acl_to_text

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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 argu-
     ment.

RETURN VALUE
     On success, this function returns a pointer to the long text form of the
     ACL.  On error, a value of (char *)NULL is returned, and errno is set
     appropriately.

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 rea-
			son 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			    Linux ACL