Allow verification of other types than DATA.

Submitted by Leonard Janke <leonard@votehere.net>

crypto/pkcs7/pk7_doit.c

@@ -67,6 +67,38 @@ static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
 			 void *value);
 static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid);
 
+static int PKCS7_type_is_other(PKCS7* p7)
+	{
+	int isOther=1;
+	
+	int nid=OBJ_obj2nid(p7->type);
+
+	switch( nid )
+		{
+	case NID_pkcs7_data:
+	case NID_pkcs7_signed:
+	case NID_pkcs7_enveloped:
+	case NID_pkcs7_signedAndEnveloped:
+	case NID_pkcs7_digest:
+	case NID_pkcs7_encrypted:
+		isOther=0;
+		break;
+	default:
+		isOther=1;
+		}
+
+	return isOther;
+
+	}
+
+static int PKCS7_type_is_octet_string(PKCS7* p7)
+	{
+	if ( 0==PKCS7_type_is_other(p7) )
+		return 0;
+
+	return (V_ASN1_OCTET_STRING==p7->d.other->type) ? 1 : 0;
+	}
+
 BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
 	{
 	int i,j;
@@ -222,13 +254,20 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
 		if (PKCS7_is_detached(p7))
 			bio=BIO_new(BIO_s_null());
 		else {
-			if (PKCS7_type_is_signed(p7) &&
-				PKCS7_type_is_data(p7->d.sign->contents)) {
-				ASN1_OCTET_STRING *os;
-				os=p7->d.sign->contents->d.data;
-				if (os->length > 0) bio = 
-					BIO_new_mem_buf(os->data, os->length);
-			} 
+			if (PKCS7_type_is_signed(p7) ) { 
+				if ( PKCS7_type_is_data(p7->d.sign->contents)) {
+					ASN1_OCTET_STRING *os;
+					os=p7->d.sign->contents->d.data;
+					if (os->length > 0)
+						bio = BIO_new_mem_buf(os->data, os->length);
+				}
+				else if ( PKCS7_type_is_octet_string(p7->d.sign->contents) ) {
+					ASN1_OCTET_STRING *os;
+					os=p7->d.sign->contents->d.other->value.octet_string;
+					if (os->length > 0)
+						bio = BIO_new_mem_buf(os->data, os->length);
+				}
+			}
 			if(bio == NULL) {
 				bio=BIO_new(BIO_s_mem());
 				BIO_set_mem_eof_return(bio,0);