From 1ecf99bd0f332247df3a8976ae94e1b63b9d8a76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Fri, 27 Jan 2017 11:38:35 +0200
Subject: accounts/usbwallet: skip support on iOS altogether

---
 accounts/usbwallet/ledger.go        |  2 ++
 accounts/usbwallet/ledger_test.go   |  2 ++
 accounts/usbwallet/usb.go           | 27 --------------------------
 accounts/usbwallet/usbwallet.go     | 29 ++++++++++++++++++++++++++++
 accounts/usbwallet/usbwallet_ios.go | 38 +++++++++++++++++++++++++++++++++++++
 5 files changed, 71 insertions(+), 27 deletions(-)
 delete mode 100644 accounts/usbwallet/usb.go
 create mode 100644 accounts/usbwallet/usbwallet.go
 create mode 100644 accounts/usbwallet/usbwallet_ios.go

(limited to 'accounts/usbwallet')

diff --git a/accounts/usbwallet/ledger.go b/accounts/usbwallet/ledger.go
index 55b313df9..8f502c58e 100644
--- a/accounts/usbwallet/ledger.go
+++ b/accounts/usbwallet/ledger.go
@@ -18,6 +18,8 @@
 // wallets. The wire protocol spec can be found in the Ledger Blue GitHub repo:
 // https://raw.githubusercontent.com/LedgerHQ/blue-app-eth/master/doc/ethapp.asc
 
+// +build !ios
+
 package usbwallet
 
 import (
diff --git a/accounts/usbwallet/ledger_test.go b/accounts/usbwallet/ledger_test.go
index aeab2f0f0..16a1e0b3f 100644
--- a/accounts/usbwallet/ledger_test.go
+++ b/accounts/usbwallet/ledger_test.go
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
+// +build !ios
+
 package usbwallet
 
 /*
diff --git a/accounts/usbwallet/usb.go b/accounts/usbwallet/usb.go
deleted file mode 100644
index 550f05ba6..000000000
--- a/accounts/usbwallet/usb.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// 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
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// Package usbwallet implements support for USB hardware wallets.
-package usbwallet
-
-import "github.com/karalabe/gousb/usb"
-
-// deviceID is a combined vendor/product identifier to uniquely identify a USB
-// hardware device.
-type deviceID struct {
-	Vendor  usb.ID // The Vendor identifer
-	Product usb.ID // The Product identifier
-}
diff --git a/accounts/usbwallet/usbwallet.go b/accounts/usbwallet/usbwallet.go
new file mode 100644
index 000000000..3989f3d02
--- /dev/null
+++ b/accounts/usbwallet/usbwallet.go
@@ -0,0 +1,29 @@
+// 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
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+// +build !ios
+
+// Package usbwallet implements support for USB hardware wallets.
+package usbwallet
+
+import "github.com/karalabe/gousb/usb"
+
+// deviceID is a combined vendor/product identifier to uniquely identify a USB
+// hardware device.
+type deviceID struct {
+	Vendor  usb.ID // The Vendor identifer
+	Product usb.ID // The Product identifier
+}
diff --git a/accounts/usbwallet/usbwallet_ios.go b/accounts/usbwallet/usbwallet_ios.go
new file mode 100644
index 000000000..17d342903
--- /dev/null
+++ b/accounts/usbwallet/usbwallet_ios.go
@@ -0,0 +1,38 @@
+// 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
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+// This file contains the implementation for interacting with the Ledger hardware
+// wallets. The wire protocol spec can be found in the Ledger Blue GitHub repo:
+// https://raw.githubusercontent.com/LedgerHQ/blue-app-eth/master/doc/ethapp.asc
+
+// +build ios
+
+package usbwallet
+
+import (
+	"errors"
+
+	"github.com/ethereum/go-ethereum/accounts"
+)
+
+// Here be dragons! There is no USB support on iOS.
+
+// ErrIOSNotSupported is returned for all USB hardware backends on iOS.
+var ErrIOSNotSupported = errors.New("no USB support on iOS")
+
+func NewLedgerHub() (accounts.Backend, error) {
+	return nil, ErrIOSNotSupported
+}
-- 
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