|ACL_GET_FD(3)||Library Functions Manual||ACL_GET_FD(3)|
acl_get_fd() function retrieves the access ACL associated with the file referred to by fd. The ACL is placed into working storage and
acl_get_fd() returns a pointer to that storage.
In order to read an ACL from an object, a process must have read access to the object's attributes.
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_get_fd() as an argument.
(acl_t)NULLshall be returned, and errno is set appropriately.
acl_get_fd() function returns a value of
(acl_t)NULLand sets errno to the corresponding value:
- The fd argument is not a valid file descriptor.
- The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
- The file system on which the file identified by fd is located does not support ACLs, or ACLs are disabled.
|March 23, 2002||Linux ACL|