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require "webrick/utils"
module WEBrick
module Utils
##
# Creates TCP server sockets bound to +address+:+port+ and returns them.
#
# It will create IPV4 and IPV6 sockets on all interfaces.
#
# NOTE: We need to monkey patch this method because
# create_listeners on Windows with Ruby > 2.0.0 does not
# raise an error if we're already listening on a port.
#
def create_listeners(address, port, logger = nil)
#
# utils.rb -- Miscellaneous utilities
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright 2001-2016, TAKAHASHI Masayoshi, GOTOU Yuuzou
# Copyright 2002-2016, Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: utils.rb,v 1.10 2003/02/16 22:22:54 gotoyuzo Exp $
unless port
raise ArgumentError, "must specify port"
end
res = Socket::getaddrinfo(address, port,
Socket::AF_UNSPEC, # address family
Socket::SOCK_STREAM, # socket type
0, # protocol
Socket::AI_PASSIVE) # flag
last_error = nil
sockets = []
res.each{|ai|
begin
logger.debug("TCPServer.new(#{ai[3]}, #{port})") if logger
sock = TCPServer.new(ai[3], port)
port = sock.addr[1] if port == 0
Utils::set_close_on_exec(sock)
sockets << sock
rescue => ex
logger.warn("TCPServer Error: #{ex}") if logger
last_error = ex
end
}
raise last_error if sockets.empty?
return sockets
end
module_function :create_listeners
end
end
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