table of contents
ACL_FROM_MODE(3) | Library Functions Manual | ACL_FROM_MODE(3) |
NAME¶
acl_from_mode
—
create an ACL from file permission bits
LIBRARY¶
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS¶
#include
<sys/types.h>
#include <acl/libacl.h>
acl_t
acl_from_mode
(mode_t
mode);
DESCRIPTION¶
The
acl_from_mode
()
function creates a minimal ACL that contains the three entries with tag
types ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER, with permissions
corresponding to the owner, group, and other permission bits of its argument
mode.
RETURN VALUE¶
On success, this function returns a pointer to the working
storage. On error, a value of (acl_t)NULL
is
returned, and errno is set appropriately.
ERRORS¶
If any of the following conditions occur, the
acl_from_mode
() function returns a value of
(acl_t)NULL
and sets errno to
the corresponding value:
- [
ENOMEM
] - The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
STANDARDS¶
This is a non-portable, Linux specific extension to the ACL manipulation functions defined in IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned).
SEE ALSO¶
AUTHOR¶
Written by Andreas Gruenbacher ⟨a.gruenbacher@bestbits.at⟩.
March 23, 2002 | Linux ACL |