How to use pseudo-terminals in Linux with C?

Question

I\'m trying to figure out how to use pseudo-terminal\'s in linux, essentially I want to create a telnetd clone, something I mentioned in an earlier question.

I under

Answer 1

include

#include 

#include 

#define _XOPEN_SOURCE

#include 

int main(int argc, char **argv) 
{
char *slavename;
int masterfd;
masterfd = open("/dev/ptmx", O_RDWR);
grantpt(masterfd);
unlockpt(masterfd);
slavename = ptsname(masterfd);
...
}

I posted simple example of demonstrating pseudo terminal master slave concept. please go through this link to get clear understanding of terminals in Linux http://www.linusakesson.net/programming/tty/