acl_to_text - convert an ACL to text
Linux Access Control Lists library (libacl, -lacl).
acl_to_text(acl_t acl, ssize_t *len_p);
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.
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
If any of the following conditions occur, the acl_to_text() function
returns a value of (char *)NULL and sets errno to the corresponding
[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
[ENOMEM] The character string to be returned requires more
memory than is allowed by the hardware or system-
imposed memory management constraints.
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
acl_free(3), acl_to_any_text(3), acl(5)
Derived from the FreeBSD manual pages written by Robert N M Watson
〈rwatson@FreeBSD.org〉, and adapted for Linux by Andreas Gruenbacher