PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

PTSNAME(3P)               POSIX Programmer's Manual              PTSNAME(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       ptsname — get name of the slave pseudo-terminal device

SYNOPSIS         top

       #include <stdlib.h>

       char *ptsname(int fildes);

DESCRIPTION         top

       The ptsname() function shall return the name of the slave pseudo-
       terminal device associated with a master pseudo-terminal device. The
       fildes argument is a file descriptor that refers to the master
       device. The ptsname() function shall return a pointer to a string
       containing the pathname of the corresponding slave device.

       The ptsname() function need not be thread-safe.

RETURN VALUE         top

       Upon successful completion, ptsname() shall return a pointer to a
       string which is the name of the pseudo-terminal slave device. Upon
       failure, ptsname() shall return a null pointer. This could occur if
       fildes is an invalid file descriptor or if the slave device name does
       not exist in the file system.

       The application shall not modify the string returned. The returned
       pointer might be invalidated or the string content might be
       overwritten by a subsequent call to ptsname().

ERRORS         top

       No errors are defined.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       See the RATIONALE section for posix_openpt(3p).

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       grantpt(3p), open(3p), posix_openpt(3p), ttyname(3p), unlockpt(3p)

       The Base Definitions volume of POSIX.1‐2008, stdlib.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) In the event of any discrepancy between this version and
       the original IEEE and The Open Group Standard, the original IEEE and
       The Open Group Standard is the referee document. The original
       Standard can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the
       source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                         PTSNAME(3P)