table of contents
NAME¶
acl_get_fd—
get an ACL by file descriptor
LIBRARY¶Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS¶
#include <sys/types.h>
#include <sys/acl.h>
acl_t
acl_get_fd(int
fd);
DESCRIPTION¶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.
RETURN VALUE¶On success, this function shall return a pointer to the working storage. On error, a value of
(acl_t)NULLshall be returned, and errno is set appropriately.
ERRORS¶If any of the following conditions occur, the
acl_get_fd() function returns a value of
(acl_t)NULLand sets errno to the corresponding value:
- [
EBADF]
- The fd argument is not a valid file descriptor.
- [
ENOMEM]
- The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.
- [
ENOTSUP]
- The file system on which the file identified by fd is located does not support ACLs, or ACLs are disabled.