redhat man page for acl_init

ACL_INIT(3)						   BSD Library Functions Manual 					       ACL_INIT(3)

NAME
     acl_init -- initialize ACL working storage

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

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

     acl_t
     acl_init(int count);

DESCRIPTION
     The acl_init() function allocates and initializes the working storage for an ACL of at least count ACL entries.  The ACL created initially
     contains no ACL entries.  A pointer to the working storage is returned.

     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 the (void*)acl_t returned by acl_init() as an argument.

RETURN VALUE
     Upon successful completion, this function returns a pointer to the working storage.  Otherwise, a value of (acl_t)NULL is returned, and errno
     is set to indicate the error.

ERRORS
     If any of the following conditions occur, the acl_init() function returns a value of (acl_t)NULL and sets errno to the corresponding value:

     [EINVAL]		The value of count is less than zero.

     [ENOMEM]		The acl_t to be returned requires more memory than is allowed by the hardware or system-imposed memory management con-
			straints.

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

SEE ALSO
     acl_get_file(3), acl_free(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
     <a.gruenbacher@computer.org>.

Linux ACL							  March 23, 2002							 Linux ACL