Mao Zhongyi <maozy.f...@cn.fujitsu.com> writes: > In the net_socket_fd_init(), the 'default' case and comment is odd. > If @fd really was a pty, getsockopt() would fail with ENOTSOCK. If > @fd was a socket, but neither SOCK_DGRAM nor SOCK_STREAM. It should > not be treated as if it was SOCK_STREAM. > > If there is a genuine reason to support something like SOCK_RAW, it > should be explicitly handled. > > So, drop the 'default' case since it is broken already. > > Cc: jasow...@redhat.com > Cc: arm...@redhat.com > Cc: berra...@redhat.com > Cc: arm...@redhat.com > Suggested-by: Markus Armbruster <arm...@redhat.com> > Suggested-by: Daniel P. Berrange <berra...@redhat.com> > Signed-off-by: Mao Zhongyi <maozy.f...@cn.fujitsu.com> > --- > net/socket.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/net/socket.c b/net/socket.c > index dcae1ae..53765bd 100644 > --- a/net/socket.c > +++ b/net/socket.c > @@ -449,9 +449,9 @@ static NetSocketState *net_socket_fd_init(NetClientState > *peer, > case SOCK_STREAM: > return net_socket_fd_init_stream(peer, model, name, fd, > is_connected); > default: > - /* who knows ... this could be a eg. a pty, do warn and continue as > stream */ > - fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not > SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); > - return net_socket_fd_init_stream(peer, model, name, fd, > is_connected); > + error_report("qemu: error: socket type=%d for fd=%d is not" > + " SOCK_DGRAM or SOCK_STREAM", so_type, fd); > + closesocket(fd); > } > return NULL; > }
You don't actually "drop the 'default' case", as your commit message claims. Perhaps: net/socket: Don't treat odd socket type as SOCK_STREAM In net_socket_fd_init(), the 'default' case is odd: it warns, then continues as if the socket type was SOCK_STREAM. The comment explains "this could be a eg. a pty", but that makes no sense. If @fd really was a pty, getsockopt() would fail with ENOTSOCK. If @fd was a socket, but neither SOCK_DGRAM nor SOCK_STREAM, it should not be treated as if it was SOCK_STREAM. Turn this case into an error. If there is a genuine reason to support something like SOCK_RAW, it should be handled explicitly. With something like that: Reviewed-by: Markus Armbruster <arm...@redhat.com>