From 5336371f74544ca0dd9a2b5ac06af3e0980b581d Mon Sep 17 00:00:00 2001
From: echo <2220386943@qq.com>
Date: Wed, 24 Apr 2024 17:24:30 +0800
Subject: [PATCH] fix cppDemangle len range the symbol man len

---
 symbol/symbol_resolve.cpp | 11 +++++++++--
 symbol/symbol_resolve.h   |  1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/symbol/symbol_resolve.cpp b/symbol/symbol_resolve.cpp
index fd6dc66..79e97ea 100644
--- a/symbol/symbol_resolve.cpp
+++ b/symbol/symbol_resolve.cpp
@@ -354,6 +354,13 @@ bool SymbolUtils::IsNumber(const std::string& str)
     return true;
 }
 
+void SymbolUtils::StrCpy(char* dst, int dstLen, const char* src)
+{
+    int size = strlen(src) > dstLen ? dstLen + 1 : strlen(src) + 1;
+    memcpy(dst, src, size);
+    dst[dstLen] = '\0';
+}
+
 bool MyElf::IsExecFile()
 {
     return elf.get_hdr().type == elf::et::exec;
@@ -737,12 +744,12 @@ void SymbolResolve::SearchElfInfo(MyElf& myElf, unsigned long addr, struct Symbo
     std::string symName = elfSym->get_name();
     char *name = CppNamedDemangle(symName.c_str());
     if (name) {
-        strcpy(symbol->symbolName, name);
+        SymbolUtils::StrCpy(symbol->symbolName, MAX_LINUX_SYMBOL_LEN, name);
         free(name);
         name = nullptr;
         return;
     }
-    strcpy(symbol->symbolName, symName.c_str());
+    SymbolUtils::StrCpy(symbol->symbolName, MAX_LINUX_SYMBOL_LEN, symName.c_str());
     return;
 }
 
diff --git a/symbol/symbol_resolve.h b/symbol/symbol_resolve.h
index edb79e7..48ec514 100644
--- a/symbol/symbol_resolve.h
+++ b/symbol/symbol_resolve.h
@@ -142,6 +142,7 @@ namespace KUNPENG_SYM {
         static bool IsValidPath(const std::string& filePath);
         static bool IsNumber(const std::string& str);
         static void FreeStackAsm(struct StackAsm** stackAsm);
+        static void StrCpy(char* dst, int dstLen, const char* src);
     };
     class SymbolResolve {
     public:
-- 
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