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ws2_32: Fix ioctlsocket(FIONREAD) with listening socket.

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Signed-off-by: Akihiro Sagawa <sagawa.aki@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Akihiro Sagawa 2018-02-25 15:01:05 +09:00 committed by Alexandre Julliard
parent 13b66d3d1c
commit f6b6c94add
2 changed files with 14 additions and 2 deletions
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12
dlls/ws2_32/socket.c
View file

@ -4648,12 +4648,24 @@ INT WINAPI WSAIoctl(SOCKET s, DWORD code, LPVOID in_buff, DWORD in_size, LPVOID
case WS_FIONREAD:
{
#if defined(linux)
int listening = 0;
socklen_t len = sizeof(listening);
#endif
if (out_size != sizeof(WS_u_long) || IS_INTRESOURCE(out_buff))
{
SetLastError(WSAEFAULT);
return SOCKET_ERROR;
}
if ((fd = get_sock_fd( s, 0, NULL )) == -1) return SOCKET_ERROR;
#if defined(linux)
/* On Linux, FIONREAD on listening socket always fails (see tcp(7)).
However, it succeeds on native. */
if (!getsockopt( fd, SOL_SOCKET, SO_ACCEPTCONN, &listening, &len ) && listening)
(*(WS_u_long *) out_buff) = 0;
else
#endif
if (ioctl(fd, FIONREAD, out_buff ) == -1)
status = wsaErrno();
release_sock_fd( s, fd );

4
dlls/ws2_32/tests/sock.c
View file

@ -5233,8 +5233,8 @@ static void test_ioctlsocket(void)
/* test FIONREAD with listening socket */
arg = 0xdeadbeef;
ret = ioctlsocket(sock, FIONREAD, &arg);
todo_wine ok(ret == 0, "ioctlsocket failed unexpectedly with error %d\n", WSAGetLastError());
todo_wine ok(arg == 0, "expected 0, got %u\n", arg);
ok(ret == 0, "ioctlsocket failed unexpectedly with error %d\n", WSAGetLastError());
ok(arg == 0, "expected 0, got %u\n", arg);
closesocket(sock);