SRV(2)SRV(2)NAMEsrv - network name and address translation when hosted
SYNOPSIS
include "srv.m"
srv := load Srv Srv->PATH;
Srv: module
{
init: fn();
iph2a: fn(host: string): list of string;
ipa2h: fn(addr: string): list of string;
ipn2p: fn(protocol, service: string): string;
};
DESCRIPTION
Srv provides access to the host operating system's name and address
translation when Inferno is running hosted. The module's implementa‐
tion is usually built-in to emu(1), and then only on some platforms.
It uses the Internet name resolution services of the host operating
system (eg, gethostbyname on Unix systems). Its services are normally
only used internally by cs(8) and dns(8), and even they give priority
to data in services(6) and dns(6) if available. Other Inferno applica‐
tions normally give network addresses to the functions of dial(2), and
they are then translated automatically, using the services of cs(8).
Init must be called before any other function is used.
Given a host name, iph2a returns a list of its Internet addresses (if
any). Given an Internet address, ipa2h returns a list of host names
(if any) that have that address. The results are only as accurate as
the host system's name service.
Ipn2p returns the port number (as a string) for the given service when
accessed using a particular protocol protocol (typically tcp or udp).
SOURCE
/emu/port/srv.c
SEE ALSOsys-file2chan(2), cs(8), dns(8)SRV(2)
