#include <jni.h>

#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <dlfcn.h>
#include <string.h>
#include <android/log.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/types.h>
#include <signal.h>

#include "common.h"


extern "C" uint32_t do_hook(const char *module_path, uint32_t hook_func,
		const char *symbol_name);


pid_t fork_hook(void)
{
	pid_t p = -1;//fork();
	LOGE("fork = %d", p);
	return p;
}

void hookso(const char *path)
{
	LOGD("hook so [%s] ", path);

	uint32_t ret = 0;

	ret = do_hook(path, (uint32_t) fork_hook, "fork");
	LOGI(" > fork %s", ret? "suc." : "fail.");
}

void* dlopen_hook(const char* path, int flag)
{
	char newPath[256] = {0};

	LOGD("> dlopen [%s]", path);

	void* h = dlopen(path, flag);
	hookso(path);

	return h;
}

void hookdvm()
{
	uint32_t ret;

	LOGI("hook dvm...");

	ret = do_hook("/system/lib/libdvm.so", (uint32_t) dlopen_hook, "dlopen");
	if (ret == 0) {
		LOGE("ERROR: hook libdvm.dlopen failed!");
	}
}

void preHook()
{
	hookdvm();
}

int regNative(JNIEnv *env)
{
	return JNI_OK;
}

JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
{
	JNIEnv *env;

	if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
		LOGE("ERROR: GetEnv failed\n");
		goto bail;
	}

	if(regNative(env) != JNI_OK) {
		LOGE("ERROR: regNative failed\n");
		goto bail;
	}

	preHook();

	return JNI_VERSION_1_4;

bail:
	return JNI_ERR;
}

[注意]传递专业知识、拓宽行业人脉——看雪讲师团队等你加入！