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Diffstat (limited to 'static/freebsd/man1/getaddrinfo.1')
| -rw-r--r-- | static/freebsd/man1/getaddrinfo.1 | 180 |
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diff --git a/static/freebsd/man1/getaddrinfo.1 b/static/freebsd/man1/getaddrinfo.1 new file mode 100644 index 00000000..fa9e8adc --- /dev/null +++ b/static/freebsd/man1/getaddrinfo.1 @@ -0,0 +1,180 @@ +.\" $NetBSD: getaddrinfo.1,v 1.5 2014/04/22 06:02:06 wiz Exp $ +.\" +.\" Copyright (c) 2013 The NetBSD Foundation, Inc. +.\" All rights reserved. +.\" +.\" This documentation is derived from text contributed to The NetBSD +.\" Foundation by Taylor R. Campbell. +.\" +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. +.\" +.Dd March 20, 2017 +.Dt GETADDRINFO 1 +.Os +.Sh NAME +.Nm getaddrinfo +.Nd resolve names to socket addresses +.Sh SYNOPSIS +.Nm +.Op Fl cNnP +.Op Fl f Ar family +.Op Fl p Ar protocol +.Op Fl s Ar service Ns Op Ns / Ns Ar protocol +.Op Fl t Ar socktype +.Op Ar hostname +.Sh DESCRIPTION +The +.Nm +utility resolves host and service names to socket addresses with +.Xr getaddrinfo 3 +and prints them to standard output in a user-friendly format. +.Pp +The output is a sequence of lines with space-separated fields: +.Pp +.Dl socket-type address-family protocol [af-specific data ...] +.Pp +For the +.Dq inet +and +.Dq inet6 +address families, the af-specific data are the IP/IPv6 address and port +number. +.Pp +Depending on the settings in +.Xr nsswitch.conf 5 , +.Nm +might query DNS for answers. +However, it is not intended to be a general-purpose DNS query utility. +Use +.Xr drill 1 +for that. +.Pp +These options are available: +.Bl -tag -width Ds +.It Fl c +Look up a canonical name as if with the +.Dv AI_CANONNAME +flag to +.Xr getaddrinfo 3 +and print it on the first line before the socket addresses. +.It Fl f Ar family +Specify an address family. +Address families are named like the +.Dv AF_... +constants for address family numbers in the +.Aq Pa sys/socket.h +header file but without the +.Dv AF_ +prefix and lowercase. +For example, +.Dq inet +corresponds with +.Dv AF_INET . +.It Fl N +Treat the service as numeric and do not attempt service name +resolution, as if with the +.Dv AI_NUMERICSERV +flag to +.Xr getaddrinfo 3 . +.It Fl n +Treat the hostname as a numeric address and do not attempt name +resolution, as if with the +.Dv AI_NUMERICHOST +flag to +.Xr getaddrinfo 3 . +.It Fl P +Return socket addresses intended for use with +.Xr bind 2 , +as if with the +.Dv AI_PASSIVE +flag to +.Xr getaddrinfo 3 . +By default, the socket addresses are intended for use with +.Xr connect 2 , +.Xr sendto 2 , +or +.Xr sendmsg 2 . +.It Fl p Ar protocol +Specify a protocol. +Protocols are numeric or symbolic as listed in +.Xr protocols 5 . +.It Fl s Ar service Ns Op Ns / Ns Ar protocol +Specify a service to look up. +Services are symbolic or numeric with an optional +protocol suffix as listed in +.Xr services 5 . +If a service is not specified, a hostname is required. +.It Fl t Ar socktype +Specify a socket type. +Socket types are named like the +.Dv SOCK_... +constants for socket type numbers in the +.Aq Pa sys/socket.h +header file but without the +.Dv SOCK_ +prefix and lowercase. +For example, +.Dq dgram +corresponds with +.Dv SOCK_DGRAM . +.El +.Sh EXIT STATUS +.Ex -std getaddrinfo +.Sh EXAMPLES +Look up +.Dq www.NetBSD.org : +.Bd -literal -offset indent +$ getaddrinfo www.NetBSD.org +dgram inet6 udp 2001:4f8:3:7:2e0:81ff:fe52:9ab6 0 +dgram inet udp 149.20.53.67 0 +stream inet6 tcp 2001:4f8:3:7:2e0:81ff:fe52:9ab6 0 +stream inet tcp 149.20.53.67 0 +.Ed +.Pp +The port number here is zero because no service was specified. +.Pp +Look up +.Dq morden.NetBSD.org +for stream sockets on port 80, and show the canonical name: +.Bd -literal -offset indent +$ getaddrinfo -c -t stream -s 80 morden.NetBSD.org +canonname ftp.NetBSD.org +stream inet6 tcp 2001:470:1f05:3d::21 80 +stream inet tcp 199.233.217.249 80 +.Ed +.Sh SEE ALSO +.Xr drill 1 , +.Xr getent 1 , +.Xr getaddrinfo 3 , +.Xr getnameinfo 3 , +.Xr resolver 3 , +.Xr hosts 5 , +.Xr nsswitch.conf 5 , +.Xr protocols 5 , +.Xr resolv.conf 5 , +.Xr services 5 , +.Xr ip6addrctl 8 +.Sh HISTORY +The +.Nm +command first appeared in +.Nx 7.0 . |