.
 */

#include "BinaryXML.h"
#include "BinaryXMLDecoder.h"

const char *ndn_BinaryXMLDecoder_decodeTypeAndValue(struct ndn_BinaryXMLDecoder *self, unsigned int *type, unsigned int *valueOut) {
  unsigned int value = 0;
  
	while (1) {
    if (self->offset >= self->inputLen)
      return "ndn_BinaryXMLDecoder_decodeTypeAndVal read past the end of the input";
    
		unsigned int octet = (unsigned int)(self->input[self->offset++] & 0xff);
		
		if (octet & ndn_BinaryXML_TT_FINAL) {
      // Finished.
			*type = octet & ndn_BinaryXML_TT_MASK;
			value = (value << ndn_BinaryXML_TT_VALUE_BITS) | ((octet >> ndn_BinaryXML_TT_BITS) & ndn_BinaryXML_TT_VALUE_MASK);
      break;
		}
		
    value = (value << ndn_BinaryXML_REGULAR_VALUE_BITS) | (octet & ndn_BinaryXML_REGULAR_VALUE_MASK);		
	}

	*valueOut = value;
  return (const char *)0;
}