JNIEXPORT jstring JNICALL Java_com_imobile_thermalprinterwifiswitch_imobileJNI_WriteProc(JNIEnv *env, jclass arg, jstring Write_Path_from_JNI, jstring Write_value_from_JNI)
{
	char* Write_Path = Jstring2CStr(env,Write_Path_from_JNI);
	char* Write_value = Jstring2CStr(env,Write_value_from_JNI);
	char* status = "";

	//LOGI("[Po add] WriteProc() Write_Path=%s", Write_Path);
	//LOGI("[Po add] WriteProc() Write_value=%s", Write_value);
	//LOGI("[Po add] WriteProc() status=%s", status);

	FILE *f = fopen(Write_Path, "w");
	if (f == NULL)
	{
		LOGI("[Po add] WriteProc() error!");
		status = "xx";
	    exit(1);
	}

	/* print some text */
	const char *text = Write_value;
	fprintf(f, "%s\n", text);

	fclose(f);
	status = "oo";

	//LOGI("[Po add] TransportStringToC() %s", p);
	//Po log start
	LOGI("[Po add] WriteProc() %s", status);
	//Po log end

	return (*env)->NewStringUTF(env, status);
}
Beispiel #2
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JNIEXPORT jstring JNICALL Java_com_example_webdemo_util_H5Decode_decode(
		JNIEnv* env, jobject obj, jstring in, jstring account, jstring device) {
	char* cin = Jstring2CStr(env, in);
	char* cAccount = Jstring2CStr(env, account);
	char* cDeviceId = Jstring2CStr(env, device);
	//输入/////////////////
	LOGI("输入内容=%s", cin);
	LOGI("输入帐号=%s", cAccount);
	LOGI("输入deviceid=%s", cDeviceId);
	char hello[7] = { ',', 'h', 'e', 'l', 'l', 'o', '\0' };
	strcat(cin, hello);
	LOGI("处理后内容=%s", cin);

	MD5_CTX context = { 0 };
	MD5Init(&context);
	MD5Update(&context, "123456", 6);
	unsigned char d[16] = { 0 };
	MD5Final(d, &context);
	int i;
	char buffer[80];
	char destination[25];
	for(i=0;i<16;i++)
	{
		sprintf(buffer, "%s%02x", buffer, d[i]);
//		LOGI("%02x",d[i]);
	}
	//输出/////////////////
	return (*env)->NewStringUTF(env, buffer);
}
JNIEXPORT jstring JNICALL Java_com_util_dns_DnsUtil_getPtrRecord(JNIEnv *env,
		jobject obj, jstring str, jstring server) {
	char* p = Jstring2CStr(env, str);
	char* s = Jstring2CStr(env, server);
	LOGI("getPtrRecord:%s", p);
	my_dns_query(DNS_T_PTR,p,"send-query", s);
	return (*env)->NewStringUTF(env, dns_txt_record);
}
JNIEXPORT jstring JNICALL Java_com_util_dns_DnsUtil_getTxtRecord(JNIEnv *env,
		jobject obj, jstring str) {
	char* p = Jstring2CStr(env, str);
	LOGI("getTxtRecord:%s", p);
	my_dns_query(DNS_T_TXT,"all","send-query", p);
	return (*env)->NewStringUTF(env, dns_txt_record);
}
Beispiel #5
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 //com.yaozu.listener.playlist.provider
 JNIEXPORT void JNICALL Java_com_yaozu_listener_playlist_provider_NativeMediaScanner_processFile
         (JNIEnv *env, jobject obj, jstring path,jobject client) {
     if (!mMediaScanner) {
         mMediaScanner = new MediaScanner();
     }
     char *cpath = Jstring2CStr(env, path);
     MyMediaScannerClient myClient(env,client);
     mMediaScanner->processFile(cpath, myClient);
 }
Beispiel #6
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 JNIEXPORT jstring JNICALL Java_com_yaozu_listener_HomeMainActivity_fromC
         (JNIEnv *env, jobject obj, jstring path) {
     if (!mMediaScanner) {
         mMediaScanner = new MediaScanner();
     }
     char *cpath = Jstring2CStr(env, path);
     //MyMediaScannerClient myClient(env);
     //mMediaScanner->processFile(cpath, myClient);
     const char *cstr = ": c from char";
     return (env)->NewStringUTF(strcat(cpath, cstr));
 }
JNIEXPORT jstring JNICALL Java_com_ooieuioo_potestjni_PoJNITtest_TransportStringToC(JNIEnv *env, jclass arg,  jstring str)
{
	char* p = Jstring2CStr(env,str);
	char* Po_str = " from PoJNI!!";
	char* Po_marge = strcat(p,Po_str);

	//Po log start
	//LOGI("[Po add] TransportStringToC() %s", Po_marge);
	//Po log end

	return (*env)->NewStringUTF(env, Po_marge);
}
Beispiel #8
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/**
 * 返回数据str加上特定字符串后的字符串值。 (字符串拼接)
 */
JNIEXPORT jstring JNICALL Java_com_example_jnidemo2_DataProvider_returnStr
  (JNIEnv * env, jobject obj, jstring str)
{

	char * source = "Hello";

	char * destination = Jstring2CStr(env,str);//将Java中String类型的参数转为char *。

	strcat(destination,source);

	return (*env)->NewStringUTF(env, destination);//将C语言中的char *转为String。
}
Beispiel #9
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jstring AddString(JNIEnv *env, jstring a,
                  jstring b) {

    char *str_a = Jstring2CStr(env, a);
    char *str_b = Jstring2CStr(env, b);

    int len_a = strlen(str_a);
    int len_b = strlen(str_b);

    //concat string
    char *str_result = (char *) malloc(len_a + len_b + 1);
    strcpy(str_result, str_a);
    strcat(str_result, str_b);
    jstring jstr_result = (*env)->NewStringUTF(env, str_result); //创建string对象
    //delete[] str_result;

    (*env)->ReleaseStringUTFChars(env, a, str_a);
    (*env)->ReleaseStringUTFChars(env, b, str_b);
    (*env)->ReleaseStringUTFChars(env, jstr_result, str_result);
    return jstr_result; //返回ab字符串连接之后的结果
}
JNIEXPORT jstring JNICALL Java_com_imobile_thermalprinterwifiswitch_imobileJNI_ReadProc(JNIEnv *env, jclass arg,  jstring str)
{
	char* origin_path = Jstring2CStr(env,str);
	char* p = "";


#define CHUNK 1024 /* read 1024 bytes at a time */
	char buf[CHUNK];
	FILE *file;
	size_t nread;

	file = fopen(origin_path, "r");
	if (file) {
		while ((nread = fread(buf, 1, sizeof buf, file)) > 0)
			fwrite(buf, 1, nread, stdout);

		if (ferror(file)) {
			/* deal with error */
		}
		fclose(file);
	}

	LOGI("[Po add] ReadProc() %s", buf);
	char *test = strtok(buf, "\n");
//	while (test != NULL) {
//		LOGI("[Po add] TransportStringToC()  test=%s", test);

//	}


	if(strcmp(test, "1") == 0){
		p = test;
	}else if(strcmp(test, "0") == 0){
		p = test;
	}else{
		p = "xx";
	}

	//LOGI("[Po add] TransportStringToC() %s", p);
	//Po log start
	//LOGI("[Po add] TransportStringToC() %s", buf);
	//Po log end

	return (*env)->NewStringUTF(env, p);
}
Beispiel #11
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JNIEXPORT jstring JNICALL Java_com_rockgarden_sign_jni_JniSignHolder_getInfoMD5(
        JNIEnv *env, jobject thiz, jstring jInfo) {
    char *jstr = Jstring2CStr(env, jInfo);

    MD5_CTX context = {0};
    MD5Init(&context);
    MD5Update(&context, jstr, strlen(jstr));
    unsigned char dest[16] = {0};
    MD5Final(dest, &context);

    int i;
    char destination[32] = {0};
    for (i = 0; i < 16; i++) {
        sprintf(destination, "%s%02x", destination, dest[i]);
    }
    LOGI("%s", destination);
    return (*env)->NewStringUTF(env, destination);
}
Beispiel #12
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JNIEXPORT void JNICALL Java_com_example_administrator_topactivity_service_DaemonService_initDaemon(
		JNIEnv * env, jobject obj, jstring packageDir, jint sdkVersion) {
	// 1,将传递过来的java的包名转为c的字符串
	char * pd = Jstring2CStr(env, packageDir);

	// 2,创建当前进程的克隆进程
	pid_t pid = fork();

	// 3,根据返回值的不同做不同的操作,<0,>0,=0
	if (pid < 0) {
		// 说明克隆进程失败
		LOGD("current crate process failure");
	} else if (pid > 0) {
		// 说明克隆进程成功,而且该代码运行在父进程中
		LOGD("crate process success,current parent pid = %d", pid);
	} else {
		// 说明克隆进程成功,而且代码运行在子进程中
		LOGD("crate process success,current child pid = %d", pid);

		// 4,在子进程中监视/data/data/包名这个目录
		while (JNI_TRUE) {
			FILE* file = fopen(pd, "rt");

			if (file == NULL) {
				// 应用被卸载了,通知系统打开用户反馈的网页
				LOGD("app uninstall,current sdkversion = %d", sdkVersion);
				if (sdkVersion >= 17) {
					// Android4.2系统之后支持多用户操作,所以得指定用户
					execlp("am", "am", "start", "--user", "0", "-a","android.intent.action.VIEW", "-d","http://www.baidu.com", (char*) NULL);
				} else {
					// Android4.2以前的版本无需指定用户
					execlp("am", "am", "start", "-a","android.intent.action.VIEW", "-d","http://www.baidu.com", (char*) NULL);
				}
			} else {
				// 应用没有被卸载
				LOGD("app run normal");
			}
			sleep(1);
		}
	}

}
Beispiel #13
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JNICALL Java_com_charonchui_daemonservice_service_DaemonService_startDaemon
        (JNIEnv *env, jobject thiz, jstring serviceName, jint sdkVersion) {
    char *name = Jstring2CStr(env, serviceName);

//fork子进程,以执行轮询任务
    pid_t pid = fork();
    LOGI("fork=%d", pid);
    if (pid < 0) {
// fork失败了
    } else if (pid == 0) {
// 可以一直采用一直判断文件是否存在的方式去判断,但是这样效率稍低,下面使用监听的方式,死循环,每个一秒判断一次,这样太浪费资源了。
        int check = 1;
        while (check) {
            pid_t ppid = getppid();
            LOGI("pid=%d", getpid());
            LOGI("ppid=%d", ppid);
            if (ppid == 1) {
                LOGI("ppid == 1");
                if (sdkVersion >= 17) {
                    LOGI("> 17");
                    int ret = execlp("am", "am", "startservice", "--user", "0",
                                     "-n", name,
                                     (char *) NULL);
                } else {
                    execlp("am", "am", "startservice", "-n",
                           name,
                           (char *) NULL);
                    LOGI("else");
                }
                check = 0;
            } else {
            }
            sleep(1);
        }
    } else {
        LOGI("parent .. pid=%d", pid);
//父进程直接退出,使子进程被init进程领养,以避免子进程僵死
    }

}
Beispiel #14
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// JNIEnv *env, jobject thiz 默认传入
// 被调用的方法要放在前面,否则报错:conflicting types for "方法名"
JNIEXPORT jstring JNICALL Java_com_rockgarden_sign_jni_JniSignHolder_getCustomInfoMD5(
        JNIEnv *env, jobject thiz, jobject ctx, jstring jInfo) {

    jstring pkg_name = Java_com_rockgarden_sign_jni_Jni_GetPackageName(env, thiz, ctx);
    char *c1 = Jstring2CStr(env, pkg_name);
    char *c2 = "com.eastcom.mobile112";
    int result = strcmp(c1, c2);

    if (result == 0) {
        char *str = "AD161C0F-D5B5-86F2-6DCF-7D9ADCBC1AC7";
        jstring js = (*env)->NewStringUTF(env, str);
        //(*env)->ReleaseStringUTFChars(env, js, str);
        jstring newjs = AddString(env, jInfo, js);
        return Java_com_rockgarden_sign_jni_JniSignHolder_getInfoMD5(env, thiz, newjs);
    }
    else {
        char *c = "";
        jstring js = (*env)->NewStringUTF(env, c);
        //(*env)->ReleaseStringUTFChars(env, js, c);
        return js;
    }
}