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| <h5 class="subsubsection">16.9.5.3 Socket Data Options</h5> |
| |
| <p><a name="index-sys_002fsocket_002eh-1810"></a>The <var>flags</var> argument to <code>send</code> and <code>recv</code> is a bit |
| mask. You can bitwise-OR the values of the following macros together |
| to obtain a value for this argument. All are defined in the header |
| file <samp><span class="file">sys/socket.h</span></samp>. |
| |
| <!-- sys/socket.h --> |
| <!-- BSD --> |
| <div class="defun"> |
| — Macro: int <b>MSG_OOB</b><var><a name="index-MSG_005fOOB-1811"></a></var><br> |
| <blockquote><p>Send or receive out-of-band data. See <a href="Out_002dof_002dBand-Data.html#Out_002dof_002dBand-Data">Out-of-Band Data</a>. |
| </p></blockquote></div> |
| |
| <!-- sys/socket.h --> |
| <!-- BSD --> |
| <div class="defun"> |
| — Macro: int <b>MSG_PEEK</b><var><a name="index-MSG_005fPEEK-1812"></a></var><br> |
| <blockquote><p>Look at the data but don't remove it from the input queue. This is |
| only meaningful with input functions such as <code>recv</code>, not with |
| <code>send</code>. |
| </p></blockquote></div> |
| |
| <!-- sys/socket.h --> |
| <!-- BSD --> |
| <div class="defun"> |
| — Macro: int <b>MSG_DONTROUTE</b><var><a name="index-MSG_005fDONTROUTE-1813"></a></var><br> |
| <blockquote><p>Don't include routing information in the message. This is only |
| meaningful with output operations, and is usually only of interest for |
| diagnostic or routing programs. We don't try to explain it here. |
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