Man page - acl_set_file(3)
Packages contains this manual
- acl_init(3)
- acl_extended_file(3)
- acl_free(3)
- acl_get_permset(3)
- acl_get_qualifier(3)
- acl_get_perm(3)
- acl_copy_entry(3)
- acl_from_text(3)
- acl_error(3)
- acl_set_qualifier(3)
- acl_check(3)
- acl_set_file(3)
- acl_delete_def_file(3)
- acl_create_entry(3)
- acl_from_mode(3)
- acl_get_file(3)
- acl_clear_perms(3)
- acl_get_fd(3)
- acl_equiv_mode(3)
- acl_calc_mask(3)
- acl_add_perm(3)
- acl_extended_fd(3)
- acl_to_text(3)
- acl_copy_ext(3)
- acl_delete_entry(3)
- acl_set_fd(3)
- acl_set_tag_type(3)
- acl_cmp(3)
- acl_to_any_text(3)
- acl_dup(3)
- acl_size(3)
- acl_delete_perm(3)
- acl_get_entry(3)
- acl_extended_file_nofollow(3)
- acl_get_tag_type(3)
- acl_entries(3)
- acl_set_permset(3)
- acl_copy_int(3)
- acl_valid(3)
apt-get install libacl1-dev
Manual
ACL_SET_FILE (3) Library Functions Manual ACL_SET_FILE (3)
NAME
acl_set_file — set an ACL by filename
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
#include <sys/types.h>
#include <sys/acl.h>
int
acl_set_file ( const char *path_p , acl_type_t type , acl_t acl );
DESCRIPTION
The acl_set_file () function associates an access ACL with a file or directory, or associates a default ACL with a directory. The pathname for the file or directory is pointed to by the argument path_p .
The effective user ID of the process must match the owner of the file or directory or the process must have the CAP_FOWNER capability for the request to succeed.
The value of the argument type is used to indicate whether the access ACL or the default ACL associated with path_p is being set. If the type parameter is ACL_TYPE_ACCESS, the access ACL of path_p shall be set. If the type parameter is ACL_TYPE_DEFAULT, the default ACL of path_p shall be set. If the argument type specifies a type of ACL that cannot be associated with path_p , then the function fails.
The acl parameter must reference a valid ACL according to the rules described on the acl_valid (3) manual page if the type parameter is ACL_TYPE_ACCESS, and must either reference a valid ACL or an ACL with zero ACL entries if the type parameter is ACL_TYPE_DEFAULT. If the acl parameter references an empty ACL, then the acl_set_file () function removes any default ACL associated with the directory referred to by the path_p parameter.
RETURN VALUE
The acl_set_file () function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.
ERRORS
If any of the following conditions occur, the acl_set_file () function returns -1 and sets errno to the corresponding value:
[EACCES]
Search permission is denied for a component of the path prefix or the object exists and the process does not have appropriate access rights.
Argument type specifies a type of ACL that cannot be associated with path_p .
[EINVAL]
The argument acl does not point to a valid ACL.
The ACL has more entries than the file referred to by path_p can obtain.
The type parameter is not ACL_TYPE_ACCESS or ACL_TYPE_DEFAULT.
The type parameter is ACL_TYPE_DEFAULT, but the file referred to by path_p is not a directory.
[ENAMETOOLONG]
The length of the argument path_p is too long.
[ENOENT]
The named object does not exist or the argument path_p points to an empty string.
[ENOSPC]
The directory or file system that would contain the new ACL cannot be extended or the file system is out of file allocation resources.
[ENOTDIR]
A component of the path prefix is not a directory.
[ENOTSUP]
The file identified by path_p cannot be associated with the ACL because the file system on which the file is located does not support this.
[EPERM]
The process does not have appropriate privilege to perform the operation to set the ACL.
[EROFS]
This function requires modification of a file system which is currently read-only.
STANDARDS
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
The behavior of acl_set_file () when the acl parameter refers to an empty ACL and the type parameter is ACL_TYPE_DEFAULT is an extension in the Linux implementation, in order that all values returned by acl_get_file () can be passed to acl_set_file (). The POSIX.1e function for removing a default ACL is acl_delete_def_file ().
SEE ALSO
acl_delete_def_file (3), acl_get_file (3), acl_set_fd (3), acl_valid (3), acl (5)
AUTHOR
Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>. Linux ACL March 23, 2002 ACL_SET_FILE (3)