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HOW TO get TTY id from a c programm

Hi experts,

I am new to linux/c programming and I am trying to get TTY id from my c program. Something like this:

int TTYID = get_ttyid();

How do I do that?

Regards,
_dino_

See man ttyname. Sample follows:

Code:

#include <stdio.h>

#include <sys/types.h>





static const char tty_usage[] = "tty\n"

#ifndef BB_FEATURE_TRIVIAL_HELP

        "\nPrint the file name of the terminal connected to standard input.\n\n"

        "Options:\n"

        "\t-s\tprint nothing, only return an exit status\n"

#endif

        ;



extern int tty_main(int argc, char **argv)

{

        char *tty;



        if (argc > 1) {

                if (argv[1][0] != '-' || argv[1][1] != 's')

                        usage(tty_usage);

        } else {

                tty = ttyname(0);

                if (tty)

                        puts(tty);

                else

                        puts("not a tty");

        }

        return(isatty(0) ? TRUE : FALSE);

}