BN_new/BN_init/BN_free

[Tom marchand]

Hi,

I am using the following code to create a temporary BIGNUM  to hold  
the result of multiplication:

BIGNUM  *Res;

while(!Done)
{
        Res=BN_new();
        BN_init(Res);

        BN_mul(Res,A,B,Ctx);

        BN_free();

}

This code works with the exception that BN_free() is not releasing the  
memory allocated to Res.  I already have a workaround but I am  
wondering why the memory isn't being released. In production the code  
runs for hours and is causing a significant memory leak.  I am I  
misusing BN_new and BN_free? The code is running on OSX 10.5.8,  
Openssl 0.9.7l.  I get the same result with OpenSSL 1.0.1e.

Thanks
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