from small one page howto to huge articles all in one place
 

search text in:





Poll
Which filesystem do you use?






poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

86004

userrating:

average rating: 1.7 (82 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

202365

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

84355

userrating:

average rating: 1.3 (27 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





ACL_GET_QUALIFIER

Section: C Library Functions (3)
Index Return to Main Contents

BSD mandoc
Linux ACL  

NAME

acl_get_qualifier - retrieve the qualifier from an ACL entry  

LIBRARY

Linux Access Control Lists library (libacl, -lacl).  

SYNOPSIS

In sys/types.h In sys/acl.h Ft void * Fn acl_get_qualifier acl_entry_t entry_d  

DESCRIPTION

The Fn acl_get_qualifier function retrieves the qualifier from the ACL entry indicated by the argument entry_d into working storage and returns a pointer to that storage.

If the value of the tag type in the ACL entry referred to by entry_d is ACL_USER, then the value returned by Fn acl_get_qualifier is a pointer to type uid_t If the value of the tag type in the ACL entry referred to by entry_d is ACL_GROUP, then the value returned by Fn acl_get_qualifier is a pointer to type gid_t If the tag type in the ACL entry referred to by entry_d is a tag type for which a qualifier is not supported, Fn acl_get_qualifier returns a value of (void *)NULL and the function fails. Subsequent operations using the returned pointer operate on an independent copy of the qualifier in working storage, and will not change the qualifier of the ACL entry.

This function may cause memory to be allocated. The caller should free any releasable memory, when the new qualifier is no longer required, by calling Fn acl_free with the void value returned by Fn acl_get_qualifier as an argument.

The argument entry_d and any other ACL entry descriptors that refer to entries within the ACL containing the entry referred to by entry_d continue to refer to those entries. The order of all existing entries in the ACL containing the entry referred to by entry_d remains unchanged.  

RETURN VALUE

On success, the function returns a pointer to the tag qualifier that was retrieved into ACL working storage. On error, a value of (void *)NULL is returned and errno is set appropriately.  

ERRORS

If any of the following conditions occur, the Fn acl_get_qualifier function returns (void *)NULL and sets errno to the corresponding value:

Bq Er EINVAL
The argument entry_d is not a valid descriptor for an ACL entry.

The value of the tag type in the ACL entry referenced by the argument entry_d is neither ACL_USER nor ACL_GROUP.

Bq Er ENOMEM
The value to be returned requires more memory than is allowed by the hardware or system-imposed memory management constraints.

 

STANDARDS

IEEE Std 1003.1e draft 17 (lqPOSIX.1erq, abandoned)  

SEE ALSO

acl_create_entry3, acl_free3, acl_get_entry3, acl_get_permset3, acl_get_tag_type3, acl_set_permset3, acl_set_qualifier3, acl_set_tag_type3, acl(5)  

AUTHOR

Derived from the FreeBSD manual pages written by An Robert N M Watson Aq rwatson@FreeBSD.org , and adapted for Linux by An Andreas Gruenbacher Aq a.gruenbacher@bestbits.at .


 

Index

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
STANDARDS
SEE ALSO
AUTHOR


Please read "Why adblockers are bad".



Other free services
toURL.org
Shorten long
URLs to short
links like
http://tourl.org/2
tourl.org
.
Reverse DNS lookup
Find out which hostname(s)
resolve to a
given IP or other hostnames for the server
www.reversednslookup.org
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2013 Sascha Nitsch Unternehmensberatung UG(haftungsbeschränkt)
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 3.4 ms