ACL_TO_TEXT(3) BSD Library Functions Manual ACL_TO_TEXT(3)NAMEacl_to_text — convert an ACL to text
Standard C Library (libc, -lc)
acl_to_text(acl_t acl, ssize_t *len_p);
The acl_to_text() function translates the ACL pointed to by argument acl
into a NULL terminated character string. If the pointer len_p is not
NULL, then the function shall return 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() for an ACL of type
ACL_TYPE_EXTENDED differs from that specified by the POSIX.1e standard,
and this function cannot translate between formats.
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 as an argument.
Upon successful completion, the function shall return a pointer to the
long text form of an ACL. Otherwise, a value of (char*)NULL shall be
returned and errno shall be set to indicate the error.
If any of the following conditions occur, the acl_to_text() function
shall return a value of (acl_t)NULL and set errno to the corresponding
[EINVAL] Argument acl does not point to a valid ACL.
The ACL denoted 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 mem‐
ory than is allowed by the hardware or software-
imposed memory management constraints.
SEE ALSOacl(3), acl_free(3), acl_from_text(3), posix1e(3)STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
Robert N M Watson
BSD January 28, 2000 BSD