libcore_io_Linux.cpp revision 8add3229ceb13f2aa5d15b84cc59f5ecc6b90214
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 19f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#include "AsynchronousCloseMonitor.h" 2015c1945bb1810d061ea2d5b07a11e3ecc5ec8536Ruben Brunk#include "cutils/log.h" 21ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes#include "ExecStrings.h" 22ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JNIHelp.h" 23ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JniConstants.h" 24ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "JniException.h" 250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include "NetworkUtilities.h" 266c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#include "Portability.h" 270b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes#include "readlink.h" 280568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes#include "ScopedBytes.h" 29e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes#include "ScopedLocalRef.h" 300f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 32ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h" 330b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes#include "UniquePtr.h" 34ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 351c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h> 36ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 370ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 38b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h> 394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h> 400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h> 4170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h> 42d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h> 43a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h> 44ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 45461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 475215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h> 4859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 4947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 50069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h> 510a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 520ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 53bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 559e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h> 56bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h> 570ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 58ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 59d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 60d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 61d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (NAME == NULL) return NULL; 62d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 71996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 72f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike 73f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where 74f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or 75f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call 76f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried. 77996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 78f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 79f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other 80f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures. 81996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 821124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 831124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 84996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 85f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 86f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _syscallErrno; \ 87996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 881124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 89f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 901124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 91f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 92f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 93996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 94f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 95f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 965d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 97f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 98f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 99f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 100f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 101f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 102f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 103f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 104f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ 105f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc; }) 106f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 107f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/** 108f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this 109f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal 110f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the 111f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried. 112f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * 113f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 114f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled 115f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures. 116f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */ 117f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 118f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return_type _rc = -1; \ 119f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 120f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_fd == -1) { \ 121f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/io/IOException", "File descriptor closed"); \ 122f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } else { \ 123f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller do { \ 124f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 125f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _syscallErrno; \ 126f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller { \ 127f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 128f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 129f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc = syscall_name(_fd, __VA_ARGS__); \ 130f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 131f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 132f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 133f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 134f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ 1355d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 136996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 137f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 138f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 1391124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 1401124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes throwErrnoException(jni_env, # syscall_name); \ 141996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes break; \ 142996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 143f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ 144f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 145996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 146996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 1474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 1484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 149ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 150ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 151ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 152ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 153ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 154ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 1564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 157f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 158f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 159f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 160f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 161f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 162ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 163ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 1644f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 165ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 1664f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 167ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 168ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 169dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 170dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 1714f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 1724f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 1734f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 1744f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1754f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 1764f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1774f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 1784f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1794f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 1804f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 181c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. 182c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 183c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 184c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 185c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;I)V"); 186c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes if (errno != 0) { 18775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 18875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 18975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 19075cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 19175cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 1924f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 1934f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 1944f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 1954f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 1964f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1974f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 198dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 1997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 200dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 2017e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 202dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 203dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 20447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 20547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2068dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 207bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 208bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 209bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 210bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 211bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 212bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 213bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 214bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 215bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 216bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 217bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 218bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 219bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 220bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 221bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 222bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 223bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 224bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 225bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 226d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 227bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 228e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 2298dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 2308dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 231bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 232bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 233bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 234bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 235bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 236bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 237bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 238bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 239bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 240bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 241bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 242bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 2438dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 2448dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 245bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 246bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 247bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 248bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 249bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 250bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 251bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 252bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 253bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 254bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 255bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 256bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 257bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 258bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 259bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 260bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 2618dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 262bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 263bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 264482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss) { 26523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jint port; 26623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 2670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 2680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 2710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 2720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 2730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 275d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 276d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 277d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 278d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 279d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 280d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 281d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 282d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 283d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 284d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 28547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 28647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 28747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 28847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 28959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 29059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 29159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 29259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 29359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 29459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 29559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 29659fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 29759fa7163774d6930a174bc038414a4b780581957Elliott Hughes 298721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { 2996c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) 3006c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes // Mac OS has no f_namelen field in struct statfs. 3016c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes jlong max_name_length = 255; // __DARWIN_MAXNAMLEN 3026c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 303721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes jlong max_name_length = static_cast<jlong>(sb.f_namemax); 3046c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 3056c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes 306721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", 307721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes "(JJJJJJJJJJJ)V"); 308721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return env->NewObject(JniConstants::structStatVfsClass, ctor, 309721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bsize), 310721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_frsize), 311721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_blocks), 312721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bfree), 313721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bavail), 314721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_files), 315721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_ffree), 316721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_favail), 317721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_fsid), 318721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_flag), 319721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes max_name_length); 32047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 32147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 3220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 3230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 3240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 3250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 3280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 3290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 3300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 3310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 333482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u) { 334482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); 335482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); 336482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 337482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 3387341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 339d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 340d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 341d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 342d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 343d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 3447341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 3457341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 3467341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 3477341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 3487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 3497341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 350a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 351a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 352a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 353a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 354a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 355a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 356a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 357a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 358a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 359a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 360a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 361482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage& ss) { 362553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (rc == -1 || javaInetSocketAddress == NULL) { 363553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 364553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 365553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 366553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 367553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 368553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 369553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 370553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 371553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 372553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 373553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetObjectField(javaInetSocketAddress, addressFid, sender); 374553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetIntField(javaInetSocketAddress, portFid, port); 375553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 376553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 377553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 37847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 37947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 38047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 38147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 38247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 38347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 38447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 38547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 386dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3877e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 38847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 38947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 39047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 391ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 392ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 393482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { 394482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 395482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage ss; 396482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 397482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t byteCount = sizeof(ss); 398482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&ss, 0, byteCount); 399482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) 400482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); 401482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 402482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); 403482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 404482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 405482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeSocketAddress(env, ss); 406482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 407482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 408d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 409d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 410d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 411d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 412d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 413d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 414d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 415d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 416d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 417d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 418d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 419d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 420d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 421d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 422d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 423d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 424d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 425d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 426d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 427d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 428d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 429d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 430d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 431d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 432d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 433d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 434d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 435d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 436d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 437d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 438d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes UniquePtr<char[]> mBuffer; 439d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 440d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 441d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 442d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 443d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 444553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { 445553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 446553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 447553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 448553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 449553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; 4501124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 451482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, ss)) { 452553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 453553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 454553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 455553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 456553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 457553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 458ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 459ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 460ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 461ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 462ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 46347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 464dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 4657e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 466dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 467ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 468ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 469ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 470da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 471da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes sockaddr_storage ss; 472482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 473482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) { 474da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes return; 475da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes } 476da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 4771124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 478482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); 479da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 480da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 481b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 482b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 483b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 484b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 485b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 486b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 487b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 488b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 48944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 49044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 49144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 49244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 49344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 49444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 49544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 49644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 497462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 498462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 499462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 500462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 501462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 502462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 503462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 504462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 505462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 506462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 507462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 508462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 509996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 510996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes sockaddr_storage ss; 511482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 512482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) { 513996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes return; 514996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } 515996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 5161124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 517482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); 518996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 519996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 520396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 521396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 522396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 523396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 524396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 525396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 526396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 527396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 528396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 529396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 530396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 531396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 532ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 533ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 534ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 535ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 536ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 537798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { 538798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 539798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 540798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 541798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 542798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 543ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 544ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings envp(env, javaEnvp); 545ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes execve(path.c_str(), argv.get(), envp.get()); 546798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 547798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execve"); 548798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 549798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 550798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { 551798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 552798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 553798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 554798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 555798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 556ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 557ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes execv(path.c_str(), argv.get()); 558798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 559798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execv"); 560798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 561798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 56244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 56344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 56444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 56544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 56644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 56744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 56844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 56944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 57044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 57144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 572fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 573fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 574fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 575fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 576fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 577fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 578fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 579fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 580fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 581fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 582fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 583fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 584fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 585fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 586fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 587fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 588fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 589fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 590fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 591fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 592fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 593fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 594fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 595fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 596fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 5978add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); 598fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 599fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 600fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 601fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 602fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 603fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 604fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 605fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 606fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 607fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 60852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 60952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 61152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 61252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 61347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 61447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 61547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 61647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 617dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 6187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 61947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 62047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 62147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 62247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 62347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 624721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { 62559fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 626721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 627721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); 62859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 629721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "fstatvfs"); 63059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 63159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 632721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 63359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 63459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 63552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 63652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6377e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 638f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 639f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 640f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 641f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 64352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 64452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 6454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 6464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 6474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 6484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 6491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) { 6501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 6511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 6521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 6561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 6571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 6581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 6591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 6611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 6621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 6631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 6641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 6651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 6661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 66875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 6691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList); 6701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 6711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 6721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes throwGaiException(env, "getaddrinfo", rc); 6731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 6771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 6781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 6791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 6801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 6811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 682679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 6831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 6861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 6901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 6911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 6921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 6961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 6971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 6981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 6991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 700679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); 7011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 7021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 7041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 705482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 70623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 7071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 7081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 7111c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 7121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 7141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 7151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 716396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 717396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getegid(); 718396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 719396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 720396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 721396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return geteuid(); 722396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 723396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 724396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 725396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getgid(); 726396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 727396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 728ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 729ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 730ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 731ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 732ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 733ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 734ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 735ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 7364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 7374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 738482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 739482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { 7404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 7414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 7424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 74375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 744482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); 7454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 7464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 7474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 7484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 7494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 7504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 7514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 752482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) { 753482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, false); 754482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 755482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 756396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 757396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getpid(); 758396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 759396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 760396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 761396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getppid(); 762396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 763396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 764d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { 765d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 766d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 767d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 768d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 769d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 770d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 771d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 772d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { 773d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 774d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 775d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 7760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 777482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, true); 7780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 7830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 7840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 7850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 7860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 7910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 7920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 7930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 7940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 7950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 7960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 7970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 7980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 7990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 800482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 8010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 8060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 8070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 8080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 8090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 8140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 8150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 8160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 8170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 8180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 8190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 8200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 8210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 8220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 8270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 8280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 8290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 8300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 8310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 8320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 8330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 8340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 8350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 837482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 838482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 839482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes struct ucred u; 840482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t size = sizeof(u); 841482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&u, 0, size); 842482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); 843482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 844482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, "getsockopt"); 845482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 846482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 847482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeStructUcred(env, u); 848482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 849482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 850069525a39125c203b658c805685b6045a7d4dfebElliott Hughesstatic jint Posix_gettid(JNIEnv*, jobject) { 851069525a39125c203b658c805685b6045a7d4dfebElliott Hughes // Neither bionic nor glibc exposes gettid(2). 852069525a39125c203b658c805685b6045a7d4dfebElliott Hughes return syscall(__NR_gettid); 853069525a39125c203b658c805685b6045a7d4dfebElliott Hughes} 854069525a39125c203b658c805685b6045a7d4dfebElliott Hughes 855396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 856396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getuid(); 857396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 858396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 859a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 860a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 861a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 862a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 863a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 864a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 865a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 866a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 867fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 8681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 8691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 8701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 8731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 874fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 875fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 876fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 8771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 879fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 880482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 8811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 8821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 883a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 884a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 885a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 886a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 887a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 888a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 889a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 890a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 891a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 892a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 893482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); 894a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 895a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 8968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 8978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 8988b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 899461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9008b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 9018b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 9028b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 9038b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 9048b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 9058b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 9068b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 907461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 908461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 9099a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 9109a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 911bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 9129a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 9139a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 914a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 915a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 916a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 917a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 91844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 91944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 92044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 92144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 92244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 92344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 92444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 92544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 92604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughesstatic void Posix_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 92704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 92804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (oldPath.c_str() == NULL) { 92904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 93004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 93104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 93204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (newPath.c_str() == NULL) { 93304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 93404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 93504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); 93604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes} 93704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes 938e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 939e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 940e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 941e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 942e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 943dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 944dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9457e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 946dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 947dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 94847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 94947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 95047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 95147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 9520f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 9530f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 9540f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 9550f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 9560f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 9570f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 9580f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 9590f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 9600f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 9610f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 962c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 963c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 964c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 965c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 966c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 967c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 968c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 969c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 970f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerstatic void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { 971f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller ScopedUtfChars path(env, javaPath); 972f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (path.c_str() == NULL) { 973f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return; 974f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } 975f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); 976f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller} 977f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 9787e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 9797e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 9807e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 9817e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 9827e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 9837e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 9847e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9857e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 9867e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 9877e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 9887e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 9897e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 9907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 9917e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 9927e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 9937e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 9947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 9957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 9967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 9977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 9987e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 9997e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10007e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 10017e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 10027e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 10037e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 10047e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 10067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 10077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 10080ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 10090ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 10100ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 10110ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 10120ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 10130ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 10140ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 10150ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 10160ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 101741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 101841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 101941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 102041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 102141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 102241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 102341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 102441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 102541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 102641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 102741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 102841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 102941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 103041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 103141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 103241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 103341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 103441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 103541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 103641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 103770c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 103870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 103970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 104070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 104170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 10425d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. 104370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 104470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 104570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 104670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 104770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 104870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 104970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 105070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 105170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 105270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 105370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 105470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 105570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 105670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 105770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 105870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 105970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 106070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 1061f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller std::vector<AsynchronousCloseMonitor*> monitors; 1062796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 1063f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); 1064796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 1065796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes int rc = poll(fds.get(), count, timeoutMs); 1066796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 1067796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 1068796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 106970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 107070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 107170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 107270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 107370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 10745d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Update the revents fields in the Java android.system.StructPollfd[]. 107598b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 107670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 107798b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 107898b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 107998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 108070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 108170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 108270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 108370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 108470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 108511f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughesstatic void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd, jlong offset, jlong length) { 108611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 108711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes errno = TEMP_FAILURE_RETRY(posix_fallocate64(fd, offset, length)); 108811f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes if (errno != 0) { 108911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes throwErrnoException(env, "posix_fallocate"); 109011f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes } 109111f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes} 109211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes 10935215e4c0db7530519981f1e505e6db82401802f2Nick Kralevichstatic jint Posix_prctl(JNIEnv* env, jobject, jint option, jlong arg2, jlong arg3, jlong arg4, jlong arg5) { 10945215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich int result = prctl(static_cast<int>(option), 10955215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich static_cast<unsigned long>(arg2), static_cast<unsigned long>(arg3), 10965215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich static_cast<unsigned long>(arg4), static_cast<unsigned long>(arg5)); 10975215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich return throwIfMinusOne(env, "prctl", result); 10985215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich} 10995215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich 1100e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1101e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 1102e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1103e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1104e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1105f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1106e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1107e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 1108e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1109e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 1110e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1111e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1112e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1113f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1114e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1115e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 11160568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 11170568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 111826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 111926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 112026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 1121f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); 112226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 112326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 11240b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughesstatic jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) { 11250b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes ScopedUtfChars path(env, javaPath); 11260b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (path.c_str() == NULL) { 11270b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 11280b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 11290b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 11300b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes std::string result; 11310b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (!readlink(path.c_str(), result)) { 11320b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes throwErrnoException(env, "readlink"); 11330b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 11340b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 11350b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return env->NewStringUTF(result.c_str()); 11360b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes} 11370b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 1138bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 11398dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 1140bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1141bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1142bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1143f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); 1144bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1145bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 114623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 114723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 114823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 114923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 115023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 115123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 115223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 115323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 115423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 115523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 11561124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 1157482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes fillInetSocketAddress(env, recvCount, javaInetSocketAddress, ss); 115823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 115923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 116023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 1161c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 1162c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1163c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1164c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1165c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1166c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 1167c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1168c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 1169a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1170a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1171a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1172a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1173a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1174a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1175a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1176a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1177a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1178a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 1179a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1180a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 11818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 11828b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 11838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 11848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 11858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 11868b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 11878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 11888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 11898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 11908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 11918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 11928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 11938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 11948b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 11958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 11968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 11978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 11988b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 119990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 120090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 120190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 120290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 120390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 120490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes sockaddr_storage ss; 1205482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len = 0; 1206482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len)) { 120790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 120890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 120990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL; 1210482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, to, sa_len); 121190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 121290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 1213396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 1214396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 1215396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1216396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1217895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 1218895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1219895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1220895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1221895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1222895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 1223895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 1224895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1225895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1226895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 1227895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1228895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 1229396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 1230396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 1231396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1232396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1233396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 1234396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 1235396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1236396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 12376c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) { 12386c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 12396c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 12406c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 1241c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1242c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1243c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 1244c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 1245c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1246c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1247a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 1248a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1249a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1250b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 1251b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 1252b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1253b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1254b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1255b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1256454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1257454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1258454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1259454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1260454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 12616c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1070 12626c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes// Mac OS didn't support modern multicast APIs until 10.7. 12636c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv*, jobject, jobject, jint, jint, jint) { abort(); } 12646c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 1265df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 12666c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 1267b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1268b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 1269b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 1270b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 1271b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1272b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1273b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1274b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1275438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 12768ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 12778ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 1278438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1279438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 12808ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 1281438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 1282438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 1283e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 1284482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 1285482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { 1286438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 1287438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1288438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1289438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 12908ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1291438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 1292438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1293438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 1294df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 12959634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 1296438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 1297438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 1298438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 1299438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 13008ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 13018ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 13028ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 13038ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1304438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1305438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 1306438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 1307df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1308df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) { 1309df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller socklen_t sa_len; 1310df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req req; 1311df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memset(&req, 0, sizeof(req)); 1312df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1313df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I"); 1314df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid); 1315df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to join or leave. 1316df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;"); 1317df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid)); 1318df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) { 1319df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1320df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1321df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1322df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to add to the filter. 1323df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;"); 1324df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid)); 1325df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) { 1326df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1327df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1328df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1329df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int fd = jniGetFDFromFileDescriptor(env, javaFd); 1330df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1331df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (rc == -1 && errno == EINVAL) { 1332df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1333df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // glibc doesn't automatically handle this. 1334df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 1335df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req64 { 1336df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t gsr_interface; 1337df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t my_padding; 1338df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_group; 1339df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_source; 1340df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller }; 1341df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller group_source_req64 req64; 1342df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req64.gsr_interface = req.gsr_interface; 1343df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group)); 1344df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source)); 1345df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1346df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1347df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller throwIfMinusOne(env, "setsockopt", rc); 1348df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller} 13496c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 1350438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1351c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 1352c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 1353c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 1354c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1355c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 1356c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 1357c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 1358c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1359c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1360c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1361c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 1362c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 1363c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 1364c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1365c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 136639fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 136739fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 1368c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1369c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1370c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1371396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 1372396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 1373396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1374396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 137559e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 137659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 137759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 137859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 137959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 1380454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 1381454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 1382454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 1383454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1384454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 13853218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 13863218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 13873218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 13883218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 13893218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 13903218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 13913218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 13923218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 13933218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 139447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 139547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 139647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 139747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1398721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) { 139959fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 140059fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 140159fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 140259fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1403721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 1404721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); 140559fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 1406721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "statvfs"); 140759fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 140859fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1409721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 141059fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 141159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1412ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 141352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1414ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1415ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1416ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1417ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1418763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughesstatic jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) { 1419763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes return env->NewStringUTF(strsignal(signal)); 1420763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes} 1421763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes 1422a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1423a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1424a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1425a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1426a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1427a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1428a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1429a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1430a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1431a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1432a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1433a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 14346fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 14356fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 14366fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 14376fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 14386fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 14397e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 14406fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 14416fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 14426fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 14436fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 1444bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 1445bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 1446bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 1447bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 1448bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 1449039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 1450039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1451039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 1452039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 1453039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 1454c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) { 145544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 145644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 145744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 14587341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 14597341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 14609b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 14619b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 14627341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 14637341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 14647341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 14657341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1466895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) { 1467895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1468895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1469895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1470895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1471895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 1472895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1473895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 14749e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 14759e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 14769e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 14779e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes if (rc != -1) { 14789e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 14799e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes env->SetIntField(javaStatus, valueFid, status); 14809e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 14819e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 14829e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 14839e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 14840568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 14850568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 148678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 148778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 148878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 1489f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); 149078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 149178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1492bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 14938dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1494bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1495bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1496bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1497f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); 1498bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1499bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1500ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1501553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), 1502ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 1503da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1504b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 150544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"), 1506462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1507996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1508396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1509396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1510ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 1511798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), 1512798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), 151344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"), 151444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"), 1515fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 1516fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 15175d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), 151852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 15195d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), 15205d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), 152152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1522f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 15234f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 15245d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;)[Ljava/net/InetAddress;"), 1525396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1526396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1527396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1528ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 15294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1530482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 1531396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1532396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 15335d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), 15345d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"), 15350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 15360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 15370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 15380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 15395d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), 15405d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), 15415d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), 1542069525a39125c203b658c805685b6045a7d4dfebElliott Hughes NATIVE_METHOD(Posix, gettid, "()I"), 1543396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1544a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 1545fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 1546a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 15475d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"), 15489a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1549a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 155044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"), 155104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes NATIVE_METHOD(Posix, link, "(Ljava/lang/String;Ljava/lang/String;)V"), 1552e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1553dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 15545d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 15550f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1556c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 1557f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"), 15587e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 15597e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 15607e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 15617e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 15627e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 15630ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 156441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 15655d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"), 156611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), 15675215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"), 1568e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 1569e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 15700568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 15710b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), 1572bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 157323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 1574c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1575a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 15765d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"), 157790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 1578396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1579895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 1580396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1581396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 15826c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes NATIVE_METHOD(Posix, setsid, "()I"), 1583c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1584b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1585454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1586b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 15875d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), 15885d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"), 15895d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), 15905d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), 1591396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 159259e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1593454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 15943218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 15955d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 15965d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), 1597ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1598763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"), 1599a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 16006fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 1601bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"), 1602039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 1603c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich NATIVE_METHOD(Posix, umaskImpl, "(I)I"), 16045d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"), 1605895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"), 16065d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"), 16070568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1608bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1609ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 16107cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) { 16117cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1612ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1613