libcore_io_Linux.cpp revision 553d98af897f7202de5e5a776287de0b5ca8fe39
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> 40d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h> 41a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h> 42ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 43461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 447e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 458b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes#include <sys/sendfile.h> 4659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <sys/socket.h> 4847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 490a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 500ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 51bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 527341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 5359fa7163774d6930a174bc038414a4b780581957Elliott Hughes#include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> 540ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 55ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 56d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 57d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 58d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (NAME == NULL) return NULL; 59d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 68996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 69996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Used to retry syscalls that can return EINTR. This differs from TEMP_FAILURE_RETRY in that 70996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * it also considers the case where the reason for failure is that another thread called 71996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Socket.close. 72996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 73996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Assumes 'JNIEnv* env' and 'jobject javaFd' (which is a java.io.FileDescriptor) are in scope. 74996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 75996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Returns the result of 'exp', though a Java exception will be pending if the result is -1. 76996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 77996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Correct usage looks like this: 78996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 79996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * void Posix_syscall(JNIEnv* env, jobject javaFd, ...) { 80996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * ... 81996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * int fd; 82996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * NET_FAILURE_RETRY("syscall", syscall(fd, ...)); // Throws on error. 83996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * } 84996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 85996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes#define NET_FAILURE_RETRY(syscall_name, exp) ({ \ 86996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes typeof (exp) _rc = -1; \ 87996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 88996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 89996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes fd = jniGetFDFromFileDescriptor(env, javaFd); \ 90996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes AsynchronousSocketCloseMonitor monitor(fd); \ 91996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc = (exp); \ 92996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 93996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (_rc == -1) { \ 94996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (jniGetFDFromFileDescriptor(env, javaFd) == -1) { \ 95996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes jniThrowException(env, "java/net/SocketException", "Socket closed"); \ 96996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 97996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } else if (errno != EINTR) { \ 98996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes throwErrnoException(env, syscall_name); \ 99996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 100996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 101996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 102996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } while (_rc == -1); \ 103996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 104996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 1054f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 1064f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 107ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 108ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 109ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 110ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 111ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 112ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1134f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 1144f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 115f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 116f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 117f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 118f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 119f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 120ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 121ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 1224f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 123ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 1244f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 125ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 126ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 127dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 128dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 1294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 1304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 1314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 1324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 1344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 1364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 1384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 1394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (error == EAI_SYSTEM) { 1404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // EAI_SYSTEM means "look at errno instead", so we want our GaiException to have the 1414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // relevant ErrnoException as its cause. 1424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 1434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 1444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 1454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, 1464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, 1484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 1504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 152dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 1537e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 154dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 1557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 156dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 157dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 15847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 15947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1608dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 161bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 162bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 163bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 164bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 165bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 166bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 167bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 168bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 169bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 170bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 171bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 172bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 173bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 174bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 175bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 176bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 177bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 178bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 179bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 180d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 181bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 182e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 1838dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 1848dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 185bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 186bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 187bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 188bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 189bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 190bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 191bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 192bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 193bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 194bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 195bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 196bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 1978dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 1988dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 199bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 200bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 201bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 202bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 203bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 204bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 205bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 206bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 207bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 208bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 209bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 210bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 211bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 212bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 213bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 214bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 2158dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 216bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 217bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 21823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage* ss) { 21923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes // TODO: support AF_UNIX and AF_UNSPEC (and other families?) 22023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jint port; 22123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 2220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 2230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 2260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 2270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 2280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 230d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 231d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 232d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 233d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 234d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 235d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 236d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 237d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 238d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 239d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 24047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 24147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 24247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 24347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 24459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 24559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 24659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 24759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 24859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 24959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 25059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 25159fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 25259fa7163774d6930a174bc038414a4b780581957Elliott Hughes 25359fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 25459fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 25559fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 25659fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 25759fa7163774d6930a174bc038414a4b780581957Elliott Hughes 25859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 25959fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 26059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 26159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 26259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 26359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 26459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 26547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 26647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 2680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 2690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 2700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 2730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 2740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 2750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 2760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2787341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 279d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 280d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 281d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 282d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 283d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 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 301553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage* ss) { 302553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (rc == -1 || javaInetSocketAddress == NULL) { 303553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 304553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 305553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 306553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 307553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 308553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 309553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 310553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 311553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 312553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 313553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetObjectField(javaInetSocketAddress, addressFid, sender); 314553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetIntField(javaInetSocketAddress, portFid, port); 315553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 316553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 317553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 31847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 31947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 32047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 32147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 32247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 32347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 32447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 32547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 326dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3277e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 32847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 32947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 33047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 331ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 332ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 333d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 334d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 335d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 336d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 337d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mBufferSize == -1UL) { 338d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // We're probably on bionic, where 1KiB should be enough for anyone. 339d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: fix bionic to return 1024 like glibc. 340d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = 1024; 341d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 342d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 343d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 344d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 345d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 346d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 347d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 348d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 349d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 350d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 351d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 352d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 353d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 354d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 355d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 356d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 357d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 358d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 359d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 360d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 361d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 362d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 363d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 364d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 365d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 366d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 367d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 368d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes UniquePtr<char[]> mBuffer; 369d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 370d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 371d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 372d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 373d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 374553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { 375553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 376553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 377553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 378553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes int fd; 379553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 380553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; 381553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint clientFd = NET_FAILURE_RETRY("accept", accept(fd, peer, peerLength)); 382553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, &ss)) { 383553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 384553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 385553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 386553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 387553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 388553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 389ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 390ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 391ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 392ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 393ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 39447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 395dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 397dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 398ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 399ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 400ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 401da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 402da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes sockaddr_storage ss; 403da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 404da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes return; 405da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes } 406996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes int fd; 407da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 408996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NET_FAILURE_RETRY("bind", bind(fd, sa, sizeof(sockaddr_storage))); 409da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 410da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 411b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 412b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 413b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 414b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 415b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 416b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 417b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 418b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 419462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 420462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 421462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 422462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 423462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 424462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 425462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 426462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 427462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 428462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 429462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 430462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 431996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 432996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes sockaddr_storage ss; 433996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 434996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes return; 435996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } 436996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes int fd; 437996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 438996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NET_FAILURE_RETRY("connect", connect(fd, sa, sizeof(sockaddr_storage))); 439996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 440996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 441396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 442396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 443396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 444396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 445396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 446396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 447396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 448396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 449396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 450396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 451396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 452396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 453ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 454ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 455ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 456ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 457ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 458fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 459fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 460fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 461fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 462fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 463fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 464fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 465fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 466fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 467fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 468fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 469fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 470fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 471fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 472fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 473fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 474fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 475fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 476fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 477fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 478fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 479fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 480fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 481fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 482fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 483fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 484fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); 485fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 486fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 487fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 488fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 489fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 490fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 491fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 492fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 493fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 494fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 49552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 49652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 4977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 49852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 49952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 50047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 50147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 50247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 50347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 504dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 5057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 50647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 50747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 50847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 50947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 51047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 51159fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 51259fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 51359fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 51459fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 51559fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 51659fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 51759fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 51859fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 51959fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 52059fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 52159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 52252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 52352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5247e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 525f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 526f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 527f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 528f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5297e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 53052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 53152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 5324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 5334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 5344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 5354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 5361c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) { 5371c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 5381c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 5391c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5401c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5411c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5421c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 5431c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 5441c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 5451c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 5461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 5481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 5491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 5501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 5511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 5521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 5531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 5551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList); 5561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 5571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 5581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes throwGaiException(env, "getaddrinfo", rc); 5591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 5631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 5641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 5651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 5661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 5671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 5681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes LOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 5691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 5721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 5761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 5771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 5781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 5821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 5831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 5841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 5851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 5861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes LOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 5871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 5881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 5911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage* address = reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 59223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 5931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 5941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 5971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 5981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 6001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 6011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 602396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 603396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getegid(); 604396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 605396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 606396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 607396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return geteuid(); 608396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 609396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 610396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 611396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getgid(); 612396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 613396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 614ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 615ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 616ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 617ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 618ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 619ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 620ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 621ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 6224f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 6234f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 624da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes if (!inetAddressToSockaddr_getnameinfo(env, javaAddress, 0, &ss)) { 6254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 6264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 6274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // TODO: bionic's getnameinfo(3) seems to want its length parameter to be exactly 6284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // sizeof(sockaddr_in) for an IPv4 address and sizeof (sockaddr_in6) for an 6294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // IPv6 address. Fix getnameinfo so it accepts sizeof(sockaddr_storage), and 6304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // then remove this hack. 6314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes socklen_t size = (ss.ss_family == AF_INET) ? sizeof(sockaddr_in) : sizeof(sockaddr_in6); 6324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 6334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), size, buf, sizeof(buf), NULL, 0, flags); 6344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 6354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 6364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 6374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 6384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 6394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 6404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 641396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 642396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getpid(); 643396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 644396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 645396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 646396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getppid(); 647396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 648396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 649d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { 650d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 651d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 652d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 653d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 654d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 655d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 656d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 657d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { 658d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 659d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 660d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 6610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 6620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 6640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 6650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t byteCount = sizeof(ss); 6660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, byteCount); 6670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)); 6680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockname"); 6700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 6720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeSocketAddress(env, &ss); 6730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 6780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 6790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 6800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 6810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 6860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 6870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 6880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 6890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 6900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 6910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 6930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 69523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, &ss, NULL); 6960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 7010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 7020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 7030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 7040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 7090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 7100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 7110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 7120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 7160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 7170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 7220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 7230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 7240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 7250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 7290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 7300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 732396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 733396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getuid(); 734396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 735396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 736a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 737a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 738a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 739a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 740a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 741a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 742a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 743a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 7441c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobject Posix_inet_aton(JNIEnv* env, jobject, jstring javaName) { 7451c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 7461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 7471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 7501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 7511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_in* sin = reinterpret_cast<sockaddr_in*>(&ss); 7521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inet_aton(name.c_str(), &sin->sin_addr) == 0) { 7531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sin->sin_family = AF_INET; // inet_aton only supports IPv4. 75623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, &ss, NULL); 7571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 7581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 759a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 760a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 761a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 762a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 763a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 764a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 765a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 766a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 767a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 768a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 76923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage*>(&req.ifr_addr), NULL); 770a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 771a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 7728b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 7738b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 7748b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 775461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7768b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 7778b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 7788b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 7798b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 7808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 7818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 7828b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 783461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 784461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 7859a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 7869a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7879a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes return TEMP_FAILURE_RETRY(isatty(fd)) == 0; 7889a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 7899a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 790a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 791a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 792a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 793a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 794e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 795e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 796e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 797e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 798e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 799dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 800dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8017e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 802dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 803dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 80447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 80547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 80647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 80747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 8080f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 8090f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 8100f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 8110f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 8120f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 8130f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8140f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 8150f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 8160f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 8170f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 818c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 819c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 820c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 821c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 822c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 823c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 824c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 825c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 8267e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8277e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8287e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 8297e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 8307e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 8317e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 8327e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8337e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8347e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 8357e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 8367e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 8377e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 8387e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 8397e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8407e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8417e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 8427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 8447e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8457e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8467e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8477e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8487e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 8497e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 8507e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 8517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8527e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8537e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 8547e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8560ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 8570ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 8580ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 8590ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 8600ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 8610ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 8620ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 8630ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 8640ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 86541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 86641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 86741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 86841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 86941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 87041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 87141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 87241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 87341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 87441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 87541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 87641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 87741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 87841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 87941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 88041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 88141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 88241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 88341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 88441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 88570c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 88670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 88770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 88870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 88970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 89070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Turn the Java libcore.io.StructPollfd[] into a C++ struct pollfd[]. 89170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 89270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 89370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 89470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 89570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 89670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 89770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 89870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 89970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 90070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 90170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 90270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 90370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 90470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 90570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 90670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 90770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 90870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 90970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes int rc = TEMP_FAILURE_RETRY(poll(fds.get(), count, timeoutMs)); 91070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 91170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 91270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 91370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 91470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 91570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Update the revents fields in the Java libcore.io.StructPollfd[]. 91698b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 91770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 91898b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 91998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 92098b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 92170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 92270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 92370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 92470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 92570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 9260568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 9270568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 92826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 92926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 93026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 93126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9320568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); 93326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 93426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 935bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 9368dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 937bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 938bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 939bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 940bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 941bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); 942bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 943bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 94423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 94523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 94623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 94723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 94823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 94923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 95023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 95123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 95223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes int fd; 95323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 95423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 95523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jint recvCount = NET_FAILURE_RETRY("recvfrom", recvfrom(fd, bytes.get() + byteOffset, byteCount, flags, from, fromLength)); 956553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes fillInetSocketAddress(env, recvCount, javaInetSocketAddress, &ss); 95723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 95823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 95923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 960c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 961c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 962c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 963c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 964c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 965c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 966c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 967c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 968a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 969a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 970a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 971a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 972a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 973a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 974a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 975a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 976a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 977a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 978a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 979a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 9808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 9818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 9828b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 9838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 9848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 9858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 9868b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 9878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 9888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 9898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 9908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 9918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 9928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 9938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 9948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 9958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 9968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 9978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 99890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 99990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 100090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 100190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 100290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 100390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes sockaddr_storage ss; 100490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, &ss)) { 100590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 100690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 100790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes int fd; 100890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL; 100990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes socklen_t toLength = (javaInetAddress != NULL) ? sizeof(ss) : 0; 101090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return NET_FAILURE_RETRY("sendto", sendto(fd, bytes.get() + byteOffset, byteCount, flags, to, toLength)); 101190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 101290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 1013396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 1014396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 1015396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1016396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1017396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 1018396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 1019396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1020396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1021396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 1022396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 1023396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1024396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1025c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1026c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1027c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 1028c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 1029c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1030c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1031a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 1032a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1033a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1034b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 1035b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 1036b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1037b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1038b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1039b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1040454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1041454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1042454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1043454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1044454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 1045b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1046b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 1047b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 1048b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 1049b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1050b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1051b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1052b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1053438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 1054438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct group_req value; 1055438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1056438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 1057438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 1058438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 1059438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 1060e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 1061e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes if (!inetAddressToSockaddr(env, javaGroup.get(), 0, &value.gr_group)) { 1062438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 1063438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1064438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1065438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1066438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))); 1067438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 1068438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1069438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 1070438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes struct GCC_HIDDEN group_req64 { 1071438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 1072438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 1073438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 1074438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 1075438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes group_req64 value64; 1076438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes value64.gr_interface = value.gr_interface; 1077438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes memcpy(&value64.gr_group, &value.gr_group, sizeof(value.gr_group)); 1078438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value64, sizeof(value64))); 1079438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1080438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 1081438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 1082438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1083c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 1084c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 1085c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 1086c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1087c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 1088c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 1089c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 1090c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1091c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1092c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1093c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 1094c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 1095c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 1096c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1097c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 1098c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_sec = env->GetIntField(javaTimeval, tvSecFid); 1099c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.tv_usec = env->GetIntField(javaTimeval, tvUsecFid); 1100c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1101c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1102c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1103396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 1104396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 1105396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1106396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 110759e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 110859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 110959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 111059e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 111159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 1112454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 1113454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 1114454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 1115454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1116454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 111747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 111847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 111947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 112047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 11210ade5524d972b9dfd69b0126aa4c35319c1b7fa4Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jobject, jstring javaPath) { 112259fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 112359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 112459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 112559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 112659fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 112759fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 112859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 112959fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 113059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 113159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 113259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 113359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 113459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1135ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 113652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1137ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1138ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1139ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1140ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1141a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1142a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1143a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1144a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1145a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1146a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1147a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1148a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1149a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1150a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1151a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1152a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 11536fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 11546fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 11556fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 11566fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 11576fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 11587e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 11596fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 11606fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 11616fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 11626fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 11637341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 11647341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 11657341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes if (throwIfMinusOne(env, "uname", TEMP_FAILURE_RETRY(uname(&buf))) == -1) { 11667341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return NULL; 11677341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 11687341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 11697341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 11707341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 11710568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 11720568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 117378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 117478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 117578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 117678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11770568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); 117878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 117978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1180bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 11818dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1182bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1183bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1184bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1185bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1186bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); 1187bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1188bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1189ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1190553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), 1191ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 1192da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1193b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 1194462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1195996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1196396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1197396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1198ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 1199fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 1200fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 1201fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), 120252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 120347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 120459fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 120552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1206f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 12074f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 12081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Llibcore/io/StructAddrinfo;)[Ljava/net/InetAddress;"), 1209396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1210396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1211396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1212ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 12134f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1214396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1215396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 1216d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Llibcore/io/StructPasswd;"), 1217d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes NATIVE_METHOD(Posix, getpwuid, "(I)Llibcore/io/StructPasswd;"), 12180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 12190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 12200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 12210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 12220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructLinger;"), 12230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructTimeval;"), 1224396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1225a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 12261c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes NATIVE_METHOD(Posix, inet_aton, "(Ljava/lang/String;)Ljava/net/InetAddress;"), 1227a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 12288b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), 12299a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1230a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 1231e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1232dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 123347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 12340f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1235c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 12367e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 12377e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 12387e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 12397e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 12407e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 12410ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 124241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 124370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes NATIVE_METHOD(Posix, poll, "([Llibcore/io/StructPollfd;I)I"), 12440568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1245bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 124623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 1247c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1248a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 12498b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), 125090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 1251396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1252396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1253396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 1254c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1255b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1256454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1257b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 1258438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILlibcore/io/StructGroupReq;)V"), 1259c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILlibcore/io/StructLinger;)V"), 1260c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILlibcore/io/StructTimeval;)V"), 1261396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 126259e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1263454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 126447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 126559fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 1266ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1267a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 12686fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 12697341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 12700568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1271bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1272ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 1273ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesint register_libcore_io_Posix(JNIEnv* env) { 1274ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1275ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1276