diff options
Diffstat (limited to 'test/syscalls')
| -rw-r--r-- | test/syscalls/linux/symlink.cc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/syscalls/linux/symlink.cc b/test/syscalls/linux/symlink.cc index 69650a1d3..b249ff91f 100644 --- a/test/syscalls/linux/symlink.cc +++ b/test/syscalls/linux/symlink.cc @@ -325,6 +325,21 @@ TEST_P(ParamSymlinkTest, CreateExistingSelfLink) { ASSERT_THAT(unlink(linkpath.c_str()), SyscallSucceeds()); } +// Test that opening a file that is a symlink to its parent directory fails +// with ELOOP. +TEST_P(ParamSymlinkTest, CreateExistingParentLink) { + ASSERT_THAT(chdir(GetAbsoluteTestTmpdir().c_str()), SyscallSucceeds()); + + const std::string linkpath = GetParam(); + const std::string target = JoinPath(linkpath, "child"); + ASSERT_THAT(symlink(target.c_str(), linkpath.c_str()), SyscallSucceeds()); + + EXPECT_THAT(open(linkpath.c_str(), O_CREAT, 0666), + SyscallFailsWithErrno(ELOOP)); + + ASSERT_THAT(unlink(linkpath.c_str()), SyscallSucceeds()); +} + // Test that opening an existing symlink with O_CREAT|O_EXCL will fail with // EEXIST. TEST_P(ParamSymlinkTest, OpenLinkExclFails) { |