CVSROOT: /sources/gnash
Module name: gnash
Changes by: Sandro Santilli <strk> 07/08/01 20:28:00
Modified files:
. : ChangeLog
server : stream.h
Log message:
* server/stream.h: add ensureBytes() method to verify
SWF integrity.
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/gnash/ChangeLog?cvsroot=gnash&r1=1.3902&r2=1.3903
http://cvs.savannah.gnu.org/viewcvs/gnash/server/stream.h?cvsroot=gnash&r1=1.20&r2=1.21
Patches:
Index: ChangeLog
===================================================================
RCS file: /sources/gnash/gnash/ChangeLog,v
retrieving revision 1.3902
retrieving revision 1.3903
diff -u -b -r1.3902 -r1.3903
--- ChangeLog 1 Aug 2007 18:57:02 -0000 1.3902
+++ ChangeLog 1 Aug 2007 20:28:00 -0000 1.3903
@@ -1,5 +1,10 @@
2007-08-01 Sandro Santilli <[EMAIL PROTECTED]>
+ * server/stream.h: add ensureBytes() method to verify
+ SWF integrity.
+
+2007-08-01 Sandro Santilli <[EMAIL PROTECTED]>
+
* server/swf/tag_loaders.cpp: (define_sound_loader) check if number of
samples exceed available bytes in the tag. (sound_expand) assertion
checking. (u8_expand) use a scoped_array in the easy case (we'll
Index: server/stream.h
===================================================================
RCS file: /sources/gnash/gnash/server/stream.h,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -b -r1.20 -r1.21
--- server/stream.h 15 May 2007 13:48:37 -0000 1.20
+++ server/stream.h 1 Aug 2007 20:28:00 -0000 1.21
@@ -12,6 +12,8 @@
#include "container.h"
#include "swf.h"
#include "tu_config.h"
+#include "GnashException.h"
+
#include <string>
class tu_file;
@@ -155,6 +157,22 @@
set_position(get_tag_end_position());
}
+ /// \brief
+ /// Ensure the requested number of bytes are available in the
+ /// currently opened tag.
+ //
+ /// Throws an exception on a short count.
+ /// This method should be called before any attempt to read
+ /// fields from the SWF.
+ ///
+ void ensureBytes(unsigned long needed)
+ {
+ if ( get_tag_end_position() - get_position() < needed )
+ {
+ throw ParserException("premature end of tag");
+ }
+ }
+
private:
// should this be long ?
unsigned _current_tag_length;
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