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124 lines
4.2 KiB
HTML
124 lines
4.2 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>write (Debugging with GDB)</title>
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<meta name="description" content="write (Debugging with GDB)">
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<meta name="keywords" content="write (Debugging with GDB)">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="List-of-Supported-Calls.html#List-of-Supported-Calls" rel="up" title="List of Supported Calls">
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</head>
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<body lang="en">
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<a name="write"></a>
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<div class="header">
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<p>
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Next: <a href="lseek.html#lseek" accesskey="n" rel="next">lseek</a>, Previous: <a href="read.html#read" accesskey="p" rel="prev">read</a>, Up: <a href="List-of-Supported-Calls.html#List-of-Supported-Calls" accesskey="u" rel="up">List of Supported Calls</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="write-1"></a>
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<h4 class="unnumberedsubsubsec">write</h4>
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<a name="index-write_002c-file_002di_002fo-system-call"></a>
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<dl compact="compact">
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<dt>Synopsis:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">int write(int fd, const void *buf, unsigned int count);
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</pre></div>
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</dd>
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<dt>Request:</dt>
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<dd><p>‘<samp>Fwrite,<var>fd</var>,<var>bufptr</var>,<var>count</var></samp>’
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</p>
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</dd>
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<dt>Return value:</dt>
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<dd><p>On success, the number of bytes written are returned.
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Zero indicates nothing was written. On error, -1
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is returned.
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</p>
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</dd>
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<dt>Errors:</dt>
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<dd>
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<dl compact="compact">
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<dt><code>EBADF</code></dt>
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<dd><p><var>fd</var> is not a valid file descriptor or is not open for
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writing.
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</p>
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</dd>
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<dt><code>EFAULT</code></dt>
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<dd><p><var>bufptr</var> is an invalid pointer value.
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</p>
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</dd>
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<dt><code>EFBIG</code></dt>
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<dd><p>An attempt was made to write a file that exceeds the
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host-specific maximum file size allowed.
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</p>
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</dd>
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<dt><code>ENOSPC</code></dt>
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<dd><p>No space on device to write the data.
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</p>
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</dd>
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<dt><code>EINTR</code></dt>
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<dd><p>The call was interrupted by the user.
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</p></dd>
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</dl>
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</dd>
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</dl>
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</body>
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</html>
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