VC执行Cmd命令,并获取结果

VC执行Cmd命令,并获取结果

参考:https://blog.csdn.net/VonSdite/article/details/81295056

方法一:使用popen

#include <stdio.h>
#include <string.h>

// 描述:execmd函数执行命令,并将结果存储到result字符串数组中
// 参数:cmd表示要执行的命令,  result是执行的结果存储的字符串数组
// 函数执行成功返回1,失败返回0
#pragma warning(disable:4996)
int execmd(char* cmd, char* result) {
    char buffer[128]; //定义缓冲区
    FILE* pipe = _popen(cmd, "r"); //打开管道,并执行命令
    if (!pipe)
        return 0; //返回0表示运行失败
    while (!feof(pipe)) {
        if (fgets(buffer, 128, pipe)) { //将管道输出到result中
            strcat(result, buffer);
        }
    }
    _pclose(pipe); //关闭管道
    return 1; //返回1表示运行成功
}

int main(void)
{
    char SystemInstallDate[] = "c:\\windows\\system32\\systeminfo|findstr 初始安装日期";
    char PCserialnumber[] = "wmic bios get serialnumber";
    char MACAddress[] = "ipconfig /all|findstr 物理地址";
    char IPAddress[] = "ipconfig /all|findstr IPv4";
    char MACIPAddress[] = "wmic nicconfig get IPAddress,MACAddress";
    char HDserial[] = "wmic diskdrive get Caption,SerialNumber";

    char res[1024] = { 0 };
    execmd("wmic diskdrive get SerialNumber", res);
}
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方法二:使用Windows API    CreatePipe  CreateProcess

#include <Windows.h>
#include <string>
std::string GetExeCmdResult(const wchar_t* pszCmd)
{
    // 创建匿名管道
    SECURITY_ATTRIBUTES sa = { sizeof(SECURITY_ATTRIBUTES), NULL, TRUE };
    HANDLE hRead, hWrite;
    if (!CreatePipe(&hRead, &hWrite, &sa, 0))
    {
        return "";
    }

    // 设置命令行进程启动信息(以隐藏方式启动命令并定位其输出到hWrite)
    STARTUPINFO si = { sizeof(STARTUPINFO) };
    GetStartupInfo(&si);
    si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
    si.wShowWindow = SW_HIDE;
    si.hStdError = hWrite;
    si.hStdOutput = hWrite;

    // 启动命令行
    // 注意 CreateProcess 的第二个参数是 可修改的字符串指针(使用字符数组即可),不可以是字符串常量
    PROCESS_INFORMATION pi;
    wchar_t szCmd[1024] = { 0 };
    wcscpy_s(szCmd, 1024, pszCmd);
    if (!CreateProcessW(NULL, szCmd, NULL, NULL, TRUE, NULL, NULL, NULL, &si, &pi))
    {
        return ("Cannot create process");
    }

    // 立即关闭hWrite
    CloseHandle(hWrite);

    // 读取命令行返回值
    std::string strRet;
    char buff[1024] = { 0 };
    DWORD dwRead = 0;
    while (ReadFile(hRead, buff, 1024, &dwRead, NULL))
    {
        strRet += std::string(buff, dwRead);
    }
    CloseHandle(hRead);

    return strRet;
}


int main(void)
{
    char SystemInstallDate[] = "c:\\windows\\system32\\systeminfo|findstr 初始安装日期";
    char PCserialnumber[] = "wmic bios get serialnumber";
    char MACAddress[] = "ipconfig /all|findstr 物理地址";
    char IPAddress[] = "ipconfig /all|findstr IPv4";
    char MACIPAddress[] = "wmic nicconfig get IPAddress,MACAddress";
    char HDserial[] = "wmic diskdrive get Caption,SerialNumber";

    //char res[1024] = { 0 };
    //execmd("wmic diskdrive get SerialNumber", res);
    std::string sRet = GetExeCmdResult(L"wmic diskdrive get SerialNumber");
}
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-----------------------------

另外,只执行命令,或者说调用另一个进程exe

#include <Windows.h>
#include <string>
//------------------------------------------------
// 执行命令行
// 例如 ExeCmdLine(L"notepad.exe D:/BugReport.txt");
//      ExeCmdLine(L"calc");
//      ExeCmdLine(L"notepad");
//      ExeCmdLine(L"ipconfig /all");
//      ExeCmdLine(L"wmic diskdrive get SerialNumber");
// 注意:在控制台exe,执行该函数后会有cmd的窗口。在MFC exe 中,cmd的窗口会一闪而过。
//------------------------------------------------
bool ExeCmdLine(const wchar_t* pszCmd)
{
    //STARTUPINFO si = { sizeof(si) };
    //si.dwFlags = STARTF_USESHOWWINDOW;
    //si.wShowWindow = SW_SHOW;
    STARTUPINFO si = { sizeof(si) };
    PROCESS_INFORMATION pi = { 0 };
    // 启动命令行
    // 注意 CreateProcess 的第二个参数是 可修改的字符串指针(使用字符数组即可),不可以是字符串常量 例如:"notepad D:\\1.txt"
    wchar_t szCmd[1024] = { 0 };
    wcscpy_s(szCmd, 1024, pszCmd);
    if (!CreateProcessW(NULL, szCmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
    {
        //return ("Cannot create process");
        return false;
    }

    CloseHandle(pi.hThread);
    CloseHandle(pi.hProcess);
    return true;
}
View Code

 

posted @ 2020-10-17 13:21  htj10  阅读(1412)  评论(0编辑  收藏  举报
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