Hi!
Ralph Glasstetter wrote:
Just for completeness... there is another patch from Michael
(dvbcut-0.5.3-patch3.diff):
[PATCH] buffer overflow in mpgfile::initaudiocodeccontext() from 22-June-06:
http://sourceforge.net/mailarchive/forum.php?thread_id=14666934&forum_id=47012
So, there are 4 patches in total as far as I know... I still miss the patch2
file from Michael... but maybe this is the one from Sven concerning the
reading of program streams?
I'm not sure if I published patch2 yet. It fixes some overflows in
src/index.h. I'll attach a copy.
--
Michael "Tired" Riepe <[EMAIL PROTECTED]>
X-Tired: Each morning I get up I die a little
Index: dvbcut/src/index.h
===================================================================
RCS file: /var/cvs/sys/qt3/dvbcut/src/index.h,v
retrieving revision 1.1.1.3
diff -u -r1.1.1.3 index.h
--- dvbcut/src/index.h 11 Dec 2005 20:32:23 -0000 1.1.1.3
+++ dvbcut/src/index.h 23 Mar 2006 23:53:46 -0000
@@ -53,7 +53,7 @@
picture(filepos_t pos, pts_t _pts, int framerate, int aspectratio,
int sequencenumber, int picturetype, bool seqheader=false) :
position( pos ),
- pts((_pts&0xffffffffffffll) | ((uint64_t)(
(framerate&0xf)|((aspectratio&0xf)<<4)|
+ pts((_pts&0xffffffffffll) | ((uint64_t)(
(framerate&0xf)|((aspectratio&0xf)<<4)|
((sequencenumber&0x3ff)<<8)|((picturetype&0x3)<<18)|(seqheader?0x100000:0)
)<<40))
{ }
picture() : position(0), pts(0)
@@ -66,7 +66,7 @@
pts_t getpts() const
{
pts_t l=pts&0xffffffffffll;
- return (l&0x8000000000ll) ? (l|0xffffff0000000000ll):l;
+ return (l ^ 0x8000000000ll) - 0x8000000000ll;
}
int getframerate() const
{
@@ -136,10 +136,10 @@
{
pic+=skipfirst;
int seq=pic;
- while (!p[seq].getseqheader())
+ while (seq > 0 && !p[seq].getseqheader())
--seq;
pic=pic-seq;
- while(p[seq].getsequencenumber()!=pic)
+ while(seq < pictures && p[seq].getsequencenumber()!=pic)
++seq;
return seq;
}
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