ACL_CALC_MASK(3) | FreeBSD Library Functions Manual | ACL_CALC_MASK(3) |
NAME
acl_calc_mask — calculate and set ACL mask permissionsLIBRARY
Standard C Library (libc, -lc)DESCRIPTION
The acl_calc_mask() function is a POSIX.1e call that calculates and set the permissions associated with the ACL_MASK ACL entry of the ACL referred to by acl_p.The value of new permissions are the union of the permissions granted by the ACL_GROUP, ACL_GROUP_OBJ, ACL_USER tag types which match processes in the file group class contained in the ACL referred to by acl_p.
If the ACL referred to by acl_p already contains an ACL_MASK entry, its permissions shall be overwritten; if it does not contain an ACL_MASK entry, one shall be added.
RETURN VALUES
The acl_calc_mask() 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
The acl_calc_mask() function fails if:- [ EINVAL]
- Argument acl_p does not point to a pointer to a valid ACL.
STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.HISTORY
POSIX.1e support was introduced in FreeBSD 4.0. The acl_calc_mask() function was added in FreeBSD 5.0.AUTHORS
The acl_calc_mask() function was written by <jedgar@fxp.org>.March 10, 2001 | FreeBSD |