Joan Lledó, le sam. 04 mai 2019 10:19:59 +0200, a ecrit:
> Lwip 2.1.2 added a new assertion to ensure that no unsupported flags
> are being sent to lwip_sendmsg(). MSG_NOSIGNAL is one of these flags
> and name resolving stopped working.
Applied, thanks!
> * lwip/socket-ops.c: lwip_S_socket_send():
> * Clear MSG_NOSIGNAL to ensure is not sent to lwip_sendmsg().
> ---
> lwip/socket-ops.c | 13 ++++++++-----
> 1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/lwip/socket-ops.c b/lwip/socket-ops.c
> index ed506ce9..decba3f8 100644
> --- a/lwip/socket-ops.c
> +++ b/lwip/socket-ops.c
> @@ -347,11 +347,11 @@ lwip_S_socket_send (struct sock_user * user,
> int sent;
> int sockflags;
> struct iovec iov = { data, datalen };
> -struct msghdr m = { msg_name:addr ? &addr->address : 0,
> - msg_namelen:addr ? addr->address.sa.sa_len : 0,
> - msg_flags:flags,
> - msg_controllen: 0, msg_iov: &iov, msg_iovlen:1
> - };
> + struct msghdr m = { msg_name:addr ? &addr->address : 0,
> + msg_namelen:addr ? addr->address.sa.sa_len : 0,
> + msg_flags:flags,
> + msg_controllen: 0, msg_iov: &iov, msg_iovlen:1
> + };
>
> if (!user)
> return EOPNOTSUPP;
> @@ -361,8 +361,11 @@ struct msghdr m = { msg_name:addr ? &addr->address : 0,
> return EINVAL;
>
> sockflags = lwip_fcntl (user->sock->sockno, F_GETFL, 0);
> + /* XXX: missing !MSG_NOSIGNAL support, i.e. generate SIGPIPE */
> + flags &= ~MSG_NOSIGNAL;
> if (sockflags & O_NONBLOCK)
> flags |= MSG_DONTWAIT;
> +
> sent = lwip_sendmsg (user->sock->sockno, &m, flags);
>
> /* MiG should do this for us, but it doesn't. */
> --
> 2.17.1
>
>
--
Samuel
> Il [e2fsck] a bien démarré, mais il m'a rendu la main aussitot en me
> disant "houlala, c'est pas beau à voir votre truc, je préfèrerai que
> vous teniez vous même la tronçonneuse" (traduction libre)
NC in Guide du linuxien pervers : "Bien configurer sa tronçonneuse."
