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List:       openssl-users
Subject:    Re: using OpenSSL and NSS in same project
From:       sravan <sravan () atc ! tcs ! co ! in>
Date:       2005-01-18 11:51:30
Message-ID: 41ECF572.9030701 () atc ! tcs ! co ! in
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Hello all,
i too came across a similar problem.
although i could compile the entire application(which used OpenSSL & 
NSS), i got SEG faults while running the application.
the point where i get SEG faults is those functions which have same 
names in OpenSSL & NSS; in specific, SHA1_Update & MD5_Update.
i couldn't get around the problem and so, i have done the following :
        i have divided my entire application in to 2 parts; one that 
uses only NSS and the other that uses only OpenSSL
        both these sub-apps run independently and communicate via 
pipes/files :-(

although this is not an elegant solution, it worked fine. but there 
should be some work around.
expecting some guidance from the group.

Sravan

Aftab Alam wrote:

>Hi All,
>
>I am trying to use OpenSSL and NSS(Mozilla) toolkit in the same project.
>When I try to compile the project 
>It gives me an error 
>
>error C2733: second C linkage of overloaded function 'SHA1_Update' not
>allowed
>c:\open.tar\openssl_debug_updated\openssl-0.9.7e\inc32\openssl\sha.h(116) :
>see declaration of 'SHA1_Update'
>
>same is the error for MD5_Update and MD2_Update.
>
>Now I couldn't find some way to resolve this problem so I tried to rename
>the functions MD5_Update, MD2_Update and SHA1_Update in the whole openSSL
>source with
>MD5_UpdateA, MD2_UpdateA and SHA1_UpdateA.
>When I tried to build the dll then it gave me errors of some kind of
>exporting symbols so I tried to build static debug for this and it worked
>fine but the SHA1_Update still couldn't be resolved and is giving me the
>following error
>
> link /nologo /subsystem:console /machine:I386 /opt:ref /debug /out:out32
>.dbg\md2test.exe @E:\DOCUME~1\aftab\LOCALS~1\Temp\nma03100.
>libeay32.lib(m_sha1.obj) : error LNK2001: unresolved external symbol
>_SHA1_Updat
>eA
>out32.dbg\md2test.exe : fatal error LNK1120: 1 unresolved externals
>NMAKE : fatal error U1077: 'link' : return code '0x460'
>
>I want to know that is there any better way to resolve this issue, if I some
>how get successful in doing it the way I am then what problem can it cause
>afterwards.
>
>Regards,
>Muhammad Aftab 
>  
>


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