From fd8d18ec280c3fe2c3d2651870c31c65b02039ba Mon Sep 17 00:00:00 2001
From: zelig <viktor.tron@gmail.com>
Date: Tue, 24 Mar 2015 12:37:00 +0000
Subject: unlocking coinbase - extract accounts.getKey method - if given empty
 address it retrieves coinbase (first account) - cli -unlock coinbase will
 unlock coinbase

---
 accounts/account_manager.go | 15 +++++++++++++--
 cmd/ethereum/main.go        |  5 ++++-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/accounts/account_manager.go b/accounts/account_manager.go
index 670d4337f..21ef46991 100644
--- a/accounts/account_manager.go
+++ b/accounts/account_manager.go
@@ -101,6 +101,17 @@ func (am *Manager) firstAddr() ([]byte, error) {
 	return addrs[0], nil
 }
 
+func (am *Manager) getKey(addr []byte, keyAuth string) (*crypto.Key, error) {
+	if len(addr) == 0 {
+		var err error
+		addr, err = am.firstAddr()
+		if err != nil {
+			return nil, err
+		}
+	}
+	return am.keyStore.GetKey(addr, keyAuth)
+}
+
 func (am *Manager) DeleteAccount(address []byte, auth string) error {
 	return am.keyStore.DeleteKey(address, auth)
 }
@@ -119,7 +130,7 @@ func (am *Manager) Sign(a Account, toSign []byte) (signature []byte, err error)
 // TimedUnlock unlocks the account with the given address.
 // When timeout has passed, the account will be locked again.
 func (am *Manager) TimedUnlock(addr []byte, keyAuth string, timeout time.Duration) error {
-	key, err := am.keyStore.GetKey(addr, keyAuth)
+	key, err := am.getKey(addr, keyAuth)
 	if err != nil {
 		return err
 	}
@@ -132,7 +143,7 @@ func (am *Manager) TimedUnlock(addr []byte, keyAuth string, timeout time.Duratio
 // stays unlocked until the program exits or until a TimedUnlock
 // timeout (started after the call to Unlock) expires.
 func (am *Manager) Unlock(addr []byte, keyAuth string) error {
-	key, err := am.keyStore.GetKey(addr, keyAuth)
+	key, err := am.getKey(addr, keyAuth)
 	if err != nil {
 		return err
 	}
diff --git a/cmd/ethereum/main.go b/cmd/ethereum/main.go
index 276480195..fea3fbf61 100644
--- a/cmd/ethereum/main.go
+++ b/cmd/ethereum/main.go
@@ -134,7 +134,7 @@ Exports the given account's private key into keyfile using the canonical EC form
 The account needs to be unlocked, if it is not the user is prompted for a passphrase to unlock it.
 For non-interactive use, the password can be specified with the --unlock flag:
 
-    ethereum --unlock <passwrdfile> account export <address> <keyfile>
+    ethereum --password <passwrdfile> account export <address> <keyfile>
 
 Note:
 Since you can directly copy your encrypted accounts to another ethereum instance, this import/export mechanism is not needed when you transfer an account between nodes.
@@ -305,6 +305,9 @@ func startEth(ctx *cli.Context, eth *eth.Ethereum) {
 
 	account := ctx.GlobalString(utils.UnlockedAccountFlag.Name)
 	if len(account) > 0 {
+		if account == "coinbase" {
+			account = ""
+		}
 		unlockAccount(ctx, am, account)
 	}
 	// Start auxiliary services if enabled.
-- 
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