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>