From d7c88780e1df54f34563d60bd7fa01011d2eef03 Mon Sep 17 00:00:00 2001
From: chenluhua1980 <Chenluhua@qq.com>
Date: 星期一, 26 一月 2026 23:17:17 +0800
Subject: [PATCH] 1.CSVData.cpp 里 unserialize 用了 8*2、125*2，但 serialize 只写 8 + 125 字节。 m_svRawData.insert 的 end 指针是 pszBuffer + 125*2，没有用 index 计算，可能把无效区域一起拷进去。 一旦 size 实际是 133（不是 266），就会直接越界，堆会被破坏，m_svDatas.clear() 在销毁元素时崩。
---
SourceCode/Bond/BondEq/CPLC.cpp | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/SourceCode/Bond/BondEq/CPLC.cpp b/SourceCode/Bond/BondEq/CPLC.cpp
index 9b1584c..3c4d175 100644
--- a/SourceCode/Bond/BondEq/CPLC.cpp
+++ b/SourceCode/Bond/BondEq/CPLC.cpp
@@ -242,7 +242,7 @@
bool CPLC::isConnected()
{
- return m_pChannel->isConnected();
+ return m_pChannel != nullptr && m_pChannel->isConnected();
}
int CPLC::readWord(MC::SOFT_COMPONENT softComponent, unsigned int addr,
@@ -267,6 +267,12 @@
int value, ONWRITE funOnWrite)
{
return m_pChannel->writeWord(softComponent, addr, value, funOnWrite);
+}
+
+int CPLC::writeDWord(MC::SOFT_COMPONENT softComponent, unsigned int addr,
+ int value, ONWRITE funOnWrite)
+{
+ return m_pChannel->writeDWord(softComponent, addr, value, funOnWrite);
}
int CPLC::writeData(MC::SOFT_COMPONENT softComponent, unsigned int addr,
@@ -308,7 +314,7 @@
static int iii = 0;
iii++;
if (iii % 5 == 3) {
- if (!m_pChannel->isConnected())
+ if (m_pChannel != nullptr && !m_pChannel->isConnected())
m_pChannel->connect();
}
}
\ No newline at end of file
--
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