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| <h3 class="section">16.12 Socket Options</h3> |
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| <p><a name="index-socket-options-1825"></a> |
| This section describes how to read or set various options that modify |
| the behavior of sockets and their underlying communications protocols. |
| |
| <p><a name="index-level_002c-for-socket-options-1826"></a><a name="index-socket-option-level-1827"></a>When you are manipulating a socket option, you must specify which |
| <dfn>level</dfn> the option pertains to. This describes whether the option |
| applies to the socket interface, or to a lower-level communications |
| protocol interface. |
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| <ul class="menu"> |
| <li><a accesskey="1" href="Socket-Option-Functions.html#Socket-Option-Functions">Socket Option Functions</a>: The basic functions for setting and getting |
| socket options. |
| <li><a accesskey="2" href="Socket_002dLevel-Options.html#Socket_002dLevel-Options">Socket-Level Options</a>: Details of the options at the socket level. |
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