171 lines
5.3 KiB
HTML
171 lines
5.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>QlgPathconf()--Get Configurable Path Name Variables (using NLS-enabled
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path name)</title>
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<!-- Begin Header Records -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- Created by Yvonne Griffin for V5R1-->
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<!-- Change History: -->
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<!-- 011022 JTROUS Changes from API Review 1, V5R2 -->
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<!-- This file has undergone html cleanup June 2002 by JET -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!--Java sync-link-->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>QlgPathconf()--Get Configurable Path Name Variables (using NLS-enabled path
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name)</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax<br>
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<pre>
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#include <unistd.h>
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long QlgPathconf(Qlg_Path_Name_T <em>*path</em>, int <em>name</em>);
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</pre>
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Service Program Name: QP0LLIB1<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Conditional; see Usage Notes for <a href="pathconf.htm">pathconf()</a>.<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>QlgPathconf()</strong> function, like the <strong>
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pathconf()</strong> function, lets an application determine the value of a
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configuration variable (<em>name</em>) associated with a particular file or
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directory (<em>path</em>). The difference is that the <strong>
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QlgPathconf()</strong> function takes a pointer to a Qlg_Path_Name_T structure,
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while <strong>pathconf()</strong> takes a pointer to a character string.</p>
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<p>Limited information on the <em>path</em> parameter is provided here. For
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more information on the <em>path</em> parameter and for a discussion of other
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parameters, authorities required, return values, and related information, see
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<a href="pathconf.htm">pathconf()</a>--Get Configurable Path Name
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Variables.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong><em>path</em></strong></dt>
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<dd>(Input) A pointer to a Qlg_Path_Name_T structure that contains a path name
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or a pointer to a path name for which the value of the configuration variable
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is requested. For more information on the Qlg_Path_Name_T structure, see <a
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href="../apiref/pns.htm">Path name format</a>.</dd>
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</dl>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href="fpathcon.htm">fpathconf()</a>--Get Configurable Path Name
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Variables by Descriptor<br>
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<br>
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</li>
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<li><a href="pathconf.htm">pathconf()</a>--Get Configurable Path Name
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Variables<br>
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<br>
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</li>
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<li><a href="chownu.htm">QlgChown()</a>--Change Owner and Group of File (using
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NLS-enabled path name)</li>
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</ul>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<p>The following example determines the maximum number of bytes in a file
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name:</p>
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<pre>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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main() {
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long result;
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#define mypath "/"
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const char US_const[3]= "US";
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const char Language_const[4] ="ENU";
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typedef struct pnstruct
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{
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Qlg_Path_Name_T qlg_struct;
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char pn[100]; /* This array size must be >= the */
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/* length of the path name or must */
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/* be a pointer to the path name. */
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};
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struct pnstruct path;
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/***************************************************************/
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/* Initialize Qlg_Path_Name_T parameters */
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/***************************************************************/
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memset((void*)&path, 0x00, sizeof(struct pnstruct));
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path.qlg_struct.CCSID = 37;
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memcpy(path.qlg_struct.Country_ID,US_const,2);
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memcpy(path.qlg_struct.Language_ID,Language_const,3);
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path.qlg_struct.Path_Type = QLG_CHAR_SINGLE;
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path.qlg_struct.Path_Length = sizeof(mypath)-1;
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path.qlg_struct.Path_Name_Delimiter[0] = '/';
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memcpy(path.pn,mypath,sizeof(mypath)-1);
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errno = 0;
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puts("examining NAME_MAX limit for root filesystem");
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if ((result = QlgPathconf((Qlg_Path_Name_T *)&path,
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_PC_NAME_MAX)) == -1)
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if (errno == 0)
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puts("There is no limit to NAME_MAX.");
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else perror("QlgPathconf() error");
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else
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printf("NAME_MAX is %ld\n", result);
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}
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</pre>
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<p><strong>Output:</strong></p>
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<pre>
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examining NAME_MAX limit for root filesystem
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NAME_MAX is 255
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</pre>
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<hr>
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API introduced: V5R1
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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