From 24384be242b4fb4ac768aeebca0f0d642d66beae Mon Sep 17 00:00:00 2001
From: Richard Holland <richard.holland@starstone.co.nz>
Date: Thu, 23 Mar 2023 12:05:44 +0000
Subject: [PATCH] allow nops to be specified in emitted txns

---
 src/ripple/protocol/impl/STArray.cpp  | 13 +++++++++++++
 src/ripple/protocol/impl/STObject.cpp | 14 ++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/src/ripple/protocol/impl/STArray.cpp b/src/ripple/protocol/impl/STArray.cpp
index ae9c0410d..0410a13d6 100644
--- a/src/ripple/protocol/impl/STArray.cpp
+++ b/src/ripple/protocol/impl/STArray.cpp
@@ -58,11 +58,24 @@ STArray::STArray(std::vector<STObject> const& v, SField const& f) : STBase(f)
 
 STArray::STArray(SerialIter& sit, SField const& f, int depth) : STBase(f)
 {
+    uint8_t nop_counter = 0;
     while (!sit.empty())
     {
         int type, field;
         sit.getFieldID(type, field);
 
+        // pass nops
+        if (type == 9 && field == 9)
+        {
+            if (++nop_counter == 64)
+            {
+                JLOG(debugLog().error())
+                    << "Too many NOPS";
+                Throw<std::runtime_error>("Too many NOPS");
+            }
+            continue;
+        }
+
         if ((type == STI_ARRAY) && (field == 1))
             break;
 
diff --git a/src/ripple/protocol/impl/STObject.cpp b/src/ripple/protocol/impl/STObject.cpp
index a64fe14b9..5c88ef87d 100644
--- a/src/ripple/protocol/impl/STObject.cpp
+++ b/src/ripple/protocol/impl/STObject.cpp
@@ -183,6 +183,8 @@ STObject::set(SerialIter& sit, int depth)
 
     v_.clear();
 
+    uint8_t nop_counter = 0;
+
     // Consume data in the pipe until we run out or reach the end
     while (!sit.empty())
     {
@@ -192,6 +194,18 @@ STObject::set(SerialIter& sit, int depth)
         // Get the metadata for the next field
         sit.getFieldID(type, field);
 
+        // pass nops
+        if (type == 9 && field == 9)
+        {
+            if (++nop_counter == 64)
+            {
+                JLOG(debugLog().error())
+                    << "Too many NOPS";
+                Throw<std::runtime_error>("Too many NOPS");
+            }
+            continue;
+        }
+
         // The object termination marker has been found and the termination
         // marker has been consumed. Done deserializing.
         if (type == STI_OBJECT && field == 1)