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Add to_custom_script method #285

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Add to_custom_script method #285

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9 changes: 9 additions & 0 deletions lib/bitcoin/script.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -833,6 +833,15 @@ def self.to_op_return_script(data = nil)
return buf + pack_pushdata( [data].pack("H*") )
end

# Sometimes you might want to include a script with a custom stack
def self.to_custom_script(data = nil)
if data
[data].pack("H*")
else
[OP_NOP].pack("C")
end
end

# generate input script sig spending a pubkey output with given +signature+ and +pubkey+.
# returns a raw binary script sig of the form:
# <signature> [<pubkey>]
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6 changes: 6 additions & 0 deletions spec/unit/bitcoin/script/script_spec.rb
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Expand Up @@ -609,6 +609,12 @@ def build_p2sh_multisig_tx(num_to_unlock, *keys)
expect(Bitcoin::Script.to_p2sh_script(hash160))
.to eq(Bitcoin::Script.from_string("OP_HASH160 #{hash160} OP_EQUAL").raw)
end

it 'should generate a custom script' do
script = '6a0400004b5014000000004269747072696d0000000000000f4240'
expect(Bitcoin::Script.to_custom_script(script))
.to eq('6a0400004b5014000000004269747072696d0000000000000f4240'.htb)
end
end

describe 'generate script sigs' do
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