<!-- This comment will put IE 6, 7 and 8 in quirks mode --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Apache Portable Runtime: Functions for manipulating the environment</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javaScript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body onload='searchBox.OnSelectItem(0);'> <!-- Generated by Doxygen 1.6.3 --> <script type="text/javascript"><!-- var searchBox = new SearchBox("searchBox", "search",false,'Search'); --></script> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <img id="MSearchSelect" src="search/search.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" onkeyup="searchBox.OnSearchFieldChange(event)"/> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </div> </li> </ul> </div> </div> <div class="contents"> <h1>Functions for manipulating the environment<br/> <small> [<a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a>]</small> </h1><table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__env.html#gada7cd6ccada789a3738f8fc6334da809">apr_env_get</a> (char **value, const char *envvar, <a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *pool)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__env.html#gae11f733a639393a35e82c795f4ecd470">apr_env_set</a> (const char *envvar, const char *value, <a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *pool)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__env.html#ga2bfac0686199b2fee97a7638df7cbfdc">apr_env_delete</a> (const char *envvar, <a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *pool)</td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga2bfac0686199b2fee97a7638df7cbfdc"></a><!-- doxytag: member="apr_env.h::apr_env_delete" ref="ga2bfac0686199b2fee97a7638df7cbfdc" args="(const char *envvar, apr_pool_t *pool)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_env_delete </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"> <em>envvar</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td> <td class="paramname"> <em>pool</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Delete a variable from the environment </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>envvar</em> </td><td>the name of the environment variable </td></tr> <tr><td valign="top"></td><td valign="top"><em>pool</em> </td><td>where to allocate temporary storage from </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gada7cd6ccada789a3738f8fc6334da809"></a><!-- doxytag: member="apr_env.h::apr_env_get" ref="gada7cd6ccada789a3738f8fc6334da809" args="(char **value, const char *envvar, apr_pool_t *pool)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_env_get </td> <td>(</td> <td class="paramtype">char ** </td> <td class="paramname"> <em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char * </td> <td class="paramname"> <em>envvar</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td> <td class="paramname"> <em>pool</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Get the value of an environment variable </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>value</em> </td><td>the returned value, allocated from <em>pool</em> </td></tr> <tr><td valign="top"></td><td valign="top"><em>envvar</em> </td><td>the name of the environment variable </td></tr> <tr><td valign="top"></td><td valign="top"><em>pool</em> </td><td>where to allocate <em>value</em> and any temporary storage from </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gae11f733a639393a35e82c795f4ecd470"></a><!-- doxytag: member="apr_env.h::apr_env_set" ref="gae11f733a639393a35e82c795f4ecd470" args="(const char *envvar, const char *value, apr_pool_t *pool)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_env_set </td> <td>(</td> <td class="paramtype">const char * </td> <td class="paramname"> <em>envvar</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char * </td> <td class="paramname"> <em>value</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td> <td class="paramname"> <em>pool</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Set the value of an environment variable </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>envvar</em> </td><td>the name of the environment variable </td></tr> <tr><td valign="top"></td><td valign="top"><em>value</em> </td><td>the value to set </td></tr> <tr><td valign="top"></td><td valign="top"><em>pool</em> </td><td>where to allocate temporary storage from </td></tr> </table> </dd> </dl> </div> </div> </div> <!--- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a 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