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- /*
- * Copy the existing mode of a terminal to another terminal.
- * Typically this is used to initialize a slave pseudo-terminal
- * to the state of the terminal associated with standard input.
- *
- * We provide two functions to do this in 2 separate steps.
- */
-
- #include <termio.h>
-
- /* See the termio(7) man page for all the details */
- static struct termio tty_termio; /* System V's structure */
-
- /*
- * Get a copy of the tty modes for a given file descriptor.
- * The copy is then used later by tty_setmode() below.
- */
-
- int
- tty_getmode(oldfd)
- int oldfd; /* typically an actual terminal device */
- {
- if (ioctl(oldfd, TCGETA, (char *) &tty_termio) < 0)
- return(-1);
-
- return(0);
- }
-
- /*
- * Set the tty modes for a given file descriptor.
- * We set the modes from the values saved by tty_getmode() above.
- */
-
- int
- tty_setmode(newfd)
- int newfd; /* typically a pseudo-terminal slave device */
- {
- if (ioctl(newfd, TCSETA, (char *) &tty_termio) < 0)
- return(-1);
-
- return(0);
- }
-