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ACL_CREATE_ENTRY(3)		   BSD Library Functions Manual 	      ACL_CREATE_ENTRY(3)

     acl_create_entry -- create a new ACL entry

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

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

     acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p);

     The acl_create_entry() function creates a new ACL entry in the ACL pointed to by the con-
     tents of the pointer argument acl_p.  Upon successful completion, 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 mem-
     ory, 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.

     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.

     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 hard-
			ware or system-imposed memory management constraints.

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

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

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

Linux ACL				  March 23, 2002				Linux ACL
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