Syntax errors in crypto.h

[Don Payette]

Well, I did some experimenting. I changed
OSSL_CRYPTO_ALLOC void *CRYPTO_malloc(size_t num, const char *file, int
line);

to

void *CRYPTO_malloc(size_t num, const char *file, int line);

And it compiled. I tried changing the OSSL_CRYPTO_ALLOC define to define it
as blank. But that still gets a syntax
error saying it expects a ";" before the "void *". That seems odd to me.


Don Payette
(cell) 479-216-6320 <(479)%20216-6320>


On Tue, Aug 15, 2023 at 9:01 AM Don Payette <payettedon at gmail.com> wrote:

> I'm converting an existing Winsock app to have encryption by using OpenSSL.
> I'm getting syntax errors attempting to compile my app. My environment is
> Microsoft Visual C++.
> I downloaded and installed the OpenSSL pre-compiled binaries and added the
> following to the Include Directories.
>
>    C:\Program Files\OpenSSL-Win64\includes
>
> In my existing Socket.cpp file I added OpenSSL includes:
>
> #include <stdio.h>
> #include <string.h>
> #include <openssl/bio.h>
> #include <openssl/ssl.h>
> #include <openssl/err.h>
> #include <signal.h>
>
>
>
> Severity Code                Description
>                                                  Project File
>
>                Line
>
> Error (active) E0077 this declaration has no storage class or type
> specifier DFDS C:\Program Files\OpenSSL-Win64\include\openssl\crypto.h 344
> Error (active) E0065 expected a ';'
>   DFDS C:\Program Files\OpenSSL-Win64\include\openssl\crypto.h 344
> OSSL_CRYPTO_ALLOC void *CRYPTO_malloc(size_t num, const char *file, int
> line);
>
> The definition of OSSL_CRYPTO_ALLOC is in macros.h:
>
> # ifndef OSSL_CRYPTO_ALLOC
> #  if defined(__GNUC__)
> #   define OSSL_CRYPTO_ALLOC __attribute__((malloc))
> #  elif defined(_MSC_VER)
> #   define OSSL_CRYPTO_ALLOC __declspec(restrict)
> #  else
> #   define OSSL_CRYPTO_ALLOC
> #  endif
> # endif
>
>
> I figure it is using the _MSC_VER define, which is the __declspec one.
>
> Any ideas what it is complaining about?
>
> Don Payette
> (cell) 479-216-6320 <(479)%20216-6320>
>
>
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