Re: [Qemu-devel] [PATCH v3] slirp: Port redirection option behave differently on Linux and Windows

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2013-08-15 21:25, Taimoor wrote:
> From: Taimoor Mirza <tmirza@codesourcery.com>
> 
> port redirection code uses SO_REUSEADDR socket option before binding to
> host port. Behavior of SO_REUSEADDR is different on Windows and Linux.
> Relaunching QEMU with same host and guest port redirection values on Linux
> throws error but on Windows it does not throw any error.
> Problem is discussed in http://lists.gnu.org/archive/html/qemu-devel/2013-04/msg03089.html
> 
> Signed-off-by: Taimoor Mirza <tmirza@codesourcery.com>
> ---
> Changes in v3:
> - Removed extra commit
> 
> Changes in v2:
> - Changed #ifdef to #ifndef as SO_REUSEADDR should not be set in case of Windows.
> 
>  slirp/socket.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/slirp/socket.c b/slirp/socket.c
> index 8e8819c..25d60e7 100644
> --- a/slirp/socket.c
> +++ b/slirp/socket.c
> @@ -627,7 +627,9 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
>  	addr.sin_port = hport;
>  
>  	if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) ||
> +#ifndef _WIN32
>  	    (qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)) < 0) ||
> +#endif
>  	    (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
>  	    (listen(s,1) < 0)) {
>  		int tmperrno = errno; /* Don't clobber the real reason we failed */
> 

Stefan, can you ack this? Then I would pick it up for the slirp queue.

Thanks,
Jan

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