pkg: Fix mirror type parsing and service discovery

Signed-off-by: Pavel Knoblokh <[email protected]>
Reviewed by:	emaste, imp, kevans
Fixes:		dc4581589a ("pkg: clean support for repositories")
Closes:		https://github.com/freebsd/freebsd-src/pull/1989

usr.sbin/pkg/config.c

@@ -328,7 +328,8 @@ parse_mirror_type(struct repository *r, const char *mt)
 {
 	if (strcasecmp(mt, "srv") == 0)
 		r->mirror_type = MIRROR_SRV;
-	r->mirror_type = MIRROR_NONE;
+	else
+		r->mirror_type = MIRROR_NONE;
 }
 
 static void

usr.sbin/pkg/pkg.c

@@ -334,6 +334,12 @@ fetchfail:
 	}
 
 cleanup:
+	fetchFreeURL(u);
+	while (mirrors != NULL) {
+		current = mirrors;
+		mirrors = mirrors->next;
+		free(current);
+	}
 	if (remote != NULL)
 		fclose(remote);