table of contents
ACL_FROM_MODE(3) | Library Functions Manual | ACL_FROM_MODE(3) |
NAME¶
acl_from_mode — create an ACL from file permission bitsLIBRARY¶
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¶
acl_equiv_mode(3), acl_get_file(3), acl(5)AUTHOR¶
Written byAndreas Gruenbacher ⟨a.gruenbacher@bestbits.at⟩.
March 23, 2002 | Linux ACL |