ACL_COPY_INT(3) Library Functions Manual ACL_COPY_INT(3)

copy an ACL from external to internal representation

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

#include <sys/types.h>
#include <sys/acl.h>

acl_copy_int(const void *buf_p);

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.

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.

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:
The buffer pointed to by the argument buf_p does not contain a valid external form ACL.
The ACL working storage 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_copy_ext(3), acl_get_entry(3), acl_free(3), acl(5)

Derived from the FreeBSD manual pages written by Robert N M Watson ⟨⟩, and adapted for Linux by Andreas Gruenbacher ⟨⟩.
March 23, 2002 Linux ACL