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serenity/Base/usr/share/man/man2/chroot.md
Sergey Bugaev 718271c9df Base: Document unveil(2) 
Also, escape underscores in chroot_with_mount_flags.
2020-05-04 21:44:50 +02:00

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Name

chroot, chroot_with_mount_flags - change filesystem root

Synopsis

#include <unistd.h>

int chroot(const char* path);
int chroot_with_mount_flags(const char* path, int mount_flags);

Description

chroot() changes the filesystem root of the current process to a new directory specified by path.

chroot_with_mount_flags() additionally applies the given mount_flags to the new root directory of the current process as if it was a separate mount. All the same flags as for mount(2) are accepted, except MS_BIND doesn't make sense for chroots. Additionally, the value -1 is accepted, and makes chroot_with_mount_flags() behave like regular chroot().

Errors

  • EPERM: The current process does not have superuser privileges.
  • EFAULT: path is not in readable memory.

All of the usual path resolution errors may also occur.

See also