| commit | bb9558679ffaae062ea26ef97d2273b148e9c515 | |
| author | Peter Maydell <peter.maydell@linaro.org> | |
| Sat, 11 Aug 2012 21:24:35 +0000 (11 22:24 +0100) | ||
| committer | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | |
| Wed, 15 Aug 2012 14:21:33 +0000 (15 15:21 +0100) | ||
| tree | 20374cfc720cd6fee4c9c17097d324fc27b6c6ce | treesnapshot (tar.gz zip) |
| parent | 9c6bb55b864d34d78aa617440fc055e1c61cd2a6 | commitdiff |
iov_send_recv(): Handle zero bytes case even if OS does not
POSIX allows sendmsg() and recvmsg() to fail EMSGSIZE if passed a zero
msg.msg_iovlen (in particular the MacOS X implementation will do this).
Handle the case where iov_send_recv() is passed a zero byte count
explicitly, to avoid accidentally depending on the OS to treat zero
msg_iovlen as a no-op.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
POSIX allows sendmsg() and recvmsg() to fail EMSGSIZE if passed a zero
msg.msg_iovlen (in particular the MacOS X implementation will do this).
Handle the case where iov_send_recv() is passed a zero byte count
explicitly, to avoid accidentally depending on the OS to treat zero
msg_iovlen as a no-op.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
| iov.c | diffblobblamehistory |