int BIO_meth_set_write_ex(BIO_METHOD *biom,
int (*bwrite)(BIO *, const char *, size_t, size_t *));
int BIO_meth_set_write(BIO_METHOD *biom,
int (*write)(BIO *, const char *, int));
int BIO_meth_set_write_ex(BIO_METHOD *biom,
int (*bwrite)(BIO *, const char *, size_t, size_t *));
int BIO_meth_set_write(BIO_METHOD *biom,
int (*write)(BIO *, const char *, int));