libcore_io_Linux.cpp revision 039f7599559fd7e48c354b99dcb94ff391f53349
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> 549e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h> 55bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h> 560ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 57ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 58d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 59d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 60d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (NAME == NULL) return NULL; 61d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 70996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 711124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes * Used to retry networking system calls that can return EINTR. Unlike TEMP_FAILURE_RETRY, 721124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes * this also handles the case where the reason for failure is that another thread called 731124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes * Socket.close. This macro also throws exceptions on failure. 74996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 75996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * Returns the result of 'exp', though a Java exception will be pending if the result is -1. 76996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 771124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 781124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 79996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 80996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 811124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 821124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes AsynchronousSocketCloseMonitor _monitor(_fd); \ 831124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 84996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 85996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (_rc == -1) { \ 861124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes if (jniGetFDFromFileDescriptor(jni_env, java_fd) == -1) { \ 871124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 88996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 89996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } else if (errno != EINTR) { \ 901124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 911124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes throwErrnoException(jni_env, # syscall_name); \ 92996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 93996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 94996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 95996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } while (_rc == -1); \ 96996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 97996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 984f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 994f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 100ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 101ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 102ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 103ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 104ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 105ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1064f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 1074f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 108f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 109f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 110f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 111f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 112f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 113ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 114ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 1154f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 116ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 1174f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 118ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 119ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 120dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 121dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 1224f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 1234f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 1244f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 1254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 1274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 1294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 1314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 13275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes if (errno != 0) { 13375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 13475cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 13575cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 13675cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 13775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 1384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 1394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 1404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 1414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, 1424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, 1444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 1464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 148dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 1497e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 150dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 1517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 152dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 153dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 15447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 15547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1568dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 157bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 158bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 159bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 160bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 161bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 162bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 163bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 164bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 165bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 166bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 167bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 168bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 169bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 170bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 171bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 172bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 173bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 174bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 175bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 176d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 177bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 178e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 1798dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 1808dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 181bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 182bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 183bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 184bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 185bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 186bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 187bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 188bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 189bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 190bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 191bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 192bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 1938dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 1948dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 195bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 196bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 197bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 198bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 199bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 200bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 201bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 202bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 203bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 204bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 205bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 206bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 207bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 208bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 209bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 210bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 2118dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 212bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 213bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 21423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage* ss) { 21523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes // TODO: support AF_UNIX and AF_UNSPEC (and other families?) 21623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jint port; 21723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 2180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 2190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 2220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 2230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 2240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 226d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 227d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 228d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 229d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 230d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 231d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 232d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 233d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 234d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 235d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 23647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 23747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 23847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 23947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 24059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 24159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 24259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 24359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 24459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 24559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 24659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 24759fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 24859fa7163774d6930a174bc038414a4b780581957Elliott Hughes 24959fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { 25059fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); 25159fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); 25259fa7163774d6930a174bc038414a4b780581957Elliott Hughes STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); 25359fa7163774d6930a174bc038414a4b780581957Elliott Hughes 25459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", 25559fa7163774d6930a174bc038414a4b780581957Elliott Hughes "(JJJJJJJJ)V"); 25659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), 25759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), 25859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), 25959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), 26059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.f_frsize)); 26147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 26247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 2640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 2650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 2660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 2690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 2700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 2710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 2720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 2747341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 275d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 276d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 277d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 278d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 279d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 2807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 2817341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 2827341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 2837341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 2847341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 2857341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 286a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 287a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 288a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 289a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 290a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 291a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 292a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 293a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 294a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 295a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 296a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 297553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage* ss) { 298553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (rc == -1 || javaInetSocketAddress == NULL) { 299553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 300553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 301553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 302553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 303553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 304553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 305553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 306553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 307553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 308553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 309553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetObjectField(javaInetSocketAddress, addressFid, sender); 310553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetIntField(javaInetSocketAddress, portFid, port); 311553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 312553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 313553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 31447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 31547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 31647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 31747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 31847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 31947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 32047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 32147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 322dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3237e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 32447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 32547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 32647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 327ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 328ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 329d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 330d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 331d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 332d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 333d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mBufferSize == -1UL) { 334d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // We're probably on bionic, where 1KiB should be enough for anyone. 335d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: fix bionic to return 1024 like glibc. 336d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = 1024; 337d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 338d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 339d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 340d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 341d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 342d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 343d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 344d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 345d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 346d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 347d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 348d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 349d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 350d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 351d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 352d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 353d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 354d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 355d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 356d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 357d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 358d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 359d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 360d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 361d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 362d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 363d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 364d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes UniquePtr<char[]> mBuffer; 365d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 366d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 367d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 368d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 369d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 370553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { 371553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 372553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 373553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 374553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 375553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; 3761124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 377553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, &ss)) { 378553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 379553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 380553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 381553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 382553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 383553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 384ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 385ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 386ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 387ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 388ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 38947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 390dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3917e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 392dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 393ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 394ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 395ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 396da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 397da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes sockaddr_storage ss; 398da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 399da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes return; 400da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes } 401da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 4021124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 4031124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sizeof(sockaddr_storage)); 404da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 405da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 406b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 407b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 408b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 409b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 410b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 411b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 412b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 413b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 41444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 41544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 41644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 41744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 41844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 41944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 42044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 42144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 422462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 423462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 424462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 425462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 426462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 427462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 428462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 429462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 430462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 431462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 432462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 433462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 434996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 435996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes sockaddr_storage ss; 436996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { 437996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes return; 438996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } 439996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 4401124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 4411124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sizeof(sockaddr_storage)); 442996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 443996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 444396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 445396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 446396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 447396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 448396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 449396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 450396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 451396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 452396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 453396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 454396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 455396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 456ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 457ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 458ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 459ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 460ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 46144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 46244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 46344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 46444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 46544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 46644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 46744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 46844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 46944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 47044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 471fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 472fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 473fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 474fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 475fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 476fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 477fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 478fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 479fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 480fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 481fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 482fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 483fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 484fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 485fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 486fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 487fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 488fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 489fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 490fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 491fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 492fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 493fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 494fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 495fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 496fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 497fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); 498fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 499fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 500fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 501fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 502fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 503fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 504fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 505fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 506fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 507fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 50852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 50952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 51152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 51252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 51347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 51447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 51547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 51647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 517dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 5187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 51947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 52047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 52147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 52247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 52347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 52459fa7163774d6930a174bc038414a4b780581957Elliott Hughesstatic jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { 52559fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 52659fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 52759fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); 52859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 52959fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "fstatfs"); 53059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 53159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 53259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 53359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 53459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 53552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 53652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5377e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 538f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 539f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 540f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 541f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 5427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 54352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 54452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 5454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 5464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 5474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 5484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 5491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) { 5501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 5511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 5521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 5561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 5571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 5581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 5591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 5611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 5621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 5631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 5641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 5651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 5661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 56875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 5691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList); 5701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 5711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 5721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes throwGaiException(env, "getaddrinfo", rc); 5731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 5771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 5781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 5791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 5801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 5811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 582679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 5831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 5861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 5901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 5911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 5921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 5931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 5941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 5951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 5961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 5971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 5981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 5991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 600679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 6011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 6021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 6051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage* address = reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 60623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 6071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 6081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 6111c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 6121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 6141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 6151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 616396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 617396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getegid(); 618396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 619396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 620396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 621396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return geteuid(); 622396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 623396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 624396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 625396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getgid(); 626396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 627396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 628ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 629ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 630ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 631ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 632ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 633ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 634ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 635ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 6364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 6374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 6388ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, &ss)) { 6394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 6404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 6414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // TODO: bionic's getnameinfo(3) seems to want its length parameter to be exactly 6424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // sizeof(sockaddr_in) for an IPv4 address and sizeof (sockaddr_in6) for an 6434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // IPv6 address. Fix getnameinfo so it accepts sizeof(sockaddr_storage), and 6444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // then remove this hack. 6454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes socklen_t size = (ss.ss_family == AF_INET) ? sizeof(sockaddr_in) : sizeof(sockaddr_in6); 6464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 64775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 6484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), size, buf, sizeof(buf), NULL, 0, flags); 6494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 6504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 6514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 6524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 6534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 6544f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 6554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 656396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 657396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getpid(); 658396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 659396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 660396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 661396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getppid(); 662396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 663396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 664d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { 665d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 666d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 667d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 668d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 669d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 670d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 671d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 672d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { 673d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 674d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 675d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 6760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 6770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 6790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 6800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t byteCount = sizeof(ss); 6810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, byteCount); 6820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)); 6830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 6840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockname"); 6850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 6860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 6870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeSocketAddress(env, &ss); 6880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 6930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 6940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 6950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 6960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 6970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 6980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 6990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 7010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 7020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 7030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 7040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 7050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 7060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 71023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, &ss, NULL); 7110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 7160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 7170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 7180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 7190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 7240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 7250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 7260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 7270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 7310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 7320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 7370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 7380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 7390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 7400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 7440a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 7450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7460a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 747396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 748396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getuid(); 749396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 750396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 751a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 752a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 753a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 754a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 755a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 756a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 757a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 758a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 759fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 7601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 7611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 7621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 7651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 766fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 767fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 768fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 7691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 771fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 77223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, &ss, NULL); 7731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 7741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 775a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 776a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 777a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 778a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 779a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 780a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 781a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 782a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 783a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 784a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 78523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage*>(&req.ifr_addr), NULL); 786a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 787a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 7888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 7898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 7908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 791461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 7938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 7948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 7958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 7968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 7978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 7988b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 799461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 800461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 8019a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 8029a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 803bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 8049a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 8059a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 806a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 807a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 808a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 809a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 81044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 81144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 81244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 81344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 81444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 81544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 81644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 81744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 818e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 819e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 820e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 821e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 822e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 823dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 824dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8257e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 826dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 827dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 82847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 82947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 83047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 83147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 8320f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 8330f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 8340f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 8350f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 8360f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 8370f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8380f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 8390f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 8400f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 8410f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 842c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 843c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 844c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 845c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 846c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 847c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 848c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 849c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 8507e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8517e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8527e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 8537e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 8547e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 8557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 8567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8577e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8587e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 8597e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 8607e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 8617e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 8627e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 8637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8647e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8657e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 8667e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8677e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 8687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8707e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8717e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8727e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 8737e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 8747e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 8757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 8767e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 8777e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 8787e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 8797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 8800ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 8810ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 8820ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 8830ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 8840ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 8850ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 8860ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 8870ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 8880ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 88941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 89041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 89141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 89241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 89341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 89441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 89541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 89641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 89741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 89841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 89941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 90041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 90141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 90241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 90341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 90441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 90541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 90641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 90741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 90841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 90970c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 91070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 91170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 91270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 91370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 91470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Turn the Java libcore.io.StructPollfd[] into a C++ struct pollfd[]. 91570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 91670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 91770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 91870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 91970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 92070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 92170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 92270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 92370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 92470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 92570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 92670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 92770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 92870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 92970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 93070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 93170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 93270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 933796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes // Since we don't know which fds -- if any -- are sockets, be conservative and register 934796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes // all fds for asynchronous socket close monitoring. 935796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes std::vector<AsynchronousSocketCloseMonitor*> monitors; 936796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 937796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes monitors.push_back(new AsynchronousSocketCloseMonitor(fds[i].fd)); 938796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 939796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes int rc = poll(fds.get(), count, timeoutMs); 940796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 941796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 942796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 94370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 94470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 94570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 94670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 94770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 94870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes // Update the revents fields in the Java libcore.io.StructPollfd[]. 94998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 95070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 95198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 95298b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 95398b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 95470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 95570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 95670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 95770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 95870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 959e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 960e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 961e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 962e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 963e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 964e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 965e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return throwIfMinusOne(env, "pread", TEMP_FAILURE_RETRY(pread64(fd, bytes.get() + byteOffset, byteCount, offset))); 966e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 967e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 968e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 969e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 970e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 971e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 972e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 973e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 974e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return throwIfMinusOne(env, "pwrite", TEMP_FAILURE_RETRY(pwrite64(fd, bytes.get() + byteOffset, byteCount, offset))); 975e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 976e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 9770568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 9780568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 97926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 98026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 98126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 98226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9830568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); 98426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 98526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 986bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 9878dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 988bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 989bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 990bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 991bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 992bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); 993bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 994bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 99523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 99623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 99723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 99823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 99923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 100023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 100123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 100223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 100323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 100423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 10051124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 1006553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes fillInetSocketAddress(env, recvCount, javaInetSocketAddress, &ss); 100723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 100823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 100923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 1010c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 1011c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1012c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1013c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1014c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1015c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 1016c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1017c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 1018a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1019a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1020a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1021a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1022a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1023a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1024a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1025a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1026a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1027a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 1028a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1029a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 10308b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 10318b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 10328b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 10338b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 10348b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 10358b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 10368b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 10378b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 10388b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 10398b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 10408b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 10418b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 10428b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 10438b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 10448b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 10458b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 10468b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 10478b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 104890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 104990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 105090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 105190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 105290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 105390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes sockaddr_storage ss; 105490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, &ss)) { 105590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 105690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 105790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL; 105890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes socklen_t toLength = (javaInetAddress != NULL) ? sizeof(ss) : 0; 10591124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, to, toLength); 106090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 106190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 1062396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 1063396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 1064396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1065396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1066895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 1067895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1068895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1069895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1070895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1071895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 1072895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 1073895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1074895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1075895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 1076895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1077895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 1078396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 1079396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 1080396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1081396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1082396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 1083396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 1084396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1085396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 10866c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) { 10876c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 10886c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 10896c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 1090c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1091c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1092c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 1093c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 1094c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1095c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1096a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 1097a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1098a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1099b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 1100b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 1101b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1102b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1103b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1104b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1105454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1106454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1107454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1108454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1109454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 1110b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1111b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 1112b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 1113b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 1114b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1115b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1116b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1117b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1118438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 11198ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 11208ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 1121438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1122438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 11238ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 1124438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 1125438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 1126e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 11278ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, &req.gr_group)) { 1128438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 1129438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1130438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1131438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11328ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1133438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 1134438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1135438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 11369634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 1137438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 1138438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 1139438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 1140438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 11418ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 11428ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 11438ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 11448ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1145438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1146438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 1147438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 1148438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1149c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 1150c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 1151c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 1152c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1153c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 1154c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 1155c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 1156c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1157c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1158c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1159c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 1160c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 1161c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 1162c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1163c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 116439fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 116539fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 1166c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1167c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1168c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1169396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 1170396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 1171396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1172396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 117359e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 117459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 117559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 117659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 117759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 1178454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 1179454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 1180454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 1181454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1182454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 11833218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 11843218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 11853218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 11863218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 11873218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 11883218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 11893218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 11903218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 11913218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 119247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 119347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 119447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 119547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 11960ade5524d972b9dfd69b0126aa4c35319c1b7fa4Elliott Hughesstatic jobject Posix_statfs(JNIEnv* env, jobject, jstring javaPath) { 119759fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 119859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 119959fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 120059fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 120159fa7163774d6930a174bc038414a4b780581957Elliott Hughes struct statfs sb; 120259fa7163774d6930a174bc038414a4b780581957Elliott Hughes int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); 120359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 120459fa7163774d6930a174bc038414a4b780581957Elliott Hughes throwErrnoException(env, "statfs"); 120559fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 120659fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 120759fa7163774d6930a174bc038414a4b780581957Elliott Hughes return makeStructStatFs(env, sb); 120859fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 120959fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1210ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 121152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1212ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1213ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1214ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1215ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1216a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1217a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1218a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1219a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1220a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1221a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1222a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1223a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1224a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1225a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1226a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1227a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 12286fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 12296fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 12306fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 12316fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 12326fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 12337e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 12346fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 12356fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 12366fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 12376fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 1238bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 1239bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 1240bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 1241bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 1242bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 1243039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 1244039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1245039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 1246039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 1247039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 1248c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) { 124944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 125044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 125144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 12527341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 12537341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 12549b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 12559b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 12567341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 12577341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 12587341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 12597341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1260895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) { 1261895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1262895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1263895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1264895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1265895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 1266895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1267895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 12689e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 12699e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 12709e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 12719e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes if (rc != -1) { 12729e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 12739e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes env->SetIntField(javaStatus, valueFid, status); 12749e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 12759e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 12769e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 12779e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 12780568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 12790568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 128078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 128178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 128278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 128378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 12840568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); 128578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 128678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1287bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 12888dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1289bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1290bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1291bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1292bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1293bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); 1294bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1295bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1296ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1297553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), 1298ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 1299da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1300b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 130144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"), 1302462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1303996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1304396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1305396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1306ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 130744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"), 130844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"), 1309fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 1310fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 1311fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), 131252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 131347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), 131459fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), 131552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1316f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 13174f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 13181c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Llibcore/io/StructAddrinfo;)[Ljava/net/InetAddress;"), 1319396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1320396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1321396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1322ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 13234f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1324396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1325396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 1326d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Llibcore/io/StructPasswd;"), 1327d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes NATIVE_METHOD(Posix, getpwuid, "(I)Llibcore/io/StructPasswd;"), 13280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 13290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 13300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 13310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 13320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructLinger;"), 13330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructTimeval;"), 1334396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1335a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 1336fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 1337a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 13388b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), 13399a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1340a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 134144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"), 1342e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1343dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 134447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 13450f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1346c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 13477e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 13487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 13497e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 13507e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 13517e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 13520ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 135341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 135470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes NATIVE_METHOD(Posix, poll, "([Llibcore/io/StructPollfd;I)I"), 1355e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 1356e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 13570568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1358bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 135923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 1360c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1361a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 13628b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), 136390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 1364396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1365895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 1366396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1367396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 13686c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes NATIVE_METHOD(Posix, setsid, "()I"), 1369c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1370b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1371454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1372b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 1373438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILlibcore/io/StructGroupReq;)V"), 1374c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILlibcore/io/StructLinger;)V"), 1375c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILlibcore/io/StructTimeval;)V"), 1376396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 137759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1378454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 13793218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 138047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), 138159fa7163774d6930a174bc038414a4b780581957Elliott Hughes NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), 1382ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1383a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 13846fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 1385bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"), 1386039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 1387c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich NATIVE_METHOD(Posix, umaskImpl, "(I)I"), 13887341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), 1389895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"), 13909e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes NATIVE_METHOD(Posix, waitpid, "(ILlibcore/util/MutableInt;I)I"), 13910568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1392bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1393ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 13947cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) { 13957cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1396ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1397