fchdir.html
来自「IEEE 1003.1-2003, Single Unix Specificat」· HTML 代码 · 共 150 行
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<!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) 2001-2003 The Open Group, All Rights Reserved --><title>fchdir</title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="fchdir"></a> <a name="tag_03_137"></a><!-- fchdir --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_03_137_01"></a>NAME</h4><blockquote>fchdir - change working directory</blockquote><h4><a name="tag_03_137_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><div class="box"><code><tt><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> #include <<a href="../basedefs/unistd.h.html">unistd.h</a>><br><br> int fchdir(int</tt> <i>fildes</i><tt>); <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></code></div><tt><br></tt></blockquote><h4><a name="tag_03_137_03"></a>DESCRIPTION</h4><blockquote><p>The <i>fchdir</i>() function shall be equivalent to <a href="../functions/chdir.html"><i>chdir</i>()</a> except that thedirectory that is to be the new current working directory is specified by the file descriptor <i>fildes</i>.</p><p>A conforming application can obtain a file descriptor for a file of type directory using <a href="../functions/open.html"><i>open</i>()</a>, provided that the file status flags and access modes do not contain O_WRONLY orO_RDWR.</p></blockquote><h4><a name="tag_03_137_04"></a>RETURN VALUE</h4><blockquote><p>Upon successful completion, <i>fchdir</i>() shall return 0. Otherwise, it shall return -1 and set <i>errno</i> to indicate theerror. On failure the current working directory shall remain unchanged.</p></blockquote><h4><a name="tag_03_137_05"></a>ERRORS</h4><blockquote><p>The <i>fchdir</i>() function shall fail if:</p><dl compact><dt>[EACCES]</dt><dd>Search permission is denied for the directory referenced by <i>fildes</i>.</dd><dt>[EBADF]</dt><dd>The <i>fildes</i> argument is not an open file descriptor.</dd><dt>[ENOTDIR]</dt><dd>The open file descriptor <i>fildes</i> does not refer to a directory.</dd></dl><p>The <i>fchdir</i>() may fail if:</p><dl compact><dt>[EINTR]</dt><dd>A signal was caught during the execution of <i>fchdir</i>().</dd><dt>[EIO]</dt><dd>An I/O error occurred while reading from or writing to the file system.</dd></dl></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_03_137_06"></a>EXAMPLES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_137_07"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_137_08"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_137_09"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_137_10"></a>SEE ALSO</h4><blockquote><p><a href="chdir.html"><i>chdir</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/unistd.h.html"><i><unistd.h></i></a></p></blockquote><h4><a name="tag_03_137_11"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 4, Version 2.</p></blockquote><h4><a name="tag_03_137_12"></a>Issue 5</h4><blockquote><p>Moved from X/OPEN UNIX extension to BASE.</p></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>⌨️ 快捷键说明
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