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Fixed a possible integer overflow in GetAbsTime()

This commit is contained in:
Klaus Schmidinger 2008-09-06 09:34:49 +02:00
parent de67eacbda
commit da3939cb10
3 changed files with 10 additions and 7 deletions
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1
CONTRIBUTORS
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@ -1895,6 +1895,7 @@ Alexander Rieger <Alexander.Rieger@inka.de>
for fixing cTimer::operator=() in case a cTimer variable is assigned to itself
for making the list of tracks given in cStatus::SetAudioTrack() NULL terminated
for fixing handling kLeft in the calls to cStatus::MsgOsdTextItem()
for fixing a possible integer overflow in GetAbsTime()
Philip Prindeville <philipp_subx@redfish-solutions.com>
for updates to 'sources.conf'

3
HISTORY
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@ -5741,7 +5741,7 @@ Video Disk Recorder Revision History
- Increased the time between checking the CAM status to 500ms to avoid problems
with some CAMs (reported by Arthur Konovalov).
2008-08-16: Version 1.6.0-2
2008-09-06: Version 1.6.0-2
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- The SVDRP signon message now indicates the character encoding in use, as in
@ -5751,3 +5751,4 @@ Video Disk Recorder Revision History
- No longer calling FcFini() to avoid problems with older (broken) versions of
fontconfig (suggested by Edgar Toernig).
- Updated the sources.conf file (thanks to Oleg Roitburd).
- Fixed a possible integer overflow in GetAbsTime() (thanks to Alexander Rieger).

13
thread.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: thread.c 1.64 2008/02/15 14:17:42 kls Exp $
* $Id: thread.c 1.64.1.1 2008/08/16 11:00:40 kls Exp $
*/
#include "thread.h"
@ -24,11 +24,12 @@ static bool GetAbsTime(struct timespec *Abstime, int MillisecondsFromNow)
{
struct timeval now;
if (gettimeofday(&now, NULL) == 0) { // get current time
now.tv_usec += MillisecondsFromNow * 1000; // add the timeout
while (now.tv_usec >= 1000000) { // take care of an overflow
now.tv_sec++;
now.tv_usec -= 1000000;
}
now.tv_sec += MillisecondsFromNow / 1000; // add full seconds
now.tv_usec += (MillisecondsFromNow % 1000) * 1000; // add microseconds
if (now.tv_usec >= 1000000) { // take care of an overflow
now.tv_sec++;
now.tv_usec -= 1000000;
}
Abstime->tv_sec = now.tv_sec; // seconds
Abstime->tv_nsec = now.tv_usec * 1000; // nano seconds
return true;