acl_dup man page on Oracle

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ACL_DUP(3)		 BSD Library Functions Manual		    ACL_DUP(3)

NAME
     acl_dup — duplicate an ACL

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

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

     acl_t
     acl_dup(acl_t acl);

DESCRIPTION
     The acl_dup() function returns a pointer to a copy of the ACL pointed to
     by acl.

     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_dup() as an argument.

RETURN VALUE
     On success, this function returns a pointer to the working storage.  On
     error, a value of (acl_t)NULL is returned, and errno is set appropri‐
     ately.

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

     [EINVAL]		The argument acl is not a valid pointer to an ACL.

     [ENOMEM]		The acl_t to be returned requires more memory than is
			allowed by the hardware or system-imposed memory man‐
			agement constraints.

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

SEE ALSO
     acl_free(3), acl_get_entry(3), acl(5)

AUTHOR
     Derived from the FreeBSD manual pages written by Robert N M Watson
     ⟨rwatson@FreeBSD.org⟩, and adapted for Linux by Andreas Gruenbacher
     ⟨a.gruenbacher@bestbits.at⟩.

Linux ACL			March 23, 2002			     Linux ACL
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