连接字符串与C++上的const char(结果C++)

Question

需要：用命令连接function GetComputerName (nameBuf)的结果以打开Chormium。

目标：使用正在执行安装的机器的名称创建一个新的配置文件。

Problem：我不知道如何才能完成这一连接，但没有成功地与strcpy和strcat进行连接。

这里我的代码：

int WINAPI WinMain(HINSTANCE inst,HINSTANCE prev,LPSTR cmd,int show)
{

    //Close phpdesktop.exe
    WinExec("taskkill /F /IM phpdesktop.exe", SW_HIDE);
    //Sleep
    Sleep(500);
    //Open phpdesktop.exe mini server 
    WinExec("phpdesktop.exe -S 127.0.0.1:54007 -t www -c php.ini", SW_HIDE);
    //Sleep    
    Sleep(500);

    //Get computer name
    TCHAR nameBuf[MAX_COMPUTERNAME_LENGTH + 2];
    DWORD nameBufSize;

    nameBufSize = sizeof nameBuf - 1;
    if (GetComputerName(nameBuf, &nameBufSize) == TRUE) 
    {
       //How to make the concatenation result nameBuf GetComputerName function with the command of Chromium.                  
       WinExec(strcpy("chromium\\ChromiumPortable -app=http://127.0.0.1:54007/ --profile-directory=", nameBuf), SW_HIDE);
    }

    //Return 
    return 0;
}

--

Pastbin：http://pastebin.com/N1eyAfGV

Answer 1

如果您不想使用第二个缓冲区，请尝试如下

THAR nameBuf[254 + 2]={0};
DWORD nameBufSize;
strcpy(nameBuf,"chromium\\ChromiumPortable -app=http://127.0.0.1:54007/ --profile-directory=");
nameBufSize = sizeof nameBuf - 1;
int index = strlen(nameBuf);
if (GetComputerName(&nameBuf[index], &nameBufSize) == TRUE) 
{
   WinExec(nameBuf, SW_HIDE);
}

Answer 2

进入strcpy的const char *调用未定义的行为

std::string s = "chromium\\ChromiumPortable ...";
s += nameBuf;

WinExec(s.c_str(), SW_HIDE);

Answer 3

试一试：

TCHAR command[1024];
strcpy(command, "chromium\\ChromiumPortable -app=http://127.0.0.1:54007/ --profile-directory=");
strcat(command,nameBuf);
WinExec(command, SW_HIDE);