Re: Syntax errors in crypto.h

[Don Payette <payettedon@xxxxxxxxx>]

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

On Tue, Aug 15, 2023 at 9:01 AM Don Payette <payettedon@xxxxxxxxx> 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