[PATCH 2/5] ntdll: Introduce IOCTL_AFD_WINE_FIONREAD.
Zebediah Figura
z.figura12 at gmail.com
Wed Jun 2 17:03:59 CDT 2021
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/ntdll/unix/socket.c | 42 ++++++++++++++++++++++++++++++++++++++++
include/wine/afd.h | 1 +
2 files changed, 43 insertions(+)
diff --git a/dlls/ntdll/unix/socket.c b/dlls/ntdll/unix/socket.c
index cfc5780b082..16df04b6cb1 100644
--- a/dlls/ntdll/unix/socket.c
+++ b/dlls/ntdll/unix/socket.c
@@ -25,6 +25,9 @@
#include "config.h"
#include <errno.h>
#include <unistd.h>
+#ifdef HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
@@ -1274,6 +1277,45 @@ NTSTATUS sock_ioctl( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, void *apc
status = sock_poll( handle, event, apc, apc_user, io, in_buffer, in_size, out_buffer, out_size );
break;
+ case IOCTL_AFD_WINE_FIONREAD:
+ {
+ int value, ret;
+
+ if (out_size < sizeof(int))
+ {
+ status = STATUS_BUFFER_TOO_SMALL;
+ break;
+ }
+
+ if ((status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
+ return status;
+
+#ifdef linux
+ {
+ socklen_t len = sizeof(value);
+
+ /* FIONREAD on a listening socket always fails (see tcp(7)). */
+ if (!getsockopt( fd, SOL_SOCKET, SO_ACCEPTCONN, &value, &len ) && value)
+ {
+ *(int *)out_buffer = 0;
+ status = STATUS_SUCCESS;
+ complete_async( handle, event, apc, apc_user, io, status, 0 );
+ break;
+ }
+ }
+#endif
+
+ if ((ret = ioctl( fd, FIONREAD, &value )) < 0)
+ {
+ status = sock_errno_to_status( errno );
+ break;
+ }
+ *(int *)out_buffer = value;
+ status = STATUS_SUCCESS;
+ complete_async( handle, event, apc, apc_user, io, status, 0 );
+ break;
+ }
+
default:
{
if ((code >> 16) == FILE_DEVICE_NETWORK)
diff --git a/include/wine/afd.h b/include/wine/afd.h
index 77801b1fbe3..0c19c8e0f58 100644
--- a/include/wine/afd.h
+++ b/include/wine/afd.h
@@ -98,6 +98,7 @@ struct afd_poll_params
#define IOCTL_AFD_WINE_ADDRESS_LIST_CHANGE CTL_CODE(FILE_DEVICE_NETWORK, 208, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_AFD_WINE_FIONBIO CTL_CODE(FILE_DEVICE_NETWORK, 209, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_AFD_WINE_COMPLETE_ASYNC CTL_CODE(FILE_DEVICE_NETWORK, 210, METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_AFD_WINE_FIONREAD CTL_CODE(FILE_DEVICE_NETWORK, 211, METHOD_BUFFERED, FILE_ANY_ACCESS)
struct afd_create_params
{
--
2.30.2
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