On Apache/2.2.3 (Red Hat)
Under GNU General Public License
2009-11-29 14:25 @127.0.0.1 CrawledBy CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
ACL_CHECK(3) BSD Library Functions Manual ACL_CHECK(3)
NAME
acl_check - check an ACL for validity
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
#include <sys/types.h>
#include <acl/libacl.h>
int
acl_check(acl_t acl, int *last);
DESCRIPTION
The acl_check() function checks the ACL referred to by the argument acl for validity.
The three required entries ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER must exist
exactly once in the ACL. If the ACL contains any ACL_USER or ACL_GROUP entries, then
an ACL_MASK entry is also required. The ACL may contain at most one ACL_MASK entry.
The user identifiers must be unique among all entries of type ACL_USER. The group
identifiers must be unique among all entries of type ACL_GROUP.
If the ACL referred to by acl is invalid, acl_check() returns a positive error code
that indicates which type of error was detected. The following symbolic error codes
are defined:
ACL_MULTI_ERROR The ACL contains multiple entries that have a tag type that may
occur at most once.
ACL_DUPLICATE_ERROR The ACL contains multiple ACL_USER entries with the same user
ID, or multiple ACL_GROUP entries with the same group ID.
ACL_MISS_ERROR A required entry is missing.
ACL_ENTRY_ERROR The ACL contains an invalid entry tag type.
The acl_error() function can be used to translate error codes to text messages.
In addition, if the pointer last is not NULL, acl_check() assigns the number of the
ACL entry at which the error was detected to the value pointed to by last. Entries
are numbered starting with zero, in the order in which they would be returned by the
acl_get_entry() function.
RETURN VALUE
If successful, the acl_check() function returns 0 if the ACL referred to by acl is
valid, and a positive error code if the ACL is invalid. Otherwise, a value of -1 is
returned and the global variable errno is set to indicate the error.
ERRORS
If any of the following conditions occur, the acl_check() function returns -1 and
sets errno to the corresponding value:
[EINVAL] The argument acl is not a valid pointer to an ACL.
STANDARDS
This is a non-portable, Linux specific extension to the ACL manipulation functions
defined in IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned).
SEE ALSO
acl_valid(3), acl(5)
AUTHOR
Written by Andreas Gruenbacher <a.gruenbacher AT bestbits.at>.
Linux ACL March 23, 2002 Linux ACL
Generated by $Id: phpMan.php,v 4.54 2007/08/21 09:05:22 chedong Exp $ Author: Che Dong
On Apache/2.2.3 (Red Hat)
Under GNU General Public License
2009-11-29 14:25 @127.0.0.1 CrawledBy CCBot/1.0 (+http://www.commoncrawl.org/bot.html)