acl_get_entry()
| Updated: October 28, 2024 |
Get an entry in an access control list (ACL)
Synopsis:
#include <sys/acl.h>
int acl_get_entry( acl_t acl,
int entry_id,
acl_entry_t *entry_p );
Arguments:
- acl
- A pointer to the access control list that you want to get an entry from.
- entry_id
- The ID of the entry you want to get; one of the following:
- ACL_FIRST_ENTRY — get the first entry in the ACL.
- ACL_NEXT_ENTRY — get the next entry in the ACL.
- entry_p
- A pointer to a location where the function can store a pointer to the entry.
Library:
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Description:
The acl_get_entry() function gets an entry from an access control list.
Each ACL remembers which entry is the current one.
The ACL entry's pointer returned by acl_get_entry() becomes invalid after calling these functions:
- acl_valid()
- acl_create_entry()
- acl_calc_mask()
- acl_delete_entry()
- acl_set_file()
- acl_set_fd()
Returns:
- 1
- An entry was found.
- 0
- The ACL has no entries, or the last entry was returned by a previous call to
acl_get_entry().
- -1
- An error occurred
(errno
is set).
Errors:
- EINVAL
- The value of entry_id isn't ACL_FIRST_ENTRY or ACL_NEXT_ENTRY.
Classification:
QNX Neutrino
This function is based on the withdrawn POSIX draft P1003.1e.
| Safety: |
|
|---|
| Cancellation point |
No |
| Interrupt handler |
No |
| Signal handler |
No |
| Thread |
Yes |