to_der()
public
Encodes this DSA to its DER encoding.
static VALUE
ossl_dsa_to_der(VALUE self)
{
DSA *dsa;
int (*i2d_func)(DSA *, unsigned char **);
unsigned char *p;
long len;
VALUE str;
GetDSA(self, dsa);
if(DSA_HAS_PRIVATE(dsa))
i2d_func = (int (*)(DSA *,unsigned char **))i2d_DSAPrivateKey;
else
i2d_func = i2d_DSA_PUBKEY;
if((len = i2d_func(dsa, NULL)) <= 0)
ossl_raise(eDSAError, NULL);
str = rb_str_new(0, len);
p = (unsigned char *)RSTRING_PTR(str);
if(i2d_func(dsa, &p) < 0)
ossl_raise(eDSAError, NULL);
ossl_str_adjust(str, p);
return str;
}