| 1 | |
| 2 | #include <jni.h> |
| 3 | #include "GetNativeString.h" |
| 4 | |
| 5 | char* GetNativeString(JNIEnv *env, jstring jstr){ |
| 6 | jbyteArray bytes = 0; |
| 7 | jthrowable exc; |
| 8 | char *result = 0; |
| 9 | |
| 10 | if ((*env)->EnsureLocalCapacity(env, 2) < 0) { |
| 11 | return 0; /* out of memory error */ |
| 12 | } |
| 13 | |
| 14 | jclass stringClass=(*env)->FindClass(env,"java/lang/String"); |
| 15 | |
| 16 | if(!stringClass){ |
| 17 | return 0; |
| 18 | } |
| 19 | |
| 20 | jmethodID MID_String_getBytes = (*env)->GetMethodID(env,stringClass,"getBytes","()[B"); |
| 21 | if(!MID_String_getBytes){ |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 25 | bytes = (*env)->CallObjectMethod(env, jstr, |
| 26 | MID_String_getBytes); |
| 27 | exc = (*env)->ExceptionOccurred(env); |
| 28 | if (!exc) { |
| 29 | jint len = (*env)->GetArrayLength(env, bytes); |
| 30 | result = malloc(len + 1); |
| 31 | if (result == 0) { |
| 32 | |
| 33 | /*JNU_ThrowByName(env, "java/lang/OutOfMemoryError", |
| 34 | 0);*/ |
| 35 | |
| 36 | (*env)->DeleteLocalRef(env, bytes); |
| 37 | return 0; |
| 38 | } |
| 39 | (*env)->GetByteArrayRegion(env, bytes, 0, len, |
| 40 | (jbyte *)result); |
| 41 | result[len] = 0; /* NULL-terminate */ |
| 42 | } else { |
| 43 | (*env)->DeleteLocalRef(env, exc); |
| 44 | } |
| 45 | (*env)->DeleteLocalRef(env, bytes); |
| 46 | return result; |
| 47 | } |
| 48 | |
| 49 | jstring GetJavaString(JNIEnv *env, char*); |