81 lines
3.2 KiB
HTML
81 lines
3.2 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>write - Debugging with GDB</title>
|
|
<meta http-equiv="Content-Type" content="text/html">
|
|
<meta name="description" content="Debugging with GDB">
|
|
<meta name="generator" content="makeinfo 4.13">
|
|
<link title="Top" rel="start" href="index.html#Top">
|
|
<link rel="up" href="List-of-Supported-Calls.html#List-of-Supported-Calls" title="List of Supported Calls">
|
|
<link rel="prev" href="read.html#read" title="read">
|
|
<link rel="next" href="lseek.html#lseek" title="lseek">
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
|
<!--
|
|
Copyright (C) 1988-2019 Free Software Foundation, Inc.
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with the
|
|
Invariant Sections being ``Free Software'' and ``Free Software Needs
|
|
Free Documentation'', with the Front-Cover Texts being ``A GNU Manual,''
|
|
and with the Back-Cover Texts as in (a) below.
|
|
|
|
(a) The FSF's Back-Cover Text is: ``You are free to copy and modify
|
|
this GNU Manual. Buying copies from GNU Press supports the FSF in
|
|
developing GNU and promoting software freedom.''
|
|
-->
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
|
<style type="text/css"><!--
|
|
pre.display { font-family:inherit }
|
|
pre.format { font-family:inherit }
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
|
pre.smallexample { font-size:smaller }
|
|
pre.smalllisp { font-size:smaller }
|
|
span.sc { font-variant:small-caps }
|
|
span.roman { font-family:serif; font-weight:normal; }
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
<div class="node">
|
|
<a name="write"></a>
|
|
<p>
|
|
Next: <a rel="next" accesskey="n" href="lseek.html#lseek">lseek</a>,
|
|
Previous: <a rel="previous" accesskey="p" href="read.html#read">read</a>,
|
|
Up: <a rel="up" accesskey="u" href="List-of-Supported-Calls.html#List-of-Supported-Calls">List of Supported Calls</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h5 class="unnumberedsubsubsec">write</h5>
|
|
|
|
<p><a name="index-write_002c-file_002di_002fo-system-call-3607"></a>
|
|
<dl>
|
|
<dt>Synopsis:<dd>
|
|
<pre class="smallexample"> int write(int fd, const void *buf, unsigned int count);
|
|
</pre>
|
|
<br><dt>Request:<dd>‘<samp><span class="samp">Fwrite,</span><var>fd</var><span class="samp">,</span><var>bufptr</var><span class="samp">,</span><var>count</var></samp>’
|
|
|
|
<br><dt>Return value:<dd>On success, the number of bytes written are returned.
|
|
Zero indicates nothing was written. On error, -1
|
|
is returned.
|
|
|
|
<br><dt>Errors:<dd>
|
|
<dl>
|
|
<dt><code>EBADF</code><dd><var>fd</var> is not a valid file descriptor or is not open for
|
|
writing.
|
|
|
|
<br><dt><code>EFAULT</code><dd><var>bufptr</var> is an invalid pointer value.
|
|
|
|
<br><dt><code>EFBIG</code><dd>An attempt was made to write a file that exceeds the
|
|
host-specific maximum file size allowed.
|
|
|
|
<br><dt><code>ENOSPC</code><dd>No space on device to write the data.
|
|
|
|
<br><dt><code>EINTR</code><dd>The call was interrupted by the user.
|
|
</dl>
|
|
|
|
</dl>
|
|
|
|
</body></html>
|
|
|