> From: William A. Rowe Jr. > > On 4/13/2010 4:49 PM, 芦翔 wrote: > > Dear all, > > I am trying to add the security flavor to an > application. To achieve > > this objective, I wrote the codes to establish a security > tunnel between > > the server and the client with VC2008. When I build the > whole project, > > there are tens of similar errors. All of them are as follows: > > > >>SSLServer.obj : error LNK2019: unresolved external symbol _BIO_free > > referenced in function "int __cdecl > > SSL_CTX_use_PrivateKey_file_pass(struct ssl_ctx_st *,char *,char *)" > > (?SSL_CTX_use_PrivateKey_file_pass@@YAHPAUssl_ctx_st@@p...@z > > > <mailto:?SSL_CTX_use_PrivateKey_file_pass@@YAHPAUssl_ctx_st@@p...@z>) > > That signature is consistent with C++ argument folding. > > The openssl headers you've used probably were missing this decoration > > #ifdef __cplusplus > extern "C" { > #endif > > ... > > #ifdef __cplusplus > } > #endif > > So you should put your #include references in between the > snippets above > (in place of the ... elipses).
He's clearly calling then from C++, but the names it can't find don't look C++ decorated to me - _BIO_free looks like a normal Microsoft C reference. Isn't the problem here just that he's not linking against the OpenSSL libraries? ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org