libcore_io_Linux.cpp revision e0273519773d7b14680fe0aa8bc180836042f245
1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/* 2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License. 6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at 7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and 14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License. 15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */ 16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 17ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#define LOG_TAG "Posix" 18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 19f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#include "AsynchronousCloseMonitor.h" 2015c1945bb1810d061ea2d5b07a11e3ecc5ec8536Ruben Brunk#include "cutils/log.h" 21ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes#include "ExecStrings.h" 22ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JNIHelp.h" 23ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JniConstants.h" 24ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "JniException.h" 250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include "NetworkUtilities.h" 266c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#include "Portability.h" 270b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes#include "readlink.h" 280568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes#include "ScopedBytes.h" 29e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes#include "ScopedLocalRef.h" 300f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h" 31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h" 32ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h" 33ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 341c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h> 35ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 360ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 378f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#include <linux/rtnetlink.h> 38b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h> 394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h> 400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h> 41a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti#include <netpacket/packet.h> 4270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h> 43d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h> 44a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h> 45ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 46461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 477e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 483deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifndef __APPLE__ 495215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h> 503deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 5159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 5247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 533deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 543deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#include <sys/statvfs.h> 553deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 56069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h> 570a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 580ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 59bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 607341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 619e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h> 62bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h> 630ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 64b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers#include <memory> 65efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers 66efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#ifndef __unused 6737dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers#define __unused __attribute__((__unused__)) 68efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#endif 6937dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers 70d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 71d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 72d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (NAME == NULL) return NULL; 73d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 82b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colittistatic bool isIPv4MappedAddress(const sockaddr *sa) { 83b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti const sockaddr_in6 *sin6 = reinterpret_cast<const sockaddr_in6*>(sa); 84b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return sa != NULL && sa->sa_family == AF_INET6 && 85b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) || 86b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)); // We map 0.0.0.0 to ::, so :: is mapped. 87b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti} 88b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 89b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti/** 90b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * Perform a socket operation that specifies an IP address, possibly falling back from specifying 91b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address as an IPv4-mapped IPv6 address in a struct sockaddr_in6 to specifying it as an IPv4 92b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * address in a struct sockaddr_in. 93b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * 94b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * This is needed because all sockets created by the java.net APIs are IPv6 sockets, and on those 95b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * sockets, IPv4 operations use IPv4-mapped addresses stored in a struct sockaddr_in6. But sockets 96b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * created using Posix.socket(AF_INET, ...) are IPv4 sockets and only support operations using IPv4 97b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * socket addresses structures. 98b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti */ 99b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NET_IPV4_FALLBACK(jni_env, return_type, syscall_name, java_fd, java_addr, port, null_addr_ok, args...) ({ \ 100b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return_type _rc = -1; \ 101b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti do { \ 102b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr_storage _ss; \ 103b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti socklen_t _salen; \ 104b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (java_addr == NULL && null_addr_ok) { \ 105b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* No IP address specified (e.g., sendto() on a connected socket). */ \ 106b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _salen = 0; \ 107b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } else if (!inetAddressToSockaddr(jni_env, java_addr, port, _ss, _salen)) { \ 108b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* Invalid socket address, return -1. inetAddressToSockaddr has already thrown. */ \ 109b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 110b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 111b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr* _sa = _salen ? reinterpret_cast<sockaddr*>(&_ss) : NULL; \ 112b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* inetAddressToSockaddr always returns an IPv6 sockaddr. Assume that java_fd was created \ 113b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * by Java API calls, which always create IPv6 socket fds, and pass it in as is. */ \ 114b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 115b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (_rc == -1 && errno == EAFNOSUPPORT && _salen && isIPv4MappedAddress(_sa)) { \ 116b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* We passed in an IPv4 address in an IPv6 sockaddr and the kernel told us that we got \ 117b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address family wrong. Pass in the same address in an IPv4 sockaddr. */ \ 118b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti jni_env->ExceptionClear(); \ 119b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (!inetAddressToSockaddrVerbatim(jni_env, java_addr, port, _ss, _salen)) { \ 120b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 121b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 122b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _sa = reinterpret_cast<sockaddr*>(&_ss); \ 123b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 124b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 125b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } while (0); \ 126b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc; }) \ 127b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 128996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 129f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike 130f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where 131f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or 132f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call 133f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried. 134996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 135f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 136f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other 137f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures. 138996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 1391124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 1401124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 141996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 142f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 143f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller int _syscallErrno; \ 144996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 1451124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 146f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 1471124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 148f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 149f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 150996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 151f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 152f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 1535d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 154f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 155f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 156f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 157f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 158f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 159f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 160f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 161f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ 162f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc; }) 163f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 164f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/** 165f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this 166f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal 167f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the 168f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried. 169f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * 170f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 171f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled 172f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures. 173f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */ 174f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 175f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return_type _rc = -1; \ 17699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller do { \ 17799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller bool _wasSignaled; \ 17899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _syscallErrno; \ 17999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller { \ 18099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 18199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 18299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = syscall_name(_fd, __VA_ARGS__); \ 18399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _syscallErrno = errno; \ 18499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 18599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 18699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_wasSignaled) { \ 18799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ 18899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = -1; \ 18999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 19099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 19199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 19299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 19399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 19499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 19599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 19699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ 197996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 198996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 199b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_OK true 200b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_FORBIDDEN false 201b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 2024f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 2034f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 204ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 205ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 206ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 207ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 208ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 209ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 2104f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 2114f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 212f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 213f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 214f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 215f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 216f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 217ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 218ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 2194f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 220ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 2214f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 222ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 223ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 224dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 225dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 2264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 2274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 2284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 2294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 2304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 2314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 2324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 2334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 2354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 236c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. 237c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 238c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 239c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 240c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;I)V"); 241c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes if (errno != 0) { 24275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 24375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 24475cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 24575cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 24675cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 2474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 2484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 2494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 2504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 2514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 253dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 2547e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 255dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 2567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 257dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 258dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 25947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 26047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2618dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 262bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 263bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 264bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 265bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 266bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 267bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 268bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 269bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 270bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 271bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 272bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 273bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 274bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 275bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 276bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 277bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 278bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 279bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 280bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 281d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 282bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 283e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 2848dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 2858dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 286bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 287bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 288bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 289bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 290bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 291bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 292bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 293bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 294bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 295bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 296bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 297bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 2988dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 2998dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 300bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 301bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 302bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 303bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 304bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 305bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 306bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 307bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 308bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 309bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 310bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 311bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 312bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 313bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 314bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 315bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 3168dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 317bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 318bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 319482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss) { 3208f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6 || ss.ss_family == AF_UNIX) { 3218f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jint port; 3228f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 3238f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (inetAddress == NULL) { 3248f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; // Exception already thrown. 3258f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 3268f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, 3278f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(Ljava/net/InetAddress;I)V"); 3288f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 3298f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (ss.ss_family == AF_NETLINK) { 3308f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const struct sockaddr_nl* nl_addr = reinterpret_cast<const struct sockaddr_nl*>(&ss); 3318f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::netlinkSocketAddressClass, 3328f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(II)V"); 3338f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return env->NewObject(JniConstants::netlinkSocketAddressClass, ctor, 3348f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static_cast<jint>(nl_addr->nl_pid), 3358f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static_cast<jint>(nl_addr->nl_groups)); 33600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (ss.ss_family == AF_PACKET) { 33700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti const struct sockaddr_ll* sll = reinterpret_cast<const struct sockaddr_ll*>(&ss); 33800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jmethodID ctor = env->GetMethodID(JniConstants::packetSocketAddressClass, 33900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti "<init>", "(SISB[B)V"); 34000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(sll->sll_halen)); 34100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (byteArray.get() == NULL) { 34200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return NULL; 34300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 34400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->SetByteArrayRegion(byteArray.get(), 0, sll->sll_halen, 34500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti reinterpret_cast<const jbyte*>(sll->sll_addr)); 34600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jobject packetSocketAddress = env->NewObject(JniConstants::packetSocketAddressClass, ctor, 34700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(ntohs(sll->sll_protocol)), 34800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jint>(sll->sll_ifindex), 34900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(sll->sll_hatype), 35000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jbyte>(sll->sll_pkttype), 35100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti byteArray.get()); 35200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return packetSocketAddress; 35300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 35400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", "unsupported ss_family: %d", 35500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ss.ss_family); 3568f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; 3570a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 3580a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 359d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 360d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 361d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 362d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 363d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 364d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 365d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 366d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 367d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 368d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 36947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) { 37047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 37147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes "(JJIJIIJJJJJJJ)V"); 37247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 37359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 37459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 37559fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 37659fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 37759fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), 37859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), 37959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 38059fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 38159fa7163774d6930a174bc038414a4b780581957Elliott Hughes 382721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { 3836c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) 3846c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes // Mac OS has no f_namelen field in struct statfs. 3856c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes jlong max_name_length = 255; // __DARWIN_MAXNAMLEN 3866c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 387721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes jlong max_name_length = static_cast<jlong>(sb.f_namemax); 3886c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 3896c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes 390721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", 391721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes "(JJJJJJJJJJJ)V"); 392721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return env->NewObject(JniConstants::structStatVfsClass, ctor, 393721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bsize), 394721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_frsize), 395721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_blocks), 396721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bfree), 397721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bavail), 398721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_files), 399721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_ffree), 400721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_favail), 401721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_fsid), 402721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_flag), 403721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes max_name_length); 40447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 40547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 4060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 4070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 4080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 4090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 4120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 4130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 4140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 4150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4173deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) { 4183deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 4193deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", "unimplemented support for ucred on a Mac"); 4203deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return NULL; 4213deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 422482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); 423482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); 4243deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 425482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 426482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 4277341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 428d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 429d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 430d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 431d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 432d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 4337341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 4347341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 4357341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 4367341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 4377341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 4387341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 439a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 440a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 441a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 442a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 443a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 444a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 445a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 446a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 447a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 448a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 449a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 450482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage& ss) { 451553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (rc == -1 || javaInetSocketAddress == NULL) { 452553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 453553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 454553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 455553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 456553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 457553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 458553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 459553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 460553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 461553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 462553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetObjectField(javaInetSocketAddress, addressFid, sender); 463553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes env->SetIntField(javaInetSocketAddress, portFid, port); 464553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 465553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 466553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 467f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic void javaInetSocketAddressToInetAddressAndPort( 468f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaInetSocketAddress, jobject& javaInetAddress, jint& port) { 4698f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID addressFid = env->GetFieldID( 4708f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); 4718f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); 472f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetAddress = env->GetObjectField(javaInetSocketAddress, addressFid); 473f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti port = env->GetIntField(javaInetSocketAddress, portFid); 474f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti} 475f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 476f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic bool javaInetSocketAddressToSockaddr( 477f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 478f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 479f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 480f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 481f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti return inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len); 4828f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 4838f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 4848f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaNetlinkSocketAddressToSockaddr( 4858f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 4868f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlPidFid = env->GetFieldID( 4878f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlPortId", "I"); 4888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlGroupsFid = env->GetFieldID( 4898f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlGroupsMask", "I"); 4908f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 4918f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_nl *nlAddr = reinterpret_cast<sockaddr_nl *>(&ss); 4928f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_family = AF_NETLINK; 4938f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_pid = env->GetIntField(javaSocketAddress, nlPidFid); 4948f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_groups = env->GetIntField(javaSocketAddress, nlGroupsFid); 4958f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sa_len = sizeof(sockaddr_nl); 4968f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return true; 4978f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 4988f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 49900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colittistatic bool javaPacketSocketAddressToSockaddr( 50000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 50100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID protocolFid = env->GetFieldID( 50200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_protocol", "S"); 50300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID ifindexFid = env->GetFieldID( 50400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_ifindex", "I"); 50500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID hatypeFid = env->GetFieldID( 50600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_hatype", "S"); 50700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID pkttypeFid = env->GetFieldID( 50800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_pkttype", "B"); 50900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID addrFid = env->GetFieldID( 51000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_addr", "[B"); 51100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 51200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sockaddr_ll *sll = reinterpret_cast<sockaddr_ll *>(&ss); 51300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_family = AF_PACKET; 514e0273519773d7b14680fe0aa8bc180836042f245Lorenzo Colitti sll->sll_protocol = htons(env->GetShortField(javaSocketAddress, protocolFid)); 51500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_ifindex = env->GetIntField(javaSocketAddress, ifindexFid); 51600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_hatype = env->GetShortField(javaSocketAddress, hatypeFid); 51700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_pkttype = env->GetByteField(javaSocketAddress, pkttypeFid); 51800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 51900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jbyteArray sllAddr = (jbyteArray) env->GetObjectField(javaSocketAddress, addrFid); 52000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (sllAddr == NULL) { 52100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = 0; 52200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti memset(&sll->sll_addr, 0, sizeof(sll->sll_addr)); 52300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else { 52400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jsize len = env->GetArrayLength(sllAddr); 52500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if ((size_t) len > sizeof(sll->sll_addr)) { 52600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti len = sizeof(sll->sll_addr); 52700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 52800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = len; 52900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->GetByteArrayRegion(sllAddr, 0, len, (jbyte*) sll->sll_addr); 53000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 53100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sa_len = sizeof(sockaddr_ll); 53200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return true; 53300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti} 53400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 5358f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaSocketAddressToSockaddr( 5368f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 5378f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (javaSocketAddress == NULL) { 5388f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowNullPointerException(env, NULL); 5398f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 5408f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 5418f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 5428f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (env->IsInstanceOf(javaSocketAddress, JniConstants::netlinkSocketAddressClass)) { 5438f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaNetlinkSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 5448f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 5458f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaInetSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 54600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::packetSocketAddressClass)) { 54700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return javaPacketSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 5488f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 5498f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowException(env, "java/lang/UnsupportedOperationException", 5508f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "unsupported SocketAddress subclass"); 5518f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 5528f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 5538f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 55447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 55547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 55647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 55747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 55847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 55947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 56047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) 56147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); 562dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 5637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 56447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 56547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 56647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 567ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 568ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 569482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { 570482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 571482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage ss; 572482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 573482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t byteCount = sizeof(ss); 574482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&ss, 0, byteCount); 575482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) 576482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); 577482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 578482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); 579482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 580482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 581482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeSocketAddress(env, ss); 582482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 583482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 584d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 585d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 586d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 587d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 588d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 589d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 590d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 591d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 592d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 593d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 594d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 595d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 596d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 597d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 598d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 599d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 600d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 601d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 602d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 603d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 604d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 605d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 606d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 607d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 608d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 609d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 610d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 611d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 612d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 613d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 614b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<char[]> mBuffer; 615d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 616d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 617d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 618d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 619d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 620553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { 621553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 622553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 623553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 624553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 625553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; 6261124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 627482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, ss)) { 628553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 629553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 630553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 631553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 632553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 633553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 634ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 635ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 636ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 637ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 638ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 63947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 640dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 6417e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 642dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 643ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 644ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 645ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 646da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 6471124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 648b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, bind, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 649da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 650da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 6518f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic void Posix_bindSocketAddress( 6528f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 6538f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 6548f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 6558f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 6568f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 6578f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 6588f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 6598f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 6608f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 6618f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); 6628f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 6638f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 664b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 665b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 666b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 667b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 668b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 669b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 670b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 671b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 67244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 67344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 67444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 67544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 67644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 67744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 67844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 67944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 680462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) { 681462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 682462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 683462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 684462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 685462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 686462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 687462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 688462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 689462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 690462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 691462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 692996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 693b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, connect, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 694996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 695996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 6968f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic void Posix_connectSocketAddress( 6978f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 6988f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 6998f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 7008f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 7018f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 7028f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 7038f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 7048f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 7058f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 7068f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); 7078f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 7088f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 709396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { 710396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 711396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 712396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 713396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 714396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 715396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 716396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 717396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 718396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 719396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 720396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 721ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) { 722ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 723ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 724ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 725ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 726798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { 727798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 728798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 729798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 730798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 731798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 732ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 733ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings envp(env, javaEnvp); 734fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execve(path.c_str(), argv.get(), envp.get())); 735798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 736798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execve"); 737798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 738798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 739798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { 740798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 741798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 742798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 743798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 744798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 745ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 746fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execv(path.c_str(), argv.get())); 747798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 748798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execv"); 749798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 750798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 75144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 75244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 75344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 75444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 75544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 75644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 75744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 75844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 75944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 76044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 761fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 762fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 763fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 764fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 765fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 766fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 767fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 768fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 769fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 770fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 771fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 772fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 773fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 774fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 775fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 7768add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); 777fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 778fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 779fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 780fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 781fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 782fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 783fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 784fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 785fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 786fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 787c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamathstatic jint Posix_fcntlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jint arg) { 788c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 789c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 790c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 791c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 792c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamathstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 793c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 794c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 795c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 796c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 79752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 79852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 7997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 80052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 80152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 80247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { 80347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 80447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes struct stat sb; 80547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); 806dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 8077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 80847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 80947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 81047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 81147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 81247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 813721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { 81459fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 815721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 816721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); 81759fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 818721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "fstatvfs"); 81959fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 82059fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 821721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 82259fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 82359fa7163774d6930a174bc038414a4b780581957Elliott Hughes 82452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { 82552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8267e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 827f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 828f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 829f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 830f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 8317e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 83252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 83352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 8344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { 8354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 8364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 8374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 8383e58734d651080009c9190c7062837fca5c7cf4ePaul Jensenstatic jobjectArray Posix_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, 8393e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen jobject javaHints, jint netId) { 8401c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 8411c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 8421c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8431c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8441c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8451c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 8461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 8471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 8481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 8491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 8511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 8521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 8531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 8541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 8551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 8561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 85875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 8593e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList); 860b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 8611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 8623e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen throwGaiException(env, "android_getaddrinfo", rc); 8631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 8671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 8681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 8691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 8701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 8711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 8723e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 8731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 8761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 8801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 8811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 8821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 8861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 8871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 8881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 8891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 8903e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 8911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 8921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 8931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 8941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 895482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 89623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 8971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 8981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 8991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 9001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 9011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 9021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 9031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 9041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 9051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 906396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) { 907564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getegid(); 908396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 909396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 910396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) { 911564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return geteuid(); 912396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 913396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 914396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) { 915564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getgid(); 916396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 917396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 918ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { 919ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 920ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 921ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 922ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 923ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 924ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 925ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 9264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 9274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 928482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 929482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { 9304f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 9314f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 9324f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 93375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 934482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); 9354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 9364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 9374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 9384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 9394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 9404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 9414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 942482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) { 943482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, false); 944482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 945482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 9468f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic jint Posix_getpgid(JNIEnv* env, jobject, jint pid) { 9478f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes return throwIfMinusOne(env, "getpgid", TEMP_FAILURE_RETRY(getpgid(pid))); 9488f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 9498f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 950396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) { 951fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getpid()); 952396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 953396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 954396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) { 955fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getppid()); 956396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 957396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 958d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { 959d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 960d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 961d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 962d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 963d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 964d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 965d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 966d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { 967d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 968d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 969d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 9700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { 971482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, true); 9720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 9730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 9740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 9750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 9770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 9780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 9790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 9800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 9810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 9820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 9830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 9850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 9860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 9870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 9880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 9890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 9900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 9910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 9920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 9930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 994482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 9950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 9960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 9970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 9980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 9990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 10000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 10010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 10020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 10030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 10040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 10050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 10060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 10070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 10080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 10090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 10100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 10110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 10120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 10130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 10140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 10150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 10160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 10170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 10180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 10190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 10200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 10210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 10220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 10230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 10240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 10250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 10260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 10270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 10280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 10290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 10300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 1031482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 1032482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1033482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes struct ucred u; 1034482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t size = sizeof(u); 1035482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&u, 0, size); 1036482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); 1037482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 1038482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, "getsockopt"); 1039482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 1040482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 1041482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeStructUcred(env, u); 1042482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 1043482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 10443deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_gettid(JNIEnv* env __unused, jobject) { 10453deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#if defined(__APPLE__) 10463deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers uint64_t owner; 10473deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers int rc = pthread_threadid_np(NULL, &owner); // Requires Mac OS 10.6 10483deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers if (rc != 0) { 10493deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers throwErrnoException(env, "gettid"); 1050fec498e588633a019ea7c93e3a8cca12bb1b3f02Ian Rogers return 0; 10513deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers } 10523deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return static_cast<jint>(owner); 105311592afbbb0b91624cdf4039782d14994b9f5162Elliott Hughes#elif defined(__BIONIC__) 1054fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(gettid()); 10553deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 1056069525a39125c203b658c805685b6045a7d4dfebElliott Hughes return syscall(__NR_gettid); 10573deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 1058069525a39125c203b658c805685b6045a7d4dfebElliott Hughes} 1059069525a39125c203b658c805685b6045a7d4dfebElliott Hughes 1060396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) { 1061564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getuid(); 1062396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1063396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1064a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { 1065a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 1066a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 1067a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 1068a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 1069a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 1070a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1071a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 1072fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 10731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 10741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 10751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 10761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 10771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 10781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 1079fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 1080fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 1081fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 10821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 10831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 1084fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 1085482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 10861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 10871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 1088a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 1089a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1090a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1091a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1092a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1093a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1094a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 1095a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 1096a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1097a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1098482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); 1099a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1100a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 11018b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 11028b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 11038b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 1104461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11058b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 11068b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 11078b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 11088b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 11098b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 11108b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 11118b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 1112461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 1113461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 11149a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { 11159a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1116bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 11179a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 11189a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 1119a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { 1120a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 1121a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 1122a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 112344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 112444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 112544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 112644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 112744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 112844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 112944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 113044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 113104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughesstatic void Posix_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 113204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 113304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (oldPath.c_str() == NULL) { 113404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 113504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 113604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 113704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (newPath.c_str() == NULL) { 113804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 113904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 114004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); 114104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes} 114204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes 1143e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 1144e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1145e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 1146e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 1147e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 1148dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 1149dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11507e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 1151dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 1152dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 115347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { 115447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 115547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 115647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 11570f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 11580f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 11590f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 11600f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 11610f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 11620f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 11630f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 11640f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 11650f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 11660f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 1167c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1168c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1169c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1170c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1171c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1172c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 1173c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1174c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 1175f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerstatic void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1176f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller ScopedUtfChars path(env, javaPath); 1177f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (path.c_str() == NULL) { 1178f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return; 1179f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } 1180f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); 1181f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller} 1182f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 11837e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 11847e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 11857e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 11867e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 11877e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 11887e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 11897e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 11917e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); 11927e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 11937e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 11947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 11957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 11967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 11977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 11987e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 11997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 12007e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 12017e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 12027e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 12037e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 12047e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 12057e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 12067e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 12077e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 12087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 12097e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 12107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 12117e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 12127e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 12130ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 12140ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 12150ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 12160ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 12170ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 12180ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 12190ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 12200ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 12210ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 12225e92aa60a8a7103c71a4607ac05880e536f4195eElliott Hughesstatic jobjectArray Posix_pipe2(JNIEnv* env, jobject, jint flags __unused) { 122362eda73d52868b259e7543723739656680b89caaElliott Hughes#ifdef __APPLE__ 122462eda73d52868b259e7543723739656680b89caaElliott Hughes jniThrowException(env, "java/lang/UnsupportedOperationException", "no pipe2 on Mac OS"); 1225f2ea64c866ffe95885e928b6c8967f74810c5558Elliott Hughes return NULL; 122662eda73d52868b259e7543723739656680b89caaElliott Hughes#else 122741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 12280d8b5c3692c36837d22c4e7d9c4d7d95f6a10235Elliott Hughes throwIfMinusOne(env, "pipe2", TEMP_FAILURE_RETRY(pipe2(&fds[0], flags))); 122941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 123041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 123141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 123241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 123341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 123441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 123541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 123641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 123741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 123841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 123941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 124041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 124141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 124241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 124341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 124462eda73d52868b259e7543723739656680b89caaElliott Hughes#endif 124541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 124641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 124770c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 124870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 124970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 125070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 125170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 12525d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. 125370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 1254b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 125570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 125670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 125770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 125870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 125970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 126070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 126170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 126270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 126370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 126470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 126570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 126670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 126770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 126870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 126970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 127070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 1271f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller std::vector<AsynchronousCloseMonitor*> monitors; 1272796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 1273f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); 1274796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 1275fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1276fa542091e45db699a937c5ac0191194405107827Elliott Hughes int rc; 1277fa542091e45db699a937c5ac0191194405107827Elliott Hughes while (true) { 1278fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec before; 1279fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &before); 1280fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1281fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = poll(fds.get(), count, timeoutMs); 1282fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (rc >= 0 || errno != EINTR) { 1283fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1284fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1285fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1286fa542091e45db699a937c5ac0191194405107827Elliott Hughes // We got EINTR. Work out how much of the original timeout is still left. 1287fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (timeoutMs > 0) { 1288fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec now; 1289fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &now); 1290fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1291fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec diff; 1292fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_sec = now.tv_sec - before.tv_sec; 1293fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec = now.tv_nsec - before.tv_nsec; 1294fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diff.tv_nsec < 0) { 1295fa542091e45db699a937c5ac0191194405107827Elliott Hughes --diff.tv_sec; 1296fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec += 1000000000; 1297fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1298fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1299fa542091e45db699a937c5ac0191194405107827Elliott Hughes jint diffMs = diff.tv_sec * 1000 + diff.tv_nsec / 1000000; 1300fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diffMs >= timeoutMs) { 1301fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = 0; // We have less than 1ms left anyway, so just time out. 1302fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1303fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1304fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1305fa542091e45db699a937c5ac0191194405107827Elliott Hughes timeoutMs -= diffMs; 1306fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1307fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1308fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1309796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 1310796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 1311796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 131270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 131370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 131470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 131570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 131670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 13175d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Update the revents fields in the Java android.system.StructPollfd[]. 131898b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 131970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 132098b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 132198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 132298b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 132370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 132470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 132570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 132670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 132770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 13283deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused, 13293deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong offset __unused, jlong length __unused) { 13303deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 13313deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", 13323deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers "fallocate doesn't exist on a Mac"); 13333deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 133411f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1335fa542091e45db699a937c5ac0191194405107827Elliott Hughes while ((errno = posix_fallocate64(fd, offset, length)) == EINTR) { 1336fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 133711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes if (errno != 0) { 133811f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes throwErrnoException(env, "posix_fallocate"); 133911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes } 13403deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 134111f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes} 134211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes 13433deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused, 13443deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) { 13453deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#ifdef __APPLE__ 13463deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jniThrowException(env, "java/lang/UnsupportedOperationException", "prctl doesn't exist on a Mac"); 13473deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers return 0; 13483deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 1349fa542091e45db699a937c5ac0191194405107827Elliott Hughes int result = TEMP_FAILURE_RETRY(prctl(static_cast<int>(option), 1350fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg2), 1351fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg3), 1352fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg4), 1353fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg5))); 13545215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich return throwIfMinusOne(env, "prctl", result); 13553deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 13565215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich} 13575215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich 1358e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1359e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 1360e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1361e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1362e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1363f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1364e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1365e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 1366e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1367e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 1368e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1369e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1370e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1371f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1372e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1373e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 13740568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 13750568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 137626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 137726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 137826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 1379f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); 138026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 138126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 13820b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughesstatic jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) { 13830b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes ScopedUtfChars path(env, javaPath); 13840b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (path.c_str() == NULL) { 13850b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 13860b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 13870b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 13880b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes std::string result; 13890b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (!readlink(path.c_str(), result)) { 13900b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes throwErrnoException(env, "readlink"); 13910b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 13920b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 13930b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return env->NewStringUTF(result.c_str()); 13940b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes} 13950b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 1396bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 13978dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 1398bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1399bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1400bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1401f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); 1402bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1403bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 140423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 140523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 140623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 140723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 140823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 140923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 141023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 141123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 141223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 141323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 14141124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 1415482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes fillInetSocketAddress(env, recvCount, javaInetSocketAddress, ss); 141623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 141723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 141823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 1419c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { 1420c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1421c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1422c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1423c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1424c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 1425c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1426c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 1427a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1428a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1429a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1430a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1431a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1432a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1433a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1434a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1435a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1436a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 1437a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1438a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 14398b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 14408b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 14418b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 14428b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 14438b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 14448b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 14458b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 14468b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 14478b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 14488b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 14498b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 14508b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 14518b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 14528b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 14538b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 14548b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 14558b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 14568b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 145790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 145890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 145990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 146090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 146190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 1462b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 1463b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return NET_IPV4_FALLBACK(env, ssize_t, sendto, javaFd, javaInetAddress, port, 1464b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti NULL_ADDR_OK, bytes.get() + byteOffset, byteCount, flags); 146590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 146690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 1467a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colittistatic jint Posix_sendtoBytesSocketAddress(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaSocketAddress) { 1468f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 1469f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti // Use the InetAddress version so we get the benefit of NET_IPV4_FALLBACK. 1470f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 1471f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 1472f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 1473f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti return Posix_sendtoBytes(env, NULL, javaFd, javaBytes, byteOffset, byteCount, flags, 1474f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetAddress, port); 1475f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti } 1476f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 1477a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti ScopedBytesRO bytes(env, javaBytes); 1478a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (bytes.get() == NULL) { 1479a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 1480a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 1481a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 1482a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti sockaddr_storage ss; 1483a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti socklen_t sa_len; 1484a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 1485a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 1486a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 1487a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 1488a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 1489a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti // We don't need the return value because we'll already have thrown. 1490a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, sa, sa_len); 1491a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti} 1492a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 1493396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) { 1494396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 1495396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1496396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1497895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 1498895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1499895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1500895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1501895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1502895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 1503895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 1504895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1505895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1506895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 1507895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1508895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 1509396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) { 1510396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 1511396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1512396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 1513396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) { 1514396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 1515396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1516396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 15178f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setpgid(JNIEnv* env, jobject, jint pid, int pgid) { 15188f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setpgid", TEMP_FAILURE_RETRY(setpgid(pid, pgid))); 15198f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 15208f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 15218f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setregid(JNIEnv* env, jobject, jint rgid, int egid) { 15228f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setregid", TEMP_FAILURE_RETRY(setregid(rgid, egid))); 15238f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 15248f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 15258f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setreuid(JNIEnv* env, jobject, jint ruid, int euid) { 15268f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setreuid", TEMP_FAILURE_RETRY(setreuid(ruid, euid))); 15278f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 15288f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 15296c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) { 15306c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 15316c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 15326c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 1533c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1534c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1535c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 1536c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 1537c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1538c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1539a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 1540a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1541a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1542b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 1543b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 1544b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1545b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1546b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1547b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1548454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1549454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1550454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1551454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1552454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 15536c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1070 15546c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes// Mac OS didn't support modern multicast APIs until 10.7. 15556c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv*, jobject, jobject, jint, jint, jint) { abort(); } 15566c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 1557df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } 15586c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else 1559b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 1560b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 1561b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 1562b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 1563b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1564b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 1565b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 1566b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 1567438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 15688ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 15698ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 1570438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1571438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 15728ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 1573438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 1574438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 1575e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 1576482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 1577482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { 1578438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 1579438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1580438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1581438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 15828ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1583438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 1584438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1585438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 1586df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 15879634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 1588438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 1589438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 1590438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 1591438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 15928ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 15938ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 15948ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 15958ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1596438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 1597438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 1598438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 1599df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1600df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) { 1601df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller socklen_t sa_len; 1602df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req req; 1603df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memset(&req, 0, sizeof(req)); 1604df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1605df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I"); 1606df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid); 1607df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to join or leave. 1608df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;"); 1609df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid)); 1610df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) { 1611df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1612df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1613df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1614df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to add to the filter. 1615df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;"); 1616df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid)); 1617df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) { 1618df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 1619df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1620df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 1621df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int fd = jniGetFDFromFileDescriptor(env, javaFd); 1622df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 1623df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (rc == -1 && errno == EINVAL) { 1624df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Maybe we're a 32-bit binary talking to a 64-bit kernel? 1625df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // glibc doesn't automatically handle this. 1626df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 1627df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req64 { 1628df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t gsr_interface; 1629df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t my_padding; 1630df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_group; 1631df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_source; 1632df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller }; 1633df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller group_source_req64 req64; 1634df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req64.gsr_interface = req.gsr_interface; 1635df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group)); 1636df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source)); 1637df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 1638df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 1639df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller throwIfMinusOne(env, "setsockopt", rc); 1640df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller} 16416c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif 1642438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 1643c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 1644c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 1645c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 1646c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1647c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 1648c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 1649c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 1650c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1651c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1652c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1653c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 1654c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 1655c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 1656c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1657c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 165839fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 165939fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 1660c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 1661c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 1662c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 1663396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) { 1664396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 1665396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1666396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 166759e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 166859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 166959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 167059e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 167159e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 1672454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 167300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (domain == AF_PACKET) { 167400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti protocol = htons(protocol); // Packet sockets specify the protocol in host byte order. 167500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 1676454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 1677454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 1678454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 1679454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 16803218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 16813218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 16823218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 16833218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 16843218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 16853218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 16863218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 16873218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 16883218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 168947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { 169047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 169147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 169247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 1693721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) { 169459fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 169559fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 169659fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 169759fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1698721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 1699721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); 170059fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 1701721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "statvfs"); 170259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 170359fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1704721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 170559fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 170659fa7163774d6930a174bc038414a4b780581957Elliott Hughes 1707ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { 170852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 1709ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 1710ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 1711ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1712ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 1713763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughesstatic jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) { 1714763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes return env->NewStringUTF(strsignal(signal)); 1715763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes} 1716763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes 1717a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 1718a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 1719a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 1720a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1721a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1722a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 1723a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 1724a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 1725a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 1726a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 1727a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 1728a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 17296fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { 17306fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 17316fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 17326fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 17336fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 17347e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 17356fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 17366fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 17376fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 17386fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 1739bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 1740bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 1741bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 1742bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 1743bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 1744039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 1745039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1746039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 1747039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 1748039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 1749c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) { 175044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 175144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 175244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 17537341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) { 17547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 17559b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 17569b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 17577341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 17587341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 17597341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 17607341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 1761895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) { 1762895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 1763895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 1764895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 1765895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 1766895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 1767895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 1768895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 17699e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 17709e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 17719e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 17729e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes if (rc != -1) { 17739e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 17749e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes env->SetIntField(javaStatus, valueFid, status); 17759e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 17769e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 17779e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 17789e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 17790568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 17800568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 178178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 178278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 178378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 1784f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); 178578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 178678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 1787bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 17888dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 1789bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1790bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1791bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1792f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); 1793bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1794bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 17958f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#define NATIVE_METHOD_OVERLOAD(className, functionName, signature, variant) \ 17968f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline { #functionName, signature, reinterpret_cast<void*>(className ## _ ## functionName ## variant) } 17978f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 1798ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 1799553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), 1800ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), 18013e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen NATIVE_METHOD(Posix, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"), 1802da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 18038f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline NATIVE_METHOD_OVERLOAD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 1804b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), 180544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"), 1806462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), 1807996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 18088f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline NATIVE_METHOD_OVERLOAD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 1809396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 1810396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 1811ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), 1812798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), 1813798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), 181444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"), 181544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"), 18165d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), 1817c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath NATIVE_METHOD(Posix, fcntlInt, "(Ljava/io/FileDescriptor;II)I"), 1818c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 181952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), 18205d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), 18215d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), 182252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), 1823f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 18244f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), 1825396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getegid, "()I"), 1826396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, geteuid, "()I"), 1827396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getgid, "()I"), 1828ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 18294f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 1830482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 18318f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes NATIVE_METHOD(Posix, getpgid, "(I)I"), 1832396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getpid, "()I"), 1833396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getppid, "()I"), 18345d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), 18355d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"), 18360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 18370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 18380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 18390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 18405d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), 18415d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), 18425d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), 1843069525a39125c203b658c805685b6045a7d4dfebElliott Hughes NATIVE_METHOD(Posix, gettid, "()I"), 1844396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, getuid, "()I"), 1845a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), 1846fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 1847a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 18485d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"), 18499a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), 1850a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes NATIVE_METHOD(Posix, kill, "(II)V"), 185144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"), 185204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes NATIVE_METHOD(Posix, link, "(Ljava/lang/String;Ljava/lang/String;)V"), 1853e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), 1854dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), 18555d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 18560f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), 1857c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), 1858f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"), 18597e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, mlock, "(JJ)V"), 18607e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 18617e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, msync, "(JJI)V"), 18627e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes NATIVE_METHOD(Posix, munlock, "(JJ)V"), 18637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes NATIVE_METHOD(Posix, munmap, "(JJ)V"), 18640ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 186575781e7ed9373d97f5959b5b20e7343b8f7e1417Elliott Hughes NATIVE_METHOD(Posix, pipe2, "(I)[Ljava/io/FileDescriptor;"), 18665d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"), 186711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), 18685215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"), 1869e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 1870e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 18710568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 18720b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), 1873bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 187423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 1875c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), 1876a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 18775d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"), 187890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 1879a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti NATIVE_METHOD_OVERLOAD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/SocketAddress;)I", SocketAddress), 1880396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setegid, "(I)V"), 1881895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 1882396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, seteuid, "(I)V"), 1883396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setgid, "(I)V"), 18848f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes NATIVE_METHOD(Posix, setpgid, "(II)V"), 18858f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes NATIVE_METHOD(Posix, setregid, "(II)V"), 18868f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes NATIVE_METHOD(Posix, setreuid, "(II)V"), 18876c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes NATIVE_METHOD(Posix, setsid, "()I"), 1888c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 1889b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 1890454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 1891b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 18925d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), 18935d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"), 18945d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), 18955d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), 1896396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes NATIVE_METHOD(Posix, setuid, "(I)V"), 189759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), 1898454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), 18993218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 19005d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 19015d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), 1902ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), 1903763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"), 1904a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 19056fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes NATIVE_METHOD(Posix, sysconf, "(I)J"), 1906bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"), 1907039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 1908c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich NATIVE_METHOD(Posix, umaskImpl, "(I)I"), 19095d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"), 1910895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"), 19115d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"), 19120568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 1913bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 1914ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 19157cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) { 19167cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); 1917ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1918