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<div class="title">ioctl_client.c File Reference</div> </div>
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<div class="textblock"><code>#include <sys/types.h></code><br />
<code>#include <fcntl.h></code><br />
<code>#include <sys/stat.h></code><br />
<code>#include <sys/ioctl.h></code><br />
<code>#include <stdio.h></code><br />
<code>#include <stdlib.h></code><br />
<code>#include <ctype.h></code><br />
<code>#include <errno.h></code><br />
<code>#include <unistd.h></code><br />
<code>#include "<a class="el" href="ioctl_8h_source.html">ioctl.h</a>"</code><br />
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<p><a href="ioctl__client_8c_source.html">Go to the source code of this file.</a></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This program tests the <a class="el" href="ioctl_8c.html">ioctl.c</a> example file systsem.</p>
<p>Compile with: </p><pre class="fragment">gcc -Wall ioctl_client.c -o ioctl_client
</pre><h2>Source code</h2>
<div class="fragment"><div class="line"><span class="comment">/*</span></div><div class="line"><span class="comment"> FUSE fioclient: FUSE ioctl example client</span></div><div class="line"><span class="comment"> Copyright (C) 2008 SUSE Linux Products GmbH</span></div><div class="line"><span class="comment"> Copyright (C) 2008 Tejun Heo <teheo@suse.de></span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> This program tests the ioctl.c example file systsem.</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> This program can be distributed under the terms of the GNU GPLv2.</span></div><div class="line"><span class="comment"> See the file COPYING.</span></div><div class="line"><span class="comment">*/</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include <sys/types.h></span></div><div class="line"><span class="preprocessor">#include <fcntl.h></span></div><div class="line"><span class="preprocessor">#include <sys/stat.h></span></div><div class="line"><span class="preprocessor">#include <sys/ioctl.h></span></div><div class="line"><span class="preprocessor">#include <stdio.h></span></div><div class="line"><span class="preprocessor">#include <stdlib.h></span></div><div class="line"><span class="preprocessor">#include <ctype.h></span></div><div class="line"><span class="preprocessor">#include <errno.h></span></div><div class="line"><span class="preprocessor">#include <unistd.h></span></div><div class="line"><span class="preprocessor">#include "<a class="code" href="ioctl_8h.html">ioctl.h</a>"</span></div><div class="line"></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">char</span> *usage =</div><div class="line"><span class="stringliteral">"Usage: fioclient FIOC_FILE [size]\n"</span></div><div class="line"><span class="stringliteral">"\n"</span></div><div class="line"><span class="stringliteral">"Get size if <size> is omitted, set size otherwise\n"</span></div><div class="line"><span class="stringliteral">"\n"</span>;</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div><div class="line">{</div><div class="line"> <span class="keywordtype">size_t</span> size;</div><div class="line"> <span class="keywordtype">int</span> fd;</div><div class="line"> <span class="keywordtype">int</span> ret = 0;</div><div class="line"></div><div class="line"> <span class="keywordflow">if</span> (argc < 2) {</div><div class="line"> fprintf(stderr, <span class="stringliteral">"%s"</span>, usage);</div><div class="line"> <span class="keywordflow">return</span> 1;</div><div class="line"> }</div><div class="line"></div><div class="line"> fd = open(argv[1], O_RDWR);</div><div class="line"> <span class="keywordflow">if</span> (fd < 0) {</div><div class="line"> perror(<span class="stringliteral">"open"</span>);</div><div class="line"> <span class="keywordflow">return</span> 1;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keywordflow">if</span> (argc == 2) {</div><div class="line"> <span class="keywordflow">if</span> (ioctl(fd, FIOC_GET_SIZE, &size)) {</div><div class="line"> perror(<span class="stringliteral">"ioctl"</span>);</div><div class="line"> ret = 1;</div><div class="line"> <span class="keywordflow">goto</span> out;</div><div class="line"> }</div><div class="line"> printf(<span class="stringliteral">"%zu\n"</span>, size);</div><div class="line"> } <span class="keywordflow">else</span> {</div><div class="line"> size = strtoul(argv[2], NULL, 0);</div><div class="line"> <span class="keywordflow">if</span> (ioctl(fd, FIOC_SET_SIZE, &size)) {</div><div class="line"> perror(<span class="stringliteral">"ioctl"</span>);</div><div class="line"> ret = 1;</div><div class="line"> <span class="keywordflow">goto</span> out;</div><div class="line"> }</div><div class="line"> }</div><div class="line">out:</div><div class="line"> close(fd);</div><div class="line"> <span class="keywordflow">return</span> ret;</div><div class="line">}</div></div><!-- fragment -->
<p class="definition">Definition in file <a class="el" href="ioctl__client_8c_source.html">ioctl_client.c</a>.</p>
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