这个pch.h文件中的这些函数中存在问题 请优化这些函数 使其代码健壮 可读性强 输出完整代码
#include "pch.h"
#include <Windows.h>
#include <stdio.h>
#include <fltUser.h>
#include <stdlib.h>
typedef struct _POC_MESSAGE_HEADER
{
UINT Command;
int Length;
}POC_MESSAGE_HEADER, * PPOC_MESSAGE_HEADER;
typedef struct _POC_GET_MESSAGE
{
FILTER_MESSAGE_HEADER MessageHeader;
POC_MESSAGE_HEADER Message;
}POC_GET_MESSAGE, * PPOC_GET_MESSAGE;
typedef struct _POC_MESSAGE_PROCESS_RULES
{
CHAR ProcessName[320];
ULONG Access;
} POC_MESSAGE_PROCESS_RULES, * PPOC_MESSAGE_PROCESS_RULES;
typedef struct _POC_MESSAGE_SECURE_FODER
{
CHAR SecureFolder[320];
} POC_MESSAGE_SECURE_FODER, * PPOC_MESSAGE_SECURE_FODER;
typedef struct _POC_MESSAGE_SECURE_EXTENSION
{
CHAR Extension[32];
} POC_MESSAGE_SECURE_EXTENSION, * PPOC_MESSAGE_SECURE_EXTENSION;
#define POC_ADD_PROCESS_RULES 9
#define POC_GET_PROCESS_RULES 5
#define POC_GET_FILE_EXTENSION 6
#define POC_GET_SECURE_FOLDER 10
#define MESSAGE_SIZE 4096*10
#define POC_SINGLE_BUFFER_SIZE 400
#define COMMPORTNAME L"\\WXFILTER"
INT PocUserInitCommPort(IN HANDLE* hPort)
{
HRESULT hResult;
hResult = FilterConnectCommunicationPort(COMMPORTNAME, NULL, NULL, NULL, NULL, hPort);
if (hResult != S_OK)
{
return hResult;
}
return 0;
}
INT PocUserSendMessage(IN HANDLE hPort, IN LPVOID lpInBuffer, IN INT Command)
{
if (NULL == lpInBuffer)
{
return 1;
}
HRESULT hResult;
DWORD BytesReturned;
POC_MESSAGE_HEADER MessageHeader = { 0 };
MessageHeader.Command = Command;
MessageHeader.Length = static_cast<int>(strlen((PCHAR)lpInBuffer));
char* Buffer = (char*)malloc(MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
if (NULL == Buffer)
{
return 1;
}
memset(Buffer, 0, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
RtlMoveMemory(Buffer, &MessageHeader, sizeof(MessageHeader));
RtlMoveMemory(Buffer + sizeof(MessageHeader), lpInBuffer, strlen((PCHAR)lpInBuffer));
hResult = FilterSendMessage(hPort, Buffer, MESSAGE_SIZE, NULL, NULL, &BytesReturned);
if (NULL != Buffer)
{
free(Buffer);
Buffer = NULL;
}
if (FAILED(hResult))
{
return hResult;
}
return 0;
}
INT PocUserAddProcessRules(IN HANDLE hPort, IN PCHAR ProcessName, IN UINT Access)
{
if (NULL == ProcessName)
{
return 1;
}
HRESULT hResult;
DWORD BytesReturned;
CHAR InBuffer[520] = { 0 };
POC_MESSAGE_HEADER MessageHeader = { 0 };
MessageHeader.Command = POC_ADD_PROCESS_RULES;
MessageHeader.Length = 320 + sizeof(UINT);
char* Buffer = (char*)malloc(MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
if (NULL == Buffer)
{
return 1;
}
memset(Buffer, 0, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
strncpy_s(InBuffer, sizeof(InBuffer), ProcessName, strlen(ProcessName));
RtlMoveMemory(InBuffer + 320, (PVOID)&Access, sizeof(Access));
RtlMoveMemory(Buffer, &MessageHeader, sizeof(MessageHeader));
RtlMoveMemory(Buffer + sizeof(MessageHeader), InBuffer, 320 + sizeof(UINT));
hResult = FilterSendMessage(hPort, Buffer, MESSAGE_SIZE, NULL, NULL, &BytesReturned);
if (NULL != Buffer)
{
free(Buffer);
Buffer = NULL;
}
if (FAILED(hResult))
{
return hResult;
}
return 0;
}
INT PocUserGetMessage(IN HANDLE hPort, IN OUT UINT* Command)
{
HRESULT hResult = 0;
OVERLAPPED OverLapped = { 0 };
char* Buffer = (char*)malloc(MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
if (NULL == Buffer)
{
return 1;
}
memset(Buffer, 0, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
while (TRUE)
{
hResult = FilterGetMessage(hPort, &((PPOC_GET_MESSAGE)Buffer)->MessageHeader, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER), &OverLapped);
if (FAILED(hResult))
{
free(Buffer);
return hResult;
}
Sleep(1000);
if (((PPOC_GET_MESSAGE)Buffer)->Message.Command != 0)
{
*Command = ((PPOC_GET_MESSAGE)Buffer)->Message.Command;
break;
}
}
if (NULL != Buffer)
{
free(Buffer);
Buffer = NULL;
}
return 0;
}
INT PocUserGetMessageEx(IN HANDLE hPort, IN OUT UINT* Command, IN OUT char* MessageBuffer)
{
HRESULT hResult = 0;
OVERLAPPED OverLapped = { 0 };
int ret = 0;
char* Buffer = (char*)malloc(MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
if (NULL == Buffer)
{
return 1;
}
memset(Buffer, 0, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER));
while (TRUE)
{
hResult = FilterGetMessage(hPort, &((PPOC_GET_MESSAGE)Buffer)->MessageHeader, MESSAGE_SIZE + sizeof(FILTER_MESSAGE_HEADER), &OverLapped);
if (FAILED(hResult))
{
free(Buffer);
return hResult;
}
Sleep(1000);
if (((PPOC_GET_MESSAGE)Buffer)->Message.Command != 0)
{
for (int i = 0; i < MESSAGE_SIZE - sizeof(POC_MESSAGE_HEADER) - 1; i++)
{
if ('\0' == *(Buffer + sizeof(POC_GET_MESSAGE) + i))
{
*(Buffer + sizeof(POC_GET_MESSAGE) + i) = ' ';
}
}
RtlMoveMemory(
MessageBuffer, Buffer + sizeof(POC_GET_MESSAGE),
((PPOC_GET_MESSAGE)Buffer)->Message.Length);
if (POC_GET_PROCESS_RULES == ((PPOC_GET_MESSAGE)Buffer)->Message.Command)
{
ret = ((PPOC_GET_MESSAGE)Buffer)->Message.Length / sizeof(POC_MESSAGE_PROCESS_RULES);
}
else if (POC_GET_FILE_EXTENSION == ((PPOC_GET_MESSAGE)Buffer)->Message.Command)
{
ret = ((PPOC_GET_MESSAGE)Buffer)->Message.Length / sizeof(POC_MESSAGE_SECURE_EXTENSION);
}
else if (POC_GET_SECURE_FOLDER == ((PPOC_GET_MESSAGE)Buffer)->Message.Command)
{
ret = ((PPOC_GET_MESSAGE)Buffer)->Message.Length / sizeof(POC_MESSAGE_SECURE_FODER);
}
*Command = ((PPOC_GET_MESSAGE)Buffer)->Message.Command;
break;
}
}
if (NULL != Buffer)
{
free(Buffer);
Buffer = NULL;
}
return ret;
}
最新发布
本文探讨了预编译头文件(pch)在项目中的合理应用方式，旨在通过有效的pch配置减少编译时间。文章建议将所依赖项目的headers及本项目基本不变的headers放入pch，并提出了一种理想的效果——即当所依赖的项目header文件发生变化时，只导致本项目重新编译；而本项目的header变化则不会引起全项目范围内的重新编译。
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