New functions to retrieve certificate signatures and signature OID NID.

(backport from HEAD)

1 files changed, 14 insertions, 0 deletions

diff --git a/crypto/asn1/x_x509.c b/crypto/asn1/x_x509.c
index de3df9eb51..fd5e6c6428 100644
--- a/crypto/asn1/x_x509.c
+++ b/crypto/asn1/x_x509.c
@@ -192,3 +192,17 @@ int i2d_X509_AUX(X509 *a, unsigned char **pp)
 	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
 	return length;
 }
+
+void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg,
+				const X509 *x)
+	{
+	if (psig)
+		*psig = x->signature;
+	if (palg)
+		*palg = x->sig_alg;
+	}
+
+int X509_get_signature_nid(const X509 *x)
+	{
+	return OBJ_obj2nid(x->sig_alg->algorithm);
+	}