libcore_io_Linux.cpp revision 396a9c666da353b910b515d12eb1c43adfddb0c8
1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/* 2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License. 6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at 7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and 14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License. 15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */ 16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 17ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#define LOG_TAG "Posix" 18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 19996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes#include "AsynchronousSocketCloseMonitor.h" 20ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JNIHelp.h" 21ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JniConstants.h" 22ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "JniException.h" 230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include "NetworkUtilities.h" 240568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes#include "ScopedBytes.h" 25e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes#include "ScopedLocalRef.h" 260f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 27ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 2859fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include "StaticAssert.h" 291c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include "UniquePtr.h" 30ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h" 31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 321c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h> 33ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 340ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 35b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h> 364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h> 370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h> 381c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <netinet/in.h> 3970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h> 40a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h> 41ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 42461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 448b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes#include <sys/sendfile.h> 4559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <sys/socket.h> 4747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 480a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 490ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 50bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 517341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 5259fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> 530ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 54ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 63996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 64996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Used to retry syscalls that can return EINTR. This differs from TEMP_FAILURE_RETRY in that 65996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * it also considers the case where the reason for failure is that another thread called 66996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Socket.close. 67996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 68996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Assumes 'JNIEnv* env' and 'jobject javaFd' (which is a java.io.FileDescriptor) are in scope. 69996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 70996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Returns the result of 'exp', though a Java exception will be pending if the result is -1. 71996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 72996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Correct usage looks like this: 73996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 74996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * void Posix_syscall(JNIEnv* env, jobject javaFd, ...) { 75996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * ... 76996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * int fd; 77996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * NET_FAILURE_RETRY("syscall", syscall(fd, ...)); // Throws on error. 78996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * } 79996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 80996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes#define NET_FAILURE_RETRY(syscall_name, exp) ({ \ 81996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes typeof (exp) _rc = -1; \ 82996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 83996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 84996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes fd = jniGetFDFromFileDescriptor(env, javaFd); \ 85996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes AsynchronousSocketCloseMonitor monitor(fd); \ 86996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc = (exp); \ 87996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 88996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (_rc == -1) { \ 89996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (jniGetFDFromFileDescriptor(env, javaFd) == -1) { \ 90996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes jniThrowException(env, "java/net/SocketException", "Socket closed"); \ 91996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 92996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } else if (errno != EINTR) { \ 93996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes throwErrnoException(env, syscall_name); \ 94996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 95996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 96996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 97996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } while (_rc == -1); \ 98996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 99996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 1004f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 1014f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 102ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 103ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 104ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 105ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 106ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 107ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1084f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 1094f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 110f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 111f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 112f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 113f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 114f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 115ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 116ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 1174f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 118ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 1194f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 120ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 121ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 122dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 123dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 1244f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 1254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 1264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 1274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 1294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 1314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 1334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 1344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (error == EAI_SYSTEM) { 1354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // EAI_SYSTEM means "look at errno instead", so we want our GaiException to have the 1364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // relevant ErrnoException as its cause. 1374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 1384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 1394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 1404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, 1414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, 1434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 1454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 147dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 1487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 149dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 1507e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 151dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 152dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 15347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 15447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1558dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 156bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 157bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 158bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 159bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 160bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 161bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 162bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 163bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 164bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 165bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 166bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 167bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 168bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 169bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 170bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 171bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 172bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 173bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 174bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 175bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 176e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 1778dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 1788dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 179bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 180bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 181bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 182bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 183bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 184bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 185bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 186bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 187bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 188bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 189bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 190bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 1918dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 1928dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 193bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 194bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 195bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 196bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 197bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 198bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 199bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 200bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 201bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 202bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 203bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 204bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 205bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 206bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 207bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 208bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 2098dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 210bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 211bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 2120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeInetSocketAddress(JNIEnv* env, const sockaddr_storage* ss, int port) { 2130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jobject inetAddress = socketAddressToInetAddress(env, ss); 2140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 2150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 2180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 2190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 2200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage* ss) { 2230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (ss->ss_family == AF_INET) { 2240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int port = ntohs(reinterpret_cast<const sockaddr_in*>(ss)->sin_port); 2250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeInetSocketAddress(env, ss, port); 2260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } else if (ss->ss_family == AF_INET6) { 2270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int port = ntohs(reinterpret_cast<const sockaddr_in6*>(ss)->sin6_port); 2280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeInetSocketAddress(env, ss, port); 2290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes // TODO: support AF_UNIX and AF_UNSPEC, and have some other behavior for other families 2310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 23447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 23547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 23647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 23747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 23859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 23959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 24059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 24159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 24259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 24359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 24459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 24559fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 24659fa7163774d6930a174bc038414a4b780581957Elliott Hughes 24759fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 24859fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 24959fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 25059fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 25159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 25259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 25359fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 25459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 25559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 25659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 25759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 25859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 25947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 26047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 2620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 2630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 2640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 2670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 2680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 2690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 2700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2727341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 2737341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#define TO_JAVA_STRING(NAME) \ 2747341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes jstring NAME = env->NewStringUTF(buf. NAME); \ 2757341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (NAME == NULL) return NULL; 2767341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 2777341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(sysname); 2787341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(nodename); 2797341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(release); 2807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(version); 2817341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes TO_JAVA_STRING(machine); 2827341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#undef TO_JAVA_STRING 2837341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 2847341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 2857341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 2867341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 2877341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 2887341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 2897341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 290a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 291a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 292a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 293a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 294a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 295a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 296a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 297a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 298a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 299a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 300a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 30147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 30247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 30347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 30447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 30547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 30647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 30747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 30847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 309dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 31147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 31247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 31347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 314ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 315ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 316ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 317ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 318ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 319ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 320ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 32147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 322dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3237e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 324dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 325ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 326ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 327ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 328da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 329da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes sockaddr_storage ss; 330da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 331da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes return; 332da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes } 333996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes int fd; 334da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 335996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NET_FAILURE_RETRY("bind", bind(fd, sa, sizeof(sockaddr_storage))); 336da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 337da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 338b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 339b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 340b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 341b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 342b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 343b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 344b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 345b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 346462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 347462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 348462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 349462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 350462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 351462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 352462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 353462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 354462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 355462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 356462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 357462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 358996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 359996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes sockaddr_storage ss; 360996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 361996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes return; 362996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } 363996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes int fd; 364996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 365996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NET_FAILURE_RETRY("connect", connect(fd, sa, sizeof(sockaddr_storage))); 366996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 367996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 368396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 369396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 370396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 371396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 372396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 373396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 374396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 375396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 376396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 377396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 378396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 379396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 380ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 381ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 382ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 383ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 384ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 385fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 386fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 387fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 388fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 389fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 390fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 391fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 392fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 393fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 394fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 395fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 396fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 397fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 398fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 399fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 400fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 401fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 402fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 403fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 404fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 405fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 406fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 407fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 408fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 409fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 410fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 411fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); 412fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 413fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 414fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 415fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 416fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 417fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 418fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 419fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 420fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 421fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 42252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 42352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4247e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 42552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 42652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 42747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 42847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 42947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 43047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 431dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 4327e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 43347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 43447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 43547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 43647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 43747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 43859fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 43959fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 44059fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 44159fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 44259fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 44359fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 44459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 44559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 44659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 44759fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 44859fa7163774d6930a174bc038414a4b780581957Elliott Hughes 44952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 45052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 452f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 453f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 454f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 455f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 45752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 45852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 4594f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 4604f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 4614f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 4624f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 4631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) { 4641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 4651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 4661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 4671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 4681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 4691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 4701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 4711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 4721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 4731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 4741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 4751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 4761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 4771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 4781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 4791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 4801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 4811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 4821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList); 4831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 4841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 4851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes throwGaiException(env, "getaddrinfo", rc); 4861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 4871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 4881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 4891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 4901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 4911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 4921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 4931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 4941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 4951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes LOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 4961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 4971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 4981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 4991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 5031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 5041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 5051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 5091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 5101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 5111c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 5121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 5131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes LOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 5141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 5151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5161c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5171c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 5181c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage* address = reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 5191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, socketAddressToInetAddress(env, address)); 5201c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 5211c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5221c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5231c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 5241c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 5251c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5261c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 5271c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 5281c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 529396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 530396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getegid(); 531396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 532396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 533396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 534396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return geteuid(); 535396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 536396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 537396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 538396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getgid(); 539396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 540396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 541ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 542ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 543ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 544ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 545ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 546ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 547ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 548ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 5494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 5504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 551da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes if (!inetAddressToSockaddr_getnameinfo(env, javaAddress, 0, &ss)) { 5524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 5534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 5544f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // TODO: bionic's getnameinfo(3) seems to want its length parameter to be exactly 5554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // sizeof(sockaddr_in) for an IPv4 address and sizeof (sockaddr_in6) for an 5564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // IPv6 address. Fix getnameinfo so it accepts sizeof(sockaddr_storage), and 5574f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // then remove this hack. 5584f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes socklen_t size = (ss.ss_family == AF_INET) ? sizeof(sockaddr_in) : sizeof(sockaddr_in6); 5594f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 5604f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), size, buf, sizeof(buf), NULL, 0, flags); 5614f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 5624f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 5634f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 5644f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 5654f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 5664f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 5674f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 568396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 569396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getpid(); 570396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 571396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 572396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 573396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getppid(); 574396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 575396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 5760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 5770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 5790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 5800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t byteCount = sizeof(ss); 5810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, byteCount); 5820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)); 5830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 5840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockname"); 5850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 5860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 5870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeSocketAddress(env, &ss); 5880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 5890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 5900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 5910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 5930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 5940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 5950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 5960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 5970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 5980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 5990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 6010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 6020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 6030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 6040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 6050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 6060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 6080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 6100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return socketAddressToInetAddress(env, &ss); 6110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 6160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 6170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 6180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 6190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 6240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 6250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 6260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 6270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 6290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 6310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 6320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 6370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 6380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 6390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 6400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 6420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 6440a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 6450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6460a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 647396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 648396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getuid(); 649396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 650396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 651a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 652a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 653a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 654a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 655a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 656a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 657a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 658a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 6591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobject Posix_inet_aton(JNIEnv* env, jobject, jstring javaName) { 6601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 6611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 6621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 6651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 6661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_in* sin = reinterpret_cast<sockaddr_in*>(&ss); 6671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inet_aton(name.c_str(), &sin->sin_addr) == 0) { 6681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sin->sin_family = AF_INET; // inet_aton only supports IPv4. 6711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return socketAddressToInetAddress(env, &ss); 6721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 6731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 674a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 675a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 676a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 677a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 678a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 679a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 680a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 681a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 682a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 683a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 684a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return socketAddressToInetAddress(env, reinterpret_cast<sockaddr_storage*>(&req.ifr_addr)); 685a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 686a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 6878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 6888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 6898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 690461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 6928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 6938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 6948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 6958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 6968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 6978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 698461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 699461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 7009a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 7019a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7029a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes return TEMP_FAILURE_RETRY(isatty(fd)) == 0; 7039a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 7049a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 705a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 706a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 707a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 708a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 709e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 710e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 711e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 712e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 713e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 714dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 715dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7167e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 717dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 718dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 71947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 72047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 72147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 72247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 7230f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 7240f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 7250f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 7260f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 7270f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 7280f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7290f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 7300f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 7310f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 7320f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 733c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 734c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 735c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 736c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 737c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 738c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 739c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 740c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 7417e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 7427e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7437e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 7447e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 7457e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 7467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 7477e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7497e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 7507e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 7517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 7527e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 7537e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 7547e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 7557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 7567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 7577e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7587e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 7597e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 7607e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 7617e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 7627e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7637e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 7647e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 7657e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 7667e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 7677e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 7687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 7697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 7707e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 7710ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 7720ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 7730ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 7740ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 7750ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 7760ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 7770ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 7780ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 7790ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 78041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 78141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 78241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 78341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 78441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 78541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 78641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 78741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 78841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 78941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 79041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 79141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 79241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 79341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 79441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 79541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 79641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 79741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 79841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 79941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 80070c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 80170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 80270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 80370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 80470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 80570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Turn the Java libcore.io.StructPollfd[] into a C++ struct pollfd[]. 80670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 80770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 80870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 80970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 81070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 81170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 81270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 81370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 81470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 81570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 81670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 81770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 81870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 81970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 82070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 82170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 82270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 82370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 82470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes int rc = TEMP_FAILURE_RETRY(poll(fds.get(), count, timeoutMs)); 82570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 82670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 82770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 82870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 82970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 83070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Update the revents fields in the Java libcore.io.StructPollfd[]. 83198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 83270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 83398b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 83498b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 83598b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 83670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 83770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 83870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 83970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 84070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 8410568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 8420568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 84326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 84426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 84526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 84626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8470568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); 84826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 84926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 850bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 8518dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 852bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 853bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 854bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 855bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 856bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); 857bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 858bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 859c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 860c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 861c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 862c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 863c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 864c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 865c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 866c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 867a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 868a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 869a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 870a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 871a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 872a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 873a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 874a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 875a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 876a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 877a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 878a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 8798b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 8808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 8818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 8828b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 8838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 8848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 8858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 8868b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 8878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 8888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 8898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 8908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 8918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 8928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 8938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 8948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 8958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 8968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 897396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 898396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 899396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 900396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 901396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 902396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 903396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 904396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 905396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 906396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 907396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 908396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 909c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 910c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 911c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 912c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 913c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 914c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 915a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 916a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 917a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 918b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 919b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 920b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 921b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 922b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 923b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 924454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 925454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 926454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 927454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 928454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 929b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 930b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 931b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 932b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 933b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 934b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 935b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 936b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 937438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 938438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct group_req value; 939438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 940438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 941438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 942438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 943438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 944e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 945e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes if (!inetAddressToSockaddr(env, javaGroup.get(), 0, &value.gr_group)) { 946438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 947438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 948438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 949438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 950438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))); 951438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 952438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 953438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 954438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct GCC_HIDDEN group_req64 { 955438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 956438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 957438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 958438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 959438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes group_req64 value64; 960438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value64.gr_interface = value.gr_interface; 961438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes memcpy(&value64.gr_group, &value.gr_group, sizeof(value.gr_group)); 962438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value64, sizeof(value64))); 963438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 964438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 965438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 966438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 967c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 968c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 969c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 970c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 971c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 972c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 973c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 974c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 975c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 976c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 977c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 978c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 979c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 980c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 981c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 982c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_sec = env->GetIntField(javaTimeval, tvSecFid); 983c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_usec = env->GetIntField(javaTimeval, tvUsecFid); 984c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 985c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 986c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 987396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 988396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 989396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 990396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 99159e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 99259e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 99359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 99459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 99559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 996454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 997454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 998454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 999454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1000454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 100147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 100247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 100347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 100447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 10050ade5524d972b9dfd69b0126aa4c35319c1b7fa4Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jobject, jstring javaPath) { 100659fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 100759fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 100859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 100959fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 101059fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 101159fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 101259fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 101359fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 101459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 101559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 101659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 101759fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 101859fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1019ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 102052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1021ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1022ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1023ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1024ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1025a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1026a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1027a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1028a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1029a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1030a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1031a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1032a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1033a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1034a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1035a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1036a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 10376fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 10386fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 10396fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 10406fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 10416fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 10427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 10436fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 10446fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 10456fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 10466fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 10477341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 10487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 10497341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (throwIfMinusOne(env, "uname", TEMP_FAILURE_RETRY(uname(&buf))) == -1) { 10507341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return NULL; 10517341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 10527341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 10537341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 10547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 10550568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 10560568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 105778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 105878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 105978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 106078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 10610568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); 106278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 106378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1064bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 10658dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1066bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1067bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1068bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1069bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1070bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); 1071bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1072bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1073ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1074ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 1075da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1076b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 1077462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1078996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1079396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1080396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1081ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 1082fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 1083fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 1084fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), 108552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 108647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 108759fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 108852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1089f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 10904f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 10911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Llibcore/io/StructAddrinfo;)[Ljava/net/InetAddress;"), 1092396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1093396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1094396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1095ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 10964f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1097396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1098396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 10990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 11000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 11010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 11020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 11030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructLinger;"), 11040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructTimeval;"), 1105396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1106a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 11071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes NATIVE_METHOD(Posix, inet_aton, "(Ljava/lang/String;)Ljava/net/InetAddress;"), 1108a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 11098b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), 11109a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1111a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 1112e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1113dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 111447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 11150f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1116c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 11177e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 11187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 11197e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 11207e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 11217e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 11220ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 112341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 112470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes NATIVE_METHOD(Posix, poll, "([Llibcore/io/StructPollfd;I)I"), 11250568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1126bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1127c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1128a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 11298b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), 1130396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1131396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1132396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 1133c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1134b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1135454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1136b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 1137438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILlibcore/io/StructGroupReq;)V"), 1138c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILlibcore/io/StructLinger;)V"), 1139c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILlibcore/io/StructTimeval;)V"), 1140396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 114159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1142454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 114347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 114459fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 1145ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1146a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 11476fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 11487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 11490568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1150bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1151ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 1152ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesint register_libcore_io_Posix(JNIEnv* env) { 1153ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1154ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1155