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fix rub to crash gracefully upon decoding invalid data

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if we exceed the number of available bits, crash.
This commit is contained in:
~hatteb-mitlyd 2014-05-08 10:55:31 -07:00
parent 092cb9cd49
commit 7e80f0dfda
1 changed files with 6 additions and 1 deletions
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7
arvo/hoon.hoon
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@ -1743,7 +1743,12 @@
~/ %rub
|= [a=@ b=@]
^- [p=@ q=@]
=+ c==+(c=0 |-(?.(=(0 (cut 0 [(add a c) 1] b)) c $(c +(c)))))
=+ ^= c
=+ [c=0 m=(met 0 b)]
|- ?< (gth c m)
?. =(0 (cut 0 [(add a c) 1] b))
c
$(c +(c))
?: =(0 c)
[1 0]
=+ d=(add a +(c))