libcore_io_Linux.cpp revision 99a0c82619a88c6aea038757cf14090f5d33afeb
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" 283e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen#include "../../bionic/libc/dns/include/resolv_netid.h" // For android_getaddrinfofornet. 290568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes#include "ScopedBytes.h" 30e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes#include "ScopedLocalRef.h" 310f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 32ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 33ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.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> 473deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifndef __APPLE__ 485215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h> 493deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 5059e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 5147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 523deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 533deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#include <sys/statvfs.h> 543deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 55069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h> 560a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 570ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 58bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 597341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 609e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h> 61bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h> 620ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 63b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers#include <memory> 64efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers 65efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#ifndef __unused 6637dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers#define __unused __attribute__((__unused__)) 67efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#endif 6837dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers 69d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 70d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 71d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (NAME == NULL) return NULL; 72d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 81996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 82f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike 83f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where 84f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or 85f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call 86f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried. 87996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 88f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 89f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other 90f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures. 91996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 921124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 931124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 94996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 95f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 96f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _syscallErrno; \ 97996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 981124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 99f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 1001124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 101f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 102f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 103996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 104f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 105f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 1065d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 107f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 108f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 109f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 110f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 111f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 112f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 113f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 114f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ 115f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc; }) 116f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 117f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/** 118f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this 119f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal 120f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the 121f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried. 122f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * 123f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 124f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled 125f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures. 126f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */ 127f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 128f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return_type _rc = -1; \ 12999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller do { \ 13099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller bool _wasSignaled; \ 13199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _syscallErrno; \ 13299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller { \ 13399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 13499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 13599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = syscall_name(_fd, __VA_ARGS__); \ 13699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _syscallErrno = errno; \ 13799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 13899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 13999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_wasSignaled) { \ 14099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ 14199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = -1; \ 14299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 14399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 14499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 14599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 14699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 14799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 14899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 14999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ 150996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 151996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 1524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 1534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 154ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 155ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 156ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 157ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 158ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 159ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1604f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 1614f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 162f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 163f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 164f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 165f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 166f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 167ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 168ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 1694f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 170ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 1714f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 172ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 173ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 174dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 175dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 1764f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 1774f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 1784f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 1794f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 1804f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 1814f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 1824f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 1834f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 1844f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 1854f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 186c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. 187c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 188c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 189c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 190c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;I)V"); 191c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes if (errno != 0) { 19275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 19375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 19475cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 19575cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 19675cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 1974f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 1984f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 1994f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 2004f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 2014f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2024f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 203dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 2047e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 205dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 2067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 207dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 208dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 20947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 21047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2118dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 212bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 213bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 214bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 215bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 216bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 217bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 218bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 219bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 220bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 221bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 222bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 223bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 224bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 225bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 226bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 227bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 228bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 229bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 230bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 231d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 232bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 233e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 2348dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 2358dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 236bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 237bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 238bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 239bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 240bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 241bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 242bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 243bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 244bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 245bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 246bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 247bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 2488dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 2498dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 250bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 251bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 252bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 253bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 254bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 255bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 256bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 257bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 258bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 259bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 260bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 261bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 262bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 263bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 264bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 265bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 2668dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 267bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 268bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 269482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss) { 27023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jint port; 27123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 2720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (inetAddress == NULL) { 2730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 2740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 2750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", 2760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes "(Ljava/net/InetAddress;I)V"); 2770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 2780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 2790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 280d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 281d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 282d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 283d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 284d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 285d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 286d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 287d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 288d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 289d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 29047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 29147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 29247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 29347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 29459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 29559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 29659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 29759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 29859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 29959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 30059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 30159fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 30259fa7163774d6930a174bc038414a4b780581957Elliott Hughes 303721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { 3046c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) 3056c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes // Mac OS has no f_namelen field in struct statfs. 3066c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes jlong max_name_length = 255; // __DARWIN_MAXNAMLEN 3076c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 308721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes jlong max_name_length = static_cast<jlong>(sb.f_namemax); 3096c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 3106c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes 311721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", 312721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes "(JJJJJJJJJJJ)V"); 313721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return env->NewObject(JniConstants::structStatVfsClass, ctor, 314721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bsize), 315721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_frsize), 316721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_blocks), 317721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bfree), 318721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bavail), 319721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_files), 320721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_ffree), 321721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_favail), 322721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_fsid), 323721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_flag), 324721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes max_name_length); 32547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 32647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 3270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 3280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 3290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 3300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 3330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 3340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 3350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 3360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 3383deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) { 3393deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 3403deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", "unimplemented support for ucred on a Mac"); 3413deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return NULL; 3423deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 343482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); 344482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); 3453deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 346482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 347482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 3487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 349d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 350d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 351d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 352d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 353d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 3547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 3557341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 3567341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 3577341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 3587341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 3597341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 360a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 361a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 362a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 363a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 364a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 365a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 366a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 367a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 368a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 369a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 370a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 371482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage& ss) { 372553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (rc == -1 || javaInetSocketAddress == NULL) { 373553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 374553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 375553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 376553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 377553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 378553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 379553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 380553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 381553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 382553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 383553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetObjectField(javaInetSocketAddress, addressFid, sender); 384553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetIntField(javaInetSocketAddress, portFid, port); 385553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 386553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 387553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 38847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 38947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 39047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 39147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 39247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 39347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 39447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 39547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 396dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 3977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 39847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 39947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 40047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 401ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 402ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 403482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { 404482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 405482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage ss; 406482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 407482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t byteCount = sizeof(ss); 408482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&ss, 0, byteCount); 409482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) 410482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); 411482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 412482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); 413482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 414482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 415482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeSocketAddress(env, ss); 416482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 417482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 418d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 419d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 420d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 421d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 422d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 423d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 424d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 425d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 426d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 427d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 428d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 429d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 430d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 431d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 432d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 433d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 434d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 435d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 436d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 437d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 438d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 439d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 440d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 441d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 442d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 443d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 444d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 445d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 446d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 447d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 448b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<char[]> mBuffer; 449d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 450d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 451d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 452d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 453d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 454553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { 455553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 456553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 457553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 458553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 459553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; 4601124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 461482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, ss)) { 462553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 463553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 464553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 465553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 466553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 467553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 468ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 469ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 470ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 471ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 472ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 47347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 474dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 4757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 476dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 477ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 478ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 479ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 480da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 481da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes sockaddr_storage ss; 482482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 483482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) { 484da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes return; 485da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes } 486da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 4871124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 488482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); 489da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 490da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 491b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 492b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 493b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 494b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 495b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 496b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 497b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 498b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 49944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 50044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 50144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 50244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 50344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 50444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 50544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 50644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 507462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 508462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 509462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 510462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 511462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 512462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 513462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 514462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 515462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 516462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 517462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 518462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 519996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 520996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes sockaddr_storage ss; 521482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 522482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) { 523996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes return; 524996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } 525996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 5261124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 527482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); 528996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 529996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 530396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 531396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 532396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 533396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 534396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 535396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 536396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 537396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 538396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 539396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 540396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 541396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 542ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 543ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 544ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 545ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 546ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 547798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { 548798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 549798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 550798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 551798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 552798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 553ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 554ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings envp(env, javaEnvp); 555ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes execve(path.c_str(), argv.get(), envp.get()); 556798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 557798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execve"); 558798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 559798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 560798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { 561798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 562798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 563798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 564798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 565798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 566ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 567ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes execv(path.c_str(), argv.get()); 568798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 569798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execv"); 570798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 571798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 57244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 57344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 57444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 57544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 57644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 57744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 57844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 57944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 58044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 58144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 582fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 583fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 584fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 585fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 586fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 587fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { 588fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 589fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 590fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 591fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 592fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 593fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 594fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 595fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 596fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 597fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 598fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 599fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 600fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 601fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 602fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 603fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 604fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 605fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 606fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 6078add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); 608fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 609fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 610fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 611fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 612fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 613fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 614fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 615fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 616fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 617fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 61852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 61952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6207e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 62152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 62252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 62347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 62447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 62547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 62647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 627dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 6287e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 62947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 63047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 63147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 63247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 63347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 634721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { 63559fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 636721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 637721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); 63859fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 639721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "fstatvfs"); 64059fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 64159fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 642721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 64359fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 64459fa7163774d6930a174bc038414a4b780581957Elliott Hughes 64552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 64652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6477e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 648f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 649f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 650f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 651f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 6527e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 65352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 65452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 6554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 6564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 6574f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 6584f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 6593e58734d651080009c9190c7062837fca5c7cf4ePaul Jensenstatic jobjectArray Posix_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, 6603e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen jobject javaHints, jint netId) { 6611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 6621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 6631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 6671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 6681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 6691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 6701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 6721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 6731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 6741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 6751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 6761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 6771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 67975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 6803e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList); 681b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 6821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 6833e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen throwGaiException(env, "android_getaddrinfo", rc); 6841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 6871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 6881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 6891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 6901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 6911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 6921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 6933e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 6941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 6971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 6981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 6991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 7001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 7011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 7021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 7031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 7061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 7071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 7081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 7091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 7101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 7113e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 7121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 7131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 7151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 716482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 71723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 7181c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 7191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 7201c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7211c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 7221c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 7231c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 7241c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 7251c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 7261c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 727396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 728396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getegid(); 729396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 730396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 731396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 732396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return geteuid(); 733396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 734396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 735396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 736396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getgid(); 737396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 738396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 739ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 740ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 741ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 742ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 743ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 744ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 745ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 746ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 7474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 7484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 749482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 750482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { 7514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 7524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 7534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 75475cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 755482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); 7564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 7574f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 7584f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 7594f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 7604f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 7614f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 7624f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 763482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) { 764482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, false); 765482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 766482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 767396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 768396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getpid(); 769396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 770396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 771396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 772396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getppid(); 773396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 774396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 775d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { 776d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 777d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 778d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 779d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 780d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 781d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 782d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 783d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { 784d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 785d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 786d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 7870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 788482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, true); 7890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 7920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 7940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 7950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 7960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 7970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 7980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 7990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 8020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 8030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 8040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 8050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 8060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 8070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 8080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 8090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 8100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 811482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 8120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 8170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 8180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 8190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 8200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 8250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 8260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 8270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 8280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 8290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 8300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 8310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 8320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 8330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 8350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 8360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 8380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 8390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 8400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 8410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 8420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 8430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 8440a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 8450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 8460a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 8470a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 848482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 849482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 850482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes struct ucred u; 851482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t size = sizeof(u); 852482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&u, 0, size); 853482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); 854482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 855482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, "getsockopt"); 856482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 857482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 858482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeStructUcred(env, u); 859482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 860482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 8613deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_gettid(JNIEnv* env __unused, jobject) { 8623deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#if defined(__APPLE__) 8633deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers uint64_t owner; 8643deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers int rc = pthread_threadid_np(NULL, &owner); // Requires Mac OS 10.6 8653deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers if (rc != 0) { 8663deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers throwErrnoException(env, "gettid"); 867fec498e588633a019ea7c93e3a8cca12bb1b3f02Ian Rogers return 0; 8683deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers } 8693deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return static_cast<jint>(owner); 87011592afbbb0b91624cdf4039782d14994b9f5162Elliott Hughes#elif defined(__BIONIC__) 87111592afbbb0b91624cdf4039782d14994b9f5162Elliott Hughes return gettid(); 8723deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 873069525a39125c203b658c805685b6045a7d4dfebElliott Hughes return syscall(__NR_gettid); 8743deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 875069525a39125c203b658c805685b6045a7d4dfebElliott Hughes} 876069525a39125c203b658c805685b6045a7d4dfebElliott Hughes 877396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 878396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return getuid(); 879396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 880396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 881a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 882a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 883a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 884a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 885a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 886a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 887a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 888a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 889fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 8901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 8911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 8921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 8951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 896fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 897fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 898fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 8991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 9001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 901fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 902482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 9031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 9041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 905a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 906a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 907a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 908a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 909a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 910a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 911a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 912a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 913a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 914a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 915482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); 916a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 917a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 9188b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 9198b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 9208b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 921461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9228b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 9238b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 9248b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 9258b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 9268b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 9278b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 9288b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 929461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 930461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 9319a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 9329a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 933bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 9349a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 9359a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 936a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 937a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 938a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 939a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 94044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 94144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 94244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 94344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 94444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 94544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 94644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 94744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 94804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughesstatic void Posix_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 94904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 95004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (oldPath.c_str() == NULL) { 95104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 95204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 95304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 95404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (newPath.c_str() == NULL) { 95504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 95604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 95704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); 95804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes} 95904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes 960e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 961e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 962e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 963e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 964e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 965dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 966dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9677e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 968dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 969dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 97047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 97147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 97247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 97347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 9740f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 9750f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 9760f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 9770f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 9780f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 9790f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 9800f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 9810f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 9820f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 9830f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 984c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 985c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 986c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 987c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 988c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 989c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 990c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 991c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 992f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerstatic void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { 993f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller ScopedUtfChars path(env, javaPath); 994f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (path.c_str() == NULL) { 995f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return; 996f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } 997f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); 998f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller} 999f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 10007e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 10017e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10027e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 10037e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 10047e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 10057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 10067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 10077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 10097e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 10107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 10117e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 10127e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 10137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 10147e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 10157e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 10167e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10177e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 10187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 10197e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 10207e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 10217e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10227e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 10237e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 10247e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 10257e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 10267e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 10277e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 10287e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 10297e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 10300ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 10310ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 10320ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 10330ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 10340ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 10350ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 10360ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 10370ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 10380ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 103941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) { 104041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 104141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); 104241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 104341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 104441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 104541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 104641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 104741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 104841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 104941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 105041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 105141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 105241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 105341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 105441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 105541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 105641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 105741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 105841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 105970c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 106070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 106170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 106270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 106370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 10645d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. 106570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 1066b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 106770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 106870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 106970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 107070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 107170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 107270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 107370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 107470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 107570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 107670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 107770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 107870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 107970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 108070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 108170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 108270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 1083f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller std::vector<AsynchronousCloseMonitor*> monitors; 1084796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 1085f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); 1086796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 1087796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes int rc = poll(fds.get(), count, timeoutMs); 1088796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 1089796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 1090796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 109170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 109270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 109370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 109470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 109570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 10965d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Update the revents fields in the Java android.system.StructPollfd[]. 109798b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 109870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 109998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 110098b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 110198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 110270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 110370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 110470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 110570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 110670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 11073deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused, 11083deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong offset __unused, jlong length __unused) { 11093deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 11103deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", 11113deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers "fallocate doesn't exist on a Mac"); 11123deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 111311f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 111411f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes errno = TEMP_FAILURE_RETRY(posix_fallocate64(fd, offset, length)); 111511f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes if (errno != 0) { 111611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes throwErrnoException(env, "posix_fallocate"); 111711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes } 11183deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 111911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes} 112011f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes 11213deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused, 11223deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) { 11233deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 11243deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", "prctl doesn't exist on a Mac"); 11253deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return 0; 11263deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 11275215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich int result = prctl(static_cast<int>(option), 11285215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich static_cast<unsigned long>(arg2), static_cast<unsigned long>(arg3), 11295215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich static_cast<unsigned long>(arg4), static_cast<unsigned long>(arg5)); 11305215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich return throwIfMinusOne(env, "prctl", result); 11313deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 11325215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich} 11335215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich 1134e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1135e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 1136e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1137e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1138e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1139f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1140e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1141e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 1142e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1143e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 1144e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1145e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1146e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1147f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1148e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1149e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 11500568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 11510568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 115226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 115326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 115426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 1155f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); 115626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 115726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 11580b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughesstatic jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) { 11590b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes ScopedUtfChars path(env, javaPath); 11600b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (path.c_str() == NULL) { 11610b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 11620b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 11630b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 11640b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes std::string result; 11650b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (!readlink(path.c_str(), result)) { 11660b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes throwErrnoException(env, "readlink"); 11670b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 11680b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 11690b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return env->NewStringUTF(result.c_str()); 11700b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes} 11710b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 1172bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 11738dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 1174bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1175bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1176bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1177f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); 1178bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1179bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 118023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 118123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 118223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 118323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 118423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 118523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 118623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 118723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 118823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 118923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 11901124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 1191482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes fillInetSocketAddress(env, recvCount, javaInetSocketAddress, ss); 119223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 119323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 119423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 1195c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 1196c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1197c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1198c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1199c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1200c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 1201c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1202c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 1203a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1204a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1205a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1206a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1207a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1208a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1209a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1210a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1211a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1212a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 1213a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1214a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 12158b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 12168b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 12178b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 12188b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 12198b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 12208b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 12218b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 12228b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 12238b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 12248b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 12258b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 12268b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 12278b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 12288b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 12298b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 12308b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 12318b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 12328b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 123390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 123490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 123590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 123690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 123790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 123890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes sockaddr_storage ss; 1239482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len = 0; 1240482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len)) { 124190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 124290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 124390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL; 1244482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, to, sa_len); 124590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 124690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 1247396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 1248396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 1249396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1250396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1251895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 1252895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1253895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1254895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1255895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1256895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 1257895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 1258895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1259895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1260895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 1261895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1262895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 1263396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 1264396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 1265396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1266396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1267396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 1268396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 1269396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1270396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 12716c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) { 12726c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 12736c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 12746c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 1275c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1276c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1277c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 1278c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 1279c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1280c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1281a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 1282a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1283a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1284b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 1285b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 1286b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1287b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1288b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1289b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1290454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1291454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1292454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1293454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1294454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 12956c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1070 12966c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes// Mac OS didn't support modern multicast APIs until 10.7. 12976c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv*, jobject, jobject, jint, jint, jint) { abort(); } 12986c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 1299df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 13006c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 1301b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1302b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 1303b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 1304b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 1305b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1306b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1307b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1308b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1309438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 13108ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 13118ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 1312438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1313438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 13148ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 1315438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 1316438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 1317e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 1318482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 1319482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { 1320438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 1321438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1322438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1323438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13248ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1325438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 1326438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1327438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 1328df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 13299634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 1330438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 1331438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 1332438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 1333438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 13348ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 13358ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 13368ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 13378ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1338438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1339438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 1340438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 1341df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1342df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) { 1343df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller socklen_t sa_len; 1344df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req req; 1345df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memset(&req, 0, sizeof(req)); 1346df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1347df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I"); 1348df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid); 1349df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to join or leave. 1350df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;"); 1351df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid)); 1352df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) { 1353df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1354df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1355df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1356df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to add to the filter. 1357df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;"); 1358df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid)); 1359df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) { 1360df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1361df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1362df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1363df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int fd = jniGetFDFromFileDescriptor(env, javaFd); 1364df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1365df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (rc == -1 && errno == EINVAL) { 1366df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1367df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // glibc doesn't automatically handle this. 1368df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 1369df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req64 { 1370df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t gsr_interface; 1371df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t my_padding; 1372df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_group; 1373df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_source; 1374df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller }; 1375df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller group_source_req64 req64; 1376df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req64.gsr_interface = req.gsr_interface; 1377df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group)); 1378df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source)); 1379df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1380df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1381df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller throwIfMinusOne(env, "setsockopt", rc); 1382df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller} 13836c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 1384438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1385c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 1386c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 1387c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 1388c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1389c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 1390c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 1391c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 1392c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1393c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1394c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1395c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 1396c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 1397c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 1398c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1399c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 140039fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 140139fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 1402c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1403c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1404c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1405396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 1406396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 1407396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1408396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 140959e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 141059e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 141159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 141259e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 141359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 1414454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 1415454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 1416454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 1417454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1418454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 14193218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 14203218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 14213218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 14223218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 14233218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 14243218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 14253218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 14263218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 14273218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 142847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 142947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 143047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 143147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1432721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) { 143359fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 143459fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 143559fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 143659fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1437721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 1438721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); 143959fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 1440721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "statvfs"); 144159fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 144259fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1443721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 144459fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 144559fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1446ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 144752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1448ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1449ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1450ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1451ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1452763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughesstatic jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) { 1453763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes return env->NewStringUTF(strsignal(signal)); 1454763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes} 1455763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes 1456a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1457a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1458a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1459a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1460a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1461a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1462a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1463a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1464a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1465a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1466a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1467a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 14686fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 14696fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 14706fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 14716fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 14726fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 14737e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 14746fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 14756fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 14766fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 14776fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 1478bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 1479bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 1480bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 1481bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 1482bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 1483039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 1484039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1485039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 1486039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 1487039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 1488c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) { 148944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 149044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 149144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 14927341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 14937341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 14949b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 14959b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 14967341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 14977341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 14987341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 14997341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1500895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) { 1501895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1502895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1503895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1504895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1505895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 1506895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1507895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 15089e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 15099e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 15109e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 15119e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes if (rc != -1) { 15129e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 15139e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes env->SetIntField(javaStatus, valueFid, status); 15149e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 15159e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 15169e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 15179e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 15180568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 15190568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 152078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 152178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 152278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 1523f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); 152478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 152578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1526bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 15278dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1528bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1529bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1530bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1531f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); 1532bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1533bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 1534ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1535553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), 1536ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 15373e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen NATIVE_METHOD(Posix, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"), 1538da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1539b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 154044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"), 1541462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1542996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 1543396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1544396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1545ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 1546798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), 1547798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), 154844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"), 154944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"), 1550fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 1551fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), 15525d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), 155352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 15545d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), 15555d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), 155652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1557f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 15584f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 1559396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1560396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1561396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1562ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 15634f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1564482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 1565396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1566396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 15675d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), 15685d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"), 15690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 15700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 15710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 15720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 15735d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), 15745d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), 15755d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), 1576069525a39125c203b658c805685b6045a7d4dfebElliott Hughes NATIVE_METHOD(Posix, gettid, "()I"), 1577396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1578a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 1579fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 1580a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 15815d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"), 15829a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1583a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 158444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"), 158504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes NATIVE_METHOD(Posix, link, "(Ljava/lang/String;Ljava/lang/String;)V"), 1586e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1587dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 15885d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 15890f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1590c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 1591f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"), 15927e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 15937e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 15947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 15957e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 15967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 15970ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 159841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), 15995d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"), 160011f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), 16015215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"), 1602e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 1603e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 16040568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 16050b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), 1606bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 160723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 1608c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1609a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 16105d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"), 161190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 1612396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1613895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 1614396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1615396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 16166c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes NATIVE_METHOD(Posix, setsid, "()I"), 1617c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1618b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1619454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1620b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 16215d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), 16225d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"), 16235d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), 16245d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), 1625396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 162659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1627454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 16283218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 16295d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 16305d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), 1631ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1632763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"), 1633a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 16346fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 1635bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"), 1636039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 1637c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich NATIVE_METHOD(Posix, umaskImpl, "(I)I"), 16385d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"), 1639895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"), 16405d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"), 16410568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1642bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1643ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 16447cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) { 16457cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1646ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1647