Add ASN1_TYPE_cmp and X509_ALGOR_cmp.

[thirdparty/openssl.git] / crypto / asn1 / a_type.c

diff --git a/crypto/asn1/a_type.c b/crypto/asn1/a_type.c
index 36beceacdb07e83ace8c91531822d8975edce57f..b7a95ad2197cfefb231ebc9234b7d931a7889c35 100644 (file)
--- a/crypto/asn1/a_type.c
+++ b/crypto/asn1/a_type.c
@@ -108,3 +108,49 @@ int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
 
 IMPLEMENT_STACK_OF(ASN1_TYPE)
 IMPLEMENT_ASN1_SET_OF(ASN1_TYPE)
+
+/* Returns 0 if they are equal, != 0 otherwise. */
+int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
+       {
+       int result = -1;
+
+       if (!a || !b || a->type != b->type) return -1;
+
+       switch (a->type)
+               {
+       case V_ASN1_OBJECT:
+               result = OBJ_cmp(a->value.object, b->value.object);
+               break;
+       case V_ASN1_NULL:
+               result = 0;     /* They do not have content. */
+               break;
+       case V_ASN1_INTEGER:
+       case V_ASN1_NEG_INTEGER:
+       case V_ASN1_ENUMERATED:
+       case V_ASN1_NEG_ENUMERATED:
+       case V_ASN1_BIT_STRING:
+       case V_ASN1_OCTET_STRING:
+       case V_ASN1_SEQUENCE:
+       case V_ASN1_SET:
+       case V_ASN1_NUMERICSTRING:
+       case V_ASN1_PRINTABLESTRING:
+       case V_ASN1_T61STRING:
+       case V_ASN1_VIDEOTEXSTRING:
+       case V_ASN1_IA5STRING:
+       case V_ASN1_UTCTIME:
+       case V_ASN1_GENERALIZEDTIME:
+       case V_ASN1_GRAPHICSTRING:
+       case V_ASN1_VISIBLESTRING:
+       case V_ASN1_GENERALSTRING:
+       case V_ASN1_UNIVERSALSTRING:
+       case V_ASN1_BMPSTRING:
+       case V_ASN1_UTF8STRING:
+       case V_ASN1_OTHER:
+       default:
+               result = ASN1_STRING_cmp((ASN1_STRING *) a->value.ptr,
+                                        (ASN1_STRING *) b->value.ptr);
+               break;
+               }
+
+       return result;
+       }