reactos/dll/win32/libtirpc/src/rpc_generic.c

   1 /*
   2  * Copyright (c) 2009, Sun Microsystems, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  * - Redistributions of source code must retain the above copyright notice,
   8  *   this list of conditions and the following disclaimer.
   9  * - Redistributions in binary form must reproduce the above copyright notice,
  10  *   this list of conditions and the following disclaimer in the documentation
  11  *   and/or other materials provided with the distribution.
  12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  13  *   contributors may be used to endorse or promote products derived
  14  *   from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28 /*
  29  * Copyright (c) 1986-1991 by Sun Microsystems Inc.
  30  */
  31
  32 //#include <sys/cdefs.h>
  33
  34 /*
  35  * rpc_generic.c, Miscl routines for RPC.
  36  *
  37  */
  38 #include <wintirpc.h>
  39 //#include <pthread.h>
  40 #include <reentrant.h>
  41 #include <sys/types.h>
  42 //#include <sys/param.h>
  43 //#include <sys/socket.h>
  44 //#include <sys/time.h>
  45 //#include <sys/un.h>
  46 //#include <sys/resource.h>
  47 //#include <netinet/in.h>
  48 //#include <arpa/inet.h>
  49 #include <rpc/rpc.h>
  50 //#include <ctype.h>
  51 //#include <stddef.h>
  52 #include <stdio.h>
  53 //#include <netdb.h>
  54 #include <netconfig.h>
  55 #include <stdlib.h>
  56 #include <string.h>
  57 //#include <syslog.h>
  58 #include <rpc/nettype.h>
  59 #include "rpc_com.h"
  60
  61 struct handle {
  62         NCONF_HANDLE *nhandle;
  63         int nflag;              /* Whether NETPATH or NETCONFIG */
  64         int nettype;
  65 };
  66
  67 static const struct _rpcnettype {
  68         const char *name;
  69         const int type;
  70 } _rpctypelist[] = {
  71         { "netpath", _RPC_NETPATH },
  72         { "visible", _RPC_VISIBLE },
  73         { "circuit_v", _RPC_CIRCUIT_V },
  74         { "datagram_v", _RPC_DATAGRAM_V },
  75         { "circuit_n", _RPC_CIRCUIT_N },
  76         { "datagram_n", _RPC_DATAGRAM_N },
  77         { "tcp", _RPC_TCP },
  78         { "udp", _RPC_UDP },
  79         { 0, _RPC_NONE }
  80 };
  81
  82 struct netid_af {
  83         const char      *netid;
  84         ADDRESS_FAMILY          af;
  85         int             protocol;
  86 };
  87
  88 static const struct netid_af na_cvt[] = {
  89         { "udp",  AF_INET,  IPPROTO_UDP },
  90         { "tcp",  AF_INET,  IPPROTO_TCP },
  91 #ifdef INET6
  92         { "udp6", AF_INET6, IPPROTO_UDP },
  93         { "tcp6", AF_INET6, IPPROTO_TCP },
  94 #endif
  95 #ifdef AF_LOCAL
  96         { "local", AF_LOCAL, 0 }
  97 #endif
  98 };
  99
 100 #if 0
 101 static char *strlocase(char *);
 102 #endif
 103 static int getnettype(const char *);
 104
 105 /*
 106  * Cache the result of getrlimit(), so we don't have to do an
 107  * expensive call every time.
 108  */
 109 int
 110 __rpc_dtbsize()
 111 {
 112 #ifdef _WIN32
 113         return (WINSOCK_HANDLE_HASH_SIZE);
 114 #else
 115
 116         static int tbsize;
 117         struct rlimit rl;
 118
 119         if (tbsize) {
 120                 return (tbsize);
 121         }
 122         if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
 123                 return (tbsize = (int)rl.rlim_max);
 124         }
 125         /*
 126          * Something wrong.  I'll try to save face by returning a
 127          * pessimistic number.
 128          */
 129         return (32);
 130 #endif
 131 }
 132
 133
 134 /*
 135  * Find the appropriate buffer size
 136  */
 137 u_int
 138 /*ARGSUSED*/
 139 __rpc_get_t_size(af, proto, size)
 140         int af, proto;
 141         int size;       /* Size requested */
 142 {
 143         int maxsize, defsize;
 144
 145         maxsize = 256 * 1024;   /* XXX */
 146         switch (proto) {
 147         case IPPROTO_TCP:
 148                 defsize = 1024 * 1024;  /* XXX */
 149                 break;
 150         case IPPROTO_UDP:
 151                 defsize = UDPMSGSIZE;
 152                 break;
 153         default:
 154                 defsize = RPC_MAXDATASIZE;
 155                 break;
 156         }
 157         if (size == 0)
 158                 return defsize;
 159 #if 1
 160     /* cbodley- give us the size we ask for, or we'll get fragmented! */
 161     return (u_int)size;
 162 #else
 163         /* Check whether the value is within the upper max limit */
 164         return (size > maxsize ? (u_int)maxsize : (u_int)size);
 165 #endif
 166 }
 167
 168 /*
 169  * Find the appropriate address buffer size
 170  */
 171 u_int
 172 __rpc_get_a_size(af)
 173         int af;
 174 {
 175         switch (af) {
 176         case AF_INET:
 177                 return sizeof (struct sockaddr_in);
 178 #ifdef INET6
 179         case AF_INET6:
 180                 return sizeof (struct sockaddr_in6);
 181 #endif
 182 #ifdef AF_LOCAL
 183         case AF_LOCAL:
 184                 return sizeof (struct sockaddr_un);
 185 #endif
 186         default:
 187                 break;
 188         }
 189         return ((u_int)RPC_MAXADDRSIZE);
 190 }
 191
 192 #if 0
 193 static char *
 194 strlocase(p)
 195         char *p;
 196 {
 197         char *t = p;
 198
 199         for (; *p; p++)
 200                 if (isupper(*p))
 201                         *p = tolower(*p);
 202         return (t);
 203 }
 204 #endif
 205
 206 /*
 207  * Returns the type of the network as defined in <rpc/nettype.h>
 208  * If nettype is NULL, it defaults to NETPATH.
 209  */
 210 static int
 211 getnettype(nettype)
 212         const char *nettype;
 213 {
 214         int i;
 215
 216         if ((nettype == NULL) || (nettype[0] == 0)) {
 217                 return (_RPC_NETPATH);  /* Default */
 218         }
 219
 220 #if 0
 221         nettype = strlocase(nettype);
 222 #endif
 223         for (i = 0; _rpctypelist[i].name; i++)
 224                 if (strcasecmp(nettype, _rpctypelist[i].name) == 0) {
 225                         return (_rpctypelist[i].type);
 226                 }
 227         return (_rpctypelist[i].type);
 228 }
 229
 230 /*
 231  * For the given nettype (tcp or udp only), return the first structure found.
 232  * This should be freed by calling freenetconfigent()
 233  */
 234 struct netconfig *
 235 __rpc_getconfip(nettype)
 236         const char *nettype;
 237 {
 238         char *netid;
 239         char *netid_tcp = (char *) NULL;
 240         char *netid_udp = (char *) NULL;
 241         struct netconfig *dummy;
 242         extern thread_key_t tcp_key, udp_key;
 243         extern mutex_t tsd_lock;
 244
 245         if (tcp_key == -1) {
 246                 mutex_lock(&tsd_lock);
 247                 if (tcp_key == -1)
 248                         tcp_key = TlsAlloc();   //thr_keycreate(&tcp_key, free);
 249                 mutex_unlock(&tsd_lock);
 250         }
 251         netid_tcp = (char *)thr_getspecific(tcp_key);
 252         if (udp_key == -1) {
 253                 mutex_lock(&tsd_lock);
 254                 if (udp_key == -1)
 255                         udp_key = TlsAlloc();   //thr_keycreate(&udp_key, free);
 256                 mutex_unlock(&tsd_lock);
 257         }
 258         netid_udp = (char *)thr_getspecific(udp_key);
 259         if (!netid_udp && !netid_tcp) {
 260                 struct netconfig *nconf;
 261                 void *confighandle;
 262
 263                 if (!(confighandle = setnetconfig())) {
 264                         //syslog (LOG_ERR, "rpc: failed to open " NETCONFIG);
 265                         return (NULL);
 266                 }
 267                 while ((nconf = getnetconfig(confighandle)) != NULL) {
 268                         if (strcmp(nconf->nc_protofmly, NC_INET) == 0 ||
 269                             strcmp(nconf->nc_protofmly, NC_INET6) == 0) {
 270                                 if (strcmp(nconf->nc_proto, NC_TCP) == 0 &&
 271                                                 netid_tcp == NULL) {
 272                                         netid_tcp = strdup(nconf->nc_netid);
 273                                         thr_setspecific(tcp_key,
 274                                                         (void *) netid_tcp);
 275                                 } else
 276                                 if (strcmp(nconf->nc_proto, NC_UDP) == 0 &&
 277                                                 netid_udp == NULL) {
 278                                         netid_udp = strdup(nconf->nc_netid);
 279                                         thr_setspecific(udp_key,
 280                                                 (void *) netid_udp);
 281                                 }
 282                         }
 283                 }
 284                 endnetconfig(confighandle);
 285         }
 286         if (strcmp(nettype, "udp") == 0)
 287                 netid = netid_udp;
 288         else if (strcmp(nettype, "tcp") == 0)
 289                 netid = netid_tcp;
 290         else {
 291                 return (NULL);
 292         }
 293         if ((netid == NULL) || (netid[0] == 0)) {
 294                 return (NULL);
 295         }
 296         dummy = getnetconfigent(netid);
 297         return (dummy);
 298 }
 299
 300 /*
 301  * Returns the type of the nettype, which should then be used with
 302  * __rpc_getconf().
 303  */
 304 void *
 305 __rpc_setconf(nettype)
 306         const char *nettype;
 307 {
 308         struct handle *handle;
 309
 310         handle = (struct handle *) malloc(sizeof (struct handle));
 311         if (handle == NULL) {
 312                 return (NULL);
 313         }
 314         switch (handle->nettype = getnettype(nettype)) {
 315         case _RPC_NETPATH:
 316         case _RPC_CIRCUIT_N:
 317         case _RPC_DATAGRAM_N:
 318                 if (!(handle->nhandle = setnetpath())) {
 319                         free(handle);
 320                         return (NULL);
 321                 }
 322                 handle->nflag = TRUE;
 323                 break;
 324         case _RPC_VISIBLE:
 325         case _RPC_CIRCUIT_V:
 326         case _RPC_DATAGRAM_V:
 327         case _RPC_TCP:
 328         case _RPC_UDP:
 329                 if (!(handle->nhandle = setnetconfig())) {
 330                         //syslog (LOG_ERR, "rpc: failed to open " NETCONFIG);
 331                         free(handle);
 332                         return (NULL);
 333                 }
 334                 handle->nflag = FALSE;
 335                 break;
 336         default:
 337                 return (NULL);
 338         }
 339
 340         return (handle);
 341 }
 342
 343 /*
 344  * Returns the next netconfig struct for the given "net" type.
 345  * __rpc_setconf() should have been called previously.
 346  */
 347 struct netconfig *
 348 __rpc_getconf(vhandle)
 349         void *vhandle;
 350 {
 351         struct handle *handle;
 352         struct netconfig *nconf;
 353
 354         handle = (struct handle *)vhandle;
 355         if (handle == NULL) {
 356                 return (NULL);
 357         }
 358         for (;;) {
 359                 if (handle->nflag)
 360                         nconf = getnetpath(handle->nhandle);
 361                 else
 362                         nconf = getnetconfig(handle->nhandle);
 363                 if (nconf == NULL)
 364                         break;
 365                 if ((nconf->nc_semantics != NC_TPI_CLTS) &&
 366                         (nconf->nc_semantics != NC_TPI_COTS) &&
 367                         (nconf->nc_semantics != NC_TPI_COTS_ORD))
 368                         continue;
 369                 switch (handle->nettype) {
 370                 case _RPC_VISIBLE:
 371                         if (!(nconf->nc_flag & NC_VISIBLE))
 372                                 continue;
 373                         /* FALLTHROUGH */
 374                 case _RPC_NETPATH:      /* Be happy */
 375                         break;
 376                 case _RPC_CIRCUIT_V:
 377                         if (!(nconf->nc_flag & NC_VISIBLE))
 378                                 continue;
 379                         /* FALLTHROUGH */
 380                 case _RPC_CIRCUIT_N:
 381                         if ((nconf->nc_semantics != NC_TPI_COTS) &&
 382                                 (nconf->nc_semantics != NC_TPI_COTS_ORD))
 383                                 continue;
 384                         break;
 385                 case _RPC_DATAGRAM_V:
 386                         if (!(nconf->nc_flag & NC_VISIBLE))
 387                                 continue;
 388                         /* FALLTHROUGH */
 389                 case _RPC_DATAGRAM_N:
 390                         if (nconf->nc_semantics != NC_TPI_CLTS)
 391                                 continue;
 392                         break;
 393                 case _RPC_TCP:
 394                         if (((nconf->nc_semantics != NC_TPI_COTS) &&
 395                                 (nconf->nc_semantics != NC_TPI_COTS_ORD)) ||
 396                                 (strcmp(nconf->nc_protofmly, NC_INET)
 397 #ifdef INET6
 398                                  && strcmp(nconf->nc_protofmly, NC_INET6))
 399 #else
 400                                 )
 401 #endif
 402                                 ||
 403                                 strcmp(nconf->nc_proto, NC_TCP))
 404                                 continue;
 405                         break;
 406                 case _RPC_UDP:
 407                         if ((nconf->nc_semantics != NC_TPI_CLTS) ||
 408                                 (strcmp(nconf->nc_protofmly, NC_INET)
 409 #ifdef INET6
 410                                 && strcmp(nconf->nc_protofmly, NC_INET6))
 411 #else
 412                                 )
 413 #endif
 414                                 ||
 415                                 strcmp(nconf->nc_proto, NC_UDP))
 416                                 continue;
 417                         break;
 418                 }
 419                 break;
 420         }
 421         return (nconf);
 422 }
 423
 424 void
 425 __rpc_endconf(vhandle)
 426         void * vhandle;
 427 {
 428         struct handle *handle;
 429
 430         handle = (struct handle *) vhandle;
 431         if (handle == NULL) {
 432                 return;
 433         }
 434         if (handle->nflag) {
 435                 endnetpath(handle->nhandle);
 436         } else {
 437                 endnetconfig(handle->nhandle);
 438         }
 439         free(handle);
 440 }
 441
 442 /*
 443  * Used to ping the NULL procedure for clnt handle.
 444  * Returns NULL if fails, else a non-NULL pointer.
 445  */
 446 void *
 447 rpc_nullproc(clnt)
 448         CLIENT *clnt;
 449 {
 450         struct timeval TIMEOUT = {25, 0};
 451
 452         if (clnt_call(clnt, NULLPROC, (xdrproc_t) xdr_void, NULL,
 453                 (xdrproc_t) xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) {
 454                 return (NULL);
 455         }
 456         return ((void *) clnt);
 457 }
 458
 459 /*
 460  * Try all possible transports until
 461  * one succeeds in finding the netconf for the given fd.
 462  */
 463 struct netconfig *
 464 __rpcgettp(fd)
 465         SOCKET fd;
 466 {
 467         const char *netid;
 468         struct __rpc_sockinfo si;
 469
 470         if (!__rpc_fd2sockinfo(fd, &si))
 471                 return NULL;
 472
 473         if (!__rpc_sockinfo2netid(&si, &netid))
 474                 return NULL;
 475
 476         /*LINTED const castaway*/
 477         return getnetconfigent((char *)netid);
 478 }
 479
 480 int
 481 __rpc_fd2sockinfo(SOCKET fd, struct __rpc_sockinfo *sip)
 482 {
 483         socklen_t len;
 484         int type, proto;
 485         struct sockaddr_storage ss;
 486
 487 #ifdef _WIN32
 488         WSAPROTOCOL_INFO proto_info;
 489         int proto_info_size = sizeof(proto_info);
 490         if (getsockopt(fd, SOL_SOCKET, SO_PROTOCOL_INFO, (char *)&proto_info, &proto_info_size) == SOCKET_ERROR) {
 491                 int err = WSAGetLastError();
 492                 return 0;
 493         }
 494         len = proto_info.iMaxSockAddr;
 495         ss.ss_family = (ADDRESS_FAMILY)proto_info.iAddressFamily;
 496 #else
 497         len = sizeof ss;
 498         if (getsockname(fd, (struct sockaddr *)&ss, &len) == SOCKET_ERROR) {
 499                 return 0;
 500         }
 501 #endif
 502         sip->si_alen = len;
 503
 504         len = sizeof type;
 505         if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&type, &len) == SOCKET_ERROR) {
 506                 int err = WSAGetLastError();
 507                 return 0;
 508         }
 509
 510         /* XXX */
 511 #ifdef AF_LOCAL
 512         if (ss.ss_family != AF_LOCAL) {
 513 #endif
 514                 if (type == SOCK_STREAM)
 515                         proto = IPPROTO_TCP;
 516                 else if (type == SOCK_DGRAM)
 517                         proto = IPPROTO_UDP;
 518                 else
 519                         return 0;
 520 #ifdef AF_LOCAL
 521         } else
 522                 proto = 0;
 523 #endif
 524
 525         sip->si_af = ss.ss_family;
 526         sip->si_proto = proto;
 527         sip->si_socktype = type;
 528
 529         return 1;
 530 }
 531
 532 /*
 533  * Linear search, but the number of entries is small.
 534  */
 535 int
 536 __rpc_nconf2sockinfo(const struct netconfig *nconf, struct __rpc_sockinfo *sip)
 537 {
 538         int i;
 539
 540         for (i = 0; i < (sizeof na_cvt) / (sizeof (struct netid_af)); i++)
 541                 if (strcmp(na_cvt[i].netid, nconf->nc_netid) == 0 || (
 542                     strcmp(nconf->nc_netid, "unix") == 0 &&
 543                     strcmp(na_cvt[i].netid, "local") == 0)) {
 544                         sip->si_af = na_cvt[i].af;
 545                         sip->si_proto = na_cvt[i].protocol;
 546                         sip->si_socktype =
 547                             __rpc_seman2socktype((int)nconf->nc_semantics);
 548                         if (sip->si_socktype == -1)
 549                                 return 0;
 550                         sip->si_alen = __rpc_get_a_size(sip->si_af);
 551                         return 1;
 552                 }
 553
 554         return 0;
 555 }
 556
 557 SOCKET
 558 __rpc_nconf2fd(const struct netconfig *nconf)
 559 {
 560         struct __rpc_sockinfo si;
 561         SOCKET fd;
 562
 563         if (!__rpc_nconf2sockinfo(nconf, &si))
 564                 return 0;
 565
 566         if ((fd = socket(si.si_af, si.si_socktype, si.si_proto)) != INVALID_SOCKET &&
 567             si.si_af == AF_INET6) {
 568                 int val = 1;
 569
 570                 setsockopt(fd, SOL_IPV6, IPV6_V6ONLY, (const char *)&val, sizeof(val));
 571         }
 572         return fd;
 573 }
 574
 575 int
 576 __rpc_sockinfo2netid(struct __rpc_sockinfo *sip, const char **netid)
 577 {
 578         int i;
 579         struct netconfig *nconf;
 580
 581         nconf = getnetconfigent("local");
 582
 583         for (i = 0; i < (sizeof na_cvt) / (sizeof (struct netid_af)); i++) {
 584                 if (na_cvt[i].af == sip->si_af &&
 585                     na_cvt[i].protocol == sip->si_proto) {
 586                         if (strcmp(na_cvt[i].netid, "local") == 0 && nconf == NULL) {
 587                                 if (netid)
 588                                         *netid = "unix";
 589                         } else {
 590                                 if (netid)
 591                                         *netid = na_cvt[i].netid;
 592                         }
 593                         if (nconf != NULL)
 594                                 freenetconfigent(nconf);
 595                         return 1;
 596                 }
 597         }
 598         if (nconf != NULL)
 599                 freenetconfigent(nconf);
 600
 601         return 0;
 602 }
 603
 604 char *
 605 taddr2uaddr(const struct netconfig *nconf, const struct netbuf *nbuf)
 606 {
 607         struct __rpc_sockinfo si;
 608
 609         if (!__rpc_nconf2sockinfo(nconf, &si))
 610                 return NULL;
 611         return __rpc_taddr2uaddr_af(si.si_af, nbuf);
 612 }
 613
 614 struct netbuf *
 615 uaddr2taddr(const struct netconfig *nconf, const char *uaddr)
 616 {
 617         struct __rpc_sockinfo si;
 618
 619         if (!__rpc_nconf2sockinfo(nconf, &si))
 620                 return NULL;
 621         return __rpc_uaddr2taddr_af(si.si_af, uaddr);
 622 }
 623
 624 void freeuaddr(char *uaddr)
 625 {
 626         free(uaddr);
 627 }
 628
 629 void freenetbuf(struct netbuf *nbuf)
 630 {
 631         if (nbuf) {
 632                 free(nbuf->buf);
 633                 free(nbuf);
 634         }
 635 }
 636
 637 #ifdef __REACTOS__
 638 PCSTR
 639 WSAAPI
 640 inet_ntop(INT af, PVOID src, PSTR dst, size_t cnt)
 641 {
 642         struct in_addr in;
 643         char *text_addr;
 644
 645         if (af == AF_INET) {
 646                 memcpy(&in.s_addr, src, sizeof(in.s_addr));
 647                 text_addr = inet_ntoa(in);
 648                 if (text_addr && dst) {
 649                         strncpy(dst, text_addr, cnt);
 650                         return dst;
 651                 }
 652         }
 653
 654         return 0;
 655 }
 656 #endif
 657
 658 char *
 659 __rpc_taddr2uaddr_af(int af, const struct netbuf *nbuf)
 660 {
 661         char *ret;
 662         struct sockaddr_in *sin;
 663 #ifdef AF_LOCAL
 664         struct sockaddr_un *sun;
 665 #endif
 666         char namebuf[INET_ADDRSTRLEN];
 667 #ifdef INET6
 668         struct sockaddr_in6 *sin6;
 669         char namebuf6[INET6_ADDRSTRLEN];
 670 #endif
 671         u_int16_t port;
 672
 673         if (nbuf->len <= 0)
 674                 return NULL;
 675
 676         switch (af) {
 677         case AF_INET:
 678                 sin = nbuf->buf;
 679                 if (inet_ntop(af, &sin->sin_addr, namebuf, sizeof namebuf)
 680                     == NULL)
 681                         return NULL;
 682                 port = ntohs(sin->sin_port);
 683                 if (asprintf(&ret, "%s.%u.%u", namebuf, ((u_int32_t)port) >> 8,
 684                     port & 0xff) < 0)
 685                         return NULL;
 686                 break;
 687 #ifdef INET6
 688         case AF_INET6:
 689                 sin6 = nbuf->buf;
 690                 if (inet_ntop(af, &sin6->sin6_addr, namebuf6, sizeof namebuf6)
 691                     == NULL)
 692                         return NULL;
 693                 port = ntohs(sin6->sin6_port);
 694                 if (asprintf(&ret, "%s.%u.%u", namebuf6, ((u_int32_t)port) >> 8,
 695                     port & 0xff) < 0)
 696                         return NULL;
 697                 break;
 698 #endif
 699 #ifdef AF_LOCAL
 700         case AF_LOCAL:
 701                 sun = nbuf->buf;
 702                 /*      if (asprintf(&ret, "%.*s", (int)(sun->sun_len -
 703                     offsetof(struct sockaddr_un, sun_path)),
 704                     sun->sun_path) < 0)*/
 705                 if (asprintf(&ret, "%.*s", (int)(sizeof(*sun) -
 706                                                  offsetof(struct sockaddr_un, sun_path)),
 707                              sun->sun_path) < 0)
 708
 709                         return (NULL);
 710                 break;
 711 #endif
 712         default:
 713                 return NULL;
 714         }
 715
 716         return ret;
 717 }
 718
 719 struct netbuf *
 720 __rpc_uaddr2taddr_af(int af, const char *uaddr)
 721 {
 722         struct netbuf *ret = NULL;
 723         char *addrstr, *p;
 724         unsigned short port, portlo, porthi;
 725         struct sockaddr_in *sin;
 726 #ifdef INET6
 727         struct sockaddr_in6 *sin6;
 728 #endif
 729 #ifdef AF_LOCAL
 730         struct sockaddr_un *sun;
 731 #endif
 732
 733         port = 0;
 734         sin = NULL;
 735         addrstr = strdup(uaddr);
 736         if (addrstr == NULL)
 737                 return NULL;
 738
 739         /*
 740          * AF_LOCAL addresses are expected to be absolute
 741          * pathnames, anything else will be AF_INET or AF_INET6.
 742          */
 743         if (*addrstr != '/') {
 744                 p = strrchr(addrstr, '.');
 745                 if (p == NULL)
 746                         goto out;
 747                 portlo = (unsigned)atoi(p + 1);
 748                 *p = '\0';
 749
 750                 p = strrchr(addrstr, '.');
 751                 if (p == NULL)
 752                         goto out;
 753                 porthi = (unsigned)atoi(p + 1);
 754                 *p = '\0';
 755                 port = (porthi << 8) | portlo;
 756         }
 757
 758         ret = (struct netbuf *)malloc(sizeof *ret);
 759         if (ret == NULL)
 760                 goto out;
 761
 762         switch (af) {
 763         case AF_INET:
 764                 sin = (struct sockaddr_in *)malloc(sizeof *sin);
 765                 if (sin == NULL)
 766                         goto out;
 767                 memset(sin, 0, sizeof *sin);
 768                 sin->sin_family = AF_INET;
 769                 sin->sin_port = htons(port);
 770 #ifndef __REACTOS__
 771                 if (inet_pton(AF_INET, addrstr, &sin->sin_addr) <= 0) {
 772 #else
 773                 sin->sin_addr.S_un.S_addr = inet_addr(addrstr);
 774                 if (sin->sin_addr.S_un.S_addr == INADDR_NONE) {
 775 #endif
 776                         free(sin);
 777                         free(ret);
 778                         ret = NULL;
 779                         goto out;
 780                 }
 781                 ret->maxlen = ret->len = sizeof *sin;
 782                 ret->buf = sin;
 783                 break;
 784 #ifdef INET6
 785         case AF_INET6:
 786                 sin6 = (struct sockaddr_in6 *)malloc(sizeof *sin6);
 787                 if (sin6 == NULL)
 788                         goto out;
 789                 memset(sin6, 0, sizeof *sin6);
 790                 sin6->sin6_family = AF_INET6;
 791                 sin6->sin6_port = htons(port);
 792                 if (inet_pton(AF_INET6, addrstr, &sin6->sin6_addr) <= 0) {
 793                         free(sin6);
 794                         free(ret);
 795                         ret = NULL;
 796                         goto out;
 797                 }
 798                 ret->maxlen = ret->len = sizeof *sin6;
 799                 ret->buf = sin6;
 800                 break;
 801 #endif
 802 #ifdef AF_LOCAL
 803         case AF_LOCAL:
 804                 sun = (struct sockaddr_un *)malloc(sizeof *sun);
 805                 if (sun == NULL)
 806                         goto out;
 807                 memset(sun, 0, sizeof *sun);
 808                 sun->sun_family = AF_LOCAL;
 809                 strncpy(sun->sun_path, addrstr, sizeof(sun->sun_path) - 1);
 810                 ret->len = SUN_LEN(sun);
 811                 ret->maxlen = sizeof(struct sockaddr_un);
 812                 ret->buf = sun;
 813                 break;
 814 #endif
 815         default:
 816                 break;
 817         }
 818 out:
 819         free(addrstr);
 820         return ret;
 821 }
 822
 823 int
 824 __rpc_seman2socktype(int semantics)
 825 {
 826         switch (semantics) {
 827         case NC_TPI_CLTS:
 828                 return SOCK_DGRAM;
 829         case NC_TPI_COTS_ORD:
 830                 return SOCK_STREAM;
 831         case NC_TPI_RAW:
 832                 return SOCK_RAW;
 833         default:
 834                 break;
 835         }
 836
 837         return -1;
 838 }
 839
 840 int
 841 __rpc_socktype2seman(int socktype)
 842 {
 843         switch (socktype) {
 844         case SOCK_DGRAM:
 845                 return NC_TPI_CLTS;
 846         case SOCK_STREAM:
 847                 return NC_TPI_COTS_ORD;
 848         case SOCK_RAW:
 849                 return NC_TPI_RAW;
 850         default:
 851                 break;
 852         }
 853
 854         return -1;
 855 }
 856
 857 /*
 858  * XXXX - IPv6 scope IDs can't be handled in universal addresses.
 859  * Here, we compare the original server address to that of the RPC
 860  * service we just received back from a call to rpcbind on the remote
 861  * machine. If they are both "link local" or "site local", copy
 862  * the scope id of the server address over to the service address.
 863  */
 864 int
 865 __rpc_fixup_addr(struct netbuf *new, const struct netbuf *svc)
 866 {
 867 #ifdef INET6
 868         struct sockaddr *sa_new, *sa_svc;
 869         struct sockaddr_in6 *sin6_new, *sin6_svc;
 870
 871         sa_svc = (struct sockaddr *)svc->buf;
 872         sa_new = (struct sockaddr *)new->buf;
 873
 874         if (sa_new->sa_family == sa_svc->sa_family &&
 875             sa_new->sa_family == AF_INET6) {
 876                 sin6_new = (struct sockaddr_in6 *)new->buf;
 877                 sin6_svc = (struct sockaddr_in6 *)svc->buf;
 878
 879                 if ((IN6_IS_ADDR_LINKLOCAL(&sin6_new->sin6_addr) &&
 880                      IN6_IS_ADDR_LINKLOCAL(&sin6_svc->sin6_addr)) ||
 881                     (IN6_IS_ADDR_SITELOCAL(&sin6_new->sin6_addr) &&
 882                      IN6_IS_ADDR_SITELOCAL(&sin6_svc->sin6_addr))) {
 883                         sin6_new->sin6_scope_id = sin6_svc->sin6_scope_id;
 884                 }
 885         }
 886 #endif
 887         return 1;
 888 }
 889
 890 int
 891 __rpc_sockisbound(SOCKET fd)
 892 {
 893         struct sockaddr_storage ss;
 894         union {
 895                 struct sockaddr_in  sin;
 896                 struct sockaddr_in6 sin6;
 897 #ifdef AF_LOCAL
 898                 struct sockaddr_un  usin;
 899 #endif
 900         } u_addr;
 901         socklen_t slen;
 902
 903         slen = sizeof (struct sockaddr_storage);
 904         if (getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) == SOCKET_ERROR)
 905                 return 0;
 906
 907         switch (ss.ss_family) {
 908                 case AF_INET:
 909                         memcpy(&u_addr.sin, &ss, sizeof(u_addr.sin));
 910                         return (u_addr.sin.sin_port != 0);
 911 #ifdef INET6
 912                 case AF_INET6:
 913                         memcpy(&u_addr.sin6, &ss, sizeof(u_addr.sin6));
 914                         return (u_addr.sin6.sin6_port != 0);
 915 #endif
 916 #ifdef AF_LOCAL
 917                 case AF_LOCAL:
 918                         /* XXX check this */
 919                         memcpy(&u_addr.usin, &ss, sizeof(u_addr.usin));
 920                         return (u_addr.usin.sun_path[0] != 0);
 921 #endif
 922                 default:
 923                         break;
 924         }
 925
 926         return 0;
 927 }
 928
 929 /*
 930  * Helper function to set up a netbuf
 931  */
 932 struct netbuf *
 933 __rpc_set_netbuf(struct netbuf *nb, const void *ptr, size_t len)
 934 {
 935         if (nb->len != len) {
 936                 if (nb->len)
 937                         mem_free(nb->buf, nb->len);
 938                 nb->buf = mem_alloc(len);
 939                 if (nb->buf == NULL)
 940                         return NULL;
 941
 942                 nb->maxlen = nb->len = len;
 943         }
 944         memcpy(nb->buf, ptr, len);
 945         return nb;
 946 }