mono/metadata/socket-io.c

   1 /*
   2  * socket-io.c: Socket IO internal calls
   3  *
   4  * Authors:
   5  *      Dick Porter (dick@ximian.com)
   6  *      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7  *
   8  * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
   9  * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
  10  */
  11
  12 #include <config.h>
  13
  14 #include <glib.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17 #ifdef HAVE_UNISTD_H
  18 #include <unistd.h>
  19 #endif
  20 #include <errno.h>
  21
  22 #include <sys/types.h>
  23 #ifndef HOST_WIN32
  24 #include <sys/socket.h>
  25 #include <sys/ioctl.h>
  26 #include <netinet/in.h>
  27 #include <netinet/tcp.h>
  28 #include <netdb.h>
  29 #include <arpa/inet.h>
  30 #endif
  31
  32 #include <mono/metadata/object.h>
  33 #include <mono/io-layer/io-layer.h>
  34 #include <mono/metadata/socket-io.h>
  35 #include <mono/metadata/exception.h>
  36 #include <mono/metadata/assembly.h>
  37 #include <mono/metadata/appdomain.h>
  38 #include <mono/metadata/file-io.h>
  39 #include <mono/metadata/threads.h>
  40 #include <mono/metadata/threads-types.h>
  41 #include <mono/utils/mono-poll.h>
  42 /* FIXME change this code to not mess so much with the internals */
  43 #include <mono/metadata/class-internals.h>
  44 #include <mono/metadata/threadpool-internals.h>
  45 #include <mono/metadata/domain-internals.h>
  46
  47 #ifdef HAVE_SYS_TIME_H
  48 #include <sys/time.h>
  49 #endif
  50 #ifdef HAVE_SYS_IOCTL_H
  51 #include <sys/ioctl.h>
  52 #endif
  53 #ifdef HAVE_NET_IF_H
  54 #include <net/if.h>
  55 #endif
  56
  57 #ifdef HAVE_NETDB_H
  58 #include <netdb.h>
  59 #endif
  60 #ifdef HAVE_SYS_FILIO_H
  61 #include <sys/filio.h>     /* defines FIONBIO and FIONREAD */
  62 #endif
  63 #ifdef HAVE_SYS_SOCKIO_H
  64 #include <sys/sockio.h>    /* defines SIOCATMARK */
  65 #endif
  66 #ifdef HAVE_SYS_UN_H
  67 #include <sys/un.h>
  68 #endif
  69
  70 #include "mono/io-layer/socket-wrappers.h"
  71
  72 #ifdef HOST_WIN32
  73 /* This is a kludge to make this file build under cygwin:
  74  * w32api/ws2tcpip.h has definitions for some AF_INET6 values and
  75  * prototypes for some but not all required functions (notably
  76  * inet_ntop() is missing), but the libws2_32 library is missing the
  77  * actual implementations of these functions.
  78  */
  79 #undef AF_INET6
  80 #endif
  81
  82 #ifdef PLATFORM_ANDROID
  83 // not yet actually implemented...
  84 #undef AF_INET6
  85 #endif
  86
  87 #define LOGDEBUG(...)
  88 /* define LOGDEBUG(...) g_message(__VA_ARGS__)  */
  89
  90 /*
  91  * Some older versions of libc provide IPV6 support without defining the AI_ADDRCONFIG
  92  * flag for getaddrinfo.
  93  */
  94 #ifndef AI_ADDRCONFIG
  95 #define AI_ADDRCONFIG 0
  96 #endif
  97
  98 static gint32 convert_family(MonoAddressFamily mono_family)
  99 {
 100         gint32 family=-1;
 101
 102         switch(mono_family) {
 103         case AddressFamily_Unknown:
 104         case AddressFamily_ImpLink:
 105         case AddressFamily_Pup:
 106         case AddressFamily_Chaos:
 107         case AddressFamily_Iso:
 108         case AddressFamily_Ecma:
 109         case AddressFamily_DataKit:
 110         case AddressFamily_Ccitt:
 111         case AddressFamily_DataLink:
 112         case AddressFamily_Lat:
 113         case AddressFamily_HyperChannel:
 114         case AddressFamily_NetBios:
 115         case AddressFamily_VoiceView:
 116         case AddressFamily_FireFox:
 117         case AddressFamily_Banyan:
 118         case AddressFamily_Atm:
 119         case AddressFamily_Cluster:
 120         case AddressFamily_Ieee12844:
 121         case AddressFamily_NetworkDesigners:
 122                 g_warning("System.Net.Sockets.AddressFamily has unsupported value 0x%x", mono_family);
 123                 break;
 124
 125         case AddressFamily_Unspecified:
 126                 family=AF_UNSPEC;
 127                 break;
 128
 129         case AddressFamily_Unix:
 130                 family=AF_UNIX;
 131                 break;
 132
 133         case AddressFamily_InterNetwork:
 134                 family=AF_INET;
 135                 break;
 136
 137         case AddressFamily_Ipx:
 138 #ifdef AF_IPX
 139                 family=AF_IPX;
 140 #endif
 141                 break;
 142
 143         case AddressFamily_Sna:
 144 #ifdef AF_SNA
 145                 family=AF_SNA;
 146 #endif
 147                 break;
 148
 149         case AddressFamily_DecNet:
 150 #ifdef AF_DECnet
 151                 family=AF_DECnet;
 152 #endif
 153                 break;
 154
 155         case AddressFamily_AppleTalk:
 156                 family=AF_APPLETALK;
 157                 break;
 158
 159         case AddressFamily_InterNetworkV6:
 160 #ifdef AF_INET6
 161                 family=AF_INET6;
 162 #endif
 163                 break;
 164         case AddressFamily_Irda:
 165 #ifdef AF_IRDA
 166                 family=AF_IRDA;
 167 #endif
 168                 break;
 169         default:
 170                 g_warning("System.Net.Sockets.AddressFamily has unknown value 0x%x", mono_family);
 171         }
 172
 173         return(family);
 174 }
 175
 176 static MonoAddressFamily convert_to_mono_family(guint16 af_family)
 177 {
 178         MonoAddressFamily family=AddressFamily_Unknown;
 179
 180         switch(af_family) {
 181         case AF_UNSPEC:
 182                 family=AddressFamily_Unspecified;
 183                 break;
 184
 185         case AF_UNIX:
 186                 family=AddressFamily_Unix;
 187                 break;
 188
 189         case AF_INET:
 190                 family=AddressFamily_InterNetwork;
 191                 break;
 192
 193 #ifdef AF_IPX
 194         case AF_IPX:
 195                 family=AddressFamily_Ipx;
 196                 break;
 197 #endif
 198
 199 #ifdef AF_SNA
 200         case AF_SNA:
 201                 family=AddressFamily_Sna;
 202                 break;
 203 #endif
 204
 205 #ifdef AF_DECnet
 206         case AF_DECnet:
 207                 family=AddressFamily_DecNet;
 208                 break;
 209 #endif
 210
 211         case AF_APPLETALK:
 212                 family=AddressFamily_AppleTalk;
 213                 break;
 214
 215 #ifdef AF_INET6
 216         case AF_INET6:
 217                 family=AddressFamily_InterNetworkV6;
 218                 break;
 219 #endif
 220
 221 #ifdef AF_IRDA
 222         case AF_IRDA:
 223                 family=AddressFamily_Irda;
 224                 break;
 225 #endif
 226         default:
 227                 g_warning("unknown address family 0x%x", af_family);
 228         }
 229
 230         return(family);
 231 }
 232
 233 static gint32 convert_type(MonoSocketType mono_type)
 234 {
 235         gint32 type=-1;
 236
 237         switch(mono_type) {
 238         case SocketType_Stream:
 239                 type=SOCK_STREAM;
 240                 break;
 241
 242         case SocketType_Dgram:
 243                 type=SOCK_DGRAM;
 244                 break;
 245
 246         case SocketType_Raw:
 247                 type=SOCK_RAW;
 248                 break;
 249
 250         case SocketType_Rdm:
 251 #ifdef SOCK_RDM
 252                 type=SOCK_RDM;
 253 #endif
 254                 break;
 255
 256         case SocketType_Seqpacket:
 257                 type=SOCK_SEQPACKET;
 258                 break;
 259
 260         case SocketType_Unknown:
 261                 g_warning("System.Net.Sockets.SocketType has unsupported value 0x%x", mono_type);
 262                 break;
 263
 264         default:
 265                 g_warning("System.Net.Sockets.SocketType has unknown value 0x%x", mono_type);
 266         }
 267
 268         return(type);
 269 }
 270
 271 static gint32 convert_proto(MonoProtocolType mono_proto)
 272 {
 273         gint32 proto=-1;
 274
 275         switch(mono_proto) {
 276         case ProtocolType_IP:
 277         case ProtocolType_IPv6:
 278         case ProtocolType_Icmp:
 279         case ProtocolType_Igmp:
 280         case ProtocolType_Ggp:
 281         case ProtocolType_Tcp:
 282         case ProtocolType_Pup:
 283         case ProtocolType_Udp:
 284         case ProtocolType_Idp:
 285                 /* These protocols are known (on my system at least) */
 286                 proto=mono_proto;
 287                 break;
 288
 289         case ProtocolType_ND:
 290         case ProtocolType_Raw:
 291         case ProtocolType_Ipx:
 292         case ProtocolType_Spx:
 293         case ProtocolType_SpxII:
 294         case ProtocolType_Unknown:
 295                 /* These protocols arent */
 296                 g_warning("System.Net.Sockets.ProtocolType has unsupported value 0x%x", mono_proto);
 297                 break;
 298
 299         default:
 300                 break;
 301         }
 302
 303         return(proto);
 304 }
 305
 306 /* Convert MonoSocketFlags */
 307 static gint32 convert_socketflags (gint32 sflags)
 308 {
 309         gint32 flags = 0;
 310
 311         if (!sflags)
 312                 /* SocketFlags.None */
 313                 return 0;
 314
 315         if (sflags & ~(SocketFlags_OutOfBand | SocketFlags_MaxIOVectorLength | SocketFlags_Peek |
 316                         SocketFlags_DontRoute | SocketFlags_Partial))
 317                 /* Contains invalid flag values */
 318                 return -1;
 319
 320         if (sflags & SocketFlags_OutOfBand)
 321                 flags |= MSG_OOB;
 322         if (sflags & SocketFlags_Peek)
 323                 flags |= MSG_PEEK;
 324         if (sflags & SocketFlags_DontRoute)
 325                 flags |= MSG_DONTROUTE;
 326
 327         /* Ignore Partial - see bug 349688.  Don't return -1, because
 328          * according to the comment in that bug ms runtime doesn't for
 329          * UDP sockets (this means we will silently ignore it for TCP
 330          * too)
 331          */
 332 #ifdef MSG_MORE
 333         if (sflags & SocketFlags_Partial)
 334                 flags |= MSG_MORE;
 335 #endif
 336 #if 0
 337         /* Don't do anything for MaxIOVectorLength */
 338         if (sflags & SocketFlags_MaxIOVectorLength)
 339                 return -1;
 340 #endif
 341         return flags;
 342 }
 343
 344 /*
 345  * Returns:
 346  *    0 on success (mapped mono_level and mono_name to system_level and system_name
 347  *   -1 on error
 348  *   -2 on non-fatal error (ie, must ignore)
 349  */
 350 static gint32 convert_sockopt_level_and_name(MonoSocketOptionLevel mono_level,
 351                                              MonoSocketOptionName mono_name,
 352                                              int *system_level,
 353                                              int *system_name)
 354 {
 355         switch (mono_level) {
 356         case SocketOptionLevel_Socket:
 357                 *system_level = SOL_SOCKET;
 358
 359                 switch(mono_name) {
 360                 case SocketOptionName_DontLinger:
 361                         /* This is SO_LINGER, because the setsockopt
 362                          * internal call maps DontLinger to SO_LINGER
 363                          * with l_onoff=0
 364                          */
 365                         *system_name = SO_LINGER;
 366                         break;
 367                 case SocketOptionName_Debug:
 368                         *system_name = SO_DEBUG;
 369                         break;
 370 #ifdef SO_ACCEPTCONN
 371                 case SocketOptionName_AcceptConnection:
 372                         *system_name = SO_ACCEPTCONN;
 373                         break;
 374 #endif
 375                 case SocketOptionName_ReuseAddress:
 376                         *system_name = SO_REUSEADDR;
 377                         break;
 378                 case SocketOptionName_KeepAlive:
 379                         *system_name = SO_KEEPALIVE;
 380                         break;
 381                 case SocketOptionName_DontRoute:
 382                         *system_name = SO_DONTROUTE;
 383                         break;
 384                 case SocketOptionName_Broadcast:
 385                         *system_name = SO_BROADCAST;
 386                         break;
 387                 case SocketOptionName_Linger:
 388                         *system_name = SO_LINGER;
 389                         break;
 390                 case SocketOptionName_OutOfBandInline:
 391                         *system_name = SO_OOBINLINE;
 392                         break;
 393                 case SocketOptionName_SendBuffer:
 394                         *system_name = SO_SNDBUF;
 395                         break;
 396                 case SocketOptionName_ReceiveBuffer:
 397                         *system_name = SO_RCVBUF;
 398                         break;
 399                 case SocketOptionName_SendLowWater:
 400                         *system_name = SO_SNDLOWAT;
 401                         break;
 402                 case SocketOptionName_ReceiveLowWater:
 403                         *system_name = SO_RCVLOWAT;
 404                         break;
 405                 case SocketOptionName_SendTimeout:
 406                         *system_name = SO_SNDTIMEO;
 407                         break;
 408                 case SocketOptionName_ReceiveTimeout:
 409                         *system_name = SO_RCVTIMEO;
 410                         break;
 411                 case SocketOptionName_Error:
 412                         *system_name = SO_ERROR;
 413                         break;
 414                 case SocketOptionName_Type:
 415                         *system_name = SO_TYPE;
 416                         break;
 417 #ifdef SO_PEERCRED
 418                 case SocketOptionName_PeerCred:
 419                         *system_name = SO_PEERCRED;
 420                         break;
 421 #endif
 422                 case SocketOptionName_ExclusiveAddressUse:
 423 #ifdef SO_EXCLUSIVEADDRUSE
 424                         *system_name = SO_EXCLUSIVEADDRUSE;
 425                         break;
 426 #endif
 427                 case SocketOptionName_UseLoopback:
 428 #ifdef SO_USELOOPBACK
 429                         *system_name = SO_USELOOPBACK;
 430                         break;
 431 #endif
 432                 case SocketOptionName_MaxConnections:
 433 #ifdef SO_MAXCONN
 434                         *system_name = SO_MAXCONN;
 435                         break;
 436 #elif defined(SOMAXCONN)
 437                         *system_name = SOMAXCONN;
 438                         break;
 439 #endif
 440                 default:
 441                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at Socket level", mono_name);
 442                         return(-1);
 443                 }
 444                 break;
 445
 446         case SocketOptionLevel_IP:
 447 #ifdef HAVE_SOL_IP
 448                 *system_level = SOL_IP;
 449 #else
 450                 if (1) {
 451                         static int cached = 0;
 452                         static int proto;
 453
 454                         if (!cached) {
 455                                 struct protoent *pent;
 456
 457                                 pent = getprotobyname ("IP");
 458                                 proto = pent ? pent->p_proto : 0 /* 0 a good default value?? */;
 459                                 cached = 1;
 460                         }
 461
 462                         *system_level = proto;
 463                 }
 464 #endif /* HAVE_SOL_IP */
 465
 466                 switch(mono_name) {
 467                 case SocketOptionName_IPOptions:
 468                         *system_name = IP_OPTIONS;
 469                         break;
 470 #ifdef IP_HDRINCL
 471                 case SocketOptionName_HeaderIncluded:
 472                         *system_name = IP_HDRINCL;
 473                         break;
 474 #endif
 475 #ifdef IP_TOS
 476                 case SocketOptionName_TypeOfService:
 477                         *system_name = IP_TOS;
 478                         break;
 479 #endif
 480 #ifdef IP_TTL
 481                 case SocketOptionName_IpTimeToLive:
 482                         *system_name = IP_TTL;
 483                         break;
 484 #endif
 485                 case SocketOptionName_MulticastInterface:
 486                         *system_name = IP_MULTICAST_IF;
 487                         break;
 488                 case SocketOptionName_MulticastTimeToLive:
 489                         *system_name = IP_MULTICAST_TTL;
 490                         break;
 491                 case SocketOptionName_MulticastLoopback:
 492                         *system_name = IP_MULTICAST_LOOP;
 493                         break;
 494                 case SocketOptionName_AddMembership:
 495                         *system_name = IP_ADD_MEMBERSHIP;
 496                         break;
 497                 case SocketOptionName_DropMembership:
 498                         *system_name = IP_DROP_MEMBERSHIP;
 499                         break;
 500 #ifdef HAVE_IP_PKTINFO
 501                 case SocketOptionName_PacketInformation:
 502                         *system_name = IP_PKTINFO;
 503                         break;
 504 #endif /* HAVE_IP_PKTINFO */
 505
 506                 case SocketOptionName_DontFragment:
 507 #ifdef HAVE_IP_DONTFRAGMENT
 508                         *system_name = IP_DONTFRAGMENT;
 509                         break;
 510 #elif defined HAVE_IP_MTU_DISCOVER
 511                         /* Not quite the same */
 512                         *system_name = IP_MTU_DISCOVER;
 513                         break;
 514 #else
 515                         /* If the flag is not available on this system, we can ignore this error */
 516                         return (-2);
 517 #endif /* HAVE_IP_DONTFRAGMENT */
 518                 case SocketOptionName_AddSourceMembership:
 519                 case SocketOptionName_DropSourceMembership:
 520                 case SocketOptionName_BlockSource:
 521                 case SocketOptionName_UnblockSource:
 522                         /* Can't figure out how to map these, so fall
 523                          * through
 524                          */
 525                 default:
 526                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IP level", mono_name);
 527                         return(-1);
 528                 }
 529                 break;
 530
 531 #ifdef AF_INET6
 532         case SocketOptionLevel_IPv6:
 533 #ifdef HAVE_SOL_IPV6
 534                 *system_level = SOL_IPV6;
 535 #else
 536                 if (1) {
 537                         static int cached = 0;
 538                         static int proto;
 539
 540                         if (!cached) {
 541                                 struct protoent *pent;
 542
 543                                 pent = getprotobyname ("IPV6");
 544                                 proto = pent ? pent->p_proto : 41 /* 41 a good default value?? */;
 545                                 cached = 1;
 546                         }
 547
 548                         *system_level = proto;
 549                 }
 550 #endif /* HAVE_SOL_IPV6 */
 551
 552                 switch(mono_name) {
 553                 case SocketOptionName_IpTimeToLive:
 554                         *system_name = IPV6_UNICAST_HOPS;
 555                         break;
 556                 case SocketOptionName_MulticastInterface:
 557                         *system_name = IPV6_MULTICAST_IF;
 558                         break;
 559                 case SocketOptionName_MulticastTimeToLive:
 560                         *system_name = IPV6_MULTICAST_HOPS;
 561                         break;
 562                 case SocketOptionName_MulticastLoopback:
 563                         *system_name = IPV6_MULTICAST_LOOP;
 564                         break;
 565                 case SocketOptionName_AddMembership:
 566                         *system_name = IPV6_JOIN_GROUP;
 567                         break;
 568                 case SocketOptionName_DropMembership:
 569                         *system_name = IPV6_LEAVE_GROUP;
 570                         break;
 571                 case SocketOptionName_PacketInformation:
 572 #ifdef HAVE_IPV6_PKTINFO
 573                         *system_name = IPV6_PKTINFO;
 574 #endif
 575                         break;
 576                 case SocketOptionName_HeaderIncluded:
 577                 case SocketOptionName_IPOptions:
 578                 case SocketOptionName_TypeOfService:
 579                 case SocketOptionName_DontFragment:
 580                 case SocketOptionName_AddSourceMembership:
 581                 case SocketOptionName_DropSourceMembership:
 582                 case SocketOptionName_BlockSource:
 583                 case SocketOptionName_UnblockSource:
 584                         /* Can't figure out how to map these, so fall
 585                          * through
 586                          */
 587                 default:
 588                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IPv6 level", mono_name);
 589                         return(-1);
 590                 }
 591
 592                 break;  /* SocketOptionLevel_IPv6 */
 593 #endif
 594
 595         case SocketOptionLevel_Tcp:
 596 #ifdef HAVE_SOL_TCP
 597                 *system_level = SOL_TCP;
 598 #else
 599                 if (1) {
 600                         static int cached = 0;
 601                         static int proto;
 602
 603                         if (!cached) {
 604                                 struct protoent *pent;
 605
 606                                 pent = getprotobyname ("TCP");
 607                                 proto = pent ? pent->p_proto : 6 /* is 6 a good default value?? */;
 608                                 cached = 1;
 609                         }
 610
 611                         *system_level = proto;
 612                 }
 613 #endif /* HAVE_SOL_TCP */
 614
 615                 switch(mono_name) {
 616                 case SocketOptionName_NoDelay:
 617                         *system_name = TCP_NODELAY;
 618                         break;
 619 #if 0
 620                         /* The documentation is talking complete
 621                          * bollocks here: rfc-1222 is titled
 622                          * 'Advancing the NSFNET Routing Architecture'
 623                          * and doesn't mention either of the words
 624                          * "expedite" or "urgent".
 625                          */
 626                 case SocketOptionName_BsdUrgent:
 627                 case SocketOptionName_Expedited:
 628 #endif
 629                 default:
 630                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at TCP level", mono_name);
 631                         return(-1);
 632                 }
 633                 break;
 634
 635         case SocketOptionLevel_Udp:
 636                 g_warning("System.Net.Sockets.SocketOptionLevel has unsupported value 0x%x", mono_level);
 637
 638                 switch(mono_name) {
 639                 case SocketOptionName_NoChecksum:
 640                 case SocketOptionName_ChecksumCoverage:
 641                 default:
 642                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at UDP level", mono_name);
 643                         return(-1);
 644                 }
 645                 return(-1);
 646                 break;
 647
 648         default:
 649                 g_warning("System.Net.Sockets.SocketOptionLevel has unknown value 0x%x", mono_level);
 650                 return(-1);
 651         }
 652
 653         return(0);
 654 }
 655
 656 static MonoImage *get_socket_assembly (void)
 657 {
 658         static const char *version = NULL;
 659         static gboolean moonlight;
 660         static MonoImage *socket_assembly = NULL;
 661
 662         if (version == NULL) {
 663                 version = mono_get_runtime_info ()->framework_version;
 664                 moonlight = !strcmp (version, "2.1");
 665         }
 666
 667         if (socket_assembly == NULL) {
 668                 if (moonlight) {
 669                         socket_assembly = mono_image_loaded ("System.Net");
 670                         if (!socket_assembly) {
 671                                 MonoAssembly *sa = mono_assembly_open ("System.Net.dll", NULL);
 672
 673                                 if (!sa) {
 674                                         g_assert_not_reached ();
 675                                 } else {
 676                                         socket_assembly = mono_assembly_get_image (sa);
 677                                 }
 678                         }
 679                 } else {
 680                         socket_assembly = mono_image_loaded ("System");
 681                         if (!socket_assembly) {
 682                                 MonoAssembly *sa = mono_assembly_open ("System.dll", NULL);
 683
 684                                 if (!sa) {
 685                                         g_assert_not_reached ();
 686                                 } else {
 687                                         socket_assembly = mono_assembly_get_image (sa);
 688                                 }
 689                         }
 690                 }
 691         }
 692
 693         return(socket_assembly);
 694 }
 695
 696 #ifdef AF_INET6
 697 static gint32 get_family_hint(void)
 698 {
 699         MonoDomain *domain = mono_domain_get ();
 700
 701         if (!domain->inet_family_hint) {
 702                 MonoClass *socket_class;
 703                 MonoClassField *ipv6_field, *ipv4_field;
 704                 gint32 ipv6_enabled = -1, ipv4_enabled = -1;
 705                 MonoVTable *vtable;
 706
 707                 socket_class = mono_class_from_name (get_socket_assembly (), "System.Net.Sockets", "Socket");
 708                 ipv4_field = mono_class_get_field_from_name (socket_class, "ipv4Supported");
 709                 ipv6_field = mono_class_get_field_from_name (socket_class, "ipv6Supported");
 710                 vtable = mono_class_vtable (mono_domain_get (), socket_class);
 711                 g_assert (vtable);
 712                 mono_runtime_class_init (vtable);
 713
 714                 mono_field_static_get_value (vtable, ipv4_field, &ipv4_enabled);
 715                 mono_field_static_get_value (vtable, ipv6_field, &ipv6_enabled);
 716
 717                 mono_domain_lock (domain);
 718                 if (ipv4_enabled == 1 && ipv6_enabled == 1) {
 719                         domain->inet_family_hint = 1;
 720                 } else if (ipv4_enabled == 1) {
 721                         domain->inet_family_hint = 2;
 722                 } else {
 723                         domain->inet_family_hint = 3;
 724                 }
 725                 mono_domain_unlock (domain);
 726         }
 727         switch (domain->inet_family_hint) {
 728         case 1: return PF_UNSPEC;
 729         case 2: return PF_INET;
 730         case 3: return PF_INET6;
 731         default:
 732                 return PF_UNSPEC;
 733         }
 734 }
 735 #endif
 736
 737 gpointer ves_icall_System_Net_Sockets_Socket_Socket_internal(MonoObject *this, gint32 family, gint32 type, gint32 proto, gint32 *error)
 738 {
 739         SOCKET sock;
 740         gint32 sock_family;
 741         gint32 sock_proto;
 742         gint32 sock_type;
 743
 744         MONO_ARCH_SAVE_REGS;
 745
 746         *error = 0;
 747
 748         sock_family=convert_family(family);
 749         if(sock_family==-1) {
 750                 *error = WSAEAFNOSUPPORT;
 751                 return(NULL);
 752         }
 753
 754         sock_proto=convert_proto(proto);
 755         if(sock_proto==-1) {
 756                 *error = WSAEPROTONOSUPPORT;
 757                 return(NULL);
 758         }
 759
 760         sock_type=convert_type(type);
 761         if(sock_type==-1) {
 762                 *error = WSAESOCKTNOSUPPORT;
 763                 return(NULL);
 764         }
 765
 766         sock = _wapi_socket (sock_family, sock_type, sock_proto,
 767                              NULL, 0, WSA_FLAG_OVERLAPPED);
 768
 769         if(sock==INVALID_SOCKET) {
 770                 *error = WSAGetLastError ();
 771                 return(NULL);
 772         }
 773
 774         if (sock_family == AF_INET && sock_type == SOCK_DGRAM) {
 775                 return (GUINT_TO_POINTER (sock));
 776         }
 777
 778 #ifdef AF_INET6
 779         if (sock_family == AF_INET6 && sock_type == SOCK_DGRAM) {
 780                 return (GUINT_TO_POINTER (sock));
 781         }
 782 #endif
 783
 784         return(GUINT_TO_POINTER (sock));
 785 }
 786
 787 /* FIXME: the SOCKET parameter (here and in other functions in this
 788  * file) is really an IntPtr which needs to be converted to a guint32.
 789  */
 790 void ves_icall_System_Net_Sockets_Socket_Close_internal(SOCKET sock,
 791                                                         gint32 *error)
 792 {
 793         MONO_ARCH_SAVE_REGS;
 794
 795         LOGDEBUG (g_message ("%s: closing 0x%x", __func__, sock));
 796
 797         *error = 0;
 798
 799         /* Clear any pending work item from this socket if the underlying
 800          * polling system does not notify when the socket is closed */
 801         mono_thread_pool_remove_socket (GPOINTER_TO_INT (sock));
 802         closesocket(sock);
 803 }
 804
 805 gint32 ves_icall_System_Net_Sockets_SocketException_WSAGetLastError_internal(void)
 806 {
 807         MONO_ARCH_SAVE_REGS;
 808
 809         LOGDEBUG (g_message("%s: returning %d", __func__, WSAGetLastError()));
 810
 811         return(WSAGetLastError());
 812 }
 813
 814 gint32 ves_icall_System_Net_Sockets_Socket_Available_internal(SOCKET sock,
 815                                                               gint32 *error)
 816 {
 817         int ret;
 818         int amount;
 819
 820         MONO_ARCH_SAVE_REGS;
 821
 822         *error = 0;
 823
 824         ret=ioctlsocket(sock, FIONREAD, &amount);
 825         if(ret==SOCKET_ERROR) {
 826                 *error = WSAGetLastError ();
 827                 return(0);
 828         }
 829
 830         return(amount);
 831 }
 832
 833 void ves_icall_System_Net_Sockets_Socket_Blocking_internal(SOCKET sock,
 834                                                            gboolean block,
 835                                                            gint32 *error)
 836 {
 837         int ret;
 838
 839         MONO_ARCH_SAVE_REGS;
 840
 841         *error = 0;
 842
 843         /*
 844          * block == TRUE/FALSE means we will block/not block.
 845          * But the ioctlsocket call takes TRUE/FALSE for non-block/block
 846          */
 847         block = !block;
 848
 849         ret = ioctlsocket (sock, FIONBIO, (gulong *) &block);
 850         if(ret==SOCKET_ERROR) {
 851                 *error = WSAGetLastError ();
 852         }
 853 }
 854
 855 gpointer ves_icall_System_Net_Sockets_Socket_Accept_internal(SOCKET sock,
 856                                                              gint32 *error,
 857                                                              gboolean blocking)
 858 {
 859         SOCKET newsock;
 860
 861         MONO_ARCH_SAVE_REGS;
 862
 863         *error = 0;
 864 #ifdef HOST_WIN32
 865         {
 866                 MonoInternalThread* curthread = mono_thread_internal_current ();
 867                 curthread->interrupt_on_stop = (gpointer)TRUE;
 868                 newsock = _wapi_accept (sock, NULL, 0);
 869                 curthread->interrupt_on_stop = (gpointer)FALSE;
 870         }
 871 #else
 872         newsock = _wapi_accept (sock, NULL, 0);
 873 #endif
 874         if(newsock==INVALID_SOCKET) {
 875                 *error = WSAGetLastError ();
 876                 return(NULL);
 877         }
 878
 879         return(GUINT_TO_POINTER (newsock));
 880 }
 881
 882 void ves_icall_System_Net_Sockets_Socket_Listen_internal(SOCKET sock,
 883                                                          guint32 backlog,
 884                                                          gint32 *error)
 885 {
 886         int ret;
 887
 888         MONO_ARCH_SAVE_REGS;
 889
 890         *error = 0;
 891
 892         ret = _wapi_listen (sock, backlog);
 893         if(ret==SOCKET_ERROR) {
 894                 *error = WSAGetLastError ();
 895         }
 896 }
 897
 898 static MonoObject *create_object_from_sockaddr(struct sockaddr *saddr,
 899                                                int sa_size, gint32 *error)
 900 {
 901         MonoDomain *domain = mono_domain_get ();
 902         MonoObject *sockaddr_obj;
 903         MonoClass *sockaddr_class;
 904         MonoClassField *field;
 905         MonoArray *data;
 906         MonoAddressFamily family;
 907
 908         /* Build a System.Net.SocketAddress object instance */
 909         sockaddr_class=mono_class_from_name_cached (get_socket_assembly (), "System.Net", "SocketAddress");
 910         sockaddr_obj=mono_object_new(domain, sockaddr_class);
 911
 912         /* Locate the SocketAddress data buffer in the object */
 913         field=mono_class_get_field_from_name_cached (sockaddr_class, "data");
 914
 915         /* Make sure there is space for the family and size bytes */
 916 #ifdef HAVE_SYS_UN_H
 917         if (saddr->sa_family == AF_UNIX) {
 918                 /* sa_len includes the entire sockaddr size, so we don't need the
 919                  * N bytes (sizeof (unsigned short)) of the family. */
 920                 data=mono_array_new_cached(domain, mono_get_byte_class (), sa_size);
 921         } else
 922 #endif
 923         {
 924                 /* May be the +2 here is too conservative, as sa_len returns
 925                  * the length of the entire sockaddr_in/in6, including
 926                  * sizeof (unsigned short) of the family */
 927                 data=mono_array_new_cached(domain, mono_get_byte_class (), sa_size+2);
 928         }
 929
 930         /* The data buffer is laid out as follows:
 931          * bytes 0 and 1 are the address family
 932          * bytes 2 and 3 are the port info
 933          * the rest is the address info
 934          */
 935
 936         family=convert_to_mono_family(saddr->sa_family);
 937         if(family==AddressFamily_Unknown) {
 938                 *error = WSAEAFNOSUPPORT;
 939                 return(NULL);
 940         }
 941
 942         mono_array_set(data, guint8, 0, family & 0x0FF);
 943         mono_array_set(data, guint8, 1, (family >> 8) & 0x0FF);
 944
 945         if(saddr->sa_family==AF_INET) {
 946                 struct sockaddr_in *sa_in=(struct sockaddr_in *)saddr;
 947                 guint16 port=ntohs(sa_in->sin_port);
 948                 guint32 address=ntohl(sa_in->sin_addr.s_addr);
 949
 950                 if(sa_size<8) {
 951                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 952                 }
 953
 954                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 955                 mono_array_set(data, guint8, 3, (port) & 0xff);
 956                 mono_array_set(data, guint8, 4, (address>>24) & 0xff);
 957                 mono_array_set(data, guint8, 5, (address>>16) & 0xff);
 958                 mono_array_set(data, guint8, 6, (address>>8) & 0xff);
 959                 mono_array_set(data, guint8, 7, (address) & 0xff);
 960
 961                 mono_field_set_value (sockaddr_obj, field, data);
 962
 963                 return(sockaddr_obj);
 964 #ifdef AF_INET6
 965         } else if (saddr->sa_family == AF_INET6) {
 966                 struct sockaddr_in6 *sa_in=(struct sockaddr_in6 *)saddr;
 967                 int i;
 968
 969                 guint16 port=ntohs(sa_in->sin6_port);
 970
 971                 if(sa_size<28) {
 972                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 973                 }
 974
 975                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 976                 mono_array_set(data, guint8, 3, (port) & 0xff);
 977
 978                 for(i=0; i<16; i++) {
 979                         mono_array_set(data, guint8, 8+i,
 980                                        sa_in->sin6_addr.s6_addr[i]);
 981                 }
 982
 983                 mono_array_set(data, guint8, 24, sa_in->sin6_scope_id & 0xff);
 984                 mono_array_set(data, guint8, 25,
 985                                (sa_in->sin6_scope_id >> 8) & 0xff);
 986                 mono_array_set(data, guint8, 26,
 987                                (sa_in->sin6_scope_id >> 16) & 0xff);
 988                 mono_array_set(data, guint8, 27,
 989                                (sa_in->sin6_scope_id >> 24) & 0xff);
 990
 991                 mono_field_set_value (sockaddr_obj, field, data);
 992
 993                 return(sockaddr_obj);
 994 #endif
 995 #ifdef HAVE_SYS_UN_H
 996         } else if (saddr->sa_family == AF_UNIX) {
 997                 int i;
 998
 999                 for (i = 0; i < sa_size; i++) {
1000                         mono_array_set (data, guint8, i+2, saddr->sa_data[i]);
1001                 }
1002
1003                 mono_field_set_value (sockaddr_obj, field, data);
1004
1005                 return sockaddr_obj;
1006 #endif
1007         } else {
1008                 *error = WSAEAFNOSUPPORT;
1009                 return(NULL);
1010         }
1011 }
1012
1013 extern MonoObject *ves_icall_System_Net_Sockets_Socket_LocalEndPoint_internal(SOCKET sock, gint32 *error)
1014 {
1015         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1016         socklen_t salen;
1017         int ret;
1018
1019         MONO_ARCH_SAVE_REGS;
1020
1021         *error = 0;
1022
1023         salen=sizeof(sa);
1024         ret = _wapi_getsockname (sock, (struct sockaddr *)sa, &salen);
1025
1026         if(ret==SOCKET_ERROR) {
1027                 *error = WSAGetLastError ();
1028                 return(NULL);
1029         }
1030
1031         LOGDEBUG (g_message("%s: bound to %s port %d", __func__, inet_ntoa(((struct sockaddr_in *)&sa)->sin_addr), ntohs(((struct sockaddr_in *)&sa)->sin_port)));
1032
1033         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1034                                            error));
1035 }
1036
1037 extern MonoObject *ves_icall_System_Net_Sockets_Socket_RemoteEndPoint_internal(SOCKET sock, gint32 *error)
1038 {
1039         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1040         socklen_t salen;
1041         int ret;
1042
1043         MONO_ARCH_SAVE_REGS;
1044
1045         *error = 0;
1046
1047         salen=sizeof(sa);
1048         ret = _wapi_getpeername (sock, (struct sockaddr *)sa, &salen);
1049
1050         if(ret==SOCKET_ERROR) {
1051                 *error = WSAGetLastError ();
1052                 return(NULL);
1053         }
1054
1055         LOGDEBUG (g_message("%s: connected to %s port %d", __func__, inet_ntoa(((struct sockaddr_in *)&sa)->sin_addr), ntohs(((struct sockaddr_in *)&sa)->sin_port)));
1056
1057         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1058                                            error));
1059 }
1060
1061 static struct sockaddr *create_sockaddr_from_object(MonoObject *saddr_obj,
1062                                                     socklen_t *sa_size,
1063                                                     gint32 *error)
1064 {
1065         MonoClassField *field;
1066         MonoArray *data;
1067         gint32 family;
1068         int len;
1069
1070         /* Dig the SocketAddress data buffer out of the object */
1071         field=mono_class_get_field_from_name(saddr_obj->vtable->klass, "data");
1072         data=*(MonoArray **)(((char *)saddr_obj) + field->offset);
1073
1074         /* The data buffer is laid out as follows:
1075          * byte 0 is the address family low byte
1076          * byte 1 is the address family high byte
1077          * INET:
1078          *      bytes 2 and 3 are the port info
1079          *      the rest is the address info
1080          * UNIX:
1081          *      the rest is the file name
1082          */
1083         len = mono_array_length (data);
1084         if (len < 2) {
1085                 mono_raise_exception (mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
1086         }
1087
1088         family = convert_family (mono_array_get (data, guint8, 0) + (mono_array_get (data, guint8, 1) << 8));
1089         if (family == AF_INET) {
1090                 struct sockaddr_in *sa;
1091                 guint16 port;
1092                 guint32 address;
1093
1094                 if (len < 8) {
1095                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1096                 }
1097
1098                 sa = g_new0 (struct sockaddr_in, 1);
1099                 port = (mono_array_get (data, guint8, 2) << 8) +
1100                         mono_array_get (data, guint8, 3);
1101                 address = (mono_array_get (data, guint8, 4) << 24) +
1102                         (mono_array_get (data, guint8, 5) << 16 ) +
1103                         (mono_array_get (data, guint8, 6) << 8) +
1104                         mono_array_get (data, guint8, 7);
1105
1106                 sa->sin_family = family;
1107                 sa->sin_addr.s_addr = htonl (address);
1108                 sa->sin_port = htons (port);
1109
1110                 *sa_size = sizeof(struct sockaddr_in);
1111                 return((struct sockaddr *)sa);
1112
1113 #ifdef AF_INET6
1114         } else if (family == AF_INET6) {
1115                 struct sockaddr_in6 *sa;
1116                 int i;
1117                 guint16 port;
1118                 guint32 scopeid;
1119
1120                 if (len < 28) {
1121                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1122                 }
1123
1124                 sa = g_new0 (struct sockaddr_in6, 1);
1125                 port = mono_array_get (data, guint8, 3) +
1126                         (mono_array_get (data, guint8, 2) << 8);
1127                 scopeid = mono_array_get (data, guint8, 24) +
1128                         (mono_array_get (data, guint8, 25) << 8) +
1129                         (mono_array_get (data, guint8, 26) << 16) +
1130                         (mono_array_get (data, guint8, 27) << 24);
1131
1132                 sa->sin6_family = family;
1133                 sa->sin6_port = htons (port);
1134                 sa->sin6_scope_id = scopeid;
1135
1136                 for(i=0; i<16; i++) {
1137                         sa->sin6_addr.s6_addr[i] = mono_array_get (data, guint8, 8+i);
1138                 }
1139
1140                 *sa_size = sizeof(struct sockaddr_in6);
1141                 return((struct sockaddr *)sa);
1142 #endif
1143 #ifdef HAVE_SYS_UN_H
1144         } else if (family == AF_UNIX) {
1145                 struct sockaddr_un *sock_un;
1146                 int i;
1147
1148                 /* Need a byte for the '\0' terminator/prefix, and the first
1149                  * two bytes hold the SocketAddress family
1150                  */
1151                 if (len - 2 >= MONO_SIZEOF_SUNPATH) {
1152                         mono_raise_exception (mono_get_exception_index_out_of_range ());
1153                 }
1154
1155                 sock_un = g_new0 (struct sockaddr_un, 1);
1156
1157                 sock_un->sun_family = family;
1158                 for (i = 0; i < len - 2; i++) {
1159                         sock_un->sun_path [i] = mono_array_get (data, guint8,
1160                                                                 i + 2);
1161                 }
1162
1163                 *sa_size = len;
1164
1165                 return (struct sockaddr *)sock_un;
1166 #endif
1167         } else {
1168                 *error = WSAEAFNOSUPPORT;
1169                 return(0);
1170         }
1171 }
1172
1173 extern void ves_icall_System_Net_Sockets_Socket_Bind_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1174 {
1175         struct sockaddr *sa;
1176         socklen_t sa_size;
1177         int ret;
1178
1179         MONO_ARCH_SAVE_REGS;
1180
1181         *error = 0;
1182
1183         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1184         if (*error != 0) {
1185                 return;
1186         }
1187
1188         LOGDEBUG (g_message("%s: binding to %s port %d", __func__, inet_ntoa(((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port)));
1189
1190         ret = _wapi_bind (sock, sa, sa_size);
1191         if(ret==SOCKET_ERROR) {
1192                 *error = WSAGetLastError ();
1193         }
1194
1195         g_free(sa);
1196 }
1197
1198 enum {
1199         SelectModeRead,
1200         SelectModeWrite,
1201         SelectModeError
1202 };
1203
1204 MonoBoolean
1205 ves_icall_System_Net_Sockets_Socket_Poll_internal (SOCKET sock, gint mode,
1206                                                    gint timeout, gint32 *error)
1207 {
1208         MonoInternalThread *thread = NULL;
1209         mono_pollfd *pfds;
1210         int ret;
1211         time_t start;
1212
1213
1214         MONO_ARCH_SAVE_REGS;
1215
1216         pfds = g_new0 (mono_pollfd, 1);
1217         pfds[0].fd = GPOINTER_TO_INT (sock);
1218         pfds[0].events = (mode == SelectModeRead) ? MONO_POLLIN :
1219                 (mode == SelectModeWrite) ? MONO_POLLOUT :
1220                 (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL);
1221
1222         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1223         start = time (NULL);
1224         do {
1225                 *error = 0;
1226
1227                 ret = mono_poll (pfds, 1, timeout);
1228                 if (timeout > 0 && ret < 0) {
1229                         int err = errno;
1230                         int sec = time (NULL) - start;
1231
1232                         timeout -= sec * 1000;
1233                         if (timeout < 0) {
1234                                 timeout = 0;
1235                         }
1236
1237                         errno = err;
1238                 }
1239
1240                 if (ret == -1 && errno == EINTR) {
1241                         int leave = 0;
1242
1243                         if (thread == NULL) {
1244                                 thread = mono_thread_internal_current ();
1245                         }
1246
1247                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1248
1249                         if (leave != 0) {
1250                                 g_free (pfds);
1251                                 return(FALSE);
1252                         } else {
1253                                 /* Suspend requested? */
1254                                 mono_thread_interruption_checkpoint ();
1255                         }
1256                         errno = EINTR;
1257                 }
1258         } while (ret == -1 && errno == EINTR);
1259
1260         if (ret == -1) {
1261 #ifdef HOST_WIN32
1262                 *error = WSAGetLastError ();
1263 #else
1264                 *error = errno_to_WSA (errno, __func__);
1265 #endif
1266                 g_free (pfds);
1267                 return(FALSE);
1268         }
1269
1270         g_free (pfds);
1271
1272         if (ret == 0) {
1273                 return(FALSE);
1274         } else {
1275                 return (TRUE);
1276         }
1277 }
1278
1279 extern void ves_icall_System_Net_Sockets_Socket_Connect_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1280 {
1281         struct sockaddr *sa;
1282         socklen_t sa_size;
1283         int ret;
1284
1285         MONO_ARCH_SAVE_REGS;
1286
1287         *error = 0;
1288
1289         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1290         if (*error != 0) {
1291                 return;
1292         }
1293
1294         LOGDEBUG (g_message("%s: connecting to %s port %d", __func__, inet_ntoa(((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port)));
1295
1296         ret = _wapi_connect (sock, sa, sa_size);
1297         if(ret==SOCKET_ERROR) {
1298                 *error = WSAGetLastError ();
1299         }
1300
1301         g_free(sa);
1302 }
1303
1304 /* These #defines from mswsock.h from wine.  Defining them here allows
1305  * us to build this file on a mingw box that doesn't know the magic
1306  * numbers, but still run on a newer windows box that does.
1307  */
1308 #ifndef WSAID_DISCONNECTEX
1309 #define WSAID_DISCONNECTEX {0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
1310 typedef BOOL (WINAPI *LPFN_DISCONNECTEX)(SOCKET, LPOVERLAPPED, DWORD, DWORD);
1311 #endif
1312
1313 #ifndef WSAID_TRANSMITFILE
1314 #define WSAID_TRANSMITFILE {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
1315 typedef BOOL (WINAPI *LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
1316 #endif
1317
1318 extern void ves_icall_System_Net_Sockets_Socket_Disconnect_internal(SOCKET sock, MonoBoolean reuse, gint32 *error)
1319 {
1320         int ret;
1321         glong output_bytes = 0;
1322         GUID disco_guid = WSAID_DISCONNECTEX;
1323         GUID trans_guid = WSAID_TRANSMITFILE;
1324         LPFN_DISCONNECTEX _wapi_disconnectex = NULL;
1325         LPFN_TRANSMITFILE _wapi_transmitfile = NULL;
1326         gboolean bret;
1327
1328         MONO_ARCH_SAVE_REGS;
1329
1330         *error = 0;
1331
1332         LOGDEBUG (g_message("%s: disconnecting from socket %p (reuse %d)", __func__, sock, reuse));
1333
1334         /* I _think_ the extension function pointers need to be looked
1335          * up for each socket.  FIXME: check the best way to store
1336          * pointers to functions in managed objects that still works
1337          * on 64bit platforms.
1338          */
1339         ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1340                         (void *)&disco_guid, sizeof(GUID),
1341                         (void *)&_wapi_disconnectex, sizeof(void *),
1342                         &output_bytes, NULL, NULL);
1343         if (ret != 0) {
1344                 /* make sure that WSAIoctl didn't put crap in the
1345                  * output pointer
1346                  */
1347                 _wapi_disconnectex = NULL;
1348
1349                 /* Look up the TransmitFile extension function pointer
1350                  * instead of calling TransmitFile() directly, because
1351                  * apparently "Several of the extension functions have
1352                  * been available since WinSock 1.1 and are exported
1353                  * from MSWsock.dll, however it's not advisable to
1354                  * link directly to this dll as this ties you to the
1355                  * Microsoft WinSock provider. A provider neutral way
1356                  * of accessing these extension functions is to load
1357                  * them dynamically via WSAIoctl using the
1358                  * SIO_GET_EXTENSION_FUNCTION_POINTER op code. This
1359                  * should, theoretically, allow you to access these
1360                  * functions from any provider that supports them..."
1361                  * (http://www.codeproject.com/internet/jbsocketserver3.asp)
1362                  */
1363                 ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1364                                 (void *)&trans_guid, sizeof(GUID),
1365                                 (void *)&_wapi_transmitfile, sizeof(void *),
1366                                 &output_bytes, NULL, NULL);
1367                 if (ret != 0) {
1368                         _wapi_transmitfile = NULL;
1369                 }
1370         }
1371
1372         if (_wapi_disconnectex != NULL) {
1373                 bret = _wapi_disconnectex (sock, NULL, TF_REUSE_SOCKET, 0);
1374         } else if (_wapi_transmitfile != NULL) {
1375                 bret = _wapi_transmitfile (sock, NULL, 0, 0, NULL, NULL,
1376                                            TF_DISCONNECT | TF_REUSE_SOCKET);
1377         } else {
1378                 *error = ERROR_NOT_SUPPORTED;
1379                 return;
1380         }
1381
1382         if (bret == FALSE) {
1383                 *error = WSAGetLastError ();
1384         }
1385 }
1386
1387 gint32 ves_icall_System_Net_Sockets_Socket_Receive_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1388 {
1389         int ret;
1390         guchar *buf;
1391         gint32 alen;
1392         int recvflags=0;
1393
1394         MONO_ARCH_SAVE_REGS;
1395
1396         *error = 0;
1397
1398         alen = mono_array_length (buffer);
1399         if (offset > alen - count) {
1400                 return(0);
1401         }
1402
1403         buf=mono_array_addr(buffer, guchar, offset);
1404
1405         recvflags = convert_socketflags (flags);
1406         if (recvflags == -1) {
1407                 *error = WSAEOPNOTSUPP;
1408                 return (0);
1409         }
1410
1411 #ifdef HOST_WIN32
1412         {
1413                 MonoInternalThread* curthread = mono_thread_internal_current ();
1414                 curthread->interrupt_on_stop = (gpointer)TRUE;
1415                 ret = _wapi_recv (sock, buf, count, recvflags);
1416                 curthread->interrupt_on_stop = (gpointer)FALSE;
1417         }
1418 #else
1419         ret = _wapi_recv (sock, buf, count, recvflags);
1420 #endif
1421
1422         if(ret==SOCKET_ERROR) {
1423                 *error = WSAGetLastError ();
1424                 return(0);
1425         }
1426
1427         return(ret);
1428 }
1429
1430 gint32 ves_icall_System_Net_Sockets_Socket_Receive_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1431 {
1432         int ret, count;
1433         DWORD recv;
1434         WSABUF *wsabufs;
1435         DWORD recvflags = 0;
1436
1437         MONO_ARCH_SAVE_REGS;
1438
1439         *error = 0;
1440
1441         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1442         count = mono_array_length (buffers);
1443
1444         recvflags = convert_socketflags (flags);
1445         if (recvflags == -1) {
1446                 *error = WSAEOPNOTSUPP;
1447                 return(0);
1448         }
1449
1450         ret = WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL);
1451         if (ret == SOCKET_ERROR) {
1452                 *error = WSAGetLastError ();
1453                 return(0);
1454         }
1455
1456         return(recv);
1457 }
1458
1459 gint32 ves_icall_System_Net_Sockets_Socket_RecvFrom_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject **sockaddr, gint32 *error)
1460 {
1461         int ret;
1462         guchar *buf;
1463         gint32 alen;
1464         int recvflags=0;
1465         struct sockaddr *sa;
1466         socklen_t sa_size;
1467
1468         MONO_ARCH_SAVE_REGS;
1469
1470         *error = 0;
1471
1472         alen = mono_array_length (buffer);
1473         if (offset > alen - count) {
1474                 return(0);
1475         }
1476
1477         sa=create_sockaddr_from_object(*sockaddr, &sa_size, error);
1478         if (*error != 0) {
1479                 return(0);
1480         }
1481
1482         buf=mono_array_addr(buffer, guchar, offset);
1483
1484         recvflags = convert_socketflags (flags);
1485         if (recvflags == -1) {
1486                 *error = WSAEOPNOTSUPP;
1487                 return (0);
1488         }
1489
1490         ret = _wapi_recvfrom (sock, buf, count, recvflags, sa, &sa_size);
1491         if(ret==SOCKET_ERROR) {
1492                 g_free(sa);
1493                 *error = WSAGetLastError ();
1494                 return(0);
1495         }
1496
1497         /* If we didn't get a socket size, then we're probably a
1498          * connected connection-oriented socket and the stack hasn't
1499          * returned the remote address. All we can do is return null.
1500          */
1501         if ( sa_size != 0 )
1502                 *sockaddr=create_object_from_sockaddr(sa, sa_size, error);
1503         else
1504                 *sockaddr=NULL;
1505
1506         g_free(sa);
1507
1508         return(ret);
1509 }
1510
1511 gint32 ves_icall_System_Net_Sockets_Socket_Send_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1512 {
1513         int ret;
1514         guchar *buf;
1515         gint32 alen;
1516         int sendflags=0;
1517
1518         MONO_ARCH_SAVE_REGS;
1519
1520         *error = 0;
1521
1522         alen = mono_array_length (buffer);
1523         if (offset > alen - count) {
1524                 return(0);
1525         }
1526
1527         LOGDEBUG (g_message("%s: alen: %d", __func__, alen));
1528
1529         buf=mono_array_addr(buffer, guchar, offset);
1530
1531         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1532
1533         sendflags = convert_socketflags (flags);
1534         if (sendflags == -1) {
1535                 *error = WSAEOPNOTSUPP;
1536                 return (0);
1537         }
1538
1539         ret = _wapi_send (sock, buf, count, sendflags);
1540         if(ret==SOCKET_ERROR) {
1541                 *error = WSAGetLastError ();
1542                 return(0);
1543         }
1544
1545         return(ret);
1546 }
1547
1548 gint32 ves_icall_System_Net_Sockets_Socket_Send_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1549 {
1550         int ret, count;
1551         DWORD sent;
1552         WSABUF *wsabufs;
1553         DWORD sendflags = 0;
1554
1555         MONO_ARCH_SAVE_REGS;
1556
1557         *error = 0;
1558
1559         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1560         count = mono_array_length (buffers);
1561
1562         sendflags = convert_socketflags (flags);
1563         if (sendflags == -1) {
1564                 *error = WSAEOPNOTSUPP;
1565                 return(0);
1566         }
1567
1568         ret = WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL);
1569         if (ret == SOCKET_ERROR) {
1570                 *error = WSAGetLastError ();
1571                 return(0);
1572         }
1573
1574         return(sent);
1575 }
1576
1577 gint32 ves_icall_System_Net_Sockets_Socket_SendTo_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject *sockaddr, gint32 *error)
1578 {
1579         int ret;
1580         guchar *buf;
1581         gint32 alen;
1582         int sendflags=0;
1583         struct sockaddr *sa;
1584         socklen_t sa_size;
1585
1586         MONO_ARCH_SAVE_REGS;
1587
1588         *error = 0;
1589
1590         alen = mono_array_length (buffer);
1591         if (offset > alen - count) {
1592                 return(0);
1593         }
1594
1595         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1596         if(*error != 0) {
1597                 return(0);
1598         }
1599
1600         LOGDEBUG (g_message("%s: alen: %d", __func__, alen));
1601
1602         buf=mono_array_addr(buffer, guchar, offset);
1603
1604         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1605
1606         sendflags = convert_socketflags (flags);
1607         if (sendflags == -1) {
1608                 *error = WSAEOPNOTSUPP;
1609                 return (0);
1610         }
1611
1612         ret = _wapi_sendto (sock, buf, count, sendflags, sa, sa_size);
1613         if(ret==SOCKET_ERROR) {
1614                 *error = WSAGetLastError ();
1615         }
1616
1617         g_free(sa);
1618
1619         return(ret);
1620 }
1621
1622 static SOCKET Socket_to_SOCKET(MonoObject *sockobj)
1623 {
1624         SOCKET sock;
1625         MonoClassField *field;
1626
1627         field=mono_class_get_field_from_name(sockobj->vtable->klass, "socket");
1628         sock=GPOINTER_TO_INT (*(gpointer *)(((char *)sockobj)+field->offset));
1629
1630         return(sock);
1631 }
1632
1633 #define POLL_ERRORS (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL)
1634 void ves_icall_System_Net_Sockets_Socket_Select_internal(MonoArray **sockets, gint32 timeout, gint32 *error)
1635 {
1636         MonoInternalThread *thread = NULL;
1637         MonoObject *obj;
1638         mono_pollfd *pfds;
1639         int nfds, idx;
1640         int ret;
1641         int i, count;
1642         int mode;
1643         MonoClass *sock_arr_class;
1644         MonoArray *socks;
1645         time_t start;
1646         uintptr_t socks_size;
1647
1648         MONO_ARCH_SAVE_REGS;
1649
1650         /* *sockets -> READ, null, WRITE, null, ERROR, null */
1651         count = mono_array_length (*sockets);
1652         nfds = count - 3; /* NULL separators */
1653         pfds = g_new0 (mono_pollfd, nfds);
1654         mode = idx = 0;
1655         for (i = 0; i < count; i++) {
1656                 obj = mono_array_get (*sockets, MonoObject *, i);
1657                 if (obj == NULL) {
1658                         mode++;
1659                         continue;
1660                 }
1661
1662                 if (idx >= nfds) {
1663                         /* The socket array was bogus */
1664                         g_free (pfds);
1665                         *error = WSAEFAULT;
1666                         return;
1667                 }
1668
1669                 pfds [idx].fd = Socket_to_SOCKET (obj);
1670                 pfds [idx].events = (mode == 0) ? MONO_POLLIN : (mode == 1) ? MONO_POLLOUT : POLL_ERRORS;
1671                 idx++;
1672         }
1673
1674         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1675         start = time (NULL);
1676         do {
1677                 *error = 0;
1678                 ret = mono_poll (pfds, nfds, timeout);
1679                 if (timeout > 0 && ret < 0) {
1680                         int err = errno;
1681                         int sec = time (NULL) - start;
1682
1683                         timeout -= sec * 1000;
1684                         if (timeout < 0)
1685                                 timeout = 0;
1686                         errno = err;
1687                 }
1688
1689                 if (ret == -1 && errno == EINTR) {
1690                         int leave = 0;
1691                         if (thread == NULL)
1692                                 thread = mono_thread_internal_current ();
1693
1694                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1695
1696                         if (leave != 0) {
1697                                 g_free (pfds);
1698                                 *sockets = NULL;
1699                                 return;
1700                         } else {
1701                                 /* Suspend requested? */
1702                                 mono_thread_interruption_checkpoint ();
1703                         }
1704                         errno = EINTR;
1705                 }
1706         } while (ret == -1 && errno == EINTR);
1707
1708         if (ret == -1) {
1709 #ifdef HOST_WIN32
1710                 *error = WSAGetLastError ();
1711 #else
1712                 *error = errno_to_WSA (errno, __func__);
1713 #endif
1714                 g_free (pfds);
1715                 return;
1716         }
1717
1718         if (ret == 0) {
1719                 g_free (pfds);
1720                 *sockets = NULL;
1721                 return;
1722         }
1723
1724         sock_arr_class= ((MonoObject *)*sockets)->vtable->klass;
1725         socks_size = ((uintptr_t)ret) + 3; /* space for the NULL delimiters */
1726         socks = mono_array_new_full (mono_domain_get (), sock_arr_class, &socks_size, NULL);
1727
1728         mode = idx = 0;
1729         for (i = 0; i < count && ret > 0; i++) {
1730                 mono_pollfd *pfd;
1731
1732                 obj = mono_array_get (*sockets, MonoObject *, i);
1733                 if (obj == NULL) {
1734                         mode++;
1735                         idx++;
1736                         continue;
1737                 }
1738
1739                 pfd = &pfds [i - mode];
1740                 if (pfd->revents == 0)
1741                         continue;
1742
1743                 ret--;
1744                 if (mode == 0 && (pfd->revents & (MONO_POLLIN | POLL_ERRORS)) != 0) {
1745                         mono_array_setref (socks, idx++, obj);
1746                 } else if (mode == 1 && (pfd->revents & (MONO_POLLOUT | POLL_ERRORS)) != 0) {
1747                         mono_array_setref (socks, idx++, obj);
1748                 } else if ((pfd->revents & POLL_ERRORS) != 0) {
1749                         mono_array_setref (socks, idx++, obj);
1750                 }
1751         }
1752
1753         *sockets = socks;
1754         g_free (pfds);
1755 }
1756
1757 static MonoObject* int_to_object (MonoDomain *domain, int val)
1758 {
1759         return mono_value_box (domain, mono_get_int32_class (), &val);
1760 }
1761
1762
1763 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_obj_internal(SOCKET sock, gint32 level, gint32 name, MonoObject **obj_val, gint32 *error)
1764 {
1765         int system_level;
1766         int system_name;
1767         int ret;
1768         int val;
1769         socklen_t valsize=sizeof(val);
1770         struct linger linger;
1771         socklen_t lingersize=sizeof(linger);
1772         int time_ms = 0;
1773         socklen_t time_ms_size = sizeof (time_ms);
1774 #ifdef SO_PEERCRED
1775         struct ucred cred;
1776         socklen_t credsize = sizeof(cred);
1777 #endif
1778         MonoDomain *domain=mono_domain_get();
1779         MonoObject *obj;
1780         MonoClass *obj_class;
1781         MonoClassField *field;
1782
1783         MONO_ARCH_SAVE_REGS;
1784
1785         *error = 0;
1786
1787         ret=convert_sockopt_level_and_name(level, name, &system_level,
1788                                            &system_name);
1789         if(ret==-1) {
1790                 *error = WSAENOPROTOOPT;
1791                 return;
1792         }
1793         if (ret == -2) {
1794                 *obj_val = int_to_object (domain, 0);
1795                 return;
1796         }
1797
1798         /* No need to deal with MulticastOption names here, because
1799          * you cant getsockopt AddMembership or DropMembership (the
1800          * int getsockopt will error, causing an exception)
1801          */
1802         switch(name) {
1803         case SocketOptionName_Linger:
1804         case SocketOptionName_DontLinger:
1805                 ret = _wapi_getsockopt(sock, system_level, system_name, &linger,
1806                                &lingersize);
1807                 break;
1808
1809         case SocketOptionName_SendTimeout:
1810         case SocketOptionName_ReceiveTimeout:
1811                 ret = _wapi_getsockopt (sock, system_level, system_name, (char *) &time_ms, &time_ms_size);
1812                 break;
1813
1814 #ifdef SO_PEERCRED
1815         case SocketOptionName_PeerCred:
1816                 ret = _wapi_getsockopt (sock, system_level, system_name, &cred,
1817                                         &credsize);
1818                 break;
1819 #endif
1820
1821         default:
1822                 ret = _wapi_getsockopt (sock, system_level, system_name, &val,
1823                                &valsize);
1824         }
1825
1826         if(ret==SOCKET_ERROR) {
1827                 *error = WSAGetLastError ();
1828                 return;
1829         }
1830
1831         switch(name) {
1832         case SocketOptionName_Linger:
1833                 /* build a System.Net.Sockets.LingerOption */
1834                 obj_class=mono_class_from_name(get_socket_assembly (),
1835                                                "System.Net.Sockets",
1836                                                "LingerOption");
1837                 obj=mono_object_new(domain, obj_class);
1838
1839                 /* Locate and set the fields "bool enabled" and "int
1840                  * seconds"
1841                  */
1842                 field=mono_class_get_field_from_name(obj_class, "enabled");
1843                 *(guint8 *)(((char *)obj)+field->offset)=linger.l_onoff;
1844
1845                 field=mono_class_get_field_from_name(obj_class, "seconds");
1846                 *(guint32 *)(((char *)obj)+field->offset)=linger.l_linger;
1847
1848                 break;
1849
1850         case SocketOptionName_DontLinger:
1851                 /* construct a bool int in val - true if linger is off */
1852                 obj = int_to_object (domain, !linger.l_onoff);
1853                 break;
1854
1855         case SocketOptionName_SendTimeout:
1856         case SocketOptionName_ReceiveTimeout:
1857                 obj = int_to_object (domain, time_ms);
1858                 break;
1859
1860 #ifdef SO_PEERCRED
1861         case SocketOptionName_PeerCred:
1862         {
1863                 /* build a Mono.Posix.PeerCred+PeerCredData if
1864                  * possible
1865                  */
1866                 static MonoImage *mono_posix_image = NULL;
1867                 MonoPeerCredData *cred_data;
1868
1869                 if (mono_posix_image == NULL) {
1870                         mono_posix_image=mono_image_loaded ("Mono.Posix");
1871                         if (!mono_posix_image) {
1872                                 MonoAssembly *sa = mono_assembly_open ("Mono.Posix.dll", NULL);
1873                                 if (!sa) {
1874                                         *error = WSAENOPROTOOPT;
1875                                         return;
1876                                 } else {
1877                                         mono_posix_image = mono_assembly_get_image (sa);
1878                                 }
1879                         }
1880                 }
1881
1882                 obj_class = mono_class_from_name(mono_posix_image,
1883                                                  "Mono.Posix",
1884                                                  "PeerCredData");
1885                 obj = mono_object_new(domain, obj_class);
1886                 cred_data = (MonoPeerCredData *)obj;
1887                 cred_data->pid = cred.pid;
1888                 cred_data->uid = cred.uid;
1889                 cred_data->gid = cred.gid;
1890                 break;
1891         }
1892 #endif
1893
1894         default:
1895                 obj = int_to_object (domain, val);
1896         }
1897
1898         *obj_val=obj;
1899 }
1900
1901 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_arr_internal(SOCKET sock, gint32 level, gint32 name, MonoArray **byte_val, gint32 *error)
1902 {
1903         int system_level;
1904         int system_name;
1905         int ret;
1906         guchar *buf;
1907         socklen_t valsize;
1908
1909         MONO_ARCH_SAVE_REGS;
1910
1911         *error = 0;
1912
1913         ret=convert_sockopt_level_and_name(level, name, &system_level,
1914                                            &system_name);
1915         if(ret==-1) {
1916                 *error = WSAENOPROTOOPT;
1917                 return;
1918         }
1919         if(ret==-2)
1920                 return;
1921
1922         valsize=mono_array_length(*byte_val);
1923         buf=mono_array_addr(*byte_val, guchar, 0);
1924
1925         ret = _wapi_getsockopt (sock, system_level, system_name, buf, &valsize);
1926         if(ret==SOCKET_ERROR) {
1927                 *error = WSAGetLastError ();
1928         }
1929 }
1930
1931 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
1932 static struct in_addr ipaddress_to_struct_in_addr(MonoObject *ipaddr)
1933 {
1934         struct in_addr inaddr;
1935         MonoClassField *field;
1936
1937         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Address");
1938
1939         /* No idea why .net uses a 64bit type to hold a 32bit value...
1940          *
1941          * Internal value of IPAddess is in little-endian order
1942          */
1943         inaddr.s_addr=GUINT_FROM_LE ((guint32)*(guint64 *)(((char *)ipaddr)+field->offset));
1944
1945         return(inaddr);
1946 }
1947 #endif
1948
1949 #ifdef AF_INET6
1950 static struct in6_addr ipaddress_to_struct_in6_addr(MonoObject *ipaddr)
1951 {
1952         struct in6_addr in6addr;
1953         MonoClassField *field;
1954         MonoArray *data;
1955         int i;
1956
1957         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Numbers");
1958         data=*(MonoArray **)(((char *)ipaddr) + field->offset);
1959
1960 /* Solaris has only the 8 bit version. */
1961 #ifndef s6_addr16
1962         for(i=0; i<8; i++) {
1963                 guint16 s = mono_array_get (data, guint16, i);
1964                 in6addr.s6_addr[2 * i] = (s >> 8) & 0xff;
1965                 in6addr.s6_addr[2 * i + 1] = s & 0xff;
1966         }
1967 #else
1968         for(i=0; i<8; i++)
1969                 in6addr.s6_addr16[i] = mono_array_get (data, guint16, i);
1970 #endif
1971         return(in6addr);
1972 }
1973 #endif /* AF_INET6 */
1974
1975 void ves_icall_System_Net_Sockets_Socket_SetSocketOption_internal(SOCKET sock, gint32 level, gint32 name, MonoObject *obj_val, MonoArray *byte_val, gint32 int_val, gint32 *error)
1976 {
1977         struct linger linger;
1978         int system_level;
1979         int system_name;
1980         int ret;
1981 #ifdef AF_INET6
1982         int sol_ip;
1983         int sol_ipv6;
1984
1985         *error = 0;
1986
1987 #ifdef HAVE_SOL_IPV6
1988         sol_ipv6 = SOL_IPV6;
1989 #else
1990         {
1991                 struct protoent *pent;
1992                 pent = getprotobyname ("ipv6");
1993                 sol_ipv6 = (pent != NULL) ? pent->p_proto : 41;
1994         }
1995 #endif
1996
1997 #ifdef HAVE_SOL_IP
1998         sol_ip = SOL_IP;
1999 #else
2000         {
2001                 struct protoent *pent;
2002                 pent = getprotobyname ("ip");
2003                 sol_ip = (pent != NULL) ? pent->p_proto : 0;
2004         }
2005 #endif
2006 #endif /* AF_INET6 */
2007
2008         MONO_ARCH_SAVE_REGS;
2009
2010         ret=convert_sockopt_level_and_name(level, name, &system_level,
2011                                            &system_name);
2012         if(ret==-1) {
2013                 *error = WSAENOPROTOOPT;
2014                 return;
2015         }
2016         if(ret==-2){
2017                 return;
2018         }
2019
2020         /* Only one of obj_val, byte_val or int_val has data */
2021         if(obj_val!=NULL) {
2022                 MonoClassField *field;
2023                 int valsize;
2024
2025                 switch(name) {
2026                 case SocketOptionName_Linger:
2027                         /* Dig out "bool enabled" and "int seconds"
2028                          * fields
2029                          */
2030                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "enabled");
2031                         linger.l_onoff=*(guint8 *)(((char *)obj_val)+field->offset);
2032                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "seconds");
2033                         linger.l_linger=*(guint32 *)(((char *)obj_val)+field->offset);
2034
2035                         valsize=sizeof(linger);
2036                         ret = _wapi_setsockopt (sock, system_level,
2037                                                 system_name, &linger, valsize);
2038                         break;
2039                 case SocketOptionName_AddMembership:
2040                 case SocketOptionName_DropMembership:
2041 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2042                 {
2043                         MonoObject *address = NULL;
2044
2045 #ifdef AF_INET6
2046                         if(system_level == sol_ipv6) {
2047                                 struct ipv6_mreq mreq6;
2048
2049                                 /*
2050                                  *      Get group address
2051                                  */
2052                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2053                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2054
2055                                 if(address) {
2056                                         mreq6.ipv6mr_multiaddr = ipaddress_to_struct_in6_addr (address);
2057                                 }
2058
2059                                 field=mono_class_get_field_from_name(obj_val->vtable->klass, "ifIndex");
2060                                 mreq6.ipv6mr_interface =*(guint64 *)(((char *)obj_val)+field->offset);
2061
2062                                 ret = _wapi_setsockopt (sock, system_level,
2063                                                         system_name, &mreq6,
2064                                                         sizeof (mreq6));
2065                         } else if(system_level == sol_ip)
2066 #endif /* AF_INET6 */
2067                         {
2068 #ifdef HAVE_STRUCT_IP_MREQN
2069                                 struct ip_mreqn mreq = {{0}};
2070 #else
2071                                 struct ip_mreq mreq = {{0}};
2072 #endif /* HAVE_STRUCT_IP_MREQN */
2073
2074                                 /* pain! MulticastOption holds two IPAddress
2075                                  * members, so I have to dig the value out of
2076                                  * those :-(
2077                                  */
2078                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2079                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2080
2081                                 /* address might not be defined and if so, set the address to ADDR_ANY.
2082                                  */
2083                                 if(address) {
2084                                         mreq.imr_multiaddr = ipaddress_to_struct_in_addr (address);
2085                                 }
2086
2087                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "local");
2088                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2089
2090 #ifdef HAVE_STRUCT_IP_MREQN
2091                                 if(address) {
2092                                         mreq.imr_address = ipaddress_to_struct_in_addr (address);
2093                                 }
2094 #else
2095                                 if(address) {
2096                                         mreq.imr_interface = ipaddress_to_struct_in_addr (address);
2097                                 }
2098 #endif /* HAVE_STRUCT_IP_MREQN */
2099
2100                                 ret = _wapi_setsockopt (sock, system_level,
2101                                                         system_name, &mreq,
2102                                                         sizeof (mreq));
2103                         }
2104                         break;
2105                 }
2106 #endif /* HAVE_STRUCT_IP_MREQN || HAVE_STRUCT_IP_MREQ */
2107                 default:
2108                         /* Cause an exception to be thrown */
2109                         *error = WSAEINVAL;
2110                         return;
2111                 }
2112         } else if (byte_val!=NULL) {
2113                 int valsize = mono_array_length (byte_val);
2114                 guchar *buf = mono_array_addr (byte_val, guchar, 0);
2115
2116                 switch(name) {
2117                 case SocketOptionName_DontLinger:
2118                         if (valsize == 1) {
2119                                 linger.l_onoff = (*buf) ? 0 : 1;
2120                                 linger.l_linger = 0;
2121                                 ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2122                         } else {
2123                                 *error = WSAEINVAL;
2124                         }
2125                         break;
2126                 default:
2127                         ret = _wapi_setsockopt (sock, system_level, system_name, buf, valsize);
2128                         break;
2129                 }
2130         } else {
2131                 /* ReceiveTimeout/SendTimeout get here */
2132                 switch(name) {
2133                 case SocketOptionName_DontLinger:
2134                         linger.l_onoff = !int_val;
2135                         linger.l_linger = 0;
2136                         ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2137                         break;
2138                 case SocketOptionName_DontFragment:
2139 #ifdef HAVE_IP_MTU_DISCOVER
2140                         /* Fiddle with the value slightly if we're
2141                          * turning DF on
2142                          */
2143                         if (int_val == 1) {
2144                                 int_val = IP_PMTUDISC_DO;
2145                         }
2146                         /* Fall through */
2147 #endif
2148
2149                 default:
2150                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2151                 }
2152         }
2153
2154         if(ret==SOCKET_ERROR) {
2155                 *error = WSAGetLastError ();
2156         }
2157 }
2158
2159 void ves_icall_System_Net_Sockets_Socket_Shutdown_internal(SOCKET sock,
2160                                                            gint32 how,
2161                                                            gint32 *error)
2162 {
2163         int ret;
2164
2165         MONO_ARCH_SAVE_REGS;
2166
2167         *error = 0;
2168
2169         /* Currently, the values for how (recv=0, send=1, both=2) match
2170          * the BSD API
2171          */
2172         ret = _wapi_shutdown (sock, how);
2173         if(ret==SOCKET_ERROR) {
2174                 *error = WSAGetLastError ();
2175         }
2176 }
2177
2178 gint
2179 ves_icall_System_Net_Sockets_Socket_WSAIoctl (SOCKET sock, gint32 code,
2180                                               MonoArray *input,
2181                                               MonoArray *output, gint32 *error)
2182 {
2183         glong output_bytes = 0;
2184         gchar *i_buffer, *o_buffer;
2185         gint i_len, o_len;
2186         gint ret;
2187
2188         MONO_ARCH_SAVE_REGS;
2189
2190         *error = 0;
2191
2192         if (code == FIONBIO) {
2193                 /* Invalid command. Must use Socket.Blocking */
2194                 return -1;
2195         }
2196
2197         if (input == NULL) {
2198                 i_buffer = NULL;
2199                 i_len = 0;
2200         } else {
2201                 i_buffer = mono_array_addr (input, gchar, 0);
2202                 i_len = mono_array_length (input);
2203         }
2204
2205         if (output == NULL) {
2206                 o_buffer = NULL;
2207                 o_len = 0;
2208         } else {
2209                 o_buffer = mono_array_addr (output, gchar, 0);
2210                 o_len = mono_array_length (output);
2211         }
2212
2213         ret = WSAIoctl (sock, code, i_buffer, i_len, o_buffer, o_len, &output_bytes, NULL, NULL);
2214         if (ret == SOCKET_ERROR) {
2215                 *error = WSAGetLastError ();
2216                 return(-1);
2217         }
2218
2219         return (gint) output_bytes;
2220 }
2221
2222 #ifdef HAVE_SIOCGIFCONF
2223 static gboolean
2224 is_loopback (int family, void *ad)
2225 {
2226         char *ptr = (char *) ad;
2227
2228         if (family == AF_INET) {
2229                 return (ptr [0] == 127);
2230         }
2231 #ifdef AF_INET6
2232         else {
2233                 return (IN6_IS_ADDR_LOOPBACK ((struct in6_addr *) ptr));
2234         }
2235 #endif
2236         return FALSE;
2237 }
2238
2239 static void *
2240 get_local_ips (int family, int *nips)
2241 {
2242         int addr_size, offset, fd, i, count;
2243         int max_ifaces = 50; /* 50 interfaces should be enough... */
2244         struct ifconf ifc;
2245         struct ifreq *ifr;
2246         struct ifreq iflags;
2247         char *result, *tmp_ptr;
2248         gboolean ignore_loopback = FALSE;
2249
2250         *nips = 0;
2251         if (family == AF_INET) {
2252                 addr_size = sizeof (struct in_addr);
2253                 offset = G_STRUCT_OFFSET (struct sockaddr_in, sin_addr);
2254 #ifdef AF_INET6
2255         } else if (family == AF_INET6) {
2256                 addr_size = sizeof (struct in6_addr);
2257                 offset = G_STRUCT_OFFSET (struct sockaddr_in6, sin6_addr);
2258 #endif
2259         } else {
2260                 return NULL;
2261         }
2262
2263         fd = socket (family, SOCK_STREAM, 0);
2264
2265         ifc.ifc_len = max_ifaces * sizeof (struct ifreq);
2266         ifc.ifc_buf = g_malloc (ifc.ifc_len);
2267         if (ioctl (fd, SIOCGIFCONF, &ifc) < 0) {
2268                 close (fd);
2269                 g_free (ifc.ifc_buf);
2270                 return NULL;
2271         }
2272
2273         count = ifc.ifc_len / sizeof (struct ifreq);
2274         *nips = count;
2275         if (count == 0) {
2276                 g_free (ifc.ifc_buf);
2277                 close (fd);
2278                 return NULL;
2279         }
2280
2281         for (i = 0, ifr = ifc.ifc_req; i < *nips; i++, ifr++) {
2282                 strcpy (iflags.ifr_name, ifr->ifr_name);
2283                 if (ioctl (fd, SIOCGIFFLAGS, &iflags) < 0) {
2284                         continue;
2285                 }
2286
2287                 if ((iflags.ifr_flags & IFF_UP) == 0) {
2288                         ifr->ifr_name [0] = '\0';
2289                         continue;
2290                 }
2291
2292                 if ((iflags.ifr_flags & IFF_LOOPBACK) == 0) {
2293                         ignore_loopback = TRUE;
2294                 }
2295         }
2296
2297         close (fd);
2298         result = g_malloc (addr_size * count);
2299         tmp_ptr = result;
2300         for (i = 0, ifr = ifc.ifc_req; i < count; i++, ifr++) {
2301                 if (ifr->ifr_name [0] == '\0') {
2302                         (*nips)--;
2303                         continue;
2304                 }
2305
2306                 if (ignore_loopback && is_loopback (family, ((char *) &ifr->ifr_addr) + offset)) {
2307                         (*nips)--;
2308                         continue;
2309                 }
2310
2311                 memcpy (tmp_ptr, ((char *) &ifr->ifr_addr) + offset, addr_size);
2312                 tmp_ptr += addr_size;
2313         }
2314
2315         g_free (ifc.ifc_buf);
2316         return result;
2317 }
2318 #else
2319 static void *
2320 get_local_ips (int family, int *nips)
2321 {
2322         *nips = 0;
2323         return NULL;
2324 }
2325
2326 #endif /* HAVE_SIOCGIFCONF */
2327
2328 #ifndef AF_INET6
2329 static gboolean hostent_to_IPHostEntry(struct hostent *he, MonoString **h_name,
2330                                        MonoArray **h_aliases,
2331                                        MonoArray **h_addr_list,
2332                                        gboolean add_local_ips)
2333 {
2334         MonoDomain *domain = mono_domain_get ();
2335         int i = 0;
2336         struct in_addr *local_in = NULL;
2337         int nlocal_in = 0;
2338
2339         if (he != NULL) {
2340                 if(he->h_length!=4 || he->h_addrtype!=AF_INET) {
2341                         return(FALSE);
2342                 }
2343
2344                 *h_name=mono_string_new(domain, he->h_name);
2345
2346                 while(he->h_aliases[i]!=NULL) {
2347                         i++;
2348                 }
2349
2350                 *h_aliases=mono_array_new(domain, mono_get_string_class (), i);
2351                 i=0;
2352                 while(he->h_aliases[i]!=NULL) {
2353                         MonoString *alias;
2354
2355                         alias=mono_string_new(domain, he->h_aliases[i]);
2356                         mono_array_setref (*h_aliases, i, alias);
2357                         i++;
2358                 }
2359         } else if (!add_local_ips) {
2360                 return FALSE;
2361         }
2362
2363         if (add_local_ips) {
2364                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2365                 if (nlocal_in) {
2366                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), nlocal_in);
2367                         for (i = 0; i < nlocal_in; i++) {
2368                                 MonoString *addr_string;
2369                                 char addr [16], *ptr;
2370
2371                                 ptr = (char *) &local_in [i];
2372                                 g_snprintf(addr, 16, "%u.%u.%u.%u",
2373                                          (unsigned char) ptr [0],
2374                                          (unsigned char) ptr [1],
2375                                          (unsigned char) ptr [2],
2376                                          (unsigned char) ptr [3]);
2377
2378                                 addr_string = mono_string_new (domain, addr);
2379                                 mono_array_setref (*h_addr_list, i, addr_string);
2380                                 i++;
2381                         }
2382
2383                         g_free (local_in);
2384                 } else if (he == NULL) {
2385                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2386                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2387                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2388                         return TRUE;
2389                 }
2390         }
2391
2392         if (nlocal_in == 0 && he != NULL) {
2393                 i = 0;
2394                 while (he->h_addr_list[i]!=NULL) {
2395                         i++;
2396                 }
2397
2398                 *h_addr_list=mono_array_new(domain, mono_get_string_class (), i);
2399                 i=0;
2400                 while(he->h_addr_list[i]!=NULL) {
2401                         MonoString *addr_string;
2402                         char addr[16];
2403
2404                         g_snprintf(addr, 16, "%u.%u.%u.%u",
2405                                  (unsigned char)he->h_addr_list[i][0],
2406                                  (unsigned char)he->h_addr_list[i][1],
2407                                  (unsigned char)he->h_addr_list[i][2],
2408                                  (unsigned char)he->h_addr_list[i][3]);
2409
2410                         addr_string=mono_string_new(domain, addr);
2411                         mono_array_setref (*h_addr_list, i, addr_string);
2412                         i++;
2413                 }
2414         }
2415
2416         return(TRUE);
2417 }
2418
2419 static gboolean ipaddr_to_IPHostEntry(const char *addr, MonoString **h_name,
2420                                       MonoArray **h_aliases,
2421                                       MonoArray **h_addr_list)
2422 {
2423         MonoDomain *domain = mono_domain_get ();
2424
2425         *h_name=mono_string_new(domain, addr);
2426         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2427         *h_addr_list=mono_array_new(domain, mono_get_string_class (), 1);
2428         mono_array_setref (*h_addr_list, 0, *h_name);
2429
2430         return(TRUE);
2431 }
2432 #endif
2433
2434 #if defined(AF_INET6) && defined(HAVE_GETHOSTBYNAME2_R)
2435 static gboolean hostent_to_IPHostEntry2(struct hostent *he1,struct hostent *he2, MonoString **h_name,
2436                                 MonoArray **h_aliases, MonoArray **h_addr_list, gboolean add_local_ips)
2437 {
2438         MonoDomain *domain = mono_domain_get ();
2439         int i, host_count, host_index, family_hint;
2440         struct in_addr *local_in = NULL;
2441         int nlocal_in = 0;
2442         struct in6_addr *local_in6 = NULL;
2443         int nlocal_in6 = 0;
2444         gboolean from_local = FALSE;
2445
2446         family_hint = get_family_hint ();
2447
2448         /*
2449          * Check if address length and family are correct
2450          */
2451         if (he1 != NULL && (he1->h_length!=4 || he1->h_addrtype!=AF_INET)) {
2452                 return(FALSE);
2453         }
2454
2455         if (he2 != NULL && (he2->h_length!=16 || he2->h_addrtype!=AF_INET6)) {
2456                 return(FALSE);
2457         }
2458
2459         /*
2460          * Get the aliases and host name from he1 or he2 whichever is
2461          * not null, if he1 is not null then take aliases from he1
2462          */
2463         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2464                             family_hint == PF_INET)) {
2465                 *h_name=mono_string_new (domain, he1->h_name);
2466
2467                 i=0;
2468                 while(he1->h_aliases[i]!=NULL) {
2469                         i++;
2470                 }
2471
2472                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2473                                            i);
2474                 i=0;
2475                 while(he1->h_aliases[i]!=NULL) {
2476                         MonoString *alias;
2477
2478                         alias=mono_string_new (domain, he1->h_aliases[i]);
2479                         mono_array_setref (*h_aliases, i, alias);
2480                         i++;
2481                 }
2482         } else if (he2 != NULL && (family_hint == PF_UNSPEC ||
2483                                    family_hint == PF_INET6)) {
2484                 *h_name=mono_string_new (domain, he2->h_name);
2485
2486                 i=0;
2487                 while(he2->h_aliases [i] != NULL) {
2488                         i++;
2489                 }
2490
2491                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2492                                            i);
2493                 i=0;
2494                 while(he2->h_aliases[i]!=NULL) {
2495                         MonoString *alias;
2496
2497                         alias=mono_string_new (domain, he2->h_aliases[i]);
2498                         mono_array_setref (*h_aliases, i, alias);
2499                         i++;
2500                 }
2501         } else if (!add_local_ips) {
2502                 return(FALSE);
2503         }
2504
2505         /*
2506          * Count the number of addresses in he1 + he2
2507          */
2508         host_count = 0;
2509         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2510                             family_hint == PF_INET)) {
2511                 i=0;
2512                 while(he1->h_addr_list[i]!=NULL) {
2513                         i++;
2514                         host_count++;
2515                 }
2516         }
2517
2518         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2519                             family_hint == PF_INET6)) {
2520                 i=0;
2521                 while(he2->h_addr_list[i]!=NULL) {
2522                         i++;
2523                         host_count++;
2524                 }
2525         }
2526
2527         /*
2528          * Fills the array
2529          */
2530         host_index = 0;
2531         if (add_local_ips) {
2532                 if (family_hint == PF_UNSPEC || family_hint == PF_INET)
2533                         local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2534
2535                 if (family_hint == PF_UNSPEC || family_hint == PF_INET6)
2536                         local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2537
2538                 if (nlocal_in || nlocal_in6) {
2539                         from_local = TRUE;
2540                         *h_addr_list = mono_array_new (domain, mono_get_string_class (),
2541                                                              nlocal_in + nlocal_in6);
2542
2543                         if (nlocal_in6) {
2544                                 int n;
2545                                 for (n = 0; n < nlocal_in6; n++) {
2546                                         MonoString *addr_string;
2547                                         const char *ret;
2548                                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes with the trailing NULL */
2549
2550                                         ret = inet_ntop (AF_INET6, &local_in6 [n], addr, sizeof(addr));
2551
2552                                         if (ret != NULL) {
2553                                                 addr_string = mono_string_new (domain, addr);
2554                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2555                                                 host_index++;
2556                                         }
2557                                 }
2558                         }
2559
2560                         if (nlocal_in) {
2561                                 int n;
2562                                 for (n = 0; n < nlocal_in; n++) {
2563                                         MonoString *addr_string;
2564                                         const char *ret;
2565                                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2566
2567                                         ret = inet_ntop (AF_INET, &local_in [n], addr, sizeof(addr));
2568
2569                                         if (ret != NULL) {
2570                                                 addr_string = mono_string_new (domain, addr);
2571                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2572                                                 host_index++;
2573                                         }
2574                                 }
2575                         }
2576                         g_free (local_in);
2577                         g_free (local_in6);
2578                         return TRUE;
2579                 } else if (he1 == NULL && he2 == NULL) {
2580                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2581                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2582                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2583                         g_free (local_in);
2584                         g_free (local_in6);
2585                         return TRUE;
2586                 }
2587
2588                 g_free (local_in);
2589                 g_free (local_in6);
2590         }
2591
2592         *h_addr_list=mono_array_new (domain, mono_get_string_class (), host_count);
2593
2594         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2595                             family_hint == PF_INET6)) {
2596                 i = 0;
2597                 while(he2->h_addr_list[i] != NULL) {
2598                         MonoString *addr_string;
2599                         const char *ret;
2600                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes long with the trailing NULL */
2601
2602                         ret = inet_ntop (AF_INET6, he2->h_addr_list[i], addr,
2603                                          sizeof(addr));
2604
2605                         if (ret != NULL) {
2606                                 addr_string = mono_string_new (domain, addr);
2607                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2608                                 i++;
2609                                 host_index++;
2610                         }
2611                 }
2612         }
2613
2614         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2615                             family_hint == PF_INET)) {
2616                 i=0;
2617                 while(he1->h_addr_list[i] != NULL) {
2618                         MonoString *addr_string;
2619                         const char *ret;
2620                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2621
2622                         ret = inet_ntop (AF_INET, he1->h_addr_list[i], addr,
2623                                          sizeof(addr));
2624
2625                         if (ret != NULL) {
2626                                 addr_string=mono_string_new (domain, addr);
2627                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2628                                 i++;
2629                                 host_index++;
2630                         }
2631                 }
2632         }
2633
2634         return(TRUE);
2635 }
2636 #endif
2637
2638 #if defined(AF_INET6)
2639 static gboolean
2640 addrinfo_to_IPHostEntry(struct addrinfo *info, MonoString **h_name,
2641                                                 MonoArray **h_aliases,
2642                                                 MonoArray **h_addr_list,
2643                                                 gboolean add_local_ips)
2644 {
2645         gint32 count, i;
2646         struct addrinfo *ai = NULL;
2647         struct in_addr *local_in = NULL;
2648         int nlocal_in = 0;
2649         struct in6_addr *local_in6 = NULL;
2650         int nlocal_in6 = 0;
2651         int addr_index;
2652
2653         MonoDomain *domain = mono_domain_get ();
2654
2655         addr_index = 0;
2656         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2657         if (add_local_ips) {
2658                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2659                 local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2660                 if (nlocal_in || nlocal_in6) {
2661                         *h_addr_list=mono_array_new(domain, mono_get_string_class (), nlocal_in + nlocal_in6);
2662                         if (nlocal_in) {
2663                                 MonoString *addr_string;
2664                                 char addr [16];
2665                                 int i;
2666
2667                                 for (i = 0; i < nlocal_in; i++) {
2668                                         inet_ntop (AF_INET, &local_in [i], addr, sizeof (addr));
2669                                         addr_string = mono_string_new (domain, addr);
2670                                         mono_array_setref (*h_addr_list, addr_index, addr_string);
2671                                         addr_index++;
2672                                 }
2673                         }
2674
2675                         if (nlocal_in6) {
2676                                 MonoString *addr_string;
2677                                 const char *ret;
2678                                 char addr [48];
2679                                 int i;
2680
2681                                 for (i = 0; i < nlocal_in6; i++) {
2682                                         ret = inet_ntop (AF_INET6, &local_in6 [i], addr, sizeof (addr));
2683                                         if (ret != NULL) {
2684                                                 addr_string = mono_string_new (domain, addr);
2685                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2686                                                 addr_index++;
2687                                         }
2688                                 }
2689                         }
2690
2691                         g_free (local_in);
2692                         g_free (local_in6);
2693                         if (info) {
2694                                 freeaddrinfo (info);
2695                         }
2696                         return TRUE;
2697                 }
2698
2699                 g_free (local_in);
2700                 g_free (local_in6);
2701         }
2702
2703         for (count=0, ai=info; ai!=NULL; ai=ai->ai_next) {
2704                 if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6)
2705                         continue;
2706
2707                 count++;
2708         }
2709
2710         *h_addr_list=mono_array_new(domain, mono_get_string_class (), count);
2711
2712         for (ai=info, i=0; ai!=NULL; ai=ai->ai_next) {
2713                 MonoString *addr_string;
2714                 const char *ret;
2715                 char buffer [48]; /* Max. size for IPv6 */
2716
2717                 if((ai->ai_family != PF_INET) && (ai->ai_family != PF_INET6)) {
2718                         continue;
2719                 }
2720
2721                 if(ai->ai_family == PF_INET) {
2722                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr), buffer, 16);
2723                 } else {
2724                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr), buffer, 48);
2725                 }
2726
2727                 if(ret) {
2728                         addr_string=mono_string_new(domain, buffer);
2729                 } else {
2730                         addr_string=mono_string_new(domain, "");
2731                 }
2732
2733                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2734
2735                 if(!i) {
2736                         if (ai->ai_canonname != NULL) {
2737                                 *h_name=mono_string_new(domain, ai->ai_canonname);
2738                         } else {
2739                                 *h_name=mono_string_new(domain, buffer);
2740                         }
2741                 }
2742
2743                 addr_index++;
2744         }
2745
2746         if(info) {
2747                 freeaddrinfo(info);
2748         }
2749
2750         return(TRUE);
2751 }
2752 #endif
2753
2754 #ifdef AF_INET6
2755 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2756 {
2757         gboolean add_local_ips = FALSE;
2758 #ifdef HAVE_SIOCGIFCONF
2759         gchar this_hostname [256];
2760 #endif
2761 #if !defined(HAVE_GETHOSTBYNAME2_R)
2762         struct addrinfo *info = NULL, hints;
2763         char *hostname;
2764
2765         MONO_ARCH_SAVE_REGS;
2766
2767         hostname=mono_string_to_utf8 (host);
2768         if (*hostname == '\0')
2769                 add_local_ips = TRUE;
2770 #ifdef HAVE_SIOCGIFCONF
2771         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2772                 if (!strcmp (hostname, this_hostname))
2773                         add_local_ips = TRUE;
2774         }
2775 #endif
2776
2777         memset(&hints, 0, sizeof(hints));
2778         hints.ai_family = get_family_hint ();
2779         hints.ai_socktype = SOCK_STREAM;
2780         hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
2781
2782         if (*hostname && getaddrinfo(hostname, NULL, &hints, &info) == -1) {
2783                 return(FALSE);
2784         }
2785
2786         g_free(hostname);
2787
2788         return(addrinfo_to_IPHostEntry(info, h_name, h_aliases, h_addr_list, add_local_ips));
2789 #else
2790         struct hostent he1,*hp1, he2, *hp2;
2791         int buffer_size1, buffer_size2;
2792         char *buffer1, *buffer2;
2793         int herr;
2794         gboolean return_value;
2795         char *hostname;
2796
2797         MONO_ARCH_SAVE_REGS;
2798
2799         hostname=mono_string_to_utf8 (host);
2800         if (*hostname == '\0')
2801                 add_local_ips = TRUE;
2802
2803 #ifdef HAVE_SIOCGIFCONF
2804         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2805                 if (!strcmp (hostname, this_hostname))
2806                         add_local_ips = TRUE;
2807         }
2808 #endif
2809
2810         buffer_size1 = 512;
2811         buffer_size2 = 512;
2812         buffer1 = g_malloc0(buffer_size1);
2813         buffer2 = g_malloc0(buffer_size2);
2814
2815         hp1 = NULL;
2816         hp2 = NULL;
2817         while (*hostname && gethostbyname2_r(hostname, AF_INET, &he1, buffer1, buffer_size1,
2818                                 &hp1, &herr) == ERANGE) {
2819                 buffer_size1 *= 2;
2820                 buffer1 = g_realloc(buffer1, buffer_size1);
2821         }
2822
2823         if (*hostname && hp1 == NULL)
2824         {
2825                 while (gethostbyname2_r(hostname, AF_INET6, &he2, buffer2,
2826                                         buffer_size2, &hp2, &herr) == ERANGE) {
2827                         buffer_size2 *= 2;
2828                         buffer2 = g_realloc(buffer2, buffer_size2);
2829                 }
2830         }
2831
2832         return_value = hostent_to_IPHostEntry2(hp1, hp2, h_name, h_aliases,
2833                                                h_addr_list, add_local_ips);
2834
2835         g_free(buffer1);
2836         g_free(buffer2);
2837         g_free(hostname);
2838
2839         return(return_value);
2840 #endif /* HAVE_GETHOSTBYNAME2_R */
2841 }
2842 #else /* AF_INET6 */
2843 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2844 {
2845         struct hostent *he;
2846         char *hostname;
2847         gboolean add_local_ips = FALSE;
2848 #ifdef HAVE_SIOCGIFCONF
2849         gchar this_hostname [256];
2850 #endif
2851
2852         MONO_ARCH_SAVE_REGS;
2853
2854         hostname=mono_string_to_utf8(host);
2855         if (*hostname == '\0')
2856                 add_local_ips = TRUE;
2857 #ifdef HAVE_SIOCGIFCONF
2858         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2859                 if (!strcmp (hostname, this_hostname))
2860                         add_local_ips = TRUE;
2861         }
2862 #endif
2863
2864         he = NULL;
2865         if (*hostname)
2866                 he = _wapi_gethostbyname (hostname);
2867         g_free(hostname);
2868
2869         if (*hostname && he==NULL)
2870                 return(FALSE);
2871
2872         return(hostent_to_IPHostEntry(he, h_name, h_aliases, h_addr_list, add_local_ips));
2873 }
2874 #endif /* AF_INET6 */
2875
2876 #ifndef HAVE_INET_PTON
2877 static int
2878 inet_pton (int family, const char *address, void *inaddrp)
2879 {
2880         if (family == AF_INET) {
2881 #ifdef HAVE_INET_ATON
2882                 struct in_addr inaddr;
2883
2884                 if (!inet_aton (address, &inaddr))
2885                         return 0;
2886
2887                 memcpy (inaddrp, &inaddr, sizeof (struct in_addr));
2888                 return 1;
2889 #else
2890                 /* assume the system has inet_addr(), if it doesn't
2891                    have that we're pretty much screwed... */
2892                 guint32 inaddr;
2893
2894                 if (!strcmp (address, "255.255.255.255")) {
2895                         /* special-case hack */
2896                         inaddr = 0xffffffff;
2897                 } else {
2898                         inaddr = inet_addr (address);
2899 #ifndef INADDR_NONE
2900 #define INADDR_NONE ((in_addr_t) -1)
2901 #endif
2902                         if (inaddr == INADDR_NONE)
2903                                 return 0;
2904                 }
2905
2906                 memcpy (inaddrp, &inaddr, sizeof (guint32));
2907                 return 1;
2908 #endif /* HAVE_INET_ATON */
2909         }
2910
2911         return -1;
2912 }
2913 #endif /* !HAVE_INET_PTON */
2914
2915 extern MonoBoolean ves_icall_System_Net_Dns_GetHostByAddr_internal(MonoString *addr, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2916 {
2917         char *address;
2918
2919 #ifdef AF_INET6
2920         struct sockaddr_in saddr;
2921         struct sockaddr_in6 saddr6;
2922         struct addrinfo *info = NULL, hints;
2923         gint32 family;
2924         char hostname[1024] = {0};
2925         int flags = 0;
2926 #else
2927         struct in_addr inaddr;
2928         struct hostent *he;
2929         gboolean ret;
2930 #endif
2931
2932         address = mono_string_to_utf8 (addr);
2933
2934 #ifdef AF_INET6
2935         if (inet_pton (AF_INET, address, &saddr.sin_addr ) <= 0) {
2936                 /* Maybe an ipv6 address */
2937                 if (inet_pton (AF_INET6, address, &saddr6.sin6_addr) <= 0) {
2938                         g_free (address);
2939                         return FALSE;
2940                 }
2941                 else {
2942                         family = AF_INET6;
2943                         saddr6.sin6_family = AF_INET6;
2944                 }
2945         }
2946         else {
2947                 family = AF_INET;
2948                 saddr.sin_family = AF_INET;
2949         }
2950         g_free(address);
2951
2952         if(family == AF_INET) {
2953 #if HAVE_SOCKADDR_IN_SIN_LEN
2954                 saddr.sin_len = sizeof (saddr);
2955 #endif
2956                 if(getnameinfo ((struct sockaddr*)&saddr, sizeof(saddr),
2957                                 hostname, sizeof(hostname), NULL, 0,
2958                                 flags) != 0) {
2959                         return(FALSE);
2960                 }
2961         } else if(family == AF_INET6) {
2962 #if HAVE_SOCKADDR_IN6_SIN_LEN
2963                 saddr6.sin6_len = sizeof (saddr6);
2964 #endif
2965                 if(getnameinfo ((struct sockaddr*)&saddr6, sizeof(saddr6),
2966                                 hostname, sizeof(hostname), NULL, 0,
2967                                 flags) != 0) {
2968                         return(FALSE);
2969                 }
2970         }
2971
2972         memset (&hints, 0, sizeof(hints));
2973         hints.ai_family = get_family_hint ();
2974         hints.ai_socktype = SOCK_STREAM;
2975         hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
2976
2977         if( getaddrinfo (hostname, NULL, &hints, &info) == -1 ) {
2978                 return(FALSE);
2979         }
2980
2981         return(addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, FALSE));
2982 #else
2983         if (inet_pton (AF_INET, address, &inaddr) <= 0) {
2984                 g_free (address);
2985                 return(FALSE);
2986         }
2987
2988         if ((he = gethostbyaddr ((char *) &inaddr, sizeof (inaddr), AF_INET)) == NULL) {
2989                 ret = ipaddr_to_IPHostEntry (address, h_name, h_aliases, h_addr_list);
2990         } else {
2991                 ret = hostent_to_IPHostEntry (he, h_name, h_aliases,
2992                                               h_addr_list, FALSE);
2993         }
2994
2995         g_free (address);
2996         return(ret);
2997 #endif
2998 }
2999
3000 extern MonoBoolean ves_icall_System_Net_Dns_GetHostName_internal(MonoString **h_name)
3001 {
3002         gchar hostname[256];
3003         int ret;
3004
3005         MONO_ARCH_SAVE_REGS;
3006
3007         ret = gethostname (hostname, sizeof (hostname));
3008         if(ret==-1) {
3009                 return(FALSE);
3010         }
3011
3012         *h_name=mono_string_new(mono_domain_get (), hostname);
3013
3014         return(TRUE);
3015 }
3016
3017 gboolean
3018 ves_icall_System_Net_Sockets_Socket_SendFile (SOCKET sock, MonoString *filename, MonoArray *pre_buffer, MonoArray *post_buffer, gint flags)
3019 {
3020         HANDLE file;
3021         gint32 error;
3022         TRANSMIT_FILE_BUFFERS buffers;
3023
3024         MONO_ARCH_SAVE_REGS;
3025
3026         if (filename == NULL)
3027                 return FALSE;
3028
3029         file = ves_icall_System_IO_MonoIO_Open (filename, FileMode_Open, FileAccess_Read, FileShare_Read, 0, &error);
3030         if (file == INVALID_HANDLE_VALUE) {
3031                 SetLastError (error);
3032                 return FALSE;
3033         }
3034
3035         memset (&buffers, 0, sizeof (buffers));
3036         if (pre_buffer != NULL) {
3037                 buffers.Head = mono_array_addr (pre_buffer, guchar, 0);
3038                 buffers.HeadLength = mono_array_length (pre_buffer);
3039         }
3040         if (post_buffer != NULL) {
3041                 buffers.Tail = mono_array_addr (post_buffer, guchar, 0);
3042                 buffers.TailLength = mono_array_length (post_buffer);
3043         }
3044
3045         if (!TransmitFile (sock, file, 0, 0, NULL, &buffers, flags)) {
3046                 CloseHandle (file);
3047                 return FALSE;
3048         }
3049
3050         CloseHandle (file);
3051         return TRUE;
3052 }
3053
3054 void mono_network_init(void)
3055 {
3056         WSADATA wsadata;
3057         int err;
3058
3059         err=WSAStartup(MAKEWORD(2,0), &wsadata);
3060         if(err!=0) {
3061                 g_error("%s: Couldn't initialise networking", __func__);
3062                 exit(-1);
3063         }
3064
3065         LOGDEBUG (g_message("%s: Using socket library: %s", __func__, wsadata.szDescription));
3066         LOGDEBUG (g_message("%s: Socket system status: %s", __func__, wsadata.szSystemStatus));
3067 }
3068
3069 void mono_network_cleanup(void)
3070 {
3071         WSACleanup();
3072 }
3073