Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "Posix" |
| 18 | |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 19 | #include "AsynchronousSocketCloseMonitor.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 20 | #include "JNIHelp.h" |
| 21 | #include "JniConstants.h" |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 22 | #include "JniException.h" |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 23 | #include "NetworkUtilities.h" |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 24 | #include "ScopedBytes.h" |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 25 | #include "ScopedLocalRef.h" |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 26 | #include "ScopedPrimitiveArray.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 27 | #include "ScopedUtfChars.h" |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 28 | #include "StaticAssert.h" |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 29 | #include "UniquePtr.h" |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 30 | #include "toStringArray.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 31 | |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 32 | #include <arpa/inet.h> |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 33 | #include <errno.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 34 | #include <fcntl.h> |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 35 | #include <net/if.h> |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 36 | #include <netdb.h> |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 37 | #include <netinet/in.h> |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 38 | #include <netinet/in.h> |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 39 | #include <poll.h> |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 40 | #include <pwd.h> |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 41 | #include <signal.h> |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 42 | #include <stdlib.h> |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 43 | #include <sys/ioctl.h> |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 44 | #include <sys/mman.h> |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 45 | #include <sys/sendfile.h> |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 46 | #include <sys/socket.h> |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 47 | #include <sys/socket.h> |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 48 | #include <sys/stat.h> |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 49 | #include <sys/time.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 50 | #include <sys/types.h> |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 51 | #include <sys/uio.h> |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 52 | #include <sys/utsname.h> |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 53 | #include <sys/vfs.h> // Bionic doesn't have <sys/statvfs.h> |
Elliott Hughes | 9e67ca7 | 2011-05-19 15:25:10 -0700 | [diff] [blame] | 54 | #include <sys/wait.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 55 | #include <unistd.h> |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 56 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 57 | #define TO_JAVA_STRING(NAME, EXP) \ |
| 58 | jstring NAME = env->NewStringUTF(EXP); \ |
| 59 | if (NAME == NULL) return NULL; |
| 60 | |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 61 | struct addrinfo_deleter { |
| 62 | void operator()(addrinfo* p) const { |
| 63 | if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. |
| 64 | freeaddrinfo(p); |
| 65 | } |
| 66 | } |
| 67 | }; |
| 68 | |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 69 | /** |
| 70 | * Used to retry syscalls that can return EINTR. This differs from TEMP_FAILURE_RETRY in that |
| 71 | * it also considers the case where the reason for failure is that another thread called |
| 72 | * Socket.close. |
| 73 | * |
| 74 | * Assumes 'JNIEnv* env' and 'jobject javaFd' (which is a java.io.FileDescriptor) are in scope. |
| 75 | * |
| 76 | * Returns the result of 'exp', though a Java exception will be pending if the result is -1. |
| 77 | * |
| 78 | * Correct usage looks like this: |
| 79 | * |
| 80 | * void Posix_syscall(JNIEnv* env, jobject javaFd, ...) { |
| 81 | * ... |
| 82 | * int fd; |
| 83 | * NET_FAILURE_RETRY("syscall", syscall(fd, ...)); // Throws on error. |
| 84 | * } |
| 85 | */ |
| 86 | #define NET_FAILURE_RETRY(syscall_name, exp) ({ \ |
| 87 | typeof (exp) _rc = -1; \ |
| 88 | do { \ |
| 89 | { \ |
| 90 | fd = jniGetFDFromFileDescriptor(env, javaFd); \ |
| 91 | AsynchronousSocketCloseMonitor monitor(fd); \ |
| 92 | _rc = (exp); \ |
| 93 | } \ |
| 94 | if (_rc == -1) { \ |
| 95 | if (jniGetFDFromFileDescriptor(env, javaFd) == -1) { \ |
| 96 | jniThrowException(env, "java/net/SocketException", "Socket closed"); \ |
| 97 | break; \ |
| 98 | } else if (errno != EINTR) { \ |
| 99 | throwErrnoException(env, syscall_name); \ |
| 100 | break; \ |
| 101 | } \ |
| 102 | } \ |
| 103 | } while (_rc == -1); \ |
| 104 | _rc; }) |
| 105 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 106 | static void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, |
| 107 | const char* functionName, int error) { |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 108 | jthrowable cause = NULL; |
| 109 | if (env->ExceptionCheck()) { |
| 110 | cause = env->ExceptionOccurred(); |
| 111 | env->ExceptionClear(); |
| 112 | } |
| 113 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 114 | ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); |
| 115 | if (detailMessage.get() == NULL) { |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 116 | // Not really much we can do here. We're probably dead in the water, |
| 117 | // but let's try to stumble on... |
| 118 | env->ExceptionClear(); |
| 119 | } |
| 120 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 121 | jobject exception; |
| 122 | if (cause != NULL) { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 123 | exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 124 | } else { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 125 | exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 126 | } |
| 127 | env->Throw(reinterpret_cast<jthrowable>(exception)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 130 | static void throwErrnoException(JNIEnv* env, const char* functionName) { |
| 131 | int error = errno; |
| 132 | static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, |
| 133 | "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); |
| 134 | static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, |
| 135 | "<init>", "(Ljava/lang/String;I)V"); |
| 136 | throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); |
| 137 | } |
| 138 | |
| 139 | static void throwGaiException(JNIEnv* env, const char* functionName, int error) { |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 140 | if (errno != 0) { |
| 141 | // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to |
| 142 | // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES |
| 143 | // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a |
| 144 | // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. |
| 145 | // http://code.google.com/p/android/issues/detail?id=15722 |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 146 | throwErrnoException(env, functionName); |
| 147 | // Deliberately fall through to throw another exception... |
| 148 | } |
| 149 | static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, |
| 150 | "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); |
| 151 | static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, |
| 152 | "<init>", "(Ljava/lang/String;I)V"); |
| 153 | throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); |
| 154 | } |
| 155 | |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 156 | template <typename rc_t> |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 157 | static rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 158 | if (rc == rc_t(-1)) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 159 | throwErrnoException(env, name); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 160 | } |
| 161 | return rc; |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 162 | } |
| 163 | |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 164 | template <typename ScopedT> |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 165 | class IoVec { |
| 166 | public: |
| 167 | IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { |
| 168 | } |
| 169 | |
| 170 | bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { |
| 171 | // We can't delete our local references until after the I/O, so make sure we have room. |
| 172 | if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { |
| 173 | return false; |
| 174 | } |
| 175 | ScopedIntArrayRO offsets(mEnv, javaOffsets); |
| 176 | if (offsets.get() == NULL) { |
| 177 | return false; |
| 178 | } |
| 179 | ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); |
| 180 | if (byteCounts.get() == NULL) { |
| 181 | return false; |
| 182 | } |
| 183 | // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 184 | // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 185 | for (size_t i = 0; i < mBufferCount; ++i) { |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 186 | jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 187 | mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); |
| 188 | jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 189 | if (ptr == NULL) { |
| 190 | return false; |
| 191 | } |
| 192 | struct iovec iov; |
| 193 | iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); |
| 194 | iov.iov_len = byteCounts[i]; |
| 195 | mIoVec.push_back(iov); |
| 196 | } |
| 197 | return true; |
| 198 | } |
| 199 | |
| 200 | ~IoVec() { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 201 | for (size_t i = 0; i < mScopedBuffers.size(); ++i) { |
| 202 | delete mScopedBuffers[i]; |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 203 | } |
| 204 | mEnv->PopLocalFrame(NULL); |
| 205 | } |
| 206 | |
| 207 | iovec* get() { |
| 208 | return &mIoVec[0]; |
| 209 | } |
| 210 | |
| 211 | size_t size() { |
| 212 | return mBufferCount; |
| 213 | } |
| 214 | |
| 215 | private: |
| 216 | JNIEnv* mEnv; |
| 217 | size_t mBufferCount; |
| 218 | std::vector<iovec> mIoVec; |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 219 | std::vector<ScopedT*> mScopedBuffers; |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 220 | }; |
| 221 | |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 222 | static jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage* ss) { |
| 223 | // TODO: support AF_UNIX and AF_UNSPEC (and other families?) |
| 224 | jint port; |
| 225 | jobject inetAddress = sockaddrToInetAddress(env, ss, &port); |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 226 | if (inetAddress == NULL) { |
| 227 | return NULL; |
| 228 | } |
| 229 | static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, "<init>", |
| 230 | "(Ljava/net/InetAddress;I)V"); |
| 231 | return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); |
| 232 | } |
| 233 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 234 | static jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { |
| 235 | TO_JAVA_STRING(pw_name, pw.pw_name); |
| 236 | TO_JAVA_STRING(pw_dir, pw.pw_dir); |
| 237 | TO_JAVA_STRING(pw_shell, pw.pw_shell); |
| 238 | static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", |
| 239 | "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); |
| 240 | return env->NewObject(JniConstants::structPasswdClass, ctor, |
| 241 | pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); |
| 242 | } |
| 243 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 244 | static jobject makeStructStat(JNIEnv* env, const struct stat& sb) { |
| 245 | static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", |
| 246 | "(JJIJIIJJJJJJJ)V"); |
| 247 | return env->NewObject(JniConstants::structStatClass, ctor, |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 248 | static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), |
| 249 | static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), |
| 250 | static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), |
| 251 | static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), |
| 252 | static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), |
| 253 | static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), |
| 254 | static_cast<jlong>(sb.st_blocks)); |
| 255 | } |
| 256 | |
| 257 | static jobject makeStructStatFs(JNIEnv* env, const struct statfs& sb) { |
| 258 | STATIC_ASSERT(sizeof(sb.f_bavail) == sizeof(jlong), statfs_not_64_bit); |
| 259 | STATIC_ASSERT(sizeof(sb.f_bfree) == sizeof(jlong), statfs_not_64_bit); |
| 260 | STATIC_ASSERT(sizeof(sb.f_blocks) == sizeof(jlong), statfs_not_64_bit); |
| 261 | |
| 262 | static jmethodID ctor = env->GetMethodID(JniConstants::structStatFsClass, "<init>", |
| 263 | "(JJJJJJJJ)V"); |
| 264 | return env->NewObject(JniConstants::structStatFsClass, ctor, static_cast<jlong>(sb.f_bsize), |
| 265 | static_cast<jlong>(sb.f_blocks), static_cast<jlong>(sb.f_bfree), |
| 266 | static_cast<jlong>(sb.f_bavail), static_cast<jlong>(sb.f_files), |
| 267 | static_cast<jlong>(sb.f_ffree), static_cast<jlong>(sb.f_namelen), |
| 268 | static_cast<jlong>(sb.f_frsize)); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 269 | } |
| 270 | |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 271 | static jobject makeStructLinger(JNIEnv* env, const struct linger& l) { |
| 272 | static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); |
| 273 | return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); |
| 274 | } |
| 275 | |
| 276 | static jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { |
| 277 | static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); |
| 278 | return env->NewObject(JniConstants::structTimevalClass, ctor, |
| 279 | static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); |
| 280 | } |
| 281 | |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 282 | static jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 283 | TO_JAVA_STRING(sysname, buf.sysname); |
| 284 | TO_JAVA_STRING(nodename, buf.nodename); |
| 285 | TO_JAVA_STRING(release, buf.release); |
| 286 | TO_JAVA_STRING(version, buf.version); |
| 287 | TO_JAVA_STRING(machine, buf.machine); |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 288 | static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", |
| 289 | "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); |
| 290 | return env->NewObject(JniConstants::structUtsnameClass, ctor, |
| 291 | sysname, nodename, release, version, machine); |
| 292 | }; |
| 293 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 294 | static bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { |
| 295 | ScopedUtfChars interfaceName(env, javaInterfaceName); |
| 296 | if (interfaceName.c_str() == NULL) { |
| 297 | return false; |
| 298 | } |
| 299 | memset(&req, 0, sizeof(req)); |
| 300 | strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); |
| 301 | req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; |
| 302 | return true; |
| 303 | } |
| 304 | |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 305 | static bool fillInetSocketAddress(JNIEnv* env, jint rc, jobject javaInetSocketAddress, const sockaddr_storage* ss) { |
| 306 | if (rc == -1 || javaInetSocketAddress == NULL) { |
| 307 | return true; |
| 308 | } |
| 309 | // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. |
| 310 | jint port; |
| 311 | jobject sender = sockaddrToInetAddress(env, ss, &port); |
| 312 | if (sender == NULL) { |
| 313 | return false; |
| 314 | } |
| 315 | static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); |
| 316 | static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); |
| 317 | env->SetObjectField(javaInetSocketAddress, addressFid, sender); |
| 318 | env->SetIntField(javaInetSocketAddress, portFid, port); |
| 319 | return true; |
| 320 | } |
| 321 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 322 | static jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { |
| 323 | ScopedUtfChars path(env, javaPath); |
| 324 | if (path.c_str() == NULL) { |
| 325 | return NULL; |
| 326 | } |
| 327 | struct stat sb; |
| 328 | int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) |
| 329 | : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 330 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 331 | throwErrnoException(env, isLstat ? "lstat" : "stat"); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 332 | return NULL; |
| 333 | } |
| 334 | return makeStructStat(env, sb); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 335 | } |
| 336 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 337 | class Passwd { |
| 338 | public: |
| 339 | Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { |
| 340 | mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); |
| 341 | if (mBufferSize == -1UL) { |
| 342 | // We're probably on bionic, where 1KiB should be enough for anyone. |
| 343 | // TODO: fix bionic to return 1024 like glibc. |
| 344 | mBufferSize = 1024; |
| 345 | } |
| 346 | mBuffer.reset(new char[mBufferSize]); |
| 347 | } |
| 348 | |
| 349 | jobject getpwnam(const char* name) { |
| 350 | return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); |
| 351 | } |
| 352 | |
| 353 | jobject getpwuid(uid_t uid) { |
| 354 | return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); |
| 355 | } |
| 356 | |
| 357 | struct passwd* get() { |
| 358 | return mResult; |
| 359 | } |
| 360 | |
| 361 | private: |
| 362 | jobject process(const char* syscall, int error) { |
| 363 | if (mResult == NULL) { |
| 364 | errno = error; |
| 365 | throwErrnoException(mEnv, syscall); |
| 366 | return NULL; |
| 367 | } |
| 368 | return makeStructPasswd(mEnv, *mResult); |
| 369 | } |
| 370 | |
| 371 | JNIEnv* mEnv; |
| 372 | UniquePtr<char[]> mBuffer; |
| 373 | size_t mBufferSize; |
| 374 | struct passwd mPwd; |
| 375 | struct passwd* mResult; |
| 376 | }; |
| 377 | |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 378 | static jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaInetSocketAddress) { |
| 379 | sockaddr_storage ss; |
| 380 | socklen_t sl = sizeof(ss); |
| 381 | memset(&ss, 0, sizeof(ss)); |
| 382 | int fd; |
| 383 | sockaddr* peer = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; |
| 384 | socklen_t* peerLength = (javaInetSocketAddress != NULL) ? &sl : 0; |
| 385 | jint clientFd = NET_FAILURE_RETRY("accept", accept(fd, peer, peerLength)); |
| 386 | if (clientFd == -1 || !fillInetSocketAddress(env, clientFd, javaInetSocketAddress, &ss)) { |
| 387 | close(clientFd); |
| 388 | return NULL; |
| 389 | } |
| 390 | return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; |
| 391 | } |
| 392 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 393 | static jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 394 | ScopedUtfChars path(env, javaPath); |
| 395 | if (path.c_str() == NULL) { |
| 396 | return JNI_FALSE; |
| 397 | } |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 398 | int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 399 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 400 | throwErrnoException(env, "access"); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 401 | } |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 402 | return (rc == 0); |
| 403 | } |
| 404 | |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 405 | static void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { |
| 406 | sockaddr_storage ss; |
| 407 | if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { |
| 408 | return; |
| 409 | } |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 410 | int fd; |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 411 | const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 412 | NET_FAILURE_RETRY("bind", bind(fd, sa, sizeof(sockaddr_storage))); |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 413 | } |
| 414 | |
Elliott Hughes | b719019 | 2011-03-23 17:14:34 -0700 | [diff] [blame] | 415 | static void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 416 | ScopedUtfChars path(env, javaPath); |
| 417 | if (path.c_str() == NULL) { |
| 418 | return; |
| 419 | } |
| 420 | throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); |
| 421 | } |
| 422 | |
Elliott Hughes | 462bdac | 2011-03-30 10:43:48 -0700 | [diff] [blame] | 423 | static void Posix_close(JNIEnv* env, jobject, jobject javaFd) { |
| 424 | // Get the FileDescriptor's 'fd' field and clear it. |
| 425 | // We need to do this before we can throw an IOException (http://b/3222087). |
| 426 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 427 | jniSetFileDescriptorOfFD(env, javaFd, -1); |
| 428 | |
| 429 | // Even if close(2) fails with EINTR, the fd will have been closed. |
| 430 | // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. |
| 431 | // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html |
| 432 | throwIfMinusOne(env, "close", close(fd)); |
| 433 | } |
| 434 | |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 435 | static void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { |
| 436 | sockaddr_storage ss; |
| 437 | if (!inetAddressToSockaddr(env, javaAddress, port, &ss)) { |
| 438 | return; |
| 439 | } |
| 440 | int fd; |
| 441 | const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); |
| 442 | NET_FAILURE_RETRY("connect", connect(fd, sa, sizeof(sockaddr_storage))); |
| 443 | } |
| 444 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 445 | static jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { |
| 446 | int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); |
| 447 | int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); |
| 448 | return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; |
| 449 | } |
| 450 | |
| 451 | static jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { |
| 452 | int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); |
| 453 | int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); |
| 454 | return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; |
| 455 | } |
| 456 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 457 | static jobjectArray Posix_environ(JNIEnv* env, jobject) { |
| 458 | extern char** environ; // Standard, but not in any header file. |
| 459 | return toStringArray(env, environ); |
| 460 | } |
| 461 | |
Elliott Hughes | fc549a0 | 2011-03-24 16:38:05 -0700 | [diff] [blame] | 462 | static jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { |
| 463 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 464 | return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); |
| 465 | } |
| 466 | |
| 467 | static jint Posix_fcntlLong(JNIEnv* env, jobject, jobject javaFd, jint cmd, jlong arg) { |
| 468 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 469 | return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); |
| 470 | } |
| 471 | |
| 472 | static jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { |
| 473 | static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); |
| 474 | static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); |
| 475 | static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); |
| 476 | static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); |
| 477 | static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); |
| 478 | |
| 479 | struct flock64 lock; |
| 480 | memset(&lock, 0, sizeof(lock)); |
| 481 | lock.l_type = env->GetShortField(javaFlock, typeFid); |
| 482 | lock.l_whence = env->GetShortField(javaFlock, whenceFid); |
| 483 | lock.l_start = env->GetLongField(javaFlock, startFid); |
| 484 | lock.l_len = env->GetLongField(javaFlock, lenFid); |
| 485 | lock.l_pid = env->GetIntField(javaFlock, pidFid); |
| 486 | |
| 487 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 488 | int rc = throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, &lock))); |
| 489 | if (rc != -1) { |
| 490 | env->SetShortField(javaFlock, typeFid, lock.l_type); |
| 491 | env->SetShortField(javaFlock, whenceFid, lock.l_whence); |
| 492 | env->SetLongField(javaFlock, startFid, lock.l_start); |
| 493 | env->SetLongField(javaFlock, lenFid, lock.l_len); |
| 494 | env->SetIntField(javaFlock, pidFid, lock.l_pid); |
| 495 | } |
| 496 | return rc; |
| 497 | } |
| 498 | |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 499 | static void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { |
| 500 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 501 | throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 502 | } |
| 503 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 504 | static jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { |
| 505 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 506 | struct stat sb; |
| 507 | int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 508 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 509 | throwErrnoException(env, "fstat"); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 510 | return NULL; |
| 511 | } |
| 512 | return makeStructStat(env, sb); |
| 513 | } |
| 514 | |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 515 | static jobject Posix_fstatfs(JNIEnv* env, jobject, jobject javaFd) { |
| 516 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 517 | struct statfs sb; |
| 518 | int rc = TEMP_FAILURE_RETRY(fstatfs(fd, &sb)); |
| 519 | if (rc == -1) { |
| 520 | throwErrnoException(env, "fstatfs"); |
| 521 | return NULL; |
| 522 | } |
| 523 | return makeStructStatFs(env, sb); |
| 524 | } |
| 525 | |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 526 | static void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { |
| 527 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 528 | throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | static void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { |
| 532 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 533 | throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 534 | } |
| 535 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 536 | static jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { |
| 537 | return env->NewStringUTF(gai_strerror(error)); |
| 538 | } |
| 539 | |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 540 | static jobjectArray Posix_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, jobject javaHints) { |
| 541 | ScopedUtfChars node(env, javaNode); |
| 542 | if (node.c_str() == NULL) { |
| 543 | return NULL; |
| 544 | } |
| 545 | |
| 546 | static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); |
| 547 | static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); |
| 548 | static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); |
| 549 | static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); |
| 550 | |
| 551 | addrinfo hints; |
| 552 | memset(&hints, 0, sizeof(hints)); |
| 553 | hints.ai_flags = env->GetIntField(javaHints, flagsFid); |
| 554 | hints.ai_family = env->GetIntField(javaHints, familyFid); |
| 555 | hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); |
| 556 | hints.ai_protocol = env->GetIntField(javaHints, protocolFid); |
| 557 | |
| 558 | addrinfo* addressList = NULL; |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 559 | errno = 0; |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 560 | int rc = getaddrinfo(node.c_str(), NULL, &hints, &addressList); |
| 561 | UniquePtr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); |
| 562 | if (rc != 0) { |
| 563 | throwGaiException(env, "getaddrinfo", rc); |
| 564 | return NULL; |
| 565 | } |
| 566 | |
| 567 | // Count results so we know how to size the output array. |
| 568 | int addressCount = 0; |
| 569 | for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { |
| 570 | if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { |
| 571 | ++addressCount; |
| 572 | } else { |
Steve Block | 679cf68 | 2012-01-08 10:18:49 +0000 | [diff] [blame] | 573 | ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 574 | } |
| 575 | } |
| 576 | if (addressCount == 0) { |
| 577 | return NULL; |
| 578 | } |
| 579 | |
| 580 | // Prepare output array. |
| 581 | jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); |
| 582 | if (result == NULL) { |
| 583 | return NULL; |
| 584 | } |
| 585 | |
| 586 | // Examine returned addresses one by one, save them in the output array. |
| 587 | int index = 0; |
| 588 | for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { |
| 589 | if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { |
| 590 | // Unknown address family. Skip this address. |
Steve Block | 679cf68 | 2012-01-08 10:18:49 +0000 | [diff] [blame] | 591 | ALOGE("getaddrinfo unexpected ai_family %i", ai->ai_family); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 592 | continue; |
| 593 | } |
| 594 | |
| 595 | // Convert each IP address into a Java byte array. |
| 596 | sockaddr_storage* address = reinterpret_cast<sockaddr_storage*>(ai->ai_addr); |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 597 | ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 598 | if (inetAddress.get() == NULL) { |
| 599 | return NULL; |
| 600 | } |
| 601 | env->SetObjectArrayElement(result, index, inetAddress.get()); |
| 602 | ++index; |
| 603 | } |
| 604 | return result; |
| 605 | } |
| 606 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 607 | static jint Posix_getegid(JNIEnv*, jobject) { |
| 608 | return getegid(); |
| 609 | } |
| 610 | |
| 611 | static jint Posix_geteuid(JNIEnv*, jobject) { |
| 612 | return geteuid(); |
| 613 | } |
| 614 | |
| 615 | static jint Posix_getgid(JNIEnv*, jobject) { |
| 616 | return getgid(); |
| 617 | } |
| 618 | |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 619 | static jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { |
| 620 | ScopedUtfChars name(env, javaName); |
| 621 | if (name.c_str() == NULL) { |
| 622 | return NULL; |
| 623 | } |
| 624 | return env->NewStringUTF(getenv(name.c_str())); |
| 625 | } |
| 626 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 627 | static jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { |
| 628 | sockaddr_storage ss; |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 629 | if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, &ss)) { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 630 | return NULL; |
| 631 | } |
| 632 | // TODO: bionic's getnameinfo(3) seems to want its length parameter to be exactly |
| 633 | // sizeof(sockaddr_in) for an IPv4 address and sizeof (sockaddr_in6) for an |
| 634 | // IPv6 address. Fix getnameinfo so it accepts sizeof(sockaddr_storage), and |
| 635 | // then remove this hack. |
| 636 | socklen_t size = (ss.ss_family == AF_INET) ? sizeof(sockaddr_in) : sizeof(sockaddr_in6); |
| 637 | char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 638 | errno = 0; |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 639 | int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), size, buf, sizeof(buf), NULL, 0, flags); |
| 640 | if (rc != 0) { |
| 641 | throwGaiException(env, "getnameinfo", rc); |
| 642 | return NULL; |
| 643 | } |
| 644 | return env->NewStringUTF(buf); |
| 645 | } |
| 646 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 647 | static jint Posix_getpid(JNIEnv*, jobject) { |
| 648 | return getpid(); |
| 649 | } |
| 650 | |
| 651 | static jint Posix_getppid(JNIEnv*, jobject) { |
| 652 | return getppid(); |
| 653 | } |
| 654 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 655 | static jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { |
| 656 | ScopedUtfChars name(env, javaName); |
| 657 | if (name.c_str() == NULL) { |
| 658 | return NULL; |
| 659 | } |
| 660 | return Passwd(env).getpwnam(name.c_str()); |
| 661 | } |
| 662 | |
| 663 | static jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { |
| 664 | return Passwd(env).getpwuid(uid); |
| 665 | } |
| 666 | |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 667 | static jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { |
| 668 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 669 | sockaddr_storage ss; |
| 670 | sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); |
| 671 | socklen_t byteCount = sizeof(ss); |
| 672 | memset(&ss, 0, byteCount); |
| 673 | int rc = TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)); |
| 674 | if (rc == -1) { |
| 675 | throwErrnoException(env, "getsockname"); |
| 676 | return NULL; |
| 677 | } |
| 678 | return makeSocketAddress(env, &ss); |
| 679 | } |
| 680 | |
| 681 | static jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 682 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 683 | u_char result = 0; |
| 684 | socklen_t size = sizeof(result); |
| 685 | throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); |
| 686 | return result; |
| 687 | } |
| 688 | |
| 689 | static jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 690 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 691 | sockaddr_storage ss; |
| 692 | memset(&ss, 0, sizeof(ss)); |
| 693 | ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. |
| 694 | sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); |
| 695 | socklen_t size = sizeof(sa->sin_addr); |
| 696 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); |
| 697 | if (rc == -1) { |
| 698 | throwErrnoException(env, "getsockopt"); |
| 699 | return NULL; |
| 700 | } |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 701 | return sockaddrToInetAddress(env, &ss, NULL); |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 702 | } |
| 703 | |
| 704 | static jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 705 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 706 | jint result = 0; |
| 707 | socklen_t size = sizeof(result); |
| 708 | throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); |
| 709 | return result; |
| 710 | } |
| 711 | |
| 712 | static jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 713 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 714 | struct linger l; |
| 715 | socklen_t size = sizeof(l); |
| 716 | memset(&l, 0, size); |
| 717 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); |
| 718 | if (rc == -1) { |
| 719 | throwErrnoException(env, "getsockopt"); |
| 720 | return NULL; |
| 721 | } |
| 722 | return makeStructLinger(env, l); |
| 723 | } |
| 724 | |
| 725 | static jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 726 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 727 | struct timeval tv; |
| 728 | socklen_t size = sizeof(tv); |
| 729 | memset(&tv, 0, size); |
| 730 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); |
| 731 | if (rc == -1) { |
| 732 | throwErrnoException(env, "getsockopt"); |
| 733 | return NULL; |
| 734 | } |
| 735 | return makeStructTimeval(env, tv); |
| 736 | } |
| 737 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 738 | static jint Posix_getuid(JNIEnv*, jobject) { |
| 739 | return getuid(); |
| 740 | } |
| 741 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 742 | static jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { |
| 743 | char buf[IF_NAMESIZE]; |
| 744 | char* name = if_indextoname(index, buf); |
| 745 | // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. |
| 746 | // There's no useful information in errno, so we don't bother throwing. Callers can null-check. |
| 747 | return env->NewStringUTF(name); |
| 748 | } |
| 749 | |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 750 | static jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 751 | ScopedUtfChars name(env, javaName); |
| 752 | if (name.c_str() == NULL) { |
| 753 | return NULL; |
| 754 | } |
| 755 | sockaddr_storage ss; |
| 756 | memset(&ss, 0, sizeof(ss)); |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 757 | // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. |
| 758 | void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; |
| 759 | if (inet_pton(family, name.c_str(), dst) != 1) { |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 760 | return NULL; |
| 761 | } |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 762 | ss.ss_family = family; |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 763 | return sockaddrToInetAddress(env, &ss, NULL); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 764 | } |
| 765 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 766 | static jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { |
| 767 | struct ifreq req; |
| 768 | if (!fillIfreq(env, javaInterfaceName, req)) { |
| 769 | return NULL; |
| 770 | } |
| 771 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 772 | int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); |
| 773 | if (rc == -1) { |
| 774 | return NULL; |
| 775 | } |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 776 | return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage*>(&req.ifr_addr), NULL); |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 777 | } |
| 778 | |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 779 | static jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { |
| 780 | // This is complicated because ioctls may return their result by updating their argument |
| 781 | // or via their return value, so we need to support both. |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 782 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 783 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); |
| 784 | jint arg = env->GetIntField(javaArg, valueFid); |
| 785 | int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); |
| 786 | if (!env->ExceptionCheck()) { |
| 787 | env->SetIntField(javaArg, valueFid, arg); |
| 788 | } |
| 789 | return rc; |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 790 | } |
| 791 | |
Elliott Hughes | 9a3f363 | 2011-03-18 16:30:53 -0700 | [diff] [blame] | 792 | static jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { |
| 793 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 794 | return TEMP_FAILURE_RETRY(isatty(fd)) == 0; |
| 795 | } |
| 796 | |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 797 | static void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { |
| 798 | throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); |
| 799 | } |
| 800 | |
Elliott Hughes | e1502d6 | 2011-03-24 11:57:08 -0700 | [diff] [blame] | 801 | static void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { |
| 802 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 803 | throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); |
| 804 | } |
| 805 | |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 806 | static jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { |
| 807 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 808 | return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 809 | } |
| 810 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 811 | static jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { |
| 812 | return doStat(env, javaPath, true); |
| 813 | } |
| 814 | |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 815 | static void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { |
| 816 | ScopedByteArrayRW vector(env, javaVector); |
| 817 | if (vector.get() == NULL) { |
| 818 | return; |
| 819 | } |
| 820 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 821 | unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); |
| 822 | throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); |
| 823 | } |
| 824 | |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 825 | static void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 826 | ScopedUtfChars path(env, javaPath); |
| 827 | if (path.c_str() == NULL) { |
| 828 | return; |
| 829 | } |
| 830 | throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); |
| 831 | } |
| 832 | |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 833 | static void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 834 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 835 | throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); |
| 836 | } |
| 837 | |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 838 | static jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { |
| 839 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 840 | void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 841 | void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); |
| 842 | if (ptr == MAP_FAILED) { |
| 843 | throwErrnoException(env, "mmap"); |
| 844 | } |
| 845 | return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); |
| 846 | } |
| 847 | |
| 848 | static void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { |
| 849 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 850 | throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); |
| 851 | } |
| 852 | |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 853 | static void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 854 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 855 | throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); |
| 856 | } |
| 857 | |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 858 | static void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 859 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 860 | throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); |
| 861 | } |
| 862 | |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 863 | static jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { |
| 864 | ScopedUtfChars path(env, javaPath); |
| 865 | if (path.c_str() == NULL) { |
| 866 | return NULL; |
| 867 | } |
| 868 | int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); |
| 869 | return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; |
| 870 | } |
| 871 | |
Elliott Hughes | 41f0605 | 2011-03-24 10:48:09 -0700 | [diff] [blame] | 872 | static jobjectArray Posix_pipe(JNIEnv* env, jobject) { |
| 873 | int fds[2]; |
| 874 | throwIfMinusOne(env, "pipe", TEMP_FAILURE_RETRY(pipe(&fds[0]))); |
| 875 | jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); |
| 876 | if (result == NULL) { |
| 877 | return NULL; |
| 878 | } |
| 879 | for (int i = 0; i < 2; ++i) { |
| 880 | ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); |
| 881 | if (fd.get() == NULL) { |
| 882 | return NULL; |
| 883 | } |
| 884 | env->SetObjectArrayElement(result, i, fd.get()); |
| 885 | if (env->ExceptionCheck()) { |
| 886 | return NULL; |
| 887 | } |
| 888 | } |
| 889 | return result; |
| 890 | } |
| 891 | |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 892 | static jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { |
| 893 | static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); |
| 894 | static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); |
| 895 | static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); |
| 896 | |
| 897 | // Turn the Java libcore.io.StructPollfd[] into a C++ struct pollfd[]. |
| 898 | size_t arrayLength = env->GetArrayLength(javaStructs); |
| 899 | UniquePtr<struct pollfd[]> fds(new struct pollfd[arrayLength]); |
| 900 | memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); |
| 901 | size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) |
| 902 | for (size_t i = 0; i < arrayLength; ++i) { |
| 903 | ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); |
| 904 | if (javaStruct.get() == NULL) { |
| 905 | break; // We allow trailing nulls in the array for caller convenience. |
| 906 | } |
| 907 | ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); |
| 908 | if (javaFd.get() == NULL) { |
| 909 | break; // We also allow callers to just clear the fd field (this is what Selector does). |
| 910 | } |
| 911 | fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); |
| 912 | fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); |
| 913 | ++count; |
| 914 | } |
| 915 | |
Elliott Hughes | 796f0d5 | 2012-02-16 14:35:26 -0800 | [diff] [blame] | 916 | // Since we don't know which fds -- if any -- are sockets, be conservative and register |
| 917 | // all fds for asynchronous socket close monitoring. |
| 918 | std::vector<AsynchronousSocketCloseMonitor*> monitors; |
| 919 | for (size_t i = 0; i < count; ++i) { |
| 920 | monitors.push_back(new AsynchronousSocketCloseMonitor(fds[i].fd)); |
| 921 | } |
| 922 | int rc = poll(fds.get(), count, timeoutMs); |
| 923 | for (size_t i = 0; i < monitors.size(); ++i) { |
| 924 | delete monitors[i]; |
| 925 | } |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 926 | if (rc == -1) { |
| 927 | throwErrnoException(env, "poll"); |
| 928 | return -1; |
| 929 | } |
| 930 | |
| 931 | // Update the revents fields in the Java libcore.io.StructPollfd[]. |
Elliott Hughes | 98b23d4 | 2011-05-12 12:19:13 -0700 | [diff] [blame] | 932 | for (size_t i = 0; i < count; ++i) { |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 933 | ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); |
Elliott Hughes | 98b23d4 | 2011-05-12 12:19:13 -0700 | [diff] [blame] | 934 | if (javaStruct.get() == NULL) { |
| 935 | return -1; |
| 936 | } |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 937 | env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); |
| 938 | } |
| 939 | return rc; |
| 940 | } |
| 941 | |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 942 | static jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { |
| 943 | ScopedBytesRW bytes(env, javaBytes); |
| 944 | if (bytes.get() == NULL) { |
| 945 | return -1; |
| 946 | } |
| 947 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 948 | return throwIfMinusOne(env, "pread", TEMP_FAILURE_RETRY(pread64(fd, bytes.get() + byteOffset, byteCount, offset))); |
| 949 | } |
| 950 | |
| 951 | static jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { |
| 952 | ScopedBytesRO bytes(env, javaBytes); |
| 953 | if (bytes.get() == NULL) { |
| 954 | return -1; |
| 955 | } |
| 956 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 957 | return throwIfMinusOne(env, "pwrite", TEMP_FAILURE_RETRY(pwrite64(fd, bytes.get() + byteOffset, byteCount, offset))); |
| 958 | } |
| 959 | |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 960 | static jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { |
| 961 | ScopedBytesRW bytes(env, javaBytes); |
Elliott Hughes | 26c7025 | 2011-03-25 17:07:28 -0700 | [diff] [blame] | 962 | if (bytes.get() == NULL) { |
| 963 | return -1; |
| 964 | } |
Elliott Hughes | 26c7025 | 2011-03-25 17:07:28 -0700 | [diff] [blame] | 965 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 966 | return throwIfMinusOne(env, "read", TEMP_FAILURE_RETRY(read(fd, bytes.get() + byteOffset, byteCount))); |
Elliott Hughes | 26c7025 | 2011-03-25 17:07:28 -0700 | [diff] [blame] | 967 | } |
| 968 | |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 969 | static jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 970 | IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 971 | if (!ioVec.init(buffers, offsets, byteCounts)) { |
| 972 | return -1; |
| 973 | } |
| 974 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 975 | return throwIfMinusOne(env, "readv", TEMP_FAILURE_RETRY(readv(fd, ioVec.get(), ioVec.size()))); |
| 976 | } |
| 977 | |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 978 | static jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { |
| 979 | ScopedBytesRW bytes(env, javaBytes); |
| 980 | if (bytes.get() == NULL) { |
| 981 | return -1; |
| 982 | } |
| 983 | sockaddr_storage ss; |
| 984 | socklen_t sl = sizeof(ss); |
| 985 | memset(&ss, 0, sizeof(ss)); |
| 986 | int fd; |
| 987 | sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; |
| 988 | socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; |
| 989 | jint recvCount = NET_FAILURE_RETRY("recvfrom", recvfrom(fd, bytes.get() + byteOffset, byteCount, flags, from, fromLength)); |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 990 | fillInetSocketAddress(env, recvCount, javaInetSocketAddress, &ss); |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 991 | return recvCount; |
| 992 | } |
| 993 | |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 994 | static void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { |
| 995 | ScopedUtfChars path(env, javaPath); |
| 996 | if (path.c_str() == NULL) { |
| 997 | return; |
| 998 | } |
| 999 | throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); |
| 1000 | } |
| 1001 | |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1002 | static void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { |
| 1003 | ScopedUtfChars oldPath(env, javaOldPath); |
| 1004 | if (oldPath.c_str() == NULL) { |
| 1005 | return; |
| 1006 | } |
| 1007 | ScopedUtfChars newPath(env, javaNewPath); |
| 1008 | if (newPath.c_str() == NULL) { |
| 1009 | return; |
| 1010 | } |
| 1011 | throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); |
| 1012 | } |
| 1013 | |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1014 | static jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { |
| 1015 | int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); |
| 1016 | int inFd = jniGetFDFromFileDescriptor(env, javaInFd); |
| 1017 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); |
| 1018 | off_t offset = 0; |
| 1019 | off_t* offsetPtr = NULL; |
| 1020 | if (javaOffset != NULL) { |
| 1021 | // TODO: fix bionic so we can have a 64-bit off_t! |
| 1022 | offset = env->GetLongField(javaOffset, valueFid); |
| 1023 | offsetPtr = &offset; |
| 1024 | } |
| 1025 | jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); |
| 1026 | if (javaOffset != NULL) { |
| 1027 | env->SetLongField(javaOffset, valueFid, offset); |
| 1028 | } |
| 1029 | return result; |
| 1030 | } |
| 1031 | |
Elliott Hughes | 90d96a4 | 2011-05-16 16:43:48 -0700 | [diff] [blame] | 1032 | static jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { |
| 1033 | ScopedBytesRO bytes(env, javaBytes); |
| 1034 | if (bytes.get() == NULL) { |
| 1035 | return -1; |
| 1036 | } |
| 1037 | sockaddr_storage ss; |
| 1038 | if (javaInetAddress != NULL && !inetAddressToSockaddr(env, javaInetAddress, port, &ss)) { |
| 1039 | return -1; |
| 1040 | } |
| 1041 | int fd; |
| 1042 | const sockaddr* to = (javaInetAddress != NULL) ? reinterpret_cast<const sockaddr*>(&ss) : NULL; |
| 1043 | socklen_t toLength = (javaInetAddress != NULL) ? sizeof(ss) : 0; |
| 1044 | return NET_FAILURE_RETRY("sendto", sendto(fd, bytes.get() + byteOffset, byteCount, flags, to, toLength)); |
| 1045 | } |
| 1046 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1047 | static void Posix_setegid(JNIEnv* env, jobject, jint egid) { |
| 1048 | throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); |
| 1049 | } |
| 1050 | |
| 1051 | static void Posix_seteuid(JNIEnv* env, jobject, jint euid) { |
| 1052 | throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); |
| 1053 | } |
| 1054 | |
| 1055 | static void Posix_setgid(JNIEnv* env, jobject, jint gid) { |
| 1056 | throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); |
| 1057 | } |
| 1058 | |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1059 | static void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1060 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1061 | u_char byte = value; |
| 1062 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); |
| 1063 | } |
| 1064 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1065 | static void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { |
| 1066 | struct ifreq req; |
| 1067 | if (!fillIfreq(env, javaInterfaceName, req)) { |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1068 | return; |
| 1069 | } |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1070 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1071 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); |
| 1072 | } |
| 1073 | |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1074 | static void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1075 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1076 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1077 | } |
| 1078 | |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1079 | static void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1080 | ip_mreqn req; |
| 1081 | memset(&req, 0, sizeof(req)); |
| 1082 | req.imr_ifindex = value; |
| 1083 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1084 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); |
| 1085 | } |
| 1086 | |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1087 | static void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1088 | struct group_req req; |
| 1089 | memset(&req, 0, sizeof(req)); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1090 | |
| 1091 | static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1092 | req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1093 | // Get the IPv4 or IPv6 multicast address to join or leave. |
| 1094 | static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 1095 | ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1096 | if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, &req.gr_group)) { |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1097 | return; |
| 1098 | } |
| 1099 | |
| 1100 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1101 | int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1102 | if (rc == -1 && errno == EINVAL) { |
| 1103 | // Maybe we're a 32-bit binary talking to a 64-bit kernel? |
| 1104 | // glibc doesn't automatically handle this. |
Elliott Hughes | 9634b56 | 2012-05-18 09:37:47 -0700 | [diff] [blame^] | 1105 | struct group_req64 { |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1106 | uint32_t gr_interface; |
| 1107 | uint32_t my_padding; |
| 1108 | sockaddr_storage gr_group; |
| 1109 | }; |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1110 | group_req64 req64; |
| 1111 | req64.gr_interface = req.gr_interface; |
| 1112 | memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); |
| 1113 | rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1114 | } |
| 1115 | throwIfMinusOne(env, "setsockopt", rc); |
| 1116 | } |
| 1117 | |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1118 | static void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { |
| 1119 | static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); |
| 1120 | static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); |
| 1121 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1122 | struct linger value; |
| 1123 | value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); |
| 1124 | value.l_linger = env->GetIntField(javaLinger, lLingerFid); |
| 1125 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1126 | } |
| 1127 | |
| 1128 | static void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { |
| 1129 | static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); |
| 1130 | static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); |
| 1131 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1132 | struct timeval value; |
Elliott Hughes | 39fd5e1 | 2011-08-14 11:29:07 -0700 | [diff] [blame] | 1133 | value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); |
| 1134 | value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1135 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1136 | } |
| 1137 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1138 | static void Posix_setuid(JNIEnv* env, jobject, jint uid) { |
| 1139 | throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); |
| 1140 | } |
| 1141 | |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 1142 | static void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { |
| 1143 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1144 | throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); |
| 1145 | } |
| 1146 | |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1147 | static jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { |
| 1148 | int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); |
| 1149 | return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; |
| 1150 | } |
| 1151 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1152 | static jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { |
| 1153 | return doStat(env, javaPath, false); |
| 1154 | } |
| 1155 | |
Elliott Hughes | 0ade552 | 2011-03-31 11:09:25 -0700 | [diff] [blame] | 1156 | static jobject Posix_statfs(JNIEnv* env, jobject, jstring javaPath) { |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1157 | ScopedUtfChars path(env, javaPath); |
| 1158 | if (path.c_str() == NULL) { |
| 1159 | return NULL; |
| 1160 | } |
| 1161 | struct statfs sb; |
| 1162 | int rc = TEMP_FAILURE_RETRY(statfs(path.c_str(), &sb)); |
| 1163 | if (rc == -1) { |
| 1164 | throwErrnoException(env, "statfs"); |
| 1165 | return NULL; |
| 1166 | } |
| 1167 | return makeStructStatFs(env, sb); |
| 1168 | } |
| 1169 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1170 | static jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 1171 | char buffer[BUFSIZ]; |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1172 | const char* message = jniStrError(errnum, buffer, sizeof(buffer)); |
| 1173 | return env->NewStringUTF(message); |
| 1174 | } |
| 1175 | |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1176 | static void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { |
| 1177 | ScopedUtfChars oldPath(env, javaOldPath); |
| 1178 | if (oldPath.c_str() == NULL) { |
| 1179 | return; |
| 1180 | } |
| 1181 | ScopedUtfChars newPath(env, javaNewPath); |
| 1182 | if (newPath.c_str() == NULL) { |
| 1183 | return; |
| 1184 | } |
| 1185 | throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); |
| 1186 | } |
| 1187 | |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 1188 | static jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { |
| 1189 | // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. |
| 1190 | errno = 0; |
| 1191 | long result = sysconf(name); |
| 1192 | if (result == -1L && errno == EINVAL) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1193 | throwErrnoException(env, "sysconf"); |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 1194 | } |
| 1195 | return result; |
| 1196 | } |
| 1197 | |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 1198 | static jobject Posix_uname(JNIEnv* env, jobject) { |
| 1199 | struct utsname buf; |
Elliott Hughes | 9b510df | 2011-05-27 16:48:46 -0700 | [diff] [blame] | 1200 | if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { |
| 1201 | return NULL; // Can't happen. |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 1202 | } |
| 1203 | return makeStructUtsname(env, buf); |
| 1204 | } |
| 1205 | |
Elliott Hughes | 9e67ca7 | 2011-05-19 15:25:10 -0700 | [diff] [blame] | 1206 | static jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { |
| 1207 | int status; |
| 1208 | int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); |
| 1209 | if (rc != -1) { |
| 1210 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); |
| 1211 | env->SetIntField(javaStatus, valueFid, status); |
| 1212 | } |
| 1213 | return rc; |
| 1214 | } |
| 1215 | |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1216 | static jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { |
| 1217 | ScopedBytesRO bytes(env, javaBytes); |
Elliott Hughes | 78c7cc5 | 2011-03-25 19:18:42 -0700 | [diff] [blame] | 1218 | if (bytes.get() == NULL) { |
| 1219 | return -1; |
| 1220 | } |
Elliott Hughes | 78c7cc5 | 2011-03-25 19:18:42 -0700 | [diff] [blame] | 1221 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1222 | return throwIfMinusOne(env, "write", TEMP_FAILURE_RETRY(write(fd, bytes.get() + byteOffset, byteCount))); |
Elliott Hughes | 78c7cc5 | 2011-03-25 19:18:42 -0700 | [diff] [blame] | 1223 | } |
| 1224 | |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1225 | static jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 1226 | IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1227 | if (!ioVec.init(buffers, offsets, byteCounts)) { |
| 1228 | return -1; |
| 1229 | } |
| 1230 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1231 | return throwIfMinusOne(env, "writev", TEMP_FAILURE_RETRY(writev(fd, ioVec.get(), ioVec.size()))); |
| 1232 | } |
| 1233 | |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1234 | static JNINativeMethod gMethods[] = { |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 1235 | NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/InetSocketAddress;)Ljava/io/FileDescriptor;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1236 | NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 1237 | NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), |
Elliott Hughes | b719019 | 2011-03-23 17:14:34 -0700 | [diff] [blame] | 1238 | NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), |
Elliott Hughes | 462bdac | 2011-03-30 10:43:48 -0700 | [diff] [blame] | 1239 | NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 1240 | NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1241 | NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), |
| 1242 | NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1243 | NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), |
Elliott Hughes | fc549a0 | 2011-03-24 16:38:05 -0700 | [diff] [blame] | 1244 | NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), |
| 1245 | NATIVE_METHOD(Posix, fcntlLong, "(Ljava/io/FileDescriptor;IJ)I"), |
| 1246 | NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILlibcore/io/StructFlock;)I"), |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 1247 | NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1248 | NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStat;"), |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1249 | NATIVE_METHOD(Posix, fstatfs, "(Ljava/io/FileDescriptor;)Llibcore/io/StructStatFs;"), |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 1250 | NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 1251 | NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1252 | NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1253 | NATIVE_METHOD(Posix, getaddrinfo, "(Ljava/lang/String;Llibcore/io/StructAddrinfo;)[Ljava/net/InetAddress;"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1254 | NATIVE_METHOD(Posix, getegid, "()I"), |
| 1255 | NATIVE_METHOD(Posix, geteuid, "()I"), |
| 1256 | NATIVE_METHOD(Posix, getgid, "()I"), |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1257 | NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1258 | NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1259 | NATIVE_METHOD(Posix, getpid, "()I"), |
| 1260 | NATIVE_METHOD(Posix, getppid, "()I"), |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 1261 | NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Llibcore/io/StructPasswd;"), |
| 1262 | NATIVE_METHOD(Posix, getpwuid, "(I)Llibcore/io/StructPasswd;"), |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 1263 | NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), |
| 1264 | NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), |
| 1265 | NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), |
| 1266 | NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), |
| 1267 | NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructLinger;"), |
| 1268 | NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Llibcore/io/StructTimeval;"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1269 | NATIVE_METHOD(Posix, getuid, "()I"), |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1270 | NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 1271 | NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1272 | NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1273 | NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILlibcore/util/MutableInt;)I"), |
Elliott Hughes | 9a3f363 | 2011-03-18 16:30:53 -0700 | [diff] [blame] | 1274 | NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 1275 | NATIVE_METHOD(Posix, kill, "(II)V"), |
Elliott Hughes | e1502d6 | 2011-03-24 11:57:08 -0700 | [diff] [blame] | 1276 | NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 1277 | NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1278 | NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 1279 | NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 1280 | NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 1281 | NATIVE_METHOD(Posix, mlock, "(JJ)V"), |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1282 | NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), |
| 1283 | NATIVE_METHOD(Posix, msync, "(JJI)V"), |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 1284 | NATIVE_METHOD(Posix, munlock, "(JJ)V"), |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1285 | NATIVE_METHOD(Posix, munmap, "(JJ)V"), |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 1286 | NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), |
Elliott Hughes | 41f0605 | 2011-03-24 10:48:09 -0700 | [diff] [blame] | 1287 | NATIVE_METHOD(Posix, pipe, "()[Ljava/io/FileDescriptor;"), |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1288 | NATIVE_METHOD(Posix, poll, "([Llibcore/io/StructPollfd;I)I"), |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 1289 | NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), |
| 1290 | NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1291 | NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1292 | NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 1293 | NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 1294 | NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1295 | NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1296 | NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J"), |
Elliott Hughes | 90d96a4 | 2011-05-16 16:43:48 -0700 | [diff] [blame] | 1297 | NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1298 | NATIVE_METHOD(Posix, setegid, "(I)V"), |
| 1299 | NATIVE_METHOD(Posix, seteuid, "(I)V"), |
| 1300 | NATIVE_METHOD(Posix, setgid, "(I)V"), |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1301 | NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1302 | NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1303 | NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1304 | NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1305 | NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILlibcore/io/StructGroupReq;)V"), |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1306 | NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILlibcore/io/StructLinger;)V"), |
| 1307 | NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILlibcore/io/StructTimeval;)V"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1308 | NATIVE_METHOD(Posix, setuid, "(I)V"), |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 1309 | NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1310 | NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1311 | NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Llibcore/io/StructStat;"), |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1312 | NATIVE_METHOD(Posix, statfs, "(Ljava/lang/String;)Llibcore/io/StructStatFs;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1313 | NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1314 | NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 1315 | NATIVE_METHOD(Posix, sysconf, "(I)J"), |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 1316 | NATIVE_METHOD(Posix, uname, "()Llibcore/io/StructUtsname;"), |
Elliott Hughes | 9e67ca7 | 2011-05-19 15:25:10 -0700 | [diff] [blame] | 1317 | NATIVE_METHOD(Posix, waitpid, "(ILlibcore/util/MutableInt;I)I"), |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1318 | NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1319 | NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1320 | }; |
Elliott Hughes | 7cd6760 | 2012-05-03 17:21:04 -0700 | [diff] [blame] | 1321 | void register_libcore_io_Posix(JNIEnv* env) { |
| 1322 | jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1323 | } |