1 .\" Copyright (c) 1983, 1991 The Regents of the University of California.
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32 .\" @(#)getpeername.2 6.5 (Berkeley) 3/10/91
34 .\" Modified Sat Jul 24 16:37:50 1993 by Rik Faith <faith@cs.unc.edu>
35 .\" Modified Thu Jul 30 14:37:50 1993 by Martin Schulze <joey@debian.org>
36 .\" Modified Sun Mar 28 21:26:46 1999 by Andries Brouwer <aeb@cwi.nl>
37 .\" Modified 17 Jul 2002, Michael Kerrisk <mtk.manpages@gmail.com>
38 .\" Added 'socket' to NAME, so that "man -k socket" will show this page.
40 .\" Japanese Version Copyright (c) 1997-1999 HANATAKA Shinya
41 .\" all rights reserved.
42 .\" Translated Sat Apr 3 14:53:19 JST 1999
43 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
44 .\" Updated Tue Nov 26 JST 2002 by Kentaro Shirakata <argrath@ub32.org>
50 .\"WORD: descriptor ディスクリプタ
53 .TH GETPEERNAME 2 2008-12-03 "Linux" "Linux Programmer's Manual"
55 getpeername \- 接続している相手ソケットの名前を取得する
57 .B #include <sys/socket.h>
59 .BI "int getpeername(int " sockfd ", struct sockaddr *" addr \
60 ", socklen_t *" addrlen );
71 が指している領域のサイズに初期化しておかなければならない。
74 には実際に返された名前のサイズが (バイト単位で) 格納される。
75 提供されたバッファが小さすぎた場合には、名前は切り詰められる。
77 渡されたバッファが小さ過ぎた場合は、返されるアドレスの末尾が切り詰められる。
80 には、呼び出し時に指定された値よりも大きな値が格納される。
82 成功した場合は 0 が返される。エラーの場合は \-1 が返され、
94 引き数の指しているメモリが有効なプロセスのアドレス空間の
102 この操作を行なうのに十分な資源がシステムに存在しない。
114 関数は 4.2BSD で登場した), POSIX.1-2001.
119 である (4.x BSD, libc4, libc5 では