Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| 2 | // Copyright (C) 2009 Leandro Melo de Sales <leandroal@gmail.com> |
| 3 | // Copyright (C) 2006-2010 David Sugar, Tycho Softworks, |
| 4 | // |
| 5 | // This program is free software; you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU General Public License as published by |
| 7 | // the Free Software Foundation; either version 2 of the License, or |
| 8 | // (at your option) any later version. |
| 9 | // |
| 10 | // This program is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU General Public License |
| 16 | // along with this program; if not, write to the Free Software |
| 17 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | // |
| 19 | // As a special exception, you may use this file as part of a free software |
| 20 | // library without restriction. Specifically, if other files instantiate |
| 21 | // templates or use macros or inline functions from this file, or you compile |
| 22 | // this file and link it with other files to produce an executable, this |
| 23 | // file does not by itself cause the resulting executable to be covered by |
| 24 | // the GNU General Public License. This exception does not however |
| 25 | // invalidate any other reasons why the executable file might be covered by |
| 26 | // the GNU General Public License. |
| 27 | // |
| 28 | // This exception applies only to the code released under the name GNU |
| 29 | // Common C++. If you copy code from other releases into a copy of GNU |
| 30 | // Common C++, as the General Public License permits, the exception does |
| 31 | // not apply to the code that you add in this way. To avoid misleading |
| 32 | // anyone as to the status of such modified files, you must delete |
| 33 | // this exception notice from them. |
| 34 | // |
| 35 | // If you write modifications of your own for GNU Common C++, it is your choice |
| 36 | // whether to permit this exception to apply to your modifications. |
| 37 | // If you do not wish that, delete this exception notice. |
| 38 | // |
| 39 | |
| 40 | #include <cc++/config.h> |
| 41 | #include <cc++/export.h> |
| 42 | #include <cc++/exception.h> |
| 43 | #include <cc++/thread.h> |
| 44 | #include <cc++/address.h> |
| 45 | #include <cc++/socket.h> |
| 46 | #include "private.h" |
| 47 | #include "nat.h" |
| 48 | #include <fcntl.h> |
| 49 | #include <cerrno> |
| 50 | #include <cstdlib> |
| 51 | #include <cstdarg> |
| 52 | #include <cstdio> |
| 53 | |
| 54 | #ifndef WIN32 |
| 55 | #include <netinet/tcp.h> |
| 56 | #endif |
| 57 | |
| 58 | #ifdef WIN32 |
| 59 | #include <io.h> |
| 60 | #define socket_errno WSAGetLastError() |
| 61 | #endif |
| 62 | |
| 63 | #ifndef WIN32 |
| 64 | #include <sys/ioctl.h> |
| 65 | #ifdef HAVE_NET_IP6_H |
| 66 | #include <netinet/ip6.h> |
| 67 | #endif |
| 68 | |
| 69 | #if defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED) |
| 70 | #undef _XOPEN_SOURCE_EXTENDED |
| 71 | #endif |
| 72 | |
| 73 | #ifdef HAVE_NETINET_IN_H |
| 74 | #include <netinet/in.h> |
| 75 | #endif |
| 76 | |
| 77 | #if defined(__hpux) |
| 78 | #define _XOPEN_SOURCE_EXTENDED |
| 79 | #endif |
| 80 | |
| 81 | #ifdef HAVE_NET_IF_H |
| 82 | #include <net/if.h> |
| 83 | #endif |
| 84 | #endif |
| 85 | |
| 86 | #ifndef WIN32 |
| 87 | #define socket_errno errno |
| 88 | # ifndef O_NONBLOCK |
| 89 | # define O_NONBLOCK O_NDELAY |
| 90 | # endif |
| 91 | # ifdef IPPROTO_IP |
| 92 | # ifndef SOL_IP |
| 93 | # define SOL_IP IPPROTO_IP |
| 94 | # endif // !SOL_IP |
| 95 | # endif // IPPROTO_IP |
| 96 | #endif // !WIN32 |
| 97 | |
| 98 | #ifndef INADDR_LOOPBACK |
| 99 | #define INADDR_LOOPBACK (unsigned long)0x7f000001 |
| 100 | #endif |
| 101 | |
| 102 | #ifdef CCXX_NAMESPACES |
| 103 | namespace ost { |
| 104 | using namespace std; |
| 105 | #endif |
| 106 | |
| 107 | #if defined(WIN32) && !defined(__MINGW32__) |
| 108 | static SOCKET dupSocket(SOCKET so,enum Socket::State state) |
| 109 | { |
| 110 | if (state == Socket::STREAM) |
| 111 | return dup((int)so); |
| 112 | |
| 113 | HANDLE pidHandle = GetCurrentProcess(); |
| 114 | HANDLE dupHandle; |
| 115 | if(DuplicateHandle(pidHandle, reinterpret_cast<HANDLE>(so), pidHandle, &dupHandle, 0, FALSE, DUPLICATE_SAME_ACCESS)) |
| 116 | return reinterpret_cast<SOCKET>(dupHandle); |
| 117 | return INVALID_SOCKET; |
| 118 | } |
| 119 | # define DUP_SOCK(s,state) dupSocket(s,state) |
| 120 | #else |
| 121 | # define DUP_SOCK(s,state) dup(s) |
| 122 | #endif |
| 123 | |
| 124 | Mutex Socket::mutex; |
| 125 | |
| 126 | bool Socket::check(Family fam) |
| 127 | { |
| 128 | SOCKET so = INVALID_SOCKET; |
| 129 | |
| 130 | switch(fam) { |
| 131 | case IPV4: |
| 132 | so = socket(fam, SOCK_DGRAM, IPPROTO_UDP); |
| 133 | break; |
| 134 | #ifdef CCXX_IPV6 |
| 135 | case IPV6: |
| 136 | so = socket(fam, SOCK_DGRAM, IPPROTO_UDP); |
| 137 | break; |
| 138 | #endif |
| 139 | default: |
| 140 | return false; |
| 141 | } |
| 142 | |
| 143 | if(so == INVALID_SOCKET) |
| 144 | return false; |
| 145 | |
| 146 | #ifdef WIN32 |
| 147 | closesocket(so); |
| 148 | #else |
| 149 | close(so); |
| 150 | #endif |
| 151 | return true; |
| 152 | } |
| 153 | |
| 154 | Socket::Socket() |
| 155 | { |
| 156 | setSocket(); |
| 157 | } |
| 158 | |
| 159 | Socket::Socket(int domain, int type, int protocol) |
| 160 | { |
| 161 | setSocket(); |
| 162 | so = socket(domain, type, protocol); |
| 163 | if(so == INVALID_SOCKET) { |
| 164 | error(errCreateFailed,(char *)"Could not create socket",socket_errno); |
| 165 | return; |
| 166 | } |
| 167 | #ifdef SO_NOSIGPIPE |
| 168 | int opt = 1; |
| 169 | setsockopt(so, SOL_SOCKET, SO_NOSIGPIPE, (char *)&opt, sizeof(opt)); |
| 170 | #endif |
| 171 | state = AVAILABLE; |
| 172 | } |
| 173 | |
| 174 | Socket::Socket(SOCKET fd) |
| 175 | { |
| 176 | setSocket(); |
| 177 | if (fd == INVALID_SOCKET) { |
| 178 | error(errCreateFailed,(char *)"Invalid socket handle passed",0); |
| 179 | return; |
| 180 | } |
| 181 | so = fd; |
| 182 | state = AVAILABLE; |
| 183 | } |
| 184 | |
| 185 | Socket::Socket(const Socket &orig) |
| 186 | { |
| 187 | setSocket(); |
| 188 | so = DUP_SOCK(orig.so,orig.state); |
| 189 | if(so == INVALID_SOCKET) |
| 190 | error(errCopyFailed,(char *)"Could not duplicate socket handle",socket_errno); |
| 191 | state = orig.state; |
| 192 | } |
| 193 | |
| 194 | Socket::~Socket() |
| 195 | { |
| 196 | endSocket(); |
| 197 | } |
| 198 | |
| 199 | void Socket::setSocket(void) |
| 200 | { |
| 201 | flags.thrown = false; |
| 202 | flags.broadcast = false; |
| 203 | flags.route = true; |
| 204 | flags.keepalive = false; |
| 205 | flags.loopback = true; |
| 206 | flags.multicast = false; |
| 207 | flags.linger = false; |
| 208 | flags.ttl = 1; |
| 209 | errid = errSuccess; |
| 210 | errstr = NULL; |
| 211 | syserr = 0; |
| 212 | state = INITIAL; |
| 213 | so = INVALID_SOCKET; |
| 214 | } |
| 215 | |
| 216 | Socket::Error Socket::sendLimit(int limit) |
| 217 | { |
| 218 | #ifdef SO_SNDLOWAT |
| 219 | if(setsockopt(so, SOL_SOCKET, SO_SNDLOWAT, (char *)&limit, sizeof(limit))) |
| 220 | return errInvalidValue; |
| 221 | |
| 222 | return errSuccess; |
| 223 | |
| 224 | #else |
| 225 | return errServiceUnavailable; |
| 226 | #endif |
| 227 | } |
| 228 | |
| 229 | Socket::Error Socket::receiveLimit(int limit) |
| 230 | { |
| 231 | #ifdef SO_RCVLOWAT |
| 232 | if(setsockopt(so, SOL_SOCKET, SO_RCVLOWAT, (char *)&limit, sizeof(limit))) |
| 233 | return errInvalidValue; |
| 234 | |
| 235 | return errSuccess; |
| 236 | |
| 237 | #else |
| 238 | return errServiceUnavailable; |
| 239 | #endif |
| 240 | } |
| 241 | |
| 242 | Socket::Error Socket::sendTimeout(timeout_t to) |
| 243 | { |
| 244 | #ifdef SO_SNDTIMEO |
| 245 | struct timeval tv; |
| 246 | |
| 247 | tv.tv_sec = to / 1000; |
| 248 | tv.tv_usec = (to % 1000) * 1000; |
| 249 | |
| 250 | if(setsockopt(so, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv))) |
| 251 | return errInvalidValue; |
| 252 | |
| 253 | return errSuccess; |
| 254 | |
| 255 | #else |
| 256 | return errServiceUnavailable; |
| 257 | #endif |
| 258 | } |
| 259 | |
| 260 | Socket::Error Socket::receiveTimeout(timeout_t to) |
| 261 | { |
| 262 | #ifdef SO_RCVTIMEO |
| 263 | struct timeval tv; |
| 264 | |
| 265 | tv.tv_sec = to / 1000; |
| 266 | tv.tv_usec = (to % 1000) * 1000; |
| 267 | |
| 268 | if(setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv))) |
| 269 | return errInvalidValue; |
| 270 | |
| 271 | return errSuccess; |
| 272 | #else |
| 273 | return errServiceUnavailable; |
| 274 | #endif |
| 275 | } |
| 276 | |
| 277 | Socket::Error Socket::sendBuffer(unsigned bufsize) |
| 278 | { |
| 279 | #ifdef SO_SNDBUF |
| 280 | if(setsockopt(so, SOL_SOCKET, SO_SNDBUF, (char *)&bufsize, sizeof(bufsize))) |
| 281 | return errInvalidValue; |
| 282 | return errSuccess; |
| 283 | #else |
| 284 | return errServiceUnavailable; |
| 285 | #endif |
| 286 | } |
| 287 | |
| 288 | Socket::Error Socket::bufferSize(unsigned bufsize) |
| 289 | { |
| 290 | Error err = receiveBuffer(bufsize); |
| 291 | if(err == errSuccess) |
| 292 | err = sendBuffer(bufsize); |
| 293 | |
| 294 | return err; |
| 295 | } |
| 296 | |
| 297 | Socket::Error Socket::receiveBuffer(unsigned bufsize) |
| 298 | { |
| 299 | #ifdef SO_RCVBUF |
| 300 | if(setsockopt(so, SOL_SOCKET, SO_RCVBUF, (char *)&bufsize, sizeof(bufsize))) |
| 301 | return errInvalidValue; |
| 302 | return errSuccess; |
| 303 | #else |
| 304 | return errServiceUnavailable; |
| 305 | #endif |
| 306 | } |
| 307 | |
| 308 | ssize_t Socket::readLine(char *str, size_t request, timeout_t timeout) |
| 309 | { |
| 310 | bool crlf = false; |
| 311 | bool nl = false; |
| 312 | size_t nleft = request - 1; // leave also space for terminator |
| 313 | int nstat,c; |
| 314 | |
| 315 | if(request < 1) |
| 316 | return 0; |
| 317 | |
| 318 | str[0] = 0; |
| 319 | |
| 320 | while(nleft && !nl) { |
| 321 | if(timeout) { |
| 322 | if(!isPending(pendingInput, timeout)) { |
| 323 | error(errTimeout,(char *)"Read timeout", 0); |
| 324 | return -1; |
| 325 | } |
| 326 | } |
| 327 | nstat = ::recv(so, str, _IOLEN64 nleft, MSG_PEEK); |
| 328 | if(nstat <= 0) { |
| 329 | error(errInput,(char *)"Could not read from socket", socket_errno); |
| 330 | return -1; |
| 331 | } |
| 332 | |
| 333 | // FIXME: if unique char in buffer is '\r' return "\r" |
| 334 | // if buffer end in \r try to read another char? |
| 335 | // and if timeout ?? |
| 336 | // remember last \r |
| 337 | |
| 338 | for(c=0; c < nstat; ++c) { |
| 339 | if(str[c] == '\n') { |
| 340 | if (c > 0 && str[c-1] == '\r') |
| 341 | crlf = true; |
| 342 | ++c; |
| 343 | nl = true; |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | nstat = ::recv(so, str, _IOLEN64 c, 0); |
| 348 | // TODO: correct ??? |
| 349 | if(nstat < 0) |
| 350 | break; |
| 351 | |
| 352 | // adjust ending \r\n in \n |
| 353 | if(crlf) { |
| 354 | --nstat; |
| 355 | str[nstat - 1] = '\n'; |
| 356 | } |
| 357 | |
| 358 | str += nstat; |
| 359 | nleft -= nstat; |
| 360 | } |
| 361 | *str = 0; |
| 362 | return (ssize_t)(request - nleft - 1); |
| 363 | } |
| 364 | |
| 365 | ssize_t Socket::readData(void *Target, size_t Size, char Separator, timeout_t timeout) |
| 366 | { |
| 367 | if ((Separator == 0x0D) || (Separator == 0x0A)) |
| 368 | return (readLine ((char *) Target, Size, timeout)); |
| 369 | |
| 370 | if (Size < 1) |
| 371 | return (0); |
| 372 | |
| 373 | ssize_t nstat; |
| 374 | |
| 375 | if (Separator == 0) { // Flat-out read for a number of bytes. |
| 376 | if (timeout) { |
| 377 | if (!isPending (pendingInput, timeout)) { |
| 378 | error(errTimeout); |
| 379 | return (-1); |
| 380 | } |
| 381 | } |
| 382 | nstat =::recv (so, (char *)Target, _IOLEN64 Size, 0); |
| 383 | |
| 384 | if (nstat < 0) { |
| 385 | error (errInput); |
| 386 | return (-1); |
| 387 | } |
| 388 | return (nstat); |
| 389 | } |
| 390 | ///////////////////////////////////////////////////////////// |
| 391 | // Otherwise, we have a special char separator to use |
| 392 | ///////////////////////////////////////////////////////////// |
| 393 | bool found = false; |
| 394 | size_t nleft = Size; |
| 395 | int c; |
| 396 | char *str = (char *) Target; |
| 397 | |
| 398 | memset (str, 0, Size); |
| 399 | |
| 400 | while (nleft && !found) { |
| 401 | if (timeout) { |
| 402 | if (!isPending (pendingInput, timeout)) { |
| 403 | error(errTimeout); |
| 404 | return (-1); |
| 405 | } |
| 406 | } |
| 407 | nstat =::recv (so, str, _IOLEN64 nleft, MSG_PEEK); |
| 408 | if (nstat <= 0) { |
| 409 | error (errInput); |
| 410 | return (-1); |
| 411 | } |
| 412 | |
| 413 | for (c = 0; (c < nstat) && !found; ++c) { |
| 414 | if (str[c] == Separator) |
| 415 | found = true; |
| 416 | } |
| 417 | |
| 418 | memset (str, 0, nleft); |
| 419 | nstat =::recv (so, str, c, 0); |
| 420 | if (nstat < 0) |
| 421 | break; |
| 422 | |
| 423 | str += nstat; |
| 424 | nleft -= nstat; |
| 425 | } |
| 426 | return (ssize_t)(Size - (ssize_t) nleft); |
| 427 | } |
| 428 | |
| 429 | ssize_t Socket::writeData(const void *Source, size_t Size, timeout_t timeout) |
| 430 | { |
| 431 | if (Size < 1) |
| 432 | return (0); |
| 433 | |
| 434 | ssize_t nstat; |
| 435 | const char *Slide = (const char *) Source; |
| 436 | |
| 437 | while (true) { |
| 438 | if (timeout) { |
| 439 | if (!isPending (pendingOutput, timeout)) { |
| 440 | error(errOutput); |
| 441 | return (-1); |
| 442 | } |
| 443 | } |
| 444 | nstat =::send (so, Slide, _IOLEN64 Size, MSG_NOSIGNAL); |
| 445 | |
| 446 | if (nstat <= 0) { |
| 447 | error(errOutput); |
| 448 | return (-1); |
| 449 | } |
| 450 | Size -= nstat; |
| 451 | Slide += nstat; |
| 452 | |
| 453 | |
| 454 | if (Size <= 0) |
| 455 | break; |
| 456 | } |
| 457 | return (nstat); |
| 458 | } |
| 459 | |
| 460 | bool Socket::isConnected(void) const |
| 461 | { |
| 462 | return (Socket::state == CONNECTED) ? true : false; |
| 463 | } |
| 464 | |
| 465 | bool Socket::isActive(void) const |
| 466 | { |
| 467 | return (state != INITIAL) ? true : false; |
| 468 | } |
| 469 | |
| 470 | bool Socket::operator!() const |
| 471 | { |
| 472 | return (Socket::state == INITIAL) ? true : false; |
| 473 | } |
| 474 | |
| 475 | void Socket::endSocket(void) |
| 476 | { |
| 477 | if(Socket::state == STREAM) { |
| 478 | state = INITIAL; |
| 479 | #ifdef WIN32 |
| 480 | if(so != (UINT)-1) { |
| 481 | SOCKET sosave = so; |
| 482 | so = INVALID_SOCKET; |
| 483 | closesocket((int)sosave); |
| 484 | } |
| 485 | #else |
| 486 | if(so > -1) { |
| 487 | SOCKET sosave = so; |
| 488 | so = INVALID_SOCKET; |
| 489 | close(sosave); |
| 490 | } |
| 491 | #endif |
| 492 | return; |
| 493 | } |
| 494 | |
| 495 | state = INITIAL; |
| 496 | if(so == INVALID_SOCKET) |
| 497 | return; |
| 498 | |
| 499 | #ifdef SO_LINGER |
| 500 | struct linger linger; |
| 501 | |
| 502 | if(flags.linger) { |
| 503 | linger.l_onoff = 1; |
| 504 | linger.l_linger = 60; |
| 505 | } |
| 506 | else |
| 507 | linger.l_onoff = linger.l_linger = 0; |
| 508 | setsockopt(so, SOL_SOCKET, SO_LINGER, (char *)&linger, |
| 509 | (socklen_t)sizeof(linger)); |
| 510 | #endif |
| 511 | // shutdown(so, 2); |
| 512 | #ifdef WIN32 |
| 513 | closesocket(so); |
| 514 | #else |
| 515 | close(so); |
| 516 | #endif |
| 517 | so = INVALID_SOCKET; |
| 518 | } |
| 519 | |
| 520 | #ifdef WIN32 |
| 521 | Socket::Error Socket::connectError(void) |
| 522 | { |
| 523 | char* str = "Could not connect to remote host"; |
| 524 | switch(WSAGetLastError()) { |
| 525 | case WSAENETDOWN: |
| 526 | return error(errResourceFailure,str,socket_errno); |
| 527 | case WSAEINPROGRESS: |
| 528 | return error(errConnectBusy,str,socket_errno); |
| 529 | case WSAEADDRNOTAVAIL: |
| 530 | return error(errConnectInvalid,str,socket_errno); |
| 531 | case WSAECONNREFUSED: |
| 532 | return error(errConnectRefused,str,socket_errno); |
| 533 | case WSAENETUNREACH: |
| 534 | return error(errConnectNoRoute,str,socket_errno); |
| 535 | default: |
| 536 | return error(errConnectFailed,str,socket_errno); |
| 537 | } |
| 538 | } |
| 539 | #else |
| 540 | Socket::Error Socket::connectError(void) |
| 541 | { |
| 542 | char* str = (char *)"Could not connect to remote host"; |
| 543 | switch(errno) { |
| 544 | #ifdef EHOSTUNREACH |
| 545 | case EHOSTUNREACH: |
| 546 | return error(errConnectNoRoute,str,socket_errno); |
| 547 | #endif |
| 548 | #ifdef ENETUNREACH |
| 549 | case ENETUNREACH: |
| 550 | return error(errConnectNoRoute,str,socket_errno); |
| 551 | #endif |
| 552 | case EINPROGRESS: |
| 553 | return error(errConnectBusy,str,socket_errno); |
| 554 | #ifdef EADDRNOTAVAIL |
| 555 | case EADDRNOTAVAIL: |
| 556 | return error(errConnectInvalid,str,socket_errno); |
| 557 | #endif |
| 558 | case ECONNREFUSED: |
| 559 | return error(errConnectRefused,str,socket_errno); |
| 560 | case ETIMEDOUT: |
| 561 | return error(errConnectTimeout,str,socket_errno); |
| 562 | default: |
| 563 | return error(errConnectFailed,str,socket_errno); |
| 564 | } |
| 565 | } |
| 566 | #endif |
| 567 | |
| 568 | Socket::Error Socket::error(Error err, const char *errs, long systemError) const |
| 569 | { |
| 570 | errid = err; |
| 571 | errstr = errs; |
| 572 | syserr = systemError; |
| 573 | if(!err) |
| 574 | return err; |
| 575 | |
| 576 | if(flags.thrown) |
| 577 | return err; |
| 578 | |
| 579 | // prevents recursive throws |
| 580 | |
| 581 | flags.thrown = true; |
| 582 | #ifdef CCXX_EXCEPTIONS |
| 583 | switch(Thread::getException()) { |
| 584 | case Thread::throwObject: |
| 585 | THROW((Socket *)this); |
| 586 | #ifdef COMMON_STD_EXCEPTION |
| 587 | case Thread::throwException: |
| 588 | { |
| 589 | if(!errs) |
| 590 | errs = (char *)""; |
| 591 | THROW(SockException(String(errs), err, systemError)); |
| 592 | } |
| 593 | #endif |
| 594 | case Thread::throwNothing: |
| 595 | break; |
| 596 | } |
| 597 | #endif |
| 598 | return err; |
| 599 | } |
| 600 | |
| 601 | const char *Socket::getSystemErrorString(void) const |
| 602 | { |
| 603 | #ifdef CCXX_EXCEPTIONS |
| 604 | SockException e(errstr, errid, syserr); |
| 605 | return e.getSystemErrorString(); |
| 606 | #else |
| 607 | return NULL; |
| 608 | #endif |
| 609 | } |
| 610 | |
| 611 | Socket::Error Socket::setBroadcast(bool enable) |
| 612 | { |
| 613 | int opt = (enable ? 1 : 0); |
| 614 | if(setsockopt(so, SOL_SOCKET, SO_BROADCAST, |
| 615 | (char *)&opt, (socklen_t)sizeof(opt))) |
| 616 | return error(errBroadcastDenied,(char *)"Could not set socket broadcast option",socket_errno); |
| 617 | flags.broadcast = enable; |
| 618 | return errSuccess; |
| 619 | } |
| 620 | |
| 621 | Socket::Error Socket::setKeepAlive(bool enable) |
| 622 | { |
| 623 | int opt = (enable ? ~0: 0); |
| 624 | #if (defined(SO_KEEPALIVE) || defined(WIN32)) |
| 625 | if(setsockopt(so, SOL_SOCKET, SO_KEEPALIVE, |
| 626 | (char *)&opt, (socklen_t)sizeof(opt))) |
| 627 | return error(errKeepaliveDenied,(char *)"Could not set socket keep-alive option",socket_errno); |
| 628 | #endif |
| 629 | flags.keepalive = enable; |
| 630 | return errSuccess; |
| 631 | } |
| 632 | |
| 633 | Socket::Error Socket::setLinger(bool linger) |
| 634 | { |
| 635 | #ifdef SO_LINGER |
| 636 | flags.linger = linger; |
| 637 | return errSuccess; |
| 638 | #else |
| 639 | return error(errServiceUnavailable,(char *)"Socket lingering not supported"); |
| 640 | #endif |
| 641 | } |
| 642 | |
| 643 | Socket::Error Socket::setRouting(bool enable) |
| 644 | { |
| 645 | int opt = (enable ? 1 : 0); |
| 646 | |
| 647 | #ifdef SO_DONTROUTE |
| 648 | if(setsockopt(so, SOL_SOCKET, SO_DONTROUTE, |
| 649 | (char *)&opt, (socklen_t)sizeof(opt))) |
| 650 | return error(errRoutingDenied,(char *)"Could not set dont-route socket option",socket_errno); |
| 651 | #endif |
| 652 | flags.route = enable; |
| 653 | return errSuccess; |
| 654 | } |
| 655 | |
| 656 | Socket::Error Socket::setNoDelay(bool enable) |
| 657 | { |
| 658 | int opt = (enable ? 1 : 0); |
| 659 | |
| 660 | if(setsockopt(so, IPPROTO_TCP, TCP_NODELAY, |
| 661 | (char *)&opt, (socklen_t)sizeof(opt))) |
| 662 | return error(errNoDelay,(char *)"Could not set tcp-nodelay socket option",socket_errno); |
| 663 | |
| 664 | |
| 665 | return errSuccess; |
| 666 | } |
| 667 | |
| 668 | Socket::Error Socket::setTypeOfService(Tos service) |
| 669 | { |
| 670 | #ifdef SOL_IP |
| 671 | unsigned char tos; |
| 672 | switch(service) { |
| 673 | #ifdef IPTOS_LOWDELAY |
| 674 | case tosLowDelay: |
| 675 | tos = IPTOS_LOWDELAY; |
| 676 | break; |
| 677 | #endif |
| 678 | #ifdef IPTOS_THROUGHPUT |
| 679 | case tosThroughput: |
| 680 | tos = IPTOS_THROUGHPUT; |
| 681 | break; |
| 682 | #endif |
| 683 | #ifdef IPTOS_RELIABILITY |
| 684 | case tosReliability: |
| 685 | tos = IPTOS_RELIABILITY; |
| 686 | break; |
| 687 | #endif |
| 688 | #ifdef IPTOS_MINCOST |
| 689 | case tosMinCost: |
| 690 | tos = IPTOS_MINCOST; |
| 691 | break; |
| 692 | #endif |
| 693 | default: |
| 694 | return error(errServiceUnavailable,(char *)"Unknown type-of-service"); |
| 695 | } |
| 696 | if(setsockopt(so, SOL_IP, IP_TOS,(char *)&tos, (socklen_t)sizeof(tos))) |
| 697 | return error(errServiceDenied,(char *)"Could not set type-of-service",socket_errno); |
| 698 | return errSuccess; |
| 699 | #else |
| 700 | return error(errServiceUnavailable,(char *)"Socket type-of-service not supported",socket_errno); |
| 701 | #endif |
| 702 | } |
| 703 | |
| 704 | Socket::Error Socket::setTimeToLiveByFamily(unsigned char ttl, Family fam) |
| 705 | { |
| 706 | if(!flags.multicast) |
| 707 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 708 | |
| 709 | switch(fam) { |
| 710 | #ifdef CCXX_IPV6 |
| 711 | case IPV6: |
| 712 | flags.ttl = ttl; |
| 713 | setsockopt(so, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, (char *)&ttl, sizeof(ttl)); |
| 714 | return errSuccess; |
| 715 | #endif |
| 716 | case IPV4: |
| 717 | #ifdef IP_MULTICAST_TTL |
| 718 | flags.ttl = ttl; |
| 719 | setsockopt(so, IPPROTO_IP, IP_MULTICAST_TTL, (char *)&ttl, sizeof(ttl)); |
| 720 | return errSuccess; |
| 721 | #endif |
| 722 | default: |
| 723 | return error(errServiceUnavailable, (char *)"Multicast not supported"); |
| 724 | } |
| 725 | } |
| 726 | |
| 727 | Socket::Error Socket::setLoopbackByFamily(bool enable, Family family) |
| 728 | { |
| 729 | unsigned char loop; |
| 730 | |
| 731 | if(!flags.multicast) |
| 732 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 733 | |
| 734 | if(enable) |
| 735 | loop = 1; |
| 736 | else |
| 737 | loop = 0; |
| 738 | flags.loopback = enable; |
| 739 | |
| 740 | switch(family) { |
| 741 | #ifdef CCXX_IPV6 |
| 742 | case IPV6: |
| 743 | setsockopt(so, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, (char *)&loop, sizeof(loop)); |
| 744 | return errSuccess; |
| 745 | #endif |
| 746 | case IPV4: |
| 747 | #ifdef IP_MULTICAST_LOOP |
| 748 | setsockopt(so, IPPROTO_IP, IP_MULTICAST_LOOP, (char *)&loop, sizeof(loop)); |
| 749 | return errSuccess; |
| 750 | #endif |
| 751 | default: |
| 752 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | bool Socket::isPending(Pending pending, timeout_t timeout) |
| 757 | { |
| 758 | int status; |
| 759 | #ifdef USE_POLL |
| 760 | struct pollfd pfd; |
| 761 | |
| 762 | pfd.fd = so; |
| 763 | pfd.revents = 0; |
| 764 | |
| 765 | if(so == INVALID_SOCKET) |
| 766 | return true; |
| 767 | |
| 768 | switch(pending) { |
| 769 | case pendingInput: |
| 770 | pfd.events = POLLIN; |
| 771 | break; |
| 772 | case pendingOutput: |
| 773 | pfd.events = POLLOUT; |
| 774 | break; |
| 775 | case pendingError: |
| 776 | pfd.events = POLLERR | POLLHUP; |
| 777 | break; |
| 778 | } |
| 779 | |
| 780 | status = 0; |
| 781 | while(status < 1) { |
| 782 | |
| 783 | if(timeout == TIMEOUT_INF) |
| 784 | status = poll(&pfd, 1, -1); |
| 785 | else |
| 786 | status = poll(&pfd, 1, timeout); |
| 787 | |
| 788 | if(status < 1) { |
| 789 | // don't stop polling because of a simple |
| 790 | // signal :) |
| 791 | if(status == -1 && errno == EINTR) |
| 792 | continue; |
| 793 | |
| 794 | return false; |
| 795 | } |
| 796 | } |
| 797 | |
| 798 | if(pfd.revents & pfd.events) |
| 799 | return true; |
| 800 | return false; |
| 801 | #else |
| 802 | struct timeval tv; |
| 803 | struct timeval *tvp = &tv; |
| 804 | fd_set grp; |
| 805 | |
| 806 | if(timeout == TIMEOUT_INF) |
| 807 | tvp = NULL; |
| 808 | else { |
| 809 | tv.tv_usec = (timeout % 1000) * 1000; |
| 810 | tv.tv_sec = timeout / 1000; |
| 811 | } |
| 812 | |
| 813 | FD_ZERO(&grp); |
| 814 | SOCKET sosave = so; |
| 815 | if(so == INVALID_SOCKET) |
| 816 | return true; |
| 817 | FD_SET(sosave, &grp); |
| 818 | #ifdef WIN32 |
| 819 | Thread::Cancel cancel = Thread::enterCancel(); |
| 820 | #endif |
| 821 | switch(pending) { |
| 822 | case pendingInput: |
| 823 | status = select((int)so + 1, &grp, NULL, NULL, tvp); |
| 824 | break; |
| 825 | case pendingOutput: |
| 826 | status = select((int)so + 1, NULL, &grp, NULL, tvp); |
| 827 | break; |
| 828 | case pendingError: |
| 829 | status = select((int)so + 1, NULL, NULL, &grp, tvp); |
| 830 | break; |
| 831 | } |
| 832 | #ifdef WIN32 |
| 833 | Thread::exitCancel(cancel); |
| 834 | #endif |
| 835 | if(status < 1) |
| 836 | return false; |
| 837 | if(FD_ISSET(so, &grp)) |
| 838 | return true; |
| 839 | return false; |
| 840 | #endif |
| 841 | } |
| 842 | |
| 843 | Socket &Socket::operator=(const Socket &from) |
| 844 | { |
| 845 | if(so == from.so) |
| 846 | return *this; |
| 847 | |
| 848 | if(state != INITIAL) |
| 849 | endSocket(); |
| 850 | |
| 851 | so = DUP_SOCK(from.so,from.state); |
| 852 | if(so == INVALID_SOCKET) { |
| 853 | error(errCopyFailed,(char *)"Could not duplicate socket handle",socket_errno); |
| 854 | state = INITIAL; |
| 855 | } |
| 856 | else |
| 857 | state = from.state; |
| 858 | |
| 859 | return *this; |
| 860 | } |
| 861 | |
| 862 | void Socket::setCompletion(bool immediate) |
| 863 | { |
| 864 | flags.completion = immediate; |
| 865 | #ifdef WIN32 |
| 866 | unsigned long flag; |
| 867 | // note that this will not work on some versions of Windows for Workgroups. Tough. -- jfc |
| 868 | switch( immediate ) { |
| 869 | case false: |
| 870 | // this will not work if you are using WSAAsyncSelect or WSAEventSelect. |
| 871 | // -- perhaps I should throw an exception |
| 872 | flag = 1; |
| 873 | // ioctlsocket( so, FIONBIO, (unsigned long *) 1); |
| 874 | break; |
| 875 | case true: |
| 876 | flag = 0; |
| 877 | // ioctlsocket( so, FIONBIO, (unsigned long *) 0); |
| 878 | break; |
| 879 | } |
| 880 | ioctlsocket(so, FIONBIO, &flag); |
| 881 | #else |
| 882 | int fflags = fcntl(so, F_GETFL); |
| 883 | |
| 884 | switch( immediate ) { |
| 885 | case false: |
| 886 | fflags |= O_NONBLOCK; |
| 887 | fcntl(so, F_SETFL, fflags); |
| 888 | break; |
| 889 | case true: |
| 890 | fflags &=~ O_NONBLOCK; |
| 891 | fcntl(so, F_SETFL, fflags); |
| 892 | break; |
| 893 | } |
| 894 | #endif |
| 895 | } |
| 896 | |
| 897 | IPV4Host Socket::getIPV4Sender(tpport_t *port) const |
| 898 | { |
| 899 | struct sockaddr_in from; |
| 900 | char buf; |
| 901 | socklen_t len = sizeof(from); |
| 902 | int rc = ::recvfrom(so, &buf, 1, MSG_PEEK, |
| 903 | (struct sockaddr *)&from, &len); |
| 904 | |
| 905 | #ifdef WIN32 |
| 906 | if(rc < 1 && WSAGetLastError() != WSAEMSGSIZE) { |
| 907 | if(port) |
| 908 | *port = 0; |
| 909 | |
| 910 | memset((void*) &from, 0, sizeof(from)); |
| 911 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 912 | } |
| 913 | #else |
| 914 | if(rc < 0) { |
| 915 | if(port) |
| 916 | *port = 0; |
| 917 | |
| 918 | memset((void*) &from, 0, sizeof(from)); |
| 919 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 920 | } |
| 921 | #endif |
| 922 | else { |
| 923 | if(rc < 1) |
| 924 | memset((void*) &from, 0, sizeof(from)); |
| 925 | |
| 926 | if(port) |
| 927 | *port = ntohs(from.sin_port); |
| 928 | } |
| 929 | |
| 930 | return IPV4Host(from.sin_addr); |
| 931 | } |
| 932 | |
| 933 | #ifdef CCXX_IPV6 |
| 934 | IPV6Host Socket::getIPV6Sender(tpport_t *port) const |
| 935 | { |
| 936 | struct sockaddr_in6 from; |
| 937 | char buf; |
| 938 | socklen_t len = sizeof(from); |
| 939 | int rc = ::recvfrom(so, &buf, 1, MSG_PEEK, |
| 940 | (struct sockaddr *)&from, &len); |
| 941 | |
| 942 | #ifdef WIN32 |
| 943 | if(rc < 1 && WSAGetLastError() != WSAEMSGSIZE) { |
| 944 | if(port) |
| 945 | *port = 0; |
| 946 | |
| 947 | memset((void*) &from, 0, sizeof(from)); |
| 948 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 949 | } |
| 950 | #else |
| 951 | if(rc < 0) { |
| 952 | if(port) |
| 953 | *port = 0; |
| 954 | |
| 955 | memset((void*) &from, 0, sizeof(from)); |
| 956 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 957 | } |
| 958 | #endif |
| 959 | else { |
| 960 | if(rc < 1) |
| 961 | memset((void*) &from, 0, sizeof(from)); |
| 962 | |
| 963 | if(port) |
| 964 | *port = ntohs(from.sin6_port); |
| 965 | } |
| 966 | |
| 967 | return IPV6Host(from.sin6_addr); |
| 968 | } |
| 969 | #endif |
| 970 | |
| 971 | IPV4Host Socket::getIPV4Local(tpport_t *port) const |
| 972 | { |
| 973 | struct sockaddr_in addr; |
| 974 | socklen_t len = sizeof(addr); |
| 975 | |
| 976 | if(getsockname(so, (struct sockaddr *)&addr, &len)) { |
| 977 | error(errResourceFailure,(char *)"Could not get socket address",socket_errno); |
| 978 | if(port) |
| 979 | *port = 0; |
| 980 | memset(&addr.sin_addr, 0, sizeof(addr.sin_addr)); |
| 981 | } |
| 982 | else { |
| 983 | if(port) |
| 984 | *port = ntohs(addr.sin_port); |
| 985 | } |
| 986 | return IPV4Host(addr.sin_addr); |
| 987 | } |
| 988 | |
| 989 | #ifdef CCXX_IPV6 |
| 990 | IPV6Host Socket::getIPV6Local(tpport_t *port) const |
| 991 | { |
| 992 | struct sockaddr_in6 addr; |
| 993 | socklen_t len = sizeof(addr); |
| 994 | |
| 995 | if(getsockname(so, (struct sockaddr *)&addr, &len)) { |
| 996 | error(errResourceFailure,(char *)"Could not get socket address",socket_errno); |
| 997 | if(port) |
| 998 | *port = 0; |
| 999 | memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr)); |
| 1000 | } |
| 1001 | else { |
| 1002 | if(port) |
| 1003 | *port = ntohs(addr.sin6_port); |
| 1004 | } |
| 1005 | return IPV6Host(addr.sin6_addr); |
| 1006 | } |
| 1007 | |
| 1008 | #endif |
| 1009 | |
| 1010 | IPV4Host Socket::getIPV4NAT(tpport_t *port) const |
| 1011 | { |
| 1012 | struct sockaddr_in addr; |
| 1013 | natResult res; |
| 1014 | |
| 1015 | if((res=natv4Lookup((int)so, &addr))!=natOK) { |
| 1016 | if(res==natNotSupported) |
| 1017 | error( errServiceUnavailable, natErrorString( res ) ); |
| 1018 | else if(res==natSearchErr) |
| 1019 | error( errSearchErr, natErrorString( res ) ); |
| 1020 | else |
| 1021 | error( errLookupFail, natErrorString( res ), socket_errno ); |
| 1022 | if(port) |
| 1023 | *port = 0; |
| 1024 | memset(&addr.sin_addr, 0, sizeof(addr.sin_addr)); |
| 1025 | } |
| 1026 | else { |
| 1027 | if(port) |
| 1028 | *port = ntohs(addr.sin_port); |
| 1029 | } |
| 1030 | return IPV4Host(addr.sin_addr); |
| 1031 | } |
| 1032 | |
| 1033 | #ifdef CCXX_IPV6 |
| 1034 | IPV6Host Socket::getIPV6NAT(tpport_t *port) const |
| 1035 | { |
| 1036 | struct sockaddr_in6 addr; |
| 1037 | natResult res; |
| 1038 | |
| 1039 | if((res=natv6Lookup(so, &addr))!=natOK) { |
| 1040 | if(res==natNotSupported) |
| 1041 | error( errServiceUnavailable, natErrorString( res ) ); |
| 1042 | else if(res==natSearchErr) |
| 1043 | error( errSearchErr, natErrorString( res ) ); |
| 1044 | else |
| 1045 | error( errLookupFail, natErrorString( res ), socket_errno ); |
| 1046 | if(port) |
| 1047 | *port = 0; |
| 1048 | memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr)); |
| 1049 | } |
| 1050 | else { |
| 1051 | if(port) |
| 1052 | *port = ntohs(addr.sin6_port); |
| 1053 | } |
| 1054 | return IPV6Host(addr.sin6_addr); |
| 1055 | } |
| 1056 | #endif |
| 1057 | |
| 1058 | IPV4Host Socket::getIPV4Peer(tpport_t *port) const |
| 1059 | { |
| 1060 | struct sockaddr_in addr; |
| 1061 | socklen_t len = sizeof(addr); |
| 1062 | |
| 1063 | if(getpeername(so, (struct sockaddr *)&addr, &len)) { |
| 1064 | #ifndef WIN32 |
| 1065 | if(errno == ENOTCONN) |
| 1066 | error(errNotConnected,(char *)"Could not get peer address",socket_errno); |
| 1067 | else |
| 1068 | #endif |
| 1069 | error(errResourceFailure,(char *)"Could not get peer address",socket_errno); |
| 1070 | if(port) |
| 1071 | *port = 0; |
| 1072 | memset(&addr.sin_addr, 0, sizeof(addr.sin_addr)); |
| 1073 | } |
| 1074 | else { |
| 1075 | if(port) |
| 1076 | *port = ntohs(addr.sin_port); |
| 1077 | } |
| 1078 | return IPV4Host(addr.sin_addr); |
| 1079 | } |
| 1080 | |
| 1081 | #ifdef CCXX_IPV6 |
| 1082 | IPV6Host Socket::getIPV6Peer(tpport_t *port) const |
| 1083 | { |
| 1084 | struct sockaddr_in6 addr; |
| 1085 | socklen_t len = sizeof(addr); |
| 1086 | |
| 1087 | if(getpeername(so, (struct sockaddr *)&addr, &len)) { |
| 1088 | #ifndef WIN32 |
| 1089 | if(errno == ENOTCONN) |
| 1090 | error(errNotConnected,(char *)"Could not get peer address",socket_errno); |
| 1091 | else |
| 1092 | #endif |
| 1093 | error(errResourceFailure,(char *)"Could not get peer address",socket_errno); |
| 1094 | if(port) |
| 1095 | *port = 0; |
| 1096 | memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr)); |
| 1097 | } |
| 1098 | else { |
| 1099 | if(port) |
| 1100 | *port = ntohs(addr.sin6_port); |
| 1101 | } |
| 1102 | return IPV6Host(addr.sin6_addr); |
| 1103 | } |
| 1104 | #endif |
| 1105 | |
| 1106 | Socket::Error Socket::setMulticastByFamily(bool enable, Family family) |
| 1107 | { |
| 1108 | socklen_t len; |
| 1109 | |
| 1110 | switch(family) { |
| 1111 | #ifdef CCXX_IPV6 |
| 1112 | case IPV6: |
| 1113 | struct sockaddr_in6 addr; |
| 1114 | len = sizeof(addr); |
| 1115 | |
| 1116 | if(enable == flags.multicast) |
| 1117 | return errSuccess; |
| 1118 | |
| 1119 | flags.multicast = enable; |
| 1120 | if(enable) |
| 1121 | getsockname(so, (struct sockaddr *)&addr, &len); |
| 1122 | else |
| 1123 | memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr)); |
| 1124 | |
| 1125 | setsockopt(so, IPPROTO_IPV6, IPV6_MULTICAST_IF, (char *)&addr.sin6_addr, sizeof(addr.sin6_addr)); |
| 1126 | return errSuccess; |
| 1127 | #endif |
| 1128 | case IPV4: |
| 1129 | #ifdef IP_MULTICAST_IF |
| 1130 | struct sockaddr_in addr4; |
| 1131 | len = sizeof(addr4); |
| 1132 | |
| 1133 | if(enable == flags.multicast) |
| 1134 | return errSuccess; |
| 1135 | |
| 1136 | flags.multicast = enable; |
| 1137 | if(enable) |
| 1138 | getsockname(so, (struct sockaddr *)&addr4, &len); |
| 1139 | else |
| 1140 | memset(&addr4.sin_addr, 0, sizeof(addr4.sin_addr)); |
| 1141 | |
| 1142 | setsockopt(so, IPPROTO_IP, IP_MULTICAST_IF, (char *)&addr4.sin_addr, sizeof(addr4.sin_addr)); |
| 1143 | return errSuccess; |
| 1144 | #endif |
| 1145 | default: |
| 1146 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 1147 | } |
| 1148 | } |
| 1149 | |
| 1150 | Socket::Error Socket::join(const IPV4Multicast &ia) |
| 1151 | { |
| 1152 | #ifdef IP_ADD_MEMBERSHIP |
| 1153 | struct ip_mreq group; |
| 1154 | struct sockaddr_in myaddr; |
| 1155 | socklen_t len = sizeof(myaddr); |
| 1156 | |
| 1157 | if(!flags.multicast) |
| 1158 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 1159 | |
| 1160 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1161 | group.imr_interface.s_addr = INADDR_ANY; |
| 1162 | group.imr_multiaddr = getaddress(ia); |
| 1163 | setsockopt(so, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1164 | return errSuccess; |
| 1165 | #else |
| 1166 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 1167 | #endif |
| 1168 | } |
| 1169 | |
| 1170 | #ifdef CCXX_IPV6 |
| 1171 | Socket::Error Socket::join(const IPV6Multicast &ia) |
| 1172 | { |
| 1173 | #ifdef IPV6_ADD_MEMBERSHIP |
| 1174 | struct ipv6_mreq group; |
| 1175 | struct sockaddr_in6 myaddr; |
| 1176 | socklen_t len = sizeof(myaddr); |
| 1177 | |
| 1178 | if(!flags.multicast) |
| 1179 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 1180 | |
| 1181 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1182 | group.ipv6mr_interface = 0; |
| 1183 | group.ipv6mr_multiaddr = getaddress(ia); |
| 1184 | setsockopt(so, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1185 | return errSuccess; |
| 1186 | #else |
| 1187 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 1188 | #endif |
| 1189 | } |
| 1190 | |
| 1191 | #endif |
| 1192 | |
| 1193 | Socket::Error Socket::drop(const IPV4Multicast &ia) |
| 1194 | { |
| 1195 | #ifdef IP_DROP_MEMBERSHIP |
| 1196 | struct ip_mreq group; |
| 1197 | struct sockaddr_in myaddr; |
| 1198 | socklen_t len = sizeof(myaddr); |
| 1199 | |
| 1200 | if(!flags.multicast) |
| 1201 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 1202 | |
| 1203 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1204 | group.imr_interface.s_addr = INADDR_ANY; |
| 1205 | group.imr_multiaddr = getaddress(ia); |
| 1206 | setsockopt(so, IPPROTO_IP, IP_DROP_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1207 | return errSuccess; |
| 1208 | #else |
| 1209 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 1210 | #endif |
| 1211 | } |
| 1212 | |
| 1213 | #ifdef CCXX_IPV6 |
| 1214 | Socket::Error Socket::drop(const IPV6Multicast &ia) |
| 1215 | { |
| 1216 | #ifdef IPV6_DROP_MEMBERSHIP |
| 1217 | struct ipv6_mreq group; |
| 1218 | struct sockaddr_in6 myaddr; |
| 1219 | socklen_t len = sizeof(myaddr); |
| 1220 | |
| 1221 | if(!flags.multicast) |
| 1222 | return error(errMulticastDisabled,(char *)"Multicast not enabled on socket"); |
| 1223 | |
| 1224 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1225 | group.ipv6mr_interface = 0; |
| 1226 | group.ipv6mr_multiaddr = getaddress(ia); |
| 1227 | setsockopt(so, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1228 | return errSuccess; |
| 1229 | #else |
| 1230 | return error(errServiceUnavailable,(char *)"Multicast not supported"); |
| 1231 | #endif |
| 1232 | } |
| 1233 | #endif |
| 1234 | |
| 1235 | #ifdef HAVE_GETADDRINFO |
| 1236 | |
| 1237 | UDPSocket::UDPSocket(const char *name, Family fam) : |
| 1238 | Socket(fam, SOCK_DGRAM, IPPROTO_UDP) |
| 1239 | { |
| 1240 | char namebuf[128], *cp; |
| 1241 | struct addrinfo hint, *list = NULL, *first; |
| 1242 | |
| 1243 | family = fam; |
| 1244 | |
| 1245 | switch(fam) { |
| 1246 | #ifdef CCXX_IPV6 |
| 1247 | case IPV6: |
| 1248 | peer.ipv6.sin6_family = family; |
| 1249 | break; |
| 1250 | #endif |
| 1251 | case IPV4: |
| 1252 | peer.ipv4.sin_family = family; |
| 1253 | } |
| 1254 | |
| 1255 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1256 | cp = strrchr(namebuf, '/'); |
| 1257 | if(!cp && family == IPV4) |
| 1258 | cp = strrchr(namebuf, ':'); |
| 1259 | |
| 1260 | if(!cp) { |
| 1261 | cp = namebuf; |
| 1262 | name = NULL; |
| 1263 | } |
| 1264 | else { |
| 1265 | name = namebuf; |
| 1266 | *(cp++) = 0; |
| 1267 | if(!strcmp(name, "*")) |
| 1268 | name = NULL; |
| 1269 | } |
| 1270 | |
| 1271 | memset(&hint, 0, sizeof(hint)); |
| 1272 | |
| 1273 | hint.ai_family = family; |
| 1274 | hint.ai_socktype = SOCK_DGRAM; |
| 1275 | hint.ai_protocol = IPPROTO_UDP; |
| 1276 | hint.ai_flags = AI_PASSIVE; |
| 1277 | |
| 1278 | if(getaddrinfo(name, cp, &hint, &list) || !list) { |
| 1279 | error(errBindingFailed, (char *)"Could not find service", errno); |
| 1280 | endSocket(); |
| 1281 | return; |
| 1282 | } |
| 1283 | |
| 1284 | #if defined(SO_REUSEADDR) |
| 1285 | int opt = 1; |
| 1286 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 1287 | (socklen_t)sizeof(opt)); |
| 1288 | #endif |
| 1289 | |
| 1290 | first = list; |
| 1291 | |
| 1292 | while(list) { |
| 1293 | if(!bind(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 1294 | state = BOUND; |
| 1295 | break; |
| 1296 | } |
| 1297 | list = list->ai_next; |
| 1298 | } |
| 1299 | freeaddrinfo(first); |
| 1300 | |
| 1301 | if(state != BOUND) { |
| 1302 | endSocket(); |
| 1303 | error(errBindingFailed, (char *)"Count not bind socket", errno); |
| 1304 | return; |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | #else |
| 1309 | |
| 1310 | UDPSocket::UDPSocket(const char *name, Family fam) : |
| 1311 | Socket(fam, SOCK_DGRAM, IPPROTO_UDP) |
| 1312 | { |
| 1313 | char namebuf[128], *cp; |
| 1314 | tpport_t port; |
| 1315 | struct servent *svc; |
| 1316 | socklen_t alen; |
| 1317 | struct sockaddr *addr; |
| 1318 | |
| 1319 | family = fam; |
| 1320 | |
| 1321 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1322 | cp = strrchr(namebuf, '/'); |
| 1323 | if(!cp && family == IPV4) |
| 1324 | cp = strrchr(namebuf, ':'); |
| 1325 | |
| 1326 | if(!cp) { |
| 1327 | cp = namebuf; |
| 1328 | name = "*"; |
| 1329 | } |
| 1330 | else { |
| 1331 | name = namebuf; |
| 1332 | *(cp++) = 0; |
| 1333 | } |
| 1334 | |
| 1335 | if(isdigit(*cp)) |
| 1336 | port = atoi(cp); |
| 1337 | else { |
| 1338 | mutex.enter(); |
| 1339 | svc = getservbyname(cp, "udp"); |
| 1340 | if(svc) |
| 1341 | port = ntohs(svc->s_port); |
| 1342 | mutex.leave(); |
| 1343 | if(!svc) { |
| 1344 | error(errBindingFailed, (char *)"Could not find service", errno); |
| 1345 | endSocket(); |
| 1346 | return; |
| 1347 | } |
| 1348 | } |
| 1349 | |
| 1350 | struct sockaddr_in addr4; |
| 1351 | IPV4Address ia4(name); |
| 1352 | #ifdef CCXX_IPV6 |
| 1353 | struct sockaddr_in6 addr6; |
| 1354 | IPV6Address ia6(name); |
| 1355 | #endif |
| 1356 | |
| 1357 | switch(family) { |
| 1358 | #ifdef CCXX_IPV6 |
| 1359 | case IPV6: |
| 1360 | peer.ipv6.sin6_family = family; |
| 1361 | memset(&addr6, 0, sizeof(addr6)); |
| 1362 | addr6.sin6_family = family; |
| 1363 | addr6.sin6_addr = getaddress(ia6); |
| 1364 | addr6.sin6_port = htons(port); |
| 1365 | alen = sizeof(addr6); |
| 1366 | addr = (struct sockaddr *)&addr6; |
| 1367 | break; |
| 1368 | #endif |
| 1369 | case IPV4: |
| 1370 | peer.ipv4.sin_family = family; |
| 1371 | memset(&addr4, 0, sizeof(addr4)); |
| 1372 | addr4.sin_family = family; |
| 1373 | addr4.sin_addr = getaddress(ia4); |
| 1374 | addr4.sin_port = htons(port); |
| 1375 | alen = sizeof(&addr4); |
| 1376 | addr = (struct sockaddr *)&addr4; |
| 1377 | } |
| 1378 | |
| 1379 | #if defined(SO_REUSEADDR) |
| 1380 | int opt = 1; |
| 1381 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 1382 | (socklen_t)sizeof(opt)); |
| 1383 | #endif |
| 1384 | |
| 1385 | if(!bind(so, addr, alen)) |
| 1386 | state = BOUND; |
| 1387 | |
| 1388 | if(state != BOUND) { |
| 1389 | endSocket(); |
| 1390 | error(errBindingFailed, (char *)"Count not bind socket", errno); |
| 1391 | return; |
| 1392 | } |
| 1393 | } |
| 1394 | |
| 1395 | #endif |
| 1396 | |
| 1397 | UDPSocket::UDPSocket(Family fam) : |
| 1398 | Socket(fam, SOCK_DGRAM, IPPROTO_UDP) |
| 1399 | { |
| 1400 | family = fam; |
| 1401 | memset(&peer, 0, sizeof(peer)); |
| 1402 | switch(fam) { |
| 1403 | #ifdef CCXX_IPV6 |
| 1404 | case IPV6: |
| 1405 | peer.ipv6.sin6_family = family; |
| 1406 | break; |
| 1407 | #endif |
| 1408 | case IPV4: |
| 1409 | peer.ipv4.sin_family = family; |
| 1410 | } |
| 1411 | } |
| 1412 | |
| 1413 | UDPSocket::UDPSocket(const IPV4Address &ia, tpport_t port) : |
| 1414 | Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) |
| 1415 | { |
| 1416 | family = IPV4; |
| 1417 | memset(&peer.ipv4, 0, sizeof(peer)); |
| 1418 | peer.ipv4.sin_family = AF_INET; |
| 1419 | peer.ipv4.sin_addr = getaddress(ia); |
| 1420 | peer.ipv4.sin_port = htons(port); |
| 1421 | #if defined(SO_REUSEADDR) |
| 1422 | int opt = 1; |
| 1423 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 1424 | #endif |
| 1425 | if(bind(so, (struct sockaddr *)&peer.ipv4, sizeof(peer.ipv4))) { |
| 1426 | endSocket(); |
| 1427 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 1428 | return; |
| 1429 | } |
| 1430 | state = BOUND; |
| 1431 | } |
| 1432 | |
| 1433 | #ifdef CCXX_IPV6 |
| 1434 | UDPSocket::UDPSocket(const IPV6Address &ia, tpport_t port) : |
| 1435 | Socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP) |
| 1436 | { |
| 1437 | family = IPV6; |
| 1438 | memset(&peer.ipv6, 0, sizeof(peer)); |
| 1439 | peer.ipv6.sin6_family = AF_INET6; |
| 1440 | peer.ipv6.sin6_addr = getaddress(ia); |
| 1441 | peer.ipv6.sin6_port = htons(port); |
| 1442 | #if defined(SO_REUSEADDR) |
| 1443 | int opt = 1; |
| 1444 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 1445 | #endif |
| 1446 | if(bind(so, (struct sockaddr *)&peer.ipv6, sizeof(peer.ipv6))) { |
| 1447 | endSocket(); |
| 1448 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 1449 | return; |
| 1450 | } |
| 1451 | state = BOUND; |
| 1452 | } |
| 1453 | #endif |
| 1454 | |
| 1455 | UDPSocket::~UDPSocket() |
| 1456 | { |
| 1457 | endSocket(); |
| 1458 | } |
| 1459 | |
| 1460 | ssize_t UDPSocket::send(const void *buf, size_t len) |
| 1461 | { |
| 1462 | struct sockaddr *addr = NULL; |
| 1463 | socklen_t alen = 0; |
| 1464 | |
| 1465 | switch(family) { |
| 1466 | #ifdef CCXX_IPV6 |
| 1467 | case IPV6: |
| 1468 | addr = (struct sockaddr *)&peer.ipv6; |
| 1469 | alen = sizeof(struct sockaddr_in6); |
| 1470 | break; |
| 1471 | #endif |
| 1472 | case IPV4: |
| 1473 | addr = (struct sockaddr *)&peer.ipv4; |
| 1474 | alen = sizeof(struct sockaddr_in); |
| 1475 | break; |
| 1476 | default: |
| 1477 | return -1; |
| 1478 | } |
| 1479 | |
| 1480 | if(isConnected()) { |
| 1481 | addr = NULL; |
| 1482 | alen = 0; |
| 1483 | } |
| 1484 | |
| 1485 | return _IORET64 ::sendto(so, (const char *)buf, _IOLEN64 len, MSG_NOSIGNAL, addr, alen); |
| 1486 | } |
| 1487 | |
| 1488 | ssize_t UDPSocket::receive(void *buf, size_t len, bool reply) |
| 1489 | { |
| 1490 | struct sockaddr *addr = NULL; |
| 1491 | struct sockaddr_in senderAddress; // DMC 2/7/05 ADD for use below. |
| 1492 | socklen_t alen = 0; |
| 1493 | |
| 1494 | switch(family) { |
| 1495 | #ifdef CCXX_IPV6 |
| 1496 | case IPV6: |
| 1497 | addr = (struct sockaddr *)&peer.ipv6; |
| 1498 | alen = sizeof(struct sockaddr_in6); |
| 1499 | break; |
| 1500 | #endif |
| 1501 | case IPV4: |
| 1502 | addr = (struct sockaddr *)&peer.ipv4; |
| 1503 | alen = sizeof(struct sockaddr_in); |
| 1504 | break; |
| 1505 | default: |
| 1506 | return -1; |
| 1507 | } |
| 1508 | |
| 1509 | if(isConnected() || !reply) { |
| 1510 | // DMC 2/7/05 MOD to use senderAddress instead of NULL, to prevent 10014 error |
| 1511 | // from recvfrom. |
| 1512 | //addr = NULL; |
| 1513 | //alen = 0; |
| 1514 | addr = (struct sockaddr*)(&senderAddress); |
| 1515 | alen = sizeof(struct sockaddr_in); |
| 1516 | } |
| 1517 | |
| 1518 | int bytes = ::recvfrom(so, (char *)buf, _IOLEN64 len, 0, addr, &alen); |
| 1519 | |
| 1520 | #ifdef WIN32 |
| 1521 | int code = 0; |
| 1522 | |
| 1523 | if (bytes == SOCKET_ERROR) { |
| 1524 | code = WSAGetLastError(); |
| 1525 | } |
| 1526 | #endif |
| 1527 | |
| 1528 | return _IORET64 bytes; |
| 1529 | } |
| 1530 | |
| 1531 | Socket::Error UDPSocket::join(const IPV4Multicast &ia,int InterfaceIndex) |
| 1532 | { |
| 1533 | |
| 1534 | #if defined(WIN32) && defined(IP_ADD_MEMBERSHIP) |
| 1535 | |
| 1536 | // DMC 2/7/05: Added WIN32 block. Win32 does not define the ip_mreqn structure, |
| 1537 | // so we must use ip_mreq with INADDR_ANY. |
| 1538 | struct ip_mreq group; |
| 1539 | struct sockaddr_in myaddr; |
| 1540 | socklen_t len = sizeof(myaddr); |
| 1541 | |
| 1542 | if(!flags.multicast) |
| 1543 | return error(errMulticastDisabled); |
| 1544 | |
| 1545 | memset(&group, 0, sizeof(group)); |
| 1546 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1547 | group.imr_multiaddr.s_addr = ia.getAddress().s_addr; |
| 1548 | group.imr_interface.s_addr = INADDR_ANY; |
| 1549 | int retval = setsockopt(so, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1550 | return errSuccess; |
| 1551 | |
| 1552 | #elif defined(IP_ADD_MEMBERSHIP) && defined(SIOCGIFINDEX) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && !defined(_OSF_SOURCE) && !defined(__hpux) && !defined(__GNU__) |
| 1553 | |
| 1554 | struct ip_mreqn group; |
| 1555 | struct sockaddr_in myaddr; |
| 1556 | socklen_t len = sizeof(myaddr); |
| 1557 | |
| 1558 | if(!flags.multicast) |
| 1559 | return error(errMulticastDisabled); |
| 1560 | |
| 1561 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1562 | memset(&group, 0, sizeof(group)); |
| 1563 | memcpy(&group.imr_address, &myaddr.sin_addr, sizeof(&myaddr.sin_addr)); |
| 1564 | group.imr_multiaddr = getaddress(ia); |
| 1565 | group.imr_ifindex = InterfaceIndex; |
| 1566 | setsockopt(so, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1567 | return errSuccess; |
| 1568 | #elif defined(IP_ADD_MEMBERSHIP) |
| 1569 | // if no by index, use INADDR_ANY |
| 1570 | struct ip_mreq group; |
| 1571 | struct sockaddr_in myaddr; |
| 1572 | socklen_t len = sizeof(myaddr); |
| 1573 | |
| 1574 | if(!flags.multicast) |
| 1575 | return error(errMulticastDisabled); |
| 1576 | |
| 1577 | getsockname(so, (struct sockaddr *)&myaddr, &len); |
| 1578 | memset(&group, sizeof(group), 0); |
| 1579 | group.imr_multiaddr.s_addr = ia.getAddress().s_addr; |
| 1580 | group.imr_interface.s_addr = INADDR_ANY; |
| 1581 | setsockopt(so, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *)&group, sizeof(group)); |
| 1582 | return errSuccess; |
| 1583 | #else |
| 1584 | return error(errServiceUnavailable); |
| 1585 | #endif |
| 1586 | } |
| 1587 | |
| 1588 | |
| 1589 | Socket::Error UDPSocket::getInterfaceIndex(const char *DeviceName,int& InterfaceIndex) |
| 1590 | { |
| 1591 | #ifndef WIN32 |
| 1592 | #if defined(IP_ADD_MEMBERSHIP) && defined(SIOCGIFINDEX) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && !defined(_OSF_SOURCE) && !defined(__hpux) && !defined(__GNU__) |
| 1593 | |
| 1594 | struct ip_mreqn mreqn; |
| 1595 | struct ifreq m_ifreq; |
| 1596 | int i; |
| 1597 | sockaddr_in* in4 = (sockaddr_in*) &peer.ipv4; |
| 1598 | InterfaceIndex = -1; |
| 1599 | |
| 1600 | memset(&mreqn, 0, sizeof(mreqn)); |
| 1601 | memcpy(&mreqn.imr_multiaddr.s_addr, &in4->sin_addr, sizeof(mreqn.imr_multiaddr.s_addr)); |
| 1602 | |
| 1603 | for (i = 0; i < IFNAMSIZ && DeviceName[i]; ++i) |
| 1604 | m_ifreq.ifr_name[i] = DeviceName[i]; |
| 1605 | for (; i < IFNAMSIZ; ++i) |
| 1606 | m_ifreq.ifr_name[i] = 0; |
| 1607 | |
| 1608 | if (ioctl (so, SIOCGIFINDEX, &m_ifreq)) |
| 1609 | return error(errServiceUnavailable); |
| 1610 | |
| 1611 | #if defined(__FreeBSD__) || defined(__GNU__) |
| 1612 | InterfaceIndex = m_ifreq.ifr_ifru.ifru_index; |
| 1613 | #else |
| 1614 | InterfaceIndex = m_ifreq.ifr_ifindex; |
| 1615 | #endif |
| 1616 | return errSuccess; |
| 1617 | #else |
| 1618 | return error(errServiceUnavailable); |
| 1619 | #endif |
| 1620 | #else |
| 1621 | return error(errServiceUnavailable); |
| 1622 | #endif // WIN32 |
| 1623 | } |
| 1624 | |
| 1625 | #ifdef AF_UNSPEC |
| 1626 | Socket::Error UDPSocket::disconnect(void) |
| 1627 | { |
| 1628 | struct sockaddr_in addr; |
| 1629 | int len = sizeof(addr); |
| 1630 | |
| 1631 | if(so == INVALID_SOCKET) |
| 1632 | return errSuccess; |
| 1633 | |
| 1634 | Socket::state = BOUND; |
| 1635 | |
| 1636 | memset(&addr, 0, len); |
| 1637 | #ifndef WIN32 |
| 1638 | addr.sin_family = AF_UNSPEC; |
| 1639 | #else |
| 1640 | addr.sin_family = AF_INET; |
| 1641 | memset(&addr.sin_addr, 0, sizeof(addr.sin_addr)); |
| 1642 | #endif |
| 1643 | if(::connect(so, (sockaddr *)&addr, len)) |
| 1644 | return connectError(); |
| 1645 | return errSuccess; |
| 1646 | } |
| 1647 | #else |
| 1648 | Socket::Error UDPSocket::disconnect(void) |
| 1649 | { |
| 1650 | if(so == INVALID_SOCKET) |
| 1651 | return errSuccess; |
| 1652 | |
| 1653 | Socket::state = BOUND; |
| 1654 | return connect(getLocal()); |
| 1655 | } |
| 1656 | #endif |
| 1657 | |
| 1658 | void UDPSocket::setPeer(const IPV4Host &ia, tpport_t port) |
| 1659 | { |
| 1660 | memset(&peer.ipv4, 0, sizeof(peer.ipv4)); |
| 1661 | peer.ipv4.sin_family = AF_INET; |
| 1662 | peer.ipv4.sin_addr = getaddress(ia); |
| 1663 | peer.ipv4.sin_port = htons(port); |
| 1664 | } |
| 1665 | |
| 1666 | void UDPSocket::connect(const IPV4Host &ia, tpport_t port) |
| 1667 | { |
| 1668 | setPeer(ia, port); |
| 1669 | if(so == INVALID_SOCKET) |
| 1670 | return; |
| 1671 | |
| 1672 | if(!::connect(so, (struct sockaddr *)&peer.ipv4, sizeof(struct sockaddr_in))) |
| 1673 | Socket::state = CONNECTED; |
| 1674 | } |
| 1675 | |
| 1676 | #ifdef CCXX_IPV6 |
| 1677 | void UDPSocket::setPeer(const IPV6Host &ia, tpport_t port) |
| 1678 | { |
| 1679 | memset(&peer.ipv6, 0, sizeof(peer.ipv6)); |
| 1680 | peer.ipv6.sin6_family = AF_INET6; |
| 1681 | peer.ipv6.sin6_addr = getaddress(ia); |
| 1682 | peer.ipv6.sin6_port = htons(port); |
| 1683 | } |
| 1684 | |
| 1685 | void UDPSocket::connect(const IPV6Host &ia, tpport_t port) |
| 1686 | { |
| 1687 | setPeer(ia, port); |
| 1688 | |
| 1689 | if(so == INVALID_SOCKET) |
| 1690 | return; |
| 1691 | |
| 1692 | if(!::connect(so, (struct sockaddr *)&peer.ipv6, sizeof(struct sockaddr_in6))) |
| 1693 | Socket::state = CONNECTED; |
| 1694 | |
| 1695 | } |
| 1696 | |
| 1697 | #endif |
| 1698 | |
| 1699 | #ifdef HAVE_GETADDRINFO |
| 1700 | |
| 1701 | void UDPSocket::setPeer(const char *name) |
| 1702 | { |
| 1703 | char namebuf[128], *cp; |
| 1704 | struct addrinfo hint, *list; |
| 1705 | |
| 1706 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1707 | cp = strrchr(namebuf, '/'); |
| 1708 | if(!cp) |
| 1709 | cp = strrchr(namebuf, ':'); |
| 1710 | |
| 1711 | if(!cp) |
| 1712 | return; |
| 1713 | |
| 1714 | memset(&hint, 0, sizeof(hint)); |
| 1715 | hint.ai_family = family; |
| 1716 | hint.ai_socktype = SOCK_DGRAM; |
| 1717 | hint.ai_protocol = IPPROTO_UDP; |
| 1718 | |
| 1719 | if(getaddrinfo(namebuf, cp, &hint, &list) || !list) |
| 1720 | return; |
| 1721 | |
| 1722 | switch(family) { |
| 1723 | #ifdef CCXX_IPV6 |
| 1724 | case IPV6: |
| 1725 | memcpy(&peer.ipv6, list->ai_addr, sizeof(peer.ipv6)); |
| 1726 | break; |
| 1727 | #endif |
| 1728 | case IPV4: |
| 1729 | memcpy(&peer.ipv4, list->ai_addr, sizeof(peer.ipv4)); |
| 1730 | break; |
| 1731 | } |
| 1732 | |
| 1733 | freeaddrinfo(list); |
| 1734 | } |
| 1735 | |
| 1736 | #else |
| 1737 | |
| 1738 | void UDPSocket::setPeer(const char *name) |
| 1739 | { |
| 1740 | char namebuf[128], *cp; |
| 1741 | struct servent *svc; |
| 1742 | tpport_t port; |
| 1743 | |
| 1744 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1745 | cp = strrchr(namebuf, '/'); |
| 1746 | if(!cp) |
| 1747 | cp = strrchr(namebuf, ':'); |
| 1748 | |
| 1749 | if(!cp) |
| 1750 | return; |
| 1751 | |
| 1752 | if(isdigit(*cp)) |
| 1753 | port = atoi(cp); |
| 1754 | else { |
| 1755 | mutex.enter(); |
| 1756 | svc = getservbyname(cp, "udp"); |
| 1757 | if(svc) |
| 1758 | port = ntohs(svc->s_port); |
| 1759 | mutex.leave(); |
| 1760 | if(!svc) |
| 1761 | return; |
| 1762 | } |
| 1763 | |
| 1764 | memset(&peer, 0, sizeof(peer)); |
| 1765 | |
| 1766 | switch(family) { |
| 1767 | #ifdef CCXX_IPV6 |
| 1768 | case IPV6: |
| 1769 | setPeer(IPV6Host(namebuf), port); |
| 1770 | break; |
| 1771 | #endif |
| 1772 | case IPV4: |
| 1773 | setPeer(IPV4Host(namebuf), port); |
| 1774 | break; |
| 1775 | } |
| 1776 | } |
| 1777 | |
| 1778 | #endif |
| 1779 | |
| 1780 | void UDPSocket::connect(const char *service) |
| 1781 | { |
| 1782 | int rtn = -1; |
| 1783 | |
| 1784 | setPeer(service); |
| 1785 | |
| 1786 | if(so == INVALID_SOCKET) |
| 1787 | return; |
| 1788 | |
| 1789 | switch(family) { |
| 1790 | #ifdef CCXX_IPV6 |
| 1791 | case IPV6: |
| 1792 | rtn = ::connect(so, (struct sockaddr *)&peer.ipv6, sizeof(struct sockaddr_in6)); |
| 1793 | break; |
| 1794 | #endif |
| 1795 | case IPV4: |
| 1796 | rtn = ::connect(so, (struct sockaddr *)&peer.ipv4, sizeof(struct sockaddr_in)); |
| 1797 | break; |
| 1798 | } |
| 1799 | if(!rtn) |
| 1800 | Socket::state = CONNECTED; |
| 1801 | } |
| 1802 | |
| 1803 | IPV4Host UDPSocket::getIPV4Peer(tpport_t *port) const |
| 1804 | { |
| 1805 | // FIXME: insufficient buffer |
| 1806 | // how to retrieve peer ?? |
| 1807 | char buf; |
| 1808 | socklen_t len = sizeof(peer.ipv4); |
| 1809 | int rtn = ::recvfrom(so, &buf, 1, MSG_PEEK, (struct sockaddr *)&peer.ipv4, &len); |
| 1810 | |
| 1811 | #ifdef WIN32 |
| 1812 | if(rtn < 1 && WSAGetLastError() != WSAEMSGSIZE) { |
| 1813 | if(port) |
| 1814 | *port = 0; |
| 1815 | |
| 1816 | memset((void*) &peer.ipv4, 0, sizeof(peer.ipv4)); |
| 1817 | } |
| 1818 | #else |
| 1819 | if(rtn < 1) { |
| 1820 | if(port) |
| 1821 | *port = 0; |
| 1822 | |
| 1823 | memset((void*) &peer.ipv4, 0, sizeof(peer.ipv4)); |
| 1824 | } |
| 1825 | #endif |
| 1826 | else { |
| 1827 | if(port) |
| 1828 | *port = ntohs(peer.ipv4.sin_port); |
| 1829 | } |
| 1830 | return IPV4Host(peer.ipv4.sin_addr); |
| 1831 | } |
| 1832 | |
| 1833 | #ifdef CCXX_IPV6 |
| 1834 | IPV6Host UDPSocket::getIPV6Peer(tpport_t *port) const |
| 1835 | { |
| 1836 | // FIXME: insufficient buffer |
| 1837 | // how to retrieve peer ?? |
| 1838 | char buf; |
| 1839 | socklen_t len = sizeof(peer.ipv6); |
| 1840 | int rtn = ::recvfrom(so, &buf, 1, MSG_PEEK, (struct sockaddr *)&peer.ipv6, &len); |
| 1841 | |
| 1842 | #ifdef WIN32 |
| 1843 | if(rtn < 1 && WSAGetLastError() != WSAEMSGSIZE) { |
| 1844 | if(port) |
| 1845 | *port = 0; |
| 1846 | |
| 1847 | memset((void*) &peer.ipv6, 0, sizeof(peer.ipv6)); |
| 1848 | } |
| 1849 | #else |
| 1850 | if(rtn < 1) { |
| 1851 | if(port) |
| 1852 | *port = 0; |
| 1853 | |
| 1854 | memset((void*) &peer.ipv6, 0, sizeof(peer.ipv6)); |
| 1855 | } |
| 1856 | #endif |
| 1857 | else { |
| 1858 | if(port) |
| 1859 | *port = ntohs(peer.ipv6.sin6_port); |
| 1860 | } |
| 1861 | return IPV6Host(peer.ipv6.sin6_addr); |
| 1862 | } |
| 1863 | #endif |
| 1864 | |
| 1865 | UDPBroadcast::UDPBroadcast(const IPV4Address &ia, tpport_t port) : |
| 1866 | UDPSocket(ia, port) |
| 1867 | { |
| 1868 | if(so != INVALID_SOCKET) |
| 1869 | setBroadcast(true); |
| 1870 | } |
| 1871 | |
| 1872 | void UDPBroadcast::setPeer(const IPV4Broadcast &ia, tpport_t port) |
| 1873 | { |
| 1874 | memset(&peer.ipv4, 0, sizeof(peer.ipv4)); |
| 1875 | peer.ipv4.sin_family = AF_INET; |
| 1876 | peer.ipv4.sin_addr = getaddress(ia); |
| 1877 | peer.ipv4.sin_port = htons(port); |
| 1878 | } |
| 1879 | |
| 1880 | void TCPSocket::setSegmentSize(unsigned mss) |
| 1881 | { |
| 1882 | #ifdef TCP_MAXSEG |
| 1883 | if(mss > 1) |
| 1884 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 1885 | #endif |
| 1886 | segsize = mss; |
| 1887 | } |
| 1888 | |
| 1889 | #ifdef HAVE_GETADDRINFO |
| 1890 | TCPSocket::TCPSocket(const char *name, unsigned backlog, unsigned mss) : |
| 1891 | Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) |
| 1892 | { |
| 1893 | char namebuf[128], *cp; |
| 1894 | struct addrinfo hint, *list = NULL, *first; |
| 1895 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1896 | cp = strrchr(namebuf, '/'); |
| 1897 | if(!cp) |
| 1898 | cp = strrchr(namebuf, ':'); |
| 1899 | |
| 1900 | if(!cp) { |
| 1901 | cp = namebuf; |
| 1902 | name = NULL; |
| 1903 | } |
| 1904 | else { |
| 1905 | name = namebuf; |
| 1906 | *(cp++) = 0; |
| 1907 | if(!strcmp(name, "*")) |
| 1908 | name = NULL; |
| 1909 | } |
| 1910 | |
| 1911 | memset(&hint, 0, sizeof(hint)); |
| 1912 | hint.ai_family = AF_INET; |
| 1913 | hint.ai_socktype = SOCK_STREAM; |
| 1914 | hint.ai_protocol = IPPROTO_TCP; |
| 1915 | hint.ai_flags = AI_PASSIVE; |
| 1916 | |
| 1917 | if(getaddrinfo(name, cp, &hint, &list) || !list) { |
| 1918 | endSocket(); |
| 1919 | error(errBindingFailed, (char *)"Could not find service", errno); |
| 1920 | return; |
| 1921 | } |
| 1922 | |
| 1923 | #if defined(SO_REUSEADDR) |
| 1924 | int opt = 1; |
| 1925 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 1926 | (socklen_t)sizeof(opt)); |
| 1927 | #endif |
| 1928 | |
| 1929 | first = list; |
| 1930 | while(list) { |
| 1931 | if(!bind(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 1932 | state = BOUND; |
| 1933 | break; |
| 1934 | } |
| 1935 | list = list->ai_next; |
| 1936 | } |
| 1937 | freeaddrinfo(first); |
| 1938 | if(state != BOUND) { |
| 1939 | endSocket(); |
| 1940 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 1941 | return; |
| 1942 | } |
| 1943 | |
| 1944 | setSegmentSize(mss); |
| 1945 | if(listen(so, backlog)) { |
| 1946 | endSocket(); |
| 1947 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 1948 | return; |
| 1949 | } |
| 1950 | } |
| 1951 | |
| 1952 | #else |
| 1953 | TCPSocket::TCPSocket(const char *name, unsigned backlog, unsigned mss) : |
| 1954 | Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) |
| 1955 | { |
| 1956 | char namebuf[128], *cp; |
| 1957 | struct sockaddr_in addr; |
| 1958 | struct servent *svc; |
| 1959 | |
| 1960 | memset(&addr, 0, sizeof(addr)); |
| 1961 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 1962 | cp = strrchr(namebuf, '/'); |
| 1963 | if(!cp) |
| 1964 | cp = strrchr(namebuf, ':'); |
| 1965 | |
| 1966 | if(!cp) { |
| 1967 | cp = namebuf; |
| 1968 | name = "*"; |
| 1969 | } |
| 1970 | else { |
| 1971 | name = namebuf; |
| 1972 | *(cp++) = 0; |
| 1973 | } |
| 1974 | |
| 1975 | addr.sin_family = AF_INET; |
| 1976 | if(isdigit(*cp)) |
| 1977 | addr.sin_port = htons(atoi(cp)); |
| 1978 | else { |
| 1979 | mutex.enter(); |
| 1980 | svc = getservbyname(cp, "tcp"); |
| 1981 | if(svc) |
| 1982 | addr.sin_port = svc->s_port; |
| 1983 | mutex.leave(); |
| 1984 | if(!svc) { |
| 1985 | endSocket(); |
| 1986 | error(errBindingFailed, "Could not find service", errno); |
| 1987 | return; |
| 1988 | |
| 1989 | } |
| 1990 | } |
| 1991 | |
| 1992 | IPV4Address ia(name); |
| 1993 | addr.sin_addr = getaddress(ia); |
| 1994 | |
| 1995 | #if defined(SO_REUSEADDR) |
| 1996 | int opt = 1; |
| 1997 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 1998 | (socklen_t)sizeof(opt)); |
| 1999 | #endif |
| 2000 | |
| 2001 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2002 | endSocket(); |
| 2003 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2004 | return; |
| 2005 | } |
| 2006 | |
| 2007 | setSegmentSize(mss); |
| 2008 | if(listen(so, backlog)) { |
| 2009 | endSocket(); |
| 2010 | error(errBindingFailed,(char *)"Could not listen on socket", |
| 2011 | socket_errno); |
| 2012 | return; |
| 2013 | } |
| 2014 | state = BOUND; |
| 2015 | } |
| 2016 | |
| 2017 | #endif |
| 2018 | |
| 2019 | TCPSocket::TCPSocket(const IPV4Address &ia, tpport_t port, unsigned backlog, unsigned mss) : |
| 2020 | Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) |
| 2021 | { |
| 2022 | struct sockaddr_in addr; |
| 2023 | |
| 2024 | memset(&addr, 0, sizeof(addr)); |
| 2025 | addr.sin_family = AF_INET; |
| 2026 | addr.sin_addr = getaddress(ia); |
| 2027 | addr.sin_port = htons(port); |
| 2028 | |
| 2029 | #if defined(SO_REUSEADDR) |
| 2030 | int opt = 1; |
| 2031 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 2032 | #endif |
| 2033 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2034 | endSocket(); |
| 2035 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2036 | return; |
| 2037 | } |
| 2038 | |
| 2039 | setSegmentSize(mss); |
| 2040 | |
| 2041 | if(listen(so, backlog)) { |
| 2042 | endSocket(); |
| 2043 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2044 | return; |
| 2045 | } |
| 2046 | state = BOUND; |
| 2047 | } |
| 2048 | |
| 2049 | bool TCPSocket::onAccept(const IPV4Host &ia, tpport_t port) |
| 2050 | { |
| 2051 | return true; |
| 2052 | } |
| 2053 | |
| 2054 | TCPSocket::~TCPSocket() |
| 2055 | { |
| 2056 | endSocket(); |
| 2057 | } |
| 2058 | |
| 2059 | #ifdef CCXX_IPV6 |
| 2060 | |
| 2061 | void TCPV6Socket::setSegmentSize(unsigned mss) |
| 2062 | { |
| 2063 | #ifdef TCP_MAXSEG |
| 2064 | if(mss > 1) |
| 2065 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 2066 | #endif |
| 2067 | segsize = mss; |
| 2068 | } |
| 2069 | |
| 2070 | |
| 2071 | #ifdef HAVE_GETADDRINFO |
| 2072 | TCPV6Socket::TCPV6Socket(const char *name, unsigned backlog, unsigned mss) : |
| 2073 | Socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP) |
| 2074 | { |
| 2075 | char namebuf[128], *cp; |
| 2076 | struct addrinfo hint, *list = NULL, *first; |
| 2077 | |
| 2078 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 2079 | cp = strrchr(namebuf, '/'); |
| 2080 | |
| 2081 | if(!cp) { |
| 2082 | cp = namebuf; |
| 2083 | name = NULL; |
| 2084 | } |
| 2085 | else { |
| 2086 | name = namebuf; |
| 2087 | *(cp++) = 0; |
| 2088 | if(!strcmp(name, "*")) |
| 2089 | name = NULL; |
| 2090 | } |
| 2091 | |
| 2092 | memset(&hint, 0, sizeof(hint)); |
| 2093 | hint.ai_family = AF_INET6; |
| 2094 | hint.ai_socktype = SOCK_STREAM; |
| 2095 | hint.ai_protocol = IPPROTO_TCP; |
| 2096 | hint.ai_flags = AI_PASSIVE; |
| 2097 | |
| 2098 | if(getaddrinfo(name, cp, &hint, &list) || !list) { |
| 2099 | endSocket(); |
| 2100 | error(errBindingFailed, (char *)"Could not find service", errno); |
| 2101 | return; |
| 2102 | } |
| 2103 | |
| 2104 | #if defined(SO_REUSEADDR) |
| 2105 | int opt = 1; |
| 2106 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 2107 | (socklen_t)sizeof(opt)); |
| 2108 | #endif |
| 2109 | |
| 2110 | first = list; |
| 2111 | while(list) { |
| 2112 | if(!bind(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 2113 | state = BOUND; |
| 2114 | break; |
| 2115 | } |
| 2116 | list = list->ai_next; |
| 2117 | } |
| 2118 | freeaddrinfo(first); |
| 2119 | if(state != BOUND) { |
| 2120 | endSocket(); |
| 2121 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2122 | return; |
| 2123 | } |
| 2124 | |
| 2125 | setSegmentSize(mss); |
| 2126 | |
| 2127 | if(listen(so, backlog)) { |
| 2128 | endSocket(); |
| 2129 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2130 | return; |
| 2131 | } |
| 2132 | } |
| 2133 | |
| 2134 | #else |
| 2135 | TCPV6Socket::TCPV6Socket(const char *name, unsigned backlog, unsigned mss) : |
| 2136 | Socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP) |
| 2137 | { |
| 2138 | char namebuf[128], *cp; |
| 2139 | struct sockaddr_in6 addr; |
| 2140 | struct servent *svc; |
| 2141 | |
| 2142 | memset(&addr, 0, sizeof(addr)); |
| 2143 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 2144 | cp = strrchr(namebuf, '/'); |
| 2145 | |
| 2146 | if(!cp) { |
| 2147 | cp = namebuf; |
| 2148 | name = "*"; |
| 2149 | } |
| 2150 | else { |
| 2151 | name = namebuf; |
| 2152 | *(cp++) = 0; |
| 2153 | } |
| 2154 | |
| 2155 | addr.sin6_family = AF_INET6; |
| 2156 | if(isdigit(*cp)) |
| 2157 | addr.sin6_port = htons(atoi(cp)); |
| 2158 | else { |
| 2159 | mutex.enter(); |
| 2160 | svc = getservbyname(cp, "tcp"); |
| 2161 | if(svc) |
| 2162 | addr.sin6_port = svc->s_port; |
| 2163 | mutex.leave(); |
| 2164 | if(!svc) { |
| 2165 | endSocket(); |
| 2166 | error(errBindingFailed, "Could not find service", errno); |
| 2167 | return; |
| 2168 | |
| 2169 | } |
| 2170 | } |
| 2171 | |
| 2172 | IPV6Address ia(name); |
| 2173 | addr.sin6_addr = getaddress(ia); |
| 2174 | |
| 2175 | #if defined(SO_REUSEADDR) |
| 2176 | int opt = 1; |
| 2177 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 2178 | (socklen_t)sizeof(opt)); |
| 2179 | #endif |
| 2180 | |
| 2181 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2182 | endSocket(); |
| 2183 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2184 | return; |
| 2185 | } |
| 2186 | |
| 2187 | setSegmentSize(mss); |
| 2188 | |
| 2189 | if(listen(so, backlog)) { |
| 2190 | endSocket(); |
| 2191 | error(errBindingFailed,(char *)"Could not listen on socket", |
| 2192 | socket_errno); |
| 2193 | return; |
| 2194 | } |
| 2195 | state = BOUND; |
| 2196 | } |
| 2197 | |
| 2198 | #endif |
| 2199 | |
| 2200 | TCPV6Socket::TCPV6Socket(const IPV6Address &ia, tpport_t port, unsigned backlog, unsigned mss) : |
| 2201 | Socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP) |
| 2202 | { |
| 2203 | struct sockaddr_in6 addr; |
| 2204 | |
| 2205 | memset(&addr, 0, sizeof(addr)); |
| 2206 | addr.sin6_family = AF_INET6; |
| 2207 | addr.sin6_addr = getaddress(ia); |
| 2208 | addr.sin6_port = htons(port); |
| 2209 | |
| 2210 | #if defined(SO_REUSEADDR) |
| 2211 | int opt = 1; |
| 2212 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 2213 | #endif |
| 2214 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2215 | endSocket(); |
| 2216 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2217 | return; |
| 2218 | } |
| 2219 | |
| 2220 | setSegmentSize(mss); |
| 2221 | |
| 2222 | if(listen(so, backlog)) { |
| 2223 | endSocket(); |
| 2224 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2225 | return; |
| 2226 | } |
| 2227 | state = BOUND; |
| 2228 | } |
| 2229 | |
| 2230 | bool TCPV6Socket::onAccept(const IPV6Host &ia, tpport_t port) |
| 2231 | { |
| 2232 | return true; |
| 2233 | } |
| 2234 | |
| 2235 | TCPV6Socket::~TCPV6Socket() |
| 2236 | { |
| 2237 | endSocket(); |
| 2238 | } |
| 2239 | |
| 2240 | #endif |
| 2241 | |
| 2242 | void TCPSocket::reject(void) |
| 2243 | { |
| 2244 | SOCKET rej = accept(so, NULL, NULL); |
| 2245 | shutdown(rej, 2); |
| 2246 | #ifdef WIN32 |
| 2247 | closesocket(rej); |
| 2248 | #else |
| 2249 | close(rej); |
| 2250 | #endif |
| 2251 | } |
| 2252 | |
| 2253 | #ifdef CCXX_IPV6 |
| 2254 | void TCPV6Socket::reject(void) |
| 2255 | { |
| 2256 | SOCKET rej = accept(so, NULL, NULL); |
| 2257 | shutdown(rej, 2); |
| 2258 | #ifdef WIN32 |
| 2259 | closesocket(rej); |
| 2260 | #else |
| 2261 | close(rej); |
| 2262 | #endif |
| 2263 | } |
| 2264 | #endif |
| 2265 | |
| 2266 | DCCPSocket::DCCPSocket(Family fam) : |
| 2267 | Socket(fam, SOCK_DCCP, IPPROTO_DCCP) |
| 2268 | { |
| 2269 | family = fam; |
| 2270 | } |
| 2271 | |
| 2272 | DCCPSocket::DCCPSocket(DCCPSocket& server, timeout_t timeout) : |
| 2273 | Socket(accept(server.so, NULL, NULL)) |
| 2274 | { |
| 2275 | family = server.family; |
| 2276 | Socket::state = CONNECTED; |
| 2277 | socklen_t alen = sizeof(peer); |
| 2278 | |
| 2279 | getpeername(so, (struct sockaddr *)&peer, &alen); |
| 2280 | |
| 2281 | switch(family) { |
| 2282 | #ifdef CCXX_IPV6 |
| 2283 | case IPV6: |
| 2284 | if(!server.onAccept(IPV6Host(peer.ipv6.sin6_addr), peer.ipv6.sin6_port)) |
| 2285 | endSocket(); |
| 2286 | break; |
| 2287 | #endif |
| 2288 | case IPV4: |
| 2289 | if(!server.onAccept(IPV4Host(peer.ipv4.sin_addr), peer.ipv4.sin_port)) |
| 2290 | endSocket(); |
| 2291 | break; |
| 2292 | } |
| 2293 | } |
| 2294 | |
| 2295 | #ifdef HAVE_GETADDRINFO |
| 2296 | DCCPSocket::DCCPSocket(const char *name, Family fam, unsigned backlog) : |
| 2297 | Socket(fam, SOCK_DCCP, IPPROTO_DCCP) |
| 2298 | { |
| 2299 | char namebuf[128], *cp; |
| 2300 | struct addrinfo hint, *list = NULL, *first; |
| 2301 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 2302 | cp = strrchr(namebuf, '/'); |
| 2303 | if(!cp) |
| 2304 | cp = strrchr(namebuf, ':'); |
| 2305 | |
| 2306 | if(!cp) { |
| 2307 | cp = namebuf; |
| 2308 | name = NULL; |
| 2309 | } |
| 2310 | else { |
| 2311 | name = namebuf; |
| 2312 | *(cp++) = 0; |
| 2313 | if(!strcmp(name, "*")) |
| 2314 | name = NULL; |
| 2315 | } |
| 2316 | |
| 2317 | family = fam; |
| 2318 | memset(&hint, 0, sizeof(hint)); |
| 2319 | hint.ai_family = family; |
| 2320 | hint.ai_socktype = SOCK_DCCP; |
| 2321 | hint.ai_protocol = IPPROTO_DCCP; |
| 2322 | hint.ai_flags = AI_PASSIVE; |
| 2323 | |
| 2324 | if(getaddrinfo(name, cp, &hint, &list) || !list) { |
| 2325 | endSocket(); |
| 2326 | error(errBindingFailed, (char *)"Could not find service", errno); |
| 2327 | return; |
| 2328 | } |
| 2329 | |
| 2330 | #if defined(SO_REUSEADDR) |
| 2331 | int opt = 1; |
| 2332 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 2333 | (socklen_t)sizeof(opt)); |
| 2334 | #endif |
| 2335 | |
| 2336 | first = list; |
| 2337 | while(list) { |
| 2338 | if(!bind(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 2339 | state = BOUND; |
| 2340 | break; |
| 2341 | } |
| 2342 | list = list->ai_next; |
| 2343 | } |
| 2344 | freeaddrinfo(first); |
| 2345 | if(state != BOUND) { |
| 2346 | endSocket(); |
| 2347 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2348 | return; |
| 2349 | } |
| 2350 | |
| 2351 | if(listen(so, backlog)) { |
| 2352 | endSocket(); |
| 2353 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2354 | return; |
| 2355 | } |
| 2356 | } |
| 2357 | #else |
| 2358 | DCCPSocket::DCCPSocket(const char *name, Family fam, unsigned backlog) : |
| 2359 | Socket(fam, SOCK_DCCP, IPPROTO_DCCP) |
| 2360 | { |
| 2361 | char namebuf[128], *cp; |
| 2362 | struct sockaddr_in addr; |
| 2363 | #ifdef CCXX_IPV6 |
| 2364 | struct sockaddr_in6 addr6; |
| 2365 | #endif |
| 2366 | struct sockaddr_in *ap; |
| 2367 | socklen_t alen = 0; |
| 2368 | |
| 2369 | struct servent *svc; |
| 2370 | |
| 2371 | family = fam; |
| 2372 | memset(&addr, 0, sizeof(addr)); |
| 2373 | snprintf(namebuf, sizeof(namebuf), "%s", name); |
| 2374 | cp = strrchr(namebuf, '/'); |
| 2375 | if(!cp) |
| 2376 | cp = strrchr(namebuf, ':'); |
| 2377 | |
| 2378 | if(!cp) { |
| 2379 | cp = namebuf; |
| 2380 | name = "*"; |
| 2381 | } |
| 2382 | else { |
| 2383 | name = namebuf; |
| 2384 | *(cp++) = 0; |
| 2385 | } |
| 2386 | |
| 2387 | addr.sin_family = family; |
| 2388 | if(isdigit(*cp)) |
| 2389 | addr.sin_port = htons(atoi(cp)); |
| 2390 | else { |
| 2391 | mutex.enter(); |
| 2392 | svc = getservbyname(cp, "dccp"); |
| 2393 | if(svc) |
| 2394 | addr.sin_port = svc->s_port; |
| 2395 | mutex.leave(); |
| 2396 | if(!svc) { |
| 2397 | endSocket(); |
| 2398 | error(errBindingFailed, "Could not find service", errno); |
| 2399 | return; |
| 2400 | |
| 2401 | } |
| 2402 | } |
| 2403 | |
| 2404 | #if defined(SO_REUSEADDR) |
| 2405 | int opt = 1; |
| 2406 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, |
| 2407 | (socklen_t)sizeof(opt)); |
| 2408 | #endif |
| 2409 | |
| 2410 | switch(family) { |
| 2411 | #ifdef CCXX_IPV6 |
| 2412 | case IPV6: |
| 2413 | IPV6Address ia6(name); |
| 2414 | addr6.sin6_port = addr.sin_port; |
| 2415 | addr6.sin6_family = family; |
| 2416 | ap = &addr6; |
| 2417 | alen = sizeof(addr6); |
| 2418 | break; |
| 2419 | #endif |
| 2420 | case IPV4: |
| 2421 | IPV4Address ia(name); |
| 2422 | addr.sin_addr = getaddress(ia); |
| 2423 | ap = &addr; |
| 2424 | alen = sizeof(addr); |
| 2425 | } |
| 2426 | |
| 2427 | if(bind(so, (struct sockaddr *)ap, alen)) { |
| 2428 | endSocket(); |
| 2429 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2430 | return; |
| 2431 | } |
| 2432 | |
| 2433 | if(listen(so, backlog)) { |
| 2434 | endSocket(); |
| 2435 | error(errBindingFailed,(char *)"Could not listen on socket", |
| 2436 | socket_errno); |
| 2437 | return; |
| 2438 | } |
| 2439 | state = BOUND; |
| 2440 | } |
| 2441 | #endif |
| 2442 | |
| 2443 | DCCPSocket::DCCPSocket(const IPV4Address &ia, tpport_t port, unsigned backlog) : |
| 2444 | Socket(AF_INET, SOCK_DCCP, IPPROTO_DCCP) |
| 2445 | { |
| 2446 | struct sockaddr_in addr; |
| 2447 | |
| 2448 | memset(&addr, 0, sizeof(addr)); |
| 2449 | addr.sin_family = AF_INET; |
| 2450 | addr.sin_addr = getaddress(ia); |
| 2451 | addr.sin_port = htons(port); |
| 2452 | family = IPV4; |
| 2453 | |
| 2454 | memset(&peer, 0, sizeof(peer)); |
| 2455 | peer.ipv4 = addr; |
| 2456 | |
| 2457 | #if defined(SO_REUSEADDR) |
| 2458 | int opt = 1; |
| 2459 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 2460 | #endif |
| 2461 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2462 | endSocket(); |
| 2463 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2464 | return; |
| 2465 | } |
| 2466 | |
| 2467 | if(listen(so, backlog)) { |
| 2468 | endSocket(); |
| 2469 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2470 | return; |
| 2471 | } |
| 2472 | state = BOUND; |
| 2473 | } |
| 2474 | |
| 2475 | #ifdef CCXX_IPV6 |
| 2476 | DCCPSocket::DCCPSocket(const IPV6Address &ia, tpport_t port, unsigned backlog) : |
| 2477 | Socket(AF_INET6, SOCK_DCCP, IPPROTO_DCCP) |
| 2478 | { |
| 2479 | struct sockaddr_in6 addr; |
| 2480 | |
| 2481 | memset(&addr, 0, sizeof(addr)); |
| 2482 | addr.sin6_family = AF_INET6; |
| 2483 | addr.sin6_addr = getaddress(ia); |
| 2484 | addr.sin6_port = htons(port); |
| 2485 | |
| 2486 | family = IPV6; |
| 2487 | memset(&peer, 0, sizeof(peer)); |
| 2488 | peer.ipv6 = addr; |
| 2489 | |
| 2490 | #if defined(SO_REUSEADDR) |
| 2491 | int opt = 1; |
| 2492 | setsockopt(so, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, (socklen_t)sizeof(opt)); |
| 2493 | #endif |
| 2494 | if(bind(so, (struct sockaddr *)&addr, sizeof(addr))) { |
| 2495 | endSocket(); |
| 2496 | error(errBindingFailed,(char *)"Could not bind socket",socket_errno); |
| 2497 | return; |
| 2498 | } |
| 2499 | |
| 2500 | if(listen(so, backlog)) { |
| 2501 | endSocket(); |
| 2502 | error(errBindingFailed,(char *)"Could not listen on socket",socket_errno); |
| 2503 | return; |
| 2504 | } |
| 2505 | state = BOUND; |
| 2506 | } |
| 2507 | |
| 2508 | bool DCCPSocket::onAccept(const IPV6Host &ia, tpport_t port) |
| 2509 | { |
| 2510 | return true; |
| 2511 | } |
| 2512 | |
| 2513 | #endif |
| 2514 | |
| 2515 | bool DCCPSocket::onAccept(const IPV4Host &ia, tpport_t port) |
| 2516 | { |
| 2517 | return true; |
| 2518 | } |
| 2519 | |
| 2520 | IPV4Host DCCPSocket::getIPV4Sender(tpport_t *port) const |
| 2521 | { |
| 2522 | if(port) |
| 2523 | *port = ntohs(peer.ipv4.sin_port); |
| 2524 | return IPV4Host(peer.ipv4.sin_addr); |
| 2525 | } |
| 2526 | |
| 2527 | #ifdef CCXX_IPV6 |
| 2528 | IPV6Host DCCPSocket::getIPV6Sender(tpport_t *port) const |
| 2529 | { |
| 2530 | return IPV6Host(peer.ipv6.sin6_addr); |
| 2531 | } |
| 2532 | #endif |
| 2533 | |
| 2534 | DCCPSocket::~DCCPSocket() |
| 2535 | { |
| 2536 | endSocket(); |
| 2537 | } |
| 2538 | |
| 2539 | void DCCPSocket::disconnect(void) |
| 2540 | { |
| 2541 | if(Socket::state != CONNECTED) |
| 2542 | return; |
| 2543 | |
| 2544 | endSocket(); |
| 2545 | so = socket(family, SOCK_DCCP, IPPROTO_DCCP); |
| 2546 | if(so != INVALID_SOCKET) |
| 2547 | Socket::state = AVAILABLE; |
| 2548 | } |
| 2549 | |
| 2550 | #ifdef HAVE_GETADDRINFO |
| 2551 | void DCCPSocket::connect(const char *target) |
| 2552 | { |
| 2553 | char namebuf[128]; |
| 2554 | char *cp; |
| 2555 | struct addrinfo hint, *list = NULL, *next, *first; |
| 2556 | bool connected = false; |
| 2557 | |
| 2558 | snprintf(namebuf, sizeof(namebuf), "%s", target); |
| 2559 | cp = strrchr(namebuf, '/'); |
| 2560 | if(!cp) |
| 2561 | cp = strrchr(namebuf, ':'); |
| 2562 | |
| 2563 | if(!cp) { |
| 2564 | connectError(); |
| 2565 | return; |
| 2566 | } |
| 2567 | |
| 2568 | *(cp++) = 0; |
| 2569 | |
| 2570 | memset(&hint, 0, sizeof(hint)); |
| 2571 | hint.ai_family = family; |
| 2572 | hint.ai_socktype = SOCK_DCCP; |
| 2573 | hint.ai_protocol = IPPROTO_DCCP; |
| 2574 | |
| 2575 | if(getaddrinfo(namebuf, cp, &hint, &list) || !list) { |
| 2576 | connectError(); |
| 2577 | return; |
| 2578 | } |
| 2579 | |
| 2580 | first = list; |
| 2581 | |
| 2582 | while(list) { |
| 2583 | if(!::connect(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 2584 | connected = true; |
| 2585 | break; |
| 2586 | } |
| 2587 | next = list->ai_next; |
| 2588 | list = next; |
| 2589 | } |
| 2590 | |
| 2591 | freeaddrinfo(first); |
| 2592 | |
| 2593 | if(!connected) { |
| 2594 | connectError(); |
| 2595 | return; |
| 2596 | } |
| 2597 | |
| 2598 | Socket::state = CONNECTED; |
| 2599 | } |
| 2600 | #else |
| 2601 | void DCCPSocket::connect(const char *target) |
| 2602 | { |
| 2603 | char namebuf[128]; |
| 2604 | char *cp; |
| 2605 | bool connected = false; |
| 2606 | struct servent *svc; |
| 2607 | tpport_t port; |
| 2608 | |
| 2609 | snprintf(namebuf, sizeof(namebuf), "%s", target); |
| 2610 | cp = strrchr(namebuf, '/'); |
| 2611 | if(!cp) |
| 2612 | cp = strrchr(namebuf, ':'); |
| 2613 | |
| 2614 | if(!cp) { |
| 2615 | connectError(); |
| 2616 | return; |
| 2617 | } |
| 2618 | |
| 2619 | *(cp++) = 0; |
| 2620 | |
| 2621 | if(isdigit(*cp)) |
| 2622 | port = atoi(cp); |
| 2623 | else { |
| 2624 | mutex.enter(); |
| 2625 | svc = getservbyname(cp, "dccp"); |
| 2626 | if(svc) |
| 2627 | port = ntohs(svc->s_port); |
| 2628 | mutex.leave(); |
| 2629 | if(!svc) { |
| 2630 | connectError(); |
| 2631 | return; |
| 2632 | } |
| 2633 | } |
| 2634 | |
| 2635 | switch(family) { |
| 2636 | case IPV4: |
| 2637 | connect(IPV4Host(namebuf), port); |
| 2638 | break; |
| 2639 | #ifdef CCXX_IPV6 |
| 2640 | case IPV6: |
| 2641 | connect(IPV6Host(namebuf), port); |
| 2642 | break; |
| 2643 | #endif |
| 2644 | default: |
| 2645 | connectError(); |
| 2646 | } |
| 2647 | } |
| 2648 | #endif |
| 2649 | |
| 2650 | void DCCPSocket::connect(const IPV4Host &host, tpport_t port, timeout_t timeout) |
| 2651 | { |
| 2652 | size_t i; |
| 2653 | fd_set fds; |
| 2654 | struct timeval to; |
| 2655 | bool connected = false; |
| 2656 | int rtn; |
| 2657 | int sockopt; |
| 2658 | socklen_t len = sizeof(sockopt); |
| 2659 | |
| 2660 | for(i = 0 ; i < host.getAddressCount(); i++) { |
| 2661 | struct sockaddr_in addr; |
| 2662 | memset(&addr, 0, sizeof(addr)); |
| 2663 | addr.sin_family = AF_INET; |
| 2664 | addr.sin_addr = host.getAddress(i); |
| 2665 | addr.sin_port = htons(port); |
| 2666 | |
| 2667 | if(timeout) |
| 2668 | setCompletion(false); |
| 2669 | |
| 2670 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 2671 | if ( INADDR_ANY == addr.sin_addr.s_addr ) |
| 2672 | addr.sin_addr.s_addr = INADDR_LOOPBACK; |
| 2673 | rtn = ::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)); |
| 2674 | if(!rtn) { |
| 2675 | connected = true; |
| 2676 | break; |
| 2677 | } |
| 2678 | |
| 2679 | #ifndef WIN32 |
| 2680 | if(errno == EINPROGRESS) |
| 2681 | #else |
| 2682 | if(WSAGetLastError() == WSAEINPROGRESS) |
| 2683 | #endif |
| 2684 | { |
| 2685 | FD_ZERO(&fds); |
| 2686 | FD_SET(so, &fds); |
| 2687 | to.tv_sec = timeout / 1000; |
| 2688 | to.tv_usec = timeout % 1000 * 1000; |
| 2689 | |
| 2690 | // timeout check for connect completion |
| 2691 | |
| 2692 | if(::select((int)so + 1, NULL, &fds, NULL, &to) < 1) |
| 2693 | continue; |
| 2694 | |
| 2695 | getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len); |
| 2696 | if(!sockopt) { |
| 2697 | connected = true; |
| 2698 | break; |
| 2699 | } |
| 2700 | endSocket(); |
| 2701 | so = socket(AF_INET, SOCK_DCCP, IPPROTO_DCCP); |
| 2702 | if(so == INVALID_SOCKET) |
| 2703 | break; |
| 2704 | } |
| 2705 | } |
| 2706 | |
| 2707 | setCompletion(true); |
| 2708 | if(!connected) { |
| 2709 | rtn = errno; |
| 2710 | errno = rtn; |
| 2711 | connectError(); |
| 2712 | return; |
| 2713 | } |
| 2714 | |
| 2715 | Socket::state = CONNECTED; |
| 2716 | } |
| 2717 | |
| 2718 | #ifdef CCXX_IPV6 |
| 2719 | void DCCPSocket::connect(const IPV6Host &host, tpport_t port, timeout_t timeout) |
| 2720 | { |
| 2721 | size_t i; |
| 2722 | fd_set fds; |
| 2723 | struct timeval to; |
| 2724 | bool connected = false; |
| 2725 | int rtn; |
| 2726 | int sockopt; |
| 2727 | socklen_t len = sizeof(sockopt); |
| 2728 | |
| 2729 | for(i = 0 ; i < host.getAddressCount(); i++) { |
| 2730 | struct sockaddr_in6 addr; |
| 2731 | memset(&addr, 0, sizeof(addr)); |
| 2732 | addr.sin6_family = AF_INET6; |
| 2733 | addr.sin6_addr = host.getAddress(i); |
| 2734 | addr.sin6_port = htons(port); |
| 2735 | |
| 2736 | if(timeout) |
| 2737 | setCompletion(false); |
| 2738 | |
| 2739 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 2740 | if ( !memcmp(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any))) |
| 2741 | memcpy(&addr.sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)); |
| 2742 | rtn = ::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)); |
| 2743 | if(!rtn) { |
| 2744 | connected = true; |
| 2745 | break; |
| 2746 | } |
| 2747 | |
| 2748 | #ifndef WIN32 |
| 2749 | if(errno == EINPROGRESS) |
| 2750 | #else |
| 2751 | if(WSAGetLastError() == WSAEINPROGRESS) |
| 2752 | #endif |
| 2753 | { |
| 2754 | FD_ZERO(&fds); |
| 2755 | FD_SET(so, &fds); |
| 2756 | to.tv_sec = timeout / 1000; |
| 2757 | to.tv_usec = timeout % 1000 * 1000; |
| 2758 | |
| 2759 | // timeout check for connect completion |
| 2760 | |
| 2761 | if(::select((int)so + 1, NULL, &fds, NULL, &to) < 1) |
| 2762 | continue; |
| 2763 | |
| 2764 | getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len); |
| 2765 | if(!sockopt) { |
| 2766 | connected = true; |
| 2767 | break; |
| 2768 | } |
| 2769 | endSocket(); |
| 2770 | so = socket(AF_INET6, SOCK_DCCP, IPPROTO_DCCP); |
| 2771 | if(so == INVALID_SOCKET) |
| 2772 | break; |
| 2773 | } |
| 2774 | } |
| 2775 | |
| 2776 | setCompletion(true); |
| 2777 | if(!connected) { |
| 2778 | rtn = errno; |
| 2779 | errno = rtn; |
| 2780 | connectError(); |
| 2781 | return; |
| 2782 | } |
| 2783 | |
| 2784 | Socket::state = CONNECTED; |
| 2785 | } |
| 2786 | #endif |
| 2787 | |
| 2788 | bool DCCPSocket::setCCID(uint8 ccid) |
| 2789 | { |
| 2790 | uint8 ccids[16]; /* for getting the available CCIDs, should be large enough */ |
| 2791 | socklen_t len = sizeof(ccids); |
| 2792 | int ret; |
| 2793 | bool ccid_supported = false; |
| 2794 | |
| 2795 | /* |
| 2796 | * Determine which CCIDs are available on the host |
| 2797 | */ |
| 2798 | ret = getsockopt(so, SOL_DCCP, DCCP_SOCKOPT_AVAILABLE_CCIDS, (char *)&ccids, &len); |
| 2799 | if (ret < 0) { |
| 2800 | error(errInput,(char *)"Can not determine available CCIDs",socket_errno); |
| 2801 | return false; |
| 2802 | } |
| 2803 | |
| 2804 | for (unsigned i = 0; i < sizeof(ccids); i++) { |
| 2805 | if (ccid == ccids[i]) { |
| 2806 | ccid_supported = true; |
| 2807 | break; |
| 2808 | } |
| 2809 | } |
| 2810 | |
| 2811 | if (!ccid_supported) { |
| 2812 | error(errInput,(char *)"CCID specified is not supported",socket_errno); |
| 2813 | return false; |
| 2814 | } |
| 2815 | |
| 2816 | if (setsockopt(so, SOL_DCCP, DCCP_SOCKOPT_CCID, (char *)&ccid, sizeof (ccid)) < 0) { |
| 2817 | error(errInput,(char *)"Can not set CCID",socket_errno); |
| 2818 | return false; |
| 2819 | } |
| 2820 | |
| 2821 | return true; |
| 2822 | } |
| 2823 | |
| 2824 | int DCCPSocket::getTxCCID() |
| 2825 | { |
| 2826 | int ccid, ret; |
| 2827 | socklen_t ccidlen; |
| 2828 | |
| 2829 | ccidlen = sizeof(ccid); |
| 2830 | ret = getsockopt(so, SOL_DCCP, DCCP_SOCKOPT_TX_CCID, (char *)&ccid, &ccidlen); |
| 2831 | if (ret < 0) { |
| 2832 | error(errInput,(char *)"Can not determine get current TX CCID value",socket_errno); |
| 2833 | return -1; |
| 2834 | } |
| 2835 | return ccid; |
| 2836 | } |
| 2837 | |
| 2838 | int DCCPSocket::getRxCCID() |
| 2839 | { |
| 2840 | int ccid, ret; |
| 2841 | socklen_t ccidlen; |
| 2842 | |
| 2843 | ccidlen = sizeof(ccid); |
| 2844 | ret = getsockopt(so, SOL_DCCP, DCCP_SOCKOPT_RX_CCID, (char *)&ccid, &ccidlen); |
| 2845 | if (ret < 0) { |
| 2846 | error(errInput,(char *)"Can not determine get current DX CCID value",socket_errno); |
| 2847 | return -1; |
| 2848 | } |
| 2849 | return ccid; |
| 2850 | } |
| 2851 | |
| 2852 | #ifndef WIN32 |
| 2853 | #include <sys/ioctl.h> |
| 2854 | #endif |
| 2855 | size_t DCCPSocket::available() |
| 2856 | { |
| 2857 | size_t readsize; |
| 2858 | #ifndef WIN32 |
| 2859 | if (ioctl (so, FIONREAD, &readsize) < 0) { |
| 2860 | error(errInput,(char *)"Error on retrieve the FIONREAD option.",socket_errno); |
| 2861 | } |
| 2862 | #else |
| 2863 | if (ioctlsocket(so, FIOREAD, &readsize)){ |
| 2864 | error(errInput,(char *)"Error on retrieve the FIONREAD option.",socket_errno); |
| 2865 | } |
| 2866 | #endif |
| 2867 | return readsize; |
| 2868 | } |
| 2869 | |
| 2870 | TCPStream::TCPStream(TCPSocket &server, bool throwflag, timeout_t to) : |
| 2871 | streambuf(), Socket(accept(server.getSocket(), NULL, NULL)), |
| 2872 | #ifdef HAVE_OLD_IOSTREAM |
| 2873 | iostream() |
| 2874 | #else |
| 2875 | iostream((streambuf *)this) |
| 2876 | #endif |
| 2877 | ,bufsize(0) |
| 2878 | ,gbuf(NULL) |
| 2879 | ,pbuf(NULL) { |
| 2880 | tpport_t port; |
| 2881 | family = IPV4; |
| 2882 | |
| 2883 | #ifdef HAVE_OLD_IOSTREAM |
| 2884 | init((streambuf *)this); |
| 2885 | #endif |
| 2886 | |
| 2887 | timeout = to; |
| 2888 | setError(throwflag); |
| 2889 | IPV4Host host = getPeer(&port); |
| 2890 | if(!server.onAccept(host, port)) { |
| 2891 | endSocket(); |
| 2892 | error(errConnectRejected); |
| 2893 | clear(ios::failbit | rdstate()); |
| 2894 | return; |
| 2895 | } |
| 2896 | |
| 2897 | segmentBuffering(server.getSegmentSize()); |
| 2898 | Socket::state = CONNECTED; |
| 2899 | } |
| 2900 | |
| 2901 | #ifdef CCXX_IPV6 |
| 2902 | TCPStream::TCPStream(TCPV6Socket &server, bool throwflag, timeout_t to) : |
| 2903 | streambuf(), Socket(accept(server.getSocket(), NULL, NULL)), |
| 2904 | #ifdef HAVE_OLD_IOSTREAM |
| 2905 | iostream() |
| 2906 | #else |
| 2907 | iostream((streambuf *)this) |
| 2908 | #endif |
| 2909 | ,bufsize(0) |
| 2910 | ,gbuf(NULL) |
| 2911 | ,pbuf(NULL) { |
| 2912 | tpport_t port; |
| 2913 | |
| 2914 | family = IPV6; |
| 2915 | |
| 2916 | #ifdef HAVE_OLD_IOSTREAM |
| 2917 | init((streambuf *)this); |
| 2918 | #endif |
| 2919 | |
| 2920 | timeout = to; |
| 2921 | setError(throwflag); |
| 2922 | IPV6Host host = getIPV6Peer(&port); |
| 2923 | if(!server.onAccept(host, port)) { |
| 2924 | endSocket(); |
| 2925 | error(errConnectRejected); |
| 2926 | clear(ios::failbit | rdstate()); |
| 2927 | return; |
| 2928 | } |
| 2929 | |
| 2930 | segmentBuffering(server.getSegmentSize()); |
| 2931 | Socket::state = CONNECTED; |
| 2932 | } |
| 2933 | #endif |
| 2934 | |
| 2935 | TCPStream::TCPStream(const IPV4Host &host, tpport_t port, unsigned size, bool throwflag, timeout_t to) : |
| 2936 | streambuf(), Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP), |
| 2937 | #ifdef HAVE_OLD_IOSTREAM |
| 2938 | iostream(), |
| 2939 | #else |
| 2940 | iostream((streambuf *)this), |
| 2941 | #endif |
| 2942 | bufsize(0),gbuf(NULL),pbuf(NULL) { |
| 2943 | #ifdef HAVE_OLD_IOSTREAM |
| 2944 | init((streambuf *)this); |
| 2945 | #endif |
| 2946 | family = IPV4; |
| 2947 | timeout = to; |
| 2948 | setError(throwflag); |
| 2949 | connect(host, port, size); |
| 2950 | } |
| 2951 | |
| 2952 | #ifdef CCXX_IPV6 |
| 2953 | TCPStream::TCPStream(const IPV6Host &host, tpport_t port, unsigned size, bool throwflag, timeout_t to) : |
| 2954 | streambuf(), Socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP), |
| 2955 | #ifdef HAVE_OLD_IOSTREAM |
| 2956 | iostream(), |
| 2957 | #else |
| 2958 | iostream((streambuf *)this), |
| 2959 | #endif |
| 2960 | bufsize(0),gbuf(NULL),pbuf(NULL) { |
| 2961 | family = IPV6; |
| 2962 | |
| 2963 | #ifdef HAVE_OLD_IOSTREAM |
| 2964 | init((streambuf *)this); |
| 2965 | #endif |
| 2966 | timeout = to; |
| 2967 | setError(throwflag); |
| 2968 | connect(host, port, size); |
| 2969 | } |
| 2970 | #endif |
| 2971 | |
| 2972 | TCPStream::~TCPStream() |
| 2973 | { |
| 2974 | #ifdef CCXX_EXCEPTIONS |
| 2975 | try { endStream(); } |
| 2976 | catch( ... ) { if ( ! std::uncaught_exception()) throw;}; |
| 2977 | #else |
| 2978 | endStream(); |
| 2979 | #endif |
| 2980 | } |
| 2981 | |
| 2982 | #ifdef HAVE_GETADDRINFO |
| 2983 | |
| 2984 | void TCPStream::connect(const char *target, unsigned mss) |
| 2985 | { |
| 2986 | char namebuf[128]; |
| 2987 | char *cp; |
| 2988 | struct addrinfo hint, *list = NULL, *next, *first; |
| 2989 | bool connected = false; |
| 2990 | |
| 2991 | snprintf(namebuf, sizeof(namebuf), "%s", target); |
| 2992 | cp = strrchr(namebuf, '/'); |
| 2993 | if(!cp) |
| 2994 | cp = strrchr(namebuf, ':'); |
| 2995 | |
| 2996 | if(!cp) { |
| 2997 | endStream(); |
| 2998 | connectError(); |
| 2999 | return; |
| 3000 | } |
| 3001 | |
| 3002 | *(cp++) = 0; |
| 3003 | |
| 3004 | memset(&hint, 0, sizeof(hint)); |
| 3005 | hint.ai_family = family; |
| 3006 | hint.ai_socktype = SOCK_STREAM; |
| 3007 | hint.ai_protocol = IPPROTO_TCP; |
| 3008 | |
| 3009 | if(getaddrinfo(namebuf, cp, &hint, &list) || !list) { |
| 3010 | endStream(); |
| 3011 | connectError(); |
| 3012 | return; |
| 3013 | } |
| 3014 | |
| 3015 | first = list; |
| 3016 | |
| 3017 | #ifdef TCP_MAXSEG |
| 3018 | if(mss) |
| 3019 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 3020 | #endif |
| 3021 | |
| 3022 | while(list) { |
| 3023 | if(!::connect(so, list->ai_addr, (socklen_t)list->ai_addrlen)) { |
| 3024 | connected = true; |
| 3025 | break; |
| 3026 | } |
| 3027 | next = list->ai_next; |
| 3028 | list = next; |
| 3029 | } |
| 3030 | |
| 3031 | freeaddrinfo(first); |
| 3032 | |
| 3033 | if(!connected) { |
| 3034 | endStream(); |
| 3035 | connectError(); |
| 3036 | return; |
| 3037 | } |
| 3038 | |
| 3039 | segmentBuffering(mss); |
| 3040 | Socket::state = CONNECTED; |
| 3041 | } |
| 3042 | |
| 3043 | #else |
| 3044 | |
| 3045 | void TCPStream::connect(const char *target, unsigned mss) |
| 3046 | { |
| 3047 | char namebuf[128]; |
| 3048 | char *cp; |
| 3049 | bool connected = false; |
| 3050 | struct servent *svc; |
| 3051 | tpport_t port; |
| 3052 | |
| 3053 | snprintf(namebuf, sizeof(namebuf), "%s", target); |
| 3054 | cp = strrchr(namebuf, '/'); |
| 3055 | if(!cp) |
| 3056 | cp = strrchr(namebuf, ':'); |
| 3057 | |
| 3058 | if(!cp) { |
| 3059 | endStream(); |
| 3060 | connectError(); |
| 3061 | return; |
| 3062 | } |
| 3063 | |
| 3064 | *(cp++) = 0; |
| 3065 | |
| 3066 | if(isdigit(*cp)) |
| 3067 | port = atoi(cp); |
| 3068 | else { |
| 3069 | mutex.enter(); |
| 3070 | svc = getservbyname(cp, "tcp"); |
| 3071 | if(svc) |
| 3072 | port = ntohs(svc->s_port); |
| 3073 | mutex.leave(); |
| 3074 | if(!svc) { |
| 3075 | endStream(); |
| 3076 | connectError(); |
| 3077 | return; |
| 3078 | } |
| 3079 | } |
| 3080 | |
| 3081 | switch(family) { |
| 3082 | case IPV4: |
| 3083 | connect(IPV4Host(namebuf), port, mss); |
| 3084 | break; |
| 3085 | #ifdef CCXX_IPV6 |
| 3086 | case IPV6: |
| 3087 | connect(IPV6Host(namebuf), port, mss); |
| 3088 | break; |
| 3089 | #endif |
| 3090 | default: |
| 3091 | endStream(); |
| 3092 | connectError(); |
| 3093 | } |
| 3094 | } |
| 3095 | |
| 3096 | #endif |
| 3097 | |
| 3098 | void TCPStream::connect(const IPV4Host &host, tpport_t port, unsigned mss) |
| 3099 | { |
| 3100 | size_t i; |
| 3101 | fd_set fds; |
| 3102 | struct timeval to; |
| 3103 | bool connected = false; |
| 3104 | int rtn; |
| 3105 | int sockopt; |
| 3106 | socklen_t len = sizeof(sockopt); |
| 3107 | |
| 3108 | #ifdef TCP_MAXSEG |
| 3109 | if(mss) |
| 3110 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 3111 | #endif |
| 3112 | |
| 3113 | for(i = 0 ; i < host.getAddressCount(); i++) { |
| 3114 | struct sockaddr_in addr; |
| 3115 | memset(&addr, 0, sizeof(addr)); |
| 3116 | addr.sin_family = AF_INET; |
| 3117 | addr.sin_addr = host.getAddress(i); |
| 3118 | addr.sin_port = htons(port); |
| 3119 | |
| 3120 | if(timeout) |
| 3121 | setCompletion(false); |
| 3122 | |
| 3123 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 3124 | if ( INADDR_ANY == addr.sin_addr.s_addr ) |
| 3125 | addr.sin_addr.s_addr = INADDR_LOOPBACK; |
| 3126 | rtn = ::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)); |
| 3127 | if(!rtn) { |
| 3128 | connected = true; |
| 3129 | break; |
| 3130 | } |
| 3131 | |
| 3132 | #ifndef WIN32 |
| 3133 | if(errno == EINPROGRESS) |
| 3134 | #else |
| 3135 | if(WSAGetLastError() == WSAEINPROGRESS) |
| 3136 | #endif |
| 3137 | { |
| 3138 | FD_ZERO(&fds); |
| 3139 | FD_SET(so, &fds); |
| 3140 | to.tv_sec = timeout / 1000; |
| 3141 | to.tv_usec = timeout % 1000 * 1000; |
| 3142 | |
| 3143 | // timeout check for connect completion |
| 3144 | |
| 3145 | if(::select((int)so + 1, NULL, &fds, NULL, &to) < 1) |
| 3146 | continue; |
| 3147 | |
| 3148 | getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len); |
| 3149 | if(!sockopt) { |
| 3150 | connected = true; |
| 3151 | break; |
| 3152 | } |
| 3153 | endSocket(); |
| 3154 | so = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 3155 | if(so == INVALID_SOCKET) |
| 3156 | break; |
| 3157 | } |
| 3158 | } |
| 3159 | |
| 3160 | setCompletion(true); |
| 3161 | if(!connected) { |
| 3162 | rtn = errno; |
| 3163 | endStream(); |
| 3164 | errno = rtn; |
| 3165 | connectError(); |
| 3166 | return; |
| 3167 | } |
| 3168 | |
| 3169 | segmentBuffering(mss); |
| 3170 | Socket::state = CONNECTED; |
| 3171 | } |
| 3172 | |
| 3173 | #ifdef CCXX_IPV6 |
| 3174 | void TCPStream::connect(const IPV6Host &host, tpport_t port, unsigned mss) |
| 3175 | { |
| 3176 | size_t i; |
| 3177 | fd_set fds; |
| 3178 | struct timeval to; |
| 3179 | bool connected = false; |
| 3180 | int rtn; |
| 3181 | int sockopt; |
| 3182 | socklen_t len = sizeof(sockopt); |
| 3183 | |
| 3184 | #ifdef TCP_MAXSEG |
| 3185 | if(mss) |
| 3186 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 3187 | #endif |
| 3188 | |
| 3189 | for(i = 0 ; i < host.getAddressCount(); i++) { |
| 3190 | struct sockaddr_in6 addr; |
| 3191 | memset(&addr, 0, sizeof(addr)); |
| 3192 | addr.sin6_family = AF_INET6; |
| 3193 | addr.sin6_addr = host.getAddress(i); |
| 3194 | addr.sin6_port = htons(port); |
| 3195 | |
| 3196 | if(timeout) |
| 3197 | setCompletion(false); |
| 3198 | |
| 3199 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 3200 | if ( !memcmp(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any))) |
| 3201 | memcpy(&addr.sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)); |
| 3202 | rtn = ::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)); |
| 3203 | if(!rtn) { |
| 3204 | connected = true; |
| 3205 | break; |
| 3206 | } |
| 3207 | |
| 3208 | #ifndef WIN32 |
| 3209 | if(errno == EINPROGRESS) |
| 3210 | #else |
| 3211 | if(WSAGetLastError() == WSAEINPROGRESS) |
| 3212 | #endif |
| 3213 | { |
| 3214 | FD_ZERO(&fds); |
| 3215 | FD_SET(so, &fds); |
| 3216 | to.tv_sec = timeout / 1000; |
| 3217 | to.tv_usec = timeout % 1000 * 1000; |
| 3218 | |
| 3219 | // timeout check for connect completion |
| 3220 | |
| 3221 | if(::select((int)so + 1, NULL, &fds, NULL, &to) < 1) |
| 3222 | continue; |
| 3223 | |
| 3224 | getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len); |
| 3225 | if(!sockopt) { |
| 3226 | connected = true; |
| 3227 | break; |
| 3228 | } |
| 3229 | endSocket(); |
| 3230 | so = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); |
| 3231 | if(so == INVALID_SOCKET) |
| 3232 | break; |
| 3233 | } |
| 3234 | } |
| 3235 | |
| 3236 | setCompletion(true); |
| 3237 | if(!connected) { |
| 3238 | rtn = errno; |
| 3239 | endStream(); |
| 3240 | errno = rtn; |
| 3241 | connectError(); |
| 3242 | return; |
| 3243 | } |
| 3244 | |
| 3245 | segmentBuffering(mss); |
| 3246 | Socket::state = CONNECTED; |
| 3247 | } |
| 3248 | #endif |
| 3249 | |
| 3250 | TCPStream::TCPStream(const char *target, Family fam, unsigned mss, bool throwflag, timeout_t to) : |
| 3251 | streambuf(), Socket(PF_INET, SOCK_STREAM, IPPROTO_TCP), |
| 3252 | #ifdef HAVE_OLD_IOSTREAM |
| 3253 | iostream(), |
| 3254 | #else |
| 3255 | iostream((streambuf *)this), |
| 3256 | #endif |
| 3257 | timeout(to), bufsize(0),gbuf(NULL),pbuf(NULL) |
| 3258 | { |
| 3259 | family = fam; |
| 3260 | #ifdef HAVE_OLD_IOSTREAM |
| 3261 | init((streambuf *)this); |
| 3262 | #endif |
| 3263 | setError(throwflag); |
| 3264 | connect(target, mss); |
| 3265 | } |
| 3266 | |
| 3267 | TCPStream::TCPStream(Family fam, bool throwflag, timeout_t to) : |
| 3268 | streambuf(), Socket(PF_INET, SOCK_STREAM, IPPROTO_TCP), |
| 3269 | #ifdef HAVE_OLD_IOSTREAM |
| 3270 | iostream(), |
| 3271 | #else |
| 3272 | iostream((streambuf *)this), |
| 3273 | #endif |
| 3274 | timeout(to), bufsize(0),gbuf(NULL),pbuf(NULL) |
| 3275 | { |
| 3276 | family = fam; |
| 3277 | #ifdef HAVE_OLD_IOSTREAM |
| 3278 | init((streambuf *)this); |
| 3279 | #endif |
| 3280 | setError(throwflag); |
| 3281 | } |
| 3282 | |
| 3283 | TCPStream::TCPStream(const TCPStream &source) : |
| 3284 | streambuf(), Socket(DUP_SOCK(source.so,source.state)), |
| 3285 | #ifdef HAVE_OLD_IOSTREAM |
| 3286 | iostream() |
| 3287 | #else |
| 3288 | iostream((streambuf *)this) |
| 3289 | #endif |
| 3290 | { |
| 3291 | family = source.family; |
| 3292 | #ifdef HAVE_OLD_IOSTREAM |
| 3293 | init((streambuf *)this); |
| 3294 | #endif |
| 3295 | bufsize = source.bufsize; |
| 3296 | allocate(bufsize); |
| 3297 | } |
| 3298 | |
| 3299 | void TCPStream::connect(TCPSocket &tcpip) |
| 3300 | { |
| 3301 | tpport_t port; |
| 3302 | |
| 3303 | endStream(); |
| 3304 | family = IPV4; |
| 3305 | so = accept(tcpip.getSocket(), NULL, NULL); |
| 3306 | if(so == INVALID_SOCKET) |
| 3307 | return; |
| 3308 | |
| 3309 | IPV4Host host = getPeer(&port); |
| 3310 | if(!tcpip.onAccept(host, port)) { |
| 3311 | endSocket(); |
| 3312 | clear(ios::failbit | rdstate()); |
| 3313 | return; |
| 3314 | } |
| 3315 | |
| 3316 | segmentBuffering(tcpip.getSegmentSize()); |
| 3317 | Socket::state = CONNECTED; |
| 3318 | } |
| 3319 | |
| 3320 | #ifdef CCXX_IPV6 |
| 3321 | |
| 3322 | void TCPStream::connect(TCPV6Socket &tcpip) |
| 3323 | { |
| 3324 | tpport_t port; |
| 3325 | |
| 3326 | endStream(); |
| 3327 | family = IPV6; |
| 3328 | so = accept(tcpip.getSocket(), NULL, NULL); |
| 3329 | if(so == INVALID_SOCKET) |
| 3330 | return; |
| 3331 | |
| 3332 | IPV6Host host = getIPV6Peer(&port); |
| 3333 | if(!tcpip.onAccept(host, port)) { |
| 3334 | endSocket(); |
| 3335 | clear(ios::failbit | rdstate()); |
| 3336 | return; |
| 3337 | } |
| 3338 | |
| 3339 | segmentBuffering(tcpip.getSegmentSize()); |
| 3340 | Socket::state = CONNECTED; |
| 3341 | } |
| 3342 | #endif |
| 3343 | |
| 3344 | void TCPStream::segmentBuffering(unsigned mss) |
| 3345 | { |
| 3346 | unsigned max = 0; |
| 3347 | socklen_t alen = sizeof(max); |
| 3348 | |
| 3349 | if(mss == 1) { // special interactive |
| 3350 | allocate(1); |
| 3351 | return; |
| 3352 | } |
| 3353 | |
| 3354 | #ifdef TCP_MAXSEG |
| 3355 | if(mss) |
| 3356 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&max, sizeof(max)); |
| 3357 | getsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&max, &alen); |
| 3358 | #endif |
| 3359 | |
| 3360 | if(max && max < mss) |
| 3361 | mss = max; |
| 3362 | |
| 3363 | if(!mss) { |
| 3364 | if(max) |
| 3365 | mss = max; |
| 3366 | else |
| 3367 | mss = 536; |
| 3368 | allocate(mss); |
| 3369 | return; |
| 3370 | } |
| 3371 | |
| 3372 | #ifdef TCP_MAXSEG |
| 3373 | setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss)); |
| 3374 | #endif |
| 3375 | |
| 3376 | if(mss < 80) |
| 3377 | mss = 80; |
| 3378 | |
| 3379 | if(mss * 7 < 64000) |
| 3380 | bufferSize(mss * 7); |
| 3381 | else if(mss * 6 < 64000) |
| 3382 | bufferSize(mss * 6); |
| 3383 | else |
| 3384 | bufferSize(mss * 5); |
| 3385 | |
| 3386 | if(mss < 512) |
| 3387 | sendLimit(mss * 4); |
| 3388 | |
| 3389 | allocate(mss); |
| 3390 | } |
| 3391 | |
| 3392 | int TCPStream::getSegmentSize(void) |
| 3393 | { |
| 3394 | unsigned mss = 0; |
| 3395 | #ifdef TCP_MAXSEG |
| 3396 | socklen_t alen = sizeof(mss); |
| 3397 | |
| 3398 | getsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, &alen); |
| 3399 | #endif |
| 3400 | if(!mss) |
| 3401 | return (int)bufsize; |
| 3402 | |
| 3403 | return mss; |
| 3404 | } |
| 3405 | |
| 3406 | void TCPStream::disconnect(void) |
| 3407 | { |
| 3408 | if(Socket::state == AVAILABLE) |
| 3409 | return; |
| 3410 | |
| 3411 | endStream(); |
| 3412 | so = socket(family, SOCK_STREAM, IPPROTO_TCP); |
| 3413 | if(so != INVALID_SOCKET) |
| 3414 | Socket::state = AVAILABLE; |
| 3415 | } |
| 3416 | |
| 3417 | void TCPStream::endStream(void) |
| 3418 | { |
| 3419 | if(bufsize) |
| 3420 | sync(); |
| 3421 | if(gbuf) |
| 3422 | delete[] gbuf; |
| 3423 | if(pbuf) |
| 3424 | delete[] pbuf; |
| 3425 | gbuf = pbuf = NULL; |
| 3426 | bufsize = 0; |
| 3427 | clear(); |
| 3428 | endSocket(); |
| 3429 | } |
| 3430 | |
| 3431 | void TCPStream::allocate(size_t size) |
| 3432 | { |
| 3433 | if(size < 2) { |
| 3434 | bufsize = 1; |
| 3435 | gbuf = pbuf = 0; |
| 3436 | return; |
| 3437 | } |
| 3438 | |
| 3439 | gbuf = new char[size]; |
| 3440 | pbuf = new char[size]; |
| 3441 | if(!pbuf || !gbuf) { |
| 3442 | error(errResourceFailure, (char *)"Could not allocate socket stream buffers"); |
| 3443 | return; |
| 3444 | } |
| 3445 | bufsize = size; |
| 3446 | clear(); |
| 3447 | |
| 3448 | #if (defined(__GNUC__) && (__GNUC__ < 3)) && !defined(WIN32) && !defined(STLPORT) |
| 3449 | setb(gbuf, gbuf + size, 0); |
| 3450 | #endif |
| 3451 | setg(gbuf, gbuf + size, gbuf + size); |
| 3452 | setp(pbuf, pbuf + size); |
| 3453 | } |
| 3454 | |
| 3455 | int TCPStream::doallocate() |
| 3456 | { |
| 3457 | if(bufsize) |
| 3458 | return 0; |
| 3459 | |
| 3460 | allocate(1); |
| 3461 | return 1; |
| 3462 | } |
| 3463 | |
| 3464 | int TCPStream::uflow() |
| 3465 | { |
| 3466 | int ret = underflow(); |
| 3467 | |
| 3468 | if (ret == EOF) |
| 3469 | return EOF; |
| 3470 | |
| 3471 | if (bufsize != 1) |
| 3472 | gbump(1); |
| 3473 | |
| 3474 | return ret; |
| 3475 | } |
| 3476 | |
| 3477 | int TCPStream::underflow() |
| 3478 | { |
| 3479 | ssize_t rlen = 1; |
| 3480 | unsigned char ch; |
| 3481 | |
| 3482 | if(bufsize == 1) { |
| 3483 | if(Socket::state == STREAM) |
| 3484 | rlen = ::read((int)so, (char *)&ch, 1); |
| 3485 | else if(timeout && !Socket::isPending(pendingInput, timeout)) { |
| 3486 | clear(ios::failbit | rdstate()); |
| 3487 | error(errTimeout,(char *)"Socket read timed out",socket_errno); |
| 3488 | return EOF; |
| 3489 | } |
| 3490 | else |
| 3491 | rlen = readData(&ch, 1); |
| 3492 | if(rlen < 1) { |
| 3493 | if(rlen < 0) { |
| 3494 | clear(ios::failbit | rdstate()); |
| 3495 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 3496 | } |
| 3497 | return EOF; |
| 3498 | } |
| 3499 | return ch; |
| 3500 | } |
| 3501 | |
| 3502 | if(!gptr()) |
| 3503 | return EOF; |
| 3504 | |
| 3505 | if(gptr() < egptr()) |
| 3506 | return (unsigned char)*gptr(); |
| 3507 | |
| 3508 | rlen = (ssize_t)((gbuf + bufsize) - eback()); |
| 3509 | if(Socket::state == STREAM) |
| 3510 | rlen = ::read((int)so, (char *)eback(), _IOLEN64 rlen); |
| 3511 | else if(timeout && !Socket::isPending(pendingInput, timeout)) { |
| 3512 | clear(ios::failbit | rdstate()); |
| 3513 | error(errTimeout,(char *)"Socket read timed out",socket_errno); |
| 3514 | return EOF; |
| 3515 | } |
| 3516 | else |
| 3517 | rlen = readData(eback(), rlen); |
| 3518 | if(rlen < 1) { |
| 3519 | // clear(ios::failbit | rdstate()); |
| 3520 | if(rlen < 0) |
| 3521 | error(errNotConnected,(char *)"Connection error",socket_errno); |
| 3522 | else { |
| 3523 | error(errInput,(char *)"Could not read from socket",socket_errno); |
| 3524 | clear(ios::failbit | rdstate()); |
| 3525 | } |
| 3526 | return EOF; |
| 3527 | } |
| 3528 | error(errSuccess); |
| 3529 | |
| 3530 | setg(eback(), eback(), eback() + rlen); |
| 3531 | return (unsigned char) *gptr(); |
| 3532 | } |
| 3533 | |
| 3534 | bool TCPStream::isPending(Pending pending, timeout_t timer) |
| 3535 | { |
| 3536 | if(pending == pendingInput && in_avail()) |
| 3537 | return true; |
| 3538 | else if(pending == pendingOutput) |
| 3539 | flush(); |
| 3540 | |
| 3541 | return Socket::isPending(pending, timer); |
| 3542 | } |
| 3543 | |
| 3544 | int TCPStream::sync(void) |
| 3545 | { |
| 3546 | overflow(EOF); |
| 3547 | setg(gbuf, gbuf + bufsize, gbuf + bufsize); |
| 3548 | return 0; |
| 3549 | } |
| 3550 | |
| 3551 | #ifdef HAVE_SNPRINTF |
| 3552 | size_t TCPStream::printf(const char *format, ...) |
| 3553 | { |
| 3554 | va_list args; |
| 3555 | size_t len; |
| 3556 | char *buf; |
| 3557 | |
| 3558 | va_start(args, format); |
| 3559 | overflow(EOF); |
| 3560 | len = pptr() - pbase(); |
| 3561 | buf = pptr(); |
| 3562 | vsnprintf(buf, len, format, args); |
| 3563 | va_end(args); |
| 3564 | len = strlen(buf); |
| 3565 | if(Socket::state == STREAM) |
| 3566 | return ::write((int)so, buf, _IOLEN64 len); |
| 3567 | else |
| 3568 | return writeData(buf, len); |
| 3569 | } |
| 3570 | #endif |
| 3571 | |
| 3572 | int TCPStream::overflow(int c) |
| 3573 | { |
| 3574 | unsigned char ch; |
| 3575 | ssize_t rlen, req; |
| 3576 | |
| 3577 | if(bufsize == 1) { |
| 3578 | if(c == EOF) |
| 3579 | return 0; |
| 3580 | |
| 3581 | ch = (unsigned char)(c); |
| 3582 | if(Socket::state == STREAM) |
| 3583 | rlen = ::write((int)so, (const char *)&ch, 1); |
| 3584 | else |
| 3585 | rlen = writeData(&ch, 1); |
| 3586 | if(rlen < 1) { |
| 3587 | if(rlen < 0) { |
| 3588 | clear(ios::failbit | rdstate()); |
| 3589 | error(errOutput,(char *)"Could not write to socket",socket_errno); |
| 3590 | } |
| 3591 | return EOF; |
| 3592 | } |
| 3593 | else |
| 3594 | return c; |
| 3595 | } |
| 3596 | |
| 3597 | if(!pbase()) |
| 3598 | return EOF; |
| 3599 | |
| 3600 | req = (ssize_t)(pptr() - pbase()); |
| 3601 | if(req) { |
| 3602 | if(Socket::state == STREAM) |
| 3603 | rlen = ::write((int)so, (const char *)pbase(), req); |
| 3604 | else |
| 3605 | rlen = writeData(pbase(), req); |
| 3606 | if(rlen < 1) { |
| 3607 | if(rlen < 0) { |
| 3608 | clear(ios::failbit | rdstate()); |
| 3609 | error(errOutput,(char *)"Could not write to socket",socket_errno); |
| 3610 | } |
| 3611 | return EOF; |
| 3612 | } |
| 3613 | req -= rlen; |
| 3614 | } |
| 3615 | |
| 3616 | // if write "partial", rebuffer remainder |
| 3617 | |
| 3618 | if(req) |
| 3619 | // memmove(pbuf, pptr() + rlen, req); |
| 3620 | memmove(pbuf, pbuf + rlen, req); |
| 3621 | setp(pbuf, pbuf + bufsize); |
| 3622 | pbump(req); |
| 3623 | |
| 3624 | if(c != EOF) { |
| 3625 | *pptr() = (unsigned char)c; |
| 3626 | pbump(1); |
| 3627 | } |
| 3628 | return c; |
| 3629 | } |
| 3630 | |
| 3631 | TCPSession::TCPSession(const IPV4Host &ia, tpport_t port, size_t size, int pri, size_t stack) : |
| 3632 | Thread(pri, stack), TCPStream(IPV4) |
| 3633 | { |
| 3634 | setCompletion(false); |
| 3635 | setError(false); |
| 3636 | allocate(size); |
| 3637 | |
| 3638 | size_t i; |
| 3639 | for(i = 0 ; i < ia.getAddressCount(); i++) { |
| 3640 | struct sockaddr_in addr; |
| 3641 | memset(&addr, 0, sizeof(addr)); |
| 3642 | addr.sin_family = AF_INET; |
| 3643 | addr.sin_addr = ia.getAddress(i); |
| 3644 | addr.sin_port = htons(port); |
| 3645 | |
| 3646 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 3647 | if ( INADDR_ANY == addr.sin_addr.s_addr ) |
| 3648 | addr.sin_addr.s_addr = INADDR_LOOPBACK; |
| 3649 | if(::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)) == 0) |
| 3650 | break; |
| 3651 | |
| 3652 | #ifdef WIN32 |
| 3653 | if(WSAGetLastError() == WSAEISCONN || WSAGetLastError() == WSAEWOULDBLOCK) |
| 3654 | #else |
| 3655 | if(errno == EINPROGRESS) |
| 3656 | #endif |
| 3657 | { |
| 3658 | Socket::state = CONNECTING; |
| 3659 | return; |
| 3660 | } |
| 3661 | } |
| 3662 | |
| 3663 | if(i == ia.getAddressCount()) { |
| 3664 | endSocket(); |
| 3665 | Socket::state = INITIAL; |
| 3666 | return; |
| 3667 | } |
| 3668 | |
| 3669 | setCompletion(true); |
| 3670 | Socket::state = CONNECTED; |
| 3671 | } |
| 3672 | |
| 3673 | #ifdef CCXX_IPV6 |
| 3674 | TCPSession::TCPSession(const IPV6Host &ia, tpport_t port, size_t size, int pri, size_t stack) : |
| 3675 | Thread(pri, stack), TCPStream(IPV6) |
| 3676 | { |
| 3677 | setCompletion(false); |
| 3678 | setError(false); |
| 3679 | allocate(size); |
| 3680 | |
| 3681 | size_t i; |
| 3682 | for(i = 0 ; i < ia.getAddressCount(); i++) { |
| 3683 | struct sockaddr_in6 addr; |
| 3684 | memset(&addr, 0, sizeof(addr)); |
| 3685 | addr.sin6_family = AF_INET6; |
| 3686 | addr.sin6_addr = ia.getAddress(i); |
| 3687 | addr.sin6_port = htons(port); |
| 3688 | |
| 3689 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 3690 | if(!memcmp(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any))) |
| 3691 | memcpy(&addr.sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)); |
| 3692 | if(::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)) == 0) |
| 3693 | break; |
| 3694 | |
| 3695 | #ifdef WIN32 |
| 3696 | // if(WSAGetLastError() == WSAEWOULDBLOCK) |
| 3697 | if(WSAGetLastError() == WSAEISCONN) |
| 3698 | #else |
| 3699 | if(errno == EINPROGRESS) |
| 3700 | #endif |
| 3701 | { |
| 3702 | Socket::state = CONNECTING; |
| 3703 | return; |
| 3704 | } |
| 3705 | } |
| 3706 | |
| 3707 | if(i == ia.getAddressCount()) { |
| 3708 | endSocket(); |
| 3709 | Socket::state = INITIAL; |
| 3710 | return; |
| 3711 | } |
| 3712 | |
| 3713 | setCompletion(true); |
| 3714 | Socket::state = CONNECTED; |
| 3715 | } |
| 3716 | #endif |
| 3717 | |
| 3718 | |
| 3719 | TCPSession::TCPSession(TCPSocket &s, int pri, size_t stack) : |
| 3720 | Thread(pri, stack), TCPStream(s) |
| 3721 | { |
| 3722 | setCompletion(true); |
| 3723 | setError(false); |
| 3724 | } |
| 3725 | |
| 3726 | #ifdef CCXX_IPV6 |
| 3727 | TCPSession::TCPSession(TCPV6Socket &s, int pri, size_t stack) : |
| 3728 | Thread(pri, stack), TCPStream(s) |
| 3729 | { |
| 3730 | setCompletion(true); |
| 3731 | setError(false); |
| 3732 | } |
| 3733 | #endif |
| 3734 | |
| 3735 | TCPSession::~TCPSession() |
| 3736 | { |
| 3737 | endStream(); |
| 3738 | } |
| 3739 | |
| 3740 | int TCPSession::waitConnection(timeout_t timer) |
| 3741 | { |
| 3742 | int sockopt = 0; |
| 3743 | socklen_t len = sizeof(sockopt); |
| 3744 | |
| 3745 | switch(Socket::state) { |
| 3746 | case INITIAL: |
| 3747 | return -1; |
| 3748 | case CONNECTED: |
| 3749 | break; |
| 3750 | case CONNECTING: |
| 3751 | if(!Socket::isPending(pendingOutput, timer)) { |
| 3752 | endSocket(); |
| 3753 | Socket::state = INITIAL; |
| 3754 | return -1; |
| 3755 | } |
| 3756 | |
| 3757 | getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len); |
| 3758 | if(sockopt) { |
| 3759 | endSocket(); |
| 3760 | Socket::state = INITIAL; |
| 3761 | return -1; |
| 3762 | } |
| 3763 | default: |
| 3764 | break; |
| 3765 | } |
| 3766 | Socket::state = CONNECTED; |
| 3767 | return 0; |
| 3768 | } |
| 3769 | |
| 3770 | void TCPSession::initial(void) |
| 3771 | { |
| 3772 | if(waitConnection(60000)) |
| 3773 | exit(); |
| 3774 | } |
| 3775 | |
| 3776 | ostream& operator<<(ostream &os, const IPV4Address &ia) |
| 3777 | { |
| 3778 | os << inet_ntoa(getaddress(ia)); |
| 3779 | return os; |
| 3780 | } |
| 3781 | |
| 3782 | #ifdef WIN32 |
| 3783 | init_WSA::init_WSA() |
| 3784 | { |
| 3785 | //-initialize OS socket resources! |
| 3786 | WSADATA wsaData; |
| 3787 | |
| 3788 | if (WSAStartup(MAKEWORD(2, 2), &wsaData)) { |
| 3789 | abort(); |
| 3790 | } |
| 3791 | }; |
| 3792 | |
| 3793 | init_WSA::~init_WSA() |
| 3794 | { |
| 3795 | WSACleanup(); |
| 3796 | } |
| 3797 | |
| 3798 | init_WSA init_wsa; |
| 3799 | #endif |
| 3800 | |
| 3801 | #ifdef CCXX_NAMESPACES |
| 3802 | } |
| 3803 | #endif |
| 3804 | |
| 3805 | /** EMACS ** |
| 3806 | * Local variables: |
| 3807 | * mode: c++ |
| 3808 | * c-basic-offset: 4 |
| 3809 | * End: |
| 3810 | */ |