165 lines
4.7 KiB
HTML
165 lines
4.7 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>QlgOpen()--Open a File (using NLS-enabled path name)</title>
|
||
|
|
<!-- Begin Header Records -->
|
||
|
|
<!-- 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. -->
|
||
|
|
<!-- Change History: -->
|
||
|
|
<!-- YYMMDD USERID Change description -->
|
||
|
|
<!-- 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>
|
||
|
|
<!--Java sync-link-->
|
||
|
|
<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<a name="Top_Of_Page"></a>
|
||
|
|
|
||
|
|
<h2>QlgOpen()--Open a File (using NLS-enabled path name)</h2>
|
||
|
|
|
||
|
|
<div class="box" style="width: 70%;">
|
||
|
|
<br>
|
||
|
|
Syntax<br>
|
||
|
|
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <Qp0lstdi.h>
|
||
|
|
|
||
|
|
int QlgOpen(Qlg_Path_Name_T <em>*Path_Name</em>,
|
||
|
|
int <em>oflag</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="open.htm">open()</a> API.<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<p>The <strong>QlgOpen()</strong> function, like the <strong>open()</strong>
|
||
|
|
function, opens a file or creates a new, empty file whose name is defined by
|
||
|
|
<em>path</em> and returns a number called a <strong>file descriptor</strong>.
|
||
|
|
The difference is that the <strong>QlgOpen()</strong> function takes a pointer
|
||
|
|
to a Qlg_Path_Name_T structure, while <strong>open()</strong> takes a pointer
|
||
|
|
to a character string.</p>
|
||
|
|
|
||
|
|
<p>Limited information on the <em>path</em> parameter is provided here. For
|
||
|
|
more information on the <em>path</em> parameter and for a discussion of other
|
||
|
|
parameters, authorities required, usage notes, return values, and related
|
||
|
|
information, see <a href="open.htm">open()</a>--Open a File.</p>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Parameters</h3>
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><strong><em>path</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) A pointer to a Qlg_Path_Name_T structure that contains a path name
|
||
|
|
or a pointer to a path name of the file to be opened. 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="open.htm">open()</a>--Open a File<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="creatu.htm">QlgCreat()</a>--Create or Rewrite File (using
|
||
|
|
NLS-enabled path name)<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="open64u.htm">QlgOpen64()</a>--Open File (large file enabled and
|
||
|
|
using NLS-enabled path name)<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="statu.htm">QlgStat()</a>--Get File Information (using
|
||
|
|
NLS-enabled path name)</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 creates and opens an output file for exclusive access.
|
||
|
|
This program was stored in a source file with CCSID 37, so the constant string
|
||
|
|
"newfile" will be compiled in CCSID 37. Therefore, the language and country or
|
||
|
|
region specified are United States English, and the CCSID specified is 37.</p>
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <Qp0lstdi.h>
|
||
|
|
|
||
|
|
main()
|
||
|
|
{
|
||
|
|
int fildes;
|
||
|
|
|
||
|
|
const char US_const[3]= "US";
|
||
|
|
const char Language_const[4]="ENU";
|
||
|
|
|
||
|
|
struct pnstruct
|
||
|
|
{
|
||
|
|
Qlg_Path_Name_T qlg_struct;
|
||
|
|
char pn[7];
|
||
|
|
};
|
||
|
|
struct pnstruct pns;
|
||
|
|
struct pnstruct *pns_ptr = NULL;
|
||
|
|
|
||
|
|
char fn[]="newfile";
|
||
|
|
|
||
|
|
memset((void*)&pns, 0x00, sizeof(struct pnstruct));
|
||
|
|
pns.qlg_struct.CCSID = 37;
|
||
|
|
memcpy(pns.qlg_struct.Country_ID,US_const,2);
|
||
|
|
memcpy(pns.qlg_struct.Language_ID,Language_const,3);;
|
||
|
|
pns.qlg_struct.Path_Type = 0;
|
||
|
|
pns.qlg_struct.Path_Length = sizeof(fn) - 1;
|
||
|
|
pns.qlg_struct.Path_Name_Delimiter[0] = '/';
|
||
|
|
memcpy(pns.pn,fn,sizeof(fn)-1);
|
||
|
|
|
||
|
|
pns_ptr = &pns;
|
||
|
|
if(fildes = QlgOpen((Qlg_Path_Name_T *)pns_ptr,
|
||
|
|
O_WRONLY|O_CREAT|O_EXCL, S_IRWXU)) == -1)
|
||
|
|
{
|
||
|
|
perror("QlgOpen() error");
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
</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>
|
||
|
|
|