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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
ACL_SIZE(3) BSD Library Functions Manual ACL_SIZE(3)
acl_size — get the size of the external representation of an ACL
Linux Access Control Lists library (libacl, -lacl).
#include <sys/types.h>
#include <sys/acl.h>
ssize_t
acl_size(acl_t acl);
The acl_size() function return the size, in bytes, of the buffer
required to hold the exportable, contiguous, persistent form of the ACL
pointed to by the argument acl, when converted by acl_copy_ext().
Any existing ACL entry descriptors that refer to entries in acl con‐
tinue to refer to the same entries. Any existing ACL pointers that
refer to the ACL referred to by acl continue to refer to the ACL. The
order of ACL entries within acl remains unchanged.
On success, the acl_size() function returns the size in bytes of the
contiguous, persistent form of the ACL. On error, a value of
(ssize_t)-1 is returned and errno is set appropriately.
If any of the following conditions occur, the acl_size() function
returns a value of (ssize_t)-1 and sets errno to the corresponding
value:
[EINVAL] The argument acl is not a valid pointer to an ACL.
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
acl_copy_ext(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
<andreas.gruenbacher@gmail.com>.
This page is part of the acl (manipulating access control lists)
project. Information about the project can be found at
http://savannah.nongnu.org/projects/acl. If you have a bug report for
this manual page, see ⟨http://savannah.nongnu.org/bugs/?group=acl⟩.
This page was obtained from the project's upstream Git repository
⟨git://git.savannah.nongnu.org/acl.git⟩ on 2020-08-13. (At that time,
the date of the most recent commit that was found in the repository was
2020-02-06.) If you discover any rendering problems in this HTML ver‐
sion of the page, or you believe there is a better or more up-to-date
source for the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original manual
page), send a mail to man-pages@man7.org
Linux ACL March 23, 2002 Linux ACL