NAME

       acl_create_entry — create a new ACL entry

LIBRARY

       Linux Access Control Lists library (libacl, -lacl).

SYNOPSIS

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

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

DESCRIPTION

       The  acl_create_entry()  function  creates  a  new ACL entry in the ACL pointed to by the contents of the
       pointer argument acl_p.  On success, the function returns a descriptor for the new ACL entry via entry_p.

       This function may cause memory to be allocated.  The caller should free any releasable memory,  when  the
       new  ACL  is  no  longer  required, by calling acl_free(3) with (void*)*acl_p as an argument.  If the ACL
       working storage cannot be increased in the current location, then the working storage for the ACL pointed
       to by acl_p may be relocated and the previous working storage is released. A pointer to the  new  working
       storage is returned via acl_p.

       The  components  of  the  new ACL entry are initialized in the following ways: the ACL tag type component
       contains ACL_UNDEFINED_TAG, the qualifier component contains ACL_UNDEFINED_ID, and the set of permissions
       has no permissions enabled. Any existing ACL entry descriptors that refer to entries in the ACL  continue
       to refer to those entries.

RETURN VALUE

       The acl_create_entry() 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

       If  any  of  the following conditions occur, the acl_create_entry() function returns -1 and sets errno to
       the corresponding value:

       [EINVAL]           The argument acl_p is not a valid pointer to an ACL.

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

STANDARDS

       IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)

SEE ALSO

       acl_init(3), acl_delete_entry(3), acl_free(3), acl_create_entry(3), acl(5)

AUTHOR

       Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>, and adapted for
       Linux by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>.

Linux ACL                                        March 23, 2002                              ACL_CREATE_ENTRY(3)