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server: Added server-side FSCTL_PIPE_PEEK implementation.

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Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2017-03-21 13:03:55 +01:00 committed by Alexandre Julliard
parent 7ae689d668
commit 134c83203a
2 changed files with 66 additions and 1 deletions
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5
dlls/ntdll/file.c
View file

@ -1727,7 +1727,12 @@ NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc
}
if ((status = server_get_unix_fd( handle, FILE_READ_DATA, &fd, &needs_close, NULL, NULL )))
{
if (status == STATUS_BAD_DEVICE_TYPE)
status = server_ioctl_file( handle, event, apc, apc_context, io, code,
in_buffer, in_size, out_buffer, out_size );
break;
}
#ifdef FIONREAD
if (ioctl( fd, FIONREAD, &avail ) != 0)

62
server/named_pipe.c
View file

@ -208,6 +208,8 @@ static int pipe_client_signaled( struct object *obj, struct wait_queue_entry *en
static struct fd *pipe_client_get_fd( struct object *obj );
static void pipe_client_destroy( struct object *obj );
static obj_handle_t pipe_client_flush( struct fd *fd, struct async *async, int blocking );
static obj_handle_t pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
int blocking );
static enum server_fd_type pipe_client_get_fd_type( struct fd *fd );
static const struct object_ops pipe_client_ops =
@ -240,7 +242,7 @@ static const struct fd_ops pipe_client_fd_ops =
no_fd_read, /* read */
pipe_end_write, /* write */
pipe_client_flush, /* flush */
default_fd_ioctl, /* ioctl */
pipe_client_ioctl, /* ioctl */
pipe_end_queue_async, /* queue_async */
pipe_end_reselect_async /* reselect_async */
};
@ -792,6 +794,44 @@ static enum server_fd_type pipe_client_get_fd_type( struct fd *fd )
return FD_TYPE_PIPE;
}
static void pipe_end_peek( struct pipe_end *pipe_end )
{
unsigned reply_size = get_reply_max_size();
FILE_PIPE_PEEK_BUFFER *buffer;
struct pipe_message *message;
data_size_t avail = 0;
if (!use_server_io( pipe_end ))
{
set_error( STATUS_NOT_SUPPORTED );
return;
}
if (reply_size < offsetof( FILE_PIPE_PEEK_BUFFER, Data ))
{
set_error( STATUS_INFO_LENGTH_MISMATCH );
return;
}
reply_size -= offsetof( FILE_PIPE_PEEK_BUFFER, Data );
LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
avail += message->iosb->in_size - message->read_pos;
if (avail)
{
message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
reply_size = min( reply_size, message->iosb->in_size - message->read_pos );
}
else reply_size = 0;
if (!(buffer = set_reply_data_size( offsetof( FILE_PIPE_PEEK_BUFFER, Data[reply_size] )))) return;
buffer->NamedPipeState = 0; /* FIXME */
buffer->ReadDataAvailable = avail;
buffer->NumberOfMessages = 0; /* FIXME */
buffer->MessageLength = 0; /* FIXME */
if (reply_size) memcpy( buffer->Data, (const char *)message->iosb->in_data + message->read_pos, reply_size );
}
static obj_handle_t pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
int blocking )
{
@ -858,6 +898,26 @@ static obj_handle_t pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct
}
return 0;
case FSCTL_PIPE_PEEK:
pipe_end_peek( &server->pipe_end );
return 0;
default:
return default_fd_ioctl( fd, code, async, blocking );
}
}
static obj_handle_t pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
int blocking )
{
struct pipe_client *client = get_fd_user( fd );
switch(code)
{
case FSCTL_PIPE_PEEK:
pipe_end_peek( &client->pipe_end );
return 0;
default:
return default_fd_ioctl( fd, code, async, blocking );
}