Huw Davies : ole32: Properly align HMETAFILEPICT marshal data.
Module: wine Branch: master Commit: 718fb9deb37b3c63078c039395b2a55721d90a07 URL: http://source.winehq.org/git/wine.git/?a=commit;h=718fb9deb37b3c63078c039395... Author: Huw Davies <huw(a)codeweavers.com> Date: Fri Dec 8 10:26:51 2017 +0000 ole32: Properly align HMETAFILEPICT marshal data. Signed-off-by: Huw Davies <huw(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/ole32/tests/usrmarshal.c | 26 ++++++++++++++------------ dlls/ole32/usrmarshal.c | 10 +++++++--- 2 files changed, 21 insertions(+), 15 deletions(-) diff --git a/dlls/ole32/tests/usrmarshal.c b/dlls/ole32/tests/usrmarshal.c index 7ab23ad..3919395 100644 --- a/dlls/ole32/tests/usrmarshal.c +++ b/dlls/ole32/tests/usrmarshal.c @@ -502,12 +502,12 @@ static void test_marshal_HMETAFILEPICT(void) GlobalUnlock(hmfp); init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, NULL, 0, MSHCTX_DIFFERENTMACHINE); - size = HMETAFILEPICT_UserSize(&umcb.Flags, 0, &hmfp); - ok(size > 20, "size should be at least 20 bytes, not %d\n", size); + size = HMETAFILEPICT_UserSize(&umcb.Flags, 1, &hmfp); + ok(size > 24, "size should be at least 24 bytes, not %d\n", size); buffer = HeapAlloc(GetProcessHeap(), 0, size); init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, buffer, size, MSHCTX_DIFFERENTMACHINE); - buffer_end = HMETAFILEPICT_UserMarshal(&umcb.Flags, buffer, &hmfp); - wirehmfp = buffer; + buffer_end = HMETAFILEPICT_UserMarshal(&umcb.Flags, buffer + 1, &hmfp); + wirehmfp = buffer + 4; ok(*(DWORD *)wirehmfp == WDT_REMOTE_CALL, "wirestgm + 0x0 should be WDT_REMOTE_CALL instead of 0x%08x\n", *(DWORD *)wirehmfp); wirehmfp += sizeof(DWORD); ok(*(DWORD *)wirehmfp == (DWORD)(DWORD_PTR)hmfp, "wirestgm + 0x4 should be hmf instead of 0x%08x\n", *(DWORD *)wirehmfp); @@ -528,16 +528,16 @@ static void test_marshal_HMETAFILEPICT(void) wirehmfp += sizeof(DWORD); /* Note use (buffer_end - buffer) instead of size here, because size is an * overestimate with native */ - ok(*(DWORD *)wirehmfp == (buffer_end - buffer - 0x28), "wirestgm + 0x20 should be size - 0x34 instead of 0x%08x\n", *(DWORD *)wirehmfp); + ok(*(DWORD *)wirehmfp == (buffer_end - buffer - 0x2c), "wirestgm + 0x20 should be size - 0x34 instead of 0x%08x\n", *(DWORD *)wirehmfp); wirehmfp += sizeof(DWORD); - ok(*(DWORD *)wirehmfp == (buffer_end - buffer - 0x28), "wirestgm + 0x24 should be size - 0x34 instead of 0x%08x\n", *(DWORD *)wirehmfp); + ok(*(DWORD *)wirehmfp == (buffer_end - buffer - 0x2c), "wirestgm + 0x24 should be size - 0x34 instead of 0x%08x\n", *(DWORD *)wirehmfp); wirehmfp += sizeof(DWORD); ok(*(WORD *)wirehmfp == 1, "wirehmfp + 0x28 should be 1 instead of 0x%08x\n", *(DWORD *)wirehmfp); /* ... rest of data not tested - refer to tests for GetMetaFileBits * at this point */ init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, buffer, size, MSHCTX_DIFFERENTMACHINE); - HMETAFILEPICT_UserUnmarshal(&umcb.Flags, buffer, &hmfp2); + HMETAFILEPICT_UserUnmarshal(&umcb.Flags, buffer + 1, &hmfp2); ok(hmfp2 != NULL, "HMETAFILEPICT didn't unmarshal\n"); HeapFree(GetProcessHeap(), 0, buffer); init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, NULL, 0, MSHCTX_DIFFERENTMACHINE); @@ -551,12 +551,13 @@ static void test_marshal_HMETAFILEPICT(void) hmfp = NULL; init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, NULL, 0, MSHCTX_DIFFERENTMACHINE); - size = HMETAFILEPICT_UserSize(&umcb.Flags, 0, &hmfp); - ok(size == 8, "size should be 8 bytes, not %d\n", size); + size = HMETAFILEPICT_UserSize(&umcb.Flags, 1, &hmfp); + ok(size == 12, "size should be 12 bytes, not %d\n", size); buffer = HeapAlloc(GetProcessHeap(), 0, size); init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, buffer, size, MSHCTX_DIFFERENTMACHINE); - HMETAFILEPICT_UserMarshal(&umcb.Flags, buffer, &hmfp); - wirehmfp = buffer; + buffer_end = HMETAFILEPICT_UserMarshal(&umcb.Flags, buffer + 1, &hmfp); + ok(buffer_end == buffer + size, "got %p buffer %p\n", buffer_end, buffer); + wirehmfp = buffer + 4; ok(*(DWORD *)wirehmfp == WDT_REMOTE_CALL, "wirestgm + 0x0 should be WDT_REMOTE_CALL instead of 0x%08x\n", *(DWORD *)wirehmfp); wirehmfp += sizeof(DWORD); ok(*(DWORD *)wirehmfp == (DWORD)(DWORD_PTR)hmfp, "wirestgm + 0x4 should be hmf instead of 0x%08x\n", *(DWORD *)wirehmfp); @@ -564,7 +565,8 @@ static void test_marshal_HMETAFILEPICT(void) hmfp2 = NULL; init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, buffer, size, MSHCTX_DIFFERENTMACHINE); - HMETAFILEPICT_UserUnmarshal(&umcb.Flags, buffer, &hmfp2); + buffer_end = HMETAFILEPICT_UserUnmarshal(&umcb.Flags, buffer + 1, &hmfp2); + ok(buffer_end == buffer + size, "got %p buffer %p\n", buffer_end, buffer); ok(hmfp2 == NULL, "NULL HMETAFILE didn't unmarshal\n"); HeapFree(GetProcessHeap(), 0, buffer); init_user_marshal_cb(&umcb, &stub_msg, &rpc_msg, NULL, 0, MSHCTX_DIFFERENTMACHINE); diff --git a/dlls/ole32/usrmarshal.c b/dlls/ole32/usrmarshal.c index d773684..63eead1 100644 --- a/dlls/ole32/usrmarshal.c +++ b/dlls/ole32/usrmarshal.c @@ -1291,11 +1291,11 @@ void __RPC_USER HENHMETAFILE_UserFree(ULONG *pFlags, HENHMETAFILE *phEmf) * the first parameter is a ULONG. * This function is only intended to be called by the RPC runtime. */ -ULONG __RPC_USER HMETAFILEPICT_UserSize(ULONG *pFlags, ULONG StartingSize, HMETAFILEPICT *phMfp) +ULONG __RPC_USER HMETAFILEPICT_UserSize(ULONG *pFlags, ULONG size, HMETAFILEPICT *phMfp) { - ULONG size = StartingSize; + TRACE("(%s, %d, &%p)\n", debugstr_user_flags(pFlags), size, *phMfp); - TRACE("(%s, %d, &%p)\n", debugstr_user_flags(pFlags), StartingSize, *phMfp); + ALIGN_LENGTH(size, 3); size += sizeof(ULONG); @@ -1345,6 +1345,8 @@ unsigned char * __RPC_USER HMETAFILEPICT_UserMarshal(ULONG *pFlags, unsigned cha { TRACE("(%s, %p, &%p)\n", debugstr_user_flags(pFlags), pBuffer, *phMfp); + ALIGN_POINTER(pBuffer, 3); + if (LOWORD(*pFlags) == MSHCTX_INPROC) { if (sizeof(HMETAFILEPICT) == 8) @@ -1408,6 +1410,8 @@ unsigned char * __RPC_USER HMETAFILEPICT_UserUnmarshal(ULONG *pFlags, unsigned c TRACE("(%s, %p, %p)\n", debugstr_user_flags(pFlags), pBuffer, phMfp); + ALIGN_POINTER(pBuffer, 3); + fContext = *(ULONG *)pBuffer; pBuffer += sizeof(ULONG);
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Alexandre Julliard