LIBRARYLinux Access Control Lists library (libacl, -lacl).
SYNOPSISIn sys/types.h In sys/acl.h Ft acl_t Fn acl_dup acl_t acl
DESCRIPTIONThe Fn 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_free3 with the (void*)acl_t returned by Fn acl_dup as an argument.
RETURN VALUEOn success, this function returns a pointer to the working storage. On error, a value of (acl_t)NULL is returned, and errno is set appropriately.
ERRORSIf any of the following conditions occur, the Fn acl_dup function returns a value of (acl_t)NULL and sets errno to the corresponding value:
- Bq Er EINVAL
- The argument acl is not a valid pointer to an ACL.
- Bq Er ENOMEM
- The acl_t to be returned requires more memory than is allowed by the hardware or system-imposed memory management constraints.