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<h1>Source code for terminatorlib.freebsd</h1><div class="highlight"><pre>
<span class="c">#!/usr/bin/python</span>
<span class="c">#</span>
<span class="c"># Copyright (c) 2008, Thomas Hurst &lt;tom@hur.st&gt;</span>
<span class="c">#</span>
<span class="c"># Use of this file is unrestricted provided this notice is retained.</span>
<span class="c"># If you use it, it&#39;d be nice if you dropped me a note. Also beer.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> freebsd.get_process_cwd(pid):</span>
<span class="sd"> Use sysctl() to retrieve the cwd of an arbitrary process on FreeBSD</span>
<span class="sd"> using kern.proc.filedesc, as used by procstat(1).</span>
<span class="sd"> Tested on FreeBSD 7-STABLE/amd64 from April 11 2008.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">ctypes</span> <span class="kn">import</span> <span class="o">*</span>
<div class="viewcode-block" id="sockaddr_storage"><a class="viewcode-back" href="../../terminatorlib.html#terminatorlib.freebsd.sockaddr_storage">[docs]</a><span class="k">class</span> <span class="nc">sockaddr_storage</span><span class="p">(</span><span class="n">Structure</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;struct sockaddr_storage, defined in /usr/include/sys/socket.h&quot;&quot;&quot;</span>
<span class="n">_fields_</span> <span class="o">=</span> <span class="p">[</span>
<span class="p">(</span><span class="s">&#39;ss_len&#39;</span><span class="p">,</span> <span class="n">c_char</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;ss_family&#39;</span><span class="p">,</span> <span class="n">c_char</span><span class="p">),</span> <span class="c"># /usr/include/sys/_types.h; _uint8_t</span>
<span class="p">(</span><span class="s">&#39;__ss_pad1&#39;</span><span class="p">,</span> <span class="n">c_char</span> <span class="o">*</span> <span class="mi">6</span><span class="p">),</span> <span class="c"># (sizeof(int64) - sizeof(char) - sizeof(ss_family_t))</span>
<span class="p">(</span><span class="s">&#39;__ss_align&#39;</span><span class="p">,</span> <span class="n">c_longlong</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;__ss_pad2&#39;</span><span class="p">,</span> <span class="n">c_char</span> <span class="o">*</span> <span class="mi">112</span><span class="p">),</span> <span class="c"># (128(maxsize) - sizeof(char) - sizeof(ss_family_t) -</span>
<span class="c"># sizeof(ss_pad1) - sizeof(int64))</span>
<span class="p">]</span>
</div>
<div class="viewcode-block" id="kinfo_file"><a class="viewcode-back" href="../../terminatorlib.html#terminatorlib.freebsd.kinfo_file">[docs]</a><span class="k">class</span> <span class="nc">kinfo_file</span><span class="p">(</span><span class="n">Structure</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;struct kinfo_file, defined in /usr/include/sys/user.h &quot;&quot;&quot;</span>
<span class="n">_fields_</span> <span class="o">=</span> <span class="p">[</span>
<span class="p">(</span><span class="s">&#39;kf_structsize&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_type&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_fd&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_ref_count&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_flags&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_offset&#39;</span><span class="p">,</span> <span class="n">c_size_t</span><span class="p">),</span> <span class="c"># this is a off_t, a pointer</span>
<span class="p">(</span><span class="s">&#39;kf_vnode_type&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_sock_domain&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_sock_type&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_sock_protocol&#39;</span><span class="p">,</span> <span class="n">c_int</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_path&#39;</span><span class="p">,</span> <span class="n">c_char</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">),</span> <span class="c"># PATH_MAX</span>
<span class="p">(</span><span class="s">&#39;kf_sa_local&#39;</span><span class="p">,</span> <span class="n">sockaddr_storage</span><span class="p">),</span>
<span class="p">(</span><span class="s">&#39;kf_sa_peer&#39;</span><span class="p">,</span> <span class="n">sockaddr_storage</span><span class="p">),</span>
<span class="p">]</span>
</div>
<span class="n">libc</span> <span class="o">=</span> <span class="n">CDLL</span><span class="p">(</span><span class="s">&#39;libc.so.7&#39;</span><span class="p">)</span>
<span class="n">uintlen</span> <span class="o">=</span> <span class="n">c_size_t</span><span class="p">(</span><span class="n">sizeof</span><span class="p">(</span><span class="n">c_uint</span><span class="p">))</span>
<span class="n">ver</span> <span class="o">=</span> <span class="n">c_uint</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">libc</span><span class="o">.</span><span class="n">sysctlbyname</span><span class="p">(</span><span class="s">&#39;kern.osreldate&#39;</span><span class="p">,</span> <span class="n">byref</span><span class="p">(</span><span class="n">ver</span><span class="p">),</span> <span class="n">byref</span><span class="p">(</span><span class="n">uintlen</span><span class="p">),</span> <span class="bp">None</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">OSError</span><span class="p">,</span> <span class="s">&quot;sysctlbyname returned &lt; 0&quot;</span>
<span class="c"># kern.proc.filedesc added for procstat(1) after these __FreeBSD_versions</span>
<span class="k">if</span> <span class="n">ver</span><span class="o">.</span><span class="n">value</span> <span class="o">&lt;</span> <span class="mi">700104</span> <span class="ow">and</span> <span class="n">ver</span><span class="o">.</span><span class="n">value</span> <span class="o">&lt;</span> <span class="mi">800019</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">,</span> <span class="s">&quot;cwd detection requires a recent 7.0-STABLE or 8-CURRENT&quot;</span>
<div class="viewcode-block" id="get_process_cwd"><a class="viewcode-back" href="../../terminatorlib.html#terminatorlib.freebsd.get_process_cwd">[docs]</a><span class="k">def</span> <span class="nf">get_process_cwd</span><span class="p">(</span><span class="n">pid</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return string containing the current working directory of the given pid,</span>
<span class="sd"> or None on failure.&quot;&quot;&quot;</span>
<span class="c"># /usr/include/sys/sysctl.h</span>
<span class="c"># CTL_KERN, KERN_PROC, KERN_PROC_FILEDESC</span>
<span class="n">oid</span> <span class="o">=</span> <span class="p">(</span><span class="n">c_uint</span> <span class="o">*</span> <span class="mi">4</span><span class="p">)(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">14</span><span class="p">,</span> <span class="mi">14</span><span class="p">,</span> <span class="n">pid</span><span class="p">)</span>
<span class="k">if</span> <span class="n">libc</span><span class="o">.</span><span class="n">sysctl</span><span class="p">(</span><span class="n">oid</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="n">byref</span><span class="p">(</span><span class="n">uintlen</span><span class="p">),</span> <span class="bp">None</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="n">buf</span> <span class="o">=</span> <span class="n">c_char_p</span><span class="p">(</span><span class="s">&quot; &quot;</span> <span class="o">*</span> <span class="n">uintlen</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">if</span> <span class="n">libc</span><span class="o">.</span><span class="n">sysctl</span><span class="p">(</span><span class="n">oid</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="n">buf</span><span class="p">,</span> <span class="n">byref</span><span class="p">(</span><span class="n">uintlen</span><span class="p">),</span> <span class="bp">None</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="n">kifs</span> <span class="o">=</span> <span class="n">cast</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">POINTER</span><span class="p">(</span><span class="n">kinfo_file</span><span class="p">))</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">uintlen</span><span class="o">.</span><span class="n">value</span> <span class="o">/</span> <span class="n">sizeof</span><span class="p">(</span><span class="n">kinfo_file</span><span class="p">)):</span>
<span class="n">kif</span> <span class="o">=</span> <span class="n">kifs</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="k">if</span> <span class="n">kif</span><span class="o">.</span><span class="n">kf_fd</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span> <span class="c"># KF_FD_TYPE_CWD</span>
<span class="k">return</span> <span class="n">kif</span><span class="o">.</span><span class="n">kf_path</span>
</div>
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;__main__&#39;</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">os</span><span class="o">,</span> <span class="nn">sys</span>
<span class="k">print</span> <span class="s">&quot; =&gt; </span><span class="si">%d</span><span class="s"> cwd = </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">getpid</span><span class="p">(),</span> <span class="n">get_process_cwd</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">getpid</span><span class="p">()))</span>
<span class="k">for</span> <span class="n">pid</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">pid</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">pid</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">print</span> <span class="s">&quot; =&gt; </span><span class="si">%d</span><span class="s"> cwd = </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">pid</span><span class="p">,</span> <span class="n">get_process_cwd</span><span class="p">(</span><span class="n">pid</span><span class="p">))</span>
</pre></div>
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