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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 #if !defined(DART_IO_DISABLED) | |
| 6 | |
| 7 #include "platform/globals.h" | |
| 8 #if defined(TARGET_OS_ANDROID) | |
| 9 | |
| 10 #include "bin/socket.h" | |
| 11 #include "bin/socket_android.h" | |
| 12 | |
| 13 #include <errno.h> // NOLINT | |
| 14 #include <netinet/tcp.h> // NOLINT | |
| 15 #include <stdio.h> // NOLINT | |
| 16 #include <stdlib.h> // NOLINT | |
| 17 #include <string.h> // NOLINT | |
| 18 #include <sys/stat.h> // NOLINT | |
| 19 #include <unistd.h> // NOLINT | |
| 20 | |
| 21 #include "bin/fdutils.h" | |
| 22 #include "bin/file.h" | |
| 23 #include "platform/signal_blocker.h" | |
| 24 | |
| 25 namespace dart { | |
| 26 namespace bin { | |
| 27 | |
| 28 SocketAddress::SocketAddress(struct sockaddr* sa) { | |
| 29 ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN); | |
| 30 if (!Socket::FormatNumericAddress(*reinterpret_cast<RawAddr*>(sa), as_string_, | |
| 31 INET6_ADDRSTRLEN)) { | |
| 32 as_string_[0] = 0; | |
| 33 } | |
| 34 socklen_t salen = GetAddrLength(*reinterpret_cast<RawAddr*>(sa)); | |
| 35 memmove(reinterpret_cast<void*>(&addr_), sa, salen); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 bool Socket::FormatNumericAddress(const RawAddr& addr, char* address, int len) { | |
| 40 socklen_t salen = SocketAddress::GetAddrLength(addr); | |
| 41 return (NO_RETRY_EXPECTED(getnameinfo(&addr.addr, salen, address, len, NULL, | |
| 42 0, NI_NUMERICHOST)) == 0); | |
| 43 } | |
| 44 | |
| 45 | |
| 46 bool Socket::Initialize() { | |
| 47 // Nothing to do on Android. | |
| 48 return true; | |
| 49 } | |
| 50 | |
| 51 | |
| 52 static intptr_t Create(const RawAddr& addr) { | |
| 53 intptr_t fd; | |
| 54 fd = NO_RETRY_EXPECTED(socket(addr.ss.ss_family, SOCK_STREAM, 0)); | |
| 55 if (fd < 0) { | |
| 56 return -1; | |
| 57 } | |
| 58 if (!FDUtils::SetCloseOnExec(fd)) { | |
| 59 FDUtils::SaveErrorAndClose(fd); | |
| 60 return -1; | |
| 61 } | |
| 62 return fd; | |
| 63 } | |
| 64 | |
| 65 | |
| 66 static intptr_t Connect(intptr_t fd, const RawAddr& addr) { | |
| 67 intptr_t result = TEMP_FAILURE_RETRY( | |
| 68 connect(fd, &addr.addr, SocketAddress::GetAddrLength(addr))); | |
| 69 if ((result == 0) || (errno == EINPROGRESS)) { | |
| 70 return fd; | |
| 71 } | |
| 72 FDUtils::SaveErrorAndClose(fd); | |
| 73 return -1; | |
| 74 } | |
| 75 | |
| 76 | |
| 77 intptr_t Socket::CreateConnect(const RawAddr& addr) { | |
| 78 intptr_t fd = Create(addr); | |
| 79 if (fd < 0) { | |
| 80 return fd; | |
| 81 } | |
| 82 | |
| 83 if (!FDUtils::SetNonBlocking(fd)) { | |
| 84 FDUtils::SaveErrorAndClose(fd); | |
| 85 return -1; | |
| 86 } | |
| 87 return Connect(fd, addr); | |
| 88 } | |
| 89 | |
| 90 | |
| 91 intptr_t Socket::CreateBindConnect(const RawAddr& addr, | |
| 92 const RawAddr& source_addr) { | |
| 93 intptr_t fd = Create(addr); | |
| 94 if (fd < 0) { | |
| 95 return fd; | |
| 96 } | |
| 97 | |
| 98 intptr_t result = TEMP_FAILURE_RETRY( | |
| 99 bind(fd, &source_addr.addr, SocketAddress::GetAddrLength(source_addr))); | |
| 100 if ((result != 0) && (errno != EINPROGRESS)) { | |
| 101 FDUtils::SaveErrorAndClose(fd); | |
| 102 return -1; | |
| 103 } | |
| 104 | |
| 105 return Connect(fd, addr); | |
| 106 } | |
| 107 | |
| 108 | |
| 109 bool Socket::IsBindError(intptr_t error_number) { | |
| 110 return error_number == EADDRINUSE || error_number == EADDRNOTAVAIL || | |
| 111 error_number == EINVAL; | |
| 112 } | |
| 113 | |
| 114 | |
| 115 intptr_t Socket::Available(intptr_t fd) { | |
| 116 return FDUtils::AvailableBytes(fd); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 intptr_t Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) { | |
| 121 ASSERT(fd >= 0); | |
| 122 ssize_t read_bytes = TEMP_FAILURE_RETRY(read(fd, buffer, num_bytes)); | |
| 123 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 124 if ((read_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 125 // If the read would block we need to retry and therefore return 0 | |
| 126 // as the number of bytes written. | |
| 127 read_bytes = 0; | |
| 128 } | |
| 129 return read_bytes; | |
| 130 } | |
| 131 | |
| 132 | |
| 133 intptr_t Socket::RecvFrom(intptr_t fd, | |
| 134 void* buffer, | |
| 135 intptr_t num_bytes, | |
| 136 RawAddr* addr) { | |
| 137 ASSERT(fd >= 0); | |
| 138 socklen_t addr_len = sizeof(addr->ss); | |
| 139 ssize_t read_bytes = TEMP_FAILURE_RETRY( | |
| 140 recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len)); | |
| 141 if ((read_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 142 // If the read would block we need to retry and therefore return 0 | |
| 143 // as the number of bytes written. | |
| 144 read_bytes = 0; | |
| 145 } | |
| 146 return read_bytes; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 intptr_t Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) { | |
| 151 ASSERT(fd >= 0); | |
| 152 ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes)); | |
| 153 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 154 if ((written_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 155 // If the would block we need to retry and therefore return 0 as | |
| 156 // the number of bytes written. | |
| 157 written_bytes = 0; | |
| 158 } | |
| 159 return written_bytes; | |
| 160 } | |
| 161 | |
| 162 | |
| 163 intptr_t Socket::SendTo(intptr_t fd, | |
| 164 const void* buffer, | |
| 165 intptr_t num_bytes, | |
| 166 const RawAddr& addr) { | |
| 167 ASSERT(fd >= 0); | |
| 168 ssize_t written_bytes = | |
| 169 TEMP_FAILURE_RETRY(sendto(fd, buffer, num_bytes, 0, &addr.addr, | |
| 170 SocketAddress::GetAddrLength(addr))); | |
| 171 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 172 if ((written_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 173 // If the would block we need to retry and therefore return 0 as | |
| 174 // the number of bytes written. | |
| 175 written_bytes = 0; | |
| 176 } | |
| 177 return written_bytes; | |
| 178 } | |
| 179 | |
| 180 | |
| 181 intptr_t Socket::GetPort(intptr_t fd) { | |
| 182 ASSERT(fd >= 0); | |
| 183 RawAddr raw; | |
| 184 socklen_t size = sizeof(raw); | |
| 185 if (NO_RETRY_EXPECTED(getsockname(fd, &raw.addr, &size))) { | |
| 186 return 0; | |
| 187 } | |
| 188 return SocketAddress::GetAddrPort(raw); | |
| 189 } | |
| 190 | |
| 191 | |
| 192 SocketAddress* Socket::GetRemotePeer(intptr_t fd, intptr_t* port) { | |
| 193 ASSERT(fd >= 0); | |
| 194 RawAddr raw; | |
| 195 socklen_t size = sizeof(raw); | |
| 196 if (NO_RETRY_EXPECTED(getpeername(fd, &raw.addr, &size))) { | |
| 197 return NULL; | |
| 198 } | |
| 199 *port = SocketAddress::GetAddrPort(raw); | |
| 200 return new SocketAddress(&raw.addr); | |
| 201 } | |
| 202 | |
| 203 | |
| 204 void Socket::GetError(intptr_t fd, OSError* os_error) { | |
| 205 int errorNumber; | |
| 206 socklen_t len = sizeof(errorNumber); | |
| 207 getsockopt(fd, SOL_SOCKET, SO_ERROR, reinterpret_cast<void*>(&errorNumber), | |
| 208 &len); | |
| 209 os_error->SetCodeAndMessage(OSError::kSystem, errorNumber); | |
| 210 } | |
| 211 | |
| 212 | |
| 213 int Socket::GetType(intptr_t fd) { | |
| 214 struct stat buf; | |
| 215 int result = fstat(fd, &buf); | |
| 216 if (result == -1) { | |
| 217 return -1; | |
| 218 } | |
| 219 if (S_ISCHR(buf.st_mode)) { | |
| 220 return File::kTerminal; | |
| 221 } | |
| 222 if (S_ISFIFO(buf.st_mode)) { | |
| 223 return File::kPipe; | |
| 224 } | |
| 225 if (S_ISREG(buf.st_mode)) { | |
| 226 return File::kFile; | |
| 227 } | |
| 228 return File::kOther; | |
| 229 } | |
| 230 | |
| 231 | |
| 232 intptr_t Socket::GetStdioHandle(intptr_t num) { | |
| 233 return num; | |
| 234 } | |
| 235 | |
| 236 | |
| 237 AddressList<SocketAddress>* Socket::LookupAddress(const char* host, | |
| 238 int type, | |
| 239 OSError** os_error) { | |
| 240 // Perform a name lookup for a host name. | |
| 241 struct addrinfo hints; | |
| 242 memset(&hints, 0, sizeof(hints)); | |
| 243 hints.ai_family = SocketAddress::FromType(type); | |
| 244 hints.ai_socktype = SOCK_STREAM; | |
| 245 hints.ai_flags = AI_ADDRCONFIG; | |
| 246 hints.ai_protocol = IPPROTO_TCP; | |
| 247 struct addrinfo* info = NULL; | |
| 248 int status = getaddrinfo(host, 0, &hints, &info); | |
| 249 if (status != 0) { | |
| 250 // We failed, try without AI_ADDRCONFIG. This can happen when looking up | |
| 251 // e.g. '::1', when there are no IPv6 addresses. | |
| 252 hints.ai_flags = 0; | |
| 253 status = getaddrinfo(host, 0, &hints, &info); | |
| 254 if (status != 0) { | |
| 255 ASSERT(*os_error == NULL); | |
| 256 *os_error = | |
| 257 new OSError(status, gai_strerror(status), OSError::kGetAddressInfo); | |
| 258 return NULL; | |
| 259 } | |
| 260 } | |
| 261 intptr_t count = 0; | |
| 262 for (struct addrinfo* c = info; c != NULL; c = c->ai_next) { | |
| 263 if ((c->ai_family == AF_INET) || (c->ai_family == AF_INET6)) { | |
| 264 count++; | |
| 265 } | |
| 266 } | |
| 267 intptr_t i = 0; | |
| 268 AddressList<SocketAddress>* addresses = new AddressList<SocketAddress>(count); | |
| 269 for (struct addrinfo* c = info; c != NULL; c = c->ai_next) { | |
| 270 if ((c->ai_family == AF_INET) || (c->ai_family == AF_INET6)) { | |
| 271 addresses->SetAt(i, new SocketAddress(c->ai_addr)); | |
| 272 i++; | |
| 273 } | |
| 274 } | |
| 275 freeaddrinfo(info); | |
| 276 return addresses; | |
| 277 } | |
| 278 | |
| 279 | |
| 280 bool Socket::ReverseLookup(const RawAddr& addr, | |
| 281 char* host, | |
| 282 intptr_t host_len, | |
| 283 OSError** os_error) { | |
| 284 ASSERT(host_len >= NI_MAXHOST); | |
| 285 int status = NO_RETRY_EXPECTED( | |
| 286 getnameinfo(&addr.addr, SocketAddress::GetAddrLength(addr), host, | |
| 287 host_len, NULL, 0, NI_NAMEREQD)); | |
| 288 if (status != 0) { | |
| 289 ASSERT(*os_error == NULL); | |
| 290 *os_error = | |
| 291 new OSError(status, gai_strerror(status), OSError::kGetAddressInfo); | |
| 292 return false; | |
| 293 } | |
| 294 return true; | |
| 295 } | |
| 296 | |
| 297 | |
| 298 bool Socket::ParseAddress(int type, const char* address, RawAddr* addr) { | |
| 299 int result; | |
| 300 if (type == SocketAddress::TYPE_IPV4) { | |
| 301 result = inet_pton(AF_INET, address, &addr->in.sin_addr); | |
| 302 } else { | |
| 303 ASSERT(type == SocketAddress::TYPE_IPV6); | |
| 304 result = inet_pton(AF_INET6, address, &addr->in6.sin6_addr); | |
| 305 } | |
| 306 return (result == 1); | |
| 307 } | |
| 308 | |
| 309 | |
| 310 intptr_t Socket::CreateBindDatagram(const RawAddr& addr, bool reuseAddress) { | |
| 311 intptr_t fd; | |
| 312 | |
| 313 fd = NO_RETRY_EXPECTED(socket(addr.addr.sa_family, SOCK_DGRAM, IPPROTO_UDP)); | |
| 314 if (fd < 0) { | |
| 315 return -1; | |
| 316 } | |
| 317 | |
| 318 if (!FDUtils::SetCloseOnExec(fd)) { | |
| 319 FDUtils::SaveErrorAndClose(fd); | |
| 320 return -1; | |
| 321 } | |
| 322 | |
| 323 if (reuseAddress) { | |
| 324 int optval = 1; | |
| 325 VOID_NO_RETRY_EXPECTED( | |
| 326 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))); | |
| 327 } | |
| 328 | |
| 329 if (NO_RETRY_EXPECTED( | |
| 330 bind(fd, &addr.addr, SocketAddress::GetAddrLength(addr))) < 0) { | |
| 331 FDUtils::SaveErrorAndClose(fd); | |
| 332 return -1; | |
| 333 } | |
| 334 | |
| 335 if (!FDUtils::SetNonBlocking(fd)) { | |
| 336 FDUtils::SaveErrorAndClose(fd); | |
| 337 return -1; | |
| 338 } | |
| 339 return fd; | |
| 340 } | |
| 341 | |
| 342 | |
| 343 bool Socket::ListInterfacesSupported() { | |
| 344 return false; | |
| 345 } | |
| 346 | |
| 347 | |
| 348 AddressList<InterfaceSocketAddress>* Socket::ListInterfaces( | |
| 349 int type, | |
| 350 OSError** os_error) { | |
| 351 // The ifaddrs.h header is not provided on Android. An Android | |
| 352 // implementation would have to use IOCTL or netlink. | |
| 353 ASSERT(*os_error == NULL); | |
| 354 *os_error = new OSError(-1, | |
| 355 "Listing interfaces is not supported " | |
| 356 "on this platform", | |
| 357 OSError::kSystem); | |
| 358 return NULL; | |
| 359 } | |
| 360 | |
| 361 | |
| 362 intptr_t ServerSocket::CreateBindListen(const RawAddr& addr, | |
| 363 intptr_t backlog, | |
| 364 bool v6_only) { | |
| 365 intptr_t fd; | |
| 366 | |
| 367 fd = NO_RETRY_EXPECTED(socket(addr.ss.ss_family, SOCK_STREAM, 0)); | |
| 368 if (fd < 0) { | |
| 369 return -1; | |
| 370 } | |
| 371 | |
| 372 if (!FDUtils::SetCloseOnExec(fd)) { | |
| 373 FDUtils::SaveErrorAndClose(fd); | |
| 374 return -1; | |
| 375 } | |
| 376 | |
| 377 int optval = 1; | |
| 378 VOID_NO_RETRY_EXPECTED( | |
| 379 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))); | |
| 380 | |
| 381 if (addr.ss.ss_family == AF_INET6) { | |
| 382 optval = v6_only ? 1 : 0; | |
| 383 VOID_NO_RETRY_EXPECTED( | |
| 384 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &optval, sizeof(optval))); | |
| 385 } | |
| 386 | |
| 387 if (NO_RETRY_EXPECTED( | |
| 388 bind(fd, &addr.addr, SocketAddress::GetAddrLength(addr))) < 0) { | |
| 389 FDUtils::SaveErrorAndClose(fd); | |
| 390 return -1; | |
| 391 } | |
| 392 | |
| 393 // Test for invalid socket port 65535 (some browsers disallow it). | |
| 394 if ((SocketAddress::GetAddrPort(addr)) == 0 && | |
| 395 (Socket::GetPort(fd) == 65535)) { | |
| 396 // Don't close the socket until we have created a new socket, ensuring | |
| 397 // that we do not get the bad port number again. | |
| 398 intptr_t new_fd = CreateBindListen(addr, backlog, v6_only); | |
| 399 FDUtils::SaveErrorAndClose(fd); | |
| 400 return new_fd; | |
| 401 } | |
| 402 | |
| 403 if (NO_RETRY_EXPECTED(listen(fd, backlog > 0 ? backlog : SOMAXCONN)) != 0) { | |
| 404 FDUtils::SaveErrorAndClose(fd); | |
| 405 return -1; | |
| 406 } | |
| 407 | |
| 408 if (!FDUtils::SetNonBlocking(fd)) { | |
| 409 FDUtils::SaveErrorAndClose(fd); | |
| 410 return -1; | |
| 411 } | |
| 412 return fd; | |
| 413 } | |
| 414 | |
| 415 | |
| 416 bool ServerSocket::StartAccept(intptr_t fd) { | |
| 417 USE(fd); | |
| 418 return true; | |
| 419 } | |
| 420 | |
| 421 | |
| 422 static bool IsTemporaryAcceptError(int error) { | |
| 423 // On Android a number of protocol errors should be treated as EAGAIN. | |
| 424 // These are the ones for TCP/IP. | |
| 425 return (error == EAGAIN) || (error == ENETDOWN) || (error == EPROTO) || | |
| 426 (error == ENOPROTOOPT) || (error == EHOSTDOWN) || (error == ENONET) || | |
| 427 (error == EHOSTUNREACH) || (error == EOPNOTSUPP) || | |
| 428 (error == ENETUNREACH); | |
| 429 } | |
| 430 | |
| 431 | |
| 432 intptr_t ServerSocket::Accept(intptr_t fd) { | |
| 433 intptr_t socket; | |
| 434 struct sockaddr clientaddr; | |
| 435 socklen_t addrlen = sizeof(clientaddr); | |
| 436 socket = TEMP_FAILURE_RETRY(accept(fd, &clientaddr, &addrlen)); | |
| 437 if (socket == -1) { | |
| 438 if (IsTemporaryAcceptError(errno)) { | |
| 439 // We need to signal to the caller that this is actually not an | |
| 440 // error. We got woken up from the poll on the listening socket, | |
| 441 // but there is no connection ready to be accepted. | |
| 442 ASSERT(kTemporaryFailure != -1); | |
| 443 socket = kTemporaryFailure; | |
| 444 } | |
| 445 } else { | |
| 446 if (!FDUtils::SetCloseOnExec(socket)) { | |
| 447 FDUtils::SaveErrorAndClose(socket); | |
| 448 return -1; | |
| 449 } | |
| 450 if (!FDUtils::SetNonBlocking(socket)) { | |
| 451 FDUtils::SaveErrorAndClose(socket); | |
| 452 return -1; | |
| 453 } | |
| 454 } | |
| 455 return socket; | |
| 456 } | |
| 457 | |
| 458 | |
| 459 void Socket::Close(intptr_t fd) { | |
| 460 ASSERT(fd >= 0); | |
| 461 VOID_TEMP_FAILURE_RETRY(close(fd)); | |
| 462 } | |
| 463 | |
| 464 | |
| 465 bool Socket::GetNoDelay(intptr_t fd, bool* enabled) { | |
| 466 int on; | |
| 467 socklen_t len = sizeof(on); | |
| 468 int err = NO_RETRY_EXPECTED(getsockopt(fd, IPPROTO_TCP, TCP_NODELAY, | |
| 469 reinterpret_cast<void*>(&on), &len)); | |
| 470 if (err == 0) { | |
| 471 *enabled = (on == 1); | |
| 472 } | |
| 473 return (err == 0); | |
| 474 } | |
| 475 | |
| 476 | |
| 477 bool Socket::SetNoDelay(intptr_t fd, bool enabled) { | |
| 478 int on = enabled ? 1 : 0; | |
| 479 return NO_RETRY_EXPECTED(setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, | |
| 480 reinterpret_cast<char*>(&on), | |
| 481 sizeof(on))) == 0; | |
| 482 } | |
| 483 | |
| 484 | |
| 485 bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) { | |
| 486 uint8_t on; | |
| 487 socklen_t len = sizeof(on); | |
| 488 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 489 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_LOOP | |
| 490 : IPV6_MULTICAST_LOOP; | |
| 491 if (NO_RETRY_EXPECTED(getsockopt(fd, level, optname, | |
| 492 reinterpret_cast<char*>(&on), &len)) == 0) { | |
| 493 *enabled = (on == 1); | |
| 494 return true; | |
| 495 } | |
| 496 return false; | |
| 497 } | |
| 498 | |
| 499 | |
| 500 bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) { | |
| 501 int on = enabled ? 1 : 0; | |
| 502 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 503 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_LOOP | |
| 504 : IPV6_MULTICAST_LOOP; | |
| 505 return NO_RETRY_EXPECTED(setsockopt( | |
| 506 fd, level, optname, reinterpret_cast<char*>(&on), sizeof(on))) == | |
| 507 0; | |
| 508 } | |
| 509 | |
| 510 bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) { | |
| 511 uint8_t v; | |
| 512 socklen_t len = sizeof(v); | |
| 513 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 514 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_TTL | |
| 515 : IPV6_MULTICAST_HOPS; | |
| 516 if (NO_RETRY_EXPECTED(getsockopt(fd, level, optname, | |
| 517 reinterpret_cast<char*>(&v), &len)) == 0) { | |
| 518 *value = v; | |
| 519 return true; | |
| 520 } | |
| 521 return false; | |
| 522 } | |
| 523 | |
| 524 | |
| 525 bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) { | |
| 526 int v = value; | |
| 527 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 528 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_TTL | |
| 529 : IPV6_MULTICAST_HOPS; | |
| 530 return NO_RETRY_EXPECTED(setsockopt( | |
| 531 fd, level, optname, reinterpret_cast<char*>(&v), sizeof(v))) == 0; | |
| 532 } | |
| 533 | |
| 534 | |
| 535 bool Socket::GetBroadcast(intptr_t fd, bool* enabled) { | |
| 536 int on; | |
| 537 socklen_t len = sizeof(on); | |
| 538 int err = NO_RETRY_EXPECTED(getsockopt(fd, SOL_SOCKET, SO_BROADCAST, | |
| 539 reinterpret_cast<char*>(&on), &len)); | |
| 540 if (err == 0) { | |
| 541 *enabled = (on == 1); | |
| 542 } | |
| 543 return (err == 0); | |
| 544 } | |
| 545 | |
| 546 | |
| 547 bool Socket::SetBroadcast(intptr_t fd, bool enabled) { | |
| 548 int on = enabled ? 1 : 0; | |
| 549 return NO_RETRY_EXPECTED(setsockopt(fd, SOL_SOCKET, SO_BROADCAST, | |
| 550 reinterpret_cast<char*>(&on), | |
| 551 sizeof(on))) == 0; | |
| 552 } | |
| 553 | |
| 554 | |
| 555 bool Socket::JoinMulticast(intptr_t fd, | |
| 556 const RawAddr& addr, | |
| 557 const RawAddr&, | |
| 558 int interfaceIndex) { | |
| 559 int proto = (addr.addr.sa_family == AF_INET) ? IPPROTO_IP : IPPROTO_IPV6; | |
| 560 struct group_req mreq; | |
| 561 mreq.gr_interface = interfaceIndex; | |
| 562 memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr)); | |
| 563 return NO_RETRY_EXPECTED( | |
| 564 setsockopt(fd, proto, MCAST_JOIN_GROUP, &mreq, sizeof(mreq))) == 0; | |
| 565 } | |
| 566 | |
| 567 | |
| 568 bool Socket::LeaveMulticast(intptr_t fd, | |
| 569 const RawAddr& addr, | |
| 570 const RawAddr&, | |
| 571 int interfaceIndex) { | |
| 572 int proto = (addr.addr.sa_family == AF_INET) ? IPPROTO_IP : IPPROTO_IPV6; | |
| 573 struct group_req mreq; | |
| 574 mreq.gr_interface = interfaceIndex; | |
| 575 memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr)); | |
| 576 return NO_RETRY_EXPECTED(setsockopt(fd, proto, MCAST_LEAVE_GROUP, &mreq, | |
| 577 sizeof(mreq))) == 0; | |
| 578 } | |
| 579 | |
| 580 } // namespace bin | |
| 581 } // namespace dart | |
| 582 | |
| 583 #endif // defined(TARGET_OS_ANDROID) | |
| 584 | |
| 585 #endif // !defined(DART_IO_DISABLED) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2780063002:
Pulled a significant portion of Socket implementation into BaseSocket in order to prepare for the s… (Closed)
