--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-getnameinfo.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,116 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include "uv.h"
+#include "task.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+static const char* address_ip4 = "127.0.0.1";
+static const char* address_ip6 = "::1";
+static const int port = 80;
+
+static struct sockaddr_in addr4;
+static struct sockaddr_in6 addr6;
+static uv_getnameinfo_t req;
+
+static void getnameinfo_req(uv_getnameinfo_t* handle,
+                            int status,
+                            const char* hostname,
+                            const char* service) {
+  ASSERT_NOT_NULL(handle);
+  ASSERT_OK(status);
+  ASSERT_NOT_NULL(hostname);
+  ASSERT_NOT_NULL(service);
+}
+
+
+TEST_IMPL(getnameinfo_basic_ip4) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+
+  int r;
+
+  r = uv_ip4_addr(address_ip4, port, &addr4);
+  ASSERT_OK(r);
+
+  r = uv_getnameinfo(uv_default_loop(),
+                     &req,
+                     &getnameinfo_req,
+                     (const struct sockaddr*)&addr4,
+                     0);
+  ASSERT_OK(r);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(getnameinfo_basic_ip4_sync) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+
+  ASSERT_OK(uv_ip4_addr(address_ip4, port, &addr4));
+
+  ASSERT_OK(uv_getnameinfo(uv_default_loop(),
+                           &req,
+                           NULL,
+                           (const struct sockaddr*)&addr4,
+                           0));
+  ASSERT_NE(req.host[0], '\0');
+  ASSERT_NE(req.service[0], '\0');
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(getnameinfo_basic_ip6) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+  
+  int r;
+
+  r = uv_ip6_addr(address_ip6, port, &addr6);
+  ASSERT_OK(r);
+
+  r = uv_getnameinfo(uv_default_loop(),
+                     &req,
+                     &getnameinfo_req,
+                     (const struct sockaddr*)&addr6,
+                     0);
+  ASSERT_OK(r);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}