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<a href="ioctl__client_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> FUSE fioclient: FUSE ioctl example client</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 2008 SUSE Linux Products GmbH</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (C) 2008 Tejun Heo <teheo@suse.de></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> This program tests the ioctl.c example file systsem.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> This program can be distributed under the terms of the GNU GPL.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> See the file COPYING.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">*/</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <sys/types.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <fcntl.h></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <sys/stat.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <sys/ioctl.h></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <stdio.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <stdlib.h></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <ctype.h></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="ioctl_8h.html">ioctl.h</a>"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *usage =</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="stringliteral">"Usage: fioclient FIOC_FILE [size]\n"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="stringliteral">"\n"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="stringliteral">"Get size if <size> is omitted, set size otherwise\n"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="stringliteral">"\n"</span>;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">size_t</span> size;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">int</span> fd;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (argc < 2) {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  fprintf(stderr, <span class="stringliteral">"%s"</span>, usage);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  fd = open(argv[1], O_RDWR);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (fd < 0) {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  perror(<span class="stringliteral">"open"</span>);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (argc == 2) {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (ioctl(fd, FIOC_GET_SIZE, &size)) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  perror(<span class="stringliteral">"ioctl"</span>);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  printf(<span class="stringliteral">"%zu\n"</span>, size);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  size = strtoul(argv[2], NULL, 0);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">if</span> (ioctl(fd, FIOC_SET_SIZE, &size)) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  perror(<span class="stringliteral">"ioctl"</span>);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div><div class="ttc" id="ioctl_8h_html"><div class="ttname"><a href="ioctl_8h.html">ioctl.h</a></div></div>
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