*** POSIX TEST READV/WRITEV ***
writev bad file descriptor -- EBADF
readv bad file descriptor -- EBADF
writev bad iovec pointer -- EINVAL
readv bad iovec pointer -- EINVAL
writev bad iovcnt of 0 -- EINVAL
readv bad iovcnt of 0 -- EINVAL
writev bad iovcnt negative -- EINVAL
readv bad iovcnt negative -- EINVAL
writev bad iov[i].iov_base -- EINVAL
readv bad iov[i].iov_base -- EINVAL
writev bad iov[i].iov_len < 0 -- EINVAL
readv bad iov[i].iov_len < 0 -- EINVAL
writev iov_len total overflows -- EINVAL
readv iov_len total overflows -- EINVAL
writev iov_len works with no effect -- OK
readv iov_len works with no effect -- OK
readv bad iovcnt of IOV_MAX + 1 -- EINVAL
writev bad iovcnt of IOV_MAX + 1 -- EINVAL
File written using writev .. OK
File read using readv .. OK
*** END OF TEST PSXRDWRV ***