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Annotation of 43BSDReno/lib/libc/sys/chroot.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)chroot.2    6.4 (Berkeley) 1/25/89
        !             6: .\"
        !             7: .TH CHROOT 2 "January 25, 1989"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: chroot \- change root directory
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .ft B
        !            14: chroot(dirname)
        !            15: char *dirname;
        !            16: .ft R
        !            17: .fi
        !            18: .SH DESCRIPTION
        !            19: .I Dirname
        !            20: is the address of the pathname of a directory, terminated by a null byte.
        !            21: .I Chroot
        !            22: causes this directory
        !            23: to become the root directory,
        !            24: the starting point for path names beginning with ``/''.
        !            25: .PP
        !            26: In order for a directory to become the root directory
        !            27: a process must have execute (search) access to the directory.
        !            28: .PP
        !            29: It should be noted that
        !            30: .I chroot
        !            31: has no effect on the process's current directory.
        !            32: .PP
        !            33: This call is restricted to the super-user.
        !            34: .SH "RETURN VALUE
        !            35: Upon successful completion, a value of 0 is returned.  Otherwise,
        !            36: a value of \-1 is returned and \fIerrno\fP is set to indicate an error.
        !            37: .SH ERRORS
        !            38: .I Chroot
        !            39: will fail and the root directory will be unchanged if
        !            40: one or more of the following are true:
        !            41: .TP 15
        !            42: [ENOTDIR]
        !            43: A component of the path name is not a directory.
        !            44: .TP 15
        !            45: [EINVAL]
        !            46: The pathname contains a character with the high-order bit set.
        !            47: .TP 15
        !            48: [ENAMETOOLONG]
        !            49: A component of a pathname exceeded 255 characters,
        !            50: or an entire path name exceeded 1023 characters.
        !            51: .TP 15
        !            52: [ENOENT]
        !            53: The named directory does not exist.
        !            54: .TP 15
        !            55: [EACCES]
        !            56: Search permission is denied for any component of the path name.
        !            57: .TP 15
        !            58: [ELOOP]
        !            59: Too many symbolic links were encountered in translating the pathname.
        !            60: .TP 15
        !            61: [EFAULT]
        !            62: .I Path
        !            63: points outside the process's allocated address space.
        !            64: .TP 15
        !            65: [EIO]
        !            66: An I/O error occurred while reading from or writing to the file system.
        !            67: .SH "SEE ALSO"
        !            68: chdir(2)

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