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

search text in:





Poll
Which screen resolution do you use?










poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

91371

userrating:

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


May 25th. 2007:
Words

486

Views

207208

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:

88732

userrating:

average rating: 1.3 (28 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





ATTR_GET

Section: XFS Compatibility API (3)
Updated: Extended Attributes
Index Return to Main Contents
 

NAME

attr_get, attr_getf - get the value of a user attribute of a filesystem object  

C SYNOPSIS

#include <attr/attributes.h>

int attr_get (const char *path, const char *attrname, 
              char *attrvalue, int *valuelength, int flags);

int attr_getf (int fd, const char *attrname, 
               char *attrvalue, int *valuelength, int flags);
[
 

DESCRIPTION

] The attr_get and attr_getf functions provide a way to retrieve the value of an attribute. Path points to a path name for a filesystem object, and fd refers to the file descriptor associated with a file. If the attribute attrname exists, the value associated with it will be copied into the attrvalue buffer. The valuelength argument is an input/output argument that on the call to attr_get should contain the maximum size of attribute value the process is willing to accept. On return, the valuelength will have been modified to show the actual size of the attribute value returned. The flags argument can contain the following symbols bitwise OR'ed together:
ATTR_ROOT
Look for attrname in the root address space, not in the user address space. (limited to use by super-user only)
ATTR_DONTFOLLOW
Do not follow symbolic links when resolving a path on an attr_get function call. The default is to follow symbolic links.

attr_get will fail if one or more of the following are true:

[ENOATTR]
The attribute name given is not associated with the indicated filesystem object.
[E2BIG]
The value of the given attribute is too large to fit into the buffer. The integer that the valuelength argument points to has been modified to show the actual number of bytes that would be required to store the value of that attribute.
[ENOENT]
The named file does not exist.
[EPERM]
The effective user ID does not match the owner of the file and the effective user ID is not super-user.
[ENOTDIR]
A component of the path prefix is not a directory.
[EACCES]
Search permission is denied on a component of the path prefix.
[EINVAL]
A bit was set in the flag argument that is not defined for this system call.
[EFAULT]
Path, attrname, attrvalue, or valuelength points outside the allocated address space of the process.
[ELOOP]
A path name lookup involved too many symbolic links.
[ENAMETOOLONG]
The length of path exceeds {MAXPATHLEN}, or a pathname component is longer than {MAXNAMELEN}.

attr_getf will fail if:

[ENOATTR]
The attribute name given is not associated with the indicated filesystem object.
[E2BIG]
The value of the given attribute is too large to fit into the buffer. The integer that the valuelength argument points to has been modified to show the actual numnber of bytes that would be required to store the value of that attribute.
[EINVAL]
A bit was set in the flag argument that is not defined for this system call, or fd refers to a socket, not a file.
[EFAULT]
Attrname, attrvalue, or valuelength points outside the allocated address space of the process.
[EBADF]
Fd does not refer to a valid descriptor.
 

DIAGNOSTICS

On success, zero is returned. On error, -1 is returned, and errno is set appropriately.  

SEE ALSO

attr(1), attr_list(3), attr_multi(3), attr_remove(3), and attr_set(3).


 

Index

NAME
C SYNOPSIS
DESCRIPTION
DIAGNOSTICS
SEE ALSO


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: 3.6 ms