[ruby-talk:01688] Re: gethostbyname?

On 2 Mar 2000, Dave Thomas wrote:

> Hugh Sasse Staff Elec Eng <[e-mail]> writes:
> 
> > gethostbyname seems to be a method of IPSocket and Socket only.
> > What is the correct way to invoke it in ruby?  Everything I have tried 
> > tells me thee is no data for the machine I am on, although nslookup
> > shows its existence correctly.
> 
> There's TCPSocket.gethostbyname() and TCPSocket.getaddress().

and they both fail for me:

atlanta hgs 291 %> ./!$
./hostname2.rb
PATH /usr/ucb:/bin 
this host is atlanta

./hostname2.rb:17:in `getaddress': no address associated with
hostname. (SocketError)
        from ./hostname2.rb:17
atlanta hgs 292 %> cat hostname2.rb
#!/usr/local/bin/ruby -T

#Author: Hugh Sasse <[e-mail]>
#Started:  02-MAR-1999
#

ENV['PATH'] = "/usr/ucb:/bin"

require "socket"

print "PATH #{ENV['PATH']} \n"

thishost = `hostname`

print "this host is #{thishost}\n"

address = TCPSocket.getaddress(thishost)

print "this host has address #{address}"

atlanta hgs 293 %> 
...
atlanta hgs 295 %> diff -c hostname2.rb hostname3.rb
*** hostname2.rb        Thu Mar  2 15:34:48 2000
--- hostname3.rb        Thu Mar  2 15:38:08 2000
***************
*** 14,20 ****
  
  print "this host is #{thishost}\n"
  
! address = TCPSocket.getaddress(thishost)
  
  print "this host has address #{address}"
  
--- 14,20 ----
  
  print "this host is #{thishost}\n"
  
! address = TCPSocket.gethostbyname(thishost)
  
  print "this host has address #{address}"
  
atlanta hgs 296 %> ./!$
./hostname3.rb
PATH /usr/ucb:/bin 
this host is atlanta

./hostname3.rb:17:in `gethostbyname': no address associated with
hostname. (SocketError)
        from ./hostname3.rb:17
atlanta hgs 297 %> ruby -v
ruby 1.4.3 (1999-12-08) [sparc-solaris2.5.1]
atlanta hgs 298 %> 
> 
> Dave
> 
	Hugh
	[e-mail]