cfgmgr.c

来自「一个类似windows」· C语言代码 · 共 2,242 行 · 第 1/5 页
2,242 行
    if (!GuidToString(ClassGuid, pszKeyName))
        return CR_INVALID_DATA;

    *pulLength = MAX_GUID_STRING_LEN;

    return CR_SUCCESS;
}


/***********************************************************************
 * CM_Get_Class_NameA [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Class_NameA(
    LPGUID ClassGuid, PCHAR Buffer, PULONG pulLength, ULONG ulFlags)
{
    TRACE("%p %p %p %lx\n", ClassGuid, Buffer, pulLength, ulFlags);
    return CM_Get_Class_Name_ExA(ClassGuid, Buffer, pulLength, ulFlags,
                                 NULL);
}


/***********************************************************************
 * CM_Get_Class_NameW [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Class_NameW(
    LPGUID ClassGuid, PWCHAR Buffer, PULONG pulLength, ULONG ulFlags)
{
    TRACE("%p %p %p %lx\n", ClassGuid, Buffer, pulLength, ulFlags);
    return CM_Get_Class_Name_ExW(ClassGuid, Buffer, pulLength, ulFlags,
                                 NULL);
}


/***********************************************************************
 * CM_Get_Class_Name_ExA [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Class_Name_ExA(
    LPGUID ClassGuid, PCHAR Buffer, PULONG pulLength, ULONG ulFlags,
    HMACHINE hMachine)
{
    WCHAR szBuffer[MAX_CLASS_NAME_LEN];
    CONFIGRET ret = CR_SUCCESS;
    ULONG ulLength;
    ULONG ulOrigLength;

    TRACE("%p %p %p %lx %lx\n",
          ClassGuid, Buffer, pulLength, ulFlags, hMachine);

    if (ClassGuid == NULL || Buffer == NULL || pulLength == NULL)
        return CR_INVALID_POINTER;

    ulOrigLength = *pulLength;
    *pulLength = 0;

    ulLength = MAX_CLASS_NAME_LEN;
    ret = CM_Get_Class_Name_ExW(ClassGuid, szBuffer, &ulLength,
                                ulFlags, hMachine);
    if (ret == CR_SUCCESS)
    {
        if (WideCharToMultiByte(CP_ACP,
                                0,
                                szBuffer,
                                ulLength,
                                Buffer,
                                ulOrigLength,
                                NULL,
                                NULL) == 0)
            ret = CR_FAILURE;
        else
            *pulLength = lstrlenA(Buffer) + 1;
    }

    return ret;
}


/***********************************************************************
 * CM_Get_Class_Name_ExW [SETUPAPI.@]
 */
CONFIGRET WINAPI
CM_Get_Class_Name_ExW(
    LPGUID ClassGuid, PWCHAR Buffer, PULONG pulLength, ULONG ulFlags,
    HMACHINE hMachine)
{
    WCHAR szGuidString[MAX_GUID_STRING_LEN];
    RPC_BINDING_HANDLE BindingHandle = NULL;

    TRACE("%p %p %p %lx %lx\n",
          ClassGuid, Buffer, pulLength, ulFlags, hMachine);

    if (ClassGuid == NULL || Buffer == NULL || pulLength == NULL)
        return CR_INVALID_POINTER;

    if (ulFlags != 0)
        return CR_INVALID_FLAG;

    if (!GuidToString(ClassGuid, szGuidString))
        return CR_INVALID_DATA;

    TRACE("Guid %s\n", debugstr_w(szGuidString));

    if (hMachine != NULL)
    {
        BindingHandle = ((PMACHINE_INFO)hMachine)->BindingHandle;
        if (BindingHandle == NULL)
            return CR_FAILURE;
    }
    else
    {
        if (!PnpGetLocalHandles(&BindingHandle, NULL))
            return CR_FAILURE;
    }

    return PNP_GetClassName(BindingHandle,
                            szGuidString,
                            Buffer,
                            pulLength,
                            ulFlags);
}


/***********************************************************************
 * CM_Get_Depth [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Depth(
    PULONG pulDepth, DEVINST dnDevInst, ULONG ulFlags)
{
    TRACE("%p %lx %lx\n", pulDepth, dnDevInst, ulFlags);
    return CM_Get_Depth_Ex(pulDepth, dnDevInst, ulFlags, NULL);
}


/***********************************************************************
 * CM_Get_Depth_Ex [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Depth_Ex(
    PULONG pulDepth, DEVINST dnDevInst, ULONG ulFlags, HMACHINE hMachine)
{
    RPC_BINDING_HANDLE BindingHandle = NULL;
    HSTRING_TABLE StringTable = NULL;
    LPWSTR lpDevInst;

    TRACE("%p %lx %lx %lx\n",
          pulDepth, dnDevInst, ulFlags, hMachine);

    if (pulDepth == NULL)
        return CR_INVALID_POINTER;

    if (dnDevInst == 0)
        return CR_INVALID_DEVINST;

    if (ulFlags != 0)
        return CR_INVALID_FLAG;

    if (hMachine != NULL)
    {
        BindingHandle = ((PMACHINE_INFO)hMachine)->BindingHandle;
        if (BindingHandle == NULL)
            return CR_FAILURE;

        StringTable = ((PMACHINE_INFO)hMachine)->StringTable;
        if (StringTable == 0)
            return CR_FAILURE;
    }
    else
    {
        if (!PnpGetLocalHandles(&BindingHandle, &StringTable))
            return CR_FAILURE;
    }

    lpDevInst = StringTableStringFromId(StringTable, dnDevInst);
    if (lpDevInst == NULL)
        return CR_INVALID_DEVNODE;

    return PNP_GetDepth(BindingHandle,
                        lpDevInst,
                        pulDepth,
                        ulFlags);
}


/***********************************************************************
 * CM_Get_DevNode_Registry_PropertyA [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_DevNode_Registry_PropertyA(
    DEVINST dnDevInst, ULONG ulProperty, PULONG pulRegDataType,
    PVOID Buffer, PULONG pulLength, ULONG ulFlags)
{
    TRACE("%lx %lu %p %p %p %lx\n",
          dnDevInst, ulProperty, pulRegDataType, Buffer, pulLength, ulFlags);

    return CM_Get_DevNode_Registry_Property_ExA(dnDevInst, ulProperty,
                                                pulRegDataType, Buffer,
                                                pulLength, ulFlags, NULL);
}


/***********************************************************************
 * CM_Get_DevNode_Registry_PropertyW [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_DevNode_Registry_PropertyW(
    DEVINST dnDevInst, ULONG ulProperty, PULONG pulRegDataType,
    PVOID Buffer, PULONG pulLength, ULONG ulFlags)
{
    TRACE("%lx %lu %p %p %p %lx\n",
          dnDevInst, ulProperty, pulRegDataType, Buffer, pulLength, ulFlags);

    return CM_Get_DevNode_Registry_Property_ExW(dnDevInst, ulProperty,
                                                pulRegDataType, Buffer,
                                                pulLength, ulFlags, NULL);
}


/***********************************************************************
 * CM_Get_DevNode_Registry_Property_ExA [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_DevNode_Registry_Property_ExA(
    DEVINST dnDevInst, ULONG ulProperty, PULONG pulRegDataType,
    PVOID Buffer, PULONG pulLength, ULONG ulFlags, HMACHINE hMachine)
{
    PVOID BufferW;
    ULONG LengthW;
    ULONG RegDataType = REG_NONE;
    CONFIGRET ret;

    TRACE("%lx %lu %p %p %p %lx %lx\n",
          dnDevInst, ulProperty, pulRegDataType, Buffer, pulLength,
          ulFlags, hMachine);

    if (!pulLength)
        return CR_INVALID_POINTER;

    LengthW = *pulLength * sizeof(WCHAR);
    BufferW = HeapAlloc(GetProcessHeap(), 0, LengthW);

    if (!BufferW)
        return CR_OUT_OF_MEMORY;

    ret = CM_Get_DevNode_Registry_Property_ExW(dnDevInst,
                                               ulProperty,
                                               &RegDataType,
                                               BufferW,
                                               &LengthW,
                                               ulFlags,
                                               hMachine);

    if (ret == CR_SUCCESS)
    {
        if (RegDataType == REG_SZ || RegDataType == REG_EXPAND_SZ)
        {
            /* Do W->A conversion */
            *pulLength = WideCharToMultiByte(CP_ACP,
                                             0,
                                             BufferW,
                                             lstrlenW(BufferW) + 1,
                                             Buffer,
                                             *pulLength,
                                             NULL,
                                             NULL);
            if (*pulLength == 0)
                ret = CR_FAILURE;
        }
        else
        {
            /* Directly copy the value */
            if (LengthW <= *pulLength)
                memcpy(Buffer, BufferW, LengthW);
            else
            {
                *pulLength = LengthW;
                ret = CR_BUFFER_SMALL;
            }
        }
    }

    if (pulRegDataType)
        *pulRegDataType = RegDataType;

    HeapFree(GetProcessHeap(), 0, BufferW);

    return ret;
}


/***********************************************************************
 * CM_Get_DevNode_Registry_Property_ExW [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_DevNode_Registry_Property_ExW(
    DEVINST dnDevInst, ULONG ulProperty, PULONG pulRegDataType,
    PVOID Buffer, PULONG pulLength, ULONG ulFlags, HMACHINE hMachine)
{
    RPC_BINDING_HANDLE BindingHandle = NULL;
    HSTRING_TABLE StringTable = NULL;
    CONFIGRET ret = CR_SUCCESS;
    LPWSTR lpDevInst;
    ULONG ulDataType = 0;
    ULONG ulTransferLength = 0;

    TRACE("%lx %lu %p %p %p %lx %lx\n",
          dnDevInst, ulProperty, pulRegDataType, Buffer, pulLength,
          ulFlags, hMachine);

    if (dnDevInst == 0)
        return CR_INVALID_DEVNODE;

    if (ulProperty < CM_DRP_MIN || ulProperty > CM_DRP_MAX)
        return CR_INVALID_PROPERTY;

    /* pulRegDataType is optional */

    /* Buffer is optional */

    if (pulLength == NULL)
        return CR_INVALID_POINTER;

    if (*pulLength == 0)
        return CR_INVALID_POINTER;

    if (ulFlags != 0)
        return CR_INVALID_FLAG;

    if (hMachine != NULL)
    {
        BindingHandle = ((PMACHINE_INFO)hMachine)->BindingHandle;
        if (BindingHandle == NULL)
            return CR_FAILURE;

        StringTable = ((PMACHINE_INFO)hMachine)->StringTable;
        if (StringTable == 0)
            return CR_FAILURE;
    }
    else
    {
        if (!PnpGetLocalHandles(&BindingHandle, &StringTable))
            return CR_FAILURE;
    }

    lpDevInst = StringTableStringFromId(StringTable, dnDevInst);
    if (lpDevInst == NULL)
        return CR_INVALID_DEVNODE;

    ulTransferLength = *pulLength;
    ret = PNP_GetDeviceRegProp(BindingHandle,
                               lpDevInst,
                               ulProperty,
                               &ulDataType,
                               Buffer,
                               &ulTransferLength,
                               pulLength,
                               ulFlags);
    if (ret == CR_SUCCESS)
    {
        if (pulRegDataType != NULL)
            *pulRegDataType = ulDataType;
    }

    return ret;
}


/***********************************************************************
 * CM_Get_DevNode_Status [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_DevNode_Status(
    PULONG pulStatus, PULONG pulProblemNumber, DEVINST dnDevInst,
    ULONG ulFlags)
{
    TRACE("%p %p %lx %lx\n",
          pulStatus, pulProblemNumber, dnDevInst, ulFlags);
    return CM_Get_DevNode_Status_Ex(pulStatus, pulProblemNumber, dnDevInst,
                                    ulFlags, NULL);
}


/***********************************************************************
 * CM_Get_DevNode_Status_Ex [SETUPAPI.@]
 */
CONFIGRET WINAPI
CM_Get_DevNode_Status_Ex(
    PULONG pulStatus, PULONG pulProblemNumber, DEVINST dnDevInst,
    ULONG ulFlags, HMACHINE hMachine)
{
    RPC_BINDING_HANDLE BindingHandle = NULL;
    HSTRING_TABLE StringTable = NULL;
    LPWSTR lpDevInst;

    TRACE("%p %p %lx %lx %lx\n",
          pulStatus, pulProblemNumber, dnDevInst, ulFlags, hMachine);

    if (pulStatus == NULL || pulProblemNumber == NULL)
        return CR_INVALID_POINTER;

    if (dnDevInst == 0)
        return CR_INVALID_DEVINST;

    if (ulFlags != 0)
        return CR_INVALID_FLAG;

    if (hMachine != NULL)
    {
        BindingHandle = ((PMACHINE_INFO)hMachine)->BindingHandle;
        if (BindingHandle == NULL)
            return CR_FAILURE;

        StringTable = ((PMACHINE_INFO)hMachine)->StringTable;
        if (StringTable == 0)
            return CR_FAILURE;
    }
    else
    {
        if (!PnpGetLocalHandles(&BindingHandle, &StringTable))
            return CR_FAILURE;
    }

    lpDevInst = StringTableStringFromId(StringTable, dnDevInst);
    if (lpDevInst == NULL)
        return CR_INVALID_DEVNODE;

    return PNP_GetDeviceStatus(BindingHandle,
                               lpDevInst,
                               pulStatus,
                               pulProblemNumber,
                               ulFlags);
}


/***********************************************************************
 * CM_Get_Device_IDA [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Device_IDA(
    DEVINST dnDevInst, PCHAR Buffer, ULONG BufferLen, ULONG ulFlags)
{
    TRACE("%lx %p %ld %ld\n",
          dnDevInst, Buffer, BufferLen, ulFlags);
    return CM_Get_Device_ID_ExA(dnDevInst, Buffer, BufferLen, ulFlags, NULL);
}


/***********************************************************************
 * CM_Get_Device_IDW [SETUPAPI.@]
 */
CONFIGRET WINAPI CM_Get_Device_IDW(
    DEVINST dnDevInst, PWCHAR Buffer, ULONG BufferLen, ULONG ulFlags)
{
    TRACE("%lx %p %ld %ld\n",
          dnDevInst, Buffer, BufferLen, ulFlags);
    return CM_Get_Device_ID_ExW(dnDevInst, Buffer, BufferLen, ulFlags, NULL);
}
cfgmgr.c - 源码说明

本页面展示了「一个类似windows」中的 cfgmgr.c 源码文件，采用 C语言编程语言编写，共 2,242 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。
虫虫下载站收录了大量与windows相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。
⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?