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Throughout change "WinSock" to "Winsock" in comments. 

* fhandler_socket.cc (fhandler_socket::sendmsg): Add missing call to
	get_inet_addr to convert AF_LOCAL to AF_INET sockets.
	* net.cc (cygwin_socket): Workaround UDP Winsock problem.  Add comment
	to explain why.
	* select.cc: Include winsock2.h rather than winsock.h.
This commit is contained in:
Corinna Vinschen 2011-07-29 12:47:54 +00:00
parent 108b037ea3
commit c487f2fef5
4 changed files with 46 additions and 12 deletions
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9
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,12 @@
2011-07-29 Corinna Vinschen <corinna@vinschen.de>
Throughout change "WinSock" to "Winsock" in comments.
* fhandler_socket.cc (fhandler_socket::sendmsg): Add missing call to
get_inet_addr to convert AF_LOCAL to AF_INET sockets.
* net.cc (cygwin_socket): Workaround UDP Winsock problem. Add comment
to explain why.
* select.cc: Include winsock2.h rather than winsock.h.
2011-07-26 Corinna Vinschen <corinna@vinschen.de>
* fhandler_disk_file.cc (__DIR_mounts::eval_ino): Create path_conv

20
winsup/cygwin/fhandler_socket.cc
View File

@ -1129,7 +1129,7 @@ fhandler_socket::listen (int backlog)
{
/* It's perfectly valid to call listen on an unbound INET socket.
In this case the socket is automatically bound to an unused
port number, listening on all interfaces. On Winsock, listen
port number, listening on all interfaces. On WinSock, listen
fails with WSAEINVAL when it's called on an unbound socket.
So we have to bind manually here to have POSIX semantics. */
if (get_addr_family () == AF_INET)
@ -1283,7 +1283,7 @@ fhandler_socket::getsockname (struct sockaddr *name, int *namelen)
{
if (WSAGetLastError () == WSAEINVAL)
{
/* Winsock returns WSAEINVAL if the socket is locally
/* WinSock returns WSAEINVAL if the socket is locally
unbound. Per SUSv3 this is not an error condition.
We're faking a valid return value here by creating the
same content in the sockaddr structure as on Linux. */
@ -1454,7 +1454,7 @@ fhandler_socket::recv_internal (LPWSAMSG wsamsg)
about that and fails, while the same test is omitted in the recv
functions.
This also covers another weird case: Winsock returns WSAEFAULT if
This also covers another weird case: WinSock returns WSAEFAULT if
namelen is a valid pointer while name is NULL. Both parameters are
ignored for TCP sockets, so this only occurs when using UDP socket. */
else if (!wsamsg->name || get_socket_type () == SOCK_STREAM)
@ -1698,9 +1698,17 @@ fhandler_socket::sendto (const void *ptr, size_t len, int flags,
int
fhandler_socket::sendmsg (const struct msghdr *msg, int flags)
{
/* TODO: Descriptor passing on AF_LOCAL sockets. */
struct sockaddr_storage sst;
int len = 0;
pthread_testcancel ();
/* TODO: Descriptor passing on AF_LOCAL sockets. */
if (msg->msg_name
&& get_inet_addr ((struct sockaddr *) msg->msg_name, msg->msg_namelen,
&sst, &len) == SOCKET_ERROR)
return SOCKET_ERROR;
WSABUF wsabuf[msg->msg_iovlen];
WSABUF *wsaptr = wsabuf;
@ -1710,7 +1718,7 @@ fhandler_socket::sendmsg (const struct msghdr *msg, int flags)
wsaptr->len = iovptr->iov_len;
(wsaptr++)->buf = (char *) (iovptr++)->iov_base;
}
WSAMSG wsamsg = { (struct sockaddr *) msg->msg_name, msg->msg_namelen,
WSAMSG wsamsg = { msg->msg_name ? (struct sockaddr *) &sst : NULL, len,
wsabuf, msg->msg_iovlen,
/* Disappointing but true: Even if WSASendMsg is
supported, it's only supported for datagram and
@ -1730,7 +1738,7 @@ fhandler_socket::shutdown (int how)
/* Linux allows to call shutdown for any socket, even if it's not connected.
This also disables to call accept on this socket, if shutdown has been
called with the SHUT_RD or SHUT_RDWR parameter. In contrast, Winsock
called with the SHUT_RD or SHUT_RDWR parameter. In contrast, WinSock
only allows to call shutdown on a connected socket. The accept function
is in no way affected. So, what we do here is to fake success, and to
change the event settings so that an FD_CLOSE event is triggered for the

27
winsup/cygwin/net.cc
View File

@ -639,6 +639,23 @@ cygwin_socket (int af, int type, int protocol)
((fhandler_socket *) fd)->set_nonblocking (true);
if (flags & SOCK_CLOEXEC)
((fhandler_socket *) fd)->set_close_on_exec (true);
if (type == SOCK_DGRAM)
{
/* Workaround the problem that a missing listener on a UDP socket
in a call to sendto will result in select/WSAEnumNetworkEvents
reporting that the socket has pending data and a subsequent call
to recvfrom will return -1 with error set to WSAECONNRESET.
This problem is a regression introduced in Windows 2000.
Instead of fixing the problem, a new socket IOCTL code has
been added, see http://support.microsoft.com/kb/263823 */
BOOL cr = FALSE;
DWORD blen;
if (WSAIoctl (soc, SIO_UDP_CONNRESET, &cr, sizeof cr, NULL, 0,
&blen, NULL, NULL) == SOCKET_ERROR)
debug_printf ("Reset SIO_UDP_CONNRESET: WinSock error %lu",
WSAGetLastError ());
}
res = fd;
}
}
@ -723,7 +740,7 @@ cygwin_setsockopt (int fd, int level, int optname, const void *optval,
res = -1;
else
{
/* Old applications still use the old Winsock1 IPPROTO_IP values. */
/* Old applications still use the old WinSock1 IPPROTO_IP values. */
if (level == IPPROTO_IP && CYGWIN_VERSION_CHECK_FOR_USING_WINSOCK1_VALUES)
optname = convert_ws1_ip_optname (optname);
@ -822,7 +839,7 @@ cygwin_getsockopt (int fd, int level, int optname, void *optval,
}
else
{
/* Old applications still use the old Winsock1 IPPROTO_IP values. */
/* Old applications still use the old WinSock1 IPPROTO_IP values. */
if (level == IPPROTO_IP && CYGWIN_VERSION_CHECK_FOR_USING_WINSOCK1_VALUES)
optname = convert_ws1_ip_optname (optname);
res = getsockopt (fh->get_socket (), level, optname, (char *) optval,
@ -3345,7 +3362,7 @@ ga_aistruct (struct addrinfo ***paipnext, const struct addrinfo *hintsp,
/* Cygwin specific: The ga_clone function is split up to allow an easy
duplication of addrinfo structs. This is used to duplicate the
structures from Winsock, so that we have the allocation of the structs
structures from WinSock, so that we have the allocation of the structs
returned to the application under control. This is especially helpful
for the AI_V4MAPPED case prior to Vista. */
static struct addrinfo *
@ -4271,7 +4288,7 @@ cygwin_getaddrinfo (const char *hostname, const char *servname,
| AI_NUMERICSERV | AI_ADDRCONFIG | AI_V4MAPPED)))
return EAI_BADFLAGS;
/* AI_NUMERICSERV is not supported in our replacement getaddrinfo, nor
is it supported by Winsock prior to Vista. We just check the servname
is it supported by WinSock prior to Vista. We just check the servname
parameter by ourselves here. */
if (hints && (hints->ai_flags & AI_NUMERICSERV))
{
@ -4364,7 +4381,7 @@ cygwin_getnameinfo (const struct sockaddr *sa, socklen_t salen,
return ipv4_getnameinfo (sa, salen, host, hostlen, serv, servlen, flags);
/* When the incoming port number does not resolve to a well-known service,
Winsock's getnameinfo up to Windows 2003 returns with error WSANO_DATA
WinSock's getnameinfo up to Windows 2003 returns with error WSANO_DATA
instead of setting `serv' to the numeric port number string, as required
by RFC 3493. This is fixed on Vista and later. To avoid the error on
systems up to Windows 2003, we check if the port number resolves

2
winsup/cygwin/select.cc
View File

@ -23,7 +23,7 @@ details. */
#include <winuser.h>
#include <netdb.h>
#define USE_SYS_TYPES_FD_SET
#include <winsock.h>
#include <winsock2.h>
#include "cygerrno.h"
#include "security.h"
#include "path.h"