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[SETUPAPI] GetDeviceInstanceKeyPath: Fix temporary buffer allocation, add missing code paths and fix registry paths.

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This should fix parts of CORE-13944.
This commit is contained in:
Eric Kohl 2017-11-05 17:31:34 +01:00
parent f65b294f21
commit d57b0ef91e
1 changed files with 31 additions and 15 deletions
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46
dll/win32/setupapi/cfgmgr.c
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@ -213,6 +213,14 @@ GetDeviceInstanceKeyPath(
TRACE("GetDeviceInstanceKeyPath()\n");
/* Allocate a buffer for the device id */
pszBuffer = MyMalloc(300 * sizeof(WCHAR));
if (pszBuffer == NULL)
{
ERR("MyMalloc() failed\n");
return CR_OUT_OF_MEMORY;
}
if (ulFlags & CM_REGISTRY_SOFTWARE)
{
/* Software Key Path */
@ -229,7 +237,7 @@ GetDeviceInstanceKeyPath(
L"%s\\%s\\%s\\%s",
L"System\\CurrentControlSet\\Hardware Profiles",
L"Current",
L"System\\CurrentControlSet\\Control\\Enum",
L"System\\CurrentControlSet\\Enum",
pszBuffer);
}
else
@ -238,13 +246,30 @@ GetDeviceInstanceKeyPath(
L"%s\\%04lu\\%s\\%s",
L"System\\CurrentControlSet\\Hardware Profiles",
ulHardwareProfile,
L"System\\CurrentControlSet\\Control\\Enum",
L"System\\CurrentControlSet\\Enum",
pszBuffer);
}
}
else if (ulFlags & CM_REGISTRY_USER)
{
wsprintfW(pszKeyPath,
L"%s\\%s",
L"System\\CurrentControlSet\\Enum",
pszDeviceInst);
wcscpy(pszInstancePath,
L"Device Parameters");
}
else
{
ret = CR_CALL_NOT_IMPLEMENTED;
SplitDeviceInstanceId(pszDeviceInst,
pszBuffer,
pszInstancePath);
wsprintfW(pszKeyPath,
L"%s\\%s",
L"System\\CurrentControlSet\\Enum",
pszBuffer);
}
}
else
@ -253,15 +278,6 @@ GetDeviceInstanceKeyPath(
ulTransferLength = 300 * sizeof(WCHAR);
ulLength = 300 * sizeof(WCHAR);
pszBuffer = MyMalloc(ulTransferLength);
if (pszBuffer == NULL)
{
ERR("MyMalloc() failed\n");
ret = CR_OUT_OF_MEMORY;
goto done;
}
ret = PNP_GetDeviceRegProp(BindingHandle,
pszDeviceInst,
CM_DRP_DRIVER,
@ -5288,13 +5304,13 @@ CM_Open_DevNode_Key_Ex(
if (ret != CR_SUCCESS)
goto done;
TRACE("pszKeyPath: %S\n", pszKeyPath);
TRACE("pszInstancePath: %S\n", pszInstancePath);
ERR("pszKeyPath: %S\n", pszKeyPath);
ERR("pszInstancePath: %S\n", pszInstancePath);
wcscat(pszKeyPath, L"\\");
wcscat(pszKeyPath, pszInstancePath);
TRACE("pszKeyPath: %S\n", pszKeyPath);
ERR("pszKeyPath: %S\n", pszKeyPath);
if (hMachine == NULL)
{