to_der()
public
Converts the name to DER encoding
static VALUE
ossl_x509name_to_der(VALUE self)
{
X509_NAME *name;
VALUE str;
long len;
unsigned char *p;
GetX509Name(self, name);
if((len = i2d_X509_NAME(name, NULL)) <= 0)
ossl_raise(eX509NameError, NULL);
str = rb_str_new(0, len);
p = (unsigned char *)RSTRING_PTR(str);
if(i2d_X509_NAME(name, &p) <= 0)
ossl_raise(eX509NameError, NULL);
ossl_str_adjust(str, p);
return str;
}