message_codec: add free_ASN1Message, for name symmetry

Use it.

src/map_asn1.c

@@ -1073,7 +1073,7 @@ ASN1Message_t *ASN1Message_from_message(
 
 enomem:
     if (allocated)
-        ASN_STRUCT_FREE(asn_DEF_ASN1Message, result);
+        free_ASN1Message(result);
     return NULL;
 }
 

src/message_codec.c

@@ -98,7 +98,7 @@ PEP_STATUS PER_to_XER_ASN1Message_msg(
 
 the_end:
     free_growing_buf(dst);
-    ASN_STRUCT_FREE(asn_DEF_ASN1Message, msg);
+    free_ASN1Message(msg);
     return status;
 }
 
@@ -135,7 +135,13 @@ PEP_STATUS XER_to_PER_ASN1Message_msg(
     *size = (size_t) _size;
 
 the_end:
-    ASN_STRUCT_FREE(asn_DEF_ASN1Message, msg);
+    free_ASN1Message(msg);
     return status;
 }
 
+DYNAMIC_API void free_ASN1Message(
+        ASN1Message_t *msg
+    )
+{
+    ASN_STRUCT_FREE(asn_DEF_ASN1Message, msg);
+}

src/message_codec.h

@@ -96,6 +96,19 @@ DYNAMIC_API PEP_STATUS XER_to_PER_ASN1Message_msg(
     );
 
 
+/**
+ *  <!--         free_ASN1Message()       -->
+ *
+ *  @brief          De-allocate the pointed ASN1 message which must have been
+ *                  heap-allocated.
+ *
+ *  @param[in]      msg       Pointer to the message to destroy.
+ */
+DYNAMIC_API void free_ASN1Message(
+        ASN1Message_t *msg
+    );
+
+
 #ifdef __cplusplus
 }
 #endif

test/src/MapAsn1Test.cc

@@ -194,8 +194,8 @@ TEST_F(MapAsn1Test, check_map_asn1_message) {
     ASSERT_STREQ(msg2->opt_fields->next->value->value, "othervalue");
     ASSERT_STREQ(msg2->_sender_fpr, "2342234223422342");
 
-    ASN_STRUCT_FREE(asn_DEF_ASN1Message, pm);
-    ASN_STRUCT_FREE(asn_DEF_ASN1Message, pm2);
+    free_ASN1Message(pm);
+    free_ASN1Message(pm2);
     free_message(msg);
     free_message(msg2);
     free(data);