1GETPT(3)                   Linux Programmer's Manual                  GETPT(3)
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NAME

6       getpt - open the pseudo-terminal master (PTM)
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SYNOPSIS

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

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

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

25       getpt() is specific to GNU Libc.
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SEE ALSO

28       grantpt(3), ptsname(3), posix_openpt(3), unlockpt(3), ptmx(4), pty(7)
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32PTY Control                       2002-10-09                          GETPT(3)
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