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Date: | Thu, 13 May 2010 11:12:49 -0700 |
From: | Dale Stimson <cygwin-dale AT riyescott DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Reading /proc/registry/... returns extra char |
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Reading a file under /proc/registry returns an extra character at the end, which appears to be the null character. This has happened for every registry entry that I have tried. Here is one in particular: -------------------------------- $ cat >a.dat /proc/registry/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/SystemBootDevice $ od -c a.dat 0000000 m u l t i ( 0 ) d i s k ( 0 ) r 0000020 d i s k ( 0 ) p a r t i t i o n 0000040 ( 2 ) \0 -------------------------------- or even $ vim /proc/registry/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/SystemBootDevice which shows its buffer (with "^@" representing the null character) as: multi(0)disk(0)rdisk(0)partition(2)^@ This problem was first observed after I recently upgraded to cygwin 1.7.5-1. The problem still occurs if /bin/cygwin1-20100507.dll is dropped in as /bin/cygwin1.dll. Perhaps this problem was introduced by the recent fix which was noted by: > From: Corinna Vinschen > To: cygwin at cygwin dot com > Date: Wed, 5 May 2010 11:38:49 +0200 > Subject: Re: reading /proc/registry/ causes Segmentation fault. > ... > There was a buffer overflow in wide character string allocation which > broke /proc/registry access. It has been fixed one day after releasing > Cygwin 1.7.5. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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