SOCKET_GETNAMEINFO(1p)User Contributed Perl DocumentatioSOCKET_GETNAMEINFO(1p)
NAME
"socket_getnameinfo" - command-line tool to "getnameinfo(3)" resolver
SYNOPSIS
socket_getnameinfo [options...] address port
DESCRIPTION
This tool provides a convenient command-line wrapper around the
getnameinfo(3) resolver function. It will perform a single reverse
lookup to convert an address and port number into its host and service
names. This is mainly useful when debugging names resolution problems,
because it allows inspection of the getnameinfo(3) behaviour itself,
outside of any real program that is trying to use it.
OPTIONS
--address, -A ADDR
Numerical form of address to look up. If not supplied, will use
the first positional argument.
--port, -P PORT
Port number to look up. If not supplied, will use the second
positional argument.
--dgram Sets the "NI_DGRAM" flag; looks up a "SOCK_DGRAM" (udp) port
allocation rather than "SOCK_STREAM" (tcp).
--help Display a help summary and exit
NOTE
Upstream this script is known as "getnameinfo", but was renamed on
Debian.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.34.0 2022-10-13 SOCKET_GETNAMEINFO(1p)
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