acl_create_entry3
Create a new acl entry
Usage
#include <sys/types.h>
#include <sys/acl.h>
int
acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p);
int
acl_create_entry_np(acl_t *acl_p, acl_entry_t *entry_p, int entry_index);
Library
Standard C Library (libc, -lc)
Overview
The acl_create_entry() function is a POSIX.1e call that creates a new ACL entry in the ACL pointed to by acl_p. The function will return in entry_p a descriptor for this ACL entry.
The acl_create_entry_np() function is a non-portable extension which allows the caller to specify the position of the created entry within the ACL. If entry_index is ACL_FIRST_ENTRY the entry will be created at the head of the ACL. If entry_index is ACL_LAST_ENTRY the entry will be created at the end of the ACL. After inserting an ACL entry with an entry_index other than ACL_LAST_ENTRY the behaviour of any acl_entry_t's previously obtained from the ACL by acl_create_entry() or acl_get_entry() is undefined.
Return values
The acl_create_entry() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.
Errors
The acl_create_entry() and acl_create_entry_np() functions fail if:
- [EINVAL]
-
Argument acl_p does not point to a pointer to a valid ACL.
- [ENOMEM]
-
The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
- [ERANGE]
-
The entry_index argument to
acl_create_entry_np() is greater than the number of entries in the ACL.
Releases
135 releases since Mac OS X 10.4; the text changed 1 time.