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| <h3 class="section">16.10 Datagram Socket Operations</h3> |
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| <p><a name="index-datagram-socket-1817"></a>This section describes how to use communication styles that don't use |
| connections (styles <code>SOCK_DGRAM</code> and <code>SOCK_RDM</code>). Using |
| these styles, you group data into packets and each packet is an |
| independent communication. You specify the destination for each |
| packet individually. |
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| <p>Datagram packets are like letters: you send each one independently |
| with its own destination address, and they may arrive in the wrong |
| order or not at all. |
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| <p>The <code>listen</code> and <code>accept</code> functions are not allowed for |
| sockets using connectionless communication styles. |
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| <ul class="menu"> |
| <li><a accesskey="1" href="Sending-Datagrams.html#Sending-Datagrams">Sending Datagrams</a>: Sending packets on a datagram socket. |
| <li><a accesskey="2" href="Receiving-Datagrams.html#Receiving-Datagrams">Receiving Datagrams</a>: Receiving packets on a datagram socket. |
| <li><a accesskey="3" href="Datagram-Example.html#Datagram-Example">Datagram Example</a>: An example program: packets sent over a |
| datagram socket in the local namespace. |
| <li><a accesskey="4" href="Example-Receiver.html#Example-Receiver">Example Receiver</a>: Another program, that receives those packets. |
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