grantpt(3)                 Library Functions Manual                 grantpt(3)

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       grantpt - <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?>
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       <?><?><?><?><?> C (libc, -lc)

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       #define _XOPEN_SOURCE
       #include <stdlib.h>

       int grantpt(int fd);

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   (<?><?>. feature_test_macros(7)):

       grantpt():
           <?><?><?><?><?><?><?> <?> glibc 2.24:
               _XOPEN_SOURCE >= 500
           <?> <?><?><?><?><?><?> glibc 2.23 <?> <?><?><?><?><?> <?><?><?><?><?><?>:
               _XOPEN_SOURCE

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       The grantpt()  function changes the mode and owner of the slave
       pseudoterminal device corresponding to the master pseudoterminal
       referred to by the file descriptor fd.  The user ID of the slave is set
       to the real UID of the calling process.  The group ID is set to an
       unspecified value (e.g., tty).  The mode of the slave is set to 0620
       (crw--w----).

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       <?><?><?><?><?><?><?><?> SIGCHLD.

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       When successful, grantpt()  returns 0.  Otherwise, it returns -1 and
       sets errno to indicate the error.

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       EACCES <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
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              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>.

       EBADF  <?><?><?><?><?><?><?><?> fd <?><?> <?><?><?><?><?><?><?><?>
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              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>.

       EINVAL <?><?><?><?><?><?><?><?> fd <?><?><?><?><?><?><?><?><?>, <?><?>
              <?><?> <?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?>
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       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> attributes(7).

       +----------------------------+----------------------------------------------------------+--------------------------+
       |<?><?><?><?><?><?><?><?><?> | <?><?><?><?><?><?><?>                                    | <?><?><?><?><?><?><?><?> |
       +----------------------------+----------------------------------------------------------+--------------------------+
       |grantpt()                   | <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> | MT-Safe locale           |
       +----------------------------+----------------------------------------------------------+--------------------------+
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       POSIX.1-2008.

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       glibc 2.1.  POSIX.1-2001.

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       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> UNIX 98
       (<?><?><?><?><?><?><?><?> pts(4)).

       Historical systems implemented this function via a set-user-ID helper
       binary called "pt_chown".  glibc on Linux before glibc 2.33 could do so
       as well, in order to support configurations with only BSD
       pseudoterminals; this support has been removed.  On modern systems this
       is either a no-op --with permissions configured on pty allocation, as
       is the case on Linux-- or an ioctl(2).

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       open(2), posix_openpt(3), ptsname(3), unlockpt(3), pts(4), pty(7)

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       <?><?><?><?><?><?><?><?><?><?>(<?>) Azamat Hackimov
       <azamat.hackimov@gmail.com>, Dmitry Bolkhovskikh <d20052005@yandex.ru>,
       Vladislav <ivladislavefimov@gmail.com>, Yuri Kozlov
       <yuray@komyakino.ru>, <?><?><?><?> <?><?><?><?><?><?>
       <pavia00@gmail.com> <?> Kirill Rekhov <krekhov.dev@gmail.com>

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       <?><?><?><?><?><?><?><?> GNU (GNU General Public License - GPL,
       <https://www.gnu.org/licenses/gpl-3.0.html> <?><?><?><?><?><?> 3
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       <<debian-l10n-russian@lists.debian.org>>.

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                           23 <?><?><?><?> 2024 <?>.                grantpt(3)