Files
Zygisk-MyInjector/module/src/main/cpp/main.cpp
jiqiu2021 5408de21e5 add
2024-10-05 15:26:16 +08:00

81 lines
2.4 KiB
C++

#include <cstring>
#include <thread>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <cinttypes>
#include "hack.h"
#include "zygisk.hpp"
#include "game.h"
#include "log.h"
#include "dlfcn.h"
using zygisk::Api;
using zygisk::AppSpecializeArgs;
using zygisk::ServerSpecializeArgs;
class MyModule : public zygisk::ModuleBase {
public:
void onLoad(Api *api, JNIEnv *env) override {
this->api = api;
this->env = env;
}
void preAppSpecialize(AppSpecializeArgs *args) override {
auto package_name = env->GetStringUTFChars(args->nice_name, nullptr);
auto app_data_dir = env->GetStringUTFChars(args->app_data_dir, nullptr);
LOGI("preAppSpecialize %s %s", package_name, app_data_dir);
preSpecialize(package_name, app_data_dir);
env->ReleaseStringUTFChars(args->nice_name, package_name);
env->ReleaseStringUTFChars(args->app_data_dir, app_data_dir);
}
void postAppSpecialize(const AppSpecializeArgs *) override {
if (enable_hack) {
std::thread hack_thread(hack_prepare, _data_dir, data, length);
hack_thread.detach();
}
}
private:
Api *api;
JNIEnv *env;
bool enable_hack;
char *_data_dir;
void *data;
size_t length;
void preSpecialize(const char *package_name, const char *app_data_dir) {
if (strcmp(package_name, AimPackageName) == 0) {
LOGI("成功注入目标进程: %s", package_name);
enable_hack = true;
_data_dir = new char[strlen(app_data_dir) + 1];
strcpy(_data_dir, app_data_dir);
#if defined(__i386__)
auto path = "zygisk/armeabi-v7a.so";
#endif
#if defined(__x86_64__)
auto path = "zygisk/arm64-v8a.so";
#endif
#if defined(__i386__) || defined(__x86_64__)
int dirfd = api->getModuleDir();
int fd = openat(dirfd, path, O_RDONLY);
if (fd != -1) {
struct stat sb{};
fstat(fd, &sb);
length = sb.st_size;
data = mmap(nullptr, length, PROT_READ, MAP_PRIVATE, fd, 0);
close(fd);
} else {
LOGW("Unable to open arm file");
}
#endif
} else {
api->setOption(zygisk::Option::DLCLOSE_MODULE_LIBRARY);
}
}
};
REGISTER_ZYGISK_MODULE(MyModule)