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


SYNOPSIS

     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 re­
     turns 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
                   translated 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
                   management 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                               1

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