int ssl_send(SSL *, char const *buffer, int size, char *errbuf, size_t errbuflen);
int ssl_recv(SSL *, char *buffer, int size, char *errbuf, size_t errbuflen);
int ssl_send(SSL *, char const *buffer, int size, char *errbuf, size_t errbuflen);
int ssl_recv(SSL *, char *buffer, int size, char *errbuf, size_t errbuflen);