From c7ca81827da238239371f4fc1743aa976fa190d8 Mon Sep 17 00:00:00 2001
From: gggaa2152 <60614405+gggaa2152@users.noreply.github.com>
Date: Mon, 6 Apr 2026 06:10:57 +0800
Subject: [PATCH] Create memory_utils.h

---
 memory_utils.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 memory_utils.h

diff --git a/memory_utils.h b/memory_utils.h
new file mode 100644
index 000000000..a5cffd598
--- /dev/null
+++ b/memory_utils.h
@@ -0,0 +1,57 @@
+#ifndef MEMORY_UTILS_H
+#define MEMORY_UTILS_H
+
+#include <unistd.h>
+#include <sys/uio.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+// --- 安全读取内存逻辑 (学习自“那份代码”) ---
+// 使用 process_vm_readv 或者 pipe 探测法来防止非法地址读取导致的闪退
+
+template <typename T>
+T Read(uintptr_t address) {
+    T data{};
+    if (address < 0x1000000 || address > 0x7FFFFFFFFFFF) {
+        return data; // 过滤明显的非法指针
+    }
+
+    struct iovec local[1];
+    struct iovec remote[1];
+
+    local[0].iov_base = &data;
+    local[0].iov_len = sizeof(T);
+    remote[0].iov_base = (void*)address;
+    remote[0].iov_len = sizeof(T);
+
+    // 在内部注入时，如果 process_vm_readv 不可用，可以尝试使用安全拷贝
+    // 这里的实现保证了如果地址无效，程序不会直接崩溃
+    ssize_t nread = process_vm_readv(getpid(), local, 1, remote, 1, 0);
+    
+    if (nread < 0) {
+        // 如果系统不支持 vm_readv，回退到基本内存校验（可选实现）
+        return data; 
+    }
+
+    return data;
+}
+
+// 专门用于读取 Il2cpp 字符串或游戏名称的工具
+inline char* ReadString(uintptr_t address, size_t size) {
+    static char buffer[256];
+    memset(buffer, 0, sizeof(buffer));
+    
+    struct iovec local[1];
+    struct iovec remote[1];
+
+    local[0].iov_base = buffer;
+    local[0].iov_len = (size > 255) ? 255 : size;
+    remote[0].iov_base = (void*)address;
+    remote[0].iov_len = local[0].iov_len;
+
+    process_vm_readv(getpid(), local, 1, remote, 1, 0);
+    return buffer;
+}
+
+#endif // MEMORY_UTILS_H