redhat man page for acl_to_text

ACL_FROM_TEXT(3)					   BSD Library Functions Manual 					  ACL_FROM_TEXT(3)

NAME
     acl_to_text -- convert an ACL to text

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

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

     char *
     acl_to_text(acl_t acl, ssize_t *len_p);

DESCRIPTION
     The acl_to_text() function translates the ACL pointed to by the argument acl into a NULL terminated character string.  If the pointer len_p
     is not NULL, then the function returns the length of the string (not including the NULL terminator) in the location pointed to by len_p.  The
     format of the text string returned by acl_to_text() is the long text form defined in acl(5).  The ACL referred to by acl is not changed.

     This function allocates any memory necessary to contain the string and returns a pointer to the string.  The caller should free any
     releasable memory, when the new string is no longer required, by calling acl_free(3) with the (void*)char returned by acl_to_text() as an
     argument.

RETURN VALUE
     Upon successful completion, this function returns a pointer to the long text form of the ACL.  Otherwise, a value of (char *)NULL is
     returned, and errno is set to indicate the error.

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

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

			The ACL referenced by acl contains one or more improperly formed ACL entries, or for some other reason cannot be trans-
			lated into a text form of an ACL.

     [ENOMEM]		The character string to be returned requires more memory than is allowed by the hardware or system-imposed memory manage-
			ment constraints.

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

SEE ALSO
     acl_free(3), acl_to_any_text(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