doc/ja_JP.eucJP/man/man3/resolver.3

.\" Copyright (c) 1985, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"     @(#)resolver.3	8.1 (Berkeley) 6/4/93
.\"
.Dd June 4, 1993
.Dt RESOLVER 3
.Os BSD 4.3
.Sh ̾¾Î
.Nm res_query ,
.Nm res_search ,
.Nm res_mkquery ,
.Nm res_send ,
.Nm res_init ,
.Nm dn_comp ,
.Nm dn_expand
.Nd ¥ê¥¾¥ë¥Ð¥ë¡¼¥Á¥ó
.Sh ½ñ¼°
.Fd #include <sys/types.h>
.Fd #include <netinet/in.h>
.Fd #include <arpa/nameser.h>
.Fd #include <resolv.h>
.Ft int
.Fo res_query
.Fa "const char *dname"
.Fa "int class"
.Fa "int type"
.Fa "u_char *answer"
.Fa "int anslen"
.Fc
.Ft int
.Fo res_search
.Fa "const char *dname"
.Fa "int class"
.Fa "int type"
.Fa "u_char *answer"
.Fa "int anslen"
.Fc
.Ft int
.Fo res_mkquery
.Fa "int op"
.Fa "const char *dname"
.Fa "int class"
.Fa "int type"
.Fa "const u_char *data"
.Fa "int datalen"
.Fa "const u_char *newrr_in"
.Fa "u_char *buf"
.Fa "int buflen"
.Fc
.Ft int
.Fo res_send
.Fa "const u_char *msg"
.Fa "int msglen"
.Fa "u_char *answer"
.Fa "int anslen"
.Fc
.Ft int
.Fn res_init 
.Fo dn_comp
.Fa "const char *exp_dn"
.Fa "u_char *comp_dn"
.Fa "int length"
.Fa "u_char **dnptrs"
.Fa "u_char **lastdnptr"
.Fc
.Ft int
.Fo dn_expand
.Fa "const u_char *msg"
.Fa "const u_char *eomorig"
.Fa "const u_char *comp_dn"
.Fa "char *exp_dn"
.Fa "int length"
.Fc
.Sh ²òÀâ
¤³¤Î¥ë¡¼¥Á¥ó¤Ï¡¢¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥É¥á¥¤¥ó¥Í¡¼¥à¥µ¡¼¥Ð¤ò»ÈÍѤ·¡¢¥¯¥¨¥ê¤È
±þÅú¥á¥Ã¥»¡¼¥¸¤ÎºîÀ®¡¢Á÷¿®¡¢²ò¼á¤ò¹Ô¤Ê¤¤¤Þ¤¹¡£
.Pp
¥ê¥¾¥ë¥Ð¥ë¡¼¥Á¥ó¤¬»ÈÍѤ¹¤ë¥°¥í¡¼¥Ð¥ëÀßÄê¤È¾õÂ֤ξðÊó¤Ï¡¢¹½Â¤ÂÎ
.Em _res
¤ËÊݸ¤µ¤ì¤Þ¤¹¡£¤Û¤È¤ó¤É¤ÎÃͤϡ¢Å¬Àڤʥǥե©¥ë¥È¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤Î¤Ç̵»ë¤Ç
¤­¤Þ¤¹¡£  
.Em _res.options
¤ËÊݸ¤µ¤ì¤Æ¤¤¤ë¥ª¥×¥·¥ç¥ó¤Ï¡¢
.Pa resolv.h
¤Ç°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£¥ª¥×¥·¥ç¥ó¤Ï¡¢Í­¸ú¤Ê¥ª¥×¥·¥ç¥ó¤Î¥Ó¥Ã¥È
¥ï¥¤¥ºÏÀÍýϤò´Þ¤à¡¢Ã±½ã¤Ê¥Ó¥Ã¥È¥Þ¥¹¥¯¤È¤·¤ÆÊݸ¤µ¤ì¤Æ¤¤¤Þ¤¹¡£ 
.Bl -tag -width RES_DEFNAMES
.It Dv RES_INIT
½é´ü¥Í¡¼¥à¥µ¡¼¥Ð¥¢¥É¥ì¥¹¤È¥Ç¥Õ¥©¥ë¥È¥É¥á¥¤¥ó̾¤¬½é´ü²½¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¤Ï
¿¿¤Ç¤¹(
.Fn res_init
¤¬¸Æ¤Ó½Ð¤µ¤ì¤¿¾ì¹ç¤Ê¤É)¡£
.It Dv RES_DEBUG
¥Ç¥Ð¥Ã¥°¥á¥Ã¥»¡¼¥¸¤ò½ÐÎϤ·¤Þ¤¹¡£
.It Dv RES_AAONLY
¿®Íê¤Ç¤­¤ë±þÅú¤Î¤ß¤ò¼õ¤±Æþ¤ì¤Þ¤¹¡£¤³¤Î¥ª¥×¥·¥ç¥ó¤ò»ÈÍѤ·¤¿¾ì¹ç¤Ï¡¢¿®Íê
¤Ç¤­¤ë±þÅú¤«¥¨¥é¡¼¤¬¸«¤Ä¤«¤ë¤Þ¤Ç 
.Fn res_send
¤ò³¤±¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£¸½ºß¤Î¤È¤³¤í¡¢¤³¤ì¤Ï¼Â¸½¤µ¤ì¤Æ¤¤¤Þ¤»¤ó¡£
.It Dv RES_USEVC     UDP
¥Ç¡¼¥¿¥°¥é¥à¤ÎÂå¤ï¤ê¤Ë
.Tn TCP
Àܳ¤ò¥¯¥¨¥ê¤Ë»ÈÍѤ·¤Þ¤¹¡£
.It DV RES_STAYOPEN
.Dv RES_USEVC
¤È¤È¤â¤Ë»ÈÍѤ·¡¢¥¯¥¨¥ê´Ö¤Ç
.Tn TCP
Àܳ¤ò³«¤¤¤¿¤Þ¤Þ¤ËÊݤÁ¤Þ¤¹¡£Â¿¤¯¤Î¥¯¥¨¥ê¤òÄê´üŪ¤Ë¹Ô¤Ê¤¦¥×¥í¥°¥é¥à¤Î¤ß
¤ÇÊØÍø¤Ç¤¹¡£
.Tn UDP
¤ÏÄ̾ï¥â¡¼¥É¤Ç¤¢¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
.It Dv RES_IGNTC
¸½ºß¤Ï»ÈÍѤµ¤ì¤Þ¤»¤ó(TCP¤ÇºÆ»î¹Ô¤·¤Ê¤¤¤Ê¤É¡¢¥È¥é¥ó¥±¡¼¥·¥ç¥ó¥¨¥é¡¼¤ò̵
»ë)¡£
.It Dv RES_RECURSE
¥¯¥¨¥ê¤ÎÈ¿ÉüÍ×µá¥Ó¥Ã¥È¤òÀßÄꤷ¤Þ¤¹¡£¤³¤ì¤¬¥Ç¥Õ¥©¥ë¥È¤Ç¤¹¡£(
.Fn res_send
¤ÏÈ¿Éü¥¯¥¨¥ê¤ò¹Ô¤Ê¤ï¤º¡¢¥Í¡¼¥à¥µ¡¼¥Ð¤¬È¿Éü¤ò½èÍý¤¹¤ë¤³¤È¤ò´üÂÔ¤·¤Þ¤¹¡£)
.It Dv RES_DEFNAMES
ÀßÄꤹ¤ë¤È¡¢
.Fn res_search
¤¬¥·¥ó¥°¥ë¥³¥ó¥Ý¡¼¥Í¥ó¥È̾(¥É¥Ã¥È¤ò´Þ¤Þ¤Ê¤¤Ì¾Á°)¤Ë¥Ç¥Õ¥©¥ë¥È¤Î¥É¥á¥¤¥ó
̾¤òÄɲ乤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¥Ç¥Õ¥©¥ë¥È¤ÇÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤
¤Þ¤¹¡£
.It Dv RES_DNSRCH
¤³¤Î¥ª¥×¥·¥ç¥ó¤òÀßÄꤹ¤ë¤È¡¢
.Fn res_search
¤¬¡¢¸½ºß¤Î¥É¥á¥¤¥ó¤È¿Æ¥É¥á¥¤¥ó¤Ç¥Û¥¹¥È̾¤ò¸¡º÷¤¹¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£
.Xr hostname 7
¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£¤³¤ì¤Ï¡¢É¸½à¥Û¥¹¥È¸¡º÷¥ë¡¼¥Á¥ó
.Xr gethostbyname 3
¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤Þ¤¹¡£¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¥Ç¥Õ¥©¥ë¥È¤ÇÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£ 
.It Dv NOALIASES
¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¡¢
.Dq Ev HOSTALIASES
´Ä¶­ÊÑ¿ô¤¬À©¸æ¤¹¤ë¥æ¡¼¥¶¥ì¥Ù¥ë¥¨¥¤¥ê¥¢¥·¥ó¥°µ¡Ç½¤ò̵¸ú¤Ë¤·¤Þ¤¹¡£¥Í¥Ã¥È
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.El
.Pp
.Fn res_init
¥ë¡¼¥Á¥ó¤Ï¡¢ÀßÄê¥Õ¥¡¥¤¥ë¤òÆɤ߹þ¤ß(ÀßÄê¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤¹¤ë¾ì¹ç¡£
.Xr Resolver 5
»²¾È)¡¢¥Ç¥Õ¥©¥ë¥È¥É¥á¥¤¥ó̾¡¢¸¡º÷¥ê¥¹¥È¡¢¥í¡¼¥«¥ë¥Í¡¼¥à¥µ¡¼¥Ð¤Î¥¤¥ó¥¿¡¼
¥Í¥Ã¥È¥¢¥É¥ì¥¹¤òÆþ¼ê¤·¤Þ¤¹¡£¥µ¡¼¥Ð¤¬ÀßÄꤵ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¤Ï¡¢¥ê¥¾¥ë¥Ð¤ò
¼Â¹Ô¤·¤Æ¤¤¤ë¥Û¥¹¥È¤¬»î¤µ¤ì¤Þ¤¹¡£¸½ºß¤Î¥É¥á¥¤¥ó̾¤Ï¡¢ÀßÄê¥Õ¥¡¥¤¥ë¤Ç»ØÄê
¤µ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢¥Û¥¹¥È̾¤ÇÄêµÁ¤µ¤ì¤Þ¤¹¤¬¡¢´Ä¶­ÊÑ¿ô
.Ev LOCALDOMAIN
¤Ç¾å½ñ¤­¤µ¤ì¤ë¤³¤È¤¬¤¢¤ê¤Þ¤¹¡£¸¡º÷¥ê¥¹¥È¤ò¥×¥í¥»¥¹¤´¤È¤Ë¾å½ñ¤­¤¹¤ë¾ì¹ç
¤Ï¡¢¥Ö¥é¥ó¥¯¤Ç¶èÀÚ¤é¤ì¤¿Ê£¿ô¤Î¥È¡¼¥¯¥ó¤ò¤³¤Î´Ä¶­ÊÑ¿ô¤Ë´Þ¤á¤Þ¤¹¡£¤³¤ì¤Ï¡¢
ÀßÄê¥Õ¥¡¥¤¥ë¤Î 
.Em search
¥³¥Þ¥ó¥É¤Ë»÷¤Æ¤¤¤Þ¤¹¡£Ê̤δĶ­ÊÑ¿ô
.Dq Ev RES_OPTIONS
¤òÀßÄꤹ¤ì¤Ð¡¢ÆÃÄê¤ÎÆâÉô¥ê¥¾¥ë¥Ð¥ª¥×¥·¥ç¥ó¤ò¾å½ñ¤­¤Ç¤­¤Þ¤¹¡£ÆâÉô¥ê¥¾¥ë
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.Em _res
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.Em options
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.Dq Ev RES_OPTIONS
´Ä¶­ÊÑ¿ô¤Î¥·¥ó¥¿¥Ã¥¯¥¹¤Ë¤Ä¤¤¤Æ¤Ï¡¢
.Xr resolver 5
¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£Ä̾ï¤Î¾ì¹ç¡¢½é´ü²½¤Ï°Ê²¼¤Î¥ë¡¼¥Á¥ó¤ò½é¤á¤Æ¸Æ¤Ó½Ð¤·
¤¿¤È¤­¤Ë¼Â¹Ô¤µ¤ì¤Þ¤¹¡£
.Pp
.Fn res_query
´Ø¿ô¤Ï¡¢¥µ¡¼¥Ð¥¯¥¨¥ê¥á¥«¥Ë¥º¥à¤Î¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤òÄ󶡤¹¤ë¤â¤Î¤Ç¡¢¥¯¥¨¥ê
¤ÎºîÀ®¡¢ºîÀ®¤µ¤ì¤¿¥¯¥¨¥ê¤Î¥í¡¼¥«¥ë¥µ¡¼¥Ð¤Ø¤ÎÁ÷¿®¡¢¥ê¥¹¥Ý¥ó¥¹¤ÎÂÔµ¡¡¢±þ
Åú¤ÎͽÈ÷¥Á¥§¥Ã¥¯¤ò¹Ô¤Ê¤¤¤Þ¤¹¡£¥¯¥¨¥ê¤Ï¡¢»ØÄꤵ¤ì¤¿´°Á´¤ËŬ³Ê¤Ê¥É¥á¥¤¥ó
̾ 
.Fa dname
¤Ç¡¢»ØÄꤵ¤ì¤¿
.Fa type
¤È
.Fa class
¤Î¾ðÊó¤òÍ׵ᤷ¤Þ¤¹¡£±þÅú¥á¥Ã¥»¡¼¥¸¤Ï¡¢
.Fa answer
¥Ð¥Ã¥Õ¥¡¤Ë»Ä¤µ¤ì¡¢¸Æ¤Ó½Ð¤·Â¦¤¬»ØÄꤹ¤ë
.Fa anslen
¤ÎŤµ¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£
.Pp
.Fn res_search
¥ë¡¼¥Á¥ó¤Ï¡¢
.Fn res_query
¤ÈƱ¤¸¤è¤¦¤Ë¥¯¥¨¥ê¤ÎºîÀ®¤È¥ê¥¹¥Ý¥ó¥¹¤ÎÂÔµ¡¤ò¹Ô¤Ê¤¤¤Þ¤¹¤¬¡¢
.Dv RES_DEFNAMES
¤È
.Dv RES_DNSRCH
¥ª¥×¥·¥ç¥ó¤¬À©¸æ¤¹¤ë¥Ç¥Õ¥©¥ë¥È¤È¸¡º÷µ¬Â§¤â¼Â¸½¤·¤Þ¤¹¡£ºÇ½é¤ÎÌäÂ꤬¤Ê¤¤
±þÅú¤¬Ìᤵ¤ì¤Þ¤¹¡£
.Pp
»Ä¤ê¤Î¥ë¡¼¥Á¥ó¤Ï¡¢
.Fn res_query
¤¬»ÈÍѤ¹¤ëÄã¥ì¥Ù¥ë¥ë¡¼¥Á¥ó¤Ç¤¹¡£
.Fn res_mkquery
´Ø¿ô¤Ï¡¢É¸½à¥¯¥¨¥ê¥á¥Ã¥»¡¼¥¸¤òºîÀ®¤·¤Æ
.Fa buf
¤ËÇÛÃÖ¤·¡¢¥¯¥¨¥ê¤Î¥µ¥¤¥º¤òÌᤷ¤Þ¤¹¡£¥¯¥¨¥ê¤¬
.Fa buflen
¤è¤êŤ¤¾ì¹ç¤Ï \-1 ¤òÌᤷ¤Þ¤¹¡£¥¯¥¨¥ê¥¿¥¤¥×
.Fa op
¤Ï¡¢Ä̾ï¤Î¾ì¹ç
.Dv QUERY
¤Ç¤¹¤¬¡¢
.Aq Pa arpa/nameser.h
¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¥¯¥¨¥ê¥¿¥¤¥×¤Ë¤Ç¤­¤Þ¤¹¡£¥¯¥¨¥ê¤Î¥É¥á¥¤¥ó̾¤Ï
.Fa dname
¤Ç»ØÄꤷ¤Þ¤¹¡£
.Fa Newrr
¤Ï¸½ºß»ÈÍѤµ¤ì¤Æ¤¤¤Þ¤»¤ó¤¬¡¢¹¹¿·¥á¥Ã¥»¡¼¥¸¤òºîÀ®¤¹¤ë¤¿¤á¤Î¤â¤Î¤Ç¤¹¡£
.Pp
.Fn res_send
¥ë¡¼¥Á¥ó¤Ï¡¢»öÁ°¥Õ¥©¡¼¥Þ¥Ã¥ÈºÑ¤ß¥¯¥¨¥ê¤òÁ÷¿®¤·¡¢±þÅú¤òÌᤷ¤Þ¤¹¡£
.Dv RES_INIT
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.Fn res_init
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.Fn dn_comp
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.Fa exp_dn
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.Fa comp_dn
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.Fa comp_dn
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.Fa length
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.Fa dnptrs
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.Dv NULL
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.Fa lastdnptr
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.Fn dn_comp
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.Dv NULL
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.Pp
.Fn dn_expand
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.Fa comp_dn
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.Fa msg
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.Fa exp_dn
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.Fa length
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.Sh ´ØÏ¢¥Õ¥¡¥¤¥ë
.Bl -tag -width Pa
/etc/resolv.conf
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.Xr resolver 5
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.El
.Sh ´ØÏ¢¹àÌÜ
.Xr gethostbyname 3 ,
.Xr resolver 5 ,
.Xr hostname 7 ,
.Xr named 8
.Pp
.%T RFC1032 ,
.%T RFC1033 ,
.%T RFC1034 ,
.%T RFC1035 ,
.%T RFC974
.Rs
.%T "Name Server Operations Guide for BIND"
.Re
.Sh Îò»Ë
.Fn res_query
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.Bx 4.3
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