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