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Man Pages


Manual Reference Pages  -  ACL_SET_FD (3)

NAME

acl_set_fd, acl_set_fd_np, acl_set_file, acl_set_link_np - set an ACL for a file

CONTENTS

Library
Synopsis
Description
Implementation Notes
Return Values
Errors
See Also
Standards
History
Authors

LIBRARY


.Lb libc

SYNOPSIS


.In sys/types.h
.In sys/acl.h int acl_set_fd int fd acl_t acl int acl_set_fd_np int fd acl_t acl acl_type_t type int acl_set_file const char *path_p acl_type_t type acl_t acl int acl_set_link_np const char *path_p acl_type_t type acl_t acl

DESCRIPTION

The acl_set_fd, acl_set_fd_np, acl_set_file, and acl_set_link_np each associate an ACL with an object referred to by fd or path_p. The acl_set_fd_np and acl_set_link_np functions are not POSIX.1e calls. The acl_set_fd function allows only the setting of ACLs of type ACL_TYPE_ACCESS where as acl_set_fd_np allows the setting of ACLs of any type. The acl_set_link_np function acts on a symlink rather than its target, if the target of the path is a symlink.

Valid values for the type argument are:
ACL_TYPE_ACCESS POSIX.1e access ACL
ACL_TYPE_DEFAULT POSIX.1e default ACL
ACL_TYPE_NFS4 NFSv4 ACL
 

Trying to set ACL_TYPE_NFS4 with acl branded as POSIX.1e, or ACL_TYPE_ACCESS or ACL_TYPE_DEFAULT with ACL branded as NFSv4, will result in error.

IMPLEMENTATION NOTES


.Fx Ns ’s support for POSIX.1e interfaces and features is still under development at this time.

RETURN VALUES


.Rv -std

ERRORS

If any of the following conditions occur, these functions shall return -1 and set errno to the corresponding value:
[EACCES]
  Search permission is denied for a component of the path prefix, or the object exists and the process does not have appropriate access rights.
[EBADF]
  The fd argument is not a valid file descriptor.
[EINVAL]
  Argument acl does not point to a valid ACL for this object, or the ACL type specified in type is invalid for this object, or there is branding mismatch.
[ENAMETOOLONG]
  A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
[ENOENT]
  The named object does not exist, or the path_p argument points to an empty string.
[ENOMEM]
  Insufficient memory available to fulfill request.
[ENOSPC]
  The directory or file system that would contain the new ACL cannot be extended, or the file system is out of file allocation resources.
[EOPNOTSUPP]
  The file system does not support ACL retrieval.
[EROFS]
  This function requires modification of a file system which is currently read-only.

SEE ALSO

acl(3), acl_delete(3), acl_get(3), acl_get_brand_np(3), acl_valid(3), posix1e(3)

STANDARDS

POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion of the draft continues on the cross-platform POSIX.1e implementation mailing list. To join this list, see the
.Fx POSIX.1e implementation page for more information.

HISTORY

POSIX.1e support was introduced in
.Fx 4.0 , and development continues.

AUTHORS


.An Robert N M Watson
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