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<li class="navelem"><a class="el" href="dir_13e138d54eb8818da29c3992edef070a.html">test</a></li> </ul>
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<div class="headertitle"><div class="title">readdir_inode.c</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Prints each directory entry, its inode and d_type as returned by 'readdir'.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Skips '.' and '..' because readdir is not required to return them and</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * some of our examples don't. However if they are returned, their d_type</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * should be valid.</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> */</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include <string.h></span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <dirent.h></span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>* argv[])</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span>{</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> DIR* dirp;</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">struct </span>dirent* dent;</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keywordflow">if</span> (argc != 2) {</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> fprintf(stderr, <span class="stringliteral">"Usage: readdir_inode dir\n"</span>);</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordflow">return</span> 1;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> }</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> dirp = opendir(argv[1]);</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">if</span> (dirp == NULL) {</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> perror(<span class="stringliteral">"failed to open directory"</span>);</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">return</span> 2;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> }</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> errno = 0;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> dent = readdir(dirp);</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">while</span> (dent != NULL) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">if</span> (strcmp(dent->d_name, <span class="stringliteral">"."</span>) != 0 && strcmp(dent->d_name, <span class="stringliteral">".."</span>) != 0) {</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> printf(<span class="stringliteral">"%llu %d %s\n"</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span>)dent->d_ino,</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> (<span class="keywordtype">int</span>)dent->d_type, dent->d_name);</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">if</span> ((<span class="keywordtype">long</span> <span class="keywordtype">long</span>)dent->d_ino < 0)</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> fprintf(stderr,<span class="stringliteral">"%s : bad d_ino %llu\n"</span>,</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> dent->d_name, (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span>)dent->d_ino);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">if</span> ((dent->d_type < 1) || (dent->d_type > 15))</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> fprintf(stderr,<span class="stringliteral">"%s : bad d_type %d\n"</span>,</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> dent->d_name, (<span class="keywordtype">int</span>)dent->d_type);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">if</span> (dent->d_type != DT_DIR)</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> fprintf(stderr,<span class="stringliteral">"%s : bad d_type %d\n"</span>,</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> dent->d_name, (<span class="keywordtype">int</span>)dent->d_type);</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> }</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> dent = readdir(dirp);</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> }</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">if</span> (errno != 0) {</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> perror(<span class="stringliteral">"failed to read directory entry"</span>);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> 3;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> closedir(dirp);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>}</div>
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