2 .\" Copyright (c) 2000 Robert N. M. Watson
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33 .Nd Convert an ACL to Text
35 .Fd #include <sys/types.h>
36 .Fd #include <sys/acl.h>
38 .Fn acl_to_text "acl_t acl" "ssize_t *len_p"
42 function translates the ACL pointed to by argument
44 into a NULL terminated character string. If the pointer
46 is not NULL, then the function shall return the length of the string (not
47 including the NULL terminator) in the location pointed to by
49 The format of the text string returned by
51 shall be the POSIX.1e long ACL form.
53 This function allocates any memory necessary to contain the string and
54 returns a pointer to the string. The caller should free any releasable
55 memory, when the new string is no longer required, by calling
60 .Sh IMPLEMENTATION NOTES
61 FreeBSD's support for POSIX.1e interfaces and features is still under
62 development at this time.
64 Upon successful completion, the function shall return a pointer to the
65 long text form of an ACL. Otherwise, a value of
69 shall be set to indicate the error.
71 If any of the following conditions occur, the
73 function shall return a value of
77 to the corresponding value:
82 does not point to a valid ACL.
86 contains one or more improperly formed ACL entries, or for some other
87 reason cannot be translated into a text form of an ACL.
89 The character string to be returned requires more memory than is allowed
90 by the hardware or software-imposed memory management constraints.
98 POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion
99 of the draft continues on the cross-platform POSIX.1e implementation
100 mailing list. To join this list, see the FreeBSD POSIX.1e implementation
101 page for more information.
103 POSIX.1e support was introduced in
105 and development continues.
107 .An Robert N M Watson
109 These features are not yet fully implemented. In particular, the shipped
110 version of UFS/FFS does not support storage of additional security labels,
111 and so is unable to (easily) provide support for most of these features.
118 library calls to manage username and uid mapping, as well as the
120 library calls to manage groupname and gid mapping. These calls are not
121 thread safe, and so transitively, neither are
125 These functions may also interfere with stateful
126 calls associated with the