2 .\" Copyright (c) 1983, 1991 The Regents of the University of California.
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
13 .\" 3. All advertising materials mentioning features or use of this software
14 .\" must display the following acknowledgement:
15 .\" This product includes software developed by the University of
16 .\" California, Berkeley and its contributors.
17 .\" 4. Neither the name of the University nor the names of its contributors
18 .\" may be used to endorse or promote products derived from this software
19 .\" without specific prior written permission.
21 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 .\" $Id: socket.2,v 1.4 1999/05/13 11:33:42 freitag Exp $
35 .\" Modified 1993-07-24 by Rik Faith <faith@cs.unc.edu>
36 .\" Modified 1996-10-22 by Eric S. Raymond <esr@thyrsus.com>
37 .\" Modified 1998, 1999 by Andi Kleen <ak@muc.de>
38 .\" Modified 2002-07-17 by Michael Kerrisk <mtk.manpages@gmail.com>
39 .\" Modified 2004-06-17 by Michael Kerrisk <mtk.manpages@gmail.com>
41 .\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
42 .\" all rights reserved.
43 .\" Translated Mon Mar 3 23:40:11 JST 1997
44 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
45 .\" Modified Sun Aug 15 23:52:28 JST 1999
46 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
47 .\" Updated Mon Jan 13 JST 2000 by Kentaro Shirakata <argrath@ub32.org>
48 .\" Updated Mon Oct 15 JST 2001 by Kentaro Shirakata <argrath@ub32.org>
49 .\" Updated Mon Oct 26 JST 2002 by Kentaro Shirakata <argrath@ub32.org>
50 .\" Updated 2008-11-09, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v3.13
52 .\"WORD: endpoint üÅÀ
53 .\"WORD: descriptor ¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼
54 .\"WORD: link layer ¥ê¥ó¥¯ÁØ
55 .\"WORD: byte stream ¥Ð¥¤¥È¡¦¥¹¥È¥ê¡¼¥à
56 .\"WORD: out-of-band ÂÓ°è³°
57 .\"WORD: sequenced ½ç½øÀ¤Î¤¢¤ë
58 .\"WORD: reliable ¿®ÍêÀ¤Î¤¢¤ë
59 .\"WORD: two-way ÁÐÊý¸þ¤Î
60 .\"WORD: datagram ¥Ç¡¼¥¿¥°¥é¥à
61 .\"WORD: implement ¼ÂÁõ
62 .\"WORD: super-user ¥¹¡¼¥Ñ¡¼¡¦¥æ¡¼¥¶¡¼
63 .\"WORD: full-duplex Á´Æó½Å
64 .\"WORD: non-blocking I/O ÈóÄä»ß I/O
65 .\"WORD: asynchronous ÈóƱ´ü
67 .TH SOCKET 2 2009-01-19 "Linux" "Linux Programmer's Manual"
69 socket \- ÄÌ¿®¤Î¤¿¤á¤ÎüÅÀ(endpoint)¤òºîÀ®¤¹¤ë
71 .BR "#include <sys/types.h>" " /* ¡ÖÃí°Õ¡×»²¾È */"
73 .B #include <sys/socket.h>
75 .BI "int socket(int " domain ", int " type ", int " protocol );
78 ¤ÏÄÌ¿®¤Î¤¿¤á¤ÎüÅÀ(endpoint)¤òºîÀ®¤·¡¢¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼(descriptor)¤òÊÖ¤¹¡£
81 °ú¿ô¤ÏÄÌ¿®¤ò¹Ô¤Ê¤¦¥É¥á¥¤¥ó¤ò»ØÄꤹ¤ë; ¤³¤ì¤Ï¤É¤Î
82 ¥×¥í¥È¥³¥ë¡¦¥Õ¥¡¥ß¥ê(protocol family)¤òÄÌ¿®¤Ë»ÈÍѤ¹¤ë¤«¤ò»ØÄꤹ¤ë¡£
86 ¸½ºß¡¢Íý²ò¤Ç¤¤ë¥Õ¥©¡¼¥Þ¥Ã¥È¤Ï°Ê²¼¤ÎÄ̤ꡣ
92 .BR AF_UNIX ", " AF_LOCAL
100 T}:IPv4 ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¡¦¥×¥í¥È¥³¥ë:T{
105 T}:IPv6 ¥¤¥ó¥¿¡¼¥Í¥Ã¥È¡¦¥×¥í¥È¥³¥ë:T{
110 T}:IPX \- Novell ¥×¥í¥È¥³¥ë:
114 ¥«¡¼¥Í¥ë¡¦¥æ¡¼¥¶¡¦¥Ç¥Ð¥¤¥¹
120 T}:ITU-T X.25 / ISO-8208 ¥×¥í¥È¥³¥ë:T{
126 ¥¢¥Þ¥Á¥å¥¢ÌµÀþ AX.25 ¥×¥í¥È¥³¥ë
130 T}:À¸¤Î ATM PVC ¤Ë¥¢¥¯¥»¥¹¤¹¤ë:
139 Äã¥ì¥Ù¥ë¤Î¥Ñ¥±¥Ã¥È¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹
147 ¤Ç»ØÄꤵ¤ì¤ë·¿¤ò»ý¤Á¡¢¤½¤ì¤ÏÄÌ¿®Êý¼°(semantics)¤ò»ØÄꤹ¤ë¡£
148 ÄêµÁ¤µ¤ì¤Æ¤¤¤ë·¿¤Ï¸½ºß°Ê²¼¤ÎÄ̤ꡣ
151 ½ç½øÀ¤È¿®ÍêÀ¤¬¤¢¤ê¡¢ÁÐÊý¸þ¤Î¡¢Àܳ¤µ¤ì¤¿
152 ¥Ð¥¤¥È¡¦¥¹¥È¥ê¡¼¥à(byte stream)¤òÄ󶡤¹¤ë¡£
153 ÂÓ°è³°(out-of-band)¥Ç¡¼¥¿Å¾Á÷¥á¥«¥Ë¥º¥à¤â¥µ¥Ý¡¼¥È¤µ¤ì¤ë¡£
156 ¥Ç¡¼¥¿¥°¥é¥à(Àܳ¡¢¿®ÍêÀ̵¤·¡¢¸ÇÄêºÇÂçĹ¥á¥Ã¥»¡¼¥¸)
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165 À¸¤Î¥Í¥Ã¥È¥ï¡¼¥¯¡¦¥×¥í¥È¥³¥ë¤Ø¤Î¥¢¥¯¥»¥¹¤òÄ󶡤¹¤ë¡£
168 ¿®ÍêÀ¤Ï¤¢¤ë¤¬¡¢½ç½ø¤ÏÊݾڤ·¤Ê¤¤¥Ç¡¼¥¿¥°¥é¥àÁؤòÄ󶡤¹¤ë¡£
171 Çѻߤµ¤ì¤Æ¤ª¤ê¿·¤·¤¤¥×¥í¥°¥é¥à¤Ç»ÈÍѤ·¤Æ¤Ï¤¤¤±¤Ê¤¤¡£
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180 ¤Ë¤Ï¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
182 Linux 2.6.27 °Ê¹ß¤Ç¤Ï¡¢
184 °ú¿ô¤ÏÆó¤ÄÌܤÎÌÜŪ¤Ë¤â»ÈÍѤµ¤ì¤ë¡£
185 ¥½¥±¥Ã¥È¤Î·¿¤ò»ØÄꤹ¤ë¤Î¤Ë²Ã¤¨¤Æ¡¢
186 °Ê²¼¤ÎÃͤΤ¤¤¯¤Ä¤«¤ò¥Ó¥Ã¥Èñ°Ì¤ÎÏÀÍýÏ (OR) ¤Ç»ØÄꤹ¤ë¤³¤È¤Ç¡¢
188 ¤Î¿¶Éñ¤¤¤òÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
191 ¿·¤·¤¯À¸À®¤µ¤ì¤ë¥ª¡¼¥×¥ó¥Õ¥¡¥¤¥ëµ½Ò (open file description) ¤Î
193 ¥Õ¥¡¥¤¥ë¥¹¥Æ¡¼¥¿¥¹¥Õ¥é¥°¤ò¥»¥Ã¥È¤¹¤ë¡£
194 ¤³¤Î¥Õ¥é¥°¤ò»È¤¦¤³¤È¤Ç¡¢
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201 ¿·¤·¤¤¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤ËÂФ·¤Æ
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259 ¤¬Í¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤ë¾ì¹ç¡¢¥×¥í¥È¥³¥ëÆȼ«¤ÎÊýË¡¤ÇÀܳ¤ÎÁê¼ê¦¤¬¤Þ¤À
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284 ¤³¤Î¥³¡¼¥ë¤Ï¼¡¤Î¥Ç¡¼¥¿¥°¥é¥à¤òÁ÷¿®¼Ô¤Î¥¢¥É¥ì¥¹¤È°ì½ï¤ËÊÖ¤¹¡£
287 ¤Ï¸Å¤¤¥½¥±¥Ã¥È·¿¤Ç¡¢À¸(raw)¤Î¥Ñ¥±¥Ã¥È¤ò¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤«¤é
288 ľÀܼõ¿®¤¹¤ë¤¿¤á¤Î¤â¤Î¤Ç¤¢¤ë¡£
296 Áàºî¤ò»È¤Ã¤Æ¡¢¥·¥°¥Ê¥ë
300 ¤ò¼õ¤±¤È¤ë¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤ò»ØÄê¤Ç¤¤ë¡£
302 ¥·¥°¥Ê¥ë¤ÏÂÓ°è³°¥Ç¡¼¥¿¤¬ÅþÃ夷¤¿»þ¤Ë¡¢
306 Àܳ¤¬Í½´ü¤»¤ºÀÚÃǤµ¤ì¤¿»þ¤ËÁ÷¤é¤ì¤ë¡£
309 Áàºî¤Ï¡¢I/O ¤ä I/O ¥¤¥Ù¥ó¥È¤ÎÈóƱ´ü (asynchronous) ÄÌÃΤò
311 ¤ò·Ðͳ¤Ç¼õ¤±¼è¤ë¥×¥í¥»¥¹¤ä¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤òÀßÄꤹ¤ë¤Î¤Ë¤â»ÈÍѤǤ¤ë¡£
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322 (Î㤨¤Ð¡¢IP ¤Î ICMP ¥á¥Ã¥»¡¼¥¸¤ò»ÈÍѤ·¤Æ)¤Ë¤Ï¡¢¥½¥±¥Ã¥È¤Î
323 ¥Ú¥ó¥Ç¥£¥ó¥°¡¦¥¨¥é¡¼¡¦¥Õ¥é¥°¤¬ÀßÄꤵ¤ì¤ë¡£¼¡¤Ë¤³¤Î¥½¥±¥Ã¥È¤òÁàºî¤·¤¿
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344 ¥¨¥é¡¼¤¬È¯À¸¤·¤¿¾ì¹ç¤Ï \-1 ¤òÊÖ¤·¡¢
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359 .\" Since Linux 2.6.27
361 ¤Ë̵¸ú¤Ê¥Õ¥é¥°¤¬»ØÄꤵ¤ì¤Æ¤¤¤ë¡£
364 ¥×¥í¥»¥¹¤Î¥Õ¥¡¥¤¥ë¥Æ¡¼¥Ö¥ë¤¬°î¤ì¤Æ¤¤¤ë¡£
367 ¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤ÎÁí¿ô¤¬¥·¥¹¥Æ¥à¾å¸Â¤Ë㤷¤Æ¤¤¤ë¡£
369 .BR ENOBUFS " ¤Þ¤¿¤Ï " ENOMEM
370 ½½Ê¬¤Ê¥á¥â¥ê¤¬¤Ê¤¤¡£½½Ê¬¤Ê»ñ¸»¤¬²òÊü¤µ¤ì¤ë¤Þ¤Ç¤Ï¥½¥±¥Ã¥È¤ò
371 ºîÀ®¤¹¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¡£
374 ¤³¤Î¥É¥á¥¤¥ó¤Ç¤Ï»ØÄꤵ¤ì¤¿¥×¥í¥È¥³¥ë¤Þ¤¿¤Ï¥×¥í¥È¥³¥ë¡¦¥¿¥¤¥×¤¬
375 ¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¡£
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379 4.4BSD, POSIX.1-2001.
384 ¤Ï Linux ¸ÇͤǤ¢¤ë¡£
387 ¤Ï 4.2BSD ¤ÇÅо줷¤¿¡£°ìÈ̤ˡ¢(System V ¤ÎÊѼï¤ò´Þ¤á¤Æ)
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393 ¤Î¥¤¥ó¥¯¥ë¡¼¥É¤Ïɬ¿Ü¤È¤µ¤ì¤Æ¤ª¤é¤º¡¢
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395 ¤·¤«¤·¡¢Îò»ËŪ¤Ë¤Ï¡¢¤¤¤¯¤Ä¤«¤Î¼ÂÁõ (BSD ·Ï) ¤Ç¤³¤Î¥Ø¥Ã¥À¥Õ¥¡¥¤¥ë¤¬
396 ɬÍפǤ¢¤ê¡¢°Ü¿¢À¤¬É¬Íפʥ¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ç¤Ï¤³¤Î¥Õ¥¡¥¤¥ë¤ò
397 ¥¤¥ó¥¯¥ë¡¼¥É¤¹¤ë¤Î¤¬¸ÌÀ¤Ç¤¢¤í¤¦¡£
399 4.x BSD ¤Ë¤ª¤¤¤ÆÄê¿ô¤ò»ÈÍѤ¹¤ë¾ì¹ç¡¢¥×¥í¥È¥³¥ë¡¦¥Õ¥¡¥ß¥ê¡¼¤Ë¤Ï
402 Åù¤ò»ÈÍѤ·¤Æ¤¤¤ë¡£°ìÊý¤Ç¥¢¥É¥ì¥¹¡¦¥Õ¥¡¥ß¥ê¡¼¤Ë¤Ï
404 Åù¤¬»ÈÍѤµ¤ì¤Æ¤¤¤ë¡£¤·¤«¤·¤Ê¤¬¤é BSD ¤Î¥Þ¥Ë¥å¥¢¥ë¤Ç¤Ï
405 ¡Ö°ìÈ̤˥ץí¥È¥³¥ë¡¦¥Õ¥¡¥ß¥ê¡¼¤Ï¥¢¥É¥ì¥¹¡¦¥Õ¥¡¥ß¥ê¡¼¤ÈƱ¤¸¤â¤Î¤Ç¤¢¤ë¡£¡×
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436 \(lqAn Introductory 4.3BSD Interprocess Communication Tutorial\(rq
438 .I UNIX Programmer's Supplementary Documents Volume 1
441 \(lqBSD Interprocess Communication Tutorial\(rq
443 .I UNIX Programmer's Supplementary Documents Volume 1