swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints

2 files changed, 13 insertions, 1 deletions

diff --git a/internal/ethapi/addrlock.go b/internal/ethapi/addrlock.go
index 5a9c948b8..61ddff688 100644
--- a/internal/ethapi/addrlock.go
+++ b/internal/ethapi/addrlock.go
@@ -1,4 +1,4 @@
-// Copyright 2015 The go-ethereum Authors
+// Copyright 2017 The go-ethereum Authors
 // This file is part of the go-ethereum library.
 //
 // The go-ethereum library is free software: you can redistribute it and/or modify
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index 314086335..636d0bfe2 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -1135,6 +1135,18 @@ func (args *SendTxArgs) setDefaults(ctx context.Context, b Backend) error {
 	if args.Data != nil && args.Input != nil && !bytes.Equal(*args.Data, *args.Input) {
 		return errors.New(`Both "data" and "input" are set and not equal. Please use "input" to pass transaction call data.`)
 	}
+	if args.To == nil {
+		// Contract creation
+		var input []byte
+		if args.Data != nil {
+			input = *args.Data
+		} else if args.Input != nil {
+			input = *args.Input
+		}
+		if len(input) == 0 {
+			return errors.New(`contract creation without any data provided`)
+		}
+	}
 	return nil
 }