--- name: "libuuid" section: "3" platform: "linux" package: "uuid-dev" version: "1.2-1.27-2" release: "Debian 3.0 (Woody)" platforms: ["linux"] url: "https://new.carta.tech/libuuid" --- # libuuid(3) DCE compatible Universally Unique Identifier library ## NAME libuuid - DCE compatible Universally Unique Identifier library ## SYNOPSIS **#include \** **cc** *file.c* **-luuid** ## DESCRIPTION The **libuuid** library is used to generate unique identifiers for objects that may be accessible beyond the local system. The Linux implementation was created to uniquely identify ext2 filesystems created by a machine. This library generates UUIDs compatible with those created by the Open Software Foundation (OSF) Distributed Computing Environment (DCE) utility **uuidgen**. The UUIDs generated by this library can be reasonably expected to be unique within a system, and unique across all systems. They could be used, for instance, to generate unique HTTP cookies across multiple web servers without communication between the servers, and without fear of a name clash. ## CONFORMING TO OSF DCE 1.1 ## AUTHOR **libuuid** was written by Theodore Y. Ts'o for the ext2 filesystem utilties. ## AVAILABILITY **libuuid** is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net/ ⟨http://e2fsprogs.sourceforge.net/⟩ ## COPYING **libuuid** is available under the terms of the GNU Library General Public License (LGPL), version 2 (or at your discretion any later version). A copy of the LGPL should be included with this library in the file COPYING. If not, write to Free Software Foundation, Inc.\ 59 Temple Place\ Suite 330\ Boston, MA 02111-1307 USA or visit http://www.gnu.org/licenses/licenses.html#LGPL ⟨http://www.gnu.org/licenses/licenses.html#LGPL⟩ ## SEE ALSO [**uuid\_clear**(3)](/uuid_clear/3.md), [**uuid\_compare**(3)](/uuid_compare/3.md), [**uuid\_copy**(3)](/uuid_copy/3.md), [**uuid\_generate**(3)](/uuid_generate/3.md), [**uuid\_is\_null**(3)](/uuid_is_null/3.md), [**uuid\_parse**(3)](/uuid_parse/3.md), [**uuid\_time**(3)](/uuid_time/3.md), [**uuid\_unparse**(3)](/uuid_unparse/3.md)