Remove some memory leaks

Still zome left in ldns-verify-zone, but leaving it for now

test/16-unit-tests-edns.tpkg/16-unit-tests-edns.c

@@ -78,7 +78,7 @@ check_option(void)
 		return 0;
 	}
 
-	ldns_edns_free(edns);
+	ldns_edns_deep_free(edns);
 
 	edns = ldns_edns_new_from_data(LDNS_EDNS_EDE, 4, hex_data);
 
@@ -94,7 +94,6 @@ check_option(void)
 
 	ldns_edns_deep_free(edns);
 	ldns_edns_deep_free(clone);
-
 	return 1;
 }
 
@@ -185,6 +184,7 @@ check_option_list(void)
 		if (ldns_buffer_read_u8(buf) != hex_data[i]) {
 			printf("Error: EDNS data is incorrect: %d, %d\n",
 				ldns_buffer_read_u8_at(buf, i), hex_data[i]);
+			ldns_buffer_free(buf);
 			return 0;
 		}
 	}
@@ -195,9 +195,12 @@ check_option_list(void)
 		if (ldns_buffer_read_u8(buf) != hex_data2[i]) {
 			printf("Error: EDNS data is incorrect: %d, %d\n",
 				ldns_buffer_read_u8_at(buf, i), hex_data2[i]);
+			ldns_buffer_free(buf);
 			return 0;
 		}
 	}
+	ldns_buffer_free(buf);
+	buf = NULL;
 
 	/* Replace the first option with a copy of the second */
 	option = ldns_edns_new_from_data(LDNS_EDNS_PADDING, 5, hex_data2);
@@ -232,6 +235,7 @@ check_option_list(void)
 
 	if (!(check_option_list_entries(clone, option, 1, LDNS_EDNS_PADDING, 5, hex_data2))) {
 		printf("Error: EDNS list entries are incorrect\n");
+		ldns_edns_option_list_deep_free(clone);
 		return 0;
 	}
 
@@ -245,7 +249,7 @@ check_option_list(void)
 		return 0;
 	}
 
-	ldns_edns_option_list_free(clone);
+	ldns_edns_option_list_deep_free(clone);
 
 	ldns_edns_option_list_deep_free(list);