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ACL_CALC_MASK(3) Library Functions Manual ACL_CALC_MASK(3) NAME acl_calc_mask - calculate and set ACL mask permissions LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <sys/types.h> #include <sys/acl.h> int acl_calc_mask(acl_t *acl_p); 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. SEE ALSO acl(3), acl_get_entry(3), acl_valid(3), posix1e(3) 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 Chris D. Faulhaber <jedgar@fxp.org>. NetBSD 10.99 March 10, 2001 NetBSD 10.99