libcore_io_Linux.cpp revision 13a70e6c04157064fc8a61ecfcb1d863f29c239d
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
191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h>
20ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h>
210ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h>
226d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong#include <ifaddrs.h>
238f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#include <linux/rtnetlink.h>
24b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h>
254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h>
260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h>
27a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti#include <netpacket/packet.h>
2870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h>
29d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h>
30a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h>
31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h>
32461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h>
337e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h>
345215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h>
3559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h>
3647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h>
37069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h>
380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h>
390ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h>
40bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h>
410ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller#include <sys/un.h>
427341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h>
439e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h>
4490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey#include <sys/xattr.h>
45bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h>
460ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h>
476d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn
48b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers#include <memory>
49efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers
506d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include <android/log.h>
512cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes#include <android-base/file.h>
5255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong#include <android-base/strings.h>
532cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes
546d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "AsynchronousCloseMonitor.h"
556d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ExecStrings.h"
566d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "JNIHelp.h"
576d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "JniConstants.h"
586d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "JniException.h"
596d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "NetworkUtilities.h"
606d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "Portability.h"
616d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ScopedBytes.h"
626d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ScopedLocalRef.h"
636d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ScopedPrimitiveArray.h"
646d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ScopedUtfChars.h"
656d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "toStringArray.h"
666d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn
67efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#ifndef __unused
6837dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers#define __unused __attribute__((__unused__))
69efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#endif
7037dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers
71d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \
72d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        jstring NAME = env->NewStringUTF(EXP); \
73a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh        if ((NAME) == NULL) return NULL;
74d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter {
761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    void operator()(addrinfo* p) const {
771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL.
781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            freeaddrinfo(p);
791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes};
821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
835d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamathstruct c_deleter {
845d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    void operator()(void* p) const {
855d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath        free(p);
865d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    }
875d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath};
885d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath
89b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colittistatic bool isIPv4MappedAddress(const sockaddr *sa) {
90b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    const sockaddr_in6 *sin6 = reinterpret_cast<const sockaddr_in6*>(sa);
91b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    return sa != NULL && sa->sa_family == AF_INET6 &&
92b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti           (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) ||
93b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr));  // We map 0.0.0.0 to ::, so :: is mapped.
94b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti}
95b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti
96b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti/**
97b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * Perform a socket operation that specifies an IP address, possibly falling back from specifying
98b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address as an IPv4-mapped IPv6 address in a struct sockaddr_in6 to specifying it as an IPv4
99b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * address in a struct sockaddr_in.
100b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti *
101b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * This is needed because all sockets created by the java.net APIs are IPv6 sockets, and on those
102b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * sockets, IPv4 operations use IPv4-mapped addresses stored in a struct sockaddr_in6. But sockets
103b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * created using Posix.socket(AF_INET, ...) are IPv4 sockets and only support operations using IPv4
104b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * socket addresses structures.
105b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti */
106b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NET_IPV4_FALLBACK(jni_env, return_type, syscall_name, java_fd, java_addr, port, null_addr_ok, args...) ({ \
107b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    return_type _rc = -1; \
108b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    do { \
109b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        sockaddr_storage _ss; \
110b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        socklen_t _salen; \
111a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh        if ((java_addr) == NULL && (null_addr_ok)) { \
112b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            /* No IP address specified (e.g., sendto() on a connected socket). */ \
113b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            _salen = 0; \
114b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        } else if (!inetAddressToSockaddr(jni_env, java_addr, port, _ss, _salen)) { \
115b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            /* Invalid socket address, return -1. inetAddressToSockaddr has already thrown. */ \
116b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            break; \
117b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        } \
118b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        sockaddr* _sa = _salen ? reinterpret_cast<sockaddr*>(&_ss) : NULL; \
119b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        /* inetAddressToSockaddr always returns an IPv6 sockaddr. Assume that java_fd was created \
120b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti         * by Java API calls, which always create IPv6 socket fds, and pass it in as is. */ \
121b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \
122b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        if (_rc == -1 && errno == EAFNOSUPPORT && _salen && isIPv4MappedAddress(_sa)) { \
123b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            /* We passed in an IPv4 address in an IPv6 sockaddr and the kernel told us that we got \
124b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti             * the address family wrong. Pass in the same address in an IPv4 sockaddr. */ \
125a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh            (jni_env)->ExceptionClear(); \
126b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            if (!inetAddressToSockaddrVerbatim(jni_env, java_addr, port, _ss, _salen)) { \
127b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti                break; \
128b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            } \
129b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            _sa = reinterpret_cast<sockaddr*>(&_ss); \
130b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti            _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \
131b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti        } \
132b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    } while (0); \
133b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    _rc; }) \
134b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti
135996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/**
136f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike
137f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where
138f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or
139f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call
140f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried.
141996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes *
142f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is
143f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1:  a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other
144f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures.
145996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */
1461124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \
1471124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    return_type _rc = -1; \
148b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    int _syscallErrno; \
149996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    do { \
150f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        bool _wasSignaled; \
151996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes        { \
1521124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes            int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \
153f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            AsynchronousCloseMonitor _monitor(_fd); \
1541124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes            _rc = syscall_name(_fd, __VA_ARGS__); \
155f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            _syscallErrno = errno; \
156f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            _wasSignaled = _monitor.wasSignaled(); \
157996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes        } \
158f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        if (_wasSignaled) { \
159f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \
1605d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov            _rc = -1; \
161f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            break; \
162f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        } \
163f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        if (_rc == -1 && _syscallErrno != EINTR) { \
164f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            /* TODO: with a format string we could show the arguments too, like strace(1). */ \
165f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            throwErrnoException(jni_env, # syscall_name); \
166f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            break; \
167f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        } \
168f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \
169b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    if (_rc == -1) { \
170b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti        /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \
171b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti        errno = _syscallErrno; \
172b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    } \
173f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    _rc; })
174f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller
175f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/**
176f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this
177f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal
178f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the
179f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried.
180f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller *
181f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is
182f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled
183f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures.
184f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */
185f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \
186f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return_type _rc = -1; \
187b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    int _syscallErrno; \
18899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller    do { \
18999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        bool _wasSignaled; \
19099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        { \
19199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \
19299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            AsynchronousCloseMonitor _monitor(_fd); \
19399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            _rc = syscall_name(_fd, __VA_ARGS__); \
19499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            _syscallErrno = errno; \
19599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            _wasSignaled = _monitor.wasSignaled(); \
19699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        } \
19799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        if (_wasSignaled) { \
19899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \
19999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            _rc = -1; \
20099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            break; \
20199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        } \
20299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        if (_rc == -1 && _syscallErrno != EINTR) { \
20399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            /* TODO: with a format string we could show the arguments too, like strace(1). */ \
20499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            throwErrnoException(jni_env, # syscall_name); \
20599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller            break; \
20699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller        } \
20799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller    } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \
208b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    if (_rc == -1) { \
209b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti        /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \
210b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti        errno = _syscallErrno; \
211b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti    } \
212996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    _rc; })
213996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes
214b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_OK         true
215b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_FORBIDDEN  false
216b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti
2174f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2,
2184f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        const char* functionName, int error) {
219ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    jthrowable cause = NULL;
220ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (env->ExceptionCheck()) {
221ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        cause = env->ExceptionOccurred();
222ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        env->ExceptionClear();
223ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
224ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
2254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName));
2264f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    if (detailMessage.get() == NULL) {
227f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        // Not really much we can do here. We're probably dead in the water,
228f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        // but let's try to stumble on...
229f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        env->ExceptionClear();
230f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    }
231f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes
232ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    jobject exception;
233ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (cause != NULL) {
2344f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause);
235ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    } else {
2364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error);
237ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
238ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    env->Throw(reinterpret_cast<jthrowable>(exception));
239dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes}
240dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes
2414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) {
2424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    int error = errno;
2434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass,
2444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes            "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V");
2454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass,
2464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes            "<init>", "(Ljava/lang/String;I)V");
2474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error);
2484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
2494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
2504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) {
251c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception.
252c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>",
253c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes                                            "(Ljava/lang/String;ILjava/lang/Throwable;)V");
254c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>",
255c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes                                            "(Ljava/lang/String;I)V");
256c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  if (errno != 0) {
25775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to
25875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES
25975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a
26075cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM.
26175cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // http://code.google.com/p/android/issues/detail?id=15722
2624f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        throwErrnoException(env, functionName);
2634f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        // Deliberately fall through to throw another exception...
2644f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
2654f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error);
2664f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
2674f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
268dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t>
2697e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) {
270dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == rc_t(-1)) {
2717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, name);
272dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    }
273dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    return rc;
27447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
27547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
2768dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT>
277bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec {
278bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic:
279bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) {
280bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
281bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
282bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) {
283bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        // We can't delete our local references until after the I/O, so make sure we have room.
284bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) {
285bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
286bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
287bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        ScopedIntArrayRO offsets(mEnv, javaOffsets);
288bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (offsets.get() == NULL) {
289bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
290bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
291bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        ScopedIntArrayRO byteCounts(mEnv, javaByteCounts);
292bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (byteCounts.get() == NULL) {
293bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
294bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
295bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too.
296d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX).
297bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        for (size_t i = 0; i < mBufferCount; ++i) {
298e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes            jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref.
2998dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            mScopedBuffers.push_back(new ScopedT(mEnv, buffer));
3008dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get());
301bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            if (ptr == NULL) {
302bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes                return false;
303bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            }
304bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            struct iovec iov;
305bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]);
306bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            iov.iov_len = byteCounts[i];
307bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            mIoVec.push_back(iov);
308bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
309bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return true;
310bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
311bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
312bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    ~IoVec() {
3138dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes        for (size_t i = 0; i < mScopedBuffers.size(); ++i) {
3148dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            delete mScopedBuffers[i];
315bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
316bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        mEnv->PopLocalFrame(NULL);
317bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
318bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
319bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    iovec* get() {
320bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return &mIoVec[0];
321bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
322bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
323bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    size_t size() {
324bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return mBufferCount;
325bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
326bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
327bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate:
328bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    JNIEnv* mEnv;
329bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    size_t mBufferCount;
330bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    std::vector<iovec> mIoVec;
3318dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    std::vector<ScopedT*> mScopedBuffers;
332bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes};
333bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
3340ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller/**
3352550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * Returns a jbyteArray containing the sockaddr_un.sun_path from ss. As per unix(7) sa_len should be
3362550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * the length of ss as returned by getsockname(2), getpeername(2), or accept(2).
3372550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * If the returned array is of length 0 the sockaddr_un refers to an unnamed socket.
3382550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * A null pointer is returned in the event of an error. See unix(7) for more information.
3390ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller */
3402550a252387631b49a00d2ee5587717cd2a6dda3Neil Fullerstatic jbyteArray getUnixSocketPath(JNIEnv* env, const sockaddr_storage& ss,
3412550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        const socklen_t& sa_len) {
3420ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (ss.ss_family != AF_UNIX) {
3430ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
3440ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller                "getUnixSocketPath unsupported ss_family: %i", ss.ss_family);
3452550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        return NULL;
3460ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
3472550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller
3480ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    const struct sockaddr_un* un_addr = reinterpret_cast<const struct sockaddr_un*>(&ss);
3492550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // The length of sun_path is sa_len minus the length of the overhead (ss_family).
3502550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // See unix(7) for details. This calculation must match that of socket_make_sockaddr_un() in
3512550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // socket_local_client.c and javaUnixSocketAddressToSockaddr() to interoperate.
3522550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    size_t pathLength = sa_len - offsetof(struct sockaddr_un, sun_path);
3532550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller
3542550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    jbyteArray javaSunPath = env->NewByteArray(pathLength);
3552550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    if (javaSunPath == NULL) {
3562550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        return NULL;
3570ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
3582550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller
3592550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    if (pathLength > 0) {
3602550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        env->SetByteArrayRegion(javaSunPath, 0, pathLength,
3612550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller                reinterpret_cast<const jbyte*>(&un_addr->sun_path));
3622550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    }
3632550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    return javaSunPath;
3640ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller}
3650ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
3660ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss, const socklen_t sa_len) {
3670ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) {
3688f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        jint port;
3698f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        jobject inetAddress = sockaddrToInetAddress(env, ss, &port);
3708f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        if (inetAddress == NULL) {
3718f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline            return NULL;  // Exception already thrown.
3728f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        }
3738f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass,
3748f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline                "<init>", "(Ljava/net/InetAddress;I)V");
3758f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port);
3760ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    } else if (ss.ss_family == AF_UNIX) {
3770ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        static jmethodID ctor = env->GetMethodID(JniConstants::unixSocketAddressClass,
3780ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller                "<init>", "([B)V");
3790ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
3802550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len);
3812550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        if (!javaSunPath) {
3820ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller            return NULL;
3830ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        }
3842550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        return env->NewObject(JniConstants::unixSocketAddressClass, ctor, javaSunPath);
3858f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    } else if (ss.ss_family == AF_NETLINK) {
3868f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        const struct sockaddr_nl* nl_addr = reinterpret_cast<const struct sockaddr_nl*>(&ss);
3878f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        static jmethodID ctor = env->GetMethodID(JniConstants::netlinkSocketAddressClass,
3888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline                "<init>", "(II)V");
3896e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak        return env->NewObject(JniConstants::netlinkSocketAddressClass, ctor,
3906e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak                static_cast<jint>(nl_addr->nl_pid),
3918f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline                static_cast<jint>(nl_addr->nl_groups));
39200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    } else if (ss.ss_family == AF_PACKET) {
39300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        const struct sockaddr_ll* sll = reinterpret_cast<const struct sockaddr_ll*>(&ss);
39400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        static jmethodID ctor = env->GetMethodID(JniConstants::packetSocketAddressClass,
39500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                "<init>", "(SISB[B)V");
39600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(sll->sll_halen));
39700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        if (byteArray.get() == NULL) {
39800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            return NULL;
39900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        }
40000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        env->SetByteArrayRegion(byteArray.get(), 0, sll->sll_halen,
40100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                reinterpret_cast<const jbyte*>(sll->sll_addr));
40200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        jobject packetSocketAddress = env->NewObject(JniConstants::packetSocketAddressClass, ctor,
40300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                static_cast<jshort>(ntohs(sll->sll_protocol)),
40400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                static_cast<jint>(sll->sll_ifindex),
40500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                static_cast<jshort>(sll->sll_hatype),
40600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                static_cast<jbyte>(sll->sll_pkttype),
40700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti                byteArray.get());
40800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        return packetSocketAddress;
40900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    }
41000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", "unsupported ss_family: %d",
41100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            ss.ss_family);
4128f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    return NULL;
4130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
4140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
415d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) {
416d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_name, pw.pw_name);
417d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_dir, pw.pw_dir);
418d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_shell, pw.pw_shell);
419d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>",
420d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V");
421d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return env->NewObject(JniConstants::structPasswdClass, ctor,
422d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell);
423d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
424d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
42513a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kongstatic jobject makeStructStat(JNIEnv* env, const struct stat64& sb) {
42647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>",
42747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes            "(JJIJIIJJJJJJJ)V");
42847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return env->NewObject(JniConstants::structStatClass, ctor,
42959fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino),
43059fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink),
43159fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid),
43259fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size),
43359fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime),
43459fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize),
43559fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_blocks));
43659fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
43759fa7163774d6930a174bc038414a4b780581957Elliott Hughes
438721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) {
439721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>",
440721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes            "(JJJJJJJJJJJ)V");
441721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return env->NewObject(JniConstants::structStatVfsClass, ctor,
442721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bsize),
443721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_frsize),
444721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_blocks),
445721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bfree),
446721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bavail),
447721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_files),
448721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_ffree),
449721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_favail),
450721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_fsid),
451721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_flag),
452efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes                          static_cast<jlong>(sb.f_namemax));
45347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
45447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
4550a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) {
4560a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V");
4570a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger);
4580a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
4590a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
4600a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) {
4610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V");
4620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return env->NewObject(JniConstants::structTimevalClass, ctor,
4630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes            static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec));
4640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
4650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
4663deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) {
467482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V");
468482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid);
469482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
470482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
4717341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) {
472d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(sysname, buf.sysname);
473d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(nodename, buf.nodename);
474d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(release, buf.release);
475d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(version, buf.version);
476d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(machine, buf.machine);
4777341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>",
4787341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes            "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
4797341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    return env->NewObject(JniConstants::structUtsnameClass, ctor,
4807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes            sysname, nodename, release, version, machine);
4817341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes};
4827341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes
483a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) {
484a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    ScopedUtfChars interfaceName(env, javaInterfaceName);
485a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (interfaceName.c_str() == NULL) {
486a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return false;
487a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
488a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    memset(&req, 0, sizeof(req));
489a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name));
490a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    req.ifr_name[sizeof(req.ifr_name) - 1] = '\0';
491a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    return true;
492a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
493a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
4940ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillUnixSocketAddress(JNIEnv* env, jobject javaUnixSocketAddress,
4950ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        const sockaddr_storage& ss, const socklen_t& sa_len) {
4960ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (javaUnixSocketAddress == NULL) {
4970ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return true;
4980ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
4992550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len);
5002550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    if (!javaSunPath) {
5010ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return false;
5020ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
5030ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5040ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    static jfieldID sunPathFid =
5050ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller            env->GetFieldID(JniConstants::unixSocketAddressClass, "sun_path", "[B");
5062550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    env->SetObjectField(javaUnixSocketAddress, sunPathFid, javaSunPath);
5070ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    return true;
5080ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller}
5090ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5100ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillInetSocketAddress(JNIEnv* env, jobject javaInetSocketAddress,
5110ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        const sockaddr_storage& ss) {
5120ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (javaInetSocketAddress == NULL) {
513553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return true;
514553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
515553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    // Fill out the passed-in InetSocketAddress with the sender's IP address and port number.
516553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    jint port;
517553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    jobject sender = sockaddrToInetAddress(env, ss, &port);
518553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    if (sender == NULL) {
519553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return false;
520553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
5214cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder",
5224cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath                                                "Ljava/net/InetSocketAddress$InetSocketAddressHolder;");
523ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski    jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid);
524ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski
5254cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass,
5264cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath                                                 "addr", "Ljava/net/InetAddress;");
527ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski    static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I");
528ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski    env->SetObjectField(holder, addressFid, sender);
529ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski    env->SetIntField(holder, portFid, port);
530553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    return true;
531553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes}
532553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes
5330ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillSocketAddress(JNIEnv* env, jobject javaSocketAddress, const sockaddr_storage& ss,
5340ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        const socklen_t& sa_len) {
5350ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (javaSocketAddress == NULL) {
5360ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return true;
5370ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
5380ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5390ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) {
5400ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return fillInetSocketAddress(env, javaSocketAddress, ss);
5410ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) {
5420ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return fillUnixSocketAddress(env, javaSocketAddress, ss, sa_len);
5430ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
5440ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    jniThrowException(env, "java/lang/UnsupportedOperationException",
5450ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller            "unsupported SocketAddress subclass");
5460ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    return false;
5470ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5480ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller}
5490ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
550f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic void javaInetSocketAddressToInetAddressAndPort(
551f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        JNIEnv* env, jobject javaInetSocketAddress, jobject& javaInetAddress, jint& port) {
5524cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder",
5534cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath                                                "Ljava/net/InetSocketAddress$InetSocketAddressHolder;");
5544cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid);
5554cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath
5568f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    static jfieldID addressFid = env->GetFieldID(
5574cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath            JniConstants::inetSocketAddressHolderClass, "addr", "Ljava/net/InetAddress;");
5584cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I");
5594cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath
5604cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    javaInetAddress = env->GetObjectField(holder, addressFid);
5614cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath    port = env->GetIntField(holder, portFid);
562f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti}
563f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti
564f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic bool javaInetSocketAddressToSockaddr(
565f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) {
566f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    jobject javaInetAddress;
567f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    jint port;
568f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port);
569f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    return inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len);
5708f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline}
5718f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
5728f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaNetlinkSocketAddressToSockaddr(
5738f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) {
5748f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    static jfieldID nlPidFid = env->GetFieldID(
5758f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline            JniConstants::netlinkSocketAddressClass, "nlPortId", "I");
5768f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    static jfieldID nlGroupsFid = env->GetFieldID(
5778f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline            JniConstants::netlinkSocketAddressClass, "nlGroupsMask", "I");
5788f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
5798f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    sockaddr_nl *nlAddr = reinterpret_cast<sockaddr_nl *>(&ss);
5808f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    nlAddr->nl_family = AF_NETLINK;
5818f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    nlAddr->nl_pid = env->GetIntField(javaSocketAddress, nlPidFid);
5828f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    nlAddr->nl_groups = env->GetIntField(javaSocketAddress, nlGroupsFid);
5838f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    sa_len = sizeof(sockaddr_nl);
5848f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    return true;
5858f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline}
5868f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
5870ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool javaUnixSocketAddressToSockaddr(
5880ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        JNIEnv* env, jobject javaUnixSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) {
5890ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    static jfieldID sunPathFid = env->GetFieldID(
5900ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller            JniConstants::unixSocketAddressClass, "sun_path", "[B");
5910ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5920ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    struct sockaddr_un* un_addr = reinterpret_cast<struct sockaddr_un*>(&ss);
5932550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    memset (un_addr, 0, sizeof(sockaddr_un));
5940ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    un_addr->sun_family = AF_UNIX;
5950ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
5960ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    jbyteArray javaSunPath = (jbyteArray) env->GetObjectField(javaUnixSocketAddress, sunPathFid);
5970ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    jsize pathLength = env->GetArrayLength(javaSunPath);
5982550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    if ((size_t) pathLength > sizeof(sockaddr_un::sun_path)) {
5992550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
6002550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller                "sun_path too long: max=%i, is=%i",
6012550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller                sizeof(sockaddr_un::sun_path), pathLength);
6022550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller        return false;
6030ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
6042550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    env->GetByteArrayRegion(javaSunPath, 0, pathLength, (jbyte*) un_addr->sun_path);
6052550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // sa_len is sun_path plus the length of the overhead (ss_family_t). See unix(7) for
6062550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // details. This calculation must match that of socket_make_sockaddr_un() in
6072550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    // socket_local_client.c and getUnixSocketPath() to interoperate.
6082550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller    sa_len = offsetof(struct sockaddr_un, sun_path) + pathLength;
6090ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    return true;
6100ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller}
6110ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller
61200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colittistatic bool javaPacketSocketAddressToSockaddr(
61300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) {
61400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    static jfieldID protocolFid = env->GetFieldID(
61500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            JniConstants::packetSocketAddressClass, "sll_protocol", "S");
61600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    static jfieldID ifindexFid = env->GetFieldID(
61700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            JniConstants::packetSocketAddressClass, "sll_ifindex", "I");
61800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    static jfieldID hatypeFid = env->GetFieldID(
61900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            JniConstants::packetSocketAddressClass, "sll_hatype", "S");
62000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    static jfieldID pkttypeFid = env->GetFieldID(
62100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            JniConstants::packetSocketAddressClass, "sll_pkttype", "B");
62200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    static jfieldID addrFid = env->GetFieldID(
62300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            JniConstants::packetSocketAddressClass, "sll_addr", "[B");
62400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti
62500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sockaddr_ll *sll = reinterpret_cast<sockaddr_ll *>(&ss);
62600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sll->sll_family = AF_PACKET;
627e0273519773d7b14680fe0aa8bc180836042f245Lorenzo Colitti    sll->sll_protocol = htons(env->GetShortField(javaSocketAddress, protocolFid));
62800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sll->sll_ifindex = env->GetIntField(javaSocketAddress, ifindexFid);
62900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sll->sll_hatype = env->GetShortField(javaSocketAddress, hatypeFid);
63000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sll->sll_pkttype = env->GetByteField(javaSocketAddress, pkttypeFid);
63100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti
63200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    jbyteArray sllAddr = (jbyteArray) env->GetObjectField(javaSocketAddress, addrFid);
63300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    if (sllAddr == NULL) {
63400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        sll->sll_halen = 0;
63500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        memset(&sll->sll_addr, 0, sizeof(sll->sll_addr));
63600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    } else {
63700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        jsize len = env->GetArrayLength(sllAddr);
63800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        if ((size_t) len > sizeof(sll->sll_addr)) {
63900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti            len = sizeof(sll->sll_addr);
64000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        }
64100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        sll->sll_halen = len;
64200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        env->GetByteArrayRegion(sllAddr, 0, len, (jbyte*) sll->sll_addr);
64300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    }
64400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    sa_len = sizeof(sockaddr_ll);
64500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    return true;
64600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti}
64700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti
6488f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaSocketAddressToSockaddr(
6498f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) {
6508f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    if (javaSocketAddress == NULL) {
6518f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        jniThrowNullPointerException(env, NULL);
6528f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return false;
6538f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    }
6548f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
6558f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    if (env->IsInstanceOf(javaSocketAddress, JniConstants::netlinkSocketAddressClass)) {
6568f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return javaNetlinkSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len);
6578f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) {
6588f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return javaInetSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len);
65900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::packetSocketAddressClass)) {
66000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        return javaPacketSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len);
6610ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) {
6620ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller        return javaUnixSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len);
6638f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    }
6648f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    jniThrowException(env, "java/lang/UnsupportedOperationException",
6658f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline            "unsupported SocketAddress subclass");
6668f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    return false;
6678f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline}
6688f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
66947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) {
67047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    ScopedUtfChars path(env, javaPath);
67147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    if (path.c_str() == NULL) {
67247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
67347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
67413a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong    struct stat64 sb;
67513a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong    int rc = isLstat ? TEMP_FAILURE_RETRY(lstat64(path.c_str(), &sb))
67613a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong                     : TEMP_FAILURE_RETRY(stat64(path.c_str(), &sb));
677dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
6787e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, isLstat ? "lstat" : "stat");
67947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
68047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
68147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return makeStructStat(env, sb);
682ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
683ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
684482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) {
685482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
686482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  sockaddr_storage ss;
687482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  sockaddr* sa = reinterpret_cast<sockaddr*>(&ss);
688482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  socklen_t byteCount = sizeof(ss);
689482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  memset(&ss, 0, byteCount);
690482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount))
691482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes      : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount));
692482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  if (rc == -1) {
693482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    throwErrnoException(env, is_sockname ? "getsockname" : "getpeername");
694482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return NULL;
695482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  }
6960ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller  return makeSocketAddress(env, ss, byteCount);
697482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
698482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
699d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd {
700d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic:
7013b527308aae5a23ac71cf5f637b4595a9b55a2dbChih-Hung Hsieh    explicit Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) {
702d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX);
703d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        mBuffer.reset(new char[mBufferSize]);
704d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
705d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
706d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject getpwnam(const char* name) {
707d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult));
708d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
709d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
710d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject getpwuid(uid_t uid) {
711d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult));
712d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
713d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
714d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd* get() {
715d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return mResult;
716d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
717d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
718d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate:
719d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject process(const char* syscall, int error) {
720d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        if (mResult == NULL) {
721d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            errno = error;
722d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            throwErrnoException(mEnv, syscall);
723d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            return NULL;
724d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        }
725d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return makeStructPasswd(mEnv, *mResult);
726d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
727d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
728d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    JNIEnv* mEnv;
729b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers    std::unique_ptr<char[]> mBuffer;
730d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    size_t mBufferSize;
731d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd mPwd;
732d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd* mResult;
733d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes};
734d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
7350ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) {
736553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    sockaddr_storage ss;
737553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    socklen_t sl = sizeof(ss);
738553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    memset(&ss, 0, sizeof(ss));
7390ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    sockaddr* peer = (javaSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL;
7400ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    socklen_t* peerLength = (javaSocketAddress != NULL) ? &sl : 0;
7411124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength);
7420ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    if (clientFd == -1 || !fillSocketAddress(env, javaSocketAddress, ss, *peerLength)) {
743553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        close(clientFd);
744553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return NULL;
745553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
746553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL;
747553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes}
748553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes
749ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) {
750ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    ScopedUtfChars path(env, javaPath);
751ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (path.c_str() == NULL) {
752ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        return JNI_FALSE;
753ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
75447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode));
755dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
7567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "access");
757dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    }
758ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return (rc == 0);
759ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
760ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
761da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) {
7621124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    // We don't need the return value because we'll already have thrown.
763b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    (void) NET_IPV4_FALLBACK(env, int, bind, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN);
764da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes}
765da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes
7668f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic void Posix_bindSocketAddress(
7678f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) {
7688f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    sockaddr_storage ss;
7698f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    socklen_t sa_len;
7708f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) {
7718f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return;  // Exception already thrown.
7728f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    }
7738f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
7748f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss);
7758f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    // We don't need the return value because we'll already have thrown.
7768f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len);
7778f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline}
7788f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
779b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) {
780b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    ScopedUtfChars path(env, javaPath);
781b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    if (path.c_str() == NULL) {
782b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes        return;
783b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    }
784b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode)));
785b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes}
786b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes
78744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) {
78844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    ScopedUtfChars path(env, javaPath);
78944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    if (path.c_str() == NULL) {
79044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes        return;
79144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    }
79244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid)));
79344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
79444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
795462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) {
796462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Get the FileDescriptor's 'fd' field and clear it.
797462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // We need to do this before we can throw an IOException (http://b/3222087).
798462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
799462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    jniSetFileDescriptorOfFD(env, javaFd, -1);
800462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes
801462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Even if close(2) fails with EINTR, the fd will have been closed.
802462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd.
803462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html
804462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    throwIfMinusOne(env, "close", close(fd));
805462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes}
806462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes
807996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) {
808b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    (void) NET_IPV4_FALLBACK(env, int, connect, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN);
809996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes}
810996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes
8118f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic void Posix_connectSocketAddress(
8128f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) {
8138f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    sockaddr_storage ss;
8148f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    socklen_t sa_len;
8158f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) {
8168f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline        return;  // Exception already thrown.
8178f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    }
8188f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
8198f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss);
8208f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    // We don't need the return value because we'll already have thrown.
8218f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len);
8228f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline}
8238f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
824396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) {
825396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd);
826396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd)));
827396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL;
828396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
829396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
830396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) {
831396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd);
832396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd)));
833396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL;
834396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
835396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
836ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) {
837ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    extern char** environ; // Standard, but not in any header file.
838ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return toStringArray(env, environ);
839ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
840ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
841798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) {
842798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    ScopedUtfChars path(env, javaFilename);
843798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    if (path.c_str() == NULL) {
844798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich        return;
845798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    }
846798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
847ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings argv(env, javaArgv);
848ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings envp(env, javaEnvp);
849fa542091e45db699a937c5ac0191194405107827Elliott Hughes    TEMP_FAILURE_RETRY(execve(path.c_str(), argv.get(), envp.get()));
850798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
851798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    throwErrnoException(env, "execve");
852798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich}
853798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
854798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) {
855798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    ScopedUtfChars path(env, javaFilename);
856798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    if (path.c_str() == NULL) {
857798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich        return;
858798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    }
859798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
860ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings argv(env, javaArgv);
861fa542091e45db699a937c5ac0191194405107827Elliott Hughes    TEMP_FAILURE_RETRY(execv(path.c_str(), argv.get()));
862798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
863798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    throwErrnoException(env, "execv");
864798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich}
865798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
86644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) {
86744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
86844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode)));
86944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
87044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
87144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) {
87244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
87344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid)));
87444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
87544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
876fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) {
877fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S");
878fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S");
879fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J");
880fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J");
881fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I");
882fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
883fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    struct flock64 lock;
884fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    memset(&lock, 0, sizeof(lock));
885fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_type = env->GetShortField(javaFlock, typeFid);
886fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_whence = env->GetShortField(javaFlock, whenceFid);
887fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_start = env->GetLongField(javaFlock, startFid);
888fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_len = env->GetLongField(javaFlock, lenFid);
889fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_pid = env->GetIntField(javaFlock, pidFid);
890fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
8918add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller    int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock);
892fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    if (rc != -1) {
893fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetShortField(javaFlock, typeFid, lock.l_type);
894fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetShortField(javaFlock, whenceFid, lock.l_whence);
895fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetLongField(javaFlock, startFid, lock.l_start);
896fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetLongField(javaFlock, lenFid, lock.l_len);
897fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetIntField(javaFlock, pidFid, lock.l_pid);
898fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    }
899fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    return rc;
900fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes}
901fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
902c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamathstatic jint Posix_fcntlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jint arg) {
903c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    int fd = jniGetFDFromFileDescriptor(env, javaFd);
904c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg)));
905c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath}
906c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath
907c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamathstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) {
908c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    int fd = jniGetFDFromFileDescriptor(env, javaFd);
909c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd)));
910c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath}
911c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath
91252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) {
91352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
9147e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd)));
91552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes}
91652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes
91747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) {
91847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
91913a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong    struct stat64 sb;
92013a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong    int rc = TEMP_FAILURE_RETRY(fstat64(fd, &sb));
921dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
9227e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "fstat");
92347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
92447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
92547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return makeStructStat(env, sb);
92647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
92747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
928721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) {
92959fa7163774d6930a174bc038414a4b780581957Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
930721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    struct statvfs sb;
931721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb));
93259fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (rc == -1) {
933721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes        throwErrnoException(env, "fstatvfs");
93459fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
93559fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
936721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return makeStructStatVfs(env, sb);
93759fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
93859fa7163774d6930a174bc038414a4b780581957Elliott Hughes
93952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) {
94052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
9417e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd)));
942f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes}
943f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes
944f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) {
945f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
9467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length)));
94752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes}
94852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes
9494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) {
9504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    return env->NewStringUTF(gai_strerror(error));
9514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
9524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
9533e58734d651080009c9190c7062837fca5c7cf4ePaul Jensenstatic jobjectArray Posix_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode,
9543e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen        jobject javaHints, jint netId) {
9551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    ScopedUtfChars node(env, javaNode);
9561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (node.c_str() == NULL) {
9571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
9581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
9591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
9601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I");
9611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I");
9621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I");
9631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I");
9641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
9651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    addrinfo hints;
9661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    memset(&hints, 0, sizeof(hints));
9671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_flags = env->GetIntField(javaHints, flagsFid);
9681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_family = env->GetIntField(javaHints, familyFid);
9691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_socktype = env->GetIntField(javaHints, socktypeFid);
9701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_protocol = env->GetIntField(javaHints, protocolFid);
9711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
9721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    addrinfo* addressList = NULL;
97375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes    errno = 0;
9743e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen    int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList);
975b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers    std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList);
9761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (rc != 0) {
9773e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen        throwGaiException(env, "android_getaddrinfo", rc);
9781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
9791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
9801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
9811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Count results so we know how to size the output array.
9821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    int addressCount = 0;
9831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) {
9841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) {
9851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            ++addressCount;
9861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        } else {
9873e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen            ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family);
9881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
9891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
9901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (addressCount == 0) {
9911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
9921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
9931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
9941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Prepare output array.
9951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL);
9961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (result == NULL) {
9971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
9981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
9991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
10001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Examine returned addresses one by one, save them in the output array.
10011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    int index = 0;
10021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) {
10031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) {
10041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            // Unknown address family. Skip this address.
10053e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen            ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family);
10061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            continue;
10071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
10081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
10091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        // Convert each IP address into a Java byte array.
1010482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes        sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr);
101123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes        ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL));
10121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (inetAddress.get() == NULL) {
10131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            return NULL;
10141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
10151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        env->SetObjectArrayElement(result, index, inetAddress.get());
10161c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        ++index;
10171c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
10181c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    return result;
10191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}
10201c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
1021396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) {
1022564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes    return getegid();
1023396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1024396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1025396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) {
1026564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes    return geteuid();
1027396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1028396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1029396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) {
1030564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes    return getgid();
1031396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1032396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1033ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) {
1034ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    ScopedUtfChars name(env, javaName);
1035ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    if (name.c_str() == NULL) {
1036ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes        return NULL;
1037ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    }
1038ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    return env->NewStringUTF(getenv(name.c_str()));
1039ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}
1040ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
10414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) {
10424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    sockaddr_storage ss;
1043482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
1044482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) {
10454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        return NULL;
10464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
10474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN.
104875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes    errno = 0;
1049482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags);
10504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    if (rc != 0) {
10514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        throwGaiException(env, "getnameinfo", rc);
10524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        return NULL;
10534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
10544f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    return env->NewStringUTF(buf);
10554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
10564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
1057482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) {
1058482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return doGetSockName(env, javaFd, false);
1059482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
1060482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
10618f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic jint Posix_getpgid(JNIEnv* env, jobject, jint pid) {
10628f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    return throwIfMinusOne(env, "getpgid", TEMP_FAILURE_RETRY(getpgid(pid)));
10638f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes}
10648f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes
1065396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) {
1066fa542091e45db699a937c5ac0191194405107827Elliott Hughes    return TEMP_FAILURE_RETRY(getpid());
1067396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1068396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1069396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) {
1070fa542091e45db699a937c5ac0191194405107827Elliott Hughes    return TEMP_FAILURE_RETRY(getppid());
1071396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1072396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1073d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) {
1074d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    ScopedUtfChars name(env, javaName);
1075d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    if (name.c_str() == NULL) {
1076d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return NULL;
1077d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
1078d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return Passwd(env).getpwnam(name.c_str());
1079d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
1080d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
1081d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) {
1082d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return Passwd(env).getpwuid(uid);
1083d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
1084d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
10850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) {
1086482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return doGetSockName(env, javaFd, true);
10870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
10880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
10890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
10900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
10910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    u_char result = 0;
10920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(result);
10930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size)));
10940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return result;
10950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
10960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
10970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
10980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
10990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    sockaddr_storage ss;
11000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&ss, 0, sizeof(ss));
11010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF.
11020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss);
11030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(sa->sin_addr);
11040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size));
11050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
11060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
11070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
11080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
1109482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, ss, NULL);
11100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
11110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
11120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
11130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
11140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    jint result = 0;
11150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(result);
11160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size)));
11170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return result;
11180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
11190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
11200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
11210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
11220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    struct linger l;
11230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(l);
11240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&l, 0, size);
11250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size));
11260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
11270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
11280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
11290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
11300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return makeStructLinger(env, l);
11310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
11320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
11330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
11340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
11350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    struct timeval tv;
11360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(tv);
11370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&tv, 0, size);
11380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size));
11390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
11400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
11410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
11420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
11430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return makeStructTimeval(env, tv);
11440a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
11450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
1146482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
1147482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
1148482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  struct ucred u;
1149482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  socklen_t size = sizeof(u);
1150482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  memset(&u, 0, size);
1151482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size));
1152482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  if (rc == -1) {
1153482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    throwErrnoException(env, "getsockopt");
1154482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return NULL;
1155482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  }
1156482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return makeStructUcred(env, u);
1157482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
1158482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
11593deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_gettid(JNIEnv* env __unused, jobject) {
1160efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes#if defined(__BIONIC__)
1161fa542091e45db699a937c5ac0191194405107827Elliott Hughes  return TEMP_FAILURE_RETRY(gettid());
11623deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else
1163069525a39125c203b658c805685b6045a7d4dfebElliott Hughes  return syscall(__NR_gettid);
11643deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif
1165069525a39125c203b658c805685b6045a7d4dfebElliott Hughes}
1166069525a39125c203b658c805685b6045a7d4dfebElliott Hughes
1167396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) {
1168564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes    return getuid();
1169396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1170396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
117140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kongstatic jbyteArray Posix_getxattr(JNIEnv* env, jobject, jstring javaPath,
117240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        jstring javaName) {
117390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars path(env, javaPath);
117490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (path.c_str() == NULL) {
117540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        return NULL;
117690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
117790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars name(env, javaName);
117890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (name.c_str() == NULL) {
117940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        return NULL;
118090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
118140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong
118240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong    while (true) {
118340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        // Get the current size of the named extended attribute.
118440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        ssize_t valueLength;
118540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        if ((valueLength = getxattr(path.c_str(), name.c_str(), NULL, 0)) < 0) {
118640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            throwErrnoException(env, "getxattr");
118740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            return NULL;
118840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        }
118940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong
119040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        // Create the actual byte array.
119140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        std::vector<char> buf(valueLength);
119240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        if ((valueLength = getxattr(path.c_str(), name.c_str(), buf.data(), valueLength)) < 0) {
119340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            if (errno == ERANGE) {
119440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong                // The attribute value has changed since last getxattr call and buf no longer fits,
119540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong                // try again.
119640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong                continue;
119740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            }
119840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            throwErrnoException(env, "getxattr");
119940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            return NULL;
120040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        }
120140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        jbyteArray array = env->NewByteArray(valueLength);
120240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        if (array == NULL) {
120340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong            return NULL;
120440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        }
120540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        env->SetByteArrayRegion(array, 0, valueLength, reinterpret_cast<const jbyte*>(buf.data()));
120640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong        return array;
120790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
120890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey}
120990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey
12106d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kongstatic jobjectArray Posix_getifaddrs(JNIEnv* env, jobject) {
12116d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    static jmethodID ctor = env->GetMethodID(JniConstants::structIfaddrs, "<init>",
12126d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            "(Ljava/lang/String;ILjava/net/InetAddress;Ljava/net/InetAddress;Ljava/net/InetAddress;[B)V");
12136d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12146d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    ifaddrs* ifaddr;
12156d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    int rc = TEMP_FAILURE_RETRY(getifaddrs(&ifaddr));
12166d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    if (rc == -1) {
12176d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        throwErrnoException(env, "getifaddrs");
12186d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        return NULL;
12196d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    }
12206d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    std::unique_ptr<ifaddrs, decltype(&freeifaddrs)> ifaddrPtr(ifaddr, freeifaddrs);
12216d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12226d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    // Count results so we know how to size the output array.
12236d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    jint ifCount = 0;
12246d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
12256d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        ++ifCount;
12266d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    }
12276d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12286d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    // Prepare output array.
12296d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    jobjectArray result = env->NewObjectArray(ifCount, JniConstants::structIfaddrs, NULL);
12306d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    if (result == NULL) {
12316d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        return NULL;
12326d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    }
12336d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12346d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    // Traverse the list and populate the output array.
12356d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    int index = 0;
12366d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next, ++index) {
12376d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        TO_JAVA_STRING(name, ifa->ifa_name);
12386d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        jint flags = ifa->ifa_flags;
12396d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        sockaddr_storage* interfaceAddr =
12406d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            reinterpret_cast<sockaddr_storage*>(ifa->ifa_addr);
12416d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        sockaddr_storage* netmaskAddr =
12426d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            reinterpret_cast<sockaddr_storage*>(ifa->ifa_netmask);
12436d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        sockaddr_storage* broadAddr =
12446d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            reinterpret_cast<sockaddr_storage*>(ifa->ifa_broadaddr);
12456d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12466d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        jobject addr, netmask, broad;
12476d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        jbyteArray hwaddr = NULL;
12486d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        if (interfaceAddr != NULL) {
12496d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            switch (interfaceAddr->ss_family) {
12506d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            case AF_INET:
12516d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            case AF_INET6:
12526d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                // IPv4 / IPv6.
12536d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                // interfaceAddr and netmaskAddr are never null.
12546d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                if ((addr = sockaddrToInetAddress(env, *interfaceAddr, NULL)) == NULL) {
12556d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    return NULL;
12566d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                }
12576d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                if ((netmask = sockaddrToInetAddress(env, *netmaskAddr, NULL)) == NULL) {
12586d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    return NULL;
12596d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                }
12606d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                if (broadAddr != NULL && (ifa->ifa_flags & IFF_BROADCAST)) {
12616d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    if ((broad = sockaddrToInetAddress(env, *broadAddr, NULL)) == NULL) {
12626d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                        return NULL;
12636d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    }
12646d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                } else {
12656d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    broad = NULL;
12666d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                }
12676d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                break;
12686d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            case AF_PACKET:
12696d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                // Raw Interface.
12706d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                sockaddr_ll* sll = reinterpret_cast<sockaddr_ll*>(ifa->ifa_addr);
12716d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12726d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                bool allZero = true;
12736d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                for (int i = 0; i < sll->sll_halen; ++i) {
12746d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    if (sll->sll_addr[i] != 0) {
12756d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                        allZero = false;
12766d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                        break;
12776d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    }
12786d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                }
12796d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12806d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                if (!allZero) {
12816d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    hwaddr = env->NewByteArray(sll->sll_halen);
12826d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    if (hwaddr == NULL) {
12836d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                        return NULL;
12846d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    }
12856d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                    env->SetByteArrayRegion(hwaddr, 0, sll->sll_halen,
12866d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                                            reinterpret_cast<const jbyte*>(sll->sll_addr));
12876d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                }
12886d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                addr = netmask = broad = NULL;
12896d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                break;
12906d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            }
12916d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        } else {
12926d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            // Preserve the entry even if the interface has no interface address.
12936d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            // http://b/29243557/
12946d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong            addr = netmask = broad = NULL;
12956d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        }
12966d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
12976d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        jobject o = env->NewObject(JniConstants::structIfaddrs, ctor, name, flags, addr, netmask,
12986d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong                                   broad, hwaddr);
12996d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong        env->SetObjectArrayElement(result, index, o);
13006d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    }
13016d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
13026d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    return result;
13036d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong}
13046d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
1305a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) {
1306a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    char buf[IF_NAMESIZE];
1307a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    char* name = if_indextoname(index, buf);
1308a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed.
1309a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    // There's no useful information in errno, so we don't bother throwing. Callers can null-check.
1310a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    return env->NewStringUTF(name);
1311a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
1312a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
13136d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kongstatic jint Posix_if_nametoindex(JNIEnv* env, jobject, jstring name) {
13146d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    ScopedUtfChars cname(env, name);
1315507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong    if (cname.c_str() == NULL) {
1316507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong        return 0;
1317507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong    }
1318507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong
13196d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    // There's no useful information in errno, so we don't bother throwing. Callers can zero-check.
13206d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    return if_nametoindex(cname.c_str());
13216d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong}
13226d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong
1323fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) {
13241c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    ScopedUtfChars name(env, javaName);
13251c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (name.c_str() == NULL) {
13261c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
13271c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
13281c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    sockaddr_storage ss;
13291c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    memset(&ss, 0, sizeof(ss));
1330fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here.
1331fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr;
1332fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    if (inet_pton(family, name.c_str(), dst) != 1) {
13331c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
13341c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
1335fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    ss.ss_family = family;
1336482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, ss, NULL);
13371c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}
13381c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
133945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kongstatic jint Posix_ioctlFlags(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) {
134045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     struct ifreq req;
134145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     if (!fillIfreq(env, javaInterfaceName, req)) {
134245348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong        return 0;
134345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     }
134445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     int fd = jniGetFDFromFileDescriptor(env, javaFd);
134545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFFLAGS, &req)));
134645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     return req.ifr_flags;
134745348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong}
134845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong
1349a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) {
1350a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    struct ifreq req;
1351a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (!fillIfreq(env, javaInterfaceName, req)) {
1352a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return NULL;
1353a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
1354a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1355a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req)));
1356a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (rc == -1) {
1357a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return NULL;
1358a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
1359482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL);
1360a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
1361a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
13628b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) {
13638b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    // This is complicated because ioctls may return their result by updating their argument
13648b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    // or via their return value, so we need to support both.
1365461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
13668b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I");
13678b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    jint arg = env->GetIntField(javaArg, valueFid);
13688b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg)));
13698b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (!env->ExceptionCheck()) {
13708b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        env->SetIntField(javaArg, valueFid, arg);
13718b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
13728b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    return rc;
1373461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes}
1374461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes
137545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kongstatic jint Posix_ioctlMTU(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) {
137645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     struct ifreq req;
137745348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     if (!fillIfreq(env, javaInterfaceName, req)) {
137845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong        return 0;
137945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     }
138045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     int fd = jniGetFDFromFileDescriptor(env, javaFd);
138145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFMTU, &req)));
138245348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong     return req.ifr_mtu;
138345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong}
138445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong
13859a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) {
13869a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1387bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    return TEMP_FAILURE_RETRY(isatty(fd)) == 1;
13889a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes}
13899a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes
1390a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) {
1391a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes    throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig)));
1392a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes}
1393a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes
139444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) {
139544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    ScopedUtfChars path(env, javaPath);
139644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    if (path.c_str() == NULL) {
139744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes        return;
139844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    }
139944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid)));
140044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
140144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
140204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughesstatic void Posix_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) {
140304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    ScopedUtfChars oldPath(env, javaOldPath);
140404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    if (oldPath.c_str() == NULL) {
140504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes        return;
140604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    }
140704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    ScopedUtfChars newPath(env, javaNewPath);
140804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    if (newPath.c_str() == NULL) {
140904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes        return;
141004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    }
141104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str())));
141204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes}
141304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes
1414e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) {
1415e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1416e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog)));
1417e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes}
1418e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes
141955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kongstatic jobjectArray Posix_listxattr(JNIEnv* env, jobject, jstring javaPath) {
142055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    ScopedUtfChars path(env, javaPath);
142155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    if (path.c_str() == NULL) {
142255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        return NULL;
142355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    }
142455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong
142555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    while (true) {
142655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        // Get the current size of the named extended attribute.
142755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        ssize_t valueLength;
142855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        if ((valueLength = listxattr(path.c_str(), NULL, 0)) < 0) {
142955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            throwErrnoException(env, "listxattr");
143055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            return NULL;
143155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        }
143255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong
143355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        // Create the actual byte array.
143455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        std::string buf(valueLength, '\0');
143555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        if ((valueLength = listxattr(path.c_str(), &buf[0], valueLength)) < 0) {
143655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            if (errno == ERANGE) {
143755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong                // The attribute value has changed since last listxattr call and buf no longer fits,
143855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong                // try again.
143955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong                continue;
144055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            }
144155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            throwErrnoException(env, "listxattr");
144255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong            return NULL;
144355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        }
144455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong
144555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        // Split the output by '\0'.
144655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        buf.resize(valueLength > 0 ? valueLength - 1 : 0); // Remove the trailing NULL character.
144755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        std::string delim("\0", 1);
144855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        auto xattrs = android::base::Split(buf, delim);
144955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong
145055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong        return toStringArray(env, xattrs);
145155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    }
145255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong}
145355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong
1454dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) {
1455dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
14567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence)));
1457dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes}
1458dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes
145947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) {
146047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return doStat(env, javaPath, true);
146147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
146247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
14630f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) {
14640f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    ScopedByteArrayRW vector(env, javaVector);
14650f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    if (vector.get() == NULL) {
14660f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes        return;
14670f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    }
14680f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
14690f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get());
14700f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec)));
14710f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes}
14720f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes
1473c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) {
1474c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    ScopedUtfChars path(env, javaPath);
1475c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    if (path.c_str() == NULL) {
1476c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes        return;
1477c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    }
1478c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode)));
1479c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes}
1480c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes
1481f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerstatic void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) {
1482f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    ScopedUtfChars path(env, javaPath);
1483f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    if (path.c_str() == NULL) {
1484f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        return;
1485f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    }
1486f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode)));
1487f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller}
1488f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller
14897e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) {
14907e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
14917e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount)));
14927e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes}
14937e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes
14947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) {
14957e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
14967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
149713a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong    void* ptr = mmap64(suggestedPtr, byteCount, prot, flags, fd, offset);
14987e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    if (ptr == MAP_FAILED) {
14997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "mmap");
15007e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    }
15017e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr));
15027e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
15037e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
15047e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) {
15057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
15067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags)));
15077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
15087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
15097e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) {
15107e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
15117e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount)));
15127e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes}
15137e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes
15147e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) {
15157e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
15167e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount)));
15177e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
15187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
15190ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) {
15200ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    ScopedUtfChars path(env, javaPath);
15210ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    if (path.c_str() == NULL) {
15220ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes        return NULL;
15230ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    }
15240ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode)));
15250ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL;
15260ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes}
15270ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes
15285e92aa60a8a7103c71a4607ac05880e536f4195eElliott Hughesstatic jobjectArray Posix_pipe2(JNIEnv* env, jobject, jint flags __unused) {
152941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    int fds[2];
15300d8b5c3692c36837d22c4e7d9c4d7d95f6a10235Elliott Hughes    throwIfMinusOne(env, "pipe2", TEMP_FAILURE_RETRY(pipe2(&fds[0], flags)));
153141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL);
153241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    if (result == NULL) {
153341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        return NULL;
153441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    }
153541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    for (int i = 0; i < 2; ++i) {
153641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i]));
153741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        if (fd.get() == NULL) {
153841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes            return NULL;
153941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        }
154041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        env->SetObjectArrayElement(result, i, fd.get());
154141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        if (env->ExceptionCheck()) {
154241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes            return NULL;
154341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        }
154441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    }
154541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    return result;
154641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes}
154741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes
154870c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) {
154970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;");
155070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S");
155170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S");
155270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
15535d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[].
155470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    size_t arrayLength = env->GetArrayLength(javaStructs);
1555b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers    std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]);
155670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength);
155770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    size_t count = 0; // Some trailing array elements may be irrelevant. (See below.)
155870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    for (size_t i = 0; i < arrayLength; ++i) {
155970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i));
156070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        if (javaStruct.get() == NULL) {
156170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes            break; // We allow trailing nulls in the array for caller convenience.
156270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        }
156370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid));
156470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        if (javaFd.get() == NULL) {
156570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes            break; // We also allow callers to just clear the fd field (this is what Selector does).
156670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        }
156770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get());
156870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        fds[count].events = env->GetShortField(javaStruct.get(), eventsFid);
156970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ++count;
157070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
157170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
1572f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    std::vector<AsynchronousCloseMonitor*> monitors;
1573796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    for (size_t i = 0; i < count; ++i) {
1574f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd));
1575796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    }
1576fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1577fa542091e45db699a937c5ac0191194405107827Elliott Hughes    int rc;
1578fa542091e45db699a937c5ac0191194405107827Elliott Hughes    while (true) {
1579fa542091e45db699a937c5ac0191194405107827Elliott Hughes        timespec before;
1580fa542091e45db699a937c5ac0191194405107827Elliott Hughes        clock_gettime(CLOCK_MONOTONIC, &before);
1581fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1582fa542091e45db699a937c5ac0191194405107827Elliott Hughes        rc = poll(fds.get(), count, timeoutMs);
1583fa542091e45db699a937c5ac0191194405107827Elliott Hughes        if (rc >= 0 || errno != EINTR) {
1584fa542091e45db699a937c5ac0191194405107827Elliott Hughes            break;
1585fa542091e45db699a937c5ac0191194405107827Elliott Hughes        }
1586fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1587fa542091e45db699a937c5ac0191194405107827Elliott Hughes        // We got EINTR. Work out how much of the original timeout is still left.
1588fa542091e45db699a937c5ac0191194405107827Elliott Hughes        if (timeoutMs > 0) {
1589fa542091e45db699a937c5ac0191194405107827Elliott Hughes            timespec now;
1590fa542091e45db699a937c5ac0191194405107827Elliott Hughes            clock_gettime(CLOCK_MONOTONIC, &now);
1591fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1592fa542091e45db699a937c5ac0191194405107827Elliott Hughes            timespec diff;
1593fa542091e45db699a937c5ac0191194405107827Elliott Hughes            diff.tv_sec = now.tv_sec - before.tv_sec;
1594fa542091e45db699a937c5ac0191194405107827Elliott Hughes            diff.tv_nsec = now.tv_nsec - before.tv_nsec;
1595fa542091e45db699a937c5ac0191194405107827Elliott Hughes            if (diff.tv_nsec < 0) {
1596fa542091e45db699a937c5ac0191194405107827Elliott Hughes                --diff.tv_sec;
1597fa542091e45db699a937c5ac0191194405107827Elliott Hughes                diff.tv_nsec += 1000000000;
1598fa542091e45db699a937c5ac0191194405107827Elliott Hughes            }
1599fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1600fa542091e45db699a937c5ac0191194405107827Elliott Hughes            jint diffMs = diff.tv_sec * 1000 + diff.tv_nsec / 1000000;
1601fa542091e45db699a937c5ac0191194405107827Elliott Hughes            if (diffMs >= timeoutMs) {
1602fa542091e45db699a937c5ac0191194405107827Elliott Hughes                rc = 0; // We have less than 1ms left anyway, so just time out.
1603fa542091e45db699a937c5ac0191194405107827Elliott Hughes                break;
1604fa542091e45db699a937c5ac0191194405107827Elliott Hughes            }
1605fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1606fa542091e45db699a937c5ac0191194405107827Elliott Hughes            timeoutMs -= diffMs;
1607fa542091e45db699a937c5ac0191194405107827Elliott Hughes        }
1608fa542091e45db699a937c5ac0191194405107827Elliott Hughes    }
1609fa542091e45db699a937c5ac0191194405107827Elliott Hughes
1610796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    for (size_t i = 0; i < monitors.size(); ++i) {
1611796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes        delete monitors[i];
1612796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    }
161370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    if (rc == -1) {
161470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        throwErrnoException(env, "poll");
161570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        return -1;
161670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
161770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
16185d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    // Update the revents fields in the Java android.system.StructPollfd[].
161998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes    for (size_t i = 0; i < count; ++i) {
162070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i));
162198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes        if (javaStruct.get() == NULL) {
162298b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes            return -1;
162398b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes        }
162470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents);
162570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
162670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    return rc;
162770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes}
162870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
16293deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused,
16303deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers                                  jlong offset __unused, jlong length __unused) {
163111f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1632fa542091e45db699a937c5ac0191194405107827Elliott Hughes    while ((errno = posix_fallocate64(fd, offset, length)) == EINTR) {
1633fa542091e45db699a937c5ac0191194405107827Elliott Hughes    }
163411f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    if (errno != 0) {
163511f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes        throwErrnoException(env, "posix_fallocate");
163611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    }
163711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes}
163811f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes
16393deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jint Posix_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused,
16403deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers                        jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) {
1641fa542091e45db699a937c5ac0191194405107827Elliott Hughes    int result = TEMP_FAILURE_RETRY(prctl(static_cast<int>(option),
1642fa542091e45db699a937c5ac0191194405107827Elliott Hughes                                          static_cast<unsigned long>(arg2),
1643fa542091e45db699a937c5ac0191194405107827Elliott Hughes                                          static_cast<unsigned long>(arg3),
1644fa542091e45db699a937c5ac0191194405107827Elliott Hughes                                          static_cast<unsigned long>(arg4),
1645fa542091e45db699a937c5ac0191194405107827Elliott Hughes                                          static_cast<unsigned long>(arg5)));
16465215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich    return throwIfMinusOne(env, "prctl", result);
16475215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich}
16485215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich
1649e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) {
1650e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
1651e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    if (bytes.get() == NULL) {
1652e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes        return -1;
1653e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    }
1654f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset);
1655e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes}
1656e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes
1657e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) {
1658e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    ScopedBytesRO bytes(env, javaBytes);
1659e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    if (bytes.get() == NULL) {
1660e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes        return -1;
1661e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    }
1662f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset);
1663e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes}
1664e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes
16650568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) {
16660568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
166726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes    if (bytes.get() == NULL) {
166826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes        return -1;
166926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes    }
1670f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount);
167126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes}
167226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes
16730b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughesstatic jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) {
16740b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    ScopedUtfChars path(env, javaPath);
16750b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    if (path.c_str() == NULL) {
16760b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        return NULL;
16770b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    }
16780b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes
16790b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    std::string result;
16802cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes    if (!android::base::Readlink(path.c_str(), &result)) {
16810b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        throwErrnoException(env, "readlink");
16820b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        return NULL;
16830b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    }
16840b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    return env->NewStringUTF(result.c_str());
16850b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes}
16860b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes
16875d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamathstatic jstring Posix_realpath(JNIEnv* env, jobject, jstring javaPath) {
16885d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    ScopedUtfChars path(env, javaPath);
16895d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    if (path.c_str() == NULL) {
16905d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath        return NULL;
16915d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    }
16925d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath
16935d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    std::unique_ptr<char, c_deleter> real_path(realpath(path.c_str(), nullptr));
16945d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    if (real_path.get() == nullptr) {
16955d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath        throwErrnoException(env, "realpath");
16965d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath        return NULL;
16975d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    }
16985d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath
16995d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    return env->NewStringUTF(real_path.get());
17005d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath}
17015d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath
1702bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) {
17038dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers));
1704bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    if (!ioVec.init(buffers, offsets, byteCounts)) {
1705bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return -1;
1706bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
1707f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size());
1708bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}
1709bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
171023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) {
171123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
171223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    if (bytes.get() == NULL) {
171323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes        return -1;
171423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    }
171523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    sockaddr_storage ss;
171623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    socklen_t sl = sizeof(ss);
171723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    memset(&ss, 0, sizeof(ss));
171823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL;
171923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0;
17201124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength);
17216e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak    if (recvCount > 0) {
17226e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak        fillInetSocketAddress(env, javaInetSocketAddress, ss);
17230ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    }
172423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    return recvCount;
172523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes}
172623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes
1727c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) {
1728c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    ScopedUtfChars path(env, javaPath);
1729c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    if (path.c_str() == NULL) {
1730c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes        return;
1731c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    }
1732c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str())));
1733c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes}
1734c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes
173590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkeystatic void Posix_removexattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName) {
173690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars path(env, javaPath);
173790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (path.c_str() == NULL) {
173890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        return;
173990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
174090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars name(env, javaName);
174190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (name.c_str() == NULL) {
174290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        return;
174390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
174490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey
174590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    int res = removexattr(path.c_str(), name.c_str());
174690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (res < 0) {
174790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        throwErrnoException(env, "removexattr");
174890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
174990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey}
175090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey
1751a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) {
1752a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars oldPath(env, javaOldPath);
1753a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (oldPath.c_str() == NULL) {
1754a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1755a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1756a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars newPath(env, javaNewPath);
1757a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (newPath.c_str() == NULL) {
1758a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1759a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1760a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str())));
1761a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes}
1762a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes
17638b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) {
17648b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int outFd = jniGetFDFromFileDescriptor(env, javaOutFd);
17658b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int inFd = jniGetFDFromFileDescriptor(env, javaInFd);
17668b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J");
17678b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    off_t offset = 0;
17688b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    off_t* offsetPtr = NULL;
17698b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (javaOffset != NULL) {
17708b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        // TODO: fix bionic so we can have a 64-bit off_t!
17718b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        offset = env->GetLongField(javaOffset, valueFid);
17728b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        offsetPtr = &offset;
17738b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
17748b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount)));
17758b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (javaOffset != NULL) {
17768b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        env->SetLongField(javaOffset, valueFid, offset);
17778b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
17788b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    return result;
17798b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes}
17808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes
178190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) {
178290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    ScopedBytesRO bytes(env, javaBytes);
178390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    if (bytes.get() == NULL) {
178490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes        return -1;
178590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    }
1786b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti
1787b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti    return NET_IPV4_FALLBACK(env, ssize_t, sendto, javaFd, javaInetAddress, port,
1788b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti                             NULL_ADDR_OK, bytes.get() + byteOffset, byteCount, flags);
178990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes}
179090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes
1791a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colittistatic jint Posix_sendtoBytesSocketAddress(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaSocketAddress) {
1792f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) {
1793f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        // Use the InetAddress version so we get the benefit of NET_IPV4_FALLBACK.
1794f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        jobject javaInetAddress;
1795f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        jint port;
1796f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port);
1797f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti        return Posix_sendtoBytes(env, NULL, javaFd, javaBytes, byteOffset, byteCount, flags,
1798f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti                                 javaInetAddress, port);
1799f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti    }
1800f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti
1801a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    ScopedBytesRO bytes(env, javaBytes);
1802a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    if (bytes.get() == NULL) {
1803a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti        return -1;
1804a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    }
1805a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti
1806a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    sockaddr_storage ss;
1807a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    socklen_t sa_len;
1808a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) {
1809a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti        return -1;
1810a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    }
1811a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti
1812a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss);
1813a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    // We don't need the return value because we'll already have thrown.
1814a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, sa, sa_len);
1815a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti}
1816a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti
1817396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) {
1818396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid)));
1819396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1820396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1821895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) {
1822895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars name(env, javaName);
1823895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (name.c_str() == NULL) {
1824895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
1825895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
1826895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars value(env, javaValue);
1827895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (value.c_str() == NULL) {
1828895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
1829895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
1830895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite));
1831895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes}
1832895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes
1833396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) {
1834396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid)));
1835396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1836396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1837396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) {
1838396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid)));
1839396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1840396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
18418f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setpgid(JNIEnv* env, jobject, jint pid, int pgid) {
18428f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    throwIfMinusOne(env, "setpgid", TEMP_FAILURE_RETRY(setpgid(pid, pgid)));
18438f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes}
18448f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes
18458f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setregid(JNIEnv* env, jobject, jint rgid, int egid) {
18468f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    throwIfMinusOne(env, "setregid", TEMP_FAILURE_RETRY(setregid(rgid, egid)));
18478f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes}
18488f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes
18498f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughesstatic void Posix_setreuid(JNIEnv* env, jobject, jint ruid, int euid) {
18508f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    throwIfMinusOne(env, "setreuid", TEMP_FAILURE_RETRY(setreuid(ruid, euid)));
18518f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes}
18528f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes
18536c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) {
18546c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes    return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid()));
18556c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes}
18566c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes
1857c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1858c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1859c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    u_char byte = value;
1860c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte))));
1861c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1862c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1863a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) {
1864a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    struct ifreq req;
1865a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (!fillIfreq(env, javaInterfaceName, req)) {
1866b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes        return;
1867b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    }
1868b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1869b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))));
1870b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes}
1871b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes
1872454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1873454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1874454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1875454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes}
1876454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes
1877b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1878b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    ip_mreqn req;
1879b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    memset(&req, 0, sizeof(req));
1880b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    req.imr_ifindex = value;
1881b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1882b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))));
1883b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes}
1884b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes
1885438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) {
18868ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    struct group_req req;
18878ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    memset(&req, 0, sizeof(req));
1888438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1889438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I");
18908ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid);
1891438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    // Get the IPv4 or IPv6 multicast address to join or leave.
1892438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;");
1893e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes    ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid));
1894482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
1895482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) {
1896438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        return;
1897438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    }
1898438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1899438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
19008ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)));
1901438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    if (rc == -1 && errno == EINVAL) {
1902438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        // Maybe we're a 32-bit binary talking to a 64-bit kernel?
1903438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        // glibc doesn't automatically handle this.
1904df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // http://sourceware.org/bugzilla/show_bug.cgi?id=12080
19059634b569a92841f32268907c88c408f22cb00486Elliott Hughes        struct group_req64 {
1906438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            uint32_t gr_interface;
1907438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            uint32_t my_padding;
1908438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            sockaddr_storage gr_group;
1909438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        };
19108ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        group_req64 req64;
19118ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        req64.gr_interface = req.gr_interface;
19128ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group));
19138ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64)));
1914438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    }
1915438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    throwIfMinusOne(env, "setsockopt", rc);
1916438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes}
1917df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1918df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) {
1919df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    socklen_t sa_len;
1920df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    struct group_source_req req;
1921df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    memset(&req, 0, sizeof(req));
1922df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1923df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I");
1924df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid);
1925df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    // Get the IPv4 or IPv6 multicast address to join or leave.
1926df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;");
1927df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid));
1928df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) {
1929df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        return;
1930df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1931df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1932df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    // Get the IPv4 or IPv6 multicast address to add to the filter.
1933df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;");
1934df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid));
1935df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) {
1936df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        return;
1937df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1938df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1939df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1940df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)));
1941df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (rc == -1 && errno == EINVAL) {
1942df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // Maybe we're a 32-bit binary talking to a 64-bit kernel?
1943df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // glibc doesn't automatically handle this.
1944df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // http://sourceware.org/bugzilla/show_bug.cgi?id=12080
1945df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        struct group_source_req64 {
1946df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            uint32_t gsr_interface;
1947df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            uint32_t my_padding;
1948df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            sockaddr_storage gsr_group;
1949df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            sockaddr_storage gsr_source;
1950df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        };
1951df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        group_source_req64 req64;
1952df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        req64.gsr_interface = req.gsr_interface;
1953df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group));
1954df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source));
1955df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64)));
1956df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1957df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    throwIfMinusOne(env, "setsockopt", rc);
1958df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller}
1959438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1960c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) {
1961c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I");
1962c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I");
1963c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1964c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    struct linger value;
1965c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    value.l_onoff = env->GetIntField(javaLinger, lOnoffFid);
1966c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    value.l_linger = env->GetIntField(javaLinger, lLingerFid);
1967c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1968c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1969c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1970c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) {
1971c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J");
1972c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J");
1973c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1974c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    struct timeval value;
197539fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes    value.tv_sec = env->GetLongField(javaTimeval, tvSecFid);
197639fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes    value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid);
1977c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1978c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1979c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1980396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) {
1981396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid)));
1982396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1983396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
198490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkeystatic void Posix_setxattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName,
198590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        jbyteArray javaValue, jint flags) {
198690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars path(env, javaPath);
198790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (path.c_str() == NULL) {
198890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        return;
198990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
199090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedUtfChars name(env, javaName);
199190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (name.c_str() == NULL) {
199290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        return;
199390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
199490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    ScopedBytesRO value(env, javaValue);
199590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (value.get() == NULL) {
199690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        return;
199790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
199890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    size_t valueLength = env->GetArrayLength(javaValue);
199990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    int res = setxattr(path.c_str(), name.c_str(), value.get(), valueLength, flags);
200090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    if (res < 0) {
200190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey        throwErrnoException(env, "setxattr");
200290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    }
200390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey}
200490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey
200559e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) {
200659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
200759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how)));
200859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes}
200959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes
2010454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) {
201100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    if (domain == AF_PACKET) {
201200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti        protocol = htons(protocol);  // Packet sockets specify the protocol in host byte order.
201300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti    }
2014454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol)));
2015454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL;
2016454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes}
2017454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes
20183218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) {
20193218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    int fds[2];
20203218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds)));
20213218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    if (rc != -1) {
20223218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes        jniSetFileDescriptorOfFD(env, javaFd1, fds[0]);
20233218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes        jniSetFileDescriptorOfFD(env, javaFd2, fds[1]);
20243218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    }
20253218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes}
20263218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes
202747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) {
202847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return doStat(env, javaPath, false);
202947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
203047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
2031721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) {
203259fa7163774d6930a174bc038414a4b780581957Elliott Hughes    ScopedUtfChars path(env, javaPath);
203359fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (path.c_str() == NULL) {
203459fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
203559fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
2036721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    struct statvfs sb;
2037721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb));
203859fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (rc == -1) {
2039721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes        throwErrnoException(env, "statvfs");
204059fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
204159fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
2042721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return makeStructStatVfs(env, sb);
204359fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
204459fa7163774d6930a174bc038414a4b780581957Elliott Hughes
2045ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) {
204652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    char buffer[BUFSIZ];
2047ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    const char* message = jniStrError(errnum, buffer, sizeof(buffer));
2048ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return env->NewStringUTF(message);
2049ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
2050ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
2051763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughesstatic jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) {
2052763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes    return env->NewStringUTF(strsignal(signal));
2053763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes}
2054763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes
2055a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) {
2056a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars oldPath(env, javaOldPath);
2057a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (oldPath.c_str() == NULL) {
2058a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
2059a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
2060a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars newPath(env, javaNewPath);
2061a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (newPath.c_str() == NULL) {
2062a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
2063a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
2064a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str())));
2065a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes}
2066a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes
20676fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) {
20686fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward.
20696fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    errno = 0;
20706fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    long result = sysconf(name);
20716fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    if (result == -1L && errno == EINVAL) {
20727e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "sysconf");
20736fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    }
20746fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    return result;
20756fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes}
20766fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes
2077bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) {
2078bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    int fd = jniGetFDFromFileDescriptor(env, javaFd);
2079bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd)));
2080bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig}
2081bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig
2082039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) {
2083039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
2084039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes  throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration)));
2085039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes}
2086039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes
2087c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) {
208844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    return umask(mask);
208944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
209044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
20917341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) {
20927341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    struct utsname buf;
20939b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes    if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) {
20949b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes        return NULL; // Can't happen.
20957341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    }
20967341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    return makeStructUtsname(env, buf);
20977341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}
20987341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes
20995e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fullerstatic void Posix_unlink(JNIEnv* env, jobject, jstring javaPathname) {
21005e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller    ScopedUtfChars pathname(env, javaPathname);
21015e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller    if (pathname.c_str() == NULL) {
21025e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller        return;
21035e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller    }
21045e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller    throwIfMinusOne(env, "unlink", unlink(pathname.c_str()));
21055e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller}
21065e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller
2107895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) {
2108895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars name(env, javaName);
2109895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (name.c_str() == NULL) {
2110895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
2111895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
2112895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str()));
2113895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes}
2114895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes
21159e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) {
21169e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    int status;
21179e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options)));
21189e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    if (rc != -1) {
21199e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes        static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I");
21209e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes        env->SetIntField(javaStatus, valueFid, status);
21219e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    }
21229e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    return rc;
21239e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes}
21249e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes
21250568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) {
21260568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    ScopedBytesRO bytes(env, javaBytes);
212778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes    if (bytes.get() == NULL) {
212878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes        return -1;
212978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes    }
2130f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount);
213178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes}
213278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes
2133bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) {
21348dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers));
2135bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    if (!ioVec.init(buffers, offsets, byteCounts)) {
2136bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return -1;
2137bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
2138f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size());
2139bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}
2140bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
21418f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#define NATIVE_METHOD_OVERLOAD(className, functionName, signature, variant) \
21428f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    { #functionName, signature, reinterpret_cast<void*>(className ## _ ## functionName ## variant) }
21438f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline
2144ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = {
21450ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller    NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)Ljava/io/FileDescriptor;"),
2146ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"),
21473e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen    NATIVE_METHOD(Posix, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"),
2148da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes    NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"),
21498f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    NATIVE_METHOD_OVERLOAD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress),
2150b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"),
215144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"),
2152462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"),
2153996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"),
21548f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline    NATIVE_METHOD_OVERLOAD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress),
2155396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"),
2156396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"),
2157ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"),
2158798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"),
2159798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"),
216044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"),
216144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"),
21625d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"),
2163c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    NATIVE_METHOD(Posix, fcntlInt, "(Ljava/io/FileDescriptor;II)I"),
2164c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath    NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"),
216552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"),
21665d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"),
21675d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"),
216852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"),
2169f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"),
21704f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"),
2171396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getegid, "()I"),
2172396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, geteuid, "()I"),
2173396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getgid, "()I"),
2174ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"),
21754f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"),
2176482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"),
21778f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    NATIVE_METHOD(Posix, getpgid, "(I)I"),
2178396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getpid, "()I"),
2179396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getppid, "()I"),
21805d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"),
21815d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"),
21820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"),
21830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"),
21840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"),
21850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"),
21865d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"),
21875d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"),
21885d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"),
2189069525a39125c203b658c805685b6045a7d4dfebElliott Hughes    NATIVE_METHOD(Posix, gettid, "()I"),
2190396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getuid, "()I"),
219140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong    NATIVE_METHOD(Posix, getxattr, "(Ljava/lang/String;Ljava/lang/String;)[B"),
21926d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    NATIVE_METHOD(Posix, getifaddrs, "()[Landroid/system/StructIfaddrs;"),
2193a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"),
21946d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong    NATIVE_METHOD(Posix, if_nametoindex, "(Ljava/lang/String;)I"),
2195fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"),
219645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong    NATIVE_METHOD(Posix, ioctlFlags, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"),
2197a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"),
21985d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"),
219945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong    NATIVE_METHOD(Posix, ioctlMTU, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"),
22009a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes    NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"),
2201a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes    NATIVE_METHOD(Posix, kill, "(II)V"),
220244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"),
220304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes    NATIVE_METHOD(Posix, link, "(Ljava/lang/String;Ljava/lang/String;)V"),
2204e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"),
220555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong    NATIVE_METHOD(Posix, listxattr, "(Ljava/lang/String;)[Ljava/lang/String;"),
2206dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"),
22075d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"),
22080f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    NATIVE_METHOD(Posix, mincore, "(JJ[B)V"),
2209c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"),
2210f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"),
22117e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    NATIVE_METHOD(Posix, mlock, "(JJ)V"),
22127e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"),
22137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, msync, "(JJI)V"),
22147e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    NATIVE_METHOD(Posix, munlock, "(JJ)V"),
22157e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, munmap, "(JJ)V"),
22160ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"),
221775781e7ed9373d97f5959b5b20e7343b8f7e1417Elliott Hughes    NATIVE_METHOD(Posix, pipe2, "(I)[Ljava/io/FileDescriptor;"),
22185d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"),
221911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"),
22205215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich    NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"),
2221e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"),
2222e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"),
22230568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"),
22240b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"),
22255d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath    NATIVE_METHOD(Posix, realpath, "(Ljava/lang/String;)Ljava/lang/String;"),
2226bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"),
222723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"),
2228c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"),
222990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    NATIVE_METHOD(Posix, removexattr, "(Ljava/lang/String;Ljava/lang/String;)V"),
2230a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"),
22315d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"),
223290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"),
2233a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti    NATIVE_METHOD_OVERLOAD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/SocketAddress;)I", SocketAddress),
2234396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setegid, "(I)V"),
2235895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"),
2236396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, seteuid, "(I)V"),
2237396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setgid, "(I)V"),
22388f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    NATIVE_METHOD(Posix, setpgid, "(II)V"),
22398f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    NATIVE_METHOD(Posix, setregid, "(II)V"),
22408f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes    NATIVE_METHOD(Posix, setreuid, "(II)V"),
22416c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes    NATIVE_METHOD(Posix, setsid, "()I"),
2242c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"),
2243b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"),
2244454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"),
2245b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"),
22465d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"),
22475d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"),
22485d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"),
22495d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"),
2250396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setuid, "(I)V"),
225190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey    NATIVE_METHOD(Posix, setxattr, "(Ljava/lang/String;Ljava/lang/String;[BI)V"),
225259e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"),
2253454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"),
22543218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"),
22555d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"),
22565d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"),
2257ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"),
2258763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes    NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"),
2259a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"),
22606fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    NATIVE_METHOD(Posix, sysconf, "(I)J"),
2261bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"),
2262039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes    NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"),
2263c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich    NATIVE_METHOD(Posix, umaskImpl, "(I)I"),
22645d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"),
22655e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller    NATIVE_METHOD(Posix, unlink, "(Ljava/lang/String;)V"),
2266895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"),
22675d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"),
22680568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"),
2269bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"),
2270ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes};
22717cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) {
22727cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes    jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods));
2273ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}
2274