Jacek Caban : server: Return STATUS_BUFFER_OVERFLOW in pipe_end_peek for partial reads in message mode.
Alexandre Julliard
julliard at winehq.org
Mon Oct 22 15:38:43 CDT 2018
Module: wine
Branch: master
Commit: ee28e0107cdacf85833d4b250ca6f7a29286ceb7
URL: https://source.winehq.org/git/wine.git/?a=commit;h=ee28e0107cdacf85833d4b250ca6f7a29286ceb7
Author: Jacek Caban <jacek at codeweavers.com>
Date: Sat Oct 20 19:18:06 2018 +0200
server: Return STATUS_BUFFER_OVERFLOW in pipe_end_peek for partial reads in message mode.
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/kernel32/sync.c | 1 +
dlls/ntdll/tests/pipe.c | 22 ++++++++++++++++++++--
server/named_pipe.c | 1 +
3 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/dlls/kernel32/sync.c b/dlls/kernel32/sync.c
index b05cfda..fe70565 100644
--- a/dlls/kernel32/sync.c
+++ b/dlls/kernel32/sync.c
@@ -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 );
diff --git a/dlls/ntdll/tests/pipe.c b/dlls/ntdll/tests/pipe.c
index e04672b..51024a2 100644
--- a/dlls/ntdll/tests/pipe.c
+++ b/dlls/ntdll/tests/pipe.c
@@ -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)
diff --git a/server/named_pipe.c b/server/named_pipe.c
index 3e0da4f..0d98bf8 100644
--- a/server/named_pipe.c
+++ b/server/named_pipe.c
@@ -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;
}
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