From d8c330254a7df21cb5edac3440b62a512fcc8d2d Mon Sep 17 00:00:00 2001
From: gVisor bot <gvisor-bot@google.com>
Date: Thu, 28 Jan 2021 12:22:00 -0800
Subject: Add O_PATH support in vfs2

PiperOrigin-RevId: 354367665
---
 test/syscalls/linux/preadv.cc | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'test/syscalls/linux/preadv.cc')

diff --git a/test/syscalls/linux/preadv.cc b/test/syscalls/linux/preadv.cc
index 5b0743fe9..1c40f0915 100644
--- a/test/syscalls/linux/preadv.cc
+++ b/test/syscalls/linux/preadv.cc
@@ -89,6 +89,20 @@ TEST(PreadvTest, MMConcurrencyStress) {
   // The test passes if it neither deadlocks nor crashes the OS.
 }
 
+// This test calls preadv with an O_PATH fd.
+TEST(PreadvTest, PreadvWithOpath) {
+  SKIP_IF(IsRunningWithVFS1());
+  const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
+  const FileDescriptor fd =
+      ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_PATH));
+
+  struct iovec iov;
+  iov.iov_base = nullptr;
+  iov.iov_len = 0;
+
+  EXPECT_THAT(preadv(fd.get(), &iov, 1, 0), SyscallFailsWithErrno(EBADF));
+}
+
 }  // namespace
 
 }  // namespace testing
-- 
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