x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
ACL_GET_FD(3) BSD Library Functions Manual ACL_GET_FD(3)
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 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 argu-
ment.
RETURN VALUE
On success, this function shall return a pointer to the working storage.
On error, a value of (acl_t)NULL shall 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)NULL and 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 man-
agement constraints.
[ENOTSUP] The file system on which the file identified by fd is
located does not support ACLs, or ACLs are disabled.
STANDARDS
IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned)
SEE ALSO
acl_free(3), acl_get_entry(3), acl_get_file(3), acl_set_fd(3), acl(5)
AUTHOR
Derived from the FreeBSD manual pages written by Robert N M Watson
<rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher
<a.gruenbacher@bestbits.at>.
Linux ACL March 23, 2002 Linux ACL
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