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1 # Copyright (c) 2009 Michael Koziarski <michael@koziarski.com>
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2 #
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3 # Permission to use, copy, modify, and/or distribute this software for any
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4 # purpose with or without fee is hereby granted, provided that the above
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5 # copyright notice and this permission notice appear in all copies.
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6 #
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7 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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8 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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9 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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10 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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11 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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12 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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13 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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14
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15 require 'bigdecimal'
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16
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17 alias BigDecimalUnsafe BigDecimal
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18
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19
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20 # This fixes CVE-2009-1904 however it removes legitimate functionality that your
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21 # application may depend on. You are *strongly* advised to upgrade your ruby
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22 # rather than relying on this fix for an extended period of time.
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23
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24 def BigDecimal(initial, digits=0)
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25 if initial.size > 255 || initial =~ /e/i
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26 raise "Invalid big Decimal Value"
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27 end
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28 BigDecimalUnsafe(initial, digits)
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29 end
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30
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