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#include <iostream>
#include <cstdio>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>
std::string exec(const char* cmd)
{
std::array<char, 128> buffer;
std::string result;
auto pipe = popen(cmd, "r");
if (!pipe) throw std::runtime_error("popen() failed!");
while (!feof(pipe))
{
if (fgets(buffer.data(), 128, pipe) != nullptr)
result += buffer.data();
}
auto rc = pclose(pipe);
if (rc == EXIT_SUCCESS)
{
std::cout << "SUCCESS\n";
}
else
{
std::cout << "FAILED\n";
}
return result;
}
using namespace std;
int main()
{
cout<<"Start\n";
std::string res;
res = exec("cp d-oh");
std::cout << "cp stdout res: <" << res << ">" << std::endl;
res = exec("cp d-oh 2>&1");
std::cout << "cp stdout&stderr res: <" << res << ">" << std::endl;
res = exec("echo stdout 2>&1 >&1");
std::cout << "stdout res: <" << res << ">" << std::endl;
res = exec("echo stderr 2>&1 >&2");
std::cout << "stderr res: <" << res << ">" << std::endl;
cout<<"End\n";
return 0;
}
