I'm trying to use the OpenSSL bindings from Deimos, but whenever I try to use the PEM_write_X509 function (among others), OpenSSL gives a fatal error of "no OPENSSL_Applink", because in OpenSSL's ms/uplink.c, the function OPENSSL_Uplink calls GetProcAddress on the application with the string "OPENSSL_Applink".

So far I've tried

Writing a D version of applink.c: I can't get dmd to export my OPENSSL_Applink without a leading underscore.
and
Recompiling OpenSSL without -DOPENSSL_ENABLE_APPLINK: Converting libraries to OMF gives me a series of errors in dmd that give the impression that the functions from io.h or a similar file are not visible. I can't get any compile to work.

From what I can tell, there are two possible solutions to my problem:

Export OPENSSL_Applink from my D program without a leading underscore.
or
Get a working compile of OpenSSL and then add an underscore in uplink.c before recompiling.

If anybody could help me with either of these (or suggest a third option) that would be fantastic.

On Sunday, 26 May 2013 at 00:38:23 UTC, Reid Levenick wrote:
> I'm trying to use the OpenSSL bindings from Deimos, but whenever I try to use the PEM_write_X509 function (among others), OpenSSL gives a fatal error of "no OPENSSL_Applink", because in OpenSSL's ms/uplink.c, the function OPENSSL_Uplink calls GetProcAddress on the application with the string "OPENSSL_Applink".
>
> So far I've tried
>
> Writing a D version of applink.c: I can't get dmd to export my OPENSSL_Applink without a leading underscore.
> and
> Recompiling OpenSSL without -DOPENSSL_ENABLE_APPLINK: Converting libraries to OMF gives me a series of errors in dmd that give the impression that the functions from io.h or a similar file are not visible. I can't get any compile to work.
>
> From what I can tell, there are two possible solutions to my problem:
>
> Export OPENSSL_Applink from my D program without a leading underscore.
> or
> Get a working compile of OpenSSL and then add an underscore in uplink.c before recompiling.
>
> If anybody could help me with either of these (or suggest a third option) that would be fantastic.

For posterity:

I got a compile of OpenSSL to work by configuring with "shared mingw", building, using dumpobj to get a list of exports from the dlls and making .defs for them, building a lib with the "lib" tool, and then converting that to OMF with coffimplib.

There's definitely an easier way about this that I haven't found...