Node:BSD Terminal Modes, Next:Line Control, Previous:Terminal Modes, Up:Low-Level Terminal Interface

BSD Terminal Modes

The usual way to get and set terminal modes is with the functions described in Terminal Modes. However, on some systems you can use the BSD-derived functions in this section to do some of the same thing. On many systems, these functions do not exist. Even with the GNU C library, the functions simply fail with errno = ENOSYS with many kernels, including Linux.

The symbols used in this section are declared in sgtty.h.

struct sgttyb

Data Type

This structure is an input or output parameter list for gtty and stty. char sg_ispeed Line speed for input char sg_ospeed Line speed for output char sg_erase Erase character char sg_kill Kill character int sg_flags Various flags

int gtty (int filedes, struct sgttyb *attributes)

Function

This function gets the attributes of a terminal. gtty sets *attributes to describe the terminal attributes of the terminal which is open with file descriptor filedes.

int stty (int filedes, struct sgttyb * attributes)

Function

This function sets the attributes of a terminal. stty sets the terminal attributes of the terminal which is open with file descriptor filedes to those described by *filedes.