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X-From-Line:	nobody Wed Nov 10 10:37:42 1999
To:	Cygwin Mailing List <cygwin AT sourceware DOT cygnus DOT com>
Subject:	Re: strchr bug?
References:	<upuxjq1tj DOT fsf AT 1c DOT ru> <199911092106 DOT QAA04200 AT rtl DOT cygnus DOT com>
From:	Vadim Egorov <egorovv AT 1c DOT ru>
Date:	10 Nov 1999 10:37:39 +0300
In-Reply-To:	Chris Faylor's message of "Tue, 9 Nov 1999 16:06:31 -0500"
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X-Gnus-Article-Number:	21 Wed Nov 10 10:37:42 1999
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Sorry for repost - pgnus glitch.
Tor Lillqvist <tml AT iki DOT fi> writes:
> Vadim Egorov writes:
>  > While porting ElectricFence to cygwin I encountered a problem
> 
> Great! Would it be possible to have a copy? (Luckily I got your
> message, as I earlier today was thinking of porting it to Win32
> myself...) (I assume your port doesn't rely on cygwin features, but
> would work as well on "mingw32".)
> 
Chris Faylor <cgf AT cygnus DOT com> writes:
> Thanks for the bug report and especially for the test case.  I've
> forwarded this to our newlib development team and they've come up
> with a fix.  It is below.
> 
> 
Thanks, Chris. Now it works. 
For those who is interested I apply a patch for ElectricFence-2.1 
(from ftp://ftp.perens.com/pub/ElectricFence/)
The main idea was to replace mmap/mprotect calls with native
VirtualAlloc/VirualProtect because cygwin mmap calls 
malloc internally. 
By now it builds and seems to work for cygwin target -- don't
know about mingw32 (but for consistency sake it should also provide
strdup and company) -- with two limitations.
There is long lasting problem with win32 SEH and signals 
which causes eftest to hang - it's okay.
Next, without strchr patch posted by Chris Faylor to this thread
it quite useless - apps linked against it tend to crash at startup.

Any comments will be appreciated.
 
Regards,
Vadim Egorov 

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