Permission denied message for parent directory Post: 302288973

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Asking about the permission inherit from the parent directory

LEARN ABOUT OPENDARWIN

chroot

CHROOT(2)						      BSD System Calls Manual							 CHROOT(2)

NAME

     chroot -- change root directory

SYNOPSIS

     #include <unistd.h>

     int
     chroot(const char *dirname);

DESCRIPTION

     Dirname is the address of the pathname of a directory, terminated by an ASCII NUL.  Chroot() causes dirname to become the root directory,
     that is, the starting point for path searches of pathnames beginning with '/'.

     In order for a directory to become the root directory a process must have execute (search) access for that directory.

     If the program is not currently running with an altered root directory, it should be noted that chroot() has no effect on the process's cur-
     rent directory.

     If the program is already running with an altered root directory, the process's current directory is changed to the same new root directory.
     This prevents the current directory from being further up the directory tree than the altered root directory.

     This call is restricted to the super-user.

RETURN VALUES

     Upon successful completion, a value of 0 is returned.  Otherwise, a value of -1 is returned and errno is set to indicate an error.

ERRORS

     Chroot() will fail and the root directory will be unchanged if:

     [ENOTDIR]		A component of the path name is not a directory.

     [ENAMETOOLONG]	A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.

     [ENOENT]		The named directory does not exist.

     [EACCES]		Search permission is denied for any component of the path name.

     [ELOOP]		Too many symbolic links were encountered in translating the pathname.

     [EFAULT]		Path points outside the process's allocated address space.

     [EIO]		An I/O error occurred while reading from or writing to the file system.

SEE ALSO

     chdir(2)

WARNINGS

     There are ways for a root process to escape from the chroot jail.

HISTORY

     The chroot() function call appeared in 4.2BSD.

4.2 Berkeley Distribution					   June 4, 1993 					 4.2 Berkeley Distribution

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