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diff --git a/man/sd_pid_get_user_unit.html b/man/sd_pid_get_user_unit.html index 4d2c9a7f62..8558be8f55 100644 --- a/man/sd_pid_get_user_unit.html +++ b/man/sd_pid_get_user_unit.html @@ -19,17 +19,17 @@ <a href="systemd.directives.html">Directives </a>· <a href="../python-systemd/index.html">Python </a>· <a href="../libudev/index.html">libudev </a>· - <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 219</span><hr><div class="refentry"><a name="sd_pid_get_session"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sd_pid_get_session, sd_pid_get_unit, sd_pid_get_user_unit, sd_pid_get_owner_uid, sd_pid_get_machine_name, sd_pid_get_slice, sd_peer_get_session, sd_peer_get_unit, sd_peer_get_user_unit, sd_peer_get_owner_uid, sd_peer_get_machine_name, sd_peer_get_slice — Determine session, service, owner of a + <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 220</span><hr><div class="refentry"><a name="sd_pid_get_session"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sd_pid_get_session, sd_pid_get_unit, sd_pid_get_user_unit, sd_pid_get_owner_uid, sd_pid_get_machine_name, sd_pid_get_slice, sd_peer_get_session, sd_peer_get_unit, sd_peer_get_user_unit, sd_peer_get_owner_uid, sd_peer_get_machine_name, sd_peer_get_slice — Determine session, service, owner of a session, container/VM or slice of a specific - PID or socket peer</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include <systemd/sd-login.h></pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_session</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">session</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_unit</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_user_unit</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_owner_uid</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>uid_t *<var class="pdparam">uid</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_machine_name</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_slice</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">slice</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_session</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">session</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_unit</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_user_unit</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_owner_uid</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>uid_t *<var class="pdparam">uid</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_machine_name</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_slice</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">slice</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm139799154390592"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="function">sd_pid_get_session()</code> may be used to + PID or socket peer</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include <systemd/sd-login.h></pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_session</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">session</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_unit</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_user_unit</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_owner_uid</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>uid_t *<var class="pdparam">uid</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_machine_name</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_pid_get_slice</b>(</code></td><td>pid_t <var class="pdparam">pid</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">slice</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_session</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">session</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_unit</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_user_unit</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">unit</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_owner_uid</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>uid_t *<var class="pdparam">uid</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_machine_name</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_peer_get_slice</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>char **<var class="pdparam">slice</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm139823386613200"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="function">sd_pid_get_session()</code> may be used to determine the login session identifier of a process identified by the specified process identifier. The session identifier is a short string, suitable for usage in file system paths. Note that not all processes are part of a login session (e.g. system service processes, user processes that are shared between multiple sessions of the same user, or kernel threads). For processes not - being part of a login session this function will fail. The - returned string needs to be freed with the libc + being part of a login session this function will fail with + -ENXIO. The returned string needs to be freed with the libc <a href="http://man7.org/linux/man-pages/man3/free.3.html"><span class="citerefentry"><span class="refentrytitle">free</span>(3)</span></a> call after use.</p><p><code class="function">sd_pid_get_unit()</code> may be used to determine the systemd system unit (i.e. system service) identifier @@ -37,10 +37,10 @@ short string, suitable for usage in file system paths. Note that not all processes are part of a system unit/service (e.g. user processes, or kernel threads). For processes not being part of a - systemd system unit this function will fail. (More specifically: - this call will not work for processes that are part of user units, - use <code class="function">sd_pid_get_user_unit()</code> for that.) The - returned string needs to be freed with the libc + systemd system unit this function will fail with -ENXIO (More + specifically: this call will not work for processes that are part + of user units, use <code class="function">sd_pid_get_user_unit()</code> for + that.) The returned string needs to be freed with the libc <a href="http://man7.org/linux/man-pages/man3/free.3.html"><span class="citerefentry"><span class="refentrytitle">free</span>(3)</span></a> call after use.</p><p><code class="function">sd_pid_get_user_unit()</code> may be used to determine the systemd user unit (i.e. user service) identifier of @@ -53,12 +53,13 @@ login sessions of the same user, where <code class="function">sd_pid_get_session()</code> will fail. For processes not being part of a login session and not being a shared process - of a user this function will fail.</p><p><code class="function">sd_pid_get_machine_name()</code> may be used + of a user this function will fail with -ENXIO.</p><p><code class="function">sd_pid_get_machine_name()</code> may be used to determine the name of the VM or container is a member of. The machine name is a short string, suitable for usage in file system paths. The returned string needs to be freed with the libc <a href="http://man7.org/linux/man-pages/man3/free.3.html"><span class="citerefentry"><span class="refentrytitle">free</span>(3)</span></a> - call after use.</p><p><code class="function">sd_pid_get_slice()</code> may be used to + call after use. For processes not part of a VM or containers this + function fails with -ENXIO.</p><p><code class="function">sd_pid_get_slice()</code> may be used to determine the slice unit the process is a member of. See <a href="systemd.slice.html"><span class="citerefentry"><span class="refentrytitle">systemd.slice</span>(5)</span></a> for details about slices. The returned string needs to be freed @@ -73,9 +74,11 @@ <code class="function">sd_peer_get_machine_name()</code> and <code class="function">sd_peer_get_slice()</code> calls operate similar to their PID counterparts, but operate on a connected AF_UNIX socket - and retrieve information about the connected peer process.</p></div><div class="refsect1"><a name="idm139799149455248"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On success, these calls return 0 or a positive integer. On + and retrieve information about the connected peer process.</p></div><div class="refsect1"><a name="idm139823386593072"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On success, these calls return 0 or a positive integer. On failure, these calls return a negative errno-style error - code.</p></div><div class="refsect1"><a name="idm139799149453952"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p>The <code class="function">sd_pid_get_session()</code>, + code.</p></div><div class="refsect1"><a name="idm139823386591776"></a><h2 id="Errors">Errors<a class="headerlink" title="Permalink to this headline" href="#Errors">¶</a></h2><p>Returned errors may indicate the following problems:</p><div class="variablelist"><dl class="variablelist"><dt id="-ENXIO"><span class="term"><code class="constant">-ENXIO</code></span><a class="headerlink" title="Permalink to this term" href="#-ENXIO">¶</a></dt><dd><p>Given field is not specified for the described + process or peer.</p></dd><dt id="-ESRCH"><span class="term"><code class="constant">-ESRCH</code></span><a class="headerlink" title="Permalink to this term" href="#-ESRCH">¶</a></dt><dd><p>The specified PID does not refer to a running + process.</p></dd><dt id="-ENOMEM"><span class="term"><code class="constant">-ENOMEM</code></span><a class="headerlink" title="Permalink to this term" href="#-ENOMEM">¶</a></dt><dd><p>Memory allocation failed.</p></dd></dl></div></div><div class="refsect1"><a name="idm139823386585760"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p>The <code class="function">sd_pid_get_session()</code>, <code class="function">sd_pid_get_unit()</code>, <code class="function">sd_pid_get_user_unit()</code>, <code class="function">sd_pid_get_owner_uid()</code>, @@ -94,7 +97,7 @@ returned by <code class="function">sd_pid_get_session()</code> is completely unrelated to the process session identifier as returned by - <a href="http://man7.org/linux/man-pages/man2/getsid.2.html"><span class="citerefentry"><span class="refentrytitle">getsid</span>(2)</span></a>.</p></div><div class="refsect1"><a name="idm139799149442016"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p> + <a href="http://man7.org/linux/man-pages/man2/getsid.2.html"><span class="citerefentry"><span class="refentrytitle">getsid</span>(2)</span></a>.</p></div><div class="refsect1"><a name="idm139823386573728"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p> <a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>, <a href="sd-login.html"><span class="citerefentry"><span class="refentrytitle">sd-login</span>(3)</span></a>, <a href="sd_session_is_active.html"><span class="citerefentry"><span class="refentrytitle">sd_session_is_active</span>(3)</span></a>, |