Thread: Print computer/system name

Code:

#include<windows.h>
char buffer[256];
DWORD len = 256;
GetComputerName(buffer, &len);
cout<<buffer<<endl;

Originally Posted by jinhao

Code:

#include<windows.h>
char buffer[256];
DWORD len = 256;
GetComputerName(buffer, &len);
cout<<buffer<<endl;

Thank you VERY much. Worked perfectly.

Next time, say which OS/Compiler you're using.
It was just a lucky guess that you were using windows.

Originally Posted by Salem

Next time, say which OS/Compiler you're using.
It was just a lucky guess that you were using windows.

Ah. Thanks. I'll be sure to state that next time. .

heihei, i am so lucky

Thanks for the previous help, guys. However, I must compile it this code on a Unix machine now. I'm using the standard Unix build, cc xxx.cpp.

How should I print out the system name using that? I assume that I should include a different header file than windows.h.

Thanks in advance.

Originally Posted by xErath

Hum.. I dunno .. but you could try to acess the environement variables and try to see if there's something that mathces the computer name

Code:

#include <iostream>

int main(int argc, char *argv[], char *env[]){
    int i;
    for(i=0;env[i];i++){
        std::cout<<env[i]<<std::endl;
    }
    return 0;
}

NOTE: this main declaration ISN'T standard, although it's provided with many compilers as extension., I think. Please correct me if wrong.

http://www.opengroup.org/onlinepubs/...bd/envvar.html
http://www.cplusplus.com/ref/cstdlib/getenv.html

That looks good. Although I'm not sure whether it'll be fine for Unix. I will try it once I get to the office Friday.

Any other ideas, guys? .

Originally Posted by xErath

Hum.. I dunno .. but you could try to acess the environement variables and try to see if there's something that mathces the computer name

Code:

#include <iostream>

int main(int argc, char *argv[], char *env[]){
    int i;
    for(i=0;env[i];i++){
        std::cout<<env[i]<<std::endl;
    }
    return 0;
}

NOTE: this main declaration ISN'T standard, although it's provided with many compilers as extension., I think. Please correct me if wrong.

http://www.opengroup.org/onlinepubs/...bd/envvar.html
http://www.cplusplus.com/ref/cstdlib/getenv.html

Yeah, that doesn't seem to be working on Unix machines . Any other ideas, guys? .

Code:

NAME
       uname − get name and information about current kernel

SYNOPSIS
       #include <sys/utsname.h>

       int uname(struct utsname *buf);

Originally Posted by Salem

Code:

NAME
       uname − get name and information about current kernel

SYNOPSIS
       #include <sys/utsname.h>

       int uname(struct utsname *buf);

I get this error - fatal error C1083: Cannot open include file: 'sys/utsname.h': No such file or directory
Error executing cl.exe.

Oh please - you asked for a unix answer and I gave you one.
Then you turn around and try and compile it with a windows compiler!

Originally Posted by Salem

Oh please - you asked for a unix answer and I gave you one.
Then you turn around and try and compile it with a windows compiler!

It has to work on both .

Tough - it won't, nor can it ever work on both.

Certainly, there's no standard way to find out.

I suppose you could find some very common library somewhere, which might happen to tell you which machine you're on...