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#
# utils.rb -- Miscellaneous utilities
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: utils.rb,v 1.10 2003/02/16 22:22:54 gotoyuzo Exp $
require 'socket'
require 'fcntl'
begin
require 'etc'
rescue LoadError
nil
end
module WEBrick
module Utils
def set_close_on_exec(io)
if defined?(Fcntl::FD_CLOEXEC)
io.fcntl(Fcntl::FD_CLOEXEC, 1)
end
end
module_function :set_close_on_exec
def su(user, group=nil)
if defined?(Etc)
pw = Etc.getpwnam(user)
gr = group ? Etc.getgrnam(group) : pw
Process::gid = gr.gid
Process::egid = gr.gid
Process::uid = pw.uid
Process::euid = pw.uid
end
end
module_function :su
def getservername
host = Socket::gethostname
begin
Socket::gethostbyname(host)[0]
rescue
host
end
end
module_function :getservername
RAND_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
"0123456789" +
"abcdefghijklmnopqrstuvwxyz"
def random_string(len)
rand_max = RAND_CHARS.size
ret = ""
len.times{ ret << RAND_CHARS[rand(rand_max)] }
ret
end
module_function :random_string
end
end
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