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 things. 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.
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)
¶Preliminary: | MT-Safe | AS-Safe | AC-Safe | See POSIX Safety Concepts.
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, const struct sgttyb *attributes)
¶Preliminary: | MT-Safe | AS-Safe | AC-Safe | See POSIX Safety Concepts.
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 *attributes.