200 lines
6.4 KiB
HTML
200 lines
6.4 KiB
HTML
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
|
||
|
|
<title>QlgSymlink()--Make Symbolic Link (using NLS-enabled path name)</title>
|
||
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
||
|
|
<!-- US Government Users Restricted Rights -->
|
||
|
|
<!-- Use, duplication or disclosure restricted by -->
|
||
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
||
|
|
<!-- Begin Header Records --><!-- file cleaned -->
|
||
|
|
<!-- Created by Yvonne Griffin for V5R1-->
|
||
|
|
<!-- This file has undergone html cleanup June 2002 by JET -->
|
||
|
|
<!-- End Header Records -->
|
||
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<a name="Top_Of_Page"></a>
|
||
|
|
<!--Java sync-link-->
|
||
|
|
<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<h2>QlgSymlink()--Make Symbolic Link (using NLS-enabled path name)</h2>
|
||
|
|
|
||
|
|
<div class="box" style="width: 60%;">
|
||
|
|
<br>
|
||
|
|
Syntax<br>
|
||
|
|
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
int QlgSymlink(
|
||
|
|
Qlg_Path_Name_T <em>*pname</em>, Qlg_Path_Name_T <em>*slink</em>);
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
Service Program Name: QP0LLIB1<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Default Public Authority: *USE<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Threadsafe: Conditional; see Usage Notes for <a href=
|
||
|
|
"symlink.htm">symlink()</a>.<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<p>The <strong>QlgSymlink()</strong> function, like the <strong>
|
||
|
|
symlink()</strong> function, creates the symbolic link named by <em>slink</em>
|
||
|
|
with the value specified by <em>pname</em>. The difference is that the <strong>
|
||
|
|
QlgSymlink()</strong> function takes a pointer to a Qlg_Path_Name_T structure,
|
||
|
|
while <strong>symlink()</strong> takes a pointer to a character string.</p>
|
||
|
|
|
||
|
|
<p>Limited information on the <em>*pname</em> and the <em>*slink</em> parameter
|
||
|
|
is provided here. For more information on these parameters and for a discussion
|
||
|
|
of authorities required, return values, and related information, see <a href=
|
||
|
|
"symlink.htm">symlink()</a>--Make Symbolic Link.</p>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Parameters</h3>
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><strong><em>pname</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) A pointer to a Qlg_Path_Name_T structure that contains a value or a
|
||
|
|
pointer to a value of the symbolic link. For more information on the
|
||
|
|
Qlg_Path_Name_T structure, see <a href="../apiref/pns.htm">Path name format</a>.<br>
|
||
|
|
</dd>
|
||
|
|
|
||
|
|
<dt><strong><em>slink</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) A pointer to a Qlg_Path_Name_T structure that contains a name or a
|
||
|
|
pointer to a name of the symbolic link to be created. For more information on
|
||
|
|
the Qlg_Path_Name_T structure, see <a href="../apiref/pns.htm">Path name format</a>.</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Related Information</h3>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="symlink.htm">symlink()</a>--Make Symbolic Link</li>
|
||
|
|
|
||
|
|
<li><a href="linku.htm">QlgLink()</a>--Create Link to File (using NLS-enabled
|
||
|
|
path name)</li>
|
||
|
|
|
||
|
|
<li><a href="readlinku.htm">QlgReadlink()</a>--Read Value of Symbolic Link
|
||
|
|
(using NLS-enabled path name)</li>
|
||
|
|
|
||
|
|
<li><a href="qp0lunlk.htm">Qp0lUnlink()</a>--Remove Link to File</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Example</h3>
|
||
|
|
|
||
|
|
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
|
||
|
|
for information pertaining to code examples.</p>
|
||
|
|
|
||
|
|
<p>The following example uses <strong>QlgSymlink()</strong>:</p>
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <Qp0lstdi.h>
|
||
|
|
|
||
|
|
main() {
|
||
|
|
char buf[30];
|
||
|
|
int fd;
|
||
|
|
#define mypath_fn "readlink.file"
|
||
|
|
#define mypath_sl "readlink.symlink"
|
||
|
|
|
||
|
|
const char US_const[3]= "US";
|
||
|
|
const char Language_const[4]="ENU";
|
||
|
|
typedef struct pnstruct
|
||
|
|
{
|
||
|
|
Qlg_Path_Name_T qlg_struct;
|
||
|
|
char pn[100]; /* This array size must be >= */
|
||
|
|
/* the length of the path name or */
|
||
|
|
/* this must be a pointer to the */
|
||
|
|
/* path name. */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct pnstruct path_fn;
|
||
|
|
struct pnstruct path_sl;
|
||
|
|
struct pnstruct path_buf;
|
||
|
|
|
||
|
|
/***************************************************************/
|
||
|
|
/* Initialize Qlg_Path_Name_T parameters */
|
||
|
|
/***************************************************************/
|
||
|
|
memset((void*)&path_fn, 0x00, sizeof(struct pnstruct));
|
||
|
|
path_fn.qlg_struct.CCSID = 37;
|
||
|
|
memcpy(path_fn.qlg_struct.Country_ID,US_const,2);
|
||
|
|
memcpy(path_fn.qlg_struct.Language_ID,Language_const,3);
|
||
|
|
path_fn.qlg_struct.Path_Type = QLG_CHAR_SINGLE;
|
||
|
|
path_fn.qlg_struct.Path_Length = sizeof(mypath_fn)-1;
|
||
|
|
path_fn.qlg_struct.Path_Name_Delimiter[0] = '/';
|
||
|
|
memcpy(path_fn.pn,mypath_sl,sizeof(mypath_fn)-1);
|
||
|
|
|
||
|
|
memset((void*)&path_sl, 0x00, sizeof(struct pnstruct));
|
||
|
|
path_sl.qlg_struct.CCSID = 37;
|
||
|
|
memcpy(path_sl.qlg_struct.Country_ID,US_const,2);
|
||
|
|
memcpy(path_sl.qlg_struct.Language_ID,Language_const,3);
|
||
|
|
path_sl.qlg_struct.Path_Type = QLG_CHAR_SINGLE;
|
||
|
|
path_sl.qlg_struct.Path_Length = sizeof(mypath_sl)-1;
|
||
|
|
path_sl.qlg_struct.Path_Name_Delimiter[0] = '/';
|
||
|
|
memcpy(path_sl.pn,mypath_sl,sizeof(mypath_sl)-1);
|
||
|
|
|
||
|
|
if ((fd = QlgCreat((Qlg_Path_Name_T *)&path_fn, S_IWUSR))
|
||
|
|
< 0)
|
||
|
|
perror("QlgCreat() error");
|
||
|
|
else {
|
||
|
|
close(fd);
|
||
|
|
if (QlgSymlink((Qlg_Path_Name_T *)&path_fn,
|
||
|
|
(Qlg_Path_Name_T *)&path_sl) != 0)
|
||
|
|
perror("QlgSymlink() error");
|
||
|
|
|
||
|
|
else {
|
||
|
|
if (QlgReadlink((Qlg_Path_Name_T *)&path_sl,
|
||
|
|
(Qlg_Path_Name_T *)&path_buf,
|
||
|
|
sizeof(struct pnstruct))
|
||
|
|
< 0)
|
||
|
|
perror("QlgReadlink() error");
|
||
|
|
|
||
|
|
else printf("QlgReadlink() returned '%s' for '%s'\n",
|
||
|
|
(Qlg_Path_Name_T *)&path_buf.pn,
|
||
|
|
(Qlg_Path_Name_T *)&path_sl.pn);
|
||
|
|
|
||
|
|
QlgUnlink((Qlg_Path_Name_T *)&path_sl);
|
||
|
|
}
|
||
|
|
QlgUnlink((Qlg_Path_Name_T *)&path_fn);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
<p><strong>Output:</strong></p>
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
QlgReadlink() returned 'readlink.file' for 'readlink.symlink'
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
API introduced: V5R1
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<center>
|
||
|
|
<table cellpadding="2" cellspacing="2">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
|
||
|
|
"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</center>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|