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 PLATFORM_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/threads.h>
  39 #include <mono/metadata/threads-types.h>
  40 #include <mono/utils/mono-poll.h>
  41 /* FIXME change this code to not mess so much with the internals */
  42 #include <mono/metadata/class-internals.h>
  43 #include <mono/metadata/threadpool-internals.h>
  44 #include <mono/metadata/domain-internals.h>
  45
  46 #ifdef HAVE_SYS_TIME_H
  47 #include <sys/time.h>
  48 #endif
  49 #ifdef HAVE_SYS_IOCTL_H
  50 #include <sys/ioctl.h>
  51 #endif
  52 #ifdef HAVE_NET_IF_H
  53 #include <net/if.h>
  54 #endif
  55
  56 #ifdef HAVE_NETDB_H
  57 #include <netdb.h>
  58 #endif
  59 #ifdef HAVE_SYS_FILIO_H
  60 #include <sys/filio.h>     /* defines FIONBIO and FIONREAD */
  61 #endif
  62 #ifdef HAVE_SYS_SOCKIO_H
  63 #include <sys/sockio.h>    /* defines SIOCATMARK */
  64 #endif
  65 #ifdef HAVE_SYS_UN_H
  66 #include <sys/un.h>
  67 #endif
  68
  69 #include "mono/io-layer/socket-wrappers.h"
  70
  71 #ifdef PLATFORM_WIN32
  72 /* This is a kludge to make this file build under cygwin:
  73  * w32api/ws2tcpip.h has definitions for some AF_INET6 values and
  74  * prototypes for some but not all required functions (notably
  75  * inet_ntop() is missing), but the libws2_32 library is missing the
  76  * actual implementations of these functions.
  77  */
  78 #undef AF_INET6
  79 #endif
  80
  81 #ifdef PLATFORM_ANDROID
  82 // not yet actually implemented...
  83 #undef AF_INET6
  84 #endif
  85
  86 #undef DEBUG
  87
  88 static gint32 convert_family(MonoAddressFamily mono_family)
  89 {
  90         gint32 family=-1;
  91
  92         switch(mono_family) {
  93         case AddressFamily_Unknown:
  94         case AddressFamily_ImpLink:
  95         case AddressFamily_Pup:
  96         case AddressFamily_Chaos:
  97         case AddressFamily_Iso:
  98         case AddressFamily_Ecma:
  99         case AddressFamily_DataKit:
 100         case AddressFamily_Ccitt:
 101         case AddressFamily_DataLink:
 102         case AddressFamily_Lat:
 103         case AddressFamily_HyperChannel:
 104         case AddressFamily_NetBios:
 105         case AddressFamily_VoiceView:
 106         case AddressFamily_FireFox:
 107         case AddressFamily_Banyan:
 108         case AddressFamily_Atm:
 109         case AddressFamily_Cluster:
 110         case AddressFamily_Ieee12844:
 111         case AddressFamily_NetworkDesigners:
 112                 g_warning("System.Net.Sockets.AddressFamily has unsupported value 0x%x", mono_family);
 113                 break;
 114
 115         case AddressFamily_Unspecified:
 116                 family=AF_UNSPEC;
 117                 break;
 118
 119         case AddressFamily_Unix:
 120                 family=AF_UNIX;
 121                 break;
 122
 123         case AddressFamily_InterNetwork:
 124                 family=AF_INET;
 125                 break;
 126
 127         case AddressFamily_Ipx:
 128 #ifdef AF_IPX
 129                 family=AF_IPX;
 130 #endif
 131                 break;
 132
 133         case AddressFamily_Sna:
 134                 family=AF_SNA;
 135                 break;
 136
 137         case AddressFamily_DecNet:
 138                 family=AF_DECnet;
 139                 break;
 140
 141         case AddressFamily_AppleTalk:
 142                 family=AF_APPLETALK;
 143                 break;
 144
 145         case AddressFamily_InterNetworkV6:
 146 #ifdef AF_INET6
 147                 family=AF_INET6;
 148 #endif
 149                 break;
 150         case AddressFamily_Irda:
 151 #ifdef AF_IRDA
 152                 family=AF_IRDA;
 153 #endif
 154                 break;
 155         default:
 156                 g_warning("System.Net.Sockets.AddressFamily has unknown value 0x%x", mono_family);
 157         }
 158
 159         return(family);
 160 }
 161
 162 static MonoAddressFamily convert_to_mono_family(guint16 af_family)
 163 {
 164         MonoAddressFamily family=AddressFamily_Unknown;
 165
 166         switch(af_family) {
 167         case AF_UNSPEC:
 168                 family=AddressFamily_Unspecified;
 169                 break;
 170
 171         case AF_UNIX:
 172                 family=AddressFamily_Unix;
 173                 break;
 174
 175         case AF_INET:
 176                 family=AddressFamily_InterNetwork;
 177                 break;
 178
 179 #ifdef AF_IPX
 180         case AF_IPX:
 181                 family=AddressFamily_Ipx;
 182                 break;
 183 #endif
 184
 185         case AF_SNA:
 186                 family=AddressFamily_Sna;
 187                 break;
 188
 189         case AF_DECnet:
 190                 family=AddressFamily_DecNet;
 191                 break;
 192
 193         case AF_APPLETALK:
 194                 family=AddressFamily_AppleTalk;
 195                 break;
 196
 197 #ifdef AF_INET6
 198         case AF_INET6:
 199                 family=AddressFamily_InterNetworkV6;
 200                 break;
 201 #endif
 202
 203 #ifdef AF_IRDA
 204         case AF_IRDA:
 205                 family=AddressFamily_Irda;
 206                 break;
 207 #endif
 208         default:
 209                 g_warning("unknown address family 0x%x", af_family);
 210         }
 211
 212         return(family);
 213 }
 214
 215 static gint32 convert_type(MonoSocketType mono_type)
 216 {
 217         gint32 type=-1;
 218
 219         switch(mono_type) {
 220         case SocketType_Stream:
 221                 type=SOCK_STREAM;
 222                 break;
 223
 224         case SocketType_Dgram:
 225                 type=SOCK_DGRAM;
 226                 break;
 227
 228         case SocketType_Raw:
 229                 type=SOCK_RAW;
 230                 break;
 231
 232         case SocketType_Rdm:
 233                 type=SOCK_RDM;
 234                 break;
 235
 236         case SocketType_Seqpacket:
 237                 type=SOCK_SEQPACKET;
 238                 break;
 239
 240         case SocketType_Unknown:
 241                 g_warning("System.Net.Sockets.SocketType has unsupported value 0x%x", mono_type);
 242                 break;
 243
 244         default:
 245                 g_warning("System.Net.Sockets.SocketType has unknown value 0x%x", mono_type);
 246         }
 247
 248         return(type);
 249 }
 250
 251 static gint32 convert_proto(MonoProtocolType mono_proto)
 252 {
 253         gint32 proto=-1;
 254
 255         switch(mono_proto) {
 256         case ProtocolType_IP:
 257         case ProtocolType_IPv6:
 258         case ProtocolType_Icmp:
 259         case ProtocolType_Igmp:
 260         case ProtocolType_Ggp:
 261         case ProtocolType_Tcp:
 262         case ProtocolType_Pup:
 263         case ProtocolType_Udp:
 264         case ProtocolType_Idp:
 265                 /* These protocols are known (on my system at least) */
 266                 proto=mono_proto;
 267                 break;
 268
 269         case ProtocolType_ND:
 270         case ProtocolType_Raw:
 271         case ProtocolType_Ipx:
 272         case ProtocolType_Spx:
 273         case ProtocolType_SpxII:
 274         case ProtocolType_Unknown:
 275                 /* These protocols arent */
 276                 g_warning("System.Net.Sockets.ProtocolType has unsupported value 0x%x", mono_proto);
 277                 break;
 278
 279         default:
 280                 break;
 281         }
 282
 283         return(proto);
 284 }
 285
 286 /* Convert MonoSocketFlags */
 287 static gint32 convert_socketflags (gint32 sflags)
 288 {
 289         gint32 flags = 0;
 290
 291         if (!sflags)
 292                 /* SocketFlags.None */
 293                 return 0;
 294
 295         if (sflags & ~(SocketFlags_OutOfBand | SocketFlags_MaxIOVectorLength | SocketFlags_Peek |
 296                         SocketFlags_DontRoute | SocketFlags_Partial))
 297                 /* Contains invalid flag values */
 298                 return -1;
 299
 300         if (sflags & SocketFlags_OutOfBand)
 301                 flags |= MSG_OOB;
 302         if (sflags & SocketFlags_Peek)
 303                 flags |= MSG_PEEK;
 304         if (sflags & SocketFlags_DontRoute)
 305                 flags |= MSG_DONTROUTE;
 306
 307         /* Ignore Partial - see bug 349688.  Don't return -1, because
 308          * according to the comment in that bug ms runtime doesn't for
 309          * UDP sockets (this means we will silently ignore it for TCP
 310          * too)
 311          */
 312 #ifdef MSG_MORE
 313         if (sflags & SocketFlags_Partial)
 314                 flags |= MSG_MORE;
 315 #endif
 316 #if 0
 317         /* Don't do anything for MaxIOVectorLength */
 318         if (sflags & SocketFlags_MaxIOVectorLength)
 319                 return -1;
 320 #endif
 321         return flags;
 322 }
 323
 324 /*
 325  * Returns:
 326  *    0 on success (mapped mono_level and mono_name to system_level and system_name
 327  *   -1 on error
 328  *   -2 on non-fatal error (ie, must ignore)
 329  */
 330 static gint32 convert_sockopt_level_and_name(MonoSocketOptionLevel mono_level,
 331                                              MonoSocketOptionName mono_name,
 332                                              int *system_level,
 333                                              int *system_name)
 334 {
 335         switch (mono_level) {
 336         case SocketOptionLevel_Socket:
 337                 *system_level = SOL_SOCKET;
 338
 339                 switch(mono_name) {
 340                 case SocketOptionName_DontLinger:
 341                         /* This is SO_LINGER, because the setsockopt
 342                          * internal call maps DontLinger to SO_LINGER
 343                          * with l_onoff=0
 344                          */
 345                         *system_name = SO_LINGER;
 346                         break;
 347                 case SocketOptionName_Debug:
 348                         *system_name = SO_DEBUG;
 349                         break;
 350 #ifdef SO_ACCEPTCONN
 351                 case SocketOptionName_AcceptConnection:
 352                         *system_name = SO_ACCEPTCONN;
 353                         break;
 354 #endif
 355                 case SocketOptionName_ReuseAddress:
 356                         *system_name = SO_REUSEADDR;
 357                         break;
 358                 case SocketOptionName_KeepAlive:
 359                         *system_name = SO_KEEPALIVE;
 360                         break;
 361                 case SocketOptionName_DontRoute:
 362                         *system_name = SO_DONTROUTE;
 363                         break;
 364                 case SocketOptionName_Broadcast:
 365                         *system_name = SO_BROADCAST;
 366                         break;
 367                 case SocketOptionName_Linger:
 368                         *system_name = SO_LINGER;
 369                         break;
 370                 case SocketOptionName_OutOfBandInline:
 371                         *system_name = SO_OOBINLINE;
 372                         break;
 373                 case SocketOptionName_SendBuffer:
 374                         *system_name = SO_SNDBUF;
 375                         break;
 376                 case SocketOptionName_ReceiveBuffer:
 377                         *system_name = SO_RCVBUF;
 378                         break;
 379                 case SocketOptionName_SendLowWater:
 380                         *system_name = SO_SNDLOWAT;
 381                         break;
 382                 case SocketOptionName_ReceiveLowWater:
 383                         *system_name = SO_RCVLOWAT;
 384                         break;
 385                 case SocketOptionName_SendTimeout:
 386                         *system_name = SO_SNDTIMEO;
 387                         break;
 388                 case SocketOptionName_ReceiveTimeout:
 389                         *system_name = SO_RCVTIMEO;
 390                         break;
 391                 case SocketOptionName_Error:
 392                         *system_name = SO_ERROR;
 393                         break;
 394                 case SocketOptionName_Type:
 395                         *system_name = SO_TYPE;
 396                         break;
 397 #ifdef SO_PEERCRED
 398                 case SocketOptionName_PeerCred:
 399                         *system_name = SO_PEERCRED;
 400                         break;
 401 #endif
 402                 case SocketOptionName_ExclusiveAddressUse:
 403 #ifdef SO_EXCLUSIVEADDRUSE
 404                         *system_name = SO_EXCLUSIVEADDRUSE;
 405                         break;
 406 #endif
 407                 case SocketOptionName_UseLoopback:
 408 #ifdef SO_USELOOPBACK
 409                         *system_name = SO_USELOOPBACK;
 410                         break;
 411 #endif
 412                 case SocketOptionName_MaxConnections:
 413 #ifdef SO_MAXCONN
 414                         *system_name = SO_MAXCONN;
 415                         break;
 416 #elif defined(SOMAXCONN)
 417                         *system_name = SOMAXCONN;
 418                         break;
 419 #endif
 420                 default:
 421                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at Socket level", mono_name);
 422                         return(-1);
 423                 }
 424                 break;
 425
 426         case SocketOptionLevel_IP:
 427 #ifdef HAVE_SOL_IP
 428                 *system_level = SOL_IP;
 429 #else
 430                 if (1) {
 431                         static int cached = 0;
 432                         static int proto;
 433
 434                         if (!cached) {
 435                                 struct protoent *pent;
 436
 437                                 pent = getprotobyname ("IP");
 438                                 proto = pent ? pent->p_proto : 0 /* 0 a good default value?? */;
 439                                 cached = 1;
 440                         }
 441
 442                         *system_level = proto;
 443                 }
 444 #endif /* HAVE_SOL_IP */
 445
 446                 switch(mono_name) {
 447                 case SocketOptionName_IPOptions:
 448                         *system_name = IP_OPTIONS;
 449                         break;
 450 #ifdef IP_HDRINCL
 451                 case SocketOptionName_HeaderIncluded:
 452                         *system_name = IP_HDRINCL;
 453                         break;
 454 #endif
 455 #ifdef IP_TOS
 456                 case SocketOptionName_TypeOfService:
 457                         *system_name = IP_TOS;
 458                         break;
 459 #endif
 460 #ifdef IP_TTL
 461                 case SocketOptionName_IpTimeToLive:
 462                         *system_name = IP_TTL;
 463                         break;
 464 #endif
 465                 case SocketOptionName_MulticastInterface:
 466                         *system_name = IP_MULTICAST_IF;
 467                         break;
 468                 case SocketOptionName_MulticastTimeToLive:
 469                         *system_name = IP_MULTICAST_TTL;
 470                         break;
 471                 case SocketOptionName_MulticastLoopback:
 472                         *system_name = IP_MULTICAST_LOOP;
 473                         break;
 474                 case SocketOptionName_AddMembership:
 475                         *system_name = IP_ADD_MEMBERSHIP;
 476                         break;
 477                 case SocketOptionName_DropMembership:
 478                         *system_name = IP_DROP_MEMBERSHIP;
 479                         break;
 480 #ifdef HAVE_IP_PKTINFO
 481                 case SocketOptionName_PacketInformation:
 482                         *system_name = IP_PKTINFO;
 483                         break;
 484 #endif /* HAVE_IP_PKTINFO */
 485
 486                 case SocketOptionName_DontFragment:
 487 #ifdef HAVE_IP_DONTFRAGMENT
 488                         *system_name = IP_DONTFRAGMENT;
 489                         break;
 490 #elif defined HAVE_IP_MTU_DISCOVER
 491                         /* Not quite the same */
 492                         *system_name = IP_MTU_DISCOVER;
 493                         break;
 494 #else
 495                         /* If the flag is not available on this system, we can ignore this error */
 496                         return (-2);
 497 #endif /* HAVE_IP_DONTFRAGMENT */
 498                 case SocketOptionName_AddSourceMembership:
 499                 case SocketOptionName_DropSourceMembership:
 500                 case SocketOptionName_BlockSource:
 501                 case SocketOptionName_UnblockSource:
 502                         /* Can't figure out how to map these, so fall
 503                          * through
 504                          */
 505                 default:
 506                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IP level", mono_name);
 507                         return(-1);
 508                 }
 509                 break;
 510
 511 #ifdef AF_INET6
 512         case SocketOptionLevel_IPv6:
 513 #ifdef HAVE_SOL_IPV6
 514                 *system_level = SOL_IPV6;
 515 #else
 516                 if (1) {
 517                         static int cached = 0;
 518                         static int proto;
 519
 520                         if (!cached) {
 521                                 struct protoent *pent;
 522
 523                                 pent = getprotobyname ("IPV6");
 524                                 proto = pent ? pent->p_proto : 41 /* 41 a good default value?? */;
 525                                 cached = 1;
 526                         }
 527
 528                         *system_level = proto;
 529                 }
 530 #endif /* HAVE_SOL_IPV6 */
 531
 532                 switch(mono_name) {
 533                 case SocketOptionName_IpTimeToLive:
 534                         *system_name = IPV6_UNICAST_HOPS;
 535                         break;
 536                 case SocketOptionName_MulticastInterface:
 537                         *system_name = IPV6_MULTICAST_IF;
 538                         break;
 539                 case SocketOptionName_MulticastTimeToLive:
 540                         *system_name = IPV6_MULTICAST_HOPS;
 541                         break;
 542                 case SocketOptionName_MulticastLoopback:
 543                         *system_name = IPV6_MULTICAST_LOOP;
 544                         break;
 545                 case SocketOptionName_AddMembership:
 546                         *system_name = IPV6_JOIN_GROUP;
 547                         break;
 548                 case SocketOptionName_DropMembership:
 549                         *system_name = IPV6_LEAVE_GROUP;
 550                         break;
 551                 case SocketOptionName_PacketInformation:
 552 #ifdef HAVE_IPV6_PKTINFO
 553                         *system_name = IPV6_PKTINFO;
 554 #endif
 555                         break;
 556                 case SocketOptionName_HeaderIncluded:
 557                 case SocketOptionName_IPOptions:
 558                 case SocketOptionName_TypeOfService:
 559                 case SocketOptionName_DontFragment:
 560                 case SocketOptionName_AddSourceMembership:
 561                 case SocketOptionName_DropSourceMembership:
 562                 case SocketOptionName_BlockSource:
 563                 case SocketOptionName_UnblockSource:
 564                         /* Can't figure out how to map these, so fall
 565                          * through
 566                          */
 567                 default:
 568                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IPv6 level", mono_name);
 569                         return(-1);
 570                 }
 571
 572                 break;  /* SocketOptionLevel_IPv6 */
 573 #endif
 574
 575         case SocketOptionLevel_Tcp:
 576 #ifdef HAVE_SOL_TCP
 577                 *system_level = SOL_TCP;
 578 #else
 579                 if (1) {
 580                         static int cached = 0;
 581                         static int proto;
 582
 583                         if (!cached) {
 584                                 struct protoent *pent;
 585
 586                                 pent = getprotobyname ("TCP");
 587                                 proto = pent ? pent->p_proto : 6 /* is 6 a good default value?? */;
 588                                 cached = 1;
 589                         }
 590
 591                         *system_level = proto;
 592                 }
 593 #endif /* HAVE_SOL_TCP */
 594
 595                 switch(mono_name) {
 596                 case SocketOptionName_NoDelay:
 597                         *system_name = TCP_NODELAY;
 598                         break;
 599 #if 0
 600                         /* The documentation is talking complete
 601                          * bollocks here: rfc-1222 is titled
 602                          * 'Advancing the NSFNET Routing Architecture'
 603                          * and doesn't mention either of the words
 604                          * "expedite" or "urgent".
 605                          */
 606                 case SocketOptionName_BsdUrgent:
 607                 case SocketOptionName_Expedited:
 608 #endif
 609                 default:
 610                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at TCP level", mono_name);
 611                         return(-1);
 612                 }
 613                 break;
 614
 615         case SocketOptionLevel_Udp:
 616                 g_warning("System.Net.Sockets.SocketOptionLevel has unsupported value 0x%x", mono_level);
 617
 618                 switch(mono_name) {
 619                 case SocketOptionName_NoChecksum:
 620                 case SocketOptionName_ChecksumCoverage:
 621                 default:
 622                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at UDP level", mono_name);
 623                         return(-1);
 624                 }
 625                 return(-1);
 626                 break;
 627
 628         default:
 629                 g_warning("System.Net.Sockets.SocketOptionLevel has unknown value 0x%x", mono_level);
 630                 return(-1);
 631         }
 632
 633         return(0);
 634 }
 635
 636 static MonoImage *get_socket_assembly (void)
 637 {
 638         static const char *version = NULL;
 639         static gboolean moonlight;
 640         static MonoImage *socket_assembly = NULL;
 641
 642         if (version == NULL) {
 643                 version = mono_get_runtime_info ()->framework_version;
 644                 moonlight = !strcmp (version, "2.1");
 645         }
 646
 647         if (socket_assembly == NULL) {
 648                 if (moonlight) {
 649                         socket_assembly = mono_image_loaded ("System.Net");
 650                         if (!socket_assembly) {
 651                                 MonoAssembly *sa = mono_assembly_open ("System.Net.dll", NULL);
 652
 653                                 if (!sa) {
 654                                         g_assert_not_reached ();
 655                                 } else {
 656                                         socket_assembly = mono_assembly_get_image (sa);
 657                                 }
 658                         }
 659                 } else {
 660                         socket_assembly = mono_image_loaded ("System");
 661                         if (!socket_assembly) {
 662                                 MonoAssembly *sa = mono_assembly_open ("System.dll", NULL);
 663
 664                                 if (!sa) {
 665                                         g_assert_not_reached ();
 666                                 } else {
 667                                         socket_assembly = mono_assembly_get_image (sa);
 668                                 }
 669                         }
 670                 }
 671         }
 672
 673         return(socket_assembly);
 674 }
 675
 676 #ifdef AF_INET6
 677 static gint32 get_family_hint(void)
 678 {
 679         MonoDomain *domain = mono_domain_get ();
 680
 681         if (!domain->inet_family_hint) {
 682                 MonoClass *socket_class;
 683                 MonoClassField *ipv6_field, *ipv4_field;
 684                 gint32 ipv6_enabled = -1, ipv4_enabled = -1;
 685                 MonoVTable *vtable;
 686
 687                 socket_class = mono_class_from_name (get_socket_assembly (), "System.Net.Sockets", "Socket");
 688                 ipv4_field = mono_class_get_field_from_name (socket_class, "ipv4Supported");
 689                 ipv6_field = mono_class_get_field_from_name (socket_class, "ipv6Supported");
 690                 vtable = mono_class_vtable (mono_domain_get (), socket_class);
 691                 mono_runtime_class_init (vtable);
 692
 693                 mono_field_static_get_value (vtable, ipv4_field, &ipv4_enabled);
 694                 mono_field_static_get_value (vtable, ipv6_field, &ipv6_enabled);
 695
 696                 mono_domain_lock (domain);
 697                 if (ipv4_enabled == 1 && ipv6_enabled == 1) {
 698                         domain->inet_family_hint = 1;
 699                 } else if (ipv4_enabled == 1) {
 700                         domain->inet_family_hint = 2;
 701                 } else {
 702                         domain->inet_family_hint = 3;
 703                 }
 704                 mono_domain_unlock (domain);
 705         }
 706         switch (domain->inet_family_hint) {
 707         case 1: return PF_UNSPEC;
 708         case 2: return PF_INET;
 709         case 3: return PF_INET6;
 710         default:
 711                 return PF_UNSPEC;
 712         }
 713 }
 714 #endif
 715
 716 gpointer ves_icall_System_Net_Sockets_Socket_Socket_internal(MonoObject *this, gint32 family, gint32 type, gint32 proto, gint32 *error)
 717 {
 718         SOCKET sock;
 719         gint32 sock_family;
 720         gint32 sock_proto;
 721         gint32 sock_type;
 722
 723         MONO_ARCH_SAVE_REGS;
 724
 725         *error = 0;
 726
 727         sock_family=convert_family(family);
 728         if(sock_family==-1) {
 729                 *error = WSAEAFNOSUPPORT;
 730                 return(NULL);
 731         }
 732
 733         sock_proto=convert_proto(proto);
 734         if(sock_proto==-1) {
 735                 *error = WSAEPROTONOSUPPORT;
 736                 return(NULL);
 737         }
 738
 739         sock_type=convert_type(type);
 740         if(sock_type==-1) {
 741                 *error = WSAESOCKTNOSUPPORT;
 742                 return(NULL);
 743         }
 744
 745         sock = _wapi_socket (sock_family, sock_type, sock_proto,
 746                              NULL, 0, WSA_FLAG_OVERLAPPED);
 747
 748         if(sock==INVALID_SOCKET) {
 749                 *error = WSAGetLastError ();
 750                 return(NULL);
 751         }
 752
 753         if (sock_family == AF_INET && sock_type == SOCK_DGRAM) {
 754                 return (GUINT_TO_POINTER (sock));
 755         }
 756
 757 #ifdef AF_INET6
 758         if (sock_family == AF_INET6 && sock_type == SOCK_DGRAM) {
 759                 return (GUINT_TO_POINTER (sock));
 760         }
 761 #endif
 762
 763         return(GUINT_TO_POINTER (sock));
 764 }
 765
 766 /* FIXME: the SOCKET parameter (here and in other functions in this
 767  * file) is really an IntPtr which needs to be converted to a guint32.
 768  */
 769 void ves_icall_System_Net_Sockets_Socket_Close_internal(SOCKET sock,
 770                                                         gint32 *error)
 771 {
 772         MONO_ARCH_SAVE_REGS;
 773
 774 #ifdef DEBUG
 775         g_message (G_GNUC_PRETTY_FUNCTION ": closing 0x%x", sock);
 776 #endif
 777
 778         *error = 0;
 779
 780         /* Clear any pending work item from this socket if the underlying
 781          * polling system does not notify when the socket is closed */
 782         mono_thread_pool_remove_socket (GPOINTER_TO_INT (sock));
 783         closesocket(sock);
 784 }
 785
 786 gint32 ves_icall_System_Net_Sockets_SocketException_WSAGetLastError_internal(void)
 787 {
 788         MONO_ARCH_SAVE_REGS;
 789
 790 #ifdef DEBUG
 791         g_message(G_GNUC_PRETTY_FUNCTION ": returning %d", WSAGetLastError());
 792 #endif
 793
 794         return(WSAGetLastError());
 795 }
 796
 797 gint32 ves_icall_System_Net_Sockets_Socket_Available_internal(SOCKET sock,
 798                                                               gint32 *error)
 799 {
 800         int ret;
 801         int amount;
 802
 803         MONO_ARCH_SAVE_REGS;
 804
 805         *error = 0;
 806
 807         ret=ioctlsocket(sock, FIONREAD, &amount);
 808         if(ret==SOCKET_ERROR) {
 809                 *error = WSAGetLastError ();
 810                 return(0);
 811         }
 812
 813         return(amount);
 814 }
 815
 816 void ves_icall_System_Net_Sockets_Socket_Blocking_internal(SOCKET sock,
 817                                                            gboolean block,
 818                                                            gint32 *error)
 819 {
 820         int ret;
 821
 822         MONO_ARCH_SAVE_REGS;
 823
 824         *error = 0;
 825
 826         /*
 827          * block == TRUE/FALSE means we will block/not block.
 828          * But the ioctlsocket call takes TRUE/FALSE for non-block/block
 829          */
 830         block = !block;
 831
 832         ret = ioctlsocket (sock, FIONBIO, (gulong *) &block);
 833         if(ret==SOCKET_ERROR) {
 834                 *error = WSAGetLastError ();
 835         }
 836 }
 837
 838 gpointer ves_icall_System_Net_Sockets_Socket_Accept_internal(SOCKET sock,
 839                                                              gint32 *error,
 840                                                              gboolean blocking)
 841 {
 842         SOCKET newsock;
 843
 844         MONO_ARCH_SAVE_REGS;
 845
 846         *error = 0;
 847
 848 #ifdef PLATFORM_WIN32
 849         /* Several applications are getting stuck during shutdown on Windows
 850          * when an accept call is on a background thread.
 851          *
 852          */
 853         if (blocking) {
 854                 MonoThread* curthread = mono_thread_current ();
 855
 856                 if (curthread) {
 857                         for (;;) {
 858                                 int selectret;
 859                                 int optlen = sizeof (gint);
 860                                 TIMEVAL timeout;
 861                                 fd_set readfds;
 862                                 FD_ZERO (&readfds);
 863                                 FD_SET(sock, &readfds);
 864                                 timeout.tv_sec = 0;
 865                                 timeout.tv_usec = 1000;
 866                                 selectret = select (0, &readfds, NULL, NULL, &timeout);
 867                                 if (selectret > 0)
 868                                         break;
 869                                 if (curthread->state & ThreadState_StopRequested)
 870                                         return NULL;
 871                                 /* A negative return from select means that an error has occurred.
 872                                  * Let _wapi_accept handle that.*/
 873                                 if (selectret != 0)
 874                                         break;
 875                                 /* The socket's state may have changed.  If it is no longer listening, stop.*/
 876                                 if (!getsockopt (sock, SOL_SOCKET, SO_ACCEPTCONN, (char*)&selectret, &optlen)) {
 877                                         if (!selectret)
 878                                                 break;
 879                                 }
 880                         }
 881                 }
 882         }
 883 #endif
 884
 885         newsock = _wapi_accept (sock, NULL, 0);
 886         if(newsock==INVALID_SOCKET) {
 887                 *error = WSAGetLastError ();
 888                 return(NULL);
 889         }
 890
 891         return(GUINT_TO_POINTER (newsock));
 892 }
 893
 894 void ves_icall_System_Net_Sockets_Socket_Listen_internal(SOCKET sock,
 895                                                          guint32 backlog,
 896                                                          gint32 *error)
 897 {
 898         int ret;
 899
 900         MONO_ARCH_SAVE_REGS;
 901
 902         *error = 0;
 903
 904         ret = _wapi_listen (sock, backlog);
 905         if(ret==SOCKET_ERROR) {
 906                 *error = WSAGetLastError ();
 907         }
 908 }
 909
 910 static MonoObject *create_object_from_sockaddr(struct sockaddr *saddr,
 911                                                int sa_size, gint32 *error)
 912 {
 913         MonoDomain *domain = mono_domain_get ();
 914         MonoObject *sockaddr_obj;
 915         MonoClass *sockaddr_class;
 916         MonoClassField *field;
 917         MonoArray *data;
 918         MonoAddressFamily family;
 919
 920         /* Build a System.Net.SocketAddress object instance */
 921         sockaddr_class=mono_class_from_name_cached (get_socket_assembly (), "System.Net", "SocketAddress");
 922         sockaddr_obj=mono_object_new(domain, sockaddr_class);
 923
 924         /* Locate the SocketAddress data buffer in the object */
 925         field=mono_class_get_field_from_name_cached (sockaddr_class, "data");
 926
 927         /* Make sure there is space for the family and size bytes */
 928 #ifdef HAVE_SYS_UN_H
 929         if (saddr->sa_family == AF_UNIX) {
 930                 /* sa_len includes the entire sockaddr size, so we don't need the
 931                  * N bytes (sizeof (unsigned short)) of the family. */
 932                 data=mono_array_new_cached(domain, mono_get_byte_class (), sa_size);
 933         } else
 934 #endif
 935         {
 936                 /* May be the +2 here is too conservative, as sa_len returns
 937                  * the length of the entire sockaddr_in/in6, including
 938                  * sizeof (unsigned short) of the family */
 939                 data=mono_array_new_cached(domain, mono_get_byte_class (), sa_size+2);
 940         }
 941
 942         /* The data buffer is laid out as follows:
 943          * bytes 0 and 1 are the address family
 944          * bytes 2 and 3 are the port info
 945          * the rest is the address info
 946          */
 947
 948         family=convert_to_mono_family(saddr->sa_family);
 949         if(family==AddressFamily_Unknown) {
 950                 *error = WSAEAFNOSUPPORT;
 951                 return(NULL);
 952         }
 953
 954         mono_array_set(data, guint8, 0, family & 0x0FF);
 955         mono_array_set(data, guint8, 1, (family >> 8) & 0x0FF);
 956
 957         if(saddr->sa_family==AF_INET) {
 958                 struct sockaddr_in *sa_in=(struct sockaddr_in *)saddr;
 959                 guint16 port=ntohs(sa_in->sin_port);
 960                 guint32 address=ntohl(sa_in->sin_addr.s_addr);
 961
 962                 if(sa_size<8) {
 963                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 964                 }
 965
 966                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 967                 mono_array_set(data, guint8, 3, (port) & 0xff);
 968                 mono_array_set(data, guint8, 4, (address>>24) & 0xff);
 969                 mono_array_set(data, guint8, 5, (address>>16) & 0xff);
 970                 mono_array_set(data, guint8, 6, (address>>8) & 0xff);
 971                 mono_array_set(data, guint8, 7, (address) & 0xff);
 972
 973                 mono_field_set_value (sockaddr_obj, field, data);
 974
 975                 return(sockaddr_obj);
 976 #ifdef AF_INET6
 977         } else if (saddr->sa_family == AF_INET6) {
 978                 struct sockaddr_in6 *sa_in=(struct sockaddr_in6 *)saddr;
 979                 int i;
 980
 981                 guint16 port=ntohs(sa_in->sin6_port);
 982
 983                 if(sa_size<28) {
 984                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 985                 }
 986
 987                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 988                 mono_array_set(data, guint8, 3, (port) & 0xff);
 989
 990                 for(i=0; i<16; i++) {
 991                         mono_array_set(data, guint8, 8+i,
 992                                        sa_in->sin6_addr.s6_addr[i]);
 993                 }
 994
 995                 mono_array_set(data, guint8, 24, sa_in->sin6_scope_id & 0xff);
 996                 mono_array_set(data, guint8, 25,
 997                                (sa_in->sin6_scope_id >> 8) & 0xff);
 998                 mono_array_set(data, guint8, 26,
 999                                (sa_in->sin6_scope_id >> 16) & 0xff);
1000                 mono_array_set(data, guint8, 27,
1001                                (sa_in->sin6_scope_id >> 24) & 0xff);
1002
1003                 mono_field_set_value (sockaddr_obj, field, data);
1004
1005                 return(sockaddr_obj);
1006 #endif
1007 #ifdef HAVE_SYS_UN_H
1008         } else if (saddr->sa_family == AF_UNIX) {
1009                 int i;
1010
1011                 for (i = 0; i < sa_size; i++) {
1012                         mono_array_set (data, guint8, i+2, saddr->sa_data[i]);
1013                 }
1014
1015                 mono_field_set_value (sockaddr_obj, field, data);
1016
1017                 return sockaddr_obj;
1018 #endif
1019         } else {
1020                 *error = WSAEAFNOSUPPORT;
1021                 return(NULL);
1022         }
1023 }
1024
1025 extern MonoObject *ves_icall_System_Net_Sockets_Socket_LocalEndPoint_internal(SOCKET sock, gint32 *error)
1026 {
1027         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1028         socklen_t salen;
1029         int ret;
1030
1031         MONO_ARCH_SAVE_REGS;
1032
1033         *error = 0;
1034
1035         salen=sizeof(sa);
1036         ret = _wapi_getsockname (sock, (struct sockaddr *)sa, &salen);
1037
1038         if(ret==SOCKET_ERROR) {
1039                 *error = WSAGetLastError ();
1040                 return(NULL);
1041         }
1042
1043 #ifdef DEBUG
1044         g_message(G_GNUC_PRETTY_FUNCTION ": bound to %s port %d", inet_ntoa(((struct sockaddr_in *)&sa)->sin_addr), ntohs(((struct sockaddr_in *)&sa)->sin_port));
1045 #endif
1046
1047         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1048                                            error));
1049 }
1050
1051 extern MonoObject *ves_icall_System_Net_Sockets_Socket_RemoteEndPoint_internal(SOCKET sock, gint32 *error)
1052 {
1053         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1054         socklen_t salen;
1055         int ret;
1056
1057         MONO_ARCH_SAVE_REGS;
1058
1059         *error = 0;
1060
1061         salen=sizeof(sa);
1062         ret = _wapi_getpeername (sock, (struct sockaddr *)sa, &salen);
1063
1064         if(ret==SOCKET_ERROR) {
1065                 *error = WSAGetLastError ();
1066                 return(NULL);
1067         }
1068
1069 #ifdef DEBUG
1070         g_message(G_GNUC_PRETTY_FUNCTION ": connected to %s port %d", inet_ntoa(((struct sockaddr_in *)&sa)->sin_addr), ntohs(((struct sockaddr_in *)&sa)->sin_port));
1071 #endif
1072
1073         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1074                                            error));
1075 }
1076
1077 static struct sockaddr *create_sockaddr_from_object(MonoObject *saddr_obj,
1078                                                     socklen_t *sa_size,
1079                                                     gint32 *error)
1080 {
1081         MonoClassField *field;
1082         MonoArray *data;
1083         gint32 family;
1084         int len;
1085
1086         /* Dig the SocketAddress data buffer out of the object */
1087         field=mono_class_get_field_from_name(saddr_obj->vtable->klass, "data");
1088         data=*(MonoArray **)(((char *)saddr_obj) + field->offset);
1089
1090         /* The data buffer is laid out as follows:
1091          * byte 0 is the address family low byte
1092          * byte 1 is the address family high byte
1093          * INET:
1094          *      bytes 2 and 3 are the port info
1095          *      the rest is the address info
1096          * UNIX:
1097          *      the rest is the file name
1098          */
1099         len = mono_array_length (data);
1100         if (len < 2) {
1101                 mono_raise_exception (mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
1102         }
1103
1104         family = convert_family (mono_array_get (data, guint8, 0) + (mono_array_get (data, guint8, 1) << 8));
1105         if (family == AF_INET) {
1106                 struct sockaddr_in *sa;
1107                 guint16 port;
1108                 guint32 address;
1109
1110                 if (len < 8) {
1111                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1112                 }
1113
1114                 sa = g_new0 (struct sockaddr_in, 1);
1115                 port = (mono_array_get (data, guint8, 2) << 8) +
1116                         mono_array_get (data, guint8, 3);
1117                 address = (mono_array_get (data, guint8, 4) << 24) +
1118                         (mono_array_get (data, guint8, 5) << 16 ) +
1119                         (mono_array_get (data, guint8, 6) << 8) +
1120                         mono_array_get (data, guint8, 7);
1121
1122                 sa->sin_family = family;
1123                 sa->sin_addr.s_addr = htonl (address);
1124                 sa->sin_port = htons (port);
1125
1126                 *sa_size = sizeof(struct sockaddr_in);
1127                 return((struct sockaddr *)sa);
1128
1129 #ifdef AF_INET6
1130         } else if (family == AF_INET6) {
1131                 struct sockaddr_in6 *sa;
1132                 int i;
1133                 guint16 port;
1134                 guint32 scopeid;
1135
1136                 if (len < 28) {
1137                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1138                 }
1139
1140                 sa = g_new0 (struct sockaddr_in6, 1);
1141                 port = mono_array_get (data, guint8, 3) +
1142                         (mono_array_get (data, guint8, 2) << 8);
1143                 scopeid = mono_array_get (data, guint8, 24) +
1144                         (mono_array_get (data, guint8, 25) << 8) +
1145                         (mono_array_get (data, guint8, 26) << 16) +
1146                         (mono_array_get (data, guint8, 27) << 24);
1147
1148                 sa->sin6_family = family;
1149                 sa->sin6_port = htons (port);
1150                 sa->sin6_scope_id = scopeid;
1151
1152                 for(i=0; i<16; i++) {
1153                         sa->sin6_addr.s6_addr[i] = mono_array_get (data, guint8, 8+i);
1154                 }
1155
1156                 *sa_size = sizeof(struct sockaddr_in6);
1157                 return((struct sockaddr *)sa);
1158 #endif
1159 #ifdef HAVE_SYS_UN_H
1160         } else if (family == AF_UNIX) {
1161                 struct sockaddr_un *sock_un;
1162                 int i;
1163
1164                 /* Need a byte for the '\0' terminator/prefix, and the first
1165                  * two bytes hold the SocketAddress family
1166                  */
1167                 if (len - 2 >= MONO_SIZEOF_SUNPATH) {
1168                         mono_raise_exception (mono_get_exception_index_out_of_range ());
1169                 }
1170
1171                 sock_un = g_new0 (struct sockaddr_un, 1);
1172
1173                 sock_un->sun_family = family;
1174                 for (i = 0; i < len - 2; i++) {
1175                         sock_un->sun_path [i] = mono_array_get (data, guint8,
1176                                                                 i + 2);
1177                 }
1178
1179                 *sa_size = len;
1180
1181                 return (struct sockaddr *)sock_un;
1182 #endif
1183         } else {
1184                 *error = WSAEAFNOSUPPORT;
1185                 return(0);
1186         }
1187 }
1188
1189 extern void ves_icall_System_Net_Sockets_Socket_Bind_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1190 {
1191         struct sockaddr *sa;
1192         socklen_t sa_size;
1193         int ret;
1194
1195         MONO_ARCH_SAVE_REGS;
1196
1197         *error = 0;
1198
1199         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1200         if (*error != 0) {
1201                 return;
1202         }
1203
1204 #ifdef DEBUG
1205         g_message(G_GNUC_PRETTY_FUNCTION ": binding to %s port %d", inet_ntoa(((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port));
1206 #endif
1207
1208         ret = _wapi_bind (sock, sa, sa_size);
1209         if(ret==SOCKET_ERROR) {
1210                 *error = WSAGetLastError ();
1211         }
1212
1213         g_free(sa);
1214 }
1215
1216 enum {
1217         SelectModeRead,
1218         SelectModeWrite,
1219         SelectModeError
1220 };
1221
1222 MonoBoolean
1223 ves_icall_System_Net_Sockets_Socket_Poll_internal (SOCKET sock, gint mode,
1224                                                    gint timeout, gint32 *error)
1225 {
1226         MonoThread *thread = NULL;
1227         mono_pollfd *pfds;
1228         int ret;
1229         time_t start;
1230
1231
1232         MONO_ARCH_SAVE_REGS;
1233
1234         pfds = g_new0 (mono_pollfd, 1);
1235         pfds[0].fd = GPOINTER_TO_INT (sock);
1236         pfds[0].events = (mode == SelectModeRead) ? MONO_POLLIN :
1237                 (mode == SelectModeWrite) ? MONO_POLLOUT :
1238                 (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL);
1239
1240         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1241         start = time (NULL);
1242         do {
1243                 *error = 0;
1244
1245                 ret = mono_poll (pfds, 1, timeout);
1246                 if (timeout > 0 && ret < 0) {
1247                         int err = errno;
1248                         int sec = time (NULL) - start;
1249
1250                         timeout -= sec * 1000;
1251                         if (timeout < 0) {
1252                                 timeout = 0;
1253                         }
1254
1255                         errno = err;
1256                 }
1257
1258                 if (ret == -1 && errno == EINTR) {
1259                         int leave = 0;
1260
1261                         if (thread == NULL) {
1262                                 thread = mono_thread_current ();
1263                         }
1264
1265                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1266
1267                         if (leave != 0) {
1268                                 g_free (pfds);
1269                                 return(FALSE);
1270                         } else {
1271                                 /* Suspend requested? */
1272                                 mono_thread_interruption_checkpoint ();
1273                         }
1274                         errno = EINTR;
1275                 }
1276         } while (ret == -1 && errno == EINTR);
1277
1278         if (ret == -1) {
1279 #ifdef PLATFORM_WIN32
1280                 *error = WSAGetLastError ();
1281 #else
1282                 *error = errno_to_WSA (errno, __func__);
1283 #endif
1284                 g_free (pfds);
1285                 return(FALSE);
1286         }
1287
1288         g_free (pfds);
1289
1290         if (ret == 0) {
1291                 return(FALSE);
1292         } else {
1293                 return (TRUE);
1294         }
1295 }
1296
1297 extern void ves_icall_System_Net_Sockets_Socket_Connect_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1298 {
1299         struct sockaddr *sa;
1300         socklen_t sa_size;
1301         int ret;
1302
1303         MONO_ARCH_SAVE_REGS;
1304
1305         *error = 0;
1306
1307         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1308         if (*error != 0) {
1309                 return;
1310         }
1311
1312 #ifdef DEBUG
1313         g_message(G_GNUC_PRETTY_FUNCTION ": connecting to %s port %d", inet_ntoa(((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port));
1314 #endif
1315
1316         ret = _wapi_connect (sock, sa, sa_size);
1317         if(ret==SOCKET_ERROR) {
1318                 *error = WSAGetLastError ();
1319         }
1320
1321         g_free(sa);
1322 }
1323
1324 /* These #defines from mswsock.h from wine.  Defining them here allows
1325  * us to build this file on a mingw box that doesn't know the magic
1326  * numbers, but still run on a newer windows box that does.
1327  */
1328 #ifndef WSAID_DISCONNECTEX
1329 #define WSAID_DISCONNECTEX {0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
1330 typedef BOOL (WINAPI *LPFN_DISCONNECTEX)(SOCKET, LPOVERLAPPED, DWORD, DWORD);
1331 #endif
1332
1333 #ifndef WSAID_TRANSMITFILE
1334 #define WSAID_TRANSMITFILE {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
1335 typedef BOOL (WINAPI *LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
1336 #endif
1337
1338 extern void ves_icall_System_Net_Sockets_Socket_Disconnect_internal(SOCKET sock, MonoBoolean reuse, gint32 *error)
1339 {
1340         int ret;
1341         glong output_bytes = 0;
1342         GUID disco_guid = WSAID_DISCONNECTEX;
1343         GUID trans_guid = WSAID_TRANSMITFILE;
1344         LPFN_DISCONNECTEX _wapi_disconnectex = NULL;
1345         LPFN_TRANSMITFILE _wapi_transmitfile = NULL;
1346         gboolean bret;
1347
1348         MONO_ARCH_SAVE_REGS;
1349
1350         *error = 0;
1351
1352 #ifdef DEBUG
1353         g_message("%s: disconnecting from socket %p (reuse %d)", __func__,
1354                   sock, reuse);
1355 #endif
1356
1357         /* I _think_ the extension function pointers need to be looked
1358          * up for each socket.  FIXME: check the best way to store
1359          * pointers to functions in managed objects that still works
1360          * on 64bit platforms.
1361          */
1362         ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1363                         (void *)&disco_guid, sizeof(GUID),
1364                         (void *)&_wapi_disconnectex, sizeof(void *),
1365                         &output_bytes, NULL, NULL);
1366         if (ret != 0) {
1367                 /* make sure that WSAIoctl didn't put crap in the
1368                  * output pointer
1369                  */
1370                 _wapi_disconnectex = NULL;
1371
1372                 /* Look up the TransmitFile extension function pointer
1373                  * instead of calling TransmitFile() directly, because
1374                  * apparently "Several of the extension functions have
1375                  * been available since WinSock 1.1 and are exported
1376                  * from MSWsock.dll, however it's not advisable to
1377                  * link directly to this dll as this ties you to the
1378                  * Microsoft WinSock provider. A provider neutral way
1379                  * of accessing these extension functions is to load
1380                  * them dynamically via WSAIoctl using the
1381                  * SIO_GET_EXTENSION_FUNCTION_POINTER op code. This
1382                  * should, theoretically, allow you to access these
1383                  * functions from any provider that supports them..."
1384                  * (http://www.codeproject.com/internet/jbsocketserver3.asp)
1385                  */
1386                 ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1387                                 (void *)&trans_guid, sizeof(GUID),
1388                                 (void *)&_wapi_transmitfile, sizeof(void *),
1389                                 &output_bytes, NULL, NULL);
1390                 if (ret != 0) {
1391                         _wapi_transmitfile = NULL;
1392                 }
1393         }
1394
1395         if (_wapi_disconnectex != NULL) {
1396                 bret = _wapi_disconnectex (sock, NULL, TF_REUSE_SOCKET, 0);
1397         } else if (_wapi_transmitfile != NULL) {
1398                 bret = _wapi_transmitfile (sock, NULL, 0, 0, NULL, NULL,
1399                                            TF_DISCONNECT | TF_REUSE_SOCKET);
1400         } else {
1401                 *error = ERROR_NOT_SUPPORTED;
1402                 return;
1403         }
1404
1405         if (bret == FALSE) {
1406                 *error = WSAGetLastError ();
1407         }
1408 }
1409
1410 gint32 ves_icall_System_Net_Sockets_Socket_Receive_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1411 {
1412         int ret;
1413         guchar *buf;
1414         gint32 alen;
1415         int recvflags=0;
1416
1417         MONO_ARCH_SAVE_REGS;
1418
1419         *error = 0;
1420
1421         alen = mono_array_length (buffer);
1422         if (offset > alen - count) {
1423                 return(0);
1424         }
1425
1426         buf=mono_array_addr(buffer, guchar, offset);
1427
1428         recvflags = convert_socketflags (flags);
1429         if (recvflags == -1) {
1430                 *error = WSAEOPNOTSUPP;
1431                 return (0);
1432         }
1433
1434         ret = _wapi_recv (sock, buf, count, recvflags);
1435         if(ret==SOCKET_ERROR) {
1436                 *error = WSAGetLastError ();
1437                 return(0);
1438         }
1439
1440         return(ret);
1441 }
1442
1443 gint32 ves_icall_System_Net_Sockets_Socket_Receive_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1444 {
1445         int ret, count;
1446         DWORD recv;
1447         WSABUF *wsabufs;
1448         DWORD recvflags = 0;
1449
1450         MONO_ARCH_SAVE_REGS;
1451
1452         *error = 0;
1453
1454         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1455         count = mono_array_length (buffers);
1456
1457         recvflags = convert_socketflags (flags);
1458         if (recvflags == -1) {
1459                 *error = WSAEOPNOTSUPP;
1460                 return(0);
1461         }
1462
1463         ret = WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL);
1464         if (ret == SOCKET_ERROR) {
1465                 *error = WSAGetLastError ();
1466                 return(0);
1467         }
1468
1469         return(recv);
1470 }
1471
1472 gint32 ves_icall_System_Net_Sockets_Socket_RecvFrom_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject **sockaddr, gint32 *error)
1473 {
1474         int ret;
1475         guchar *buf;
1476         gint32 alen;
1477         int recvflags=0;
1478         struct sockaddr *sa;
1479         socklen_t sa_size;
1480
1481         MONO_ARCH_SAVE_REGS;
1482
1483         *error = 0;
1484
1485         alen = mono_array_length (buffer);
1486         if (offset > alen - count) {
1487                 return(0);
1488         }
1489
1490         sa=create_sockaddr_from_object(*sockaddr, &sa_size, error);
1491         if (*error != 0) {
1492                 return(0);
1493         }
1494
1495         buf=mono_array_addr(buffer, guchar, offset);
1496
1497         recvflags = convert_socketflags (flags);
1498         if (recvflags == -1) {
1499                 *error = WSAEOPNOTSUPP;
1500                 return (0);
1501         }
1502
1503         ret = _wapi_recvfrom (sock, buf, count, recvflags, sa, &sa_size);
1504         if(ret==SOCKET_ERROR) {
1505                 g_free(sa);
1506                 *error = WSAGetLastError ();
1507                 return(0);
1508         }
1509
1510         /* If we didn't get a socket size, then we're probably a
1511          * connected connection-oriented socket and the stack hasn't
1512          * returned the remote address. All we can do is return null.
1513          */
1514         if ( sa_size != 0 )
1515                 *sockaddr=create_object_from_sockaddr(sa, sa_size, error);
1516         else
1517                 *sockaddr=NULL;
1518
1519         g_free(sa);
1520
1521         return(ret);
1522 }
1523
1524 gint32 ves_icall_System_Net_Sockets_Socket_Send_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1525 {
1526         int ret;
1527         guchar *buf;
1528         gint32 alen;
1529         int sendflags=0;
1530
1531         MONO_ARCH_SAVE_REGS;
1532
1533         *error = 0;
1534
1535         alen = mono_array_length (buffer);
1536         if (offset > alen - count) {
1537                 return(0);
1538         }
1539
1540 #ifdef DEBUG
1541         g_message(G_GNUC_PRETTY_FUNCTION ": alen: %d", alen);
1542 #endif
1543
1544         buf=mono_array_addr(buffer, guchar, offset);
1545
1546 #ifdef DEBUG
1547         g_message(G_GNUC_PRETTY_FUNCTION ": Sending %d bytes", count);
1548 #endif
1549
1550         sendflags = convert_socketflags (flags);
1551         if (sendflags == -1) {
1552                 *error = WSAEOPNOTSUPP;
1553                 return (0);
1554         }
1555
1556         ret = _wapi_send (sock, buf, count, sendflags);
1557         if(ret==SOCKET_ERROR) {
1558                 *error = WSAGetLastError ();
1559                 return(0);
1560         }
1561
1562         return(ret);
1563 }
1564
1565 gint32 ves_icall_System_Net_Sockets_Socket_Send_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1566 {
1567         int ret, count;
1568         DWORD sent;
1569         WSABUF *wsabufs;
1570         DWORD sendflags = 0;
1571
1572         MONO_ARCH_SAVE_REGS;
1573
1574         *error = 0;
1575
1576         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1577         count = mono_array_length (buffers);
1578
1579         sendflags = convert_socketflags (flags);
1580         if (sendflags == -1) {
1581                 *error = WSAEOPNOTSUPP;
1582                 return(0);
1583         }
1584
1585         ret = WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL);
1586         if (ret == SOCKET_ERROR) {
1587                 *error = WSAGetLastError ();
1588                 return(0);
1589         }
1590
1591         return(sent);
1592 }
1593
1594 gint32 ves_icall_System_Net_Sockets_Socket_SendTo_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject *sockaddr, gint32 *error)
1595 {
1596         int ret;
1597         guchar *buf;
1598         gint32 alen;
1599         int sendflags=0;
1600         struct sockaddr *sa;
1601         socklen_t sa_size;
1602
1603         MONO_ARCH_SAVE_REGS;
1604
1605         *error = 0;
1606
1607         alen = mono_array_length (buffer);
1608         if (offset > alen - count) {
1609                 return(0);
1610         }
1611
1612         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1613         if(*error != 0) {
1614                 return(0);
1615         }
1616
1617 #ifdef DEBUG
1618         g_message(G_GNUC_PRETTY_FUNCTION ": alen: %d", alen);
1619 #endif
1620
1621         buf=mono_array_addr(buffer, guchar, offset);
1622
1623 #ifdef DEBUG
1624         g_message(G_GNUC_PRETTY_FUNCTION ": Sending %d bytes", count);
1625 #endif
1626
1627         sendflags = convert_socketflags (flags);
1628         if (sendflags == -1) {
1629                 *error = WSAEOPNOTSUPP;
1630                 return (0);
1631         }
1632
1633         ret = _wapi_sendto (sock, buf, count, sendflags, sa, sa_size);
1634         if(ret==SOCKET_ERROR) {
1635                 *error = WSAGetLastError ();
1636         }
1637
1638         g_free(sa);
1639
1640         return(ret);
1641 }
1642
1643 static SOCKET Socket_to_SOCKET(MonoObject *sockobj)
1644 {
1645         SOCKET sock;
1646         MonoClassField *field;
1647
1648         field=mono_class_get_field_from_name(sockobj->vtable->klass, "socket");
1649         sock=GPOINTER_TO_INT (*(gpointer *)(((char *)sockobj)+field->offset));
1650
1651         return(sock);
1652 }
1653
1654 #define POLL_ERRORS (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL)
1655 void ves_icall_System_Net_Sockets_Socket_Select_internal(MonoArray **sockets, gint32 timeout, gint32 *error)
1656 {
1657         MonoThread *thread = NULL;
1658         MonoObject *obj;
1659         mono_pollfd *pfds;
1660         int nfds, idx;
1661         int ret;
1662         int i, count;
1663         int mode;
1664         MonoClass *sock_arr_class;
1665         MonoArray *socks;
1666         time_t start;
1667         mono_array_size_t socks_size;
1668
1669         MONO_ARCH_SAVE_REGS;
1670
1671         /* *sockets -> READ, null, WRITE, null, ERROR, null */
1672         count = mono_array_length (*sockets);
1673         nfds = count - 3; /* NULL separators */
1674         pfds = g_new0 (mono_pollfd, nfds);
1675         mode = idx = 0;
1676         for (i = 0; i < count; i++) {
1677                 obj = mono_array_get (*sockets, MonoObject *, i);
1678                 if (obj == NULL) {
1679                         mode++;
1680                         continue;
1681                 }
1682
1683                 if (idx >= nfds) {
1684                         /* The socket array was bogus */
1685                         g_free (pfds);
1686                         *error = WSAEFAULT;
1687                         return;
1688                 }
1689
1690                 pfds [idx].fd = Socket_to_SOCKET (obj);
1691                 pfds [idx].events = (mode == 0) ? MONO_POLLIN : (mode == 1) ? MONO_POLLOUT : POLL_ERRORS;
1692                 idx++;
1693         }
1694
1695         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1696         start = time (NULL);
1697         do {
1698                 *error = 0;
1699                 ret = mono_poll (pfds, nfds, timeout);
1700                 if (timeout > 0 && ret < 0) {
1701                         int err = errno;
1702                         int sec = time (NULL) - start;
1703
1704                         timeout -= sec * 1000;
1705                         if (timeout < 0)
1706                                 timeout = 0;
1707                         errno = err;
1708                 }
1709
1710                 if (ret == -1 && errno == EINTR) {
1711                         int leave = 0;
1712                         if (thread == NULL)
1713                                 thread = mono_thread_current ();
1714
1715                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1716
1717                         if (leave != 0) {
1718                                 g_free (pfds);
1719                                 *sockets = NULL;
1720                                 return;
1721                         } else {
1722                                 /* Suspend requested? */
1723                                 mono_thread_interruption_checkpoint ();
1724                         }
1725                         errno = EINTR;
1726                 }
1727         } while (ret == -1 && errno == EINTR);
1728
1729         if (ret == -1) {
1730 #ifdef PLATFORM_WIN32
1731                 *error = WSAGetLastError ();
1732 #else
1733                 *error = errno_to_WSA (errno, __func__);
1734 #endif
1735                 g_free (pfds);
1736                 return;
1737         }
1738
1739         if (ret == 0) {
1740                 g_free (pfds);
1741                 *sockets = NULL;
1742                 return;
1743         }
1744
1745         sock_arr_class= ((MonoObject *)*sockets)->vtable->klass;
1746         socks_size = ((mono_array_size_t)ret) + 3; /* space for the NULL delimiters */
1747         socks = mono_array_new_full (mono_domain_get (), sock_arr_class, &socks_size, NULL);
1748
1749         mode = idx = 0;
1750         for (i = 0; i < count && ret > 0; i++) {
1751                 mono_pollfd *pfd;
1752
1753                 obj = mono_array_get (*sockets, MonoObject *, i);
1754                 if (obj == NULL) {
1755                         mode++;
1756                         idx++;
1757                         continue;
1758                 }
1759
1760                 pfd = &pfds [i - mode];
1761                 if (pfd->revents == 0)
1762                         continue;
1763
1764                 ret--;
1765                 if (mode == 0 && (pfd->revents & (MONO_POLLIN | POLL_ERRORS)) != 0) {
1766                         mono_array_setref (socks, idx++, obj);
1767                 } else if (mode == 1 && (pfd->revents & (MONO_POLLOUT | POLL_ERRORS)) != 0) {
1768                         mono_array_setref (socks, idx++, obj);
1769                 } else if ((pfd->revents & POLL_ERRORS) != 0) {
1770                         mono_array_setref (socks, idx++, obj);
1771                 }
1772         }
1773
1774         *sockets = socks;
1775         g_free (pfds);
1776 }
1777
1778 static MonoObject* int_to_object (MonoDomain *domain, int val)
1779 {
1780         return mono_value_box (domain, mono_get_int32_class (), &val);
1781 }
1782
1783
1784 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_obj_internal(SOCKET sock, gint32 level, gint32 name, MonoObject **obj_val, gint32 *error)
1785 {
1786         int system_level;
1787         int system_name;
1788         int ret;
1789         int val;
1790         socklen_t valsize=sizeof(val);
1791         struct linger linger;
1792         socklen_t lingersize=sizeof(linger);
1793         int time_ms = 0;
1794         socklen_t time_ms_size = sizeof (time_ms);
1795 #ifdef SO_PEERCRED
1796         struct ucred cred;
1797         socklen_t credsize = sizeof(cred);
1798 #endif
1799         MonoDomain *domain=mono_domain_get();
1800         MonoObject *obj;
1801         MonoClass *obj_class;
1802         MonoClassField *field;
1803
1804         MONO_ARCH_SAVE_REGS;
1805
1806         *error = 0;
1807
1808         ret=convert_sockopt_level_and_name(level, name, &system_level,
1809                                            &system_name);
1810         if(ret==-1) {
1811                 *error = WSAENOPROTOOPT;
1812                 return;
1813         }
1814         if (ret == -2) {
1815                 *obj_val = int_to_object (domain, 0);
1816                 return;
1817         }
1818
1819         /* No need to deal with MulticastOption names here, because
1820          * you cant getsockopt AddMembership or DropMembership (the
1821          * int getsockopt will error, causing an exception)
1822          */
1823         switch(name) {
1824         case SocketOptionName_Linger:
1825         case SocketOptionName_DontLinger:
1826                 ret = _wapi_getsockopt(sock, system_level, system_name, &linger,
1827                                &lingersize);
1828                 break;
1829
1830         case SocketOptionName_SendTimeout:
1831         case SocketOptionName_ReceiveTimeout:
1832                 ret = _wapi_getsockopt (sock, system_level, system_name, (char *) &time_ms, &time_ms_size);
1833                 break;
1834
1835 #ifdef SO_PEERCRED
1836         case SocketOptionName_PeerCred:
1837                 ret = _wapi_getsockopt (sock, system_level, system_name, &cred,
1838                                         &credsize);
1839                 break;
1840 #endif
1841
1842         default:
1843                 ret = _wapi_getsockopt (sock, system_level, system_name, &val,
1844                                &valsize);
1845         }
1846
1847         if(ret==SOCKET_ERROR) {
1848                 *error = WSAGetLastError ();
1849                 return;
1850         }
1851
1852         switch(name) {
1853         case SocketOptionName_Linger:
1854                 /* build a System.Net.Sockets.LingerOption */
1855                 obj_class=mono_class_from_name(get_socket_assembly (),
1856                                                "System.Net.Sockets",
1857                                                "LingerOption");
1858                 obj=mono_object_new(domain, obj_class);
1859
1860                 /* Locate and set the fields "bool enabled" and "int
1861                  * seconds"
1862                  */
1863                 field=mono_class_get_field_from_name(obj_class, "enabled");
1864                 *(guint8 *)(((char *)obj)+field->offset)=linger.l_onoff;
1865
1866                 field=mono_class_get_field_from_name(obj_class, "seconds");
1867                 *(guint32 *)(((char *)obj)+field->offset)=linger.l_linger;
1868
1869                 break;
1870
1871         case SocketOptionName_DontLinger:
1872                 /* construct a bool int in val - true if linger is off */
1873                 obj = int_to_object (domain, !linger.l_onoff);
1874                 break;
1875
1876         case SocketOptionName_SendTimeout:
1877         case SocketOptionName_ReceiveTimeout:
1878                 obj = int_to_object (domain, time_ms);
1879                 break;
1880
1881 #ifdef SO_PEERCRED
1882         case SocketOptionName_PeerCred:
1883         {
1884                 /* build a Mono.Posix.PeerCred+PeerCredData if
1885                  * possible
1886                  */
1887                 static MonoImage *mono_posix_image = NULL;
1888                 MonoPeerCredData *cred_data;
1889
1890                 if (mono_posix_image == NULL) {
1891                         mono_posix_image=mono_image_loaded ("Mono.Posix");
1892                         if (!mono_posix_image) {
1893                                 MonoAssembly *sa = mono_assembly_open ("Mono.Posix.dll", NULL);
1894                                 if (!sa) {
1895                                         *error = WSAENOPROTOOPT;
1896                                         return;
1897                                 } else {
1898                                         mono_posix_image = mono_assembly_get_image (sa);
1899                                 }
1900                         }
1901                 }
1902
1903                 obj_class = mono_class_from_name(mono_posix_image,
1904                                                  "Mono.Posix",
1905                                                  "PeerCredData");
1906                 obj = mono_object_new(domain, obj_class);
1907                 cred_data = (MonoPeerCredData *)obj;
1908                 cred_data->pid = cred.pid;
1909                 cred_data->uid = cred.uid;
1910                 cred_data->gid = cred.gid;
1911                 break;
1912         }
1913 #endif
1914
1915         default:
1916                 obj = int_to_object (domain, val);
1917         }
1918
1919         *obj_val=obj;
1920 }
1921
1922 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_arr_internal(SOCKET sock, gint32 level, gint32 name, MonoArray **byte_val, gint32 *error)
1923 {
1924         int system_level;
1925         int system_name;
1926         int ret;
1927         guchar *buf;
1928         socklen_t valsize;
1929
1930         MONO_ARCH_SAVE_REGS;
1931
1932         *error = 0;
1933
1934         ret=convert_sockopt_level_and_name(level, name, &system_level,
1935                                            &system_name);
1936         if(ret==-1) {
1937                 *error = WSAENOPROTOOPT;
1938                 return;
1939         }
1940         if(ret==-2)
1941                 return;
1942
1943         valsize=mono_array_length(*byte_val);
1944         buf=mono_array_addr(*byte_val, guchar, 0);
1945
1946         ret = _wapi_getsockopt (sock, system_level, system_name, buf, &valsize);
1947         if(ret==SOCKET_ERROR) {
1948                 *error = WSAGetLastError ();
1949         }
1950 }
1951
1952 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
1953 static struct in_addr ipaddress_to_struct_in_addr(MonoObject *ipaddr)
1954 {
1955         struct in_addr inaddr;
1956         MonoClassField *field;
1957
1958         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Address");
1959
1960         /* No idea why .net uses a 64bit type to hold a 32bit value...
1961          *
1962          * Internal value of IPAddess is in little-endian order
1963          */
1964         inaddr.s_addr=GUINT_FROM_LE ((guint32)*(guint64 *)(((char *)ipaddr)+field->offset));
1965
1966         return(inaddr);
1967 }
1968 #endif
1969
1970 #ifdef AF_INET6
1971 static struct in6_addr ipaddress_to_struct_in6_addr(MonoObject *ipaddr)
1972 {
1973         struct in6_addr in6addr;
1974         MonoClassField *field;
1975         MonoArray *data;
1976         int i;
1977
1978         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Numbers");
1979         data=*(MonoArray **)(((char *)ipaddr) + field->offset);
1980
1981 /* Solaris has only the 8 bit version. */
1982 #ifndef s6_addr16
1983         for(i=0; i<8; i++) {
1984                 guint16 s = mono_array_get (data, guint16, i);
1985                 in6addr.s6_addr[2 * i] = (s >> 8) & 0xff;
1986                 in6addr.s6_addr[2 * i + 1] = s & 0xff;
1987         }
1988 #else
1989         for(i=0; i<8; i++)
1990                 in6addr.s6_addr16[i] = mono_array_get (data, guint16, i);
1991 #endif
1992         return(in6addr);
1993 }
1994 #endif /* AF_INET6 */
1995
1996 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)
1997 {
1998         int system_level;
1999         int system_name;
2000         int ret;
2001 #ifdef AF_INET6
2002         int sol_ip;
2003         int sol_ipv6;
2004
2005         *error = 0;
2006
2007 #ifdef HAVE_SOL_IPV6
2008         sol_ipv6 = SOL_IPV6;
2009 #else
2010         {
2011                 struct protoent *pent;
2012                 pent = getprotobyname ("ipv6");
2013                 sol_ipv6 = (pent != NULL) ? pent->p_proto : 41;
2014         }
2015 #endif
2016
2017 #ifdef HAVE_SOL_IP
2018         sol_ip = SOL_IP;
2019 #else
2020         {
2021                 struct protoent *pent;
2022                 pent = getprotobyname ("ip");
2023                 sol_ip = (pent != NULL) ? pent->p_proto : 0;
2024         }
2025 #endif
2026 #endif /* AF_INET6 */
2027
2028         MONO_ARCH_SAVE_REGS;
2029
2030         ret=convert_sockopt_level_and_name(level, name, &system_level,
2031                                            &system_name);
2032         if(ret==-1) {
2033                 *error = WSAENOPROTOOPT;
2034                 return;
2035         }
2036         if(ret==-2){
2037                 return;
2038         }
2039
2040         /* Only one of obj_val, byte_val or int_val has data */
2041         if(obj_val!=NULL) {
2042                 MonoClassField *field;
2043                 struct linger linger;
2044                 int valsize;
2045
2046                 switch(name) {
2047                 case SocketOptionName_DontLinger:
2048                         linger.l_onoff=0;
2049                         linger.l_linger=0;
2050                         valsize=sizeof(linger);
2051                         ret = _wapi_setsockopt (sock, system_level,
2052                                                 system_name, &linger, valsize);
2053                         break;
2054
2055                 case SocketOptionName_Linger:
2056                         /* Dig out "bool enabled" and "int seconds"
2057                          * fields
2058                          */
2059                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "enabled");
2060                         linger.l_onoff=*(guint8 *)(((char *)obj_val)+field->offset);
2061                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "seconds");
2062                         linger.l_linger=*(guint32 *)(((char *)obj_val)+field->offset);
2063
2064                         valsize=sizeof(linger);
2065                         ret = _wapi_setsockopt (sock, system_level,
2066                                                 system_name, &linger, valsize);
2067                         break;
2068                 case SocketOptionName_AddMembership:
2069                 case SocketOptionName_DropMembership:
2070 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2071                 {
2072                         MonoObject *address = NULL;
2073
2074 #ifdef AF_INET6
2075                         if(system_level == sol_ipv6) {
2076                                 struct ipv6_mreq mreq6;
2077
2078                                 /*
2079                                  *      Get group address
2080                                  */
2081                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2082                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2083
2084                                 if(address) {
2085                                         mreq6.ipv6mr_multiaddr = ipaddress_to_struct_in6_addr (address);
2086                                 }
2087
2088                                 field=mono_class_get_field_from_name(obj_val->vtable->klass, "ifIndex");
2089                                 mreq6.ipv6mr_interface =*(guint64 *)(((char *)obj_val)+field->offset);
2090
2091                                 ret = _wapi_setsockopt (sock, system_level,
2092                                                         system_name, &mreq6,
2093                                                         sizeof (mreq6));
2094                         } else if(system_level == sol_ip)
2095 #endif /* AF_INET6 */
2096                         {
2097 #ifdef HAVE_STRUCT_IP_MREQN
2098                                 struct ip_mreqn mreq = {{0}};
2099 #else
2100                                 struct ip_mreq mreq = {{0}};
2101 #endif /* HAVE_STRUCT_IP_MREQN */
2102
2103                                 /* pain! MulticastOption holds two IPAddress
2104                                  * members, so I have to dig the value out of
2105                                  * those :-(
2106                                  */
2107                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2108                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2109
2110                                 /* address might not be defined and if so, set the address to ADDR_ANY.
2111                                  */
2112                                 if(address) {
2113                                         mreq.imr_multiaddr = ipaddress_to_struct_in_addr (address);
2114                                 }
2115
2116                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "local");
2117                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2118
2119 #ifdef HAVE_STRUCT_IP_MREQN
2120                                 if(address) {
2121                                         mreq.imr_address = ipaddress_to_struct_in_addr (address);
2122                                 }
2123 #else
2124                                 if(address) {
2125                                         mreq.imr_interface = ipaddress_to_struct_in_addr (address);
2126                                 }
2127 #endif /* HAVE_STRUCT_IP_MREQN */
2128
2129                                 ret = _wapi_setsockopt (sock, system_level,
2130                                                         system_name, &mreq,
2131                                                         sizeof (mreq));
2132                         }
2133                         break;
2134                 }
2135 #endif /* HAVE_STRUCT_IP_MREQN || HAVE_STRUCT_IP_MREQ */
2136                 default:
2137                         /* Cause an exception to be thrown */
2138                         *error = WSAEINVAL;
2139                         return;
2140                 }
2141         } else if (byte_val!=NULL) {
2142                 int valsize=mono_array_length(byte_val);
2143                 guchar *buf=mono_array_addr(byte_val, guchar, 0);
2144
2145                 ret = _wapi_setsockopt (sock, system_level, system_name, buf, valsize);
2146                 if(ret==SOCKET_ERROR) {
2147                         *error = WSAGetLastError ();
2148                         return;
2149                 }
2150         } else {
2151                 /* ReceiveTimeout/SendTimeout get here */
2152                 switch(name) {
2153                 case SocketOptionName_DontFragment:
2154 #ifdef HAVE_IP_MTU_DISCOVER
2155                         /* Fiddle with the value slightly if we're
2156                          * turning DF on
2157                          */
2158                         if (int_val == 1) {
2159                                 int_val = IP_PMTUDISC_DO;
2160                         }
2161                         /* Fall through */
2162 #endif
2163
2164                 default:
2165                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2166                 }
2167         }
2168
2169         if(ret==SOCKET_ERROR) {
2170                 *error = WSAGetLastError ();
2171         }
2172 }
2173
2174 void ves_icall_System_Net_Sockets_Socket_Shutdown_internal(SOCKET sock,
2175                                                            gint32 how,
2176                                                            gint32 *error)
2177 {
2178         int ret;
2179
2180         MONO_ARCH_SAVE_REGS;
2181
2182         *error = 0;
2183
2184         /* Currently, the values for how (recv=0, send=1, both=2) match
2185          * the BSD API
2186          */
2187         ret = _wapi_shutdown (sock, how);
2188         if(ret==SOCKET_ERROR) {
2189                 *error = WSAGetLastError ();
2190         }
2191 }
2192
2193 gint
2194 ves_icall_System_Net_Sockets_Socket_WSAIoctl (SOCKET sock, gint32 code,
2195                                               MonoArray *input,
2196                                               MonoArray *output, gint32 *error)
2197 {
2198         glong output_bytes = 0;
2199         gchar *i_buffer, *o_buffer;
2200         gint i_len, o_len;
2201         gint ret;
2202
2203         MONO_ARCH_SAVE_REGS;
2204
2205         *error = 0;
2206
2207         if (code == FIONBIO) {
2208                 /* Invalid command. Must use Socket.Blocking */
2209                 return -1;
2210         }
2211
2212         if (input == NULL) {
2213                 i_buffer = NULL;
2214                 i_len = 0;
2215         } else {
2216                 i_buffer = mono_array_addr (input, gchar, 0);
2217                 i_len = mono_array_length (input);
2218         }
2219
2220         if (output == NULL) {
2221                 o_buffer = NULL;
2222                 o_len = 0;
2223         } else {
2224                 o_buffer = mono_array_addr (output, gchar, 0);
2225                 o_len = mono_array_length (output);
2226         }
2227
2228         ret = WSAIoctl (sock, code, i_buffer, i_len, o_buffer, o_len, &output_bytes, NULL, NULL);
2229         if (ret == SOCKET_ERROR) {
2230                 *error = WSAGetLastError ();
2231                 return(-1);
2232         }
2233
2234         return (gint) output_bytes;
2235 }
2236
2237 #ifdef HAVE_SIOCGIFCONF
2238 static gboolean
2239 is_loopback (int family, void *ad)
2240 {
2241         char *ptr = (char *) ad;
2242
2243         if (family == AF_INET) {
2244                 return (ptr [0] == 127);
2245         }
2246 #ifdef AF_INET6
2247         else {
2248                 return (IN6_IS_ADDR_LOOPBACK ((struct in6_addr *) ptr));
2249         }
2250 #endif
2251         return FALSE;
2252 }
2253
2254 static void *
2255 get_local_ips (int family, int *nips)
2256 {
2257         int addr_size, offset, fd, i, count;
2258         int max_ifaces = 50; /* 50 interfaces should be enough... */
2259         struct ifconf ifc;
2260         struct ifreq *ifr;
2261         struct ifreq iflags;
2262         char *result, *tmp_ptr;
2263         gboolean ignore_loopback = FALSE;
2264
2265         *nips = 0;
2266         if (family == AF_INET) {
2267                 addr_size = sizeof (struct in_addr);
2268                 offset = G_STRUCT_OFFSET (struct sockaddr_in, sin_addr);
2269 #ifdef AF_INET6
2270         } else if (family == AF_INET6) {
2271                 addr_size = sizeof (struct in6_addr);
2272                 offset = G_STRUCT_OFFSET (struct sockaddr_in6, sin6_addr);
2273 #endif
2274         } else {
2275                 return NULL;
2276         }
2277
2278         fd = socket (family, SOCK_STREAM, 0);
2279
2280         ifc.ifc_len = max_ifaces * sizeof (struct ifreq);
2281         ifc.ifc_buf = g_malloc (ifc.ifc_len);
2282         if (ioctl (fd, SIOCGIFCONF, &ifc) < 0) {
2283                 close (fd);
2284                 g_free (ifc.ifc_buf);
2285                 return NULL;
2286         }
2287
2288         count = ifc.ifc_len / sizeof (struct ifreq);
2289         *nips = count;
2290         if (count == 0) {
2291                 g_free (ifc.ifc_buf);
2292                 close (fd);
2293                 return NULL;
2294         }
2295
2296         for (i = 0, ifr = ifc.ifc_req; i < *nips; i++, ifr++) {
2297                 strcpy (iflags.ifr_name, ifr->ifr_name);
2298                 if (ioctl (fd, SIOCGIFFLAGS, &iflags) < 0) {
2299                         continue;
2300                 }
2301
2302                 if ((iflags.ifr_flags & IFF_UP) == 0) {
2303                         ifr->ifr_name [0] = '\0';
2304                         continue;
2305                 }
2306
2307                 if ((iflags.ifr_flags & IFF_LOOPBACK) == 0) {
2308                         ignore_loopback = TRUE;
2309                 }
2310         }
2311
2312         close (fd);
2313         result = g_malloc (addr_size * count);
2314         tmp_ptr = result;
2315         for (i = 0, ifr = ifc.ifc_req; i < count; i++, ifr++) {
2316                 if (ifr->ifr_name [0] == '\0') {
2317                         (*nips)--;
2318                         continue;
2319                 }
2320
2321                 if (ignore_loopback && is_loopback (family, ((char *) &ifr->ifr_addr) + offset)) {
2322                         (*nips)--;
2323                         continue;
2324                 }
2325
2326                 memcpy (tmp_ptr, ((char *) &ifr->ifr_addr) + offset, addr_size);
2327                 tmp_ptr += addr_size;
2328         }
2329
2330         g_free (ifc.ifc_buf);
2331         return result;
2332 }
2333 #else
2334 static void *
2335 get_local_ips (int family, int *nips)
2336 {
2337         *nips = 0;
2338         return NULL;
2339 }
2340
2341 #endif /* HAVE_SIOCGIFCONF */
2342
2343 #ifndef AF_INET6
2344 static gboolean hostent_to_IPHostEntry(struct hostent *he, MonoString **h_name,
2345                                        MonoArray **h_aliases,
2346                                        MonoArray **h_addr_list,
2347                                        gboolean add_local_ips)
2348 {
2349         MonoDomain *domain = mono_domain_get ();
2350         int i = 0;
2351         struct in_addr *local_in = NULL;
2352         int nlocal_in = 0;
2353
2354         if (he != NULL) {
2355                 if(he->h_length!=4 || he->h_addrtype!=AF_INET) {
2356                         return(FALSE);
2357                 }
2358
2359                 *h_name=mono_string_new(domain, he->h_name);
2360
2361                 while(he->h_aliases[i]!=NULL) {
2362                         i++;
2363                 }
2364
2365                 *h_aliases=mono_array_new(domain, mono_get_string_class (), i);
2366                 i=0;
2367                 while(he->h_aliases[i]!=NULL) {
2368                         MonoString *alias;
2369
2370                         alias=mono_string_new(domain, he->h_aliases[i]);
2371                         mono_array_setref (*h_aliases, i, alias);
2372                         i++;
2373                 }
2374         } else if (!add_local_ips) {
2375                 return FALSE;
2376         }
2377
2378         if (add_local_ips) {
2379                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2380                 if (nlocal_in) {
2381                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), nlocal_in);
2382                         for (i = 0; i < nlocal_in; i++) {
2383                                 MonoString *addr_string;
2384                                 char addr [16], *ptr;
2385
2386                                 ptr = (char *) &local_in [i];
2387                                 g_snprintf(addr, 16, "%u.%u.%u.%u",
2388                                          (unsigned char) ptr [0],
2389                                          (unsigned char) ptr [1],
2390                                          (unsigned char) ptr [2],
2391                                          (unsigned char) ptr [3]);
2392
2393                                 addr_string = mono_string_new (domain, addr);
2394                                 mono_array_setref (*h_addr_list, i, addr_string);
2395                                 i++;
2396                         }
2397
2398                         g_free (local_in);
2399                 } else if (he == NULL) {
2400                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2401                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2402                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2403                         return TRUE;
2404                 }
2405         }
2406
2407         if (nlocal_in == 0 && he != NULL) {
2408                 i = 0;
2409                 while (he->h_addr_list[i]!=NULL) {
2410                         i++;
2411                 }
2412
2413                 *h_addr_list=mono_array_new(domain, mono_get_string_class (), i);
2414                 i=0;
2415                 while(he->h_addr_list[i]!=NULL) {
2416                         MonoString *addr_string;
2417                         char addr[16];
2418
2419                         g_snprintf(addr, 16, "%u.%u.%u.%u",
2420                                  (unsigned char)he->h_addr_list[i][0],
2421                                  (unsigned char)he->h_addr_list[i][1],
2422                                  (unsigned char)he->h_addr_list[i][2],
2423                                  (unsigned char)he->h_addr_list[i][3]);
2424
2425                         addr_string=mono_string_new(domain, addr);
2426                         mono_array_setref (*h_addr_list, i, addr_string);
2427                         i++;
2428                 }
2429         }
2430
2431         return(TRUE);
2432 }
2433
2434 static gboolean ipaddr_to_IPHostEntry(const char *addr, MonoString **h_name,
2435                                       MonoArray **h_aliases,
2436                                       MonoArray **h_addr_list)
2437 {
2438         MonoDomain *domain = mono_domain_get ();
2439
2440         *h_name=mono_string_new(domain, addr);
2441         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2442         *h_addr_list=mono_array_new(domain, mono_get_string_class (), 1);
2443         mono_array_setref (*h_addr_list, 0, *h_name);
2444
2445         return(TRUE);
2446 }
2447 #endif
2448
2449 #if defined(AF_INET6) && defined(HAVE_GETHOSTBYNAME2_R)
2450 static gboolean hostent_to_IPHostEntry2(struct hostent *he1,struct hostent *he2, MonoString **h_name,
2451                                 MonoArray **h_aliases, MonoArray **h_addr_list, gboolean add_local_ips)
2452 {
2453         MonoDomain *domain = mono_domain_get ();
2454         int i, host_count, host_index, family_hint;
2455         struct in_addr *local_in = NULL;
2456         int nlocal_in = 0;
2457         struct in6_addr *local_in6 = NULL;
2458         int nlocal_in6 = 0;
2459         gboolean from_local = FALSE;
2460
2461         family_hint = get_family_hint ();
2462
2463         /*
2464          * Check if address length and family are correct
2465          */
2466         if (he1 != NULL && (he1->h_length!=4 || he1->h_addrtype!=AF_INET)) {
2467                 return(FALSE);
2468         }
2469
2470         if (he2 != NULL && (he2->h_length!=16 || he2->h_addrtype!=AF_INET6)) {
2471                 return(FALSE);
2472         }
2473
2474         /*
2475          * Get the aliases and host name from he1 or he2 whichever is
2476          * not null, if he1 is not null then take aliases from he1
2477          */
2478         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2479                             family_hint == PF_INET)) {
2480                 *h_name=mono_string_new (domain, he1->h_name);
2481
2482                 i=0;
2483                 while(he1->h_aliases[i]!=NULL) {
2484                         i++;
2485                 }
2486
2487                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2488                                            i);
2489                 i=0;
2490                 while(he1->h_aliases[i]!=NULL) {
2491                         MonoString *alias;
2492
2493                         alias=mono_string_new (domain, he1->h_aliases[i]);
2494                         mono_array_setref (*h_aliases, i, alias);
2495                         i++;
2496                 }
2497         } else if (he2 != NULL && (family_hint == PF_UNSPEC ||
2498                                    family_hint == PF_INET6)) {
2499                 *h_name=mono_string_new (domain, he2->h_name);
2500
2501                 i=0;
2502                 while(he2->h_aliases [i] != NULL) {
2503                         i++;
2504                 }
2505
2506                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2507                                            i);
2508                 i=0;
2509                 while(he2->h_aliases[i]!=NULL) {
2510                         MonoString *alias;
2511
2512                         alias=mono_string_new (domain, he2->h_aliases[i]);
2513                         mono_array_setref (*h_aliases, i, alias);
2514                         i++;
2515                 }
2516         } else if (!add_local_ips) {
2517                 return(FALSE);
2518         }
2519
2520         /*
2521          * Count the number of addresses in he1 + he2
2522          */
2523         host_count = 0;
2524         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2525                             family_hint == PF_INET)) {
2526                 i=0;
2527                 while(he1->h_addr_list[i]!=NULL) {
2528                         i++;
2529                         host_count++;
2530                 }
2531         }
2532
2533         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2534                             family_hint == PF_INET6)) {
2535                 i=0;
2536                 while(he2->h_addr_list[i]!=NULL) {
2537                         i++;
2538                         host_count++;
2539                 }
2540         }
2541
2542         /*
2543          * Fills the array
2544          */
2545         host_index = 0;
2546         if (add_local_ips) {
2547                 if (family_hint == PF_UNSPEC || family_hint == PF_INET)
2548                         local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2549
2550                 if (family_hint == PF_UNSPEC || family_hint == PF_INET6)
2551                         local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2552
2553                 if (nlocal_in || nlocal_in6) {
2554                         from_local = TRUE;
2555                         *h_addr_list = mono_array_new (domain, mono_get_string_class (),
2556                                                              nlocal_in + nlocal_in6);
2557
2558                         if (nlocal_in6) {
2559                                 int n;
2560                                 for (n = 0; n < nlocal_in6; n++) {
2561                                         MonoString *addr_string;
2562                                         const char *ret;
2563                                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes with the trailing NULL */
2564
2565                                         ret = inet_ntop (AF_INET6, &local_in6 [n], addr, sizeof(addr));
2566
2567                                         if (ret != NULL) {
2568                                                 addr_string = mono_string_new (domain, addr);
2569                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2570                                                 host_index++;
2571                                         }
2572                                 }
2573                         }
2574
2575                         if (nlocal_in) {
2576                                 int n;
2577                                 for (n = 0; n < nlocal_in; n++) {
2578                                         MonoString *addr_string;
2579                                         const char *ret;
2580                                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2581
2582                                         ret = inet_ntop (AF_INET, &local_in [n], addr, sizeof(addr));
2583
2584                                         if (ret != NULL) {
2585                                                 addr_string = mono_string_new (domain, addr);
2586                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2587                                                 host_index++;
2588                                         }
2589                                 }
2590                         }
2591                         g_free (local_in);
2592                         g_free (local_in6);
2593                         return TRUE;
2594                 } else if (he1 == NULL && he2 == NULL) {
2595                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2596                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2597                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2598                         g_free (local_in);
2599                         g_free (local_in6);
2600                         return TRUE;
2601                 }
2602
2603                 g_free (local_in);
2604                 g_free (local_in6);
2605         }
2606
2607         *h_addr_list=mono_array_new (domain, mono_get_string_class (), host_count);
2608
2609         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2610                             family_hint == PF_INET6)) {
2611                 i = 0;
2612                 while(he2->h_addr_list[i] != NULL) {
2613                         MonoString *addr_string;
2614                         const char *ret;
2615                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes long with the trailing NULL */
2616
2617                         ret = inet_ntop (AF_INET6, he2->h_addr_list[i], addr,
2618                                          sizeof(addr));
2619
2620                         if (ret != NULL) {
2621                                 addr_string = mono_string_new (domain, addr);
2622                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2623                                 i++;
2624                                 host_index++;
2625                         }
2626                 }
2627         }
2628
2629         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2630                             family_hint == PF_INET)) {
2631                 i=0;
2632                 while(he1->h_addr_list[i] != NULL) {
2633                         MonoString *addr_string;
2634                         const char *ret;
2635                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2636
2637                         ret = inet_ntop (AF_INET, he1->h_addr_list[i], addr,
2638                                          sizeof(addr));
2639
2640                         if (ret != NULL) {
2641                                 addr_string=mono_string_new (domain, addr);
2642                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2643                                 i++;
2644                                 host_index++;
2645                         }
2646                 }
2647         }
2648
2649         return(TRUE);
2650 }
2651 #endif
2652
2653 #if defined(AF_INET6)
2654 static gboolean
2655 addrinfo_to_IPHostEntry(struct addrinfo *info, MonoString **h_name,
2656                                                 MonoArray **h_aliases,
2657                                                 MonoArray **h_addr_list,
2658                                                 gboolean add_local_ips)
2659 {
2660         gint32 count, i;
2661         struct addrinfo *ai = NULL;
2662         struct in_addr *local_in = NULL;
2663         int nlocal_in = 0;
2664         struct in6_addr *local_in6 = NULL;
2665         int nlocal_in6 = 0;
2666         int addr_index;
2667
2668         MonoDomain *domain = mono_domain_get ();
2669
2670         addr_index = 0;
2671         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2672         if (add_local_ips) {
2673                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2674                 local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2675                 if (nlocal_in || nlocal_in6) {
2676                         *h_addr_list=mono_array_new(domain, mono_get_string_class (), nlocal_in + nlocal_in6);
2677                         if (nlocal_in) {
2678                                 MonoString *addr_string;
2679                                 char addr [16];
2680                                 int i;
2681
2682                                 for (i = 0; i < nlocal_in; i++) {
2683                                         inet_ntop (AF_INET, &local_in [i], addr, sizeof (addr));
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                         if (nlocal_in6) {
2691                                 MonoString *addr_string;
2692                                 const char *ret;
2693                                 char addr [48];
2694                                 int i;
2695
2696                                 for (i = 0; i < nlocal_in6; i++) {
2697                                         ret = inet_ntop (AF_INET6, &local_in6 [i], addr, sizeof (addr));
2698                                         if (ret != NULL) {
2699                                                 addr_string = mono_string_new (domain, addr);
2700                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2701                                                 addr_index++;
2702                                         }
2703                                 }
2704                         }
2705
2706                         g_free (local_in);
2707                         g_free (local_in6);
2708                         if (info) {
2709                                 freeaddrinfo (info);
2710                         }
2711                         return TRUE;
2712                 }
2713
2714                 g_free (local_in);
2715                 g_free (local_in6);
2716         }
2717
2718         for (count=0, ai=info; ai!=NULL; ai=ai->ai_next) {
2719                 if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6)
2720                         continue;
2721
2722                 count++;
2723         }
2724
2725         *h_addr_list=mono_array_new(domain, mono_get_string_class (), count);
2726
2727         for (ai=info, i=0; ai!=NULL; ai=ai->ai_next) {
2728                 MonoString *addr_string;
2729                 const char *ret;
2730                 char buffer [48]; /* Max. size for IPv6 */
2731
2732                 if((ai->ai_family != PF_INET) && (ai->ai_family != PF_INET6)) {
2733                         continue;
2734                 }
2735
2736                 if(ai->ai_family == PF_INET) {
2737                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr), buffer, 16);
2738                 } else {
2739                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr), buffer, 48);
2740                 }
2741
2742                 if(ret) {
2743                         addr_string=mono_string_new(domain, buffer);
2744                 } else {
2745                         addr_string=mono_string_new(domain, "");
2746                 }
2747
2748                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2749
2750                 if(!i) {
2751                         if (ai->ai_canonname != NULL) {
2752                                 *h_name=mono_string_new(domain, ai->ai_canonname);
2753                         } else {
2754                                 *h_name=mono_string_new(domain, buffer);
2755                         }
2756                 }
2757
2758                 addr_index++;
2759         }
2760
2761         if(info) {
2762                 freeaddrinfo(info);
2763         }
2764
2765         return(TRUE);
2766 }
2767 #endif
2768
2769 #ifdef AF_INET6
2770 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2771 {
2772         gboolean add_local_ips = FALSE;
2773 #ifdef HAVE_SIOCGIFCONF
2774         gchar this_hostname [256];
2775 #endif
2776 #if !defined(HAVE_GETHOSTBYNAME2_R)
2777         struct addrinfo *info = NULL, hints;
2778         char *hostname;
2779
2780         MONO_ARCH_SAVE_REGS;
2781
2782         hostname=mono_string_to_utf8 (host);
2783         if (*hostname == '\0')
2784                 add_local_ips = TRUE;
2785 #ifdef HAVE_SIOCGIFCONF
2786         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2787                 if (!strcmp (hostname, this_hostname))
2788                         add_local_ips = TRUE;
2789         }
2790 #endif
2791
2792         memset(&hints, 0, sizeof(hints));
2793         hints.ai_family = get_family_hint ();
2794         hints.ai_socktype = SOCK_STREAM;
2795         hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
2796
2797         if (*hostname && getaddrinfo(hostname, NULL, &hints, &info) == -1) {
2798                 return(FALSE);
2799         }
2800
2801         g_free(hostname);
2802
2803         return(addrinfo_to_IPHostEntry(info, h_name, h_aliases, h_addr_list, add_local_ips));
2804 #else
2805         struct hostent he1,*hp1, he2, *hp2;
2806         int buffer_size1, buffer_size2;
2807         char *buffer1, *buffer2;
2808         int herr;
2809         gboolean return_value;
2810         char *hostname;
2811
2812         MONO_ARCH_SAVE_REGS;
2813
2814         hostname=mono_string_to_utf8 (host);
2815         if (*hostname == '\0')
2816                 add_local_ips = TRUE;
2817
2818 #ifdef HAVE_SIOCGIFCONF
2819         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2820                 if (!strcmp (hostname, this_hostname))
2821                         add_local_ips = TRUE;
2822         }
2823 #endif
2824
2825         buffer_size1 = 512;
2826         buffer_size2 = 512;
2827         buffer1 = g_malloc0(buffer_size1);
2828         buffer2 = g_malloc0(buffer_size2);
2829
2830         hp1 = NULL;
2831         hp2 = NULL;
2832         while (*hostname && gethostbyname2_r(hostname, AF_INET, &he1, buffer1, buffer_size1,
2833                                 &hp1, &herr) == ERANGE) {
2834                 buffer_size1 *= 2;
2835                 buffer1 = g_realloc(buffer1, buffer_size1);
2836         }
2837
2838         if (*hostname && hp1 == NULL)
2839         {
2840                 while (gethostbyname2_r(hostname, AF_INET6, &he2, buffer2,
2841                                         buffer_size2, &hp2, &herr) == ERANGE) {
2842                         buffer_size2 *= 2;
2843                         buffer2 = g_realloc(buffer2, buffer_size2);
2844                 }
2845         }
2846
2847         return_value = hostent_to_IPHostEntry2(hp1, hp2, h_name, h_aliases,
2848                                                h_addr_list, add_local_ips);
2849
2850         g_free(buffer1);
2851         g_free(buffer2);
2852         g_free(hostname);
2853
2854         return(return_value);
2855 #endif /* HAVE_GETHOSTBYNAME2_R */
2856 }
2857 #else /* AF_INET6 */
2858 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2859 {
2860         struct hostent *he;
2861         char *hostname;
2862         gboolean add_local_ips = FALSE;
2863 #ifdef HAVE_SIOCGIFCONF
2864         gchar this_hostname [256];
2865 #endif
2866
2867         MONO_ARCH_SAVE_REGS;
2868
2869         hostname=mono_string_to_utf8(host);
2870         if (*hostname == '\0')
2871                 add_local_ips = TRUE;
2872 #ifdef HAVE_SIOCGIFCONF
2873         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2874                 if (!strcmp (hostname, this_hostname))
2875                         add_local_ips = TRUE;
2876         }
2877 #endif
2878
2879         he = NULL;
2880         if (*hostname)
2881                 he = _wapi_gethostbyname (hostname);
2882         g_free(hostname);
2883
2884         if (*hostname && he==NULL)
2885                 return(FALSE);
2886
2887         return(hostent_to_IPHostEntry(he, h_name, h_aliases, h_addr_list, add_local_ips));
2888 }
2889 #endif /* AF_INET6 */
2890
2891 #ifndef HAVE_INET_PTON
2892 static int
2893 inet_pton (int family, const char *address, void *inaddrp)
2894 {
2895         if (family == AF_INET) {
2896 #ifdef HAVE_INET_ATON
2897                 struct in_addr inaddr;
2898
2899                 if (!inet_aton (address, &inaddr))
2900                         return 0;
2901
2902                 memcpy (inaddrp, &inaddr, sizeof (struct in_addr));
2903                 return 1;
2904 #else
2905                 /* assume the system has inet_addr(), if it doesn't
2906                    have that we're pretty much screwed... */
2907                 guint32 inaddr;
2908
2909                 if (!strcmp (address, "255.255.255.255")) {
2910                         /* special-case hack */
2911                         inaddr = 0xffffffff;
2912                 } else {
2913                         inaddr = inet_addr (address);
2914 #ifndef INADDR_NONE
2915 #define INADDR_NONE ((in_addr_t) -1)
2916 #endif
2917                         if (inaddr == INADDR_NONE)
2918                                 return 0;
2919                 }
2920
2921                 memcpy (inaddrp, &inaddr, sizeof (guint32));
2922                 return 1;
2923 #endif /* HAVE_INET_ATON */
2924         }
2925
2926         return -1;
2927 }
2928 #endif /* !HAVE_INET_PTON */
2929
2930 extern MonoBoolean ves_icall_System_Net_Dns_GetHostByAddr_internal(MonoString *addr, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2931 {
2932         char *address;
2933         gboolean v1;
2934
2935 #ifdef AF_INET6
2936         struct sockaddr_in saddr;
2937         struct sockaddr_in6 saddr6;
2938         struct addrinfo *info = NULL, hints;
2939         gint32 family;
2940         char hostname[1024] = {0};
2941         int flags = 0;
2942 #else
2943         struct in_addr inaddr;
2944         struct hostent *he;
2945         gboolean ret;
2946 #endif
2947
2948         v1 = mono_framework_version () == 1;
2949
2950         address = mono_string_to_utf8 (addr);
2951
2952 #ifdef AF_INET6
2953         if (inet_pton (AF_INET, address, &saddr.sin_addr ) <= 0) {
2954                 /* Maybe an ipv6 address */
2955                 if (inet_pton (AF_INET6, address, &saddr6.sin6_addr) <= 0) {
2956                         g_free (address);
2957                         return FALSE;
2958                 }
2959                 else {
2960                         family = AF_INET6;
2961                         saddr6.sin6_family = AF_INET6;
2962                 }
2963         }
2964         else {
2965                 family = AF_INET;
2966                 saddr.sin_family = AF_INET;
2967         }
2968         g_free(address);
2969
2970         if (v1) {
2971                 flags = NI_NAMEREQD;
2972         }
2973
2974         if(family == AF_INET) {
2975 #if HAVE_SOCKADDR_IN_SIN_LEN
2976                 saddr.sin_len = sizeof (saddr);
2977 #endif
2978                 if(getnameinfo ((struct sockaddr*)&saddr, sizeof(saddr),
2979                                 hostname, sizeof(hostname), NULL, 0,
2980                                 flags) != 0) {
2981                         return(FALSE);
2982                 }
2983         } else if(family == AF_INET6) {
2984 #if HAVE_SOCKADDR_IN6_SIN_LEN
2985                 saddr6.sin6_len = sizeof (saddr6);
2986 #endif
2987                 if(getnameinfo ((struct sockaddr*)&saddr6, sizeof(saddr6),
2988                                 hostname, sizeof(hostname), NULL, 0,
2989                                 flags) != 0) {
2990                         return(FALSE);
2991                 }
2992         }
2993
2994         memset (&hints, 0, sizeof(hints));
2995         hints.ai_family = get_family_hint ();
2996         hints.ai_socktype = SOCK_STREAM;
2997         hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
2998
2999         if( getaddrinfo (hostname, NULL, &hints, &info) == -1 ) {
3000                 return(FALSE);
3001         }
3002
3003         return(addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, FALSE));
3004 #else
3005         if (inet_pton (AF_INET, address, &inaddr) <= 0) {
3006                 g_free (address);
3007                 return(FALSE);
3008         }
3009
3010         if ((he = gethostbyaddr ((char *) &inaddr, sizeof (inaddr), AF_INET)) == NULL) {
3011                 if (v1) {
3012                         ret = FALSE;
3013                 } else {
3014                         ret = ipaddr_to_IPHostEntry (address, h_name,
3015                                                      h_aliases, h_addr_list);
3016                 }
3017         } else {
3018                 ret = hostent_to_IPHostEntry (he, h_name, h_aliases,
3019                                               h_addr_list, FALSE);
3020         }
3021
3022         g_free (address);
3023         return(ret);
3024 #endif
3025 }
3026
3027 extern MonoBoolean ves_icall_System_Net_Dns_GetHostName_internal(MonoString **h_name)
3028 {
3029         gchar hostname[256];
3030         int ret;
3031
3032         MONO_ARCH_SAVE_REGS;
3033
3034         ret = gethostname (hostname, sizeof (hostname));
3035         if(ret==-1) {
3036                 return(FALSE);
3037         }
3038
3039         *h_name=mono_string_new(mono_domain_get (), hostname);
3040
3041         return(TRUE);
3042 }
3043
3044 void mono_network_init(void)
3045 {
3046         WSADATA wsadata;
3047         int err;
3048
3049         err=WSAStartup(MAKEWORD(2,0), &wsadata);
3050         if(err!=0) {
3051                 g_error(G_GNUC_PRETTY_FUNCTION ": Couldn't initialise networking");
3052                 exit(-1);
3053         }
3054
3055 #ifdef DEBUG
3056         g_message(G_GNUC_PRETTY_FUNCTION ": Using socket library: %s", wsadata.szDescription);
3057         g_message(G_GNUC_PRETTY_FUNCTION ": Socket system status: %s", wsadata.szSystemStatus);
3058 #endif
3059 }
3060
3061 void mono_network_cleanup(void)
3062 {
3063         WSACleanup();
3064 }
3065