check pointer overflow in t2.c

core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/jp2.c

 /*
  * The copyright in this software is being made available under the 2-clauses 
  * BSD License, included below. This software may be subject to other third 
  * party and contributor rights, including patent rights, and no such rights
  * are granted under this license.
  *
  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
  * Copyright (c) 2002-2014, Professor Benoit Macq
  * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
@@ skipping 1262 matching lines @@
                 {
                         opj_read_bytes(p_colr_header_data,&l_value,1);          /* icc values */
                         ++p_colr_header_data;
                         jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
                 }
             
         jp2->color.jp2_has_colr = 1;
         }
         else if (jp2->meth > 2)
     {
-        /*      ISO/IEC 15444-1:2004 (E), Table I.9 ­ Legal METH values:
+        /*      ISO/IEC 15444-1:2004 (E), Table I.9  Legal METH values:

[Tom Sepez, 2014/10/03 18:41:10]

nit: looks to be an unintended whitespace only change.

[Bo Xu, 2014/10/03 19:08:38]

I got the warning of "the file contains a character that cannot be represented
in the current code page (936)" when I compiled in VS2013. Seems there is the
char that brought in from the openjpeg update.

         conforming JP2 reader shall ignore the entire Colour Specification box.*/
         opj_event_msg(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), " 
             "so we will ignore the entire Colour Specification box. \n", jp2->meth);
     }
     return OPJ_TRUE;
 }
 
 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
                         opj_stream_private_t *p_stream,
                         opj_image_t* p_image,
@@ skipping 1485 matching lines @@
   len = opj_stream_tell(cio)-lenp;
   opj_stream_skip(cio, lenp, p_manager);
   opj_write_bytes(l_data_header,len,4);/* L              */
   opj_stream_write_data(cio,l_data_header,4,p_manager);
   opj_stream_seek(cio, lenp+len,p_manager);
 
   return len;
 }
 #endif
 #endif /* USE_JPIP */