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No medium Found, 4.0, Notes
</title>
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<body>
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<a href="300-notes.html" >Prev</a>,
<a href="000-notes.html" >Top</a>
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<a href="400-slide.html" >Slide</a>,
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<h1>
4. Path Resolution
</h1>
<ul>
<li> <i>no-one</i> reads <i>path_resolution</i>(7); <a
href="400-slide.html">slide</a>
<li> This was done as the most significant part of the proof-of-concept.
<li> source file name on screen
</ul>
<h2> <a name="4.1">4.1</a> Start of the Resolution Process </h2>
<ul>
<li> root vs currdir <b>i</b>node; <a href="410-slide.html" >slide</a>
<li> prints absolute paths for background processes
</ul>
<h2> <a name="4.2">4.2</a> Walk Along the Path </h2>
<ul>
<li> EACCES directory; <a href="420-slide.html" >slide</a>
<li> ENOENT directory; <a href="421-slide.html" >slide</a>
<li> ENOENT directory <i>fuzzy</i> typos; <a href="422-slide.html" >slide</a>
<li> ENOTDIR; <a href="423-slide.html" >slide</a>
<li> ENOENT dangling symlink; <a href="424-slide.html" >slide</a>
<li> ELOOP; <a href="425-slide.html" >slide</a>
<li> EMLINK; <a href="426-slide.html" >slide</a>
</ul>
<h2> <a name="4.3">4.3</a> Find the Final Entry </h2>
<ul>
<li> as above
<li> EEXIST; <a href="430-slide.html" >slide</a>
<li> ENOTDIR; <a href="431-slide.html" >slide</a>
<li> ELOOP O_NOFOLLOW; <a href="432-slide.html" >slide</a>
<li> EINVAL wrong file type; <a href="433-slide.html" >slide</a>
<li> EPERM sticky bit; <a href="433-slide.html" >slide</a>
<li>
</ul>
<h2> <a name="4.4">4.4</a> Limits </h2>
<ul>
<li> ENAMETOOLONG pathname; <a href="440-slide.html" >slide</a>
<li> ENAMETOOLONG filename; <a href="441-slide.html" >slide</a>
<li> ENOENT empty; <a href="442-slide.html" >slide</a>
</ul>
<h2> <a name="4.5">4.5</a> Permissions </h2>
<ul>
<li> this takes a lot of explaining; <a href="450-slide.html" >slide</a>
<li> permission bits are not bit-wise ORed together
<li> file "--x" and directory "--x" are different
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