putting variables together in system

This is a discussion on putting variables together in system within the C++ Programming forums, part of the General Programming Boards category; I'm trying to get a net send function workin in console.. heres my source Code: int main() { cout<<"Enter IP ...

  1. #1
    Flash Animator, OF DOOOOM bluehead's Avatar
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    putting variables together in system

    I'm trying to get a net send function workin in console.. heres my source
    Code:
    int main()
    {
    	cout<<"Enter IP address>"; // ASKS for IP
    	char ip[16];
    	cin>>ip; //PUTS IP in the variable
    	cout<<"\nEnter a message>"; //ASKS for message
    	char message[225];
    	cin.ignore(1,'\n'); //Ignores the \n
    	cin.getline(message, sizeof (message)); //GEts the message
    	cout<<"\nSending.."; //Just tells it its sending
    	return 0;
    }
    I'm trying to use
    system("net send (inputed IP) (inputed MESSAGE)");
    but i dont know how to get the inputed IP or message into the system command.

    by the way, this is in console if you cant figure out
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  2. #2
    RoD
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    Anything you put within the quotes for the system argument is taken as a literal, it wont work.

  3. #3
    Flash Animator, OF DOOOOM bluehead's Avatar
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    yes, i know that. I tried this:

    system("net send ", ip, message);

    but it says SYSTEM DOES NOT HAVE 3 ARGUEMENTS TO PASS or something close to it.

    is there anyway to make this possible?
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  4. #4
    Pursuing knowledge confuted's Avatar
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    check into sprintf()
    Away.

  5. #5
    carry on JaWiB's Avatar
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    You could just use store "Net send [ip] [message]" in a char array and use that as the argument for system()
    "Think not but that I know these things; or think
    I know them not: not therefore am I short
    Of knowing what I ought."
    -John Milton, Paradise Regained (1671)

    "Work hard and it might happen."
    -XSquared

  6. #6
    Flash Animator, OF DOOOOM bluehead's Avatar
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    Thanks alot, sprintf works just fine
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  7. #7
    C++ Developer XSquared's Avatar
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    >>You could just use store "Net send [ip] [message]" in a char array
    Read confuted's post again. That's exactly what he said.

    And, for some strange reason, I feel like being nice today. Clicky
    Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah

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  8. #8
    RoD
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    i got booted but while i tried to get back i whipped this up, its the easiest solution imo:

    Code:
    //Steven Billington
    //Main.cpp
    //rod@cprogramming.com
    
    #include <iostream>
    #include <stdlib>
    #include <conio>
    #include <fstream>
    
    using namespace std;
    
    int main ()
    {
        char ip[100];
        char message[250];
    
        ofstream file;
    
        cout<<"\nEnter IP: ";
        cin.getline(ip, 99);
        cout<<"Message: ";
        cin.getline(message, 249);
    
        //open (or create) batch file. 
        file.open("c:\\temp.bat", ios::out,0);
    
        cout << "Creating Batch file please wait...." << endl;
    
        //write the net send command and its arguments
        //to the batch to be executed
        file<<"net send " << ip << " " << message << " ";
        
        //close the batch file
        file.close();
        
        //execute batch file
        system("c:\\temp.bat");
    
        return(0);
    }

  9. #9
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    Try this before you go makin batch files:

    Code:
    #include <iostream>
    #include <cstdlib>
    #include <sstream>
    
    using namespace std;
    
    int main( int argc, char** argv ) {
    
    	string IP, Message;
    	ostringstream NetCmd;
    
    	cout <<"Enter IP: " <<flush;
    	cin >>IP;
    
    	cout <<"Enter message: " <<endl;
    
    	cin.ignore( 2, '\n' );
    	getline( cin, Message );
    
    	NetCmd <<"net send " <<IP <<" " <<Message;
    
    	system( NetCmd.str().c_str() );
    }
    I can't really test to see if the net command works because I'm runnin linux right now, but you get the general idea hopefully.

  10. #10
    Flash Animator, OF DOOOOM bluehead's Avatar
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    Aight i got my program working;;

    it asks for an IP address, then a message, and # of messages. I attached the file.

    (i'm so mad i have closed networking i cant use it except for LAN computers hehehe)

    Anyways you cant do much bad with this program, because you need the IP of the person you want to do it to, and you both need open networking. so dont get mad at me for making this ><

    PS it was also a test to test out the system(""); function
    Attached Files Attached Files
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  11. #11
    RoD
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    you can make it easier and have the program auto execute the command that tells who all connected pc's and ip's are, forget the cmd tho.

  12. #12
    Flash Animator, OF DOOOOM bluehead's Avatar
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    oo that would be real cool.. but i'm running on a LAN only networked internet, so i can only use net on my brother, sister, and mom+dad's computer
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  13. #13
    carry on JaWiB's Avatar
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    I believe its "net view" but not sure
    "Think not but that I know these things; or think
    I know them not: not therefore am I short
    Of knowing what I ought."
    -John Milton, Paradise Regained (1671)

    "Work hard and it might happen."
    -XSquared

  14. #14
    RoD
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    thats the one. it lists the names of those connected, the name of the pc. You use this rather than the IP. So say the program loads and shows the following:

    Bob
    Bill
    Jon

    Now you can just type Bob in IP/NAME:

    So make two functions, one for the batch to do that in the load of the prog, and the other we already have just needs to be placed in its own function.

  15. #15
    Flash Animator, OF DOOOOM bluehead's Avatar
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    Oh yea by the way, does the system function return any value if lets say the net send doesn't send?
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

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