You can test if backend defines are set, like so:
#ifdef LIBSSH2_OPENSSL
//enabled
#endif
#ifdef LIBSSH2_LIBGCRYPT
//enabled
#endif
Will
> On Nov 19, 2021, at 7:41 AM, Bastien Durel via libssh2-devel
> <libssh2-devel@lists.haxx.se> wrote:
>
> Hello,
>
> Is there a way to say during runtime (or maybe at compile time) which
> crypto engine is backing libssh2 ?
>
> The code I wrote uses libssh2_userauth_publickey_frommemory, which
> fails with LIBSSH2_ERROR_PUBLICKEY_UNVERIFIED / "Callback returned
> error" when the crypto engine is not OpenSSL.
> I'd like to know if I have to write key material to temporary files
>
> Debian version of libssh2 is built against libgcrypt20 but arch's
> version is built against openssl, which confused me a lot :/
>
> Thanks,
>
> --
> Bastien Durel
> DATA
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>
> bastien.du...@data.fr
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