--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-pipe-bind-error.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,215 @@
+/* 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>
+
+
+#ifdef _WIN32
+# define BAD_PIPENAME "bad-pipe"
+#else
+# define BAD_PIPENAME "/path/to/unix/socket/that/really/should/not/be/there"
+#endif
+
+
+static int close_cb_called = 0;
+static int connect_cb_called = 0;
+
+
+static void close_cb(uv_handle_t* handle) {
+  ASSERT_NOT_NULL(handle);
+  close_cb_called++;
+}
+
+
+TEST_IMPL(pipe_bind_error_addrinuse) {
+  uv_pipe_t server1, server2;
+  int r;
+
+  r = uv_pipe_init(uv_default_loop(), &server1, 0);
+  ASSERT_OK(r);
+  r = uv_pipe_bind(&server1, TEST_PIPENAME);
+  ASSERT_OK(r);
+
+  r = uv_pipe_init(uv_default_loop(), &server2, 0);
+  ASSERT_OK(r);
+  r = uv_pipe_bind(&server2, TEST_PIPENAME);
+  ASSERT_EQ(r, UV_EADDRINUSE);
+
+  r = uv_listen((uv_stream_t*)&server1, SOMAXCONN, NULL);
+  ASSERT_OK(r);
+  r = uv_listen((uv_stream_t*)&server2, SOMAXCONN, NULL);
+  ASSERT_EQ(r, UV_EINVAL);
+
+  uv_close((uv_handle_t*)&server1, close_cb);
+  uv_close((uv_handle_t*)&server2, close_cb);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(2, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(pipe_bind_error_addrnotavail) {
+  uv_pipe_t server;
+  int r;
+
+  r = uv_pipe_init(uv_default_loop(), &server, 0);
+  ASSERT_OK(r);
+
+  r = uv_pipe_bind(&server, BAD_PIPENAME);
+  ASSERT_EQ(r, UV_EACCES);
+
+  uv_close((uv_handle_t*)&server, close_cb);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(1, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(pipe_bind_error_inval) {
+  uv_pipe_t server;
+  int r;
+
+  r = uv_pipe_init(uv_default_loop(), &server, 0);
+  ASSERT_OK(r);
+  r = uv_pipe_bind(&server, TEST_PIPENAME);
+  ASSERT_OK(r);
+  r = uv_pipe_bind(&server, TEST_PIPENAME_2);
+  ASSERT_EQ(r, UV_EINVAL);
+
+  uv_close((uv_handle_t*)&server, close_cb);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(1, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(pipe_listen_without_bind) {
+#if defined(NO_SELF_CONNECT)
+  RETURN_SKIP(NO_SELF_CONNECT);
+#endif
+  uv_pipe_t server;
+  int r;
+
+  r = uv_pipe_init(uv_default_loop(), &server, 0);
+  ASSERT_OK(r);
+
+  r = uv_listen((uv_stream_t*)&server, SOMAXCONN, NULL);
+  ASSERT_EQ(r, UV_EINVAL);
+
+  uv_close((uv_handle_t*)&server, close_cb);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(1, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+TEST_IMPL(pipe_bind_or_listen_error_after_close) {
+  uv_pipe_t server;
+
+  ASSERT_OK(uv_pipe_init(uv_default_loop(), &server, 0));
+  uv_close((uv_handle_t*) &server, NULL);
+
+  ASSERT_EQ(uv_pipe_bind(&server, TEST_PIPENAME), UV_EINVAL);
+
+  ASSERT_EQ(uv_listen((uv_stream_t*) &server, SOMAXCONN, NULL), UV_EINVAL);
+
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static void connect_overlong_cb(uv_connect_t* connect_req, int status) {
+  ASSERT_EQ(status, UV_EINVAL);
+  connect_cb_called++;
+  uv_close((uv_handle_t*) connect_req->handle, close_cb);
+}
+
+
+TEST_IMPL(pipe_overlong_path) {
+  uv_pipe_t pipe;
+  uv_connect_t req;
+
+  ASSERT_OK(uv_pipe_init(uv_default_loop(), &pipe, 0));
+
+#ifndef _WIN32
+  char path[512];
+  memset(path, '@', sizeof(path));
+
+  /* On most platforms sun_path is smaller than the NAME_MAX
+   * Though there is nothing in the POSIX spec that says it needs to be.
+   * POSIX allows PATH_MAX length paths in saddr.sun_path BUT individual
+   * components of the path can only be NAME_MAX long.
+   * So in this case we end up with UV_ENAMETOOLONG error rather than
+   * UV_EINVAL.
+   * ref: https://github.com/libuv/libuv/issues/4231#issuecomment-2194612711
+   * On AIX the sun_path is larger than the NAME_MAX
+   */
+#if defined(_AIX) && !defined(__PASE__)
+  ASSERT_EQ(UV_ENAMETOOLONG,
+          uv_pipe_bind2(&pipe, path, sizeof(path), UV_PIPE_NO_TRUNCATE));
+  /* UV_ENAMETOOLONG is delayed in uv_pipe_connect2 and won't propagate until
+   * uv_run is called and causes timeouts, therefore in this case we skip calling
+   * uv_pipe_connect2
+   */
+#else
+  ASSERT_EQ(UV_EINVAL,
+          uv_pipe_bind2(&pipe, path, sizeof(path), UV_PIPE_NO_TRUNCATE));
+  ASSERT_EQ(UV_EINVAL,
+          uv_pipe_connect2(&req,
+                           &pipe,
+                           path,
+                           sizeof(path),
+                           UV_PIPE_NO_TRUNCATE,
+                           (uv_connect_cb) abort));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+#endif /*if defined(_AIX) && !defined(__PASE__)*/
+#endif /* ifndef _WIN32 */
+  uv_pipe_connect(&req,
+                  &pipe,
+                  "",
+                  (uv_connect_cb) connect_overlong_cb);
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+  ASSERT_EQ(1, connect_cb_called);
+  ASSERT_EQ(1, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}