acl_copy_int(3)

acl_copy_int3

Copy an acl from external to internal representation

Usage

#include <sys/types.h>

#include <sys/acl.h>

acl_t

acl_copy_int(const void *buf_p);

Library

Linux Access Control Lists library (libacl, -lacl).

Overview

The acl_copy_int() function copies an exportable, contiguous, persistent form of an ACL, pointed to by buf_p, to the internal representation.

This function may cause memory to be allocated. The caller should free any releasable memory, when the new ACL is no longer required, by calling acl_free(3) with the (void*)acl_t returned by acl_copy_int() as an argument.

Return value

Upon success, the acl_copy_int() function returns a pointer that references the ACL in working storage. On error, a value of (acl_t)NULL is returned, and errno is set appropriately.

Errors

If any of the following conditions occur, the acl_copy_int() function returns a value of (acl_t)NULL and sets errno to the corresponding value:

[EINVAL]

The buffer pointed to by the argument buf_p does not contain a valid external form ACL.

[ENOMEM]

The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.

Releases

13 releases since Debian 3.0 (Woody); the text changed 4 times.

  1. 3.0
  2. 3.1
  3. 4.0–5.0
  4. 6.0–10
  5. 11–Arch

Standards

IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)

Author

Derived from the FreeBSD manual pages written by Robert N M Watson ⟨[email protected]⟩, and adapted for Linux by Andreas Gruenbacher ⟨[email protected]⟩.

From acl 2.4.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's mdoc source.