1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CONSCRYPT_BIO_OUTPUT_STREAM_H_ 18 #define CONSCRYPT_BIO_OUTPUT_STREAM_H_ 19 20 #include <jni.h> 21 22 #include <conscrypt/bio_stream.h> 23 24 namespace conscrypt { 25 26 class BioOutputStream : public BioStream { 27 public: 28 explicit BioOutputStream(jobject stream) : BioStream(stream) {} 29 30 int write(const char* buf, int len) { 31 JNIEnv* env = jniutil::getJNIEnv(); 32 if (env == nullptr) { 33 JNI_TRACE("BioOutputStream::write => could not get JNIEnv"); 34 return -1; 35 } 36 37 if (env->ExceptionCheck()) { 38 JNI_TRACE("BioOutputStream::write => called with pending exception"); 39 return -1; 40 } 41 42 ScopedLocalRef<jbyteArray> javaBytes(env, env->NewByteArray(len)); 43 if (javaBytes.get() == nullptr) { 44 JNI_TRACE("BioOutputStream::write => failed call to NewByteArray"); 45 return -1; 46 } 47 48 env->SetByteArrayRegion(javaBytes.get(), 0, len, reinterpret_cast<const jbyte*>(buf)); 49 50 env->CallVoidMethod(getStream(), jniutil::outputStream_writeMethod, javaBytes.get()); 51 if (env->ExceptionCheck()) { 52 JNI_TRACE("BioOutputStream::write => failed call to OutputStream#write"); 53 return -1; 54 } 55 56 return len; 57 } 58 }; 59 60 } // namespace conscrypt 61 62 #endif // CONSCRYPT_BIO_OUTPUT_STREAM_H_ 63
