GRANTPT man page on Manjaro

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

       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.

       grantpt — grant access to the slave pseudo-terminal device

       #include <stdlib.h>

       int grantpt(int fildes);

       The grantpt() function shall change the mode and ownership of the slave
       pseudo-terminal device associated with its master pseudo-terminal coun‐
       terpart. The fildes argument is a file descriptor that refers to a mas‐
       ter  pseudo-terminal  device.  The user ID of the slave shall be set to
       the real UID of the calling process and the group ID shall be set to an
       unspecified  group ID. The permission mode of the slave pseudo-terminal
       shall be set to readable and writable by the owner, and writable by the

       The  behavior  of the grantpt() function is unspecified if the applica‐
       tion has installed a signal handler to catch SIGCHLD signals.

       Upon successful completion, grantpt() shall  return  0;	otherwise,  it
       shall return −1 and set errno to indicate the error.

       The grantpt() function may fail if:

       EBADF  The fildes argument is not a valid open file descriptor.

       EINVAL The  fildes argument is not associated with a master pseudo-ter‐
	      minal device.

       EACCES The corresponding slave  pseudo-terminal	device	could  not  be

       The following sections are informative.



       See the RATIONALE section for posix_openpt().


       open(), posix_openpt(), ptsname(), unlockpt()

       The Base Definitions volume of POSIX.1‐2008, <stdlib.h>

       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 Electri‐
       cal  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 .

       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.ker‐ .

IEEE/The Open Group		     2013			   GRANTPT(3P)

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