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getpt

NAME

getpt - open the pseudo-terminal master (PTM)

SYNOPSIS

#include <stdlib.h>
int getpt(void)

DESCRIPTION

getpt() opens a pseudo-terminal master and returns its file descriptor. It is equivalent to open(/dev/ptmx,O_RDWR|O_NOCTTY) on Linux systems, though the pseudo-terminal master is located elsewhere on some systems that use GNU Libc.

RETURN VALUE

getpt() returns an open file descriptor upon successful completion. Otherwise, it returns -1 and sets errno to indicate the error.

CONFORMING TO

getpt() is specific to GNU Libc.

SEE ALSO

grantpt(3), ptsname(3), posix_openpt(3), unlockpt(3), ptmx(4), pty(7)