SYNOPSIS

     #include <sys/types.h>
     #include <sys/acl.h>

     int
     acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p);

     int
     acl_create_entry_np(acl_t *acl_p, acl_entry_t *entry_p, int entry_index);

DESCRIPTION

     The acl_create_entry() function is a POSIX.1e call that creates a new ACL
     entry in the ACL pointed to by acl_p.

     The acl_create_entry_np() function is a non-portable extension which
     allows the caller to specify the position of the created entry within the
     ACL.  If entry_index is ACL_FIRST_ENTRY the entry will be created at the
     head of the ACL.  If entry_index is ACL_LAST_ENTRY the entry will be cre-
     ated at the end of the ACL.  After inserting an ACL entry with an
     entry_index other than ACL_LAST_ENTRY the behaviour of any acl_entry_t's
     previously obtained from the ACL by acl_create_entry() or acl_get_entry()
     is undefined.

RETURN VALUES

     The acl_create_entry() function returns the value 0 if successful; other-
     wise the value -1 is returned and the global variable errno is set to
     indicate the error.

ERRORS

     The acl_create_entry() and acl_create_entry_np() functions fail if:

     [EINVAL]           Argument acl_p does not point to a pointer to a valid
                        ACL.

     [ENOMEM]           The ACL working storage requires more memory than is
                        allowed by the hardware or system-imposed memory man-
                        agement constraints.

     [ERANGE]           The entry_index argument to acl_create_entry_np() is
                        greater than the number of entries in the ACL.

SEE ALSO

     acl(3), acl_delete_entry(3), acl_get_entry(3), posix1e(3)

STANDARDS

     POSIX.1e is described in IEEE POSIX.1e draft 17.

AUTHORS

     Michael Smith
     Chris D Fulhaber