Source code
Revision control
Copy as Markdown
Other Tools
PR_NewUDPSocket
===============
Creates a new UDP socket.
Syntax
------
.. code::
#include <prio.h>
PRFileDesc* PR_NewUDPSocket(void);
Returns
~~~~~~~
The function returns one of the following values:
- Upon successful completion, a pointer to the :ref:`PRFileDesc` object
created for the newly opened UDP socket.
- If the creation of a new UDP socket failed, ``NULL``.
Description
-----------
UDP (User Datagram Protocol) is a connectionless, unreliable datagram
protocol of the TCP/IP protocol suite. UDP datagrams may be lost or
delivered in duplicates or out of sequence.
:ref:`PR_NewUDPSocket` creates a new UDP socket. The socket may be bound to
a well-known port number with :ref:`PR_Bind`. Datagrams can be sent with
:ref:`PR_SendTo` and received with :ref:`PR_RecvFrom`. When the socket is no
longer needed, it should be closed with a call to :ref:`PR_Close`.
See Also
--------
:ref:`PR_NewUDPSocket` is deprecated because it is hardcoded to create an
IPv4 UDP socket. New code should use :ref:`PR_OpenUDPSocket` instead, which
allows the address family (IPv4 or IPv6) of the new UDP socket to be
specified.