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server: Return STATUS_BUFFER_OVERFLOW in pipe_end_peek for partial reads in message mode. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2018-10-20 19:18:06 +02:00 committed by Alexandre Julliard
parent c1d21f1ae4
commit ee28e0107c
3 changed files with 22 additions and 2 deletions
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1
dlls/kernel32/sync.c
View File

@ -1531,6 +1531,7 @@ BOOL WINAPI PeekNamedPipe( HANDLE hPipe, LPVOID lpvBuffer, DWORD cbBuffer,
status = NtFsControlFile( hPipe, 0, NULL, NULL, &io, FSCTL_PIPE_PEEK, NULL, 0,
buffer, FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[cbBuffer] ) );
if (status == STATUS_BUFFER_OVERFLOW) status = STATUS_SUCCESS;
if (!status)
{
ULONG read_size = io.Information - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );

22
dlls/ntdll/tests/pipe.c
View File

@ -927,6 +927,24 @@ static void read_pipe_test(ULONG pipe_flags, ULONG pipe_type)
ResetEvent( event );
ret = WriteFile( write, buffer, 2, &written, NULL );
ok(ret && written == 2, "WriteFile error %d\n", GetLastError());
memset( &iosb, 0xcc, sizeof(iosb) );
status = NtFsControlFile( read, NULL, NULL, NULL, &iosb, FSCTL_PIPE_PEEK, NULL, 0, buffer,
FIELD_OFFSET(FILE_PIPE_PEEK_BUFFER, Data[1]) );
if (pipe_type & PIPE_TYPE_MESSAGE)
{
ok( status == STATUS_BUFFER_OVERFLOW || status == STATUS_PENDING,
"FSCTL_PIPE_PEEK returned %x\n", status );
ok( U(iosb).Status == STATUS_BUFFER_OVERFLOW, "wrong status %x\n", U(iosb).Status );
}
else
{
ok( !status || status == STATUS_PENDING, "FSCTL_PIPE_PEEK returned %x\n", status );
ok( U(iosb).Status == 0, "wrong status %x\n", U(iosb).Status );
}
ok( iosb.Information == FIELD_OFFSET(FILE_PIPE_PEEK_BUFFER, Data[1]),
"wrong info %lu\n", iosb.Information );
status = NtReadFile( read, event, apc, &apc_count, &iosb, buffer, 1, NULL, NULL );
if (pipe_type & PIPE_READMODE_MESSAGE)
{
@ -1330,7 +1348,7 @@ static void test_pipe_state(HANDLE pipe, BOOL is_server, DWORD state)
expected_status = STATUS_PIPE_BROKEN;
break;
}
todo_wine_if(expected_status == STATUS_BUFFER_OVERFLOW || expected_status == STATUS_PIPE_DISCONNECTED)
todo_wine_if(expected_status == STATUS_PIPE_DISCONNECTED)
ok(status == expected_status, "status = %x, expected %x in %s state %u\n",
status, expected_status, is_server ? "server" : "client", state);
if (!status)
@ -1454,7 +1472,7 @@ static void test_pipe_with_data_state(HANDLE pipe, BOOL is_server, DWORD state)
expected_status = STATUS_BUFFER_OVERFLOW;
break;
}
todo_wine_if(expected_status == STATUS_BUFFER_OVERFLOW || expected_status == STATUS_PIPE_DISCONNECTED)
todo_wine_if(expected_status == STATUS_PIPE_DISCONNECTED)
ok(status == expected_status, "status = %x, expected %x in %s state %u\n",
status, expected_status, is_server ? "server" : "client", state);
if (status == STATUS_BUFFER_OVERFLOW)

1
server/named_pipe.c
View File

@ -921,6 +921,7 @@ static int pipe_end_peek( struct pipe_end *pipe_end )
if (write_pos == reply_size) break;
}
}
if (message_length > reply_size) set_error( STATUS_BUFFER_OVERFLOW );
return 1;
}