Alexandre Julliard : ole32: Don' t use in-memory structure layouts to build the wire data, define wire-specific structures instead.
Module: wine Branch: master Commit: a8ffa9bace4940862f62d2c1834df86119fe9002 URL: http://source.winehq.org/git/wine.git/?a=commit;h=a8ffa9bace4940862f62d2c183... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Tue Apr 6 18:07:59 2010 +0200 ole32: Don't use in-memory structure layouts to build the wire data, define wire-specific structures instead. --- dlls/ole32/rpc.c | 56 +++++++++++++++++++++++++++++++++++++---------------- 1 files changed, 39 insertions(+), 17 deletions(-) diff --git a/dlls/ole32/rpc.c b/dlls/ole32/rpc.c index 0daa4ab..75b6b1f 100644 --- a/dlls/ole32/rpc.c +++ b/dlls/ole32/rpc.c @@ -144,6 +144,28 @@ typedef struct /* [size_is((size+7)&~7)] */ unsigned char data[1]; } WIRE_ORPC_EXTENT; +typedef struct +{ + ULONG size; + ULONG reserved; + unsigned char extent[1]; +} WIRE_ORPC_EXTENT_ARRAY; + +typedef struct +{ + ULONG version; + ULONG flags; + ULONG reserved1; + GUID cid; + unsigned char extensions[1]; +} WIRE_ORPCTHIS; + +typedef struct +{ + ULONG flags; + unsigned char extensions[1]; +} WIRE_ORPCTHAT; + struct channel_hook_entry { struct list entry; @@ -503,10 +525,10 @@ static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, extensions_size = ChannelHooks_ServerGetSize(&message_state->channel_hook_info, &channel_hook_data, &channel_hook_count, &extension_count); - msg->BufferLength += FIELD_OFFSET(ORPCTHAT, extensions) + 4; + msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD); if (extensions_size) { - msg->BufferLength += FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent) + 2*sizeof(DWORD) + extensions_size; + msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]); if (extension_count & 1) msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]); } @@ -523,7 +545,7 @@ static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, status = I_RpcGetBuffer(msg); orpcthat = msg->Buffer; - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPCTHAT, extensions); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions); orpcthat->flags = ORPCF_NULL /* FIXME? */; @@ -533,10 +555,10 @@ static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, if (extensions_size) { - ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer; + WIRE_ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer; orpc_extent_array->size = extension_count; orpc_extent_array->reserved = 0; - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent); /* NDR representation of orpc_extent_array->extent */ *(DWORD *)msg->Buffer = 1; msg->Buffer = (char *)msg->Buffer + sizeof(DWORD); @@ -645,10 +667,10 @@ static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, extensions_size = ChannelHooks_ClientGetSize(&message_state->channel_hook_info, &channel_hook_data, &channel_hook_count, &extension_count); - msg->BufferLength += FIELD_OFFSET(ORPCTHIS, extensions) + 4; + msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD); if (extensions_size) { - msg->BufferLength += FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent) + 2*sizeof(DWORD) + extensions_size; + msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]); if (extension_count & 1) msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]); } @@ -703,7 +725,7 @@ static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, if (status == RPC_S_OK) { orpcthis = msg->Buffer; - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPCTHIS, extensions); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions); orpcthis->version.MajorVersion = COM_MAJOR_VERSION; orpcthis->version.MinorVersion = COM_MINOR_VERSION; @@ -720,7 +742,7 @@ static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer; orpc_extent_array->size = extension_count; orpc_extent_array->reserved = 0; - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent); /* NDR representation of orpc_extent_array->extent */ *(DWORD *)msg->Buffer = 1; msg->Buffer = (char *)msg->Buffer + sizeof(DWORD); @@ -1152,8 +1174,8 @@ static HRESULT unmarshal_ORPC_EXTENT_ARRAY(RPC_MESSAGE *msg, const char *end, DWORD pointer_id; DWORD i; - memcpy(extensions, msg->Buffer, FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent)); - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPC_EXTENT_ARRAY, extent); + memcpy(extensions, msg->Buffer, FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent)); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent); if ((const char *)msg->Buffer + 2 * sizeof(DWORD) > end) return RPC_E_INVALID_HEADER; @@ -1205,14 +1227,14 @@ static HRESULT unmarshal_ORPCTHIS(RPC_MESSAGE *msg, ORPCTHIS *orpcthis, *first_wire_orpc_extent = NULL; - if (msg->BufferLength < FIELD_OFFSET(ORPCTHIS, extensions) + 4) + if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD)) { ERR("invalid buffer length\n"); return RPC_E_INVALID_HEADER; } - memcpy(orpcthis, msg->Buffer, FIELD_OFFSET(ORPCTHIS, extensions)); - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPCTHIS, extensions); + memcpy(orpcthis, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHIS, extensions)); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions); if ((const char *)msg->Buffer + sizeof(DWORD) > end) return RPC_E_INVALID_HEADER; @@ -1256,14 +1278,14 @@ static HRESULT unmarshal_ORPCTHAT(RPC_MESSAGE *msg, ORPCTHAT *orpcthat, *first_wire_orpc_extent = NULL; - if (msg->BufferLength < FIELD_OFFSET(ORPCTHAT, extensions) + 4) + if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD)) { ERR("invalid buffer length\n"); return RPC_E_INVALID_HEADER; } - memcpy(orpcthat, msg->Buffer, FIELD_OFFSET(ORPCTHAT, extensions)); - msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(ORPCTHAT, extensions); + memcpy(orpcthat, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHAT, extensions)); + msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions); if ((const char *)msg->Buffer + sizeof(DWORD) > end) return RPC_E_INVALID_HEADER;
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Alexandre Julliard