/*
* Public
*/
const EVP_MD *
GetDigestPtr(VALUE obj)
{
const EVP_MD *md;
ASN1_OBJECT *oid = NULL;
if (RB_TYPE_P(obj, T_STRING)) {
const char *name = StringValueCStr(obj);
md = EVP_get_digestbyname(name);
if (!md) {
oid = OBJ_txt2obj(name, 0);
md = EVP_get_digestbyobj(oid);
ASN1_OBJECT_free(oid);
}
if(!md)
ossl_raise(rb_eRuntimeError, "Unsupported digest algorithm (%"PRIsVALUE").", obj);
} else {
EVP_MD_CTX *ctx;
SafeGetDigest(obj, ctx);
md = EVP_MD_CTX_md(ctx);
}
return md;
}
static VALUE
ossl_digest_copy(VALUE self, VALUE other)
{
EVP_MD_CTX *ctx1, *ctx2;
rb_check_frozen(self);
if (self == other) return self;
GetDigest(self, ctx1);
SafeGetDigest(other, ctx2);
if (!EVP_MD_CTX_copy(ctx1, ctx2)) {
ossl_raise(eDigestError, NULL);
}
return self;
}
/*
* Public
*/
const EVP_MD *
GetDigestPtr(VALUE obj)
{
const EVP_MD *md;
if (TYPE(obj) == T_STRING) {
const char *name = StringValueCStr(obj);
md = EVP_get_digestbyname(name);
if (!md)
ossl_raise(rb_eRuntimeError, "Unsupported digest algorithm (%s).", name);
} else {
EVP_MD_CTX *ctx;
SafeGetDigest(obj, ctx);
md = EVP_MD_CTX_md(ctx);
}
return md;
}