man/man3/seek.html


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<title>seek(3) - Plan 9 from User Space</title>
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<tr><td width=20><td><b>SEEK(3)</b><td align=right><b>SEEK(3)</b>
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    <br>
<p><font size=+1><b>NAME     </b></font><br>

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    seek &ndash; change file offset<br>
    
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<p><font size=+1><b>SYNOPSIS     </b></font><br>

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    <tt><font size=+1>#include &lt;u.h&gt;<br>
    #include &lt;libc.h&gt; 
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    <tt><font size=+1>vlong seek(int fd, vlong n, int type)<br>
    </font></tt>
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<p><font size=+1><b>DESCRIPTION     </b></font><br>

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    <i>Seek</i> sets the offset for the file associated with <i>fd</i> as follows:<br>
    
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        If <i>type</i> is 0, the offset is set to <i>n</i> bytes.<br>
        If <i>type</i> is 1, the pointer is set to its current location plus
        <i>n</i>.<br>
        If <i>type</i> is 2, the pointer is set to the size of the file plus
        <i>n</i>. 
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    The new file offset value is returned. 
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    Seeking in a directory is not allowed. Seeking in a pipe is a
    no-op.<br>
    
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<p><font size=+1><b>SOURCE     </b></font><br>

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    <tt><font size=+1>/usr/local/plan9/src/lib9/seek.c<br>
    </font></tt>
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<p><font size=+1><b>SEE ALSO    </b></font><br>

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    <a href="../man3/intro.html"><i>intro</i>(3)</a>, <a href="../man3/open.html"><i>open</i>(3)</a><br>
    
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<p><font size=+1><b>DIAGNOSTICS     </b></font><br>

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    Sets <i>errstr</i>.<br>
    
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<p><font size=+1><b>BUGS     </b></font><br>

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    To avoid name conflicts with the underlying system, <i>seek</i> is a
    preprocessor macro defined as <i>p9seek</i>; see <a href="../man3/intro.html"><i>intro</i>(3)</a>.<br>
    
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