getpt(3) -- Linux man page

 

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

ptmx(4), grantpt(3), unlockpt(3), ptsname(3)