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Linux系统调用

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<TITLE>Syscall specifications of Linux - getpeername</TITLE>
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<H2><A NAME="SEC47" HREF="syscalls_toc.html#SEC47" tppabs="http://personal.xfol.com/%7erezaie/syscall/syscalls_toc.html#SEC47">getpeername</A></H2>
<P>
<H3>SYNOPSIS</H3>
<P>
<CODE>int  getpeername(int <VAR>s</VAR>, struct sockaddr *<VAR>name</VAR>, int
*<VAR>namelen</VAR>);</CODE>
<P>
<H3>PARAMETERS</H3>
<P>
<VAR>s</VAR>: [in] the socket.
<P>
<VAR>name</VAR>: [out] points to the buffer where to store the name.
<P>
<VAR>namelen</VAR>: [in out] the maximum length (in bytes) of <VAR>name</VAR>. 
<P>
<H3>DESCRIPTION</H3>
<P>
Returns the name of the peer machine connected to the remote end of a
socket. If the buffer is too small, the name is truncated.
<P>
<H3>RETURN VALUE</H3>
<P>
On success zero is returned. On error, -1 is returned and <CODE>errno</CODE> is
set to one of the following values:
<P>
<UL>
<LI><CODE>EBADF</CODE>, <CODE>ENOSOCK</CODE>, <CODE>ENOTCONN</CODE>, <CODE>ENOBUFS</CODE> and
<CODE>EFAULT</CODE>.
</UL>
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