Can I Use String In System();

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Can i use string in function system();?

Normally I do system("something");
How can I do something like that:

string c;
cin>>c;
system(c);

Posted 15-Nov-14 3:30am

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Andreas Gieriet · Answer 1 · 2014-11-15T03:39:00

Solution 2

See string::c_str[^].
If this is a wise application is another question - looks like a security-hole. You execute here any command with the access rights of the program running system().
Regards
Andi

Posted 15-Nov-14 3:39am

Andreas Gieriet

DamithSL · Answer 2 · 2014-11-15T03:37:00

Solution 1

refer: Using variables in system() function c++ [^]

Posted 15-Nov-14 3:37am

DamithSL

Richard MacCutchan · Answer 3 · 2014-11-15T04:21:00

It is just the same, a string variable or string constant produce exactly the same results. However, you need to add some code to check exactly what is contained in the string before you pass it to system, to protect from hacking. Something like:

C++

string strCommand;
cin >> strCommand;
// code to validate the command, and ensure
// it is not used maliciously. E.g. "format c:"
//
system(strCommand.c_str());