.\" This man page is Copyright (C) 1998 Alan Cox.
.\" Permission is granted to distribute possibly modified copies
.\" of this page provided the header is included verbatim,
.\" and in case of nontrivial modification author and date
.\" of the modification is added to the header.
.\" $Id: ddp.7,v 1.6 1999/12/06 00:13:56 nakano Exp $
.\"
.\" Japanese Version Copyright (c) 1999 NAKANO Takeo all rights reserved.
.\" Translated Mon 6 Dec 1999 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\"
.TH DDP  7 1999-05-01 "Linux" "Linux Programmer's Manual"
.SH ̾
ddp \- Linux Ǥ AppleTalk ץȥμ
.SH 
.B #include <sys/socket.h>
.br
.B #include <netatalk/at.h>
.sp
.IB ddp_socket " = socket(PF_APPLETALK, SOCK_DGRAM, 0);"
.br
.IB raw_socket " = socket(PF_APPLETALK, SOCK_RAW, " protocol ");"
.SH 
Linux 
.I "Inside Appletalk"
˵ҤƤ Appletalk ץȥƤ롣
ͥˤΤ DDP ؤ AARP Ǥ롣
.B netatalk
ץȥ饤֥̤Ѥ褦߷פƤ롣
Υڡ DDP ؤľѤ桼Τˡ
󥿡ե򵭽ҤΤǤ롣
.PP
Appletalk ȥ桼ץȤ̿ˤϡ
BSD ߴΥåȥ󥿡եѤ롣
åȤ˴ؤܤ
.BR socket (7)
򸫤衣
.PP
Appletalk åȤϡ
åȥեߥ꡼ΰ
.B PF_APPLETALK
ꤷ
.BR socket (2)
ؿƤӽФȤˤä롣Ǥ륽åȥפϡ
.B ddp
åȤ򥪡ץ󤹤ˤ
.BR SOCK_DGRAM 
.B raw
åȤ򥪡ץ󤹤ˤ
.B SOCK_RAW
Ǥ롣
.I protocol
 Appletalk ץȥǤ롣
åȥפ
.B SOCK_RAW
ꤷϡץȥ
.B ATPROTO_DDP
ꤷʤФʤʤ
.PP
raw åȤϼ¸桼 ID  0 Υץ
.B CAT_NEW_RAW
¤äץǤʤȥץǤʤ
.SS ɥ쥹Υեޥå
Appletalk åȥɥ쥹ϥͥåȥֹ桦Ρֹ桦ݡֹ
Ȥ߹碌롣
.PP
.in +4n
.nf
struct at_addr {
    unsigned short s_net;
    unsigned char  s_node;
};

struct sockaddr_atalk {
    sa_family_t    sat_family;    /* address family */
    unsigned char  sat_port;      /* port */
    struct at_addr sat_addr;      /* net/node */
};
.fi
.in
.PP
.I sat_family
Ͼ
.B AF_APPLETALK
ꤹ롣
.I sat_port
ϥݡȤͿ롣ݡֹ椬 129 ʲΥݡȤ
ͽݡ(reserved port) ȸƤФ롣¸桼 ID  0 Υץ
.B CAP_NET_BIND_SERVICE
¤ĥץΤ褦ʥåȤ
.BR bind (2)
Ǥ롣
.I sat_addr
ϥۥȥɥ쥹Ǥ롣
.I struct at_addr
ΥС
.I s_net
ˤϥۥȤΥͥåȥͥåȥХȥͿ롣
.B AT_ANYNET
ϥ磻ɥɤǡ֤ΥͥåȥפۤΤ˴ޤޤ롣
.I struct at_addr
ΥС
.I s_node
ˤϥۥȤΥΡֹͿ롣
.B AT_ANYNODE
ϥ磻ɥɤǡ֤ΥΡɡפۤΤ˴ޤޤ롣
.B ATADDR_BCAST
ϥʥ֥ɥ㥹ȥɥ쥹Ǥ롣
.\" FIXME this doesn't make sense [johnl]
.SS åȥץ
ץȥͭΥåȥץϤʤ
.SS SYSCTL
Appletalk ΥХѥ᡼ΤĤϡ
sysctl ̤ꤹ뤳ȤǤ롣
 sysctl إˤϡ
.I proc/sys/net/atalk/*
եɤ߽񤭤ˡȡ󥿡եФ
.BR sysctl (2)
Ѥˡ롣
.TP
.B aarp-expiry-time
AARP å奨ȥ˴ޤǤΥ।󥿡Х (ñ)
.TP
.B aarp-resolve-time
AARP å奨ȥ꤬褵ޤǤΥ।󥿡Х (ñ)
.TP
.B aarp-retransmit-limit
AARP ꡼κβۤȡ
ΥΡɤ dead ǤȤߤʤ롣
.TP
.B aarp-tick-time
ޡư AARP Υޡ졼 (ñ)
.PP
ǥեȤͤǻͤ˥ޥåƤΤǡ
ѹɬפʤϤǤ롣
.SS ioctl
.BR socket (7)
˵ҤƤ뤹٤Ƥ ioctl 
ddp ˤŬѤ롣
.\" FIXME Add a section about multicasting
.SH 顼
.\" FIXME document all errors. We should really fix the kernels to
.\" give more uniform error returns (ENOMEM vs ENOBUFS, EPERM vs
.\" EACCES etc.)
.TP
.B EACCES
桼ԤȤɬפʸ¤äƤʤ
broadcast ե饰򥻥åȤ˥֥ɥ㥹ȥɥ쥹ԤȤ
¸桼 ID  0 Ǥʤ
.B CAP_NET_BIND_SERVICE
¤ΤʤץøݡȤХɤ褦Ȥʤɤͤ롣
.TP
.B EADDRINUSE
˻ѤƤ륢ɥ쥹˥Хɤ褦Ȥ
.TP
.B EADDRNOTAVAIL
¸ߤʤ󥿡ե׵ᤵ줿ޤ
׵ᤵ줿ɥ쥹ʤΤǤʤ
.TP
.B EAGAIN
֥å󥰥åȤФƥ֥åԤä
.TP
.B EALREADY
֥å󥰥åȤФ³˼¹Ǥ롣
.TP
.B ECONNABORTED
.BR accept (2)
³줿
.TP
.B EHOSTUNREACH
Ԥ襢ɥ쥹˥ޥå륨ȥ꤬롼ƥ󥰥ơ֥ˤʤ
.TP
.B EINVAL
Ϥ
.TP
.B EISCONN
³ѤߤΥåȤФ
.BR connect (2)
ƤФ줿
.TP
.B EMSGSIZE
ǡब DDP MTU 礭
.TP
.B ENODEV
ͥåȥǥХʤ뤤 IP 뤳ȤǤʤ
.TP
.B ENOENT
ѥåȤ夷ƤʤåȤФ
.B SIOCGSTAMP
ƤФ줿
.TP
.BR ENOMEM "  " ENOBUFS
꤬­ʤ
.TP
.B ENOPKG
ͥΥ֥ƥबꤵƤʤ
.TP
.BR ENOPROTOOPT "  " EOPNOTSUPP
Ϥåȥץ
.TP
.B ENOTCONN
ԤȤ³ѤߤΥåȤФƤΤƤΤ
ΥåȤ³Ƥʤä
.TP
.B EPERM
⤤ͥ٤ꤷꡢѹꡢ
ꤷץ䥰롼פ˥ʥΤɬפʸ¤
桼äƤʤ
.TP
.B EPIPE
³ˤäơ̾ʳΤǥޤϥåȥ󤵤줿
.TP
.B ESOCKTNOSUPPORT
åȤꤵƤʤޤ̤ΤΥåȥפ׵ᤵ줿
.SH С
Appletalk  Linux 2.0 ʹߤǥݡȤƤ롣
.B sysctl
󥿡ե Linux 2.2 鿷Ƴ줿
.SH 
.B SO_BROADCAST
ץѤˤϿŤξˤ⿵ŤˤʤäƤۤ
Linux ǤϤøɬפȤʤ
դ˥֥ɥ㥹ȥɥ쥹Ԥȡ
ͥåȥξ֤ñѹƤޤ
.SS ܿ
Ū Appletalk åȥ󥿡ե
BSD ͳΥƥˤ
.B netatalk
ȸߴ롣¿ BSD ƥǤϡ
֥ɥ㥹ȥե졼褦ȤȤ
.B SO_BROADCAST
Υå˼Ԥ롣ϸߴȤʤ뤫⤷ʤ
.PP
raw åȥ⡼ɤ Linux äΤΤǡ⤦μǤ CAP
ѥå䡢 Appletalk ˥ġñ˼Ǥ褦ˤʤ롣
.SH Х
顼ͤޤäӤƤʤ
.PP
롼ƥ󥰥ơ֥롦ǥХ AARP ơ֥롦¾ΥǥХ
ꤹ뤿Ѥ ioctl ޤҤƤʤ
.SH Ϣ
.BR recvmsg (2),
.BR sendmsg (2),
.BR capabilities (7),
.BR socket (7)