COHERENT manpages
This page displays the COHERENT manpage for termios [POSIX extended terminal interface].
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termios -- Overview POSIX extended terminal interface The name termios describes a group of routines that POSIX Standard defines to extend the termio interface to terminals. termios includes the following routines: cfgetispeed()..Get input speed cfgetospeed()..Get output speed cfsetispeed()..Set input speed cfsetospeed()..Set output speed tcdrain()......Drain output to a device tcflow().......Control flow on a terminal device tcflush()......Flush data being exchanged with a terminal tcgetattr()....Get terminal attributes tcsendbreak()..Send a break to a terminal tcsetattr()....Set terminal attributes Each is described in its own Lexicon entry. Under COHERENT, all are defined as macros in header file <termios.h>. Example The following example returns the input and output speeds for the terminal device that you now are using: #include <unistd.h> #include <stdlib.h> #include <stdio.h> #include <termios.h> int main() { struct termios term; int speed; if (tcgetattr(STDIN_FILENO, &term) < 0) { fprintf(stderr, "tcgetattr error"); exit(EXIT_FAILURE); } speed = cfgetispeed(&term); printf("tty line input speed is "); if (speed == B50) printf("50 baud\n"); else if (speed == B75) printf("75 baud\n"); else if (speed == B110) printf("110 baud\n"); else if (speed == B134) printf("134 baud\n"); else if (speed == B150) printf("150 baud\n"); else if (speed == B200) printf("200 baud\n"); else if (speed == B300) printf("300 baud\n"); else if (speed == B600) printf("600 baud\n"); else if (speed == B1200) printf("1200 baud\n"); else if (speed == B1800) printf("1800 baud\n"); else if (speed == B2400) printf("2400 baud\n"); else if (speed == B4800) printf("4800 baud\n"); else if (speed == B9600) printf("9600 baud\n"); else if (speed == B19200) printf("19200 baud\n"); else if (speed == B38400) printf("38400 baud\n"); else printf("unknown speed\n"); speed = cfgetospeed(&term); printf("tty line output speed is "); if (speed == B50) printf("50 baud\n"); else if (speed == B75) printf("75 baud\n"); else if (speed == B110) printf("110 baud\n"); else if (speed == B134) printf("134 baud\n"); else if (speed == B150) printf("150 baud\n"); else if (speed == B200) printf("200 baud\n"); else if (speed == B300) printf("300 baud\n"); else if (speed == B600) printf("600 baud\n"); else if (speed == B1200) printf("1200 baud\n"); else if (speed == B1800) printf("1800 baud\n"); else if (speed == B2400) printf("2400 baud\n"); else if (speed == B4800) printf("4800 baud\n"); else if (speed == B9600) printf("9600 baud\n"); else if (speed == B19200) printf("19200 baud\n"); else if (speed == B38400) printf("38400 baud\n"); else printf("unknown speed\n"); exit(EXIT_SUCCESS); } See Also cfgetispeed(), cfgetospeed(), cfsetispeed(), cfsetospeed(), Programming COHERENT, tcdrain(), tcflow(), tcflush(), tcgetattr(), tcsendbreak(), tcsetattr(), termio, termios.h Notes If a program that uses termios has set the termio flag ISIG (which enables signals) and receives character SUSP (normally <ctrl-Z>), it sends the signal SIGTSTP to the current process group. By default, termios then discards SUSP. Character SUSP, as its name implies, tells a program to suspend operation and recede into the background. Please note that because COHERENT does not yet support job control, SUSP at present will do nothing.