! Fixes all tests

Some code has been removed. Version control is not synonymous with code storage - if you're not using it now, you probably don't have working tests and the code will be buggy anyway. Write it when you need it.
This commit is contained in:
Kaspar Schiess 2010-02-12 14:39:57 +01:00
parent 75f37c58b9
commit 1509aa8ef6
16 changed files with 164 additions and 166 deletions

View file

@ -4,32 +4,19 @@ module Net
module Bignum
def to_ber
#i = [self].pack('w')
#i.length > 126 and raise Net::BER::BerError.new( "range error in bignum" )
#[2, i.length].pack("CC") + i
# NOTE: Array#pack's 'w' is a BER _compressed_ integer. We need uncompressed
# BER integers, so we're not using that.
# See also: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/228864
result = []
# Ruby represents Bignums as two's-complement numbers so we may actually be
# good as far as representing negatives goes.
# I'm sure this implementation can be improved performance-wise if necessary.
# Ruby's Bignum#size returns the number of bytes in the internal representation
# of the number, but it can and will include leading zero bytes on at least
# some implementations. Evidently Ruby stores these as sets of quadbytes.
# It's not illegal in BER to encode all of the leading zeroes but let's strip
# them out anyway.
#
sz = self.size
out = "\000" * sz
(sz*8).times {|bit|
if self[bit] == 1
out[bit/8] += (1 << (bit % 8))
end
}
while out.length > 1 and out[-1] == 0
out.slice!(-1,1)
n = self
while n>0
b = n & 0xff
result << b
n = n >> 8
end
[2, out.length].pack("CC") + out.reverse
"\002" + ([result.size] + result.reverse).pack('C*')
end
end