libcore_io_Linux.cpp revision 5215e4c0db7530519981f1e505e6db82401802f2
1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/*
2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project
3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes *
4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License");
5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License.
6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at
7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes *
8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes *      http://www.apache.org/licenses/LICENSE-2.0
9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes *
10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software
11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS,
12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and
14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License.
15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */
16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
17ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#define LOG_TAG "Posix"
18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
19f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#include "AsynchronousCloseMonitor.h"
2015c1945bb1810d061ea2d5b07a11e3ecc5ec8536Ruben Brunk#include "cutils/log.h"
21ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes#include "ExecStrings.h"
22ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JNIHelp.h"
23ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "JniConstants.h"
24ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "JniException.h"
250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include "NetworkUtilities.h"
266c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#include "Portability.h"
270b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes#include "readlink.h"
280568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes#include "ScopedBytes.h"
29e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes#include "ScopedLocalRef.h"
300f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes#include "ScopedPrimitiveArray.h"
31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include "ScopedUtfChars.h"
32ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include "toStringArray.h"
330b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes#include "UniquePtr.h"
34ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
351c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h>
36ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h>
370ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h>
38b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h>
394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h>
400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h>
4170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h>
42d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h>
43a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h>
44ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h>
45461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h>
467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h>
475215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h>
4859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h>
4947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h>
50069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h>
510a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h>
520ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h>
53bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h>
547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h>
559e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h>
56bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h>
570ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h>
58ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
59d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \
60d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        jstring NAME = env->NewStringUTF(EXP); \
61d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        if (NAME == NULL) return NULL;
62d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter {
641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    void operator()(addrinfo* p) const {
651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL.
661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            freeaddrinfo(p);
671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes};
701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
71996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/**
72f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike
73f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where
74f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or
75f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call
76f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried.
77996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes *
78f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is
79f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1:  a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other
80f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures.
81996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */
821124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \
831124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    return_type _rc = -1; \
84996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    do { \
85f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        bool _wasSignaled; \
86f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        int _syscallErrno; \
87996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes        { \
881124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes            int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \
89f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            AsynchronousCloseMonitor _monitor(_fd); \
901124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes            _rc = syscall_name(_fd, __VA_ARGS__); \
91f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            _syscallErrno = errno; \
92f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            _wasSignaled = _monitor.wasSignaled(); \
93996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes        } \
94f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        if (_wasSignaled) { \
95f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \
96f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            break; \
97f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        } \
98f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        if (_rc == -1 && _syscallErrno != EINTR) { \
99f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            /* TODO: with a format string we could show the arguments too, like strace(1). */ \
100f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            throwErrnoException(jni_env, # syscall_name); \
101f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            break; \
102f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        } \
103f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \
104f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    _rc; })
105f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller
106f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/**
107f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this
108f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal
109f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the
110f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried.
111f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller *
112f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is
113f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled
114f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures.
115f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */
116f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \
117f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return_type _rc = -1; \
118f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \
119f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    if (_fd == -1) { \
120f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        jniThrowException(jni_env, "java/io/IOException", "File descriptor closed"); \
121f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    } else { \
122f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        do { \
123f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            bool _wasSignaled; \
124f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            int _syscallErrno; \
125f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            { \
126f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \
127f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                AsynchronousCloseMonitor _monitor(_fd); \
128f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                _rc = syscall_name(_fd, __VA_ARGS__); \
129f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                _syscallErrno = errno; \
130f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                _wasSignaled = _monitor.wasSignaled(); \
131f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            } \
132f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            if (_wasSignaled) { \
133f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller                jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \
134996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes                break; \
135f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            } \
136f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller            if (_rc == -1 && _syscallErrno != EINTR) { \
1371124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes                /* TODO: with a format string we could show the arguments too, like strace(1). */ \
1381124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes                throwErrnoException(jni_env, # syscall_name); \
139996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes                break; \
140996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes            } \
141f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \
142f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    } \
143996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    _rc; })
144996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes
1454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2,
1464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        const char* functionName, int error) {
147ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    jthrowable cause = NULL;
148ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (env->ExceptionCheck()) {
149ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        cause = env->ExceptionOccurred();
150ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        env->ExceptionClear();
151ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
152ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
1534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName));
1544f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    if (detailMessage.get() == NULL) {
155f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        // Not really much we can do here. We're probably dead in the water,
156f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        // but let's try to stumble on...
157f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes        env->ExceptionClear();
158f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    }
159f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes
160ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    jobject exception;
161ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (cause != NULL) {
1624f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause);
163ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    } else {
1644f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error);
165ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
166ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    env->Throw(reinterpret_cast<jthrowable>(exception));
167dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes}
168dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes
1694f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) {
1704f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    int error = errno;
1714f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass,
1724f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes            "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V");
1734f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass,
1744f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes            "<init>", "(Ljava/lang/String;I)V");
1754f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error);
1764f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
1774f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
1784f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) {
179c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception.
180c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>",
181c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes                                            "(Ljava/lang/String;ILjava/lang/Throwable;)V");
182c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>",
183c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes                                            "(Ljava/lang/String;I)V");
184c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes  if (errno != 0) {
18575cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to
18675cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES
18775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a
18875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM.
18975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes        // http://code.google.com/p/android/issues/detail?id=15722
1904f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        throwErrnoException(env, functionName);
1914f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        // Deliberately fall through to throw another exception...
1924f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
1934f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error);
1944f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
1954f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
196dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t>
1977e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) {
198dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == rc_t(-1)) {
1997e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, name);
200dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    }
201dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    return rc;
20247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
20347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
2048dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT>
205bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec {
206bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic:
207bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) {
208bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
209bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
210bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) {
211bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        // We can't delete our local references until after the I/O, so make sure we have room.
212bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) {
213bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
214bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
215bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        ScopedIntArrayRO offsets(mEnv, javaOffsets);
216bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (offsets.get() == NULL) {
217bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
218bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
219bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        ScopedIntArrayRO byteCounts(mEnv, javaByteCounts);
220bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        if (byteCounts.get() == NULL) {
221bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            return false;
222bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
223bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too.
224d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX).
225bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        for (size_t i = 0; i < mBufferCount; ++i) {
226e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes            jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref.
2278dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            mScopedBuffers.push_back(new ScopedT(mEnv, buffer));
2288dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get());
229bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            if (ptr == NULL) {
230bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes                return false;
231bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            }
232bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            struct iovec iov;
233bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]);
234bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            iov.iov_len = byteCounts[i];
235bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes            mIoVec.push_back(iov);
236bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
237bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return true;
238bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
239bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
240bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    ~IoVec() {
2418dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes        for (size_t i = 0; i < mScopedBuffers.size(); ++i) {
2428dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes            delete mScopedBuffers[i];
243bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        }
244bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        mEnv->PopLocalFrame(NULL);
245bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
246bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
247bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    iovec* get() {
248bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return &mIoVec[0];
249bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
250bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
251bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    size_t size() {
252bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return mBufferCount;
253bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
254bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
255bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate:
256bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    JNIEnv* mEnv;
257bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    size_t mBufferCount;
258bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    std::vector<iovec> mIoVec;
2598dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    std::vector<ScopedT*> mScopedBuffers;
260bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes};
261bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
262482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss) {
26323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    jint port;
26423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    jobject inetAddress = sockaddrToInetAddress(env, ss, &port);
2650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (inetAddress == NULL) {
2660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
2670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
2680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>",
2690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes            "(Ljava/net/InetAddress;I)V");
2700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port);
2710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
2720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
273d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) {
274d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_name, pw.pw_name);
275d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_dir, pw.pw_dir);
276d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(pw_shell, pw.pw_shell);
277d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>",
278d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V");
279d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return env->NewObject(JniConstants::structPasswdClass, ctor,
280d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell);
281d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
282d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
28347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject makeStructStat(JNIEnv* env, const struct stat& sb) {
28447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>",
28547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes            "(JJIJIIJJJJJJJ)V");
28647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return env->NewObject(JniConstants::structStatClass, ctor,
28759fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino),
28859fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink),
28959fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid),
29059fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size),
29159fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime),
29259fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize),
29359fa7163774d6930a174bc038414a4b780581957Elliott Hughes            static_cast<jlong>(sb.st_blocks));
29459fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
29559fa7163774d6930a174bc038414a4b780581957Elliott Hughes
296721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) {
2976c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__)
2986c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes    // Mac OS has no f_namelen field in struct statfs.
2996c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes    jlong max_name_length = 255; // __DARWIN_MAXNAMLEN
3006c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else
301721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    jlong max_name_length = static_cast<jlong>(sb.f_namemax);
3026c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif
3036c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes
304721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>",
305721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes            "(JJJJJJJJJJJ)V");
306721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return env->NewObject(JniConstants::structStatVfsClass, ctor,
307721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bsize),
308721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_frsize),
309721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_blocks),
310721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bfree),
311721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_bavail),
312721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_files),
313721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_ffree),
314721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_favail),
315721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_fsid),
316721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          static_cast<jlong>(sb.f_flag),
317721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes                          max_name_length);
31847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
31947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
3200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) {
3210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V");
3220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger);
3230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
3240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
3250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) {
3260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V");
3270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return env->NewObject(JniConstants::structTimevalClass, ctor,
3280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes            static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec));
3290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
3300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
331482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u) {
332482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V");
333482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid);
334482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
335482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
3367341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) {
337d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(sysname, buf.sysname);
338d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(nodename, buf.nodename);
339d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(release, buf.release);
340d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(version, buf.version);
341d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    TO_JAVA_STRING(machine, buf.machine);
3427341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>",
3437341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes            "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
3447341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    return env->NewObject(JniConstants::structUtsnameClass, ctor,
3457341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes            sysname, nodename, release, version, machine);
3467341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes};
3477341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes
348a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) {
349a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    ScopedUtfChars interfaceName(env, javaInterfaceName);
350a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (interfaceName.c_str() == NULL) {
351a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return false;
352a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
353a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    memset(&req, 0, sizeof(req));
354a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name));
355a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    req.ifr_name[sizeof(req.ifr_name) - 1] = '\0';
356a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    return true;
357a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
358a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
359482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage& ss) {
360553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    if (rc == -1 || javaInetSocketAddress == NULL) {
361553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return true;
362553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
363553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    // Fill out the passed-in InetSocketAddress with the sender's IP address and port number.
364553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    jint port;
365553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    jobject sender = sockaddrToInetAddress(env, ss, &port);
366553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    if (sender == NULL) {
367553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return false;
368553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
369553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;");
370553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I");
371553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    env->SetObjectField(javaInetSocketAddress, addressFid, sender);
372553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    env->SetIntField(javaInetSocketAddress, portFid, port);
373553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    return true;
374553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes}
375553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes
37647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) {
37747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    ScopedUtfChars path(env, javaPath);
37847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    if (path.c_str() == NULL) {
37947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
38047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
38147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    struct stat sb;
38247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb))
38347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes                     : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb));
384dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
3857e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, isLstat ? "lstat" : "stat");
38647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
38747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
38847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return makeStructStat(env, sb);
389ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
390ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
391482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) {
392482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
393482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  sockaddr_storage ss;
394482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  sockaddr* sa = reinterpret_cast<sockaddr*>(&ss);
395482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  socklen_t byteCount = sizeof(ss);
396482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  memset(&ss, 0, byteCount);
397482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount))
398482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes      : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount));
399482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  if (rc == -1) {
400482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    throwErrnoException(env, is_sockname ? "getsockname" : "getpeername");
401482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return NULL;
402482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  }
403482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return makeSocketAddress(env, ss);
404482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
405482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
406d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd {
407d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic:
408d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) {
409d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX);
410d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        mBuffer.reset(new char[mBufferSize]);
411d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
412d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
413d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject getpwnam(const char* name) {
414d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult));
415d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
416d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
417d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject getpwuid(uid_t uid) {
418d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult));
419d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
420d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
421d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd* get() {
422d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return mResult;
423d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
424d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
425d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate:
426d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    jobject process(const char* syscall, int error) {
427d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        if (mResult == NULL) {
428d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            errno = error;
429d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            throwErrnoException(mEnv, syscall);
430d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes            return NULL;
431d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        }
432d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return makeStructPasswd(mEnv, *mResult);
433d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
434d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
435d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    JNIEnv* mEnv;
436d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    UniquePtr<char[]> mBuffer;
437d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    size_t mBufferSize;
438d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd mPwd;
439d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    struct passwd* mResult;
440d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes};
441d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
442553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughesstatic jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) {
443553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    sockaddr_storage ss;
444553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    socklen_t sl = sizeof(ss);
445553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    memset(&ss, 0, sizeof(ss));
446553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL;
447553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0;
4481124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength);
449482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, ss)) {
450553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        close(clientFd);
451553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes        return NULL;
452553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    }
453553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL;
454553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes}
455553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes
456ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) {
457ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    ScopedUtfChars path(env, javaPath);
458ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    if (path.c_str() == NULL) {
459ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes        return JNI_FALSE;
460ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    }
46147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode));
462dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
4637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "access");
464dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    }
465ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return (rc == 0);
466ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
467ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
468da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughesstatic void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) {
469da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes    sockaddr_storage ss;
470482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
471482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) {
472da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes        return;
473da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes    }
474da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes    const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss);
4751124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    // We don't need the return value because we'll already have thrown.
476482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len);
477da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes}
478da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes
479b7190190e0ef8de883c952efb319ce7748831faaElliott Hughesstatic void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) {
480b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    ScopedUtfChars path(env, javaPath);
481b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    if (path.c_str() == NULL) {
482b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes        return;
483b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    }
484b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode)));
485b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes}
486b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes
48744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) {
48844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    ScopedUtfChars path(env, javaPath);
48944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    if (path.c_str() == NULL) {
49044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes        return;
49144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    }
49244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid)));
49344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
49444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
495462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughesstatic void Posix_close(JNIEnv* env, jobject, jobject javaFd) {
496462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Get the FileDescriptor's 'fd' field and clear it.
497462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // We need to do this before we can throw an IOException (http://b/3222087).
498462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
499462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    jniSetFileDescriptorOfFD(env, javaFd, -1);
500462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes
501462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Even if close(2) fails with EINTR, the fd will have been closed.
502462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd.
503462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html
504462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    throwIfMinusOne(env, "close", close(fd));
505462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes}
506462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes
507996bf79565ac88402920bd826d6f85952c83be20Elliott Hughesstatic void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) {
508996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    sockaddr_storage ss;
509482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
510482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddr(env, javaAddress, port, ss, sa_len)) {
511996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes        return;
512996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    }
513996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss);
5141124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    // We don't need the return value because we'll already have thrown.
515482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len);
516996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes}
517996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes
518396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) {
519396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd);
520396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd)));
521396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL;
522396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
523396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
524396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) {
525396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd);
526396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd)));
527396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL;
528396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
529396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
530ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jobjectArray Posix_environ(JNIEnv* env, jobject) {
531ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    extern char** environ; // Standard, but not in any header file.
532ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return toStringArray(env, environ);
533ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
534ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
535798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) {
536798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    ScopedUtfChars path(env, javaFilename);
537798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    if (path.c_str() == NULL) {
538798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich        return;
539798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    }
540798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
541ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings argv(env, javaArgv);
542ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings envp(env, javaEnvp);
543ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    execve(path.c_str(), argv.get(), envp.get());
544798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
545798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    throwErrnoException(env, "execve");
546798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich}
547798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
548798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevichstatic void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) {
549798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    ScopedUtfChars path(env, javaFilename);
550798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    if (path.c_str() == NULL) {
551798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich        return;
552798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    }
553798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
554ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    ExecStrings argv(env, javaArgv);
555ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes    execv(path.c_str(), argv.get());
556798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
557798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    throwErrnoException(env, "execv");
558798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich}
559798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich
56044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) {
56144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
56244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode)));
56344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
56444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
56544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) {
56644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
56744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid)));
56844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
56944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
570fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) {
571fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
572fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd)));
573fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes}
574fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
575fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) {
576fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
577fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg)));
578fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes}
579fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
580fc549a0b0388987b26dea524894d75a63d14783bElliott Hughesstatic jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) {
581fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S");
582fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S");
583fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J");
584fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J");
585fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I");
586fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
587fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    struct flock64 lock;
588fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    memset(&lock, 0, sizeof(lock));
589fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_type = env->GetShortField(javaFlock, typeFid);
590fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_whence = env->GetShortField(javaFlock, whenceFid);
591fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_start = env->GetLongField(javaFlock, startFid);
592fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_len = env->GetLongField(javaFlock, lenFid);
593fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    lock.l_pid = env->GetIntField(javaFlock, pidFid);
594fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
595fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
596fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock)));
597fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    if (rc != -1) {
598fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetShortField(javaFlock, typeFid, lock.l_type);
599fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetShortField(javaFlock, whenceFid, lock.l_whence);
600fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetLongField(javaFlock, startFid, lock.l_start);
601fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetLongField(javaFlock, lenFid, lock.l_len);
602fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes        env->SetIntField(javaFlock, pidFid, lock.l_pid);
603fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    }
604fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    return rc;
605fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes}
606fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes
60752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) {
60852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
6097e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd)));
61052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes}
61152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes
61247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) {
61347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
61447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    struct stat sb;
61547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb));
616dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    if (rc == -1) {
6177e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "fstat");
61847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes        return NULL;
61947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    }
62047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return makeStructStat(env, sb);
62147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
62247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
623721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) {
62459fa7163774d6930a174bc038414a4b780581957Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
625721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    struct statvfs sb;
626721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb));
62759fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (rc == -1) {
628721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes        throwErrnoException(env, "fstatvfs");
62959fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
63059fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
631721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return makeStructStatVfs(env, sb);
63259fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
63359fa7163774d6930a174bc038414a4b780581957Elliott Hughes
63452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesstatic void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) {
63552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
6367e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd)));
637f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes}
638f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes
639f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughesstatic void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) {
640f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
6417e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length)));
64252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes}
64352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes
6444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) {
6454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    return env->NewStringUTF(gai_strerror(error));
6464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
6474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
6481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstatic jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) {
6491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    ScopedUtfChars node(env, javaNode);
6501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (node.c_str() == NULL) {
6511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
6521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
6531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I");
6551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I");
6561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I");
6571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I");
6581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    addrinfo hints;
6601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    memset(&hints, 0, sizeof(hints));
6611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_flags = env->GetIntField(javaHints, flagsFid);
6621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_family = env->GetIntField(javaHints, familyFid);
6631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_socktype = env->GetIntField(javaHints, socktypeFid);
6641c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    hints.ai_protocol = env->GetIntField(javaHints, protocolFid);
6651c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6661c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    addrinfo* addressList = NULL;
66775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes    errno = 0;
6681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList);
6691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList);
6701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (rc != 0) {
6711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        throwGaiException(env, "getaddrinfo", rc);
6721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
6731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
6741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Count results so we know how to size the output array.
6761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    int addressCount = 0;
6771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) {
6781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) {
6791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            ++addressCount;
6801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        } else {
681679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block            ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family);
6821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
6831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
6841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (addressCount == 0) {
6851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
6861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
6871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Prepare output array.
6891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL);
6901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (result == NULL) {
6911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
6921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
6931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
6941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    // Examine returned addresses one by one, save them in the output array.
6951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    int index = 0;
6961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) {
6971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) {
6981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            // Unknown address family. Skip this address.
699679cf68b607e9b4a3beb8bcdee06868ae583386fSteve Block            ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family);
7001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            continue;
7011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
7021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
7031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        // Convert each IP address into a Java byte array.
704482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes        sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr);
70523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes        ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL));
7061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        if (inetAddress.get() == NULL) {
7071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes            return NULL;
7081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        }
7091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        env->SetObjectArrayElement(result, index, inetAddress.get());
7101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        ++index;
7111c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
7121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    return result;
7131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}
7141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
715396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getegid(JNIEnv*, jobject) {
716396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return getegid();
717396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
718396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
719396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_geteuid(JNIEnv*, jobject) {
720396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return geteuid();
721396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
722396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
723396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getgid(JNIEnv*, jobject) {
724396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return getgid();
725396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
726396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
727ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) {
728ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    ScopedUtfChars name(env, javaName);
729ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    if (name.c_str() == NULL) {
730ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes        return NULL;
731ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    }
732ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    return env->NewStringUTF(getenv(name.c_str()));
733ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}
734ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes
7354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) {
7364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    sockaddr_storage ss;
737482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
738482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) {
7394f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        return NULL;
7404f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
7414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN.
74275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes    errno = 0;
743482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags);
7444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    if (rc != 0) {
7454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        throwGaiException(env, "getnameinfo", rc);
7464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes        return NULL;
7474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    }
7484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    return env->NewStringUTF(buf);
7494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes}
7504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes
751482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) {
752482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return doGetSockName(env, javaFd, false);
753482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
754482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
755396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getpid(JNIEnv*, jobject) {
756396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return getpid();
757396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
758396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
759396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getppid(JNIEnv*, jobject) {
760396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return getppid();
761396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
762396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
763d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) {
764d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    ScopedUtfChars name(env, javaName);
765d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    if (name.c_str() == NULL) {
766d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes        return NULL;
767d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    }
768d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return Passwd(env).getpwnam(name.c_str());
769d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
770d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
771d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) {
772d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes    return Passwd(env).getpwuid(uid);
773d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}
774d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes
7750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) {
776482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return doGetSockName(env, javaFd, true);
7770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
7780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
7790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
7800a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
7810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    u_char result = 0;
7820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(result);
7830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size)));
7840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return result;
7850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
7860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
7870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
7880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
7890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    sockaddr_storage ss;
7900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&ss, 0, sizeof(ss));
7910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF.
7920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss);
7930a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(sa->sin_addr);
7940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size));
7950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
7960a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
7970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
7980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
799482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, ss, NULL);
8000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
8010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
8020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
8030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
8040a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    jint result = 0;
8050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(result);
8060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size)));
8070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return result;
8080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
8090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
8100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
8110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
8120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    struct linger l;
8130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(l);
8140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&l, 0, size);
8150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size));
8160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
8170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
8180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
8190a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
8200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return makeStructLinger(env, l);
8210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
8220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
8230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
8240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
8250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    struct timeval tv;
8260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    socklen_t size = sizeof(tv);
8270a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    memset(&tv, 0, size);
8280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size));
8290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    if (rc == -1) {
8300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        throwErrnoException(env, "getsockopt");
8310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes        return NULL;
8320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    }
8330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    return makeStructTimeval(env, tv);
8340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes}
8350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes
836482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) {
837482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
838482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  struct ucred u;
839482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  socklen_t size = sizeof(u);
840482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  memset(&u, 0, size);
841482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size));
842482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  if (rc == -1) {
843482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    throwErrnoException(env, "getsockopt");
844482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return NULL;
845482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  }
846482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes  return makeStructUcred(env, u);
847482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes}
848482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes
849069525a39125c203b658c805685b6045a7d4dfebElliott Hughesstatic jint Posix_gettid(JNIEnv*, jobject) {
850069525a39125c203b658c805685b6045a7d4dfebElliott Hughes  // Neither bionic nor glibc exposes gettid(2).
851069525a39125c203b658c805685b6045a7d4dfebElliott Hughes  return syscall(__NR_gettid);
852069525a39125c203b658c805685b6045a7d4dfebElliott Hughes}
853069525a39125c203b658c805685b6045a7d4dfebElliott Hughes
854396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic jint Posix_getuid(JNIEnv*, jobject) {
855396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    return getuid();
856396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
857396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
858a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) {
859a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    char buf[IF_NAMESIZE];
860a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    char* name = if_indextoname(index, buf);
861a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed.
862a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    // There's no useful information in errno, so we don't bother throwing. Callers can null-check.
863a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    return env->NewStringUTF(name);
864a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
865a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
866fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughesstatic jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) {
8671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    ScopedUtfChars name(env, javaName);
8681c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    if (name.c_str() == NULL) {
8691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
8701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
8711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    sockaddr_storage ss;
8721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    memset(&ss, 0, sizeof(ss));
873fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here.
874fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr;
875fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    if (inet_pton(family, name.c_str(), dst) != 1) {
8761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes        return NULL;
8771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes    }
878fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    ss.ss_family = family;
879482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, ss, NULL);
8801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}
8811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes
882a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) {
883a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    struct ifreq req;
884a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (!fillIfreq(env, javaInterfaceName, req)) {
885a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return NULL;
886a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
887a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
888a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req)));
889a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (rc == -1) {
890a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes        return NULL;
891a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    }
892482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL);
893a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes}
894a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes
8958b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) {
8968b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    // This is complicated because ioctls may return their result by updating their argument
8978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    // or via their return value, so we need to support both.
898461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
8998b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I");
9008b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    jint arg = env->GetIntField(javaArg, valueFid);
9018b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg)));
9028b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (!env->ExceptionCheck()) {
9038b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        env->SetIntField(javaArg, valueFid, arg);
9048b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
9058b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    return rc;
906461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes}
907461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes
9089a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughesstatic jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) {
9099a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
910bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    return TEMP_FAILURE_RETRY(isatty(fd)) == 1;
9119a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes}
9129a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes
913a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughesstatic void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) {
914a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes    throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig)));
915a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes}
916a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes
91744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughesstatic void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) {
91844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    ScopedUtfChars path(env, javaPath);
91944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    if (path.c_str() == NULL) {
92044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes        return;
92144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    }
92244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid)));
92344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
92444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
925e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughesstatic void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) {
926e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
927e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog)));
928e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes}
929e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes
930dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughesstatic jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) {
931dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
9327e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence)));
933dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes}
934dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes
93547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) {
93647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return doStat(env, javaPath, true);
93747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
93847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
9390f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughesstatic void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) {
9400f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    ScopedByteArrayRW vector(env, javaVector);
9410f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    if (vector.get() == NULL) {
9420f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes        return;
9430f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    }
9440f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9450f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get());
9460f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec)));
9470f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes}
9480f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes
949c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) {
950c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    ScopedUtfChars path(env, javaPath);
951c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    if (path.c_str() == NULL) {
952c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes        return;
953c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    }
954c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode)));
955c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes}
956c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes
957f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerstatic void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) {
958f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    ScopedUtfChars path(env, javaPath);
959f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    if (path.c_str() == NULL) {
960f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        return;
961f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    }
962f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode)));
963f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller}
964f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller
9657e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) {
9667e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9677e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount)));
9687e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes}
9697e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes
9707e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) {
9717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
9727e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9737e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset);
9747e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    if (ptr == MAP_FAILED) {
9757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "mmap");
9767e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    }
9777e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr));
9787e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
9797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
9807e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) {
9817e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9827e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags)));
9837e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
9847e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
9857e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughesstatic void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) {
9867e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9877e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount)));
9887e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes}
9897e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes
9907e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) {
9917e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address));
9927e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount)));
9937e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes}
9947e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes
9950ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughesstatic jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) {
9960ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    ScopedUtfChars path(env, javaPath);
9970ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    if (path.c_str() == NULL) {
9980ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes        return NULL;
9990ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    }
10000ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode)));
10010ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL;
10020ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes}
10030ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes
100441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughesstatic jobjectArray Posix_pipe(JNIEnv* env, jobject) {
100541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    int fds[2];
100641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0])));
100741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL);
100841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    if (result == NULL) {
100941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        return NULL;
101041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    }
101141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    for (int i = 0; i < 2; ++i) {
101241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i]));
101341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        if (fd.get() == NULL) {
101441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes            return NULL;
101541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        }
101641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        env->SetObjectArrayElement(result, i, fd.get());
101741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        if (env->ExceptionCheck()) {
101841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes            return NULL;
101941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes        }
102041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    }
102141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    return result;
102241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes}
102341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes
102470c820401677ca251ad09ac64cc23c760764e75dElliott Hughesstatic jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) {
102570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;");
102670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S");
102770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S");
102870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
10295d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[].
103070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    size_t arrayLength = env->GetArrayLength(javaStructs);
103170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]);
103270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength);
103370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    size_t count = 0; // Some trailing array elements may be irrelevant. (See below.)
103470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    for (size_t i = 0; i < arrayLength; ++i) {
103570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i));
103670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        if (javaStruct.get() == NULL) {
103770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes            break; // We allow trailing nulls in the array for caller convenience.
103870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        }
103970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid));
104070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        if (javaFd.get() == NULL) {
104170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes            break; // We also allow callers to just clear the fd field (this is what Selector does).
104270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        }
104370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get());
104470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        fds[count].events = env->GetShortField(javaStruct.get(), eventsFid);
104570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ++count;
104670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
104770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
1048f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    std::vector<AsynchronousCloseMonitor*> monitors;
1049796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    for (size_t i = 0; i < count; ++i) {
1050f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller        monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd));
1051796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    }
1052796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    int rc = poll(fds.get(), count, timeoutMs);
1053796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    for (size_t i = 0; i < monitors.size(); ++i) {
1054796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes        delete monitors[i];
1055796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes    }
105670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    if (rc == -1) {
105770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        throwErrnoException(env, "poll");
105870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        return -1;
105970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
106070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
10615d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    // Update the revents fields in the Java android.system.StructPollfd[].
106298b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes    for (size_t i = 0; i < count; ++i) {
106370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i));
106498b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes        if (javaStruct.get() == NULL) {
106598b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes            return -1;
106698b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes        }
106770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes        env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents);
106870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    }
106970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes    return rc;
107070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes}
107170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes
107211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughesstatic void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd, jlong offset, jlong length) {
107311f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
107411f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    errno = TEMP_FAILURE_RETRY(posix_fallocate64(fd, offset, length));
107511f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    if (errno != 0) {
107611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes        throwErrnoException(env, "posix_fallocate");
107711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    }
107811f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes}
107911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes
10805215e4c0db7530519981f1e505e6db82401802f2Nick Kralevichstatic jint Posix_prctl(JNIEnv* env, jobject, jint option, jlong arg2, jlong arg3, jlong arg4, jlong arg5) {
10815215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich    int result = prctl(static_cast<int>(option),
10825215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich                       static_cast<unsigned long>(arg2), static_cast<unsigned long>(arg3),
10835215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich                       static_cast<unsigned long>(arg4), static_cast<unsigned long>(arg5));
10845215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich    return throwIfMinusOne(env, "prctl", result);
10855215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich}
10865215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich
1087e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) {
1088e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
1089e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    if (bytes.get() == NULL) {
1090e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes        return -1;
1091e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    }
1092f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset);
1093e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes}
1094e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes
1095e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughesstatic jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) {
1096e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    ScopedBytesRO bytes(env, javaBytes);
1097e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    if (bytes.get() == NULL) {
1098e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes        return -1;
1099e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    }
1100f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset);
1101e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes}
1102e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes
11030568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) {
11040568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
110526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes    if (bytes.get() == NULL) {
110626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes        return -1;
110726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes    }
1108f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount);
110926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes}
111026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes
11110b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughesstatic jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) {
11120b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    ScopedUtfChars path(env, javaPath);
11130b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    if (path.c_str() == NULL) {
11140b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        return NULL;
11150b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    }
11160b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes
11170b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    std::string result;
11180b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    if (!readlink(path.c_str(), result)) {
11190b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        throwErrnoException(env, "readlink");
11200b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes        return NULL;
11210b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    }
11220b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    return env->NewStringUTF(result.c_str());
11230b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes}
11240b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes
1125bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) {
11268dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers));
1127bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    if (!ioVec.init(buffers, offsets, byteCounts)) {
1128bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return -1;
1129bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
1130f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size());
1131bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}
1132bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
113323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesstatic jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) {
113423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    ScopedBytesRW bytes(env, javaBytes);
113523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    if (bytes.get() == NULL) {
113623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes        return -1;
113723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    }
113823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    sockaddr_storage ss;
113923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    socklen_t sl = sizeof(ss);
114023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    memset(&ss, 0, sizeof(ss));
114123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL;
114223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0;
11431124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes    jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength);
1144482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    fillInetSocketAddress(env, recvCount, javaInetSocketAddress, ss);
114523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    return recvCount;
114623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes}
114723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes
1148c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughesstatic void Posix_remove(JNIEnv* env, jobject, jstring javaPath) {
1149c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    ScopedUtfChars path(env, javaPath);
1150c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    if (path.c_str() == NULL) {
1151c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes        return;
1152c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    }
1153c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str())));
1154c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes}
1155c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes
1156a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) {
1157a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars oldPath(env, javaOldPath);
1158a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (oldPath.c_str() == NULL) {
1159a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1160a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1161a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars newPath(env, javaNewPath);
1162a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (newPath.c_str() == NULL) {
1163a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1164a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1165a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str())));
1166a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes}
1167a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes
11688b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesstatic jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) {
11698b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int outFd = jniGetFDFromFileDescriptor(env, javaOutFd);
11708b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    int inFd = jniGetFDFromFileDescriptor(env, javaInFd);
11718b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J");
11728b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    off_t offset = 0;
11738b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    off_t* offsetPtr = NULL;
11748b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (javaOffset != NULL) {
11758b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        // TODO: fix bionic so we can have a 64-bit off_t!
11768b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        offset = env->GetLongField(javaOffset, valueFid);
11778b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        offsetPtr = &offset;
11788b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
11798b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount)));
11808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    if (javaOffset != NULL) {
11818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes        env->SetLongField(javaOffset, valueFid, offset);
11828b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    }
11838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes    return result;
11848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes}
11858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes
118690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughesstatic jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) {
118790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    ScopedBytesRO bytes(env, javaBytes);
118890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    if (bytes.get() == NULL) {
118990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes        return -1;
119090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    }
119190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    sockaddr_storage ss;
1192482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len = 0;
1193482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len)) {
119490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes        return -1;
119590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    }
119690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL;
1197482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, to, sa_len);
119890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes}
119990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes
1200396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setegid(JNIEnv* env, jobject, jint egid) {
1201396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid)));
1202396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1203396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1204895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) {
1205895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars name(env, javaName);
1206895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (name.c_str() == NULL) {
1207895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
1208895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
1209895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars value(env, javaValue);
1210895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (value.c_str() == NULL) {
1211895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
1212895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
1213895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite));
1214895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes}
1215895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes
1216396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_seteuid(JNIEnv* env, jobject, jint euid) {
1217396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid)));
1218396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1219396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
1220396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setgid(JNIEnv* env, jobject, jint gid) {
1221396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid)));
1222396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1223396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
12246c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughesstatic jint Posix_setsid(JNIEnv* env, jobject) {
12256c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes    return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid()));
12266c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes}
12276c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes
1228c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1229c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1230c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    u_char byte = value;
1231c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte))));
1232c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1233c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1234a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) {
1235a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    struct ifreq req;
1236a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    if (!fillIfreq(env, javaInterfaceName, req)) {
1237b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes        return;
1238b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    }
1239b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1240b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))));
1241b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes}
1242b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes
1243454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1244454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1245454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1246454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes}
1247454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes
12486c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1070
12496c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes// Mac OS didn't support modern multicast APIs until 10.7.
12506c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv*, jobject, jobject, jint, jint, jint) { abort(); }
12516c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); }
1252df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); }
12536c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#else
1254b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughesstatic void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) {
1255b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    ip_mreqn req;
1256b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    memset(&req, 0, sizeof(req));
1257b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    req.imr_ifindex = value;
1258b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1259b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))));
1260b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes}
1261b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes
1262438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughesstatic void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) {
12638ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    struct group_req req;
12648ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    memset(&req, 0, sizeof(req));
1265438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1266438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I");
12678ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid);
1268438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    // Get the IPv4 or IPv6 multicast address to join or leave.
1269438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;");
1270e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes    ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid));
1271482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    socklen_t sa_len;
1272482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) {
1273438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        return;
1274438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    }
1275438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1276438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
12778ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes    int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)));
1278438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    if (rc == -1 && errno == EINVAL) {
1279438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        // Maybe we're a 32-bit binary talking to a 64-bit kernel?
1280438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        // glibc doesn't automatically handle this.
1281df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // http://sourceware.org/bugzilla/show_bug.cgi?id=12080
12829634b569a92841f32268907c88c408f22cb00486Elliott Hughes        struct group_req64 {
1283438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            uint32_t gr_interface;
1284438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            uint32_t my_padding;
1285438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes            sockaddr_storage gr_group;
1286438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes        };
12878ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        group_req64 req64;
12888ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        req64.gr_interface = req.gr_interface;
12898ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group));
12908ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes        rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64)));
1291438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    }
1292438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes    throwIfMinusOne(env, "setsockopt", rc);
1293438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes}
1294df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1295df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fullerstatic void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) {
1296df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    socklen_t sa_len;
1297df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    struct group_source_req req;
1298df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    memset(&req, 0, sizeof(req));
1299df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1300df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I");
1301df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid);
1302df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    // Get the IPv4 or IPv6 multicast address to join or leave.
1303df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;");
1304df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid));
1305df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) {
1306df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        return;
1307df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1308df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1309df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    // Get the IPv4 or IPv6 multicast address to add to the filter.
1310df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;");
1311df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid));
1312df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) {
1313df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        return;
1314df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1315df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller
1316df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1317df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)));
1318df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    if (rc == -1 && errno == EINVAL) {
1319df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // Maybe we're a 32-bit binary talking to a 64-bit kernel?
1320df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // glibc doesn't automatically handle this.
1321df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        // http://sourceware.org/bugzilla/show_bug.cgi?id=12080
1322df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        struct group_source_req64 {
1323df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            uint32_t gsr_interface;
1324df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            uint32_t my_padding;
1325df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            sockaddr_storage gsr_group;
1326df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller            sockaddr_storage gsr_source;
1327df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        };
1328df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        group_source_req64 req64;
1329df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        req64.gsr_interface = req.gsr_interface;
1330df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group));
1331df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source));
1332df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller        rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64)));
1333df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    }
1334df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller    throwIfMinusOne(env, "setsockopt", rc);
1335df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller}
13366c1e5f4ad36c1f51687aa2b059e998a7c2db2e36Elliott Hughes#endif
1337438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes
1338c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) {
1339c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I");
1340c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I");
1341c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1342c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    struct linger value;
1343c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    value.l_onoff = env->GetIntField(javaLinger, lOnoffFid);
1344c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    value.l_linger = env->GetIntField(javaLinger, lLingerFid);
1345c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1346c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1347c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1348c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughesstatic void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) {
1349c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J");
1350c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J");
1351c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1352c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    struct timeval value;
135339fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes    value.tv_sec = env->GetLongField(javaTimeval, tvSecFid);
135439fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes    value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid);
1355c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value))));
1356c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes}
1357c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes
1358396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughesstatic void Posix_setuid(JNIEnv* env, jobject, jint uid) {
1359396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid)));
1360396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes}
1361396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes
136259e4744d27231f260271dbbca406e0cc39768116Elliott Hughesstatic void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) {
136359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    int fd = jniGetFDFromFileDescriptor(env, javaFd);
136459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how)));
136559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes}
136659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes
1367454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughesstatic jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) {
1368454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol)));
1369454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL;
1370454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes}
1371454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes
13723218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughesstatic void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) {
13733218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    int fds[2];
13743218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds)));
13753218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    if (rc != -1) {
13763218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes        jniSetFileDescriptorOfFD(env, javaFd1, fds[0]);
13773218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes        jniSetFileDescriptorOfFD(env, javaFd2, fds[1]);
13783218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    }
13793218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes}
13803218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes
138147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) {
138247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes    return doStat(env, javaPath, false);
138347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes}
138447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes
1385721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) {
138659fa7163774d6930a174bc038414a4b780581957Elliott Hughes    ScopedUtfChars path(env, javaPath);
138759fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (path.c_str() == NULL) {
138859fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
138959fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
1390721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    struct statvfs sb;
1391721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb));
139259fa7163774d6930a174bc038414a4b780581957Elliott Hughes    if (rc == -1) {
1393721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes        throwErrnoException(env, "statvfs");
139459fa7163774d6930a174bc038414a4b780581957Elliott Hughes        return NULL;
139559fa7163774d6930a174bc038414a4b780581957Elliott Hughes    }
1396721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes    return makeStructStatVfs(env, sb);
139759fa7163774d6930a174bc038414a4b780581957Elliott Hughes}
139859fa7163774d6930a174bc038414a4b780581957Elliott Hughes
1399ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughesstatic jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) {
140052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    char buffer[BUFSIZ];
1401ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    const char* message = jniStrError(errnum, buffer, sizeof(buffer));
1402ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    return env->NewStringUTF(message);
1403ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes}
1404ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes
1405763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughesstatic jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) {
1406763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes    return env->NewStringUTF(strsignal(signal));
1407763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes}
1408763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes
1409a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughesstatic void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) {
1410a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars oldPath(env, javaOldPath);
1411a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (oldPath.c_str() == NULL) {
1412a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1413a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1414a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    ScopedUtfChars newPath(env, javaNewPath);
1415a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    if (newPath.c_str() == NULL) {
1416a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes        return;
1417a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    }
1418a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str())));
1419a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes}
1420a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes
14216fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughesstatic jlong Posix_sysconf(JNIEnv* env, jobject, jint name) {
14226fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward.
14236fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    errno = 0;
14246fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    long result = sysconf(name);
14256fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    if (result == -1L && errno == EINVAL) {
14267e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes        throwErrnoException(env, "sysconf");
14276fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    }
14286fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    return result;
14296fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes}
14306fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes
1431bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestigstatic void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) {
1432bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    int fd = jniGetFDFromFileDescriptor(env, javaFd);
1433bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd)));
1434bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig}
1435bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig
1436039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughesstatic void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) {
1437039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes  int fd = jniGetFDFromFileDescriptor(env, javaFd);
1438039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes  throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration)));
1439039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes}
1440039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes
1441c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevichstatic jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) {
144244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    return umask(mask);
144344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes}
144444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes
14457341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject Posix_uname(JNIEnv* env, jobject) {
14467341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    struct utsname buf;
14479b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes    if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) {
14489b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes        return NULL; // Can't happen.
14497341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    }
14507341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes    return makeStructUtsname(env, buf);
14517341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}
14527341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes
1453895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughesstatic void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) {
1454895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    ScopedUtfChars name(env, javaName);
1455895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    if (name.c_str() == NULL) {
1456895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes        return;
1457895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    }
1458895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str()));
1459895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes}
1460895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes
14619e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughesstatic jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) {
14629e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    int status;
14639e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options)));
14649e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    if (rc != -1) {
14659e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes        static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I");
14669e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes        env->SetIntField(javaStatus, valueFid, status);
14679e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    }
14689e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes    return rc;
14699e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes}
14709e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes
14710568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughesstatic jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) {
14720568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    ScopedBytesRO bytes(env, javaBytes);
147378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes    if (bytes.get() == NULL) {
147478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes        return -1;
147578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes    }
1476f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount);
147778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes}
147878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes
1479bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesstatic jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) {
14808dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes    IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers));
1481bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    if (!ioVec.init(buffers, offsets, byteCounts)) {
1482bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes        return -1;
1483bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    }
1484f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size());
1485bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}
1486bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes
1487ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = {
1488553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes    NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"),
1489ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"),
1490da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes    NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"),
1491b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes    NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"),
149244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"),
1493462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes    NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"),
1494996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes    NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"),
1495396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"),
1496396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"),
1497ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"),
1498798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"),
1499798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich    NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"),
150044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"),
150144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"),
1502fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"),
1503fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes    NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"),
15045d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"),
150552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"),
15065d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"),
15075d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"),
150852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes    NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"),
1509f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes    NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"),
15104f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"),
15115d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;)[Ljava/net/InetAddress;"),
1512396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getegid, "()I"),
1513396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, geteuid, "()I"),
1514396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getgid, "()I"),
1515ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes    NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"),
15164f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes    NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"),
1517482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes    NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"),
1518396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getpid, "()I"),
1519396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getppid, "()I"),
15205d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"),
15215d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"),
15220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"),
15230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"),
15240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"),
15250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes    NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"),
15265d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"),
15275d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"),
15285d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"),
1529069525a39125c203b658c805685b6045a7d4dfebElliott Hughes    NATIVE_METHOD(Posix, gettid, "()I"),
1530396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, getuid, "()I"),
1531a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"),
1532fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes    NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"),
1533a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes    NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"),
15345d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"),
15359a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes    NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"),
1536a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes    NATIVE_METHOD(Posix, kill, "(II)V"),
153744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes    NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"),
1538e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes    NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"),
1539dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes    NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"),
15405d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"),
15410f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes    NATIVE_METHOD(Posix, mincore, "(JJ[B)V"),
1542c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"),
1543f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller    NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"),
15447e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    NATIVE_METHOD(Posix, mlock, "(JJ)V"),
15457e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"),
15467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, msync, "(JJI)V"),
15477e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes    NATIVE_METHOD(Posix, munlock, "(JJ)V"),
15487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes    NATIVE_METHOD(Posix, munmap, "(JJ)V"),
15490ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes    NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"),
155041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes    NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"),
15515d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"),
155211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes    NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"),
15535215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich    NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"),
1554e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"),
1555e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes    NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"),
15560568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"),
15570b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes    NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"),
1558bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"),
155923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes    NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"),
1560c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes    NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"),
1561a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"),
15625d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"),
156390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes    NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"),
1564396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setegid, "(I)V"),
1565895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"),
1566396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, seteuid, "(I)V"),
1567396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setgid, "(I)V"),
15686c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes    NATIVE_METHOD(Posix, setsid, "()I"),
1569c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes    NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"),
1570b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"),
1571454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"),
1572b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes    NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"),
15735d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"),
15745d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"),
15755d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"),
15765d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"),
1577396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes    NATIVE_METHOD(Posix, setuid, "(I)V"),
157859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes    NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"),
1579454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes    NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"),
15803218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes    NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"),
15815d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"),
15825d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"),
1583ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes    NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"),
1584763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes    NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"),
1585a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes    NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"),
15866fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes    NATIVE_METHOD(Posix, sysconf, "(I)J"),
1587bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig    NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"),
1588039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes    NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"),
1589c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich    NATIVE_METHOD(Posix, umaskImpl, "(I)I"),
15905d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"),
1591895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes    NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"),
15925d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes    NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"),
15930568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes    NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"),
1594bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes    NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"),
1595ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes};
15967cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_libcore_io_Posix(JNIEnv* env) {
15977cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes    jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods));
1598ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}
1599