185 lines
6.0 KiB
HTML
185 lines
6.0 KiB
HTML
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<!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>QlgAccessx()--Determine File Accessibility for a Class of Users (using
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NLS-enabled 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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<!-- Change History: -->
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<!-- 010314 JKUGEL: created in V5R2, DCR 98686 -->
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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>QlgAccessx()--Determine File Accessibility for a Class of Users (using
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NLS-enabled path name)</h2>
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<div class="box" style="width: 70%;">
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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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int QlgAccessx(const Qlg_Path_Name_T <em>*path</em>, int <em>amode</em>, int <em>who</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="accessx.htm">accessx()</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>QlgAccessx()</strong> function, like the <strong>
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accessx()</strong> function, determines whether a file can be accessed in a
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particular manner by a specified class of users. The difference is that the
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<strong>QlgAccessx()</strong> function takes a pointer to a Qlg_Path_Name_T
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structure, while <strong>accessx()</strong> takes a pointer to a character
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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="accessx.htm">accessx()</a>--Determine File Accessibility for a Class
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of Users.</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 the file to be checked for accessibility. For
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more information on the Qlg_Path_Name_T structure, see <a href="../apiref/pns.htm">Path
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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="access.htm">access()</a>--Determine File Accessiblity
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</li>
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<li><a href="accessx.htm">accessx()</a>--Determine File Accessibility for a
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Class of Users
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</li>
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<li><a href="faccessx.htm">faccessx()</a>--Determine File Accessibility for a
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Class of Users
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</li>
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<li><a href="accessu.htm">QlgAccess()</a>--Determine File Accessibility (using
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NLS-enabled path name)
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</li>
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<li><a href="chmodu.htm">QlgChmod()</a>--Change File Authorizations (using
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NLS-enabled path name)
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</li>
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<li><a href="statu.htm">QlgStat()</a>--Get File Information (using NLS-enabled
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path name)
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</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 how a file is accessed:</p>
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<pre>
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#include <stdio.h>
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#include <unistd.h>
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main()
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{
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/****************************************************************/
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/* Defininitons */
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/****************************************************************/
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#define mypath "/myfile"
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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 this 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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if (QlgAccessx((Qlg_Path_Name_T *)&path, R_OK, ACC_OTHERS) == 0)
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printf("Someone besides the owner has read access to '%s'\n", mypath);
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if (QlgAccessx((Qlg_Path_Name_T *)&path, W_OK, ACC_OTHERS) == 0)
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printf("Someone besides the owner has write access to '%s'\n", mypath);
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if (QlgAccessx((Qlg_Path_Name_T *)&path, X_OK, ACC_OTHERS) == 0)
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printf("Someone besides the owner has search access to '%s'\n", mypath);
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}
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</pre>
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<p><strong>Output:</strong></p>
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<p>In this example <strong>QlgAccessx()</strong> was called on '/myfile'. The
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following would be the output if someone other than the owner has *R authority,
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someone besides the owner has *W authority, and noone other than the owner has
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*X authority.</p>
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<pre>
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Someone besides the owner has read access to '/'
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Someone besides the owner has write access to '/'
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</pre>
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<hr>
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API introduced: V5R2
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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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