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Date: Fri, 5 Nov 2004 11:40:12 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Binary read on textmode mount
Message-ID: <20041105164012.GJ18823@trixie.casa.cgf.cx>
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References: <Pine DOT CYG DOT 4 DOT 58 DOT 0411051050240 DOT 3688 AT Crunch DOT bcgssbd DOT sciatl DOT com>
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On Fri, Nov 05, 2004 at 11:26:31AM -0500, Shaffer, Kenneth wrote:
>I have a program doing a binary read on a file which happens to exist on a
>textmode mount and find that once a ctrl-Z (0x1a) byte is read, it doesn't
>read the rest of the file since ctrl-Z is a DOS EOF.
>
>The program is compiled with -mno-cygwin and adds no additional libraries
>on the compile line. cygcheck on the executable show:
>
>Found: .\corinfo.exe
>Found:
>e:\projects\RebootAnalysisTools\LogAnalysisTools\LogAnalysisTools\corinfo.exe
>corinfo.exe
>  C:\WINNT\system32\msvcrt.dll
>    C:\WINNT\system32\KERNEL32.dll
>      C:\WINNT\system32\NTDLL.DLL
>
>Anyway, wondering if the stopping on EOF even though performing a binary
>read on a file existing on a textmode mount is normal behaviour.
>
>Should I change all my mounts to binary?  If so, what problems might
>arise?  I've been burned in the past with mount modes and would suggest
>that the FAQ maintainer write something up about it.

Why would you expect a windows (-mno-cygwin) program to be cognizant of
cygwin mounts?  If you are having problems with reading data in a purely
windows program then cygwin is not involved in any way.

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