From 7e0c73c2d587b2c1c066a1c6abe7e05afebdf359 Mon Sep 17 00:00:00 2001
From: guoyonggang <hero.gariker@gmail.com>
Date: Fri, 16 Mar 2018 12:03:49 +0800
Subject: [PATCH 1/2] add function to update witness

---
 api/api.proto       | 4 ++++
 core/Contract.proto | 5 +++++
 core/Tron.proto     | 1 +
 3 files changed, 10 insertions(+)

diff --git a/api/api.proto b/api/api.proto
index 77e4be1938c..3b3f8a038ef 100644
--- a/api/api.proto
+++ b/api/api.proto
@@ -38,6 +38,10 @@ service Wallet {
 
   rpc ListWitnesses (EmptyMessage) returns (WitnessList) {
 
+  };
+  
+  rpc UpdateWitness (WitnessUpdateContract) returns (Transaction) {
+
   };
 
   rpc CreateWitness (WitnessCreateContract) returns (Transaction) {
diff --git a/core/Contract.proto b/core/Contract.proto
index 8b3fff1167f..0f12aecbb70 100644
--- a/core/Contract.proto
+++ b/core/Contract.proto
@@ -64,6 +64,11 @@ message WitnessCreateContract {
   bytes url = 12;
 }
 
+message WitnessUpdateContract {
+  bytes owner_address = 1;
+  bytes update_url = 12;
+}
+
 message AssetIssueContract {
   bytes owner_address = 1;
   bytes name = 2;
diff --git a/core/Tron.proto b/core/Tron.proto
index fc48f122c51..75b0e80882b 100644
--- a/core/Tron.proto
+++ b/core/Tron.proto
@@ -79,6 +79,7 @@ message Transaction {
       WitnessCreateContract = 5;
       AssetIssueContract = 6;
       DeployContract = 7;
+      WitnessUpdateContract = 8;
     }
     ContractType type = 1;
     google.protobuf.Any parameter = 2;

From 69f9cb6fba8d259f1fa135720cf3fddaf6f48619 Mon Sep 17 00:00:00 2001
From: sasaxie <xiexiaodong917@163.com>
Date: Fri, 16 Mar 2018 12:13:35 +0800
Subject: [PATCH 2/2] Update Contract.proto

---
 core/Contract.proto | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/Contract.proto b/core/Contract.proto
index 0f12aecbb70..105f28a47d9 100644
--- a/core/Contract.proto
+++ b/core/Contract.proto
@@ -61,7 +61,7 @@ message VoteWitnessContract {
 
 message WitnessCreateContract {
   bytes owner_address = 1;
-  bytes url = 12;
+  bytes url = 2;
 }
 
 message WitnessUpdateContract {