588 lines
18 KiB
HTML
588 lines
18 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
<html>
|
|
<head>
|
|
<meta name="generator" content="HTML Tidy, see www.w3.org">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 -->
|
|
<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
|
|
<title>fpathconf</title>
|
|
</head>
|
|
<body bgcolor="white">
|
|
<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
|
|
</script>
|
|
|
|
<basefont size="3"> <a name="fpathconf"></a> <a name="tag_03_178"></a><!-- fpathconf -->
|
|
<!--header start-->
|
|
<center><font size="2">The Open Group Base Specifications Issue 6<br>
|
|
IEEE Std 1003.1-2001<br>
|
|
Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
|
|
|
|
<!--header end-->
|
|
<hr size="2" noshade>
|
|
<h4><a name="tag_03_178_01"></a>NAME</h4>
|
|
|
|
<blockquote>fpathconf, pathconf - get configurable pathname variables</blockquote>
|
|
|
|
<h4><a name="tag_03_178_02"></a>SYNOPSIS</h4>
|
|
|
|
<blockquote class="synopsis">
|
|
<p><code><tt>#include <<a href="../basedefs/unistd.h.html">unistd.h</a>><br>
|
|
<br>
|
|
long fpathconf(int</tt> <i>fildes</i><tt>, int</tt> <i>name</i><tt>);<br>
|
|
long pathconf(const char *</tt><i>path</i><tt>, int</tt> <i>name</i><tt>);<br>
|
|
</tt></code></p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_03"></a>DESCRIPTION</h4>
|
|
|
|
<blockquote>
|
|
<p>The <i>fpathconf</i>() and <i>pathconf</i>() functions shall determine the current value of a configurable limit or option
|
|
(<i>variable</i>) that is associated with a file or directory.</p>
|
|
|
|
<p>For <i>pathconf</i>(), the <i>path</i> argument points to the pathname of a file or directory.</p>
|
|
|
|
<p>For <i>fpathconf</i>(), the <i>fildes</i> argument is an open file descriptor.</p>
|
|
|
|
<p>The <i>name</i> argument represents the variable to be queried relative to that file or directory. Implementations shall support
|
|
all of the variables listed in the following table and may support others. The variables in the following table come from <a href=
|
|
"../basedefs/limits.h.html"><i><limits.h></i></a> or <a href="../basedefs/unistd.h.html"><i><unistd.h></i></a> and the
|
|
symbolic constants, defined in <a href="../basedefs/unistd.h.html"><i><unistd.h></i></a>, are the corresponding values used
|
|
for <i>name</i>. Support for some pathname configuration variables is dependent on implementation options (see shading and margin
|
|
codes in the table below). Where an implementation option is not supported, the variable need not be supported.</p>
|
|
|
|
<center>
|
|
<table border="1" cellpadding="3" align="center">
|
|
<tr valign="top">
|
|
<th align="center">
|
|
<p class="tent"><b>Variable</b></p>
|
|
</th>
|
|
<th align="center">
|
|
<p class="tent"><b>Value of <i>name</i></b></p>
|
|
</th>
|
|
<th align="center">
|
|
<p class="tent"><b>Requirements</b></p>
|
|
</th>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{FILESIZEBITS}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_FILESIZEBITS</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">3,4</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{LINK_MAX}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_LINK_MAX</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">1</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{MAX_CANON}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_MAX_CANON</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">2</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{MAX_INPUT}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_MAX_INPUT</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">2</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{NAME_MAX}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_NAME_MAX</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">3,4</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{PATH_MAX}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_PATH_MAX</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">4,5</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{PIPE_BUF}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_PIPE_BUF</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">6</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent"><sup>[<a href="javascript:open_code('ADV')">ADV</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
|
|
border="0"> {POSIX_ALLOC_SIZE_MIN}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_ALLOC_SIZE_MIN<img src="../images/opt-end.gif" border="0"></p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent"> </p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent"><sup>[<a href="javascript:open_code('ADV')">ADV</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
|
|
border="0"> {POSIX_REC_INCR_XFER_SIZE}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_REC_INCR_XFER_SIZE<img src="../images/opt-end.gif" border="0"></p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent"> </p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent"><sup>[<a href="javascript:open_code('ADV')">ADV</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
|
|
border="0"> {POSIX_REC_MAX_XFER_SIZE}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_REC_MAX_XFER_SIZE<img src="../images/opt-end.gif" border="0"></p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent"> </p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent"><sup>[<a href="javascript:open_code('ADV')">ADV</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
|
|
border="0"> {POSIX_REC_MIN_XFER_SIZE}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_REC_MIN_XFER_SIZE<img src="../images/opt-end.gif" border="0"></p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent"> </p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent"><sup>[<a href="javascript:open_code('ADV')">ADV</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
|
|
border="0"> {POSIX_REC_XFER_ALIGN}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_REC_XFER_ALIGN<img src="../images/opt-end.gif" border="0"></p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent"> </p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">{SYMLINK_MAX}</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_SYMLINK_MAX</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">4,9</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_CHOWN_RESTRICTED</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_CHOWN_RESTRICTED</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">7</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_NO_TRUNC</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_NO_TRUNC</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">3,4</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_VDISABLE</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_VDISABLE</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">2</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_ASYNC_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_ASYNC_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">8</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_PRIO_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_PRIO_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">8</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr valign="top">
|
|
<td align="left">
|
|
<p class="tent">_POSIX_SYNC_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">_PC_SYNC_IO</p>
|
|
</td>
|
|
<td align="left">
|
|
<p class="tent">8</p>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</center>
|
|
|
|
<h5><a name="tag_03_178_03_01"></a>Requirements</h5>
|
|
|
|
<ol>
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall apply to the directory itself.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> does not refer to a terminal file, it is unspecified whether an implementation supports an
|
|
association of the variable name with the specified file.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall apply to filenames within the directory.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> does not refer to a directory, it is unspecified whether an implementation supports an
|
|
association of the variable name with the specified file.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall be the maximum length of a relative pathname
|
|
when the specified directory is the working directory.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> refers to a FIFO, or <i>fildes</i> refers to a pipe or FIFO, the value returned shall apply to the referenced
|
|
object. If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall apply to any FIFO that exists or can be
|
|
created within the directory. If <i>path</i> or <i>fildes</i> refers to any other type of file, it is unspecified whether an
|
|
implementation supports an association of the variable name with the specified file.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall apply to any files, other than directories, that
|
|
exist or can be created within the directory.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, it is unspecified whether an implementation supports an association of
|
|
the variable name with the specified file.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>If <i>path</i> or <i>fildes</i> refers to a directory, the value returned shall be the maximum length of the string that a
|
|
symbolic link in that directory can contain.</p>
|
|
</li>
|
|
</ol>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_04"></a>RETURN VALUE</h4>
|
|
|
|
<blockquote>
|
|
<p>If <i>name</i> is an invalid value, both <i>pathconf</i>() and <i>fpathconf</i>() shall return -1 and set <i>errno</i> to
|
|
indicate the error.</p>
|
|
|
|
<p>If the variable corresponding to <i>name</i> has no limit for the <i>path</i> or file descriptor, both <i>pathconf</i>() and
|
|
<i>fpathconf</i>() shall return -1 without changing <i>errno</i>. If the implementation needs to use <i>path</i> to determine the
|
|
value of <i>name</i> and the implementation does not support the association of <i>name</i> with the file specified by <i>path</i>,
|
|
or if the process did not have appropriate privileges to query the file specified by <i>path</i>, or <i>path</i> does not exist,
|
|
<i>pathconf</i>() shall return -1 and set <i>errno</i> to indicate the error.</p>
|
|
|
|
<p>If the implementation needs to use <i>fildes</i> to determine the value of <i>name</i> and the implementation does not support
|
|
the association of <i>name</i> with the file specified by <i>fildes</i>, or if <i>fildes</i> is an invalid file descriptor,
|
|
<i>fpathconf</i>() shall return -1 and set <i>errno</i> to indicate the error.</p>
|
|
|
|
<p>Otherwise, <i>pathconf</i>() or <i>fpathconf</i>() shall return the current variable value for the file or directory without
|
|
changing <i>errno</i>. The value returned shall not be more restrictive than the corresponding value available to the application
|
|
when it was compiled with the implementation's <a href="../basedefs/limits.h.html"><i><limits.h></i></a> or <a href=
|
|
"../basedefs/unistd.h.html"><i><unistd.h></i></a>.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_05"></a>ERRORS</h4>
|
|
|
|
<blockquote>
|
|
<p>The <i>pathconf</i>() function shall fail if:</p>
|
|
|
|
<dl compact>
|
|
<dt>[EINVAL]</dt>
|
|
|
|
<dd>The value of <i>name</i> is not valid.</dd>
|
|
|
|
<dt>[ELOOP]</dt>
|
|
|
|
<dd>A loop exists in symbolic links encountered during resolution of the <i>path</i> argument.</dd>
|
|
</dl>
|
|
|
|
<p>The <i>pathconf</i>() function may fail if:</p>
|
|
|
|
<dl compact>
|
|
<dt>[EACCES]</dt>
|
|
|
|
<dd>Search permission is denied for a component of the path prefix.</dd>
|
|
|
|
<dt>[EINVAL]</dt>
|
|
|
|
<dd>The implementation does not support an association of the variable <i>name</i> with the specified file.</dd>
|
|
|
|
<dt>[ELOOP]</dt>
|
|
|
|
<dd>More than {SYMLOOP_MAX} symbolic links were encountered during resolution of the <i>path</i> argument.</dd>
|
|
|
|
<dt>[ENAMETOOLONG]</dt>
|
|
|
|
<dd>
|
|
The length of the <i>path</i> argument exceeds {PATH_MAX} or a pathname component is longer than {NAME_MAX}.</dd>
|
|
|
|
<dt>[ENAMETOOLONG]</dt>
|
|
|
|
<dd>
|
|
As a result of encountering a symbolic link in resolution of the <i>path</i> argument, the length of the substituted pathname
|
|
string exceeded {PATH_MAX}.</dd>
|
|
|
|
<dt>[ENOENT]</dt>
|
|
|
|
<dd>A component of <i>path</i> does not name an existing file or <i>path</i> is an empty string.</dd>
|
|
|
|
<dt>[ENOTDIR]</dt>
|
|
|
|
<dd>A component of the path prefix is not a directory.</dd>
|
|
</dl>
|
|
|
|
<p>The <i>fpathconf</i>() function shall fail if:</p>
|
|
|
|
<dl compact>
|
|
<dt>[EINVAL]</dt>
|
|
|
|
<dd>The value of <i>name</i> is not valid.</dd>
|
|
</dl>
|
|
|
|
<p>The <i>fpathconf</i>() function may fail if:</p>
|
|
|
|
<dl compact>
|
|
<dt>[EBADF]</dt>
|
|
|
|
<dd>The <i>fildes</i> argument is not a valid file descriptor.</dd>
|
|
|
|
<dt>[EINVAL]</dt>
|
|
|
|
<dd>The implementation does not support an association of the variable <i>name</i> with the specified file.</dd>
|
|
</dl>
|
|
</blockquote>
|
|
|
|
<hr>
|
|
<div class="box"><em>The following sections are informative.</em></div>
|
|
|
|
<h4><a name="tag_03_178_06"></a>EXAMPLES</h4>
|
|
|
|
<blockquote>
|
|
<p>None.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_07"></a>APPLICATION USAGE</h4>
|
|
|
|
<blockquote>
|
|
<p>None.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_08"></a>RATIONALE</h4>
|
|
|
|
<blockquote>
|
|
<p>The <i>pathconf</i>() function was proposed immediately after the <a href="../functions/sysconf.html"><i>sysconf</i>()</a>
|
|
function when it was realized that some configurable values may differ across file system, directory, or device boundaries.</p>
|
|
|
|
<p>For example, {NAME_MAX} frequently changes between System V and BSD-based file systems; System V uses a maximum of 14, BSD 255.
|
|
On an implementation that provides both types of file systems, an application would be forced to limit all pathname components to
|
|
14 bytes, as this would be the value specified in <a href="../basedefs/limits.h.html"><i><limits.h></i></a> on such a
|
|
system.</p>
|
|
|
|
<p>Therefore, various useful values can be queried on any pathname or file descriptor, assuming that the appropriate permissions
|
|
are in place.</p>
|
|
|
|
<p>The value returned for the variable {PATH_MAX} indicates the longest relative pathname that could be given if the specified
|
|
directory is the process' current working directory. A process may not always be able to generate a name that long and use it if a
|
|
subdirectory in the pathname crosses into a more restrictive file system.</p>
|
|
|
|
<p>The value returned for the variable _POSIX_CHOWN_RESTRICTED also applies to directories that do not have file systems mounted on
|
|
them. The value may change when crossing a mount point, so applications that need to know should check for each directory. (An even
|
|
easier check is to try the <a href="../functions/chown.html"><i>chown</i>()</a> function and look for an error in case it
|
|
happens.)</p>
|
|
|
|
<p>Unlike the values returned by <a href="../functions/sysconf.html"><i>sysconf</i>()</a>, the pathname-oriented variables are
|
|
potentially more volatile and are not guaranteed to remain constant throughout the process' lifetime. For example, in between two
|
|
calls to <i>pathconf</i>(), the file system in question may have been unmounted and remounted with different characteristics.</p>
|
|
|
|
<p>Also note that most of the errors are optional. If one of the variables always has the same value on an implementation, the
|
|
implementation need not look at <i>path</i> or <i>fildes</i> to return that value and is, therefore, not required to detect any of
|
|
the errors except the meaning of [EINVAL] that indicates that the value of <i>name</i> is not valid for that variable.</p>
|
|
|
|
<p>If the value of any of the limits is unspecified (logically infinite), they will not be defined in <a href=
|
|
"../basedefs/limits.h.html"><i><limits.h></i></a> and the <i>pathconf</i>() and <i>fpathconf</i>() functions return -1
|
|
without changing <i>errno</i>. This can be distinguished from the case of giving an unrecognized <i>name</i> argument because
|
|
<i>errno</i> is set to [EINVAL] in this case.</p>
|
|
|
|
<p>Since -1 is a valid return value for the <i>pathconf</i>() and <i>fpathconf</i>() functions, applications should set
|
|
<i>errno</i> to zero before calling them and check <i>errno</i> only if the return value is -1.</p>
|
|
|
|
<p>For the case of {SYMLINK_MAX}, since both <i>pathconf</i>() and <a href="../functions/open.html"><i>open</i>()</a> follow
|
|
symbolic links, there is no way that <i>path</i> or <i>fildes</i> could refer to a symbolic link.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_09"></a>FUTURE DIRECTIONS</h4>
|
|
|
|
<blockquote>
|
|
<p>None.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_10"></a>SEE ALSO</h4>
|
|
|
|
<blockquote>
|
|
<p><a href="confstr.html"><i>confstr</i>()</a> , <a href="sysconf.html"><i>sysconf</i>()</a> , the Base Definitions volume of
|
|
IEEE Std 1003.1-2001, <a href="../basedefs/limits.h.html"><i><limits.h></i></a>, <a href=
|
|
"../basedefs/unistd.h.html"><i><unistd.h></i></a>, the Shell and Utilities volume of IEEE Std 1003.1-2001</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_11"></a>CHANGE HISTORY</h4>
|
|
|
|
<blockquote>
|
|
<p>First released in Issue 3. Included for alignment with the POSIX.1-1988 standard.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_12"></a>Issue 5</h4>
|
|
|
|
<blockquote>
|
|
<p>The DESCRIPTION is updated for alignment with the POSIX Realtime Extension.</p>
|
|
|
|
<p>Large File Summit extensions are added.</p>
|
|
</blockquote>
|
|
|
|
<h4><a name="tag_03_178_13"></a>Issue 6</h4>
|
|
|
|
<blockquote>
|
|
<p>The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:</p>
|
|
|
|
<ul>
|
|
<li>
|
|
<p>The DESCRIPTION is updated to include {FILESIZEBITS}.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>The [ELOOP] mandatory error condition is added.</p>
|
|
</li>
|
|
|
|
<li>
|
|
<p>A second [ENAMETOOLONG] is added as an optional error condition.</p>
|
|
</li>
|
|
</ul>
|
|
|
|
<p>The following changes were made to align with the IEEE P1003.1a draft standard:</p>
|
|
|
|
<ul>
|
|
<li>
|
|
<p>The _PC_SYMLINK_MAX entry is added to the table in the DESCRIPTION.</p>
|
|
</li>
|
|
</ul>
|
|
|
|
<p>The following <i>pathconf</i>() variables and their associated names are added for alignment with
|
|
IEEE Std 1003.1d-1999:</p>
|
|
|
|
<blockquote>
|
|
<pre>
|
|
{POSIX_ALLOC_SIZE_MIN}
|
|
{POSIX_REC_INCR_XFER_SIZE}
|
|
{POSIX_REC_MAX_XFER_SIZE}
|
|
{POSIX_REC_MIN_XFER_SIZE}
|
|
{POSIX_REC_XFER_ALIGN}
|
|
</pre>
|
|
</blockquote>
|
|
</blockquote>
|
|
|
|
<div class="box"><em>End of informative text.</em></div>
|
|
|
|
<hr>
|
|
<hr size="2" noshade>
|
|
<center><font size="2"><!--footer start-->
|
|
UNIX ® is a registered Trademark of The Open Group.<br>
|
|
POSIX ® is a registered Trademark of The IEEE.<br>
|
|
[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href=
|
|
"../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>
|
|
]</font></center>
|
|
|
|
<!--footer end-->
|
|
<hr size="2" noshade>
|
|
</body>
|
|
</html>
|
|
|