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ole32: Make sure to reset the message state if it has been changed in RPC_ExecuteCall before returning. 

Fix the hrFault parameter passed into the ClientNotify function in 
ClientRpcChannelBuffer_SendReceive so that it is correct in the case of 
messages dispatched with PostMessage.
Only unmarshal ORPCTHAT for non-fault packets.
This commit is contained in:
Rob Shearman 2007-01-04 16:55:21 +00:00 committed by Alexandre Julliard
parent d57dc9da0a
commit 2db1d0de38
1 changed files with 36 additions and 18 deletions
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46
dlls/ole32/rpc.c
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@ -740,6 +740,7 @@ static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER ifac
ORPCTHAT orpcthat;
ORPC_EXTENT_ARRAY orpc_ext_array;
WIRE_ORPC_EXTENT *first_wire_orpc_extent = NULL;
HRESULT hrFault = S_OK;
TRACE("(%p) iMethod=%d\n", olemsg, olemsg->iMethod);
@ -836,7 +837,9 @@ static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER ifac
}
ClientRpcChannelBuffer_ReleaseEventHandle(This, params->handle);
if (hr == S_OK) hr = params->hr;
/* for WM shortcut, faults are returned in params->hr */
if (hr == S_OK)
hrFault = params->hr;
status = params->status;
HeapFree(GetProcessHeap(), 0, params);
@ -845,7 +848,21 @@ static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER ifac
orpcthat.flags = ORPCF_NULL;
orpcthat.extensions = NULL;
if (status == RPC_S_OK && msg->BufferLength > FIELD_OFFSET(ORPCTHAT, extensions) + 4)
/* for normal RPC calls, faults are returned in first 4 bytes of the
* buffer */
TRACE("RPC call status: 0x%lx\n", status);
if (status == RPC_S_CALL_FAILED)
hrFault = *(HRESULT *)olemsg->Buffer;
else if (status != RPC_S_OK)
hr = HRESULT_FROM_WIN32(status);
TRACE("hrFault = 0x%08x\n", hrFault);
/* FIXME: this condition should be
* "hr == S_OK && (!hrFault || msg->BufferLength > FIELD_OFFSET(ORPCTHAT, extentions) + 4)"
* but we don't currently reset the message length for PostMessage
* dispatched calls */
if (hr == S_OK && hrFault == S_OK)
{
HRESULT hr2;
char *original_buffer = msg->Buffer;
@ -862,26 +879,22 @@ static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER ifac
else
message_state->prefix_data_len = 0;
if (hr == S_OK)
{
ChannelHooks_ClientNotify(&message_state->channel_hook_info,
msg->DataRepresentation,
first_wire_orpc_extent,
orpcthat.extensions && first_wire_orpc_extent ? orpcthat.extensions->size : 0,
status == RPC_S_CALL_FAILED && msg->BufferLength >= sizeof(HRESULT) ? *(HRESULT *)msg->Buffer : S_OK);
hrFault);
}
/* save away the message state again */
msg->Handle = message_state;
if (hr) return hr;
if (pstatus) *pstatus = status;
TRACE("RPC call status: 0x%lx\n", status);
if (status == RPC_S_OK)
hr = S_OK;
else if (status == RPC_S_CALL_FAILED)
hr = *(HRESULT *)olemsg->Buffer;
else
hr = HRESULT_FROM_WIN32(status);
if (hr == S_OK)
hr = hrFault;
TRACE("-- 0x%08x\n", hr);
@ -1228,12 +1241,16 @@ void RPC_ExecuteCall(struct dispatch_params *params)
params->hr = unmarshal_ORPCTHIS(msg, &orpcthis, &orpc_ext_array, &first_wire_orpc_extent);
if (params->hr != S_OK)
{
msg->Buffer = original_buffer;
goto exit;
}
message_state = HeapAlloc(GetProcessHeap(), 0, sizeof(*message_state));
if (!message_state)
{
params->hr = E_OUTOFMEMORY;
msg->Buffer = original_buffer;
goto exit;
}
@ -1283,11 +1300,11 @@ void RPC_ExecuteCall(struct dispatch_params *params)
{
case SERVERCALL_REJECTED:
params->hr = RPC_E_CALL_REJECTED;
goto exit;
goto exit_reset_state;
case SERVERCALL_RETRYLATER:
#if 0 /* FIXME: handle retries on the client side before enabling this code */
params->hr = RPC_E_RETRY;
goto exit;
goto exit_reset_state;
#else
FIXME("retry call later not implemented\n");
break;
@ -1310,6 +1327,7 @@ void RPC_ExecuteCall(struct dispatch_params *params)
COM_CurrentInfo()->pending_call_count_server--;
COM_CurrentInfo()->causality_id = old_causality_id;
exit_reset_state:
message_state = (struct message_state *)msg->Handle;
msg->Handle = message_state->binding_handle;
msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;