diff options
Diffstat (limited to 'misc/tst-preadvwritev2-common.c')
| -rw-r--r-- | misc/tst-preadvwritev2-common.c | 65 |
1 files changed, 62 insertions, 3 deletions
diff --git a/misc/tst-preadvwritev2-common.c b/misc/tst-preadvwritev2-common.c index f889a21544..50b9da3fea 100644 --- a/misc/tst-preadvwritev2-common.c +++ b/misc/tst-preadvwritev2-common.c @@ -19,9 +19,6 @@ #include <limits.h> #include <support/check.h> -static void -do_test_with_invalid_flags (void) -{ #ifndef RWF_HIPRI # define RWF_HIPRI 0 #endif @@ -39,6 +36,68 @@ do_test_with_invalid_flags (void) #endif #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \ | RWF_APPEND) + +static void +do_test_with_invalid_fd (void) +{ + char buf[256]; + struct iovec iov = { buf, sizeof buf }; + + /* Check with flag being 0 to use the fallback code which calls pwritev + or writev. */ + TEST_VERIFY (preadv2 (-1, &iov, 1, -1, 0) == -1); + TEST_COMPARE (errno, EBADF); + TEST_VERIFY (pwritev2 (-1, &iov, 1, -1, 0) == -1); + TEST_COMPARE (errno, EBADF); + + /* Same tests as before but with flags being different than 0. Since + there is no emulation for any flag value, fallback code returns + ENOTSUP. This is different running on a kernel with preadv2/pwritev2 + support, where EBADF is returned). */ + TEST_VERIFY (preadv2 (-1, &iov, 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EBADF || errno == ENOTSUP); + TEST_VERIFY (pwritev2 (-1, &iov, 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EBADF || errno == ENOTSUP); +} + +static void +do_test_with_invalid_iov (void) +{ + { + char buf[256]; + struct iovec iov; + + iov.iov_base = buf; + iov.iov_len = (size_t)SSIZE_MAX + 1; + + TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, 0) == -1); + TEST_COMPARE (errno, EINVAL); + TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, 0) == -1); + TEST_COMPARE (errno, EINVAL); + + /* Same as for invalid file descriptor tests, emulation fallback + first checks for flag value and return ENOTSUP. */ + TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EINVAL || errno == ENOTSUP); + TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EINVAL || errno == ENOTSUP); + } + + { + /* An invalid iovec buffer should trigger an invalid memory access + or an error (Linux for instance returns EFAULT). */ + struct iovec iov[IOV_MAX+1] = { 0 }; + + TEST_VERIFY (preadv2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EINVAL || errno == ENOTSUP); + TEST_VERIFY (pwritev2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1); + TEST_VERIFY (errno == EINVAL || errno == ENOTSUP); + } +} + +static void +do_test_with_invalid_flags (void) +{ /* Set the next bit from the mask of all supported flags. */ int invalid_flag = RWF_SUPPORTED != 0 ? __builtin_clz (RWF_SUPPORTED) : 2; invalid_flag = 0x1 << ((sizeof (int) * CHAR_BIT) - invalid_flag); |