The OpenNET Project / Index page

[ новости /+++ | форум | wiki | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

chroot (2)
  • chroot (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • chroot (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • chroot (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • chroot (2) ( Solaris man: Системные вызовы )
  • chroot (2) ( FreeBSD man: Системные вызовы )
  • chroot (2) ( Русские man: Системные вызовы )
  • >> chroot (2) ( Linux man: Системные вызовы )
  • chroot (8) ( FreeBSD man: Команды системного администрирования )
  • chroot (8) ( Linux man: Команды системного администрирования )
  • Ключ chroot обнаружен в базе ключевых слов.
  •  

    NAME

    chroot - change root directory
     
    

    SYNOPSIS

    #include <unistd.h>

    int chroot(const char *path);  

    DESCRIPTION

    chroot() changes the root directory of the calling process to that specified in path. This directory will be used for pathnames beginning with /. The root directory is inherited by all children of the calling process.

    Only a privileged process (Linux: one with the CAP_SYS_CHROOT capability) may call chroot().

    This call changes an ingredient in the pathname resolution process and does nothing else.

    This call does not change the current working directory, so that after the call aq.aq can be outside the tree rooted at aq/aq. In particular, the superuser can escape from a "chroot jail" by doing:

    
        mkdir foo; chroot foo; cd ..
    

    This call does not close open file descriptors, and such file descriptors may allow access to files outside the chroot tree.  

    RETURN VALUE

    On success, zero is returned. On error, -1 is returned, and errno is set appropriately.  

    ERRORS

    Depending on the file system, other errors can be returned. The more general errors are listed below:
    EACCES
    Search permission is denied on a component of the path prefix. (See also path_resolution(7).)
    EFAULT
    path points outside your accessible address space.
    EIO
    An I/O error occurred.
    ELOOP
    Too many symbolic links were encountered in resolving path.
    ENAMETOOLONG
    path is too long.
    ENOENT
    The file does not exist.
    ENOMEM
    Insufficient kernel memory was available.
    ENOTDIR
    A component of path is not a directory.
    EPERM
    The caller has insufficient privilege.
     

    CONFORMING TO

    SVr4, 4.4BSD, SUSv2 (marked LEGACY). This function is not part of POSIX.1-2001.  

    NOTES

    A child process created via fork(2) inherits its parent's root directory. The root directory is left unchanged by execve(2).

    FreeBSD has a stronger jail() system call.  

    SEE ALSO

    chdir(2), path_resolution(7)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    CONFORMING TO
    NOTES
    SEE ALSO
    COLOPHON


    Поиск по тексту MAN-ов: 




    Спонсоры:
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2021 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру