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 #if 0
 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         if (sflags & SocketFlags_Partial)
 313 #ifdef MSG_MORE
 314                 flags |= MSG_MORE;
 315 #else
 316                 return -1;
 317 #endif
 318 #endif
 319         if (sflags & SocketFlags_MaxIOVectorLength)
 320                 /* FIXME: Don't know what to do for MaxIOVectorLength query */
 321                 return -1;
 322
 323         return (flags ? flags : -1);
 324 }
 325
 326 /*
 327  * Returns:
 328  *    0 on success (mapped mono_level and mono_name to system_level and system_name
 329  *   -1 on error
 330  *   -2 on non-fatal error (ie, must ignore)
 331  */
 332 static gint32 convert_sockopt_level_and_name(MonoSocketOptionLevel mono_level,
 333                                              MonoSocketOptionName mono_name,
 334                                              int *system_level,
 335                                              int *system_name)
 336 {
 337         switch (mono_level) {
 338         case SocketOptionLevel_Socket:
 339                 *system_level = SOL_SOCKET;
 340
 341                 switch(mono_name) {
 342                 case SocketOptionName_DontLinger:
 343                         /* This is SO_LINGER, because the setsockopt
 344                          * internal call maps DontLinger to SO_LINGER
 345                          * with l_onoff=0
 346                          */
 347                         *system_name = SO_LINGER;
 348                         break;
 349                 case SocketOptionName_Debug:
 350                         *system_name = SO_DEBUG;
 351                         break;
 352 #ifdef SO_ACCEPTCONN
 353                 case SocketOptionName_AcceptConnection:
 354                         *system_name = SO_ACCEPTCONN;
 355                         break;
 356 #endif
 357                 case SocketOptionName_ReuseAddress:
 358                         *system_name = SO_REUSEADDR;
 359                         break;
 360                 case SocketOptionName_KeepAlive:
 361                         *system_name = SO_KEEPALIVE;
 362                         break;
 363                 case SocketOptionName_DontRoute:
 364                         *system_name = SO_DONTROUTE;
 365                         break;
 366                 case SocketOptionName_Broadcast:
 367                         *system_name = SO_BROADCAST;
 368                         break;
 369                 case SocketOptionName_Linger:
 370                         *system_name = SO_LINGER;
 371                         break;
 372                 case SocketOptionName_OutOfBandInline:
 373                         *system_name = SO_OOBINLINE;
 374                         break;
 375                 case SocketOptionName_SendBuffer:
 376                         *system_name = SO_SNDBUF;
 377                         break;
 378                 case SocketOptionName_ReceiveBuffer:
 379                         *system_name = SO_RCVBUF;
 380                         break;
 381                 case SocketOptionName_SendLowWater:
 382                         *system_name = SO_SNDLOWAT;
 383                         break;
 384                 case SocketOptionName_ReceiveLowWater:
 385                         *system_name = SO_RCVLOWAT;
 386                         break;
 387                 case SocketOptionName_SendTimeout:
 388                         *system_name = SO_SNDTIMEO;
 389                         break;
 390                 case SocketOptionName_ReceiveTimeout:
 391                         *system_name = SO_RCVTIMEO;
 392                         break;
 393                 case SocketOptionName_Error:
 394                         *system_name = SO_ERROR;
 395                         break;
 396                 case SocketOptionName_Type:
 397                         *system_name = SO_TYPE;
 398                         break;
 399 #ifdef SO_PEERCRED
 400                 case SocketOptionName_PeerCred:
 401                         *system_name = SO_PEERCRED;
 402                         break;
 403 #endif
 404                 case SocketOptionName_ExclusiveAddressUse:
 405                 case SocketOptionName_UseLoopback:
 406                 case SocketOptionName_MaxConnections:
 407                         /* Can't figure out how to map these, so fall
 408                          * through
 409                          */
 410                 default:
 411                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at Socket level", mono_name);
 412                         return(-1);
 413                 }
 414                 break;
 415
 416         case SocketOptionLevel_IP:
 417 #ifdef HAVE_SOL_IP
 418                 *system_level = SOL_IP;
 419 #else
 420                 if (1) {
 421                         static int cached = 0;
 422                         static int proto;
 423
 424                         if (!cached) {
 425                                 struct protoent *pent;
 426
 427                                 pent = getprotobyname ("IP");
 428                                 proto = pent ? pent->p_proto : 0 /* 0 a good default value?? */;
 429                                 cached = 1;
 430                         }
 431
 432                         *system_level = proto;
 433                 }
 434 #endif /* HAVE_SOL_IP */
 435
 436                 switch(mono_name) {
 437                 case SocketOptionName_IPOptions:
 438                         *system_name = IP_OPTIONS;
 439                         break;
 440 #ifdef IP_HDRINCL
 441                 case SocketOptionName_HeaderIncluded:
 442                         *system_name = IP_HDRINCL;
 443                         break;
 444 #endif
 445 #ifdef IP_TOS
 446                 case SocketOptionName_TypeOfService:
 447                         *system_name = IP_TOS;
 448                         break;
 449 #endif
 450 #ifdef IP_TTL
 451                 case SocketOptionName_IpTimeToLive:
 452                         *system_name = IP_TTL;
 453                         break;
 454 #endif
 455                 case SocketOptionName_MulticastInterface:
 456                         *system_name = IP_MULTICAST_IF;
 457                         break;
 458                 case SocketOptionName_MulticastTimeToLive:
 459                         *system_name = IP_MULTICAST_TTL;
 460                         break;
 461                 case SocketOptionName_MulticastLoopback:
 462                         *system_name = IP_MULTICAST_LOOP;
 463                         break;
 464                 case SocketOptionName_AddMembership:
 465                         *system_name = IP_ADD_MEMBERSHIP;
 466                         break;
 467                 case SocketOptionName_DropMembership:
 468                         *system_name = IP_DROP_MEMBERSHIP;
 469                         break;
 470 #ifdef HAVE_IP_PKTINFO
 471                 case SocketOptionName_PacketInformation:
 472                         *system_name = IP_PKTINFO;
 473                         break;
 474 #endif /* HAVE_IP_PKTINFO */
 475
 476                 case SocketOptionName_DontFragment:
 477 #ifdef HAVE_IP_DONTFRAGMENT
 478                         *system_name = IP_DONTFRAGMENT;
 479                         break;
 480 #elif defined HAVE_IP_MTU_DISCOVER
 481                         /* Not quite the same */
 482                         *system_name = IP_MTU_DISCOVER;
 483                         break;
 484 #else
 485                         /* If the flag is not available on this system, we can ignore this error */
 486                         return (-2);
 487 #endif /* HAVE_IP_DONTFRAGMENT */
 488                 case SocketOptionName_AddSourceMembership:
 489                 case SocketOptionName_DropSourceMembership:
 490                 case SocketOptionName_BlockSource:
 491                 case SocketOptionName_UnblockSource:
 492                         /* Can't figure out how to map these, so fall
 493                          * through
 494                          */
 495                 default:
 496                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IP level", mono_name);
 497                         return(-1);
 498                 }
 499                 break;
 500
 501 #ifdef AF_INET6
 502         case SocketOptionLevel_IPv6:
 503 #ifdef HAVE_SOL_IPV6
 504                 *system_level = SOL_IPV6;
 505 #else
 506                 if (1) {
 507                         static int cached = 0;
 508                         static int proto;
 509
 510                         if (!cached) {
 511                                 struct protoent *pent;
 512
 513                                 pent = getprotobyname ("IPV6");
 514                                 proto = pent ? pent->p_proto : 41 /* 41 a good default value?? */;
 515                                 cached = 1;
 516                         }
 517
 518                         *system_level = proto;
 519                 }
 520 #endif /* HAVE_SOL_IPV6 */
 521
 522                 switch(mono_name) {
 523                 case SocketOptionName_IpTimeToLive:
 524                         *system_name = IPV6_UNICAST_HOPS;
 525                         break;
 526                 case SocketOptionName_MulticastInterface:
 527                         *system_name = IPV6_MULTICAST_IF;
 528                         break;
 529                 case SocketOptionName_MulticastTimeToLive:
 530                         *system_name = IPV6_MULTICAST_HOPS;
 531                         break;
 532                 case SocketOptionName_MulticastLoopback:
 533                         *system_name = IPV6_MULTICAST_LOOP;
 534                         break;
 535                 case SocketOptionName_AddMembership:
 536                         *system_name = IPV6_JOIN_GROUP;
 537                         break;
 538                 case SocketOptionName_DropMembership:
 539                         *system_name = IPV6_LEAVE_GROUP;
 540                         break;
 541                 case SocketOptionName_PacketInformation:
 542 #ifdef HAVE_IPV6_PKTINFO
 543                         *system_name = IPV6_PKTINFO;
 544 #endif
 545                         break;
 546                 case SocketOptionName_HeaderIncluded:
 547                 case SocketOptionName_IPOptions:
 548                 case SocketOptionName_TypeOfService:
 549                 case SocketOptionName_DontFragment:
 550                 case SocketOptionName_AddSourceMembership:
 551                 case SocketOptionName_DropSourceMembership:
 552                 case SocketOptionName_BlockSource:
 553                 case SocketOptionName_UnblockSource:
 554                         /* Can't figure out how to map these, so fall
 555                          * through
 556                          */
 557                 default:
 558                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at IPv6 level", mono_name);
 559                         return(-1);
 560                 }
 561
 562                 break;  /* SocketOptionLevel_IPv6 */
 563 #endif
 564
 565         case SocketOptionLevel_Tcp:
 566 #ifdef HAVE_SOL_TCP
 567                 *system_level = SOL_TCP;
 568 #else
 569                 if (1) {
 570                         static int cached = 0;
 571                         static int proto;
 572
 573                         if (!cached) {
 574                                 struct protoent *pent;
 575
 576                                 pent = getprotobyname ("TCP");
 577                                 proto = pent ? pent->p_proto : 6 /* is 6 a good default value?? */;
 578                                 cached = 1;
 579                         }
 580
 581                         *system_level = proto;
 582                 }
 583 #endif /* HAVE_SOL_TCP */
 584
 585                 switch(mono_name) {
 586                 case SocketOptionName_NoDelay:
 587                         *system_name = TCP_NODELAY;
 588                         break;
 589 #if 0
 590                         /* The documentation is talking complete
 591                          * bollocks here: rfc-1222 is titled
 592                          * 'Advancing the NSFNET Routing Architecture'
 593                          * and doesn't mention either of the words
 594                          * "expedite" or "urgent".
 595                          */
 596                 case SocketOptionName_BsdUrgent:
 597                 case SocketOptionName_Expedited:
 598 #endif
 599                 default:
 600                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at TCP level", mono_name);
 601                         return(-1);
 602                 }
 603                 break;
 604
 605         case SocketOptionLevel_Udp:
 606                 g_warning("System.Net.Sockets.SocketOptionLevel has unsupported value 0x%x", mono_level);
 607
 608                 switch(mono_name) {
 609                 case SocketOptionName_NoChecksum:
 610                 case SocketOptionName_ChecksumCoverage:
 611                 default:
 612                         g_warning("System.Net.Sockets.SocketOptionName 0x%x is not supported at UDP level", mono_name);
 613                         return(-1);
 614                 }
 615                 return(-1);
 616                 break;
 617
 618         default:
 619                 g_warning("System.Net.Sockets.SocketOptionLevel has unknown value 0x%x", mono_level);
 620                 return(-1);
 621         }
 622
 623         return(0);
 624 }
 625
 626 static MonoImage *get_socket_assembly (void)
 627 {
 628         static const char *version = NULL;
 629         static gboolean moonlight;
 630         static MonoImage *socket_assembly = NULL;
 631
 632         if (version == NULL) {
 633                 version = mono_get_runtime_info ()->framework_version;
 634                 moonlight = !strcmp (version, "2.1");
 635         }
 636
 637         if (socket_assembly == NULL) {
 638                 if (moonlight) {
 639                         socket_assembly = mono_image_loaded ("System.Net");
 640                         if (!socket_assembly) {
 641                                 MonoAssembly *sa = mono_assembly_open ("System.Net.dll", NULL);
 642
 643                                 if (!sa) {
 644                                         g_assert_not_reached ();
 645                                 } else {
 646                                         socket_assembly = mono_assembly_get_image (sa);
 647                                 }
 648                         }
 649                 } else {
 650                         socket_assembly = mono_image_loaded ("System");
 651                         if (!socket_assembly) {
 652                                 MonoAssembly *sa = mono_assembly_open ("System.dll", NULL);
 653
 654                                 if (!sa) {
 655                                         g_assert_not_reached ();
 656                                 } else {
 657                                         socket_assembly = mono_assembly_get_image (sa);
 658                                 }
 659                         }
 660                 }
 661         }
 662
 663         return(socket_assembly);
 664 }
 665
 666 #ifdef AF_INET6
 667 static gint32 get_family_hint(void)
 668 {
 669         MonoDomain *domain = mono_domain_get ();
 670
 671         if (!domain->inet_family_hint) {
 672                 MonoClass *socket_class;
 673                 MonoClassField *ipv6_field, *ipv4_field;
 674                 gint32 ipv6_enabled = -1, ipv4_enabled = -1;
 675                 MonoVTable *vtable;
 676
 677                 socket_class = mono_class_from_name (get_socket_assembly (), "System.Net.Sockets", "Socket");
 678                 ipv4_field = mono_class_get_field_from_name (socket_class, "ipv4Supported");
 679                 ipv6_field = mono_class_get_field_from_name (socket_class, "ipv6Supported");
 680                 vtable = mono_class_vtable (mono_domain_get (), socket_class);
 681                 mono_runtime_class_init (vtable);
 682
 683                 mono_field_static_get_value (vtable, ipv4_field, &ipv4_enabled);
 684                 mono_field_static_get_value (vtable, ipv6_field, &ipv6_enabled);
 685
 686                 mono_domain_lock (domain);
 687                 if (ipv4_enabled == 1 && ipv6_enabled == 1) {
 688                         domain->inet_family_hint = 1;
 689                 } else if (ipv4_enabled == 1) {
 690                         domain->inet_family_hint = 2;
 691                 } else {
 692                         domain->inet_family_hint = 3;
 693                 }
 694                 mono_domain_unlock (domain);
 695         }
 696         switch (domain->inet_family_hint) {
 697         case 1: return PF_UNSPEC;
 698         case 2: return PF_INET;
 699         case 3: return PF_INET6;
 700         default:
 701                 return PF_UNSPEC;
 702         }
 703 }
 704 #endif
 705
 706 gpointer ves_icall_System_Net_Sockets_Socket_Socket_internal(MonoObject *this, gint32 family, gint32 type, gint32 proto, gint32 *error)
 707 {
 708         SOCKET sock;
 709         gint32 sock_family;
 710         gint32 sock_proto;
 711         gint32 sock_type;
 712
 713         MONO_ARCH_SAVE_REGS;
 714
 715         *error = 0;
 716
 717         sock_family=convert_family(family);
 718         if(sock_family==-1) {
 719                 *error = WSAEAFNOSUPPORT;
 720                 return(NULL);
 721         }
 722
 723         sock_proto=convert_proto(proto);
 724         if(sock_proto==-1) {
 725                 *error = WSAEPROTONOSUPPORT;
 726                 return(NULL);
 727         }
 728
 729         sock_type=convert_type(type);
 730         if(sock_type==-1) {
 731                 *error = WSAESOCKTNOSUPPORT;
 732                 return(NULL);
 733         }
 734
 735         sock = _wapi_socket (sock_family, sock_type, sock_proto,
 736                              NULL, 0, WSA_FLAG_OVERLAPPED);
 737
 738         if(sock==INVALID_SOCKET) {
 739                 *error = WSAGetLastError ();
 740                 return(NULL);
 741         }
 742
 743         if (sock_family == AF_INET && sock_type == SOCK_DGRAM) {
 744                 return (GUINT_TO_POINTER (sock));
 745         }
 746
 747 #ifdef AF_INET6
 748         if (sock_family == AF_INET6 && sock_type == SOCK_DGRAM) {
 749                 return (GUINT_TO_POINTER (sock));
 750         }
 751 #endif
 752
 753         return(GUINT_TO_POINTER (sock));
 754 }
 755
 756 /* FIXME: the SOCKET parameter (here and in other functions in this
 757  * file) is really an IntPtr which needs to be converted to a guint32.
 758  */
 759 void ves_icall_System_Net_Sockets_Socket_Close_internal(SOCKET sock,
 760                                                         gint32 *error)
 761 {
 762         MONO_ARCH_SAVE_REGS;
 763
 764 #ifdef DEBUG
 765         g_message (G_GNUC_PRETTY_FUNCTION ": closing 0x%x", sock);
 766 #endif
 767
 768         *error = 0;
 769
 770         /* Clear any pending work item from this socket if the underlying
 771          * polling system does not notify when the socket is closed */
 772         mono_thread_pool_remove_socket (GPOINTER_TO_INT (sock));
 773         closesocket(sock);
 774 }
 775
 776 gint32 ves_icall_System_Net_Sockets_SocketException_WSAGetLastError_internal(void)
 777 {
 778         MONO_ARCH_SAVE_REGS;
 779
 780 #ifdef DEBUG
 781         g_message(G_GNUC_PRETTY_FUNCTION ": returning %d", WSAGetLastError());
 782 #endif
 783
 784         return(WSAGetLastError());
 785 }
 786
 787 gint32 ves_icall_System_Net_Sockets_Socket_Available_internal(SOCKET sock,
 788                                                               gint32 *error)
 789 {
 790         int ret;
 791         int amount;
 792
 793         MONO_ARCH_SAVE_REGS;
 794
 795         *error = 0;
 796
 797 #if defined(PLATFORM_MACOSX)
 798         {
 799                 socklen_t optlen = sizeof (amount);
 800                 ret=getsockopt (sock, SOL_SOCKET, SO_NREAD, &amount, &optlen);
 801         }
 802 #else
 803         ret=ioctlsocket(sock, FIONREAD, &amount);
 804 #endif
 805         if(ret==SOCKET_ERROR) {
 806                 *error = WSAGetLastError ();
 807                 return(0);
 808         }
 809
 810         return(amount);
 811 }
 812
 813 void ves_icall_System_Net_Sockets_Socket_Blocking_internal(SOCKET sock,
 814                                                            gboolean block,
 815                                                            gint32 *error)
 816 {
 817         int ret;
 818
 819         MONO_ARCH_SAVE_REGS;
 820
 821         *error = 0;
 822
 823         /*
 824          * block == TRUE/FALSE means we will block/not block.
 825          * But the ioctlsocket call takes TRUE/FALSE for non-block/block
 826          */
 827         block = !block;
 828
 829         ret = ioctlsocket (sock, FIONBIO, (gulong *) &block);
 830         if(ret==SOCKET_ERROR) {
 831                 *error = WSAGetLastError ();
 832         }
 833 }
 834
 835 gpointer ves_icall_System_Net_Sockets_Socket_Accept_internal(SOCKET sock,
 836                                                              gint32 *error,
 837                                                              gboolean blocking)
 838 {
 839         SOCKET newsock;
 840
 841         MONO_ARCH_SAVE_REGS;
 842
 843         *error = 0;
 844
 845 #ifdef PLATFORM_WIN32
 846         /* Several applications are getting stuck during shutdown on Windows
 847          * when an accept call is on a background thread.
 848          *
 849          */
 850         if (blocking) {
 851                 MonoThread* curthread = mono_thread_current ();
 852
 853                 if (curthread) {
 854                         for (;;) {
 855                                 int selectret;
 856                                 int optlen = sizeof (gint);
 857                                 TIMEVAL timeout;
 858                                 fd_set readfds;
 859                                 FD_ZERO (&readfds);
 860                                 FD_SET(sock, &readfds);
 861                                 timeout.tv_sec = 0;
 862                                 timeout.tv_usec = 1000;
 863                                 selectret = select (0, &readfds, NULL, NULL, &timeout);
 864                                 if (selectret > 0)
 865                                         break;
 866                                 if (curthread->state & ThreadState_StopRequested)
 867                                         return NULL;
 868                                 /* A negative return from select means that an error has occurred.
 869                                  * Let _wapi_accept handle that.*/
 870                                 if (selectret != 0)
 871                                         break;
 872                                 /* The socket's state may have changed.  If it is no longer listening, stop.*/
 873                                 if (!getsockopt (sock, SOL_SOCKET, SO_ACCEPTCONN, (char*)&selectret, &optlen)) {
 874                                         if (!selectret)
 875                                                 break;
 876                                 }
 877                         }
 878                 }
 879         }
 880 #endif
 881
 882         newsock = _wapi_accept (sock, NULL, 0);
 883         if(newsock==INVALID_SOCKET) {
 884                 *error = WSAGetLastError ();
 885                 return(NULL);
 886         }
 887
 888         return(GUINT_TO_POINTER (newsock));
 889 }
 890
 891 void ves_icall_System_Net_Sockets_Socket_Listen_internal(SOCKET sock,
 892                                                          guint32 backlog,
 893                                                          gint32 *error)
 894 {
 895         int ret;
 896
 897         MONO_ARCH_SAVE_REGS;
 898
 899         *error = 0;
 900
 901         ret = _wapi_listen (sock, backlog);
 902         if(ret==SOCKET_ERROR) {
 903                 *error = WSAGetLastError ();
 904         }
 905 }
 906
 907 static MonoObject *create_object_from_sockaddr(struct sockaddr *saddr,
 908                                                int sa_size, gint32 *error)
 909 {
 910         MonoDomain *domain = mono_domain_get ();
 911         MonoObject *sockaddr_obj;
 912         MonoClass *sockaddr_class;
 913         MonoClassField *field;
 914         MonoArray *data;
 915         MonoAddressFamily family;
 916
 917         /* Build a System.Net.SocketAddress object instance */
 918         sockaddr_class=mono_class_from_name(get_socket_assembly (), "System.Net", "SocketAddress");
 919         sockaddr_obj=mono_object_new(domain, sockaddr_class);
 920
 921         /* Locate the SocketAddress data buffer in the object */
 922         field=mono_class_get_field_from_name(sockaddr_class, "data");
 923
 924         /* Make sure there is space for the family and size bytes */
 925 #ifdef HAVE_SYS_UN_H
 926         if (saddr->sa_family == AF_UNIX) {
 927                 /* sa_len includes the entire sockaddr size, so we don't need the
 928                  * N bytes (sizeof (unsigned short)) of the family. */
 929                 data=mono_array_new(domain, mono_get_byte_class (), sa_size);
 930         } else
 931 #endif
 932         {
 933                 /* May be the +2 here is too conservative, as sa_len returns
 934                  * the length of the entire sockaddr_in/in6, including
 935                  * sizeof (unsigned short) of the family */
 936                 data=mono_array_new(domain, mono_get_byte_class (), sa_size+2);
 937         }
 938
 939         /* The data buffer is laid out as follows:
 940          * bytes 0 and 1 are the address family
 941          * bytes 2 and 3 are the port info
 942          * the rest is the address info
 943          */
 944
 945         family=convert_to_mono_family(saddr->sa_family);
 946         if(family==AddressFamily_Unknown) {
 947                 *error = WSAEAFNOSUPPORT;
 948                 return(NULL);
 949         }
 950
 951         mono_array_set(data, guint8, 0, family & 0x0FF);
 952         mono_array_set(data, guint8, 1, (family >> 8) & 0x0FF);
 953
 954         if(saddr->sa_family==AF_INET) {
 955                 struct sockaddr_in *sa_in=(struct sockaddr_in *)saddr;
 956                 guint16 port=ntohs(sa_in->sin_port);
 957                 guint32 address=ntohl(sa_in->sin_addr.s_addr);
 958
 959                 if(sa_size<8) {
 960                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 961                 }
 962
 963                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 964                 mono_array_set(data, guint8, 3, (port) & 0xff);
 965                 mono_array_set(data, guint8, 4, (address>>24) & 0xff);
 966                 mono_array_set(data, guint8, 5, (address>>16) & 0xff);
 967                 mono_array_set(data, guint8, 6, (address>>8) & 0xff);
 968                 mono_array_set(data, guint8, 7, (address) & 0xff);
 969
 970                 mono_field_set_value (sockaddr_obj, field, data);
 971
 972                 return(sockaddr_obj);
 973 #ifdef AF_INET6
 974         } else if (saddr->sa_family == AF_INET6) {
 975                 struct sockaddr_in6 *sa_in=(struct sockaddr_in6 *)saddr;
 976                 int i;
 977
 978                 guint16 port=ntohs(sa_in->sin6_port);
 979
 980                 if(sa_size<28) {
 981                         mono_raise_exception((MonoException *)mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
 982                 }
 983
 984                 mono_array_set(data, guint8, 2, (port>>8) & 0xff);
 985                 mono_array_set(data, guint8, 3, (port) & 0xff);
 986
 987                 for(i=0; i<16; i++) {
 988                         mono_array_set(data, guint8, 8+i,
 989                                        sa_in->sin6_addr.s6_addr[i]);
 990                 }
 991
 992                 mono_array_set(data, guint8, 24, sa_in->sin6_scope_id & 0xff);
 993                 mono_array_set(data, guint8, 25,
 994                                (sa_in->sin6_scope_id >> 8) & 0xff);
 995                 mono_array_set(data, guint8, 26,
 996                                (sa_in->sin6_scope_id >> 16) & 0xff);
 997                 mono_array_set(data, guint8, 27,
 998                                (sa_in->sin6_scope_id >> 24) & 0xff);
 999
1000                 mono_field_set_value (sockaddr_obj, field, data);
1001
1002                 return(sockaddr_obj);
1003 #endif
1004 #ifdef HAVE_SYS_UN_H
1005         } else if (saddr->sa_family == AF_UNIX) {
1006                 int i;
1007
1008                 for (i = 0; i < sa_size; i++) {
1009                         mono_array_set (data, guint8, i+2, saddr->sa_data[i]);
1010                 }
1011
1012                 mono_field_set_value (sockaddr_obj, field, data);
1013
1014                 return sockaddr_obj;
1015 #endif
1016         } else {
1017                 *error = WSAEAFNOSUPPORT;
1018                 return(NULL);
1019         }
1020 }
1021
1022 extern MonoObject *ves_icall_System_Net_Sockets_Socket_LocalEndPoint_internal(SOCKET sock, gint32 *error)
1023 {
1024         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1025         socklen_t salen;
1026         int ret;
1027
1028         MONO_ARCH_SAVE_REGS;
1029
1030         *error = 0;
1031
1032         salen=sizeof(sa);
1033         ret = _wapi_getsockname (sock, (struct sockaddr *)sa, &salen);
1034
1035         if(ret==SOCKET_ERROR) {
1036                 *error = WSAGetLastError ();
1037                 return(NULL);
1038         }
1039
1040 #ifdef DEBUG
1041         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));
1042 #endif
1043
1044         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1045                                            error));
1046 }
1047
1048 extern MonoObject *ves_icall_System_Net_Sockets_Socket_RemoteEndPoint_internal(SOCKET sock, gint32 *error)
1049 {
1050         gchar sa[32];   /* sockaddr in not big enough for sockaddr_in6 */
1051         socklen_t salen;
1052         int ret;
1053
1054         MONO_ARCH_SAVE_REGS;
1055
1056         *error = 0;
1057
1058         salen=sizeof(sa);
1059         ret = _wapi_getpeername (sock, (struct sockaddr *)sa, &salen);
1060
1061         if(ret==SOCKET_ERROR) {
1062                 *error = WSAGetLastError ();
1063                 return(NULL);
1064         }
1065
1066 #ifdef DEBUG
1067         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));
1068 #endif
1069
1070         return(create_object_from_sockaddr((struct sockaddr *)sa, salen,
1071                                            error));
1072 }
1073
1074 static struct sockaddr *create_sockaddr_from_object(MonoObject *saddr_obj,
1075                                                     socklen_t *sa_size,
1076                                                     gint32 *error)
1077 {
1078         MonoClassField *field;
1079         MonoArray *data;
1080         gint32 family;
1081         int len;
1082
1083         /* Dig the SocketAddress data buffer out of the object */
1084         field=mono_class_get_field_from_name(saddr_obj->vtable->klass, "data");
1085         data=*(MonoArray **)(((char *)saddr_obj) + field->offset);
1086
1087         /* The data buffer is laid out as follows:
1088          * byte 0 is the address family low byte
1089          * byte 1 is the address family high byte
1090          * INET:
1091          *      bytes 2 and 3 are the port info
1092          *      the rest is the address info
1093          * UNIX:
1094          *      the rest is the file name
1095          */
1096         len = mono_array_length (data);
1097         if (len < 2) {
1098                 mono_raise_exception (mono_exception_from_name(mono_get_corlib (), "System", "SystemException"));
1099         }
1100
1101         family = convert_family (mono_array_get (data, guint8, 0) + (mono_array_get (data, guint8, 1) << 8));
1102         if (family == AF_INET) {
1103                 struct sockaddr_in *sa;
1104                 guint16 port;
1105                 guint32 address;
1106
1107                 if (len < 8) {
1108                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1109                 }
1110
1111                 sa = g_new0 (struct sockaddr_in, 1);
1112                 port = (mono_array_get (data, guint8, 2) << 8) +
1113                         mono_array_get (data, guint8, 3);
1114                 address = (mono_array_get (data, guint8, 4) << 24) +
1115                         (mono_array_get (data, guint8, 5) << 16 ) +
1116                         (mono_array_get (data, guint8, 6) << 8) +
1117                         mono_array_get (data, guint8, 7);
1118
1119                 sa->sin_family = family;
1120                 sa->sin_addr.s_addr = htonl (address);
1121                 sa->sin_port = htons (port);
1122
1123                 *sa_size = sizeof(struct sockaddr_in);
1124                 return((struct sockaddr *)sa);
1125
1126 #ifdef AF_INET6
1127         } else if (family == AF_INET6) {
1128                 struct sockaddr_in6 *sa;
1129                 int i;
1130                 guint16 port;
1131                 guint32 scopeid;
1132
1133                 if (len < 28) {
1134                         mono_raise_exception (mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1135                 }
1136
1137                 sa = g_new0 (struct sockaddr_in6, 1);
1138                 port = mono_array_get (data, guint8, 3) +
1139                         (mono_array_get (data, guint8, 2) << 8);
1140                 scopeid = mono_array_get (data, guint8, 24) +
1141                         (mono_array_get (data, guint8, 25) << 8) +
1142                         (mono_array_get (data, guint8, 26) << 16) +
1143                         (mono_array_get (data, guint8, 27) << 24);
1144
1145                 sa->sin6_family = family;
1146                 sa->sin6_port = htons (port);
1147                 sa->sin6_scope_id = scopeid;
1148
1149                 for(i=0; i<16; i++) {
1150                         sa->sin6_addr.s6_addr[i] = mono_array_get (data, guint8, 8+i);
1151                 }
1152
1153                 *sa_size = sizeof(struct sockaddr_in6);
1154                 return((struct sockaddr *)sa);
1155 #endif
1156 #ifdef HAVE_SYS_UN_H
1157         } else if (family == AF_UNIX) {
1158                 struct sockaddr_un *sock_un;
1159                 int i;
1160
1161                 /* Need a byte for the '\0' terminator/prefix, and the first
1162                  * two bytes hold the SocketAddress family
1163                  */
1164                 if (len - 2 >= MONO_SIZEOF_SUNPATH) {
1165                         mono_raise_exception (mono_get_exception_index_out_of_range ());
1166                 }
1167
1168                 sock_un = g_new0 (struct sockaddr_un, 1);
1169
1170                 sock_un->sun_family = family;
1171                 for (i = 0; i < len - 2; i++) {
1172                         sock_un->sun_path [i] = mono_array_get (data, guint8,
1173                                                                 i + 2);
1174                 }
1175
1176                 *sa_size = len;
1177
1178                 return (struct sockaddr *)sock_un;
1179 #endif
1180         } else {
1181                 *error = WSAEAFNOSUPPORT;
1182                 return(0);
1183         }
1184 }
1185
1186 extern void ves_icall_System_Net_Sockets_Socket_Bind_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1187 {
1188         struct sockaddr *sa;
1189         socklen_t sa_size;
1190         int ret;
1191
1192         MONO_ARCH_SAVE_REGS;
1193
1194         *error = 0;
1195
1196         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1197         if (*error != 0) {
1198                 return;
1199         }
1200
1201 #ifdef DEBUG
1202         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));
1203 #endif
1204
1205         ret = _wapi_bind (sock, sa, sa_size);
1206         if(ret==SOCKET_ERROR) {
1207                 *error = WSAGetLastError ();
1208         }
1209
1210         g_free(sa);
1211 }
1212
1213 enum {
1214         SelectModeRead,
1215         SelectModeWrite,
1216         SelectModeError
1217 };
1218
1219 MonoBoolean
1220 ves_icall_System_Net_Sockets_Socket_Poll_internal (SOCKET sock, gint mode,
1221                                                    gint timeout, gint32 *error)
1222 {
1223         MonoThread *thread = NULL;
1224         mono_pollfd *pfds;
1225         int ret;
1226         time_t start;
1227
1228
1229         MONO_ARCH_SAVE_REGS;
1230
1231         pfds = g_new0 (mono_pollfd, 1);
1232         pfds[0].fd = GPOINTER_TO_INT (sock);
1233         pfds[0].events = (mode == SelectModeRead) ? MONO_POLLIN :
1234                 (mode == SelectModeWrite) ? MONO_POLLOUT :
1235                 (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL);
1236
1237         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1238         start = time (NULL);
1239         do {
1240                 *error = 0;
1241
1242                 ret = mono_poll (pfds, 1, timeout);
1243                 if (timeout > 0 && ret < 0) {
1244                         int err = errno;
1245                         int sec = time (NULL) - start;
1246
1247                         timeout -= sec * 1000;
1248                         if (timeout < 0) {
1249                                 timeout = 0;
1250                         }
1251
1252                         errno = err;
1253                 }
1254
1255                 if (ret == -1 && errno == EINTR) {
1256                         int leave = 0;
1257
1258                         if (thread == NULL) {
1259                                 thread = mono_thread_current ();
1260                         }
1261
1262                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1263
1264                         if (leave != 0) {
1265                                 g_free (pfds);
1266                                 return(FALSE);
1267                         } else {
1268                                 /* Suspend requested? */
1269                                 mono_thread_interruption_checkpoint ();
1270                         }
1271                         errno = EINTR;
1272                 }
1273         } while (ret == -1 && errno == EINTR);
1274
1275         if (ret == -1) {
1276 #ifdef PLATFORM_WIN32
1277                 *error = WSAGetLastError ();
1278 #else
1279                 *error = errno_to_WSA (errno, __func__);
1280 #endif
1281                 g_free (pfds);
1282                 return(FALSE);
1283         }
1284
1285         g_free (pfds);
1286
1287         if (ret == 0) {
1288                 return(FALSE);
1289         } else {
1290                 return (TRUE);
1291         }
1292 }
1293
1294 extern void ves_icall_System_Net_Sockets_Socket_Connect_internal(SOCKET sock, MonoObject *sockaddr, gint32 *error)
1295 {
1296         struct sockaddr *sa;
1297         socklen_t sa_size;
1298         int ret;
1299
1300         MONO_ARCH_SAVE_REGS;
1301
1302         *error = 0;
1303
1304         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1305         if (*error != 0) {
1306                 return;
1307         }
1308
1309 #ifdef DEBUG
1310         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));
1311 #endif
1312
1313         ret = _wapi_connect (sock, sa, sa_size);
1314         if(ret==SOCKET_ERROR) {
1315                 *error = WSAGetLastError ();
1316         }
1317
1318         g_free(sa);
1319 }
1320
1321 /* These #defines from mswsock.h from wine.  Defining them here allows
1322  * us to build this file on a mingw box that doesn't know the magic
1323  * numbers, but still run on a newer windows box that does.
1324  */
1325 #ifndef WSAID_DISCONNECTEX
1326 #define WSAID_DISCONNECTEX {0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
1327 typedef BOOL (WINAPI *LPFN_DISCONNECTEX)(SOCKET, LPOVERLAPPED, DWORD, DWORD);
1328 #endif
1329
1330 #ifndef WSAID_TRANSMITFILE
1331 #define WSAID_TRANSMITFILE {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
1332 typedef BOOL (WINAPI *LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
1333 #endif
1334
1335 extern void ves_icall_System_Net_Sockets_Socket_Disconnect_internal(SOCKET sock, MonoBoolean reuse, gint32 *error)
1336 {
1337         int ret;
1338         glong output_bytes = 0;
1339         GUID disco_guid = WSAID_DISCONNECTEX;
1340         GUID trans_guid = WSAID_TRANSMITFILE;
1341         LPFN_DISCONNECTEX _wapi_disconnectex = NULL;
1342         LPFN_TRANSMITFILE _wapi_transmitfile = NULL;
1343         gboolean bret;
1344
1345         MONO_ARCH_SAVE_REGS;
1346
1347         *error = 0;
1348
1349 #ifdef DEBUG
1350         g_message("%s: disconnecting from socket %p (reuse %d)", __func__,
1351                   sock, reuse);
1352 #endif
1353
1354         /* I _think_ the extension function pointers need to be looked
1355          * up for each socket.  FIXME: check the best way to store
1356          * pointers to functions in managed objects that still works
1357          * on 64bit platforms.
1358          */
1359         ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1360                         (void *)&disco_guid, sizeof(GUID),
1361                         (void *)&_wapi_disconnectex, sizeof(void *),
1362                         &output_bytes, NULL, NULL);
1363         if (ret != 0) {
1364                 /* make sure that WSAIoctl didn't put crap in the
1365                  * output pointer
1366                  */
1367                 _wapi_disconnectex = NULL;
1368
1369                 /* Look up the TransmitFile extension function pointer
1370                  * instead of calling TransmitFile() directly, because
1371                  * apparently "Several of the extension functions have
1372                  * been available since WinSock 1.1 and are exported
1373                  * from MSWsock.dll, however it's not advisable to
1374                  * link directly to this dll as this ties you to the
1375                  * Microsoft WinSock provider. A provider neutral way
1376                  * of accessing these extension functions is to load
1377                  * them dynamically via WSAIoctl using the
1378                  * SIO_GET_EXTENSION_FUNCTION_POINTER op code. This
1379                  * should, theoretically, allow you to access these
1380                  * functions from any provider that supports them..."
1381                  * (http://www.codeproject.com/internet/jbsocketserver3.asp)
1382                  */
1383                 ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
1384                                 (void *)&trans_guid, sizeof(GUID),
1385                                 (void *)&_wapi_transmitfile, sizeof(void *),
1386                                 &output_bytes, NULL, NULL);
1387                 if (ret != 0) {
1388                         _wapi_transmitfile = NULL;
1389                 }
1390         }
1391
1392         if (_wapi_disconnectex != NULL) {
1393                 bret = _wapi_disconnectex (sock, NULL, TF_REUSE_SOCKET, 0);
1394         } else if (_wapi_transmitfile != NULL) {
1395                 bret = _wapi_transmitfile (sock, NULL, 0, 0, NULL, NULL,
1396                                            TF_DISCONNECT | TF_REUSE_SOCKET);
1397         } else {
1398                 *error = ERROR_NOT_SUPPORTED;
1399                 return;
1400         }
1401
1402         if (bret == FALSE) {
1403                 *error = WSAGetLastError ();
1404         }
1405 }
1406
1407 gint32 ves_icall_System_Net_Sockets_Socket_Receive_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1408 {
1409         int ret;
1410         guchar *buf;
1411         gint32 alen;
1412         int recvflags=0;
1413
1414         MONO_ARCH_SAVE_REGS;
1415
1416         *error = 0;
1417
1418         alen = mono_array_length (buffer);
1419         if (offset > alen - count) {
1420                 return(0);
1421         }
1422
1423         buf=mono_array_addr(buffer, guchar, offset);
1424
1425         recvflags = convert_socketflags (flags);
1426         if (recvflags == -1) {
1427                 *error = WSAEOPNOTSUPP;
1428                 return (0);
1429         }
1430
1431         ret = _wapi_recv (sock, buf, count, recvflags);
1432         if(ret==SOCKET_ERROR) {
1433                 *error = WSAGetLastError ();
1434                 return(0);
1435         }
1436
1437         return(ret);
1438 }
1439
1440 gint32 ves_icall_System_Net_Sockets_Socket_Receive_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1441 {
1442         int ret, count;
1443         DWORD recv;
1444         WSABUF *wsabufs;
1445         DWORD recvflags = 0;
1446
1447         MONO_ARCH_SAVE_REGS;
1448
1449         *error = 0;
1450
1451         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1452         count = mono_array_length (buffers);
1453
1454         recvflags = convert_socketflags (flags);
1455         if (recvflags == -1) {
1456                 *error = WSAEOPNOTSUPP;
1457                 return(0);
1458         }
1459
1460         ret = WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL);
1461         if (ret == SOCKET_ERROR) {
1462                 *error = WSAGetLastError ();
1463                 return(0);
1464         }
1465
1466         return(recv);
1467 }
1468
1469 gint32 ves_icall_System_Net_Sockets_Socket_RecvFrom_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject **sockaddr, gint32 *error)
1470 {
1471         int ret;
1472         guchar *buf;
1473         gint32 alen;
1474         int recvflags=0;
1475         struct sockaddr *sa;
1476         socklen_t sa_size;
1477
1478         MONO_ARCH_SAVE_REGS;
1479
1480         *error = 0;
1481
1482         alen = mono_array_length (buffer);
1483         if (offset > alen - count) {
1484                 return(0);
1485         }
1486
1487         sa=create_sockaddr_from_object(*sockaddr, &sa_size, error);
1488         if (*error != 0) {
1489                 return(0);
1490         }
1491
1492         buf=mono_array_addr(buffer, guchar, offset);
1493
1494         recvflags = convert_socketflags (flags);
1495         if (recvflags == -1) {
1496                 *error = WSAEOPNOTSUPP;
1497                 return (0);
1498         }
1499
1500         ret = _wapi_recvfrom (sock, buf, count, recvflags, sa, &sa_size);
1501         if(ret==SOCKET_ERROR) {
1502                 g_free(sa);
1503                 *error = WSAGetLastError ();
1504                 return(0);
1505         }
1506
1507         /* If we didn't get a socket size, then we're probably a
1508          * connected connection-oriented socket and the stack hasn't
1509          * returned the remote address. All we can do is return null.
1510          */
1511         if ( sa_size != 0 )
1512                 *sockaddr=create_object_from_sockaddr(sa, sa_size, error);
1513         else
1514                 *sockaddr=NULL;
1515
1516         g_free(sa);
1517
1518         return(ret);
1519 }
1520
1521 gint32 ves_icall_System_Net_Sockets_Socket_Send_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *error)
1522 {
1523         int ret;
1524         guchar *buf;
1525         gint32 alen;
1526         int sendflags=0;
1527
1528         MONO_ARCH_SAVE_REGS;
1529
1530         *error = 0;
1531
1532         alen = mono_array_length (buffer);
1533         if (offset > alen - count) {
1534                 return(0);
1535         }
1536
1537 #ifdef DEBUG
1538         g_message(G_GNUC_PRETTY_FUNCTION ": alen: %d", alen);
1539 #endif
1540
1541         buf=mono_array_addr(buffer, guchar, offset);
1542
1543 #ifdef DEBUG
1544         g_message(G_GNUC_PRETTY_FUNCTION ": Sending %d bytes", count);
1545 #endif
1546
1547         sendflags = convert_socketflags (flags);
1548         if (sendflags == -1) {
1549                 *error = WSAEOPNOTSUPP;
1550                 return (0);
1551         }
1552
1553         ret = _wapi_send (sock, buf, count, sendflags);
1554         if(ret==SOCKET_ERROR) {
1555                 *error = WSAGetLastError ();
1556                 return(0);
1557         }
1558
1559         return(ret);
1560 }
1561
1562 gint32 ves_icall_System_Net_Sockets_Socket_Send_array_internal(SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *error)
1563 {
1564         int ret, count;
1565         DWORD sent;
1566         WSABUF *wsabufs;
1567         DWORD sendflags = 0;
1568
1569         MONO_ARCH_SAVE_REGS;
1570
1571         *error = 0;
1572
1573         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1574         count = mono_array_length (buffers);
1575
1576         sendflags = convert_socketflags (flags);
1577         if (sendflags == -1) {
1578                 *error = WSAEOPNOTSUPP;
1579                 return(0);
1580         }
1581
1582         ret = WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL);
1583         if (ret == SOCKET_ERROR) {
1584                 *error = WSAGetLastError ();
1585                 return(0);
1586         }
1587
1588         return(sent);
1589 }
1590
1591 gint32 ves_icall_System_Net_Sockets_Socket_SendTo_internal(SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject *sockaddr, gint32 *error)
1592 {
1593         int ret;
1594         guchar *buf;
1595         gint32 alen;
1596         int sendflags=0;
1597         struct sockaddr *sa;
1598         socklen_t sa_size;
1599
1600         MONO_ARCH_SAVE_REGS;
1601
1602         *error = 0;
1603
1604         alen = mono_array_length (buffer);
1605         if (offset > alen - count) {
1606                 return(0);
1607         }
1608
1609         sa=create_sockaddr_from_object(sockaddr, &sa_size, error);
1610         if(*error != 0) {
1611                 return(0);
1612         }
1613
1614 #ifdef DEBUG
1615         g_message(G_GNUC_PRETTY_FUNCTION ": alen: %d", alen);
1616 #endif
1617
1618         buf=mono_array_addr(buffer, guchar, offset);
1619
1620 #ifdef DEBUG
1621         g_message(G_GNUC_PRETTY_FUNCTION ": Sending %d bytes", count);
1622 #endif
1623
1624         sendflags = convert_socketflags (flags);
1625         if (sendflags == -1) {
1626                 *error = WSAEOPNOTSUPP;
1627                 return (0);
1628         }
1629
1630         ret = _wapi_sendto (sock, buf, count, sendflags, sa, sa_size);
1631         if(ret==SOCKET_ERROR) {
1632                 *error = WSAGetLastError ();
1633         }
1634
1635         g_free(sa);
1636
1637         return(ret);
1638 }
1639
1640 static SOCKET Socket_to_SOCKET(MonoObject *sockobj)
1641 {
1642         SOCKET sock;
1643         MonoClassField *field;
1644
1645         field=mono_class_get_field_from_name(sockobj->vtable->klass, "socket");
1646         sock=GPOINTER_TO_INT (*(gpointer *)(((char *)sockobj)+field->offset));
1647
1648         return(sock);
1649 }
1650
1651 #define POLL_ERRORS (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL)
1652 void ves_icall_System_Net_Sockets_Socket_Select_internal(MonoArray **sockets, gint32 timeout, gint32 *error)
1653 {
1654         MonoThread *thread = NULL;
1655         MonoObject *obj;
1656         mono_pollfd *pfds;
1657         int nfds, idx;
1658         int ret;
1659         int i, count;
1660         int mode;
1661         MonoClass *sock_arr_class;
1662         MonoArray *socks;
1663         time_t start;
1664         mono_array_size_t socks_size;
1665
1666         MONO_ARCH_SAVE_REGS;
1667
1668         /* *sockets -> READ, null, WRITE, null, ERROR, null */
1669         count = mono_array_length (*sockets);
1670         nfds = count - 3; /* NULL separators */
1671         pfds = g_new0 (mono_pollfd, nfds);
1672         mode = idx = 0;
1673         for (i = 0; i < count; i++) {
1674                 obj = mono_array_get (*sockets, MonoObject *, i);
1675                 if (obj == NULL) {
1676                         mode++;
1677                         continue;
1678                 }
1679
1680                 if (idx >= nfds) {
1681                         /* The socket array was bogus */
1682                         g_free (pfds);
1683                         *error = WSAEFAULT;
1684                         return;
1685                 }
1686
1687                 pfds [idx].fd = Socket_to_SOCKET (obj);
1688                 pfds [idx].events = (mode == 0) ? MONO_POLLIN : (mode == 1) ? MONO_POLLOUT : POLL_ERRORS;
1689                 idx++;
1690         }
1691
1692         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1693         start = time (NULL);
1694         do {
1695                 *error = 0;
1696                 ret = mono_poll (pfds, nfds, timeout);
1697                 if (timeout > 0 && ret < 0) {
1698                         int err = errno;
1699                         int sec = time (NULL) - start;
1700
1701                         timeout -= sec * 1000;
1702                         if (timeout < 0)
1703                                 timeout = 0;
1704                         errno = err;
1705                 }
1706
1707                 if (ret == -1 && errno == EINTR) {
1708                         int leave = 0;
1709                         if (thread == NULL)
1710                                 thread = mono_thread_current ();
1711
1712                         leave = mono_thread_test_state (thread, ThreadState_AbortRequested | ThreadState_StopRequested);
1713
1714                         if (leave != 0) {
1715                                 g_free (pfds);
1716                                 *sockets = NULL;
1717                                 return;
1718                         } else {
1719                                 /* Suspend requested? */
1720                                 mono_thread_interruption_checkpoint ();
1721                         }
1722                         errno = EINTR;
1723                 }
1724         } while (ret == -1 && errno == EINTR);
1725
1726         if (ret == -1) {
1727 #ifdef PLATFORM_WIN32
1728                 *error = WSAGetLastError ();
1729 #else
1730                 *error = errno_to_WSA (errno, __func__);
1731 #endif
1732                 g_free (pfds);
1733                 return;
1734         }
1735
1736         if (ret == 0) {
1737                 g_free (pfds);
1738                 *sockets = NULL;
1739                 return;
1740         }
1741
1742         sock_arr_class= ((MonoObject *)*sockets)->vtable->klass;
1743         socks_size = ((mono_array_size_t)ret) + 3; /* space for the NULL delimiters */
1744         socks = mono_array_new_full (mono_domain_get (), sock_arr_class, &socks_size, NULL);
1745
1746         mode = idx = 0;
1747         for (i = 0; i < count && ret > 0; i++) {
1748                 mono_pollfd *pfd;
1749
1750                 obj = mono_array_get (*sockets, MonoObject *, i);
1751                 if (obj == NULL) {
1752                         mode++;
1753                         idx++;
1754                         continue;
1755                 }
1756
1757                 pfd = &pfds [i - mode];
1758                 if (pfd->revents == 0)
1759                         continue;
1760
1761                 ret--;
1762                 if (mode == 0 && (pfd->revents & (MONO_POLLIN | POLL_ERRORS)) != 0) {
1763                         mono_array_setref (socks, idx++, obj);
1764                 } else if (mode == 1 && (pfd->revents & (MONO_POLLOUT | POLL_ERRORS)) != 0) {
1765                         mono_array_setref (socks, idx++, obj);
1766                 } else if ((pfd->revents & POLL_ERRORS) != 0) {
1767                         mono_array_setref (socks, idx++, obj);
1768                 }
1769         }
1770
1771         *sockets = socks;
1772         g_free (pfds);
1773 }
1774
1775 static MonoObject* int_to_object (MonoDomain *domain, int val)
1776 {
1777         return mono_value_box (domain, mono_get_int32_class (), &val);
1778 }
1779
1780
1781 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_obj_internal(SOCKET sock, gint32 level, gint32 name, MonoObject **obj_val, gint32 *error)
1782 {
1783         int system_level;
1784         int system_name;
1785         int ret;
1786         int val;
1787         socklen_t valsize=sizeof(val);
1788         struct linger linger;
1789         socklen_t lingersize=sizeof(linger);
1790         int time_ms = 0;
1791         socklen_t time_ms_size = sizeof (time_ms);
1792 #ifdef SO_PEERCRED
1793         struct ucred cred;
1794         socklen_t credsize = sizeof(cred);
1795 #endif
1796         MonoDomain *domain=mono_domain_get();
1797         MonoObject *obj;
1798         MonoClass *obj_class;
1799         MonoClassField *field;
1800
1801         MONO_ARCH_SAVE_REGS;
1802
1803         *error = 0;
1804
1805         ret=convert_sockopt_level_and_name(level, name, &system_level,
1806                                            &system_name);
1807         if(ret==-1) {
1808                 *error = WSAENOPROTOOPT;
1809                 return;
1810         }
1811         if (ret == -2) {
1812                 *obj_val = int_to_object (domain, 0);
1813                 return;
1814         }
1815
1816         /* No need to deal with MulticastOption names here, because
1817          * you cant getsockopt AddMembership or DropMembership (the
1818          * int getsockopt will error, causing an exception)
1819          */
1820         switch(name) {
1821         case SocketOptionName_Linger:
1822         case SocketOptionName_DontLinger:
1823                 ret = _wapi_getsockopt(sock, system_level, system_name, &linger,
1824                                &lingersize);
1825                 break;
1826
1827         case SocketOptionName_SendTimeout:
1828         case SocketOptionName_ReceiveTimeout:
1829                 ret = _wapi_getsockopt (sock, system_level, system_name, (char *) &time_ms, &time_ms_size);
1830                 break;
1831
1832 #ifdef SO_PEERCRED
1833         case SocketOptionName_PeerCred:
1834                 ret = _wapi_getsockopt (sock, system_level, system_name, &cred,
1835                                         &credsize);
1836                 break;
1837 #endif
1838
1839         default:
1840                 ret = _wapi_getsockopt (sock, system_level, system_name, &val,
1841                                &valsize);
1842         }
1843
1844         if(ret==SOCKET_ERROR) {
1845                 *error = WSAGetLastError ();
1846                 return;
1847         }
1848
1849         switch(name) {
1850         case SocketOptionName_Linger:
1851                 /* build a System.Net.Sockets.LingerOption */
1852                 obj_class=mono_class_from_name(get_socket_assembly (),
1853                                                "System.Net.Sockets",
1854                                                "LingerOption");
1855                 obj=mono_object_new(domain, obj_class);
1856
1857                 /* Locate and set the fields "bool enabled" and "int
1858                  * seconds"
1859                  */
1860                 field=mono_class_get_field_from_name(obj_class, "enabled");
1861                 *(guint8 *)(((char *)obj)+field->offset)=linger.l_onoff;
1862
1863                 field=mono_class_get_field_from_name(obj_class, "seconds");
1864                 *(guint32 *)(((char *)obj)+field->offset)=linger.l_linger;
1865
1866                 break;
1867
1868         case SocketOptionName_DontLinger:
1869                 /* construct a bool int in val - true if linger is off */
1870                 obj = int_to_object (domain, !linger.l_onoff);
1871                 break;
1872
1873         case SocketOptionName_SendTimeout:
1874         case SocketOptionName_ReceiveTimeout:
1875                 obj = int_to_object (domain, time_ms);
1876                 break;
1877
1878 #ifdef SO_PEERCRED
1879         case SocketOptionName_PeerCred:
1880         {
1881                 /* build a Mono.Posix.PeerCred+PeerCredData if
1882                  * possible
1883                  */
1884                 static MonoImage *mono_posix_image = NULL;
1885                 MonoPeerCredData *cred_data;
1886
1887                 if (mono_posix_image == NULL) {
1888                         mono_posix_image=mono_image_loaded ("Mono.Posix");
1889                         if (!mono_posix_image) {
1890                                 MonoAssembly *sa = mono_assembly_open ("Mono.Posix.dll", NULL);
1891                                 if (!sa) {
1892                                         *error = WSAENOPROTOOPT;
1893                                         return;
1894                                 } else {
1895                                         mono_posix_image = mono_assembly_get_image (sa);
1896                                 }
1897                         }
1898                 }
1899
1900                 obj_class = mono_class_from_name(mono_posix_image,
1901                                                  "Mono.Posix",
1902                                                  "PeerCredData");
1903                 obj = mono_object_new(domain, obj_class);
1904                 cred_data = (MonoPeerCredData *)obj;
1905                 cred_data->pid = cred.pid;
1906                 cred_data->uid = cred.uid;
1907                 cred_data->gid = cred.gid;
1908                 break;
1909         }
1910 #endif
1911
1912         default:
1913                 obj = int_to_object (domain, val);
1914         }
1915
1916         *obj_val=obj;
1917 }
1918
1919 void ves_icall_System_Net_Sockets_Socket_GetSocketOption_arr_internal(SOCKET sock, gint32 level, gint32 name, MonoArray **byte_val, gint32 *error)
1920 {
1921         int system_level;
1922         int system_name;
1923         int ret;
1924         guchar *buf;
1925         socklen_t valsize;
1926
1927         MONO_ARCH_SAVE_REGS;
1928
1929         *error = 0;
1930
1931         ret=convert_sockopt_level_and_name(level, name, &system_level,
1932                                            &system_name);
1933         if(ret==-1) {
1934                 *error = WSAENOPROTOOPT;
1935                 return;
1936         }
1937         if(ret==-2)
1938                 return;
1939
1940         valsize=mono_array_length(*byte_val);
1941         buf=mono_array_addr(*byte_val, guchar, 0);
1942
1943         ret = _wapi_getsockopt (sock, system_level, system_name, buf, &valsize);
1944         if(ret==SOCKET_ERROR) {
1945                 *error = WSAGetLastError ();
1946         }
1947 }
1948
1949 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
1950 static struct in_addr ipaddress_to_struct_in_addr(MonoObject *ipaddr)
1951 {
1952         struct in_addr inaddr;
1953         MonoClassField *field;
1954
1955         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Address");
1956
1957         /* No idea why .net uses a 64bit type to hold a 32bit value...
1958          *
1959          * Internal value of IPAddess is in little-endian order
1960          */
1961         inaddr.s_addr=GUINT_FROM_LE ((guint32)*(guint64 *)(((char *)ipaddr)+field->offset));
1962
1963         return(inaddr);
1964 }
1965 #endif
1966
1967 #ifdef AF_INET6
1968 static struct in6_addr ipaddress_to_struct_in6_addr(MonoObject *ipaddr)
1969 {
1970         struct in6_addr in6addr;
1971         MonoClassField *field;
1972         MonoArray *data;
1973         int i;
1974
1975         field=mono_class_get_field_from_name(ipaddr->vtable->klass, "m_Numbers");
1976         data=*(MonoArray **)(((char *)ipaddr) + field->offset);
1977
1978 /* Solaris has only the 8 bit version. */
1979 #ifndef s6_addr16
1980         for(i=0; i<8; i++) {
1981                 guint16 s = mono_array_get (data, guint16, i);
1982                 in6addr.s6_addr[2 * i] = (s >> 8) & 0xff;
1983                 in6addr.s6_addr[2 * i + 1] = s & 0xff;
1984         }
1985 #else
1986         for(i=0; i<8; i++)
1987                 in6addr.s6_addr16[i] = mono_array_get (data, guint16, i);
1988 #endif
1989         return(in6addr);
1990 }
1991 #endif /* AF_INET6 */
1992
1993 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)
1994 {
1995         int system_level;
1996         int system_name;
1997         int ret;
1998 #ifdef AF_INET6
1999         int sol_ip;
2000         int sol_ipv6;
2001
2002         *error = 0;
2003
2004 #ifdef HAVE_SOL_IPV6
2005         sol_ipv6 = SOL_IPV6;
2006 #else
2007         {
2008                 struct protoent *pent;
2009                 pent = getprotobyname ("ipv6");
2010                 sol_ipv6 = (pent != NULL) ? pent->p_proto : 41;
2011         }
2012 #endif
2013
2014 #ifdef HAVE_SOL_IP
2015         sol_ip = SOL_IP;
2016 #else
2017         {
2018                 struct protoent *pent;
2019                 pent = getprotobyname ("ip");
2020                 sol_ip = (pent != NULL) ? pent->p_proto : 0;
2021         }
2022 #endif
2023 #endif /* AF_INET6 */
2024
2025         MONO_ARCH_SAVE_REGS;
2026
2027         ret=convert_sockopt_level_and_name(level, name, &system_level,
2028                                            &system_name);
2029         if(ret==-1) {
2030                 *error = WSAENOPROTOOPT;
2031                 return;
2032         }
2033         if(ret==-2){
2034                 return;
2035         }
2036
2037         /* Only one of obj_val, byte_val or int_val has data */
2038         if(obj_val!=NULL) {
2039                 MonoClassField *field;
2040                 struct linger linger;
2041                 int valsize;
2042
2043                 switch(name) {
2044                 case SocketOptionName_DontLinger:
2045                         linger.l_onoff=0;
2046                         linger.l_linger=0;
2047                         valsize=sizeof(linger);
2048                         ret = _wapi_setsockopt (sock, system_level,
2049                                                 system_name, &linger, valsize);
2050                         break;
2051
2052                 case SocketOptionName_Linger:
2053                         /* Dig out "bool enabled" and "int seconds"
2054                          * fields
2055                          */
2056                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "enabled");
2057                         linger.l_onoff=*(guint8 *)(((char *)obj_val)+field->offset);
2058                         field=mono_class_get_field_from_name(obj_val->vtable->klass, "seconds");
2059                         linger.l_linger=*(guint32 *)(((char *)obj_val)+field->offset);
2060
2061                         valsize=sizeof(linger);
2062                         ret = _wapi_setsockopt (sock, system_level,
2063                                                 system_name, &linger, valsize);
2064                         break;
2065                 case SocketOptionName_AddMembership:
2066                 case SocketOptionName_DropMembership:
2067 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2068                 {
2069                         MonoObject *address = NULL;
2070
2071 #ifdef AF_INET6
2072                         if(system_level == sol_ipv6) {
2073                                 struct ipv6_mreq mreq6;
2074
2075                                 /*
2076                                  *      Get group address
2077                                  */
2078                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2079                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2080
2081                                 if(address) {
2082                                         mreq6.ipv6mr_multiaddr = ipaddress_to_struct_in6_addr (address);
2083                                 }
2084
2085                                 field=mono_class_get_field_from_name(obj_val->vtable->klass, "ifIndex");
2086                                 mreq6.ipv6mr_interface =*(guint64 *)(((char *)obj_val)+field->offset);
2087
2088                                 ret = _wapi_setsockopt (sock, system_level,
2089                                                         system_name, &mreq6,
2090                                                         sizeof (mreq6));
2091                         } else if(system_level == sol_ip)
2092 #endif /* AF_INET6 */
2093                         {
2094 #ifdef HAVE_STRUCT_IP_MREQN
2095                                 struct ip_mreqn mreq = {{0}};
2096 #else
2097                                 struct ip_mreq mreq = {{0}};
2098 #endif /* HAVE_STRUCT_IP_MREQN */
2099
2100                                 /* pain! MulticastOption holds two IPAddress
2101                                  * members, so I have to dig the value out of
2102                                  * those :-(
2103                                  */
2104                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2105                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2106
2107                                 /* address might not be defined and if so, set the address to ADDR_ANY.
2108                                  */
2109                                 if(address) {
2110                                         mreq.imr_multiaddr = ipaddress_to_struct_in_addr (address);
2111                                 }
2112
2113                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "local");
2114                                 address = *(gpointer *)(((char *)obj_val) + field->offset);
2115
2116 #ifdef HAVE_STRUCT_IP_MREQN
2117                                 if(address) {
2118                                         mreq.imr_address = ipaddress_to_struct_in_addr (address);
2119                                 }
2120 #else
2121                                 if(address) {
2122                                         mreq.imr_interface = ipaddress_to_struct_in_addr (address);
2123                                 }
2124 #endif /* HAVE_STRUCT_IP_MREQN */
2125
2126                                 ret = _wapi_setsockopt (sock, system_level,
2127                                                         system_name, &mreq,
2128                                                         sizeof (mreq));
2129                         }
2130                         break;
2131                 }
2132 #endif /* HAVE_STRUCT_IP_MREQN || HAVE_STRUCT_IP_MREQ */
2133                 default:
2134                         /* Cause an exception to be thrown */
2135                         *error = WSAEINVAL;
2136                         return;
2137                 }
2138         } else if (byte_val!=NULL) {
2139                 int valsize=mono_array_length(byte_val);
2140                 guchar *buf=mono_array_addr(byte_val, guchar, 0);
2141
2142                 ret = _wapi_setsockopt (sock, system_level, system_name, buf, valsize);
2143                 if(ret==SOCKET_ERROR) {
2144                         *error = WSAGetLastError ();
2145                         return;
2146                 }
2147         } else {
2148                 /* ReceiveTimeout/SendTimeout get here */
2149                 switch(name) {
2150                 case SocketOptionName_DontFragment:
2151 #ifdef HAVE_IP_MTU_DISCOVER
2152                         /* Fiddle with the value slightly if we're
2153                          * turning DF on
2154                          */
2155                         if (int_val == 1) {
2156                                 int_val = IP_PMTUDISC_DO;
2157                         }
2158                         /* Fall through */
2159 #endif
2160
2161                 default:
2162                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2163                 }
2164         }
2165
2166         if(ret==SOCKET_ERROR) {
2167                 *error = WSAGetLastError ();
2168         }
2169 }
2170
2171 void ves_icall_System_Net_Sockets_Socket_Shutdown_internal(SOCKET sock,
2172                                                            gint32 how,
2173                                                            gint32 *error)
2174 {
2175         int ret;
2176
2177         MONO_ARCH_SAVE_REGS;
2178
2179         *error = 0;
2180
2181         /* Currently, the values for how (recv=0, send=1, both=2) match
2182          * the BSD API
2183          */
2184         ret = _wapi_shutdown (sock, how);
2185         if(ret==SOCKET_ERROR) {
2186                 *error = WSAGetLastError ();
2187         }
2188 }
2189
2190 gint
2191 ves_icall_System_Net_Sockets_Socket_WSAIoctl (SOCKET sock, gint32 code,
2192                                               MonoArray *input,
2193                                               MonoArray *output, gint32 *error)
2194 {
2195         glong output_bytes = 0;
2196         gchar *i_buffer, *o_buffer;
2197         gint i_len, o_len;
2198         gint ret;
2199
2200         MONO_ARCH_SAVE_REGS;
2201
2202         *error = 0;
2203
2204         if (code == FIONBIO) {
2205                 /* Invalid command. Must use Socket.Blocking */
2206                 return -1;
2207         }
2208
2209         if (input == NULL) {
2210                 i_buffer = NULL;
2211                 i_len = 0;
2212         } else {
2213                 i_buffer = mono_array_addr (input, gchar, 0);
2214                 i_len = mono_array_length (input);
2215         }
2216
2217         if (output == NULL) {
2218                 o_buffer = NULL;
2219                 o_len = 0;
2220         } else {
2221                 o_buffer = mono_array_addr (output, gchar, 0);
2222                 o_len = mono_array_length (output);
2223         }
2224
2225         ret = WSAIoctl (sock, code, i_buffer, i_len, o_buffer, o_len, &output_bytes, NULL, NULL);
2226         if (ret == SOCKET_ERROR) {
2227                 *error = WSAGetLastError ();
2228                 return(-1);
2229         }
2230
2231         return (gint) output_bytes;
2232 }
2233
2234 #ifdef HAVE_SIOCGIFCONF
2235 static gboolean
2236 is_loopback (int family, void *ad)
2237 {
2238         char *ptr = (char *) ad;
2239
2240         if (family == AF_INET) {
2241                 return (ptr [0] == 127);
2242         }
2243 #ifdef AF_INET6
2244         else {
2245                 return (IN6_IS_ADDR_LOOPBACK ((struct in6_addr *) ptr));
2246         }
2247 #endif
2248         return FALSE;
2249 }
2250
2251 static void *
2252 get_local_ips (int family, int *nips)
2253 {
2254         int addr_size, offset, fd, i, count;
2255         int max_ifaces = 50; /* 50 interfaces should be enough... */
2256         struct ifconf ifc;
2257         struct ifreq *ifr;
2258         struct ifreq iflags;
2259         char *result, *tmp_ptr;
2260         gboolean ignore_loopback = FALSE;
2261
2262         *nips = 0;
2263         if (family == AF_INET) {
2264                 addr_size = sizeof (struct in_addr);
2265                 offset = G_STRUCT_OFFSET (struct sockaddr_in, sin_addr);
2266 #ifdef AF_INET6
2267         } else if (family == AF_INET6) {
2268                 addr_size = sizeof (struct in6_addr);
2269                 offset = G_STRUCT_OFFSET (struct sockaddr_in6, sin6_addr);
2270 #endif
2271         } else {
2272                 return NULL;
2273         }
2274
2275         fd = socket (family, SOCK_STREAM, 0);
2276
2277         ifc.ifc_len = max_ifaces * sizeof (struct ifreq);
2278         ifc.ifc_buf = g_malloc (ifc.ifc_len);
2279         if (ioctl (fd, SIOCGIFCONF, &ifc) < 0) {
2280                 close (fd);
2281                 g_free (ifc.ifc_buf);
2282                 return NULL;
2283         }
2284
2285         count = ifc.ifc_len / sizeof (struct ifreq);
2286         *nips = count;
2287         if (count == 0) {
2288                 g_free (ifc.ifc_buf);
2289                 close (fd);
2290                 return NULL;
2291         }
2292
2293         for (i = 0, ifr = ifc.ifc_req; i < *nips; i++, ifr++) {
2294                 strcpy (iflags.ifr_name, ifr->ifr_name);
2295                 if (ioctl (fd, SIOCGIFFLAGS, &iflags) < 0) {
2296                         continue;
2297                 }
2298
2299                 if ((iflags.ifr_flags & IFF_UP) == 0) {
2300                         ifr->ifr_name [0] = '\0';
2301                         continue;
2302                 }
2303
2304                 if ((iflags.ifr_flags & IFF_LOOPBACK) == 0) {
2305                         ignore_loopback = TRUE;
2306                 }
2307         }
2308
2309         close (fd);
2310         result = g_malloc (addr_size * count);
2311         tmp_ptr = result;
2312         for (i = 0, ifr = ifc.ifc_req; i < count; i++, ifr++) {
2313                 if (ifr->ifr_name [0] == '\0') {
2314                         (*nips)--;
2315                         continue;
2316                 }
2317
2318                 if (ignore_loopback && is_loopback (family, ((char *) &ifr->ifr_addr) + offset)) {
2319                         (*nips)--;
2320                         continue;
2321                 }
2322
2323                 memcpy (tmp_ptr, ((char *) &ifr->ifr_addr) + offset, addr_size);
2324                 tmp_ptr += addr_size;
2325         }
2326
2327         g_free (ifc.ifc_buf);
2328         return result;
2329 }
2330 #else
2331 static void *
2332 get_local_ips (int family, int *nips)
2333 {
2334         *nips = 0;
2335         return NULL;
2336 }
2337
2338 #endif /* HAVE_SIOCGIFCONF */
2339
2340 #ifndef AF_INET6
2341 static gboolean hostent_to_IPHostEntry(struct hostent *he, MonoString **h_name,
2342                                        MonoArray **h_aliases,
2343                                        MonoArray **h_addr_list,
2344                                        gboolean add_local_ips)
2345 {
2346         MonoDomain *domain = mono_domain_get ();
2347         int i = 0;
2348         struct in_addr *local_in = NULL;
2349         int nlocal_in = 0;
2350
2351         if (he != NULL) {
2352                 if(he->h_length!=4 || he->h_addrtype!=AF_INET) {
2353                         return(FALSE);
2354                 }
2355
2356                 *h_name=mono_string_new(domain, he->h_name);
2357
2358                 while(he->h_aliases[i]!=NULL) {
2359                         i++;
2360                 }
2361
2362                 *h_aliases=mono_array_new(domain, mono_get_string_class (), i);
2363                 i=0;
2364                 while(he->h_aliases[i]!=NULL) {
2365                         MonoString *alias;
2366
2367                         alias=mono_string_new(domain, he->h_aliases[i]);
2368                         mono_array_setref (*h_aliases, i, alias);
2369                         i++;
2370                 }
2371         } else if (!add_local_ips) {
2372                 return FALSE;
2373         }
2374
2375         if (add_local_ips) {
2376                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2377                 if (nlocal_in) {
2378                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), nlocal_in);
2379                         for (i = 0; i < nlocal_in; i++) {
2380                                 MonoString *addr_string;
2381                                 char addr [16], *ptr;
2382
2383                                 ptr = (char *) &local_in [i];
2384                                 g_snprintf(addr, 16, "%u.%u.%u.%u",
2385                                          (unsigned char) ptr [0],
2386                                          (unsigned char) ptr [1],
2387                                          (unsigned char) ptr [2],
2388                                          (unsigned char) ptr [3]);
2389
2390                                 addr_string = mono_string_new (domain, addr);
2391                                 mono_array_setref (*h_addr_list, i, addr_string);
2392                                 i++;
2393                         }
2394
2395                         g_free (local_in);
2396                 } else if (he == NULL) {
2397                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2398                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2399                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2400                         return TRUE;
2401                 }
2402         }
2403
2404         if (nlocal_in == 0 && he != NULL) {
2405                 i = 0;
2406                 while (he->h_addr_list[i]!=NULL) {
2407                         i++;
2408                 }
2409
2410                 *h_addr_list=mono_array_new(domain, mono_get_string_class (), i);
2411                 i=0;
2412                 while(he->h_addr_list[i]!=NULL) {
2413                         MonoString *addr_string;
2414                         char addr[16];
2415
2416                         g_snprintf(addr, 16, "%u.%u.%u.%u",
2417                                  (unsigned char)he->h_addr_list[i][0],
2418                                  (unsigned char)he->h_addr_list[i][1],
2419                                  (unsigned char)he->h_addr_list[i][2],
2420                                  (unsigned char)he->h_addr_list[i][3]);
2421
2422                         addr_string=mono_string_new(domain, addr);
2423                         mono_array_setref (*h_addr_list, i, addr_string);
2424                         i++;
2425                 }
2426         }
2427
2428         return(TRUE);
2429 }
2430
2431 static gboolean ipaddr_to_IPHostEntry(const char *addr, MonoString **h_name,
2432                                       MonoArray **h_aliases,
2433                                       MonoArray **h_addr_list)
2434 {
2435         MonoDomain *domain = mono_domain_get ();
2436
2437         *h_name=mono_string_new(domain, addr);
2438         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2439         *h_addr_list=mono_array_new(domain, mono_get_string_class (), 1);
2440         mono_array_setref (*h_addr_list, 0, *h_name);
2441
2442         return(TRUE);
2443 }
2444 #endif
2445
2446 #if defined(AF_INET6) && defined(HAVE_GETHOSTBYNAME2_R)
2447 static gboolean hostent_to_IPHostEntry2(struct hostent *he1,struct hostent *he2, MonoString **h_name,
2448                                 MonoArray **h_aliases, MonoArray **h_addr_list, gboolean add_local_ips)
2449 {
2450         MonoDomain *domain = mono_domain_get ();
2451         int i, host_count, host_index, family_hint;
2452         struct in_addr *local_in = NULL;
2453         int nlocal_in = 0;
2454         struct in6_addr *local_in6 = NULL;
2455         int nlocal_in6 = 0;
2456         gboolean from_local = FALSE;
2457
2458         family_hint = get_family_hint ();
2459
2460         /*
2461          * Check if address length and family are correct
2462          */
2463         if (he1 != NULL && (he1->h_length!=4 || he1->h_addrtype!=AF_INET)) {
2464                 return(FALSE);
2465         }
2466
2467         if (he2 != NULL && (he2->h_length!=16 || he2->h_addrtype!=AF_INET6)) {
2468                 return(FALSE);
2469         }
2470
2471         /*
2472          * Get the aliases and host name from he1 or he2 whichever is
2473          * not null, if he1 is not null then take aliases from he1
2474          */
2475         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2476                             family_hint == PF_INET)) {
2477                 *h_name=mono_string_new (domain, he1->h_name);
2478
2479                 i=0;
2480                 while(he1->h_aliases[i]!=NULL) {
2481                         i++;
2482                 }
2483
2484                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2485                                            i);
2486                 i=0;
2487                 while(he1->h_aliases[i]!=NULL) {
2488                         MonoString *alias;
2489
2490                         alias=mono_string_new (domain, he1->h_aliases[i]);
2491                         mono_array_setref (*h_aliases, i, alias);
2492                         i++;
2493                 }
2494         } else if (he2 != NULL && (family_hint == PF_UNSPEC ||
2495                                    family_hint == PF_INET6)) {
2496                 *h_name=mono_string_new (domain, he2->h_name);
2497
2498                 i=0;
2499                 while(he2->h_aliases [i] != NULL) {
2500                         i++;
2501                 }
2502
2503                 *h_aliases=mono_array_new (domain, mono_get_string_class (),
2504                                            i);
2505                 i=0;
2506                 while(he2->h_aliases[i]!=NULL) {
2507                         MonoString *alias;
2508
2509                         alias=mono_string_new (domain, he2->h_aliases[i]);
2510                         mono_array_setref (*h_aliases, i, alias);
2511                         i++;
2512                 }
2513         } else if (!add_local_ips) {
2514                 return(FALSE);
2515         }
2516
2517         /*
2518          * Count the number of addresses in he1 + he2
2519          */
2520         host_count = 0;
2521         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2522                             family_hint == PF_INET)) {
2523                 i=0;
2524                 while(he1->h_addr_list[i]!=NULL) {
2525                         i++;
2526                         host_count++;
2527                 }
2528         }
2529
2530         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2531                             family_hint == PF_INET6)) {
2532                 i=0;
2533                 while(he2->h_addr_list[i]!=NULL) {
2534                         i++;
2535                         host_count++;
2536                 }
2537         }
2538
2539         /*
2540          * Fills the array
2541          */
2542         host_index = 0;
2543         if (add_local_ips) {
2544                 if (family_hint == PF_UNSPEC || family_hint == PF_INET)
2545                         local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2546
2547                 if (family_hint == PF_UNSPEC || family_hint == PF_INET6)
2548                         local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2549
2550                 if (nlocal_in || nlocal_in6) {
2551                         from_local = TRUE;
2552                         *h_addr_list = mono_array_new (domain, mono_get_string_class (),
2553                                                              nlocal_in + nlocal_in6);
2554
2555                         if (nlocal_in6) {
2556                                 int n;
2557                                 for (n = 0; n < nlocal_in6; n++) {
2558                                         MonoString *addr_string;
2559                                         const char *ret;
2560                                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes with the trailing NULL */
2561
2562                                         ret = inet_ntop (AF_INET6, &local_in6 [n], addr, sizeof(addr));
2563
2564                                         if (ret != NULL) {
2565                                                 addr_string = mono_string_new (domain, addr);
2566                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2567                                                 host_index++;
2568                                         }
2569                                 }
2570                         }
2571
2572                         if (nlocal_in) {
2573                                 int n;
2574                                 for (n = 0; n < nlocal_in; n++) {
2575                                         MonoString *addr_string;
2576                                         const char *ret;
2577                                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2578
2579                                         ret = inet_ntop (AF_INET, &local_in [n], addr, sizeof(addr));
2580
2581                                         if (ret != NULL) {
2582                                                 addr_string = mono_string_new (domain, addr);
2583                                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2584                                                 host_index++;
2585                                         }
2586                                 }
2587                         }
2588                         g_free (local_in);
2589                         g_free (local_in6);
2590                         return TRUE;
2591                 } else if (he1 == NULL && he2 == NULL) {
2592                         /* If requesting "" and there are no other interfaces up, MS returns 127.0.0.1 */
2593                         *h_addr_list = mono_array_new(domain, mono_get_string_class (), 1);
2594                         mono_array_setref (*h_addr_list, 0, mono_string_new (domain, "127.0.0.1"));
2595                         g_free (local_in);
2596                         g_free (local_in6);
2597                         return TRUE;
2598                 }
2599
2600                 g_free (local_in);
2601                 g_free (local_in6);
2602         }
2603
2604         *h_addr_list=mono_array_new (domain, mono_get_string_class (), host_count);
2605
2606         if (he2 != NULL && (family_hint == PF_UNSPEC ||
2607                             family_hint == PF_INET6)) {
2608                 i = 0;
2609                 while(he2->h_addr_list[i] != NULL) {
2610                         MonoString *addr_string;
2611                         const char *ret;
2612                         char addr[48]; /* INET6_ADDRSTRLEN == 46, but IPv6 addresses can be 48 bytes long with the trailing NULL */
2613
2614                         ret = inet_ntop (AF_INET6, he2->h_addr_list[i], addr,
2615                                          sizeof(addr));
2616
2617                         if (ret != NULL) {
2618                                 addr_string = mono_string_new (domain, addr);
2619                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2620                                 i++;
2621                                 host_index++;
2622                         }
2623                 }
2624         }
2625
2626         if (he1 != NULL && (family_hint == PF_UNSPEC ||
2627                             family_hint == PF_INET)) {
2628                 i=0;
2629                 while(he1->h_addr_list[i] != NULL) {
2630                         MonoString *addr_string;
2631                         const char *ret;
2632                         char addr[16]; /* INET_ADDRSTRLEN == 16 */
2633
2634                         ret = inet_ntop (AF_INET, he1->h_addr_list[i], addr,
2635                                          sizeof(addr));
2636
2637                         if (ret != NULL) {
2638                                 addr_string=mono_string_new (domain, addr);
2639                                 mono_array_setref (*h_addr_list, host_index, addr_string);
2640                                 i++;
2641                                 host_index++;
2642                         }
2643                 }
2644         }
2645
2646         return(TRUE);
2647 }
2648 #endif
2649
2650 #if defined(AF_INET6)
2651 static gboolean
2652 addrinfo_to_IPHostEntry(struct addrinfo *info, MonoString **h_name,
2653                                                 MonoArray **h_aliases,
2654                                                 MonoArray **h_addr_list,
2655                                                 gboolean add_local_ips)
2656 {
2657         gint32 count, i;
2658         struct addrinfo *ai = NULL;
2659         struct in_addr *local_in = NULL;
2660         int nlocal_in = 0;
2661         struct in6_addr *local_in6 = NULL;
2662         int nlocal_in6 = 0;
2663         int addr_index;
2664
2665         MonoDomain *domain = mono_domain_get ();
2666
2667         addr_index = 0;
2668         *h_aliases=mono_array_new(domain, mono_get_string_class (), 0);
2669         if (add_local_ips) {
2670                 local_in = (struct in_addr *) get_local_ips (AF_INET, &nlocal_in);
2671                 local_in6 = (struct in6_addr *) get_local_ips (AF_INET6, &nlocal_in6);
2672                 if (nlocal_in || nlocal_in6) {
2673                         *h_addr_list=mono_array_new(domain, mono_get_string_class (), nlocal_in + nlocal_in6);
2674                         if (nlocal_in) {
2675                                 MonoString *addr_string;
2676                                 char addr [16];
2677                                 int i;
2678
2679                                 for (i = 0; i < nlocal_in; i++) {
2680                                         inet_ntop (AF_INET, &local_in [i], addr, sizeof (addr));
2681                                         addr_string = mono_string_new (domain, addr);
2682                                         mono_array_setref (*h_addr_list, addr_index, addr_string);
2683                                         addr_index++;
2684                                 }
2685                         }
2686
2687                         if (nlocal_in6) {
2688                                 MonoString *addr_string;
2689                                 const char *ret;
2690                                 char addr [48];
2691                                 int i;
2692
2693                                 for (i = 0; i < nlocal_in6; i++) {
2694                                         ret = inet_ntop (AF_INET6, &local_in6 [i], addr, sizeof (addr));
2695                                         if (ret != NULL) {
2696                                                 addr_string = mono_string_new (domain, addr);
2697                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2698                                                 addr_index++;
2699                                         }
2700                                 }
2701                         }
2702
2703                         g_free (local_in);
2704                         g_free (local_in6);
2705                         if (info) {
2706                                 freeaddrinfo (info);
2707                         }
2708                         return TRUE;
2709                 }
2710
2711                 g_free (local_in);
2712                 g_free (local_in6);
2713         }
2714
2715         for (count=0, ai=info; ai!=NULL; ai=ai->ai_next) {
2716                 if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6)
2717                         continue;
2718
2719                 count++;
2720         }
2721
2722         *h_addr_list=mono_array_new(domain, mono_get_string_class (), count);
2723
2724         for (ai=info, i=0; ai!=NULL; ai=ai->ai_next) {
2725                 MonoString *addr_string;
2726                 const char *ret;
2727                 char buffer [48]; /* Max. size for IPv6 */
2728
2729                 if((ai->ai_family != PF_INET) && (ai->ai_family != PF_INET6)) {
2730                         continue;
2731                 }
2732
2733                 if(ai->ai_family == PF_INET) {
2734                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr), buffer, 16);
2735                 } else {
2736                         ret = inet_ntop(ai->ai_family, (void*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr), buffer, 48);
2737                 }
2738
2739                 if(ret) {
2740                         addr_string=mono_string_new(domain, buffer);
2741                 } else {
2742                         addr_string=mono_string_new(domain, "");
2743                 }
2744
2745                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2746
2747                 if(!i) {
2748                         if (ai->ai_canonname != NULL) {
2749                                 *h_name=mono_string_new(domain, ai->ai_canonname);
2750                         } else {
2751                                 *h_name=mono_string_new(domain, buffer);
2752                         }
2753                 }
2754
2755                 addr_index++;
2756         }
2757
2758         if(info) {
2759                 freeaddrinfo(info);
2760         }
2761
2762         return(TRUE);
2763 }
2764 #endif
2765
2766 #ifdef AF_INET6
2767 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2768 {
2769         gboolean add_local_ips = FALSE;
2770 #ifdef HAVE_SIOCGIFCONF
2771         gchar this_hostname [256];
2772 #endif
2773 #if !defined(HAVE_GETHOSTBYNAME2_R)
2774         struct addrinfo *info = NULL, hints;
2775         char *hostname;
2776
2777         MONO_ARCH_SAVE_REGS;
2778
2779         hostname=mono_string_to_utf8 (host);
2780         if (*hostname == '\0')
2781                 add_local_ips = TRUE;
2782 #ifdef HAVE_SIOCGIFCONF
2783         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2784                 if (!strcmp (hostname, this_hostname))
2785                         add_local_ips = TRUE;
2786         }
2787 #endif
2788
2789         memset(&hints, 0, sizeof(hints));
2790         hints.ai_family = get_family_hint ();
2791         hints.ai_socktype = SOCK_STREAM;
2792         hints.ai_flags = AI_CANONNAME;
2793
2794         if (*hostname && getaddrinfo(hostname, NULL, &hints, &info) == -1) {
2795                 return(FALSE);
2796         }
2797
2798         g_free(hostname);
2799
2800         return(addrinfo_to_IPHostEntry(info, h_name, h_aliases, h_addr_list, add_local_ips));
2801 #else
2802         struct hostent he1,*hp1, he2, *hp2;
2803         int buffer_size1, buffer_size2;
2804         char *buffer1, *buffer2;
2805         int herr;
2806         gboolean return_value;
2807         char *hostname;
2808
2809         MONO_ARCH_SAVE_REGS;
2810
2811         hostname=mono_string_to_utf8 (host);
2812         if (*hostname == '\0')
2813                 add_local_ips = TRUE;
2814
2815 #ifdef HAVE_SIOCGIFCONF
2816         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2817                 if (!strcmp (hostname, this_hostname))
2818                         add_local_ips = TRUE;
2819         }
2820 #endif
2821
2822         buffer_size1 = 512;
2823         buffer_size2 = 512;
2824         buffer1 = g_malloc0(buffer_size1);
2825         buffer2 = g_malloc0(buffer_size2);
2826
2827         hp1 = NULL;
2828         hp2 = NULL;
2829         while (*hostname && gethostbyname2_r(hostname, AF_INET, &he1, buffer1, buffer_size1,
2830                                 &hp1, &herr) == ERANGE) {
2831                 buffer_size1 *= 2;
2832                 buffer1 = g_realloc(buffer1, buffer_size1);
2833         }
2834
2835         if (*hostname && hp1 == NULL)
2836         {
2837                 while (gethostbyname2_r(hostname, AF_INET6, &he2, buffer2,
2838                                         buffer_size2, &hp2, &herr) == ERANGE) {
2839                         buffer_size2 *= 2;
2840                         buffer2 = g_realloc(buffer2, buffer_size2);
2841                 }
2842         }
2843
2844         return_value = hostent_to_IPHostEntry2(hp1, hp2, h_name, h_aliases,
2845                                                h_addr_list, add_local_ips);
2846
2847         g_free(buffer1);
2848         g_free(buffer2);
2849         g_free(hostname);
2850
2851         return(return_value);
2852 #endif /* HAVE_GETHOSTBYNAME2_R */
2853 }
2854 #else /* AF_INET6 */
2855 MonoBoolean ves_icall_System_Net_Dns_GetHostByName_internal(MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2856 {
2857         struct hostent *he;
2858         char *hostname;
2859         gboolean add_local_ips = FALSE;
2860 #ifdef HAVE_SIOCGIFCONF
2861         gchar this_hostname [256];
2862 #endif
2863
2864         MONO_ARCH_SAVE_REGS;
2865
2866         hostname=mono_string_to_utf8(host);
2867         if (*hostname == '\0')
2868                 add_local_ips = TRUE;
2869 #ifdef HAVE_SIOCGIFCONF
2870         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2871                 if (!strcmp (hostname, this_hostname))
2872                         add_local_ips = TRUE;
2873         }
2874 #endif
2875
2876         he = NULL;
2877         if (*hostname)
2878                 he = _wapi_gethostbyname (hostname);
2879         g_free(hostname);
2880
2881         if (*hostname && he==NULL)
2882                 return(FALSE);
2883
2884         return(hostent_to_IPHostEntry(he, h_name, h_aliases, h_addr_list, add_local_ips));
2885 }
2886 #endif /* AF_INET6 */
2887
2888 #ifndef HAVE_INET_PTON
2889 static int
2890 inet_pton (int family, const char *address, void *inaddrp)
2891 {
2892         if (family == AF_INET) {
2893 #ifdef HAVE_INET_ATON
2894                 struct in_addr inaddr;
2895
2896                 if (!inet_aton (address, &inaddr))
2897                         return 0;
2898
2899                 memcpy (inaddrp, &inaddr, sizeof (struct in_addr));
2900                 return 1;
2901 #else
2902                 /* assume the system has inet_addr(), if it doesn't
2903                    have that we're pretty much screwed... */
2904                 guint32 inaddr;
2905
2906                 if (!strcmp (address, "255.255.255.255")) {
2907                         /* special-case hack */
2908                         inaddr = 0xffffffff;
2909                 } else {
2910                         inaddr = inet_addr (address);
2911 #ifndef INADDR_NONE
2912 #define INADDR_NONE ((in_addr_t) -1)
2913 #endif
2914                         if (inaddr == INADDR_NONE)
2915                                 return 0;
2916                 }
2917
2918                 memcpy (inaddrp, &inaddr, sizeof (guint32));
2919                 return 1;
2920 #endif /* HAVE_INET_ATON */
2921         }
2922
2923         return -1;
2924 }
2925 #endif /* !HAVE_INET_PTON */
2926
2927 extern MonoBoolean ves_icall_System_Net_Dns_GetHostByAddr_internal(MonoString *addr, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2928 {
2929         char *address;
2930         gboolean v1;
2931
2932 #ifdef AF_INET6
2933         struct sockaddr_in saddr;
2934         struct sockaddr_in6 saddr6;
2935         struct addrinfo *info = NULL, hints;
2936         gint32 family;
2937         char hostname[1024] = {0};
2938         int flags = 0;
2939 #else
2940         struct in_addr inaddr;
2941         struct hostent *he;
2942         gboolean ret;
2943 #endif
2944
2945         v1 = mono_framework_version () == 1;
2946
2947         address = mono_string_to_utf8 (addr);
2948
2949 #ifdef AF_INET6
2950         if (inet_pton (AF_INET, address, &saddr.sin_addr ) <= 0) {
2951                 /* Maybe an ipv6 address */
2952                 if (inet_pton (AF_INET6, address, &saddr6.sin6_addr) <= 0) {
2953                         g_free (address);
2954                         return FALSE;
2955                 }
2956                 else {
2957                         family = AF_INET6;
2958                         saddr6.sin6_family = AF_INET6;
2959                 }
2960         }
2961         else {
2962                 family = AF_INET;
2963                 saddr.sin_family = AF_INET;
2964         }
2965         g_free(address);
2966
2967         if (v1) {
2968                 flags = NI_NAMEREQD;
2969         }
2970
2971         if(family == AF_INET) {
2972 #if HAVE_SOCKADDR_IN_SIN_LEN
2973                 saddr.sin_len = sizeof (saddr);
2974 #endif
2975                 if(getnameinfo ((struct sockaddr*)&saddr, sizeof(saddr),
2976                                 hostname, sizeof(hostname), NULL, 0,
2977                                 flags) != 0) {
2978                         return(FALSE);
2979                 }
2980         } else if(family == AF_INET6) {
2981 #if HAVE_SOCKADDR_IN6_SIN_LEN
2982                 saddr6.sin6_len = sizeof (saddr6);
2983 #endif
2984                 if(getnameinfo ((struct sockaddr*)&saddr6, sizeof(saddr6),
2985                                 hostname, sizeof(hostname), NULL, 0,
2986                                 flags) != 0) {
2987                         return(FALSE);
2988                 }
2989         }
2990
2991         memset (&hints, 0, sizeof(hints));
2992         hints.ai_family = get_family_hint ();
2993         hints.ai_socktype = SOCK_STREAM;
2994         hints.ai_flags = AI_CANONNAME;
2995
2996         if( getaddrinfo (hostname, NULL, &hints, &info) == -1 ) {
2997                 return(FALSE);
2998         }
2999
3000         return(addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, FALSE));
3001 #else
3002         if (inet_pton (AF_INET, address, &inaddr) <= 0) {
3003                 g_free (address);
3004                 return(FALSE);
3005         }
3006
3007         if ((he = gethostbyaddr ((char *) &inaddr, sizeof (inaddr), AF_INET)) == NULL) {
3008                 if (v1) {
3009                         ret = FALSE;
3010                 } else {
3011                         ret = ipaddr_to_IPHostEntry (address, h_name,
3012                                                      h_aliases, h_addr_list);
3013                 }
3014         } else {
3015                 ret = hostent_to_IPHostEntry (he, h_name, h_aliases,
3016                                               h_addr_list, FALSE);
3017         }
3018
3019         g_free (address);
3020         return(ret);
3021 #endif
3022 }
3023
3024 extern MonoBoolean ves_icall_System_Net_Dns_GetHostName_internal(MonoString **h_name)
3025 {
3026         gchar hostname[256];
3027         int ret;
3028
3029         MONO_ARCH_SAVE_REGS;
3030
3031         ret = gethostname (hostname, sizeof (hostname));
3032         if(ret==-1) {
3033                 return(FALSE);
3034         }
3035
3036         *h_name=mono_string_new(mono_domain_get (), hostname);
3037
3038         return(TRUE);
3039 }
3040
3041 void mono_network_init(void)
3042 {
3043         WSADATA wsadata;
3044         int err;
3045
3046         err=WSAStartup(MAKEWORD(2,0), &wsadata);
3047         if(err!=0) {
3048                 g_error(G_GNUC_PRETTY_FUNCTION ": Couldn't initialise networking");
3049                 exit(-1);
3050         }
3051
3052 #ifdef DEBUG
3053         g_message(G_GNUC_PRETTY_FUNCTION ": Using socket library: %s", wsadata.szDescription);
3054         g_message(G_GNUC_PRETTY_FUNCTION ": Socket system status: %s", wsadata.szSystemStatus);
3055 #endif
3056 }
3057
3058 void mono_network_cleanup(void)
3059 {
3060         WSACleanup();
3061 }
3062