Re: [suse-programming-e] echoing on a socket

alan@ibgames.com writes:

Hi,

I need to turn off the echo on a socket while I get a password.

I tried:

struct termios termios_p; tcgetattr(sd,&termios_p); termios_p.c_lflag &= ~ECHO; tcsetattr(sd,TCSANOW,&termios_p);

where sd is the socket descriptor.

It didn't seem to make any difference. Am I doing something wrong, or is this not the way it is done these days?

Can any one assist, please?

Your socket is not necessarily a terminal (that is what pseudo terminals are for) what exactly is on both sides of this socket? Also you should check the error returns like so: #include #include #include #include int main(void) { struct termios termios_p; int sd = 0; if(isatty(sd)) { fprintf(stderr, "sd is a terminal\n"); } else { fprintf(stderr, "sd is NOT a terminal\n"); } if(tcgetattr(sd,&termios_p)) { perror("tcgetattr failed"); exit(EXIT_FAILURE); } termios_p.c_lflag &= ~ECHO; if(tcsetattr(sd,TCSANOW,&termios_p)) { perror("tcsetattr failed"); exit(EXIT_FAILURE); } return 0; }