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);
}
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);
}
//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);
}
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);
}
/**
* 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。
}
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);
}
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);
}
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);
}
}
}
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
}
}
// 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;
}
}