diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/tst-mount.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-mount.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/tst-mount.c b/sysdeps/unix/sysv/linux/tst-mount.c index 12a665f950..502d7e3433 100644 --- a/sysdeps/unix/sysv/linux/tst-mount.c +++ b/sysdeps/unix/sysv/linux/tst-mount.c @@ -23,6 +23,9 @@ #include <sys/wait.h> #include <sys/mount.h> +_Static_assert (sizeof (struct mount_attr) == MOUNT_ATTR_SIZE_VER0, + "sizeof (struct mount_attr) != MOUNT_ATTR_SIZE_VER0"); + static void subprocess (void) { @@ -67,10 +70,31 @@ subprocess (void) TEST_COMPARE (open_tree (AT_FDCWD, "", 0), -1); TEST_COMPARE (errno, ENOENT); + int fd_tree = open_tree (AT_FDCWD, "/tmp", + OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC); + TEST_VERIFY (fd_tree != -1); + { - int fd_tree = open_tree (AT_FDCWD, "/tmp", - OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC); - TEST_VERIFY (fd_tree != -1); + struct mount_attr attr = + { + .attr_set = MOUNT_ATTR_RDONLY, + }; + mount_setattr (fd_tree, "", AT_EMPTY_PATH, &attr, + sizeof (attr)); + int r = mount_setattr (fd_tree, "", AT_EMPTY_PATH, &attr, + sizeof (attr)); + /* New mount API was added on 5.1, but mount_setattr on 5.12. */ + if (r == -1) + TEST_COMPARE (errno, ENOSYS); + else + { + TEST_COMPARE (mount_setattr (-1, "", AT_EMPTY_PATH, &attr, + sizeof (attr)), -1); + TEST_COMPARE (errno, EBADF); + TEST_COMPARE (mount_setattr (fd_tree, "", AT_EMPTY_PATH, &attr, + sizeof (attr) - 8), -1); + TEST_COMPARE (errno, EINVAL); + } } _exit (0); |