TIOCCONS(2const) — Справочная страница Linux

TIOCCONS(2const)                                        TIOCCONS(2const)

НАЗВАНИЕ

       TIOCCONS - redirecting console output

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <asm/termbits.h>  /* Definition of TIOCCONS */
       #include <sys/ioctl.h>

       int ioctl(int fd, TIOCCONS);

ОПИСАНИЕ

       Redirect output that would have gone to /dev/console or /dev/tty0
       to the given terminal.  If that was a pseudoterminal master, send
       it to the slave.

       Only a process with the CAP_SYS_ADMIN capability may do this.

       If output was redirected already, then EBUSY is returned, but
       redirection can be stopped by using this ioctl with fd pointing
       at /dev/console or /dev/tty0.

ЗНАЧЕНИЕ ВОЗВРАТА

       On success, 0 is returned.  On error, -1 is returned, and errno
       is set to indicate the error.

ОШИБКИ

       EBUSY  Output was redirected already.

       EPERM  Insufficient permission.

ИСТОРИЯ

       Before Linux 2.6.10, anybody can do this as long as the output
       was not redirected yet; CAP_SYS_ADMIN was not necessary.

СМОТРИТЕ ТАКЖЕ

       ioctl(2), ioctl_tty(2)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
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       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
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       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
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Linux man-pages 6.9.1          2024-06-13               TIOCCONS(2const)

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