程序化系统调用WDCI意外行为(提升权限)

时间:2015-12-01 03:46:02

标签: c++ process network-programming wmic elevated-privileges

如果我想在Widows上禁用特定NIC,我通常会这样做:

wmic.exe path win32_networkadapter where "NetConnectionID = 'Local Area Connection 2'" call disable

从提升的权限/以管理员命令行提示运行...并且它可以正常工作,生活很美好。

所以我编译了这个简单的C ++ CLI应用程序:

#include "stdafx.h"
#include <string>
#include <iostream>
#include <cstdio>
#include <memory>

#ifndef popen
FILE *__cdecl popen(const char *_Command, const char *_Mode) { return _popen(_Command, _Mode); }
#endif

#ifndef pclose
int __cdecl pclose(FILE *_Stream) { return _pclose(_Stream); }
#endif

std::string exec(const char* cmd) {
    std::shared_ptr<FILE> pipe(popen(cmd, "r"), pclose);
    if (!pipe) return "ERROR";
    char buffer[128];
    std::string result = "";
    while (!feof(pipe.get())) {
        if (fgets(buffer, 128, pipe.get()) != NULL) result += buffer;
    }
    return result;
}

int main() {
    std::cout << exec("wmic path win32_networkadapter where ""NetConnectionID = 'Local Area Connection 2'"" call disable");
    return 0;
}

我从相同的提升权限命令行提示执行...但我得到的回复是:

C:\elevatesdh\Debug>elevatesdh.exe
Invalid Verb.

是什么给出了?

1 个答案:

答案 0 :(得分:1)

我认为你必须改变这一行

std::cout << exec("wmic path win32_networkadapter where ""NetConnectionID = 'Local Area Connection 2'"" call disable");

std::cout << exec("wmic path win32_networkadapter where \"NetConnectionID = 'Local Area Connection 2'\" call disable");

但我可能非常错误......