SystemConfiguration.fproj/SCDPrivate.c

   1 /*
   2  * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * Modification History
  26  *
  27  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  28  * - public API conversion
  29  *
  30  * November 9, 2000             Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 //#define DO_NOT_CRASH
  35 //#define DO_NOT_INFORM
  36
  37 #include <SystemConfiguration/SystemConfiguration.h>
  38 #include <SystemConfiguration/SCValidation.h>
  39 #include <SystemConfiguration/SCPrivate.h>
  40
  41 #include <sys/param.h>
  42 #include <sys/types.h>
  43 #include <sys/socket.h>
  44 #include <sys/ioctl.h>
  45 #include <net/if.h>
  46 #include <net/if_dl.h>
  47 #include <netinet/in.h>
  48 #include <arpa/inet.h>
  49
  50 #include <dispatch/dispatch.h>
  51
  52 #include <mach/mach.h>
  53 #include <mach/notify.h>
  54 #include <mach/mach_error.h>
  55 #include <pthread.h>
  56
  57 #include <execinfo.h>
  58 #include <unistd.h>
  59 #include <dlfcn.h>
  60
  61
  62 #if     TARGET_OS_EMBEDDED && !defined(DO_NOT_INFORM)
  63 #include <CoreFoundation/CFUserNotification.h>
  64 #endif  // TARGET_OS_EMBEDDED && !defined(DO_NOT_INFORM)
  65
  66 #define N_QUICK 32
  67
  68
  69 #pragma mark -
  70 #pragma mark Miscellaneous
  71
  72
  73 char *
  74 _SC_cfstring_to_cstring(CFStringRef cfstr, char *buf, CFIndex bufLen, CFStringEncoding encoding)
  75 {
  76         CFIndex converted;
  77         CFIndex last    = 0;
  78         CFIndex len;
  79
  80         if (cfstr == NULL) {
  81                 cfstr = CFSTR("");
  82         }
  83         len = CFStringGetLength(cfstr);
  84
  85         /* how much buffer space will we really need? */
  86         converted = CFStringGetBytes(cfstr,
  87                                      CFRangeMake(0, len),
  88                                      encoding,
  89                                      0,
  90                                      FALSE,
  91                                      NULL,
  92                                      0,
  93                                      &last);
  94         if (converted < len) {
  95                 /* if full string could not be converted */
  96                 if (buf != NULL) {
  97                         buf[0] = '\0';
  98                 }
  99                 return NULL;
 100         }
 101
 102         if (buf != NULL) {
 103                 if (bufLen < (last + 1)) {
 104                         /* if the size of the provided buffer is too small */
 105                         buf[0] = '\0';
 106                         return NULL;
 107                 }
 108         } else {
 109                 /* allocate a buffer */
 110                 bufLen = last + 1;
 111                 buf = CFAllocatorAllocate(NULL, bufLen, 0);
 112                 if (buf == NULL) {
 113                         return NULL;
 114                 }
 115         }
 116
 117         (void)CFStringGetBytes(cfstr,
 118                                CFRangeMake(0, len),
 119                                encoding,
 120                                0,
 121                                FALSE,
 122                                (UInt8 *)buf,
 123                                bufLen,
 124                                &last);
 125         buf[last] = '\0';
 126
 127         return buf;
 128 }
 129
 130
 131 void
 132 _SC_sockaddr_to_string(const struct sockaddr *address, char *buf, size_t bufLen)
 133 {
 134         union {
 135                 const struct sockaddr           *sa;
 136                 const struct sockaddr_in        *sin;
 137                 const struct sockaddr_in6       *sin6;
 138                 const struct sockaddr_dl        *sdl;
 139         } addr;
 140
 141         addr.sa = address;
 142
 143         bzero(buf, bufLen);
 144         switch (address->sa_family) {
 145                 case AF_INET :
 146                         (void)inet_ntop(addr.sin->sin_family,
 147                                         &addr.sin->sin_addr,
 148                                         buf,
 149                                         (socklen_t)bufLen);
 150                         break;
 151                 case AF_INET6 : {
 152                         (void)inet_ntop(addr.sin6->sin6_family,
 153                                         &addr.sin6->sin6_addr,
 154                                         buf,
 155                                         (socklen_t)bufLen);
 156                         if (addr.sin6->sin6_scope_id != 0) {
 157                                 size_t  n;
 158
 159                                 n = strlen(buf);
 160                                 if ((n+IF_NAMESIZE+1) <= (int)bufLen) {
 161                                         buf[n++] = '%';
 162                                         if_indextoname(addr.sin6->sin6_scope_id, &buf[n]);
 163                                 }
 164                         }
 165                         break;
 166                 }
 167                 default :
 168                         snprintf(buf, bufLen, "unexpected address family %d", address->sa_family);
 169                         break;
 170         }
 171
 172         return;
 173 }
 174
 175
 176 struct sockaddr *
 177 _SC_string_to_sockaddr(const char *str, sa_family_t af, void *buf, size_t bufLen)
 178 {
 179         union {
 180                 void                    *buf;
 181                 struct sockaddr         *sa;
 182                 struct sockaddr_in      *sin;
 183                 struct sockaddr_in6     *sin6;
 184         } addr;
 185
 186         if (buf == NULL) {
 187                 bufLen = sizeof(struct sockaddr_storage);
 188                 addr.buf = CFAllocatorAllocate(NULL, bufLen, 0);
 189         } else {
 190                 addr.buf = buf;
 191         }
 192
 193         bzero(addr.buf, bufLen);
 194         if (((af == AF_UNSPEC) || (af == AF_INET)) &&
 195             (bufLen >= sizeof(struct sockaddr_in)) &&
 196             inet_aton(str, &addr.sin->sin_addr) == 1) {
 197                 // if IPv4 address
 198                 addr.sin->sin_len    = sizeof(struct sockaddr_in);
 199                 addr.sin->sin_family = AF_INET;
 200         } else if (((af == AF_UNSPEC) || (af == AF_INET6)) &&
 201                    (bufLen >= sizeof(struct sockaddr_in6)) &&
 202                    inet_pton(AF_INET6, str, &addr.sin6->sin6_addr) == 1) {
 203                 // if IPv6 address
 204                 char    *p;
 205
 206                 addr.sin6->sin6_len    = sizeof(struct sockaddr_in6);
 207                 addr.sin6->sin6_family = AF_INET6;
 208
 209                 p = strchr(buf, '%');
 210                 if (p != NULL) {
 211                         addr.sin6->sin6_scope_id = if_nametoindex(p + 1);
 212                 }
 213
 214                 if (IN6_IS_ADDR_LINKLOCAL(&addr.sin6->sin6_addr) ||
 215                     IN6_IS_ADDR_MC_LINKLOCAL(&addr.sin6->sin6_addr)) {
 216                         uint16_t        if_index;
 217
 218                         if_index = ntohs(addr.sin6->sin6_addr.__u6_addr.__u6_addr16[1]);
 219                         addr.sin6->sin6_addr.__u6_addr.__u6_addr16[1] = 0;
 220                         if (addr.sin6->sin6_scope_id == 0) {
 221                                 // use the scope id that was embedded in the [link local] IPv6 address
 222                                 addr.sin6->sin6_scope_id = if_index;
 223                         }
 224                 }
 225         } else {
 226                 if (addr.buf != buf) {
 227                         CFAllocatorDeallocate(NULL, addr.buf);
 228                 }
 229                 addr.buf = NULL;
 230         }
 231
 232         return addr.sa;
 233 }
 234
 235
 236 void
 237 _SC_sendMachMessage(mach_port_t port, mach_msg_id_t msg_id)
 238 {
 239         mach_msg_empty_send_t   msg;
 240         mach_msg_option_t       options;
 241         kern_return_t           status;
 242
 243         msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0);
 244         msg.header.msgh_size = sizeof(msg);
 245         msg.header.msgh_remote_port = port;
 246         msg.header.msgh_local_port = MACH_PORT_NULL;
 247         msg.header.msgh_id = msg_id;
 248         options = MACH_SEND_TIMEOUT;
 249         status = mach_msg(&msg.header,                  /* msg */
 250                           MACH_SEND_MSG|options,        /* options */
 251                           msg.header.msgh_size,         /* send_size */
 252                           0,                            /* rcv_size */
 253                           MACH_PORT_NULL,               /* rcv_name */
 254                           0,                            /* timeout */
 255                           MACH_PORT_NULL);              /* notify */
 256         if (status != MACH_MSG_SUCCESS) {
 257                 mach_msg_destroy(&msg.header);
 258         }
 259
 260         return;
 261 }
 262
 263
 264 CFStringRef
 265 _SC_trimDomain(CFStringRef domain)
 266 {
 267         CFIndex length;
 268
 269         if (!isA_CFString(domain)) {
 270                 return NULL;
 271         }
 272
 273         // remove any leading/trailing dots
 274         length = CFStringGetLength(domain);
 275         if ((length > 0) &&
 276             (CFStringFindWithOptions(domain,
 277                                      CFSTR("."),
 278                                      CFRangeMake(0, 1),
 279                                      kCFCompareAnchored,
 280                                      NULL) ||
 281              CFStringFindWithOptions(domain,
 282                                      CFSTR("."),
 283                                      CFRangeMake(0, length),
 284                                      kCFCompareAnchored|kCFCompareBackwards,
 285                                      NULL))) {
 286                      CFMutableStringRef trimmed;
 287
 288                      trimmed = CFStringCreateMutableCopy(NULL, 0, domain);
 289                      CFStringTrim(trimmed, CFSTR("."));
 290                      domain = (CFStringRef)trimmed;
 291                      length = CFStringGetLength(domain);
 292              } else {
 293                      CFRetain(domain);
 294              }
 295
 296         if (length == 0) {
 297                 CFRelease(domain);
 298                 domain = NULL;
 299         }
 300
 301         return domain;
 302 }
 303
 304
 305 CFStringRef
 306 _SC_hw_model(Boolean trim)
 307 {
 308         static CFStringRef      model           = NULL;
 309         static CFStringRef      model_trimmed   = NULL;
 310         static dispatch_once_t  once;
 311
 312         dispatch_once(&once, ^{
 313                 char    *cp;
 314                 char    hwModel[64];
 315                 int     mib[]           = { CTL_HW, HW_MODEL };
 316                 size_t  n               = sizeof(hwModel);
 317                 int     ret;
 318
 319                 // get HW model name
 320                 bzero(&hwModel, sizeof(hwModel));
 321                 ret = sysctl(mib, sizeof(mib) / sizeof(mib[0]), &hwModel, &n, NULL, 0);
 322                 if (ret != 0) {
 323                         SCLog(TRUE, LOG_ERR, CFSTR("sysctl() CTL_HW/HW_MODEL failed: %s"), strerror(errno));
 324                         return;
 325                 }
 326                 hwModel[sizeof(hwModel) - 1] = '\0';
 327                 model = CFStringCreateWithCString(NULL, hwModel, kCFStringEncodingASCII);
 328
 329                 // and the "trimmed" name
 330                 // ... remove everything after (and including) a comma
 331                 // ... and then any trailing digits
 332                 cp = index(hwModel, ',');
 333                 if (cp != NULL) {
 334                         *cp = '\0';
 335                 }
 336                 n = strlen(hwModel) - 1;
 337                 while (n > 0) {
 338                         if (!isdigit(hwModel[n])) {
 339                                 break;
 340                         }
 341                         hwModel[n--] = '\0';
 342                 }
 343                 model_trimmed = CFStringCreateWithCString(NULL, hwModel, kCFStringEncodingASCII);
 344         });
 345
 346         return trim ? model_trimmed : model;
 347 }
 348
 349
 350 #pragma mark -
 351 #pragma mark Serialization
 352
 353
 354 Boolean
 355 _SCSerialize(CFPropertyListRef obj, CFDataRef *xml, void **dataRef, CFIndex *dataLen)
 356 {
 357         CFDataRef               myXml;
 358
 359         if ((xml == NULL) && ((dataRef == NULL) || (dataLen == NULL))) {
 360                 /* if not keeping track of allocated space */
 361                 return FALSE;
 362         }
 363
 364         myXml = CFPropertyListCreateData(NULL,
 365                                          obj,
 366                                          kCFPropertyListBinaryFormat_v1_0,
 367                                          0,
 368                                          NULL);
 369         if (myXml == NULL) {
 370                 SCLog(TRUE, LOG_ERR, CFSTR("_SCSerialize() failed"));
 371                 if (xml != NULL) {
 372                         *xml = NULL;
 373                 }
 374                 if ((dataRef != NULL) && (dataLen != NULL)) {
 375                         *dataLen = 0;
 376                         *dataRef = NULL;
 377                 }
 378                 return FALSE;
 379         }
 380
 381         if (xml != NULL) {
 382                 *xml = myXml;
 383                 if ((dataRef != NULL) && (dataLen != NULL)) {
 384                         *dataRef = (void *)CFDataGetBytePtr(myXml);
 385                         *dataLen = CFDataGetLength(myXml);
 386                 }
 387         } else {
 388                 mach_msg_type_number_t  len;
 389                 kern_return_t           status;
 390
 391                 status = vm_read(mach_task_self(),
 392                                  (vm_address_t)CFDataGetBytePtr(myXml), // address
 393                                  (vm_size_t)   CFDataGetLength(myXml),  // size
 394                                  (void *)dataRef,
 395                                  &len);
 396                 if (status != KERN_SUCCESS) {
 397                         SCLog(TRUE, LOG_ERR, CFSTR("_SCSerialize(): %s"), mach_error_string(status));
 398                         CFRelease(myXml);
 399                         *dataRef = NULL;
 400                         *dataLen = 0;
 401                         return FALSE;
 402                 }
 403
 404                 *dataLen = len;
 405                 CFRelease(myXml);
 406         }
 407
 408         return TRUE;
 409 }
 410
 411
 412 Boolean
 413 _SCUnserialize(CFPropertyListRef *obj, CFDataRef xml, void *dataRef, CFIndex dataLen)
 414 {
 415         CFErrorRef      error   = NULL;
 416
 417         if (xml == NULL) {
 418                 kern_return_t   status;
 419
 420                 xml = CFDataCreateWithBytesNoCopy(NULL, (void *)dataRef, dataLen, kCFAllocatorNull);
 421                 *obj = CFPropertyListCreateWithData(NULL, xml, kCFPropertyListImmutable, NULL, &error);
 422                 CFRelease(xml);
 423
 424                 status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
 425                 if (status != KERN_SUCCESS) {
 426                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserialize(): %s"), mach_error_string(status));
 427                         /* non-fatal???, proceed */
 428                 }
 429         } else {
 430                 *obj = CFPropertyListCreateWithData(NULL, xml, kCFPropertyListImmutable, NULL, &error);
 431         }
 432
 433         if (*obj == NULL) {
 434                 if (error != NULL) {
 435                         SCLog(TRUE, LOG_ERR, CFSTR("_SCUnserialize(): %@"), error);
 436                         CFRelease(error);
 437                 }
 438                 _SCErrorSet(kSCStatusFailed);
 439                 return FALSE;
 440         }
 441
 442         return TRUE;
 443 }
 444
 445
 446 Boolean
 447 _SCSerializeString(CFStringRef str, CFDataRef *data, void **dataRef, CFIndex *dataLen)
 448 {
 449         CFDataRef       myData;
 450
 451         if (!isA_CFString(str)) {
 452                 /* if not a CFString */
 453                 return FALSE;
 454         }
 455
 456         if ((data == NULL) && ((dataRef == NULL) || (dataLen == NULL))) {
 457                 /* if not keeping track of allocated space */
 458                 return FALSE;
 459         }
 460
 461         myData = CFStringCreateExternalRepresentation(NULL, str, kCFStringEncodingUTF8, 0);
 462         if (myData == NULL) {
 463                 SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeString() failed"));
 464                 if (data != NULL) {
 465                         *data = NULL;
 466                 }
 467                 if ((dataRef != NULL) && (dataLen != NULL)) {
 468                         *dataRef = NULL;
 469                         *dataLen = 0;
 470                 }
 471                 return FALSE;
 472         }
 473
 474         if (data != NULL) {
 475                 *data = myData;
 476                 if ((dataRef != NULL) && (dataLen != NULL)) {
 477                         *dataRef = (void *)CFDataGetBytePtr(myData);
 478                         *dataLen = CFDataGetLength(myData);
 479                 }
 480         } else {
 481                 mach_msg_type_number_t  len;
 482                 kern_return_t           status;
 483
 484                 *dataLen = CFDataGetLength(myData);
 485                 status = vm_read(mach_task_self(),
 486                                  (vm_address_t)CFDataGetBytePtr(myData),        // address
 487                                  *dataLen,                                      // size
 488                                  (void *)dataRef,
 489                                  &len);
 490                 if (status != KERN_SUCCESS) {
 491                         SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeString(): %s"), mach_error_string(status));
 492                         CFRelease(myData);
 493                         *dataRef = NULL;
 494                         *dataLen = 0;
 495                         return FALSE;
 496                 }
 497
 498                 *dataLen = len;
 499                 CFRelease(myData);
 500         }
 501
 502         return TRUE;
 503 }
 504
 505
 506 Boolean
 507 _SCUnserializeString(CFStringRef *str, CFDataRef utf8, void *dataRef, CFIndex dataLen)
 508 {
 509         if (utf8 == NULL) {
 510                 kern_return_t   status;
 511
 512                 utf8 = CFDataCreateWithBytesNoCopy(NULL, dataRef, dataLen, kCFAllocatorNull);
 513                 *str = CFStringCreateFromExternalRepresentation(NULL, utf8, kCFStringEncodingUTF8);
 514                 CFRelease(utf8);
 515
 516                 status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
 517                 if (status != KERN_SUCCESS) {
 518                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserializeString(): %s"), mach_error_string(status));
 519                         /* non-fatal???, proceed */
 520                 }
 521         } else {
 522                 *str = CFStringCreateFromExternalRepresentation(NULL, utf8, kCFStringEncodingUTF8);
 523         }
 524
 525         if (*str == NULL) {
 526                 SCLog(TRUE, LOG_ERR, CFSTR("_SCUnserializeString() failed"));
 527                 return FALSE;
 528         }
 529
 530         return TRUE;
 531 }
 532
 533
 534 Boolean
 535 _SCSerializeData(CFDataRef data, void **dataRef, CFIndex *dataLen)
 536 {
 537         mach_msg_type_number_t  len;
 538         kern_return_t           status;
 539
 540         if (!isA_CFData(data)) {
 541                 /* if not a CFData */
 542                 return FALSE;
 543         }
 544
 545         *dataLen = CFDataGetLength(data);
 546         status = vm_read(mach_task_self(),
 547                          (vm_address_t)CFDataGetBytePtr(data),  // address
 548                          *dataLen,                              // size
 549                          (void *)dataRef,
 550                          &len);
 551         if (status != KERN_SUCCESS) {
 552                 SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeData(): %s"), mach_error_string(status));
 553                 *dataRef = NULL;
 554                 *dataLen = 0;
 555                 return FALSE;
 556         }
 557
 558         *dataLen = len;
 559
 560         return TRUE;
 561 }
 562
 563
 564 Boolean
 565 _SCUnserializeData(CFDataRef *data, void *dataRef, CFIndex dataLen)
 566 {
 567         kern_return_t           status;
 568
 569         *data = CFDataCreate(NULL, dataRef, dataLen);
 570         status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
 571         if (status != KERN_SUCCESS) {
 572                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserializeData(): %s"), mach_error_string(status));
 573                 _SCErrorSet(kSCStatusFailed);
 574                 return FALSE;
 575         }
 576
 577         return TRUE;
 578 }
 579
 580
 581 CF_RETURNS_RETAINED CFDictionaryRef
 582 _SCSerializeMultiple(CFDictionaryRef dict)
 583 {
 584         CFIndex                 i;
 585         const void *            keys_q[N_QUICK];
 586         const void **           keys            = keys_q;
 587         CFIndex                 nElements;
 588         CFDictionaryRef         newDict         = NULL;
 589         const void *            pLists_q[N_QUICK];
 590         const void **           pLists          = pLists_q;
 591         const void *            values_q[N_QUICK];
 592         const void **           values          = values_q;
 593
 594         nElements = CFDictionaryGetCount(dict);
 595         if (nElements > 0) {
 596                 if (nElements > (CFIndex)(sizeof(keys_q) / sizeof(CFTypeRef))) {
 597                         keys   = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
 598                         values = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
 599                         pLists = CFAllocatorAllocate(NULL, nElements * sizeof(CFDataRef), 0);
 600                 }
 601                 bzero(pLists, nElements * sizeof(CFDataRef));
 602
 603                 CFDictionaryGetKeysAndValues(dict, keys, values);
 604                 for (i = 0; i < nElements; i++) {
 605                         pLists[i] = NULL;
 606                         if (!_SCSerialize((CFPropertyListRef)values[i], (CFDataRef *)&pLists[i], NULL, NULL)) {
 607                                 goto done;
 608                         }
 609                 }
 610         }
 611
 612         newDict = CFDictionaryCreate(NULL,
 613                                      keys,
 614                                      pLists,
 615                                      nElements,
 616                                      &kCFTypeDictionaryKeyCallBacks,
 617                                      &kCFTypeDictionaryValueCallBacks);
 618
 619     done :
 620
 621         if (nElements > 0) {
 622                 for (i = 0; i < nElements; i++) {
 623                         if (pLists[i] != NULL)  CFRelease((CFDataRef)pLists[i]);
 624                 }
 625
 626                 if (keys != keys_q) {
 627                         CFAllocatorDeallocate(NULL, keys);
 628                         CFAllocatorDeallocate(NULL, values);
 629                         CFAllocatorDeallocate(NULL, pLists);
 630                 }
 631         }
 632
 633         return newDict;
 634 }
 635
 636
 637 CF_RETURNS_RETAINED
 638 CFDictionaryRef
 639 _SCUnserializeMultiple(CFDictionaryRef dict)
 640 {
 641         const void *            keys_q[N_QUICK];
 642         const void **           keys            = keys_q;
 643         CFIndex                 nElements;
 644         CFDictionaryRef         newDict         = NULL;
 645         const void *            pLists_q[N_QUICK];
 646         const void **           pLists          = pLists_q;
 647         const void *            values_q[N_QUICK];
 648         const void **           values          = values_q;
 649
 650         nElements = CFDictionaryGetCount(dict);
 651         if (nElements > 0) {
 652                 CFIndex i;
 653
 654                 if (nElements > (CFIndex)(sizeof(keys_q) / sizeof(CFTypeRef))) {
 655                         keys   = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
 656                         values = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
 657                         pLists = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
 658                 }
 659                 bzero(pLists, nElements * sizeof(CFTypeRef));
 660
 661                 CFDictionaryGetKeysAndValues(dict, keys, values);
 662                 for (i = 0; i < nElements; i++) {
 663                         if (!_SCUnserialize((CFPropertyListRef *)&pLists[i], values[i], NULL, 0)) {
 664                                 goto done;
 665                         }
 666                 }
 667         }
 668
 669         newDict = CFDictionaryCreate(NULL,
 670                                      keys,
 671                                      pLists,
 672                                      nElements,
 673                                      &kCFTypeDictionaryKeyCallBacks,
 674                                      &kCFTypeDictionaryValueCallBacks);
 675
 676     done :
 677
 678         if (nElements > 0) {
 679                 CFIndex i;
 680
 681                 for (i = 0; i < nElements; i++) {
 682                         if (pLists[i])  CFRelease(pLists[i]);
 683                 }
 684
 685                 if (keys != keys_q) {
 686                         CFAllocatorDeallocate(NULL, keys);
 687                         CFAllocatorDeallocate(NULL, values);
 688                         CFAllocatorDeallocate(NULL, pLists);
 689                 }
 690         }
 691
 692         return newDict;
 693 }
 694
 695
 696 #pragma mark -
 697 #pragma mark CFRunLoop scheduling
 698
 699
 700 __private_extern__ void
 701 _SC_signalRunLoop(CFTypeRef obj, CFRunLoopSourceRef rls, CFArrayRef rlList)
 702 {
 703         CFRunLoopRef    rl      = NULL;
 704         CFRunLoopRef    rl1     = NULL;
 705         CFIndex         i;
 706         CFIndex         n       = CFArrayGetCount(rlList);
 707
 708         if (n == 0) {
 709                 return;
 710         }
 711
 712         /* get first runLoop for this object */
 713         for (i = 0; i < n; i += 3) {
 714                 if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
 715                         continue;
 716                 }
 717
 718                 rl1 = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
 719                 break;
 720         }
 721
 722         if (rl1 == NULL) {
 723                 /* if not scheduled */
 724                 return;
 725         }
 726
 727         /* check if we have another runLoop for this object */
 728         rl = rl1;
 729         for (i = i+3; i < n; i += 3) {
 730                 CFRunLoopRef    rl2;
 731
 732                 if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
 733                         continue;
 734                 }
 735
 736                 rl2 = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
 737                 if (!CFEqual(rl1, rl2)) {
 738                         /* we've got more than one runLoop */
 739                         rl = NULL;
 740                         break;
 741                 }
 742         }
 743
 744         if (rl != NULL) {
 745                 /* if we only have one runLoop */
 746                 CFRunLoopWakeUp(rl);
 747                 return;
 748         }
 749
 750         /* more than one different runLoop, so we must pick one */
 751         for (i = 0; i < n; i+=3) {
 752                 CFStringRef     rlMode;
 753
 754                 if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
 755                         continue;
 756                 }
 757
 758                 rl     = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
 759                 rlMode = CFRunLoopCopyCurrentMode(rl);
 760                 if (rlMode != NULL) {
 761                         Boolean waiting;
 762
 763                         waiting = (CFRunLoopIsWaiting(rl) && CFRunLoopContainsSource(rl, rls, rlMode));
 764                         CFRelease(rlMode);
 765                         if (waiting) {
 766                                 /* we've found a runLoop that's "ready" */
 767                                 CFRunLoopWakeUp(rl);
 768                                 return;
 769                         }
 770                 }
 771         }
 772
 773         /* didn't choose one above, so choose first */
 774         CFRunLoopWakeUp(rl1);
 775         return;
 776 }
 777
 778
 779 __private_extern__ Boolean
 780 _SC_isScheduled(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList)
 781 {
 782         CFIndex i;
 783         CFIndex n       = CFArrayGetCount(rlList);
 784
 785         for (i = 0; i < n; i += 3) {
 786                 if ((obj != NULL)         && !CFEqual(obj,         CFArrayGetValueAtIndex(rlList, i))) {
 787                         continue;
 788                 }
 789                 if ((runLoop != NULL)     && !CFEqual(runLoop,     CFArrayGetValueAtIndex(rlList, i+1))) {
 790                         continue;
 791                 }
 792                 if ((runLoopMode != NULL) && !CFEqual(runLoopMode, CFArrayGetValueAtIndex(rlList, i+2))) {
 793                         continue;
 794                 }
 795                 return TRUE;
 796         }
 797
 798         return FALSE;
 799 }
 800
 801
 802 __private_extern__ void
 803 _SC_schedule(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList)
 804 {
 805         CFArrayAppendValue(rlList, obj);
 806         CFArrayAppendValue(rlList, runLoop);
 807         CFArrayAppendValue(rlList, runLoopMode);
 808
 809         return;
 810 }
 811
 812
 813 __private_extern__ Boolean
 814 _SC_unschedule(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList, Boolean all)
 815 {
 816         CFIndex i       = 0;
 817         Boolean found   = FALSE;
 818         CFIndex n       = CFArrayGetCount(rlList);
 819
 820         while (i < n) {
 821                 if ((obj != NULL)         && !CFEqual(obj,         CFArrayGetValueAtIndex(rlList, i))) {
 822                         i += 3;
 823                         continue;
 824                 }
 825                 if ((runLoop != NULL)     && !CFEqual(runLoop,     CFArrayGetValueAtIndex(rlList, i+1))) {
 826                         i += 3;
 827                         continue;
 828                 }
 829                 if ((runLoopMode != NULL) && !CFEqual(runLoopMode, CFArrayGetValueAtIndex(rlList, i+2))) {
 830                         i += 3;
 831                         continue;
 832                 }
 833
 834                 found = TRUE;
 835
 836                 CFArrayRemoveValueAtIndex(rlList, i + 2);
 837                 CFArrayRemoveValueAtIndex(rlList, i + 1);
 838                 CFArrayRemoveValueAtIndex(rlList, i);
 839
 840                 if (!all) {
 841                         return found;
 842                 }
 843
 844                 n -= 3;
 845         }
 846
 847         return found;
 848 }
 849
 850
 851 #pragma mark -
 852 #pragma mark Bundle
 853
 854
 855 #define SYSTEMCONFIGURATION_BUNDLE_ID           CFSTR("com.apple.SystemConfiguration")
 856 #define SYSTEMCONFIGURATION_FRAMEWORK_PATH      "/System/Library/Frameworks/SystemConfiguration.framework"
 857 #define SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN  (sizeof(SYSTEMCONFIGURATION_FRAMEWORK_PATH) - 1)
 858
 859 #define SUFFIX_SYM                              "~sym"
 860 #define SUFFIX_SYM_LEN                          (sizeof(SUFFIX_SYM) - 1)
 861
 862 #define SUFFIX_DST                              "~dst"
 863
 864
 865 CFBundleRef
 866 _SC_CFBundleGet(void)
 867 {
 868         static CFBundleRef      bundle  = NULL;
 869         char                    *env;
 870         size_t                  len;
 871
 872         if (bundle != NULL) {
 873                 return bundle;
 874         }
 875
 876         bundle = CFBundleGetBundleWithIdentifier(SYSTEMCONFIGURATION_BUNDLE_ID);
 877         if (bundle != NULL) {
 878                 CFRetain(bundle);       // we want to hold a reference to the bundle
 879                 return bundle;
 880         }
 881
 882         // if appropriate (e.g. when debugging), try a bit harder
 883
 884         env = getenv("DYLD_FRAMEWORK_PATH");
 885         len = (env != NULL) ? strlen(env) : 0;
 886
 887         // trim any trailing slashes
 888         while (len > 1) {
 889                 if (env[len - 1] != '/') {
 890                         break;
 891                 }
 892                 len--;
 893         }
 894
 895         // if DYLD_FRAMEWORK_PATH is ".../xxx~sym" than try ".../xxx~dst"
 896         if ((len > SUFFIX_SYM_LEN) &&
 897             (strncmp(&env[len - SUFFIX_SYM_LEN], SUFFIX_SYM, SUFFIX_SYM_LEN) == 0) &&
 898             ((len + SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN) < MAXPATHLEN)) {
 899                 char            path[MAXPATHLEN];
 900                 CFURLRef        url;
 901
 902                 strlcpy(path, env, sizeof(path));
 903                 strlcpy(&path[len - SUFFIX_SYM_LEN], SUFFIX_DST, sizeof(path) - (len - SUFFIX_SYM_LEN));
 904                 strlcat(&path[len], SYSTEMCONFIGURATION_FRAMEWORK_PATH, sizeof(path) - len);
 905
 906                 url = CFURLCreateFromFileSystemRepresentation(NULL,
 907                                                               (UInt8 *)path,
 908                                                               len + SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN,
 909                                                               TRUE);
 910                 bundle = CFBundleCreate(NULL, url);
 911                 CFRelease(url);
 912         }
 913
 914         if (bundle == NULL) {
 915                 static  Boolean warned  = FALSE;
 916
 917                 SCLog(!warned, LOG_WARNING,
 918                       CFSTR("_SC_CFBundleGet(), could not get CFBundle for \"%@\""),
 919                       SYSTEMCONFIGURATION_BUNDLE_ID);
 920                 warned = TRUE;
 921         }
 922
 923         return bundle;
 924 }
 925
 926
 927 CFStringRef
 928 _SC_CFBundleCopyNonLocalizedString(CFBundleRef bundle, CFStringRef key, CFStringRef value, CFStringRef tableName)
 929 {
 930         CFDataRef       data    = NULL;
 931         SInt32          errCode = 0;
 932         Boolean         ok;
 933         CFURLRef        resourcesURL;
 934         CFStringRef     str     = NULL;
 935         CFURLRef        url;
 936
 937         if ((tableName == NULL) || CFEqual(tableName, CFSTR(""))) tableName = CFSTR("Localizable");
 938
 939         /*
 940          * First, try getting the requested string using a manually constructed
 941          * URL to <bundle>/Resources/English.lproj/<tableName>.strings. Do this
 942          * because CFBundleCopyResourceURLForLocalization() uses CFPreferences
 943          * to get the preferred localizations, CFPreferences talks to
 944          * OpenDirectory, and OpenDirectory tries to obtain the platform UUID.
 945          * On machines where the platform UUID is set by InterfaceNamer, a
 946          * deadlock can occur if InterfaceNamer calls
 947          * CFBundleCopyResourceURLForLocalization() before setting the
 948          * platform UUID in the kernel.
 949          */
 950         resourcesURL = CFBundleCopyResourcesDirectoryURL(bundle);
 951         if (resourcesURL != NULL) {
 952                 CFStringRef fileName = CFStringCreateWithFormat(
 953                                             NULL, NULL, CFSTR("%@.strings"), tableName);
 954                 CFURLRef enlproj = CFURLCreateCopyAppendingPathComponent(
 955                                       NULL, resourcesURL, CFSTR("English.lproj"), true);
 956                 url = CFURLCreateCopyAppendingPathComponent(
 957                                    NULL, enlproj, fileName, false);
 958                 CFRelease(enlproj);
 959                 CFRelease(fileName);
 960                 CFRelease(resourcesURL);
 961
 962 #pragma GCC diagnostic push
 963 #pragma GCC diagnostic ignored "-Wdeprecated"
 964                 ok = CFURLCreateDataAndPropertiesFromResource(NULL,
 965                                                               url,
 966                                                               &data,
 967                                                               NULL,
 968                                                               NULL,
 969                                                               &errCode);
 970 #pragma GCC diagnostic pop
 971                 if (!ok) {
 972                         /*
 973                          * Failed to get the data using a manually-constructed URL
 974                          * for the given strings table. Fall back to using
 975                          * CFBundleCopyResourceURLForLocalization() below.
 976                          */
 977                         data = NULL;
 978                 }
 979                 CFRelease(url);
 980         }
 981
 982         if (data == NULL) {
 983                 url = CFBundleCopyResourceURLForLocalization(bundle,
 984                                                              tableName,
 985                                                              CFSTR("strings"),
 986                                                              NULL,
 987                                                              CFSTR("English"));
 988                 if (url != NULL) {
 989 #pragma GCC diagnostic push
 990 #pragma GCC diagnostic ignored "-Wdeprecated"
 991                         ok = CFURLCreateDataAndPropertiesFromResource(NULL,
 992                                                                       url,
 993                                                                       &data,
 994                                                                       NULL,
 995                                                                       NULL,
 996                                                                       &errCode);
 997 #pragma GCC diagnostic pop
 998                         if (!ok) {
 999                                 data = NULL;
1000                         }
1001                         CFRelease(url);
1002                 }
1003         }
1004
1005         if (data != NULL) {
1006                 CFDictionaryRef table;
1007
1008                 table = CFPropertyListCreateWithData(NULL,
1009                                                      data,
1010                                                      kCFPropertyListImmutable,
1011                                                      NULL,
1012                                                      NULL);
1013                 if (table != NULL) {
1014                         if (isA_CFDictionary(table)) {
1015                                 str = CFDictionaryGetValue(table, key);
1016                                 if (str != NULL) {
1017                                         CFRetain(str);
1018                                 }
1019                         }
1020
1021                         CFRelease(table);
1022                 }
1023
1024                 CFRelease(data);
1025         }
1026
1027         if (str == NULL) {
1028                 str = CFRetain(value);
1029         }
1030
1031         return str;
1032 }
1033
1034
1035 #pragma mark -
1036 #pragma mark Mach port / CFMachPort management
1037
1038
1039 CFMachPortRef
1040 _SC_CFMachPortCreateWithPort(const char         *portDescription,
1041                              mach_port_t        portNum,
1042                              CFMachPortCallBack callout,
1043                              CFMachPortContext  *context)
1044 {
1045         CFMachPortRef   port;
1046         Boolean shouldFree      = FALSE;
1047
1048         port = CFMachPortCreateWithPort(NULL, portNum, callout, context, &shouldFree);
1049         if ((port == NULL) || shouldFree) {
1050                 CFStringRef     err;
1051                 char            *crash_info     = NULL;
1052
1053                 SCLog(TRUE, LOG_ERR,
1054                       CFSTR("%s: CFMachPortCreateWithPort() failed , port = %p"),
1055                       portDescription,
1056                       (void *)(uintptr_t)portNum);
1057                 if (port != NULL) {
1058                         err = CFStringCreateWithFormat(NULL, NULL,
1059                                                        CFSTR("%s: CFMachPortCreateWithPort recycled, [old] port = %@"),
1060                                                        portDescription, port);
1061                 } else {
1062                         err = CFStringCreateWithFormat(NULL, NULL,
1063                                                        CFSTR("%s: CFMachPortCreateWithPort returned NULL"),
1064                                                        portDescription);
1065                 }
1066                 crash_info = _SC_cfstring_to_cstring(err, NULL, 0, kCFStringEncodingASCII);
1067                 if (err != NULL) CFRelease(err);
1068
1069
1070                 err = CFStringCreateWithFormat(NULL,
1071                                                NULL,
1072                                                CFSTR("A recycled mach_port has been detected by \"%s\"."),
1073                                                getprogname());
1074                 _SC_crash(crash_info, CFSTR("CFMachPort error"), err);
1075                 CFAllocatorDeallocate(NULL, crash_info);
1076                 if (err != NULL) CFRelease(err);
1077         }
1078
1079         return port;
1080 }
1081
1082
1083 #pragma mark -
1084 #pragma mark DOS encoding/codepage
1085
1086
1087 #if     !TARGET_OS_IPHONE
1088 void
1089 _SC_dos_encoding_and_codepage(CFStringEncoding  macEncoding,
1090                               UInt32            macRegion,
1091                               CFStringEncoding  *dosEncoding,
1092                               UInt32            *dosCodepage)
1093 {
1094         switch (macEncoding) {
1095         case kCFStringEncodingMacRoman:
1096                 if (macRegion != 0) /* anything non-zero is not US */
1097                 *dosEncoding = kCFStringEncodingDOSLatin1;
1098                 else /* US region */
1099                 *dosEncoding = kCFStringEncodingDOSLatinUS;
1100                 break;
1101
1102         case kCFStringEncodingMacJapanese:
1103                 *dosEncoding = kCFStringEncodingDOSJapanese;
1104                 break;
1105
1106         case kCFStringEncodingMacChineseTrad:
1107                 *dosEncoding = kCFStringEncodingDOSChineseTrad;
1108                 break;
1109
1110         case kCFStringEncodingMacKorean:
1111                 *dosEncoding = kCFStringEncodingDOSKorean;
1112                 break;
1113
1114         case kCFStringEncodingMacArabic:
1115                 *dosEncoding = kCFStringEncodingDOSArabic;
1116                 break;
1117
1118         case kCFStringEncodingMacHebrew:
1119                 *dosEncoding = kCFStringEncodingDOSHebrew;
1120                 break;
1121
1122         case kCFStringEncodingMacGreek:
1123                 *dosEncoding = kCFStringEncodingDOSGreek;
1124                 break;
1125
1126         case kCFStringEncodingMacCyrillic:
1127                 *dosEncoding = kCFStringEncodingDOSCyrillic;
1128                 break;
1129
1130         case kCFStringEncodingMacThai:
1131                 *dosEncoding = kCFStringEncodingDOSThai;
1132                 break;
1133
1134         case kCFStringEncodingMacChineseSimp:
1135                 *dosEncoding = kCFStringEncodingDOSChineseSimplif;
1136                 break;
1137
1138         case kCFStringEncodingMacCentralEurRoman:
1139                 *dosEncoding = kCFStringEncodingDOSLatin2;
1140                 break;
1141
1142         case kCFStringEncodingMacTurkish:
1143                 *dosEncoding = kCFStringEncodingDOSTurkish;
1144                 break;
1145
1146         case kCFStringEncodingMacCroatian:
1147                 *dosEncoding = kCFStringEncodingDOSLatin2;
1148                 break;
1149
1150         case kCFStringEncodingMacIcelandic:
1151                 *dosEncoding = kCFStringEncodingDOSIcelandic;
1152                 break;
1153
1154         case kCFStringEncodingMacRomanian:
1155                 *dosEncoding = kCFStringEncodingDOSLatin2;
1156                 break;
1157
1158         case kCFStringEncodingMacFarsi:
1159                 *dosEncoding = kCFStringEncodingDOSArabic;
1160                 break;
1161
1162         case kCFStringEncodingMacUkrainian:
1163                 *dosEncoding = kCFStringEncodingDOSCyrillic;
1164                 break;
1165
1166         default:
1167                 *dosEncoding = kCFStringEncodingDOSLatin1;
1168                 break;
1169         }
1170
1171         *dosCodepage = CFStringConvertEncodingToWindowsCodepage(*dosEncoding);
1172         return;
1173 }
1174 #endif  // !TARGET_OS_IPHONE
1175
1176
1177 #pragma mark -
1178 #pragma mark Debugging
1179
1180
1181 /*
1182  * print status of in-use mach ports
1183  */
1184 void
1185 _SC_logMachPortStatus(void)
1186 {
1187         kern_return_t           status;
1188         mach_port_name_array_t  ports;
1189         mach_port_type_array_t  types;
1190         mach_msg_type_number_t  pi, pn, tn;
1191         CFMutableStringRef      str;
1192
1193         SCLog(TRUE, LOG_NOTICE, CFSTR("----------"));
1194
1195         /* report on ALL mach ports associated with this task */
1196         status = mach_port_names(mach_task_self(), &ports, &pn, &types, &tn);
1197         if (status == MACH_MSG_SUCCESS) {
1198                 str = CFStringCreateMutable(NULL, 0);
1199                 for (pi = 0; pi < pn; pi++) {
1200                         char    rights[16], *rp = &rights[0];
1201
1202                         if (types[pi] != MACH_PORT_TYPE_NONE) {
1203                                 *rp++ = ' ';
1204                                 *rp++ = '(';
1205                                 if (types[pi] & MACH_PORT_TYPE_SEND)
1206                                         *rp++ = 'S';
1207                                 if (types[pi] & MACH_PORT_TYPE_RECEIVE)
1208                                         *rp++ = 'R';
1209                                 if (types[pi] & MACH_PORT_TYPE_SEND_ONCE)
1210                                         *rp++ = 'O';
1211                                 if (types[pi] & MACH_PORT_TYPE_PORT_SET)
1212                                         *rp++ = 'P';
1213                                 if (types[pi] & MACH_PORT_TYPE_DEAD_NAME)
1214                                         *rp++ = 'D';
1215                                 *rp++ = ')';
1216                         }
1217                         *rp = '\0';
1218                         CFStringAppendFormat(str, NULL, CFSTR(" %d%s"), ports[pi], rights);
1219                 }
1220                 SCLog(TRUE, LOG_NOTICE, CFSTR("Task ports (n=%d):%@"), pn, str);
1221                 CFRelease(str);
1222         }
1223
1224         return;
1225 }
1226
1227
1228 void
1229 _SC_logMachPortReferences(const char *str, mach_port_t port)
1230 {
1231         const char              *blanks         = "                                                            ";
1232         char                    buf[60];
1233         mach_port_type_t        pt;
1234         mach_port_status_t      recv_status     = { 0 };
1235         mach_port_urefs_t       refs_send       = 0;
1236         mach_port_urefs_t       refs_recv       = 0;
1237         mach_port_urefs_t       refs_once       = 0;
1238         mach_port_urefs_t       refs_pset       = 0;
1239         mach_port_urefs_t       refs_dead       = 0;
1240         kern_return_t           status;
1241
1242         buf[0] = '\0';
1243         if (str != NULL) {
1244                 static int      is_configd      = -1;
1245
1246                 if (is_configd == -1) {
1247                         is_configd = (strcmp(getprogname(), _SC_SERVER_PROG) == 0);
1248                 }
1249                 if (is_configd == 1) {
1250                         // if "configd", add indication if this is the M[ain] or [P]lugin thread
1251                         strlcpy(buf,
1252                                 (CFRunLoopGetMain() == CFRunLoopGetCurrent()) ? "M " : "P ",
1253                                 sizeof(buf));
1254                 }
1255
1256                 // add provided string
1257                 strlcat(buf, str, sizeof(buf));
1258
1259                 // fill
1260                 strlcat(buf, blanks, sizeof(buf));
1261                 if (strcmp(&buf[sizeof(buf) - 3], "  ") == 0) {
1262                         buf[sizeof(buf) - 3] = ':';
1263                 }
1264         }
1265
1266         status = mach_port_type(mach_task_self(), port, &pt);
1267         if (status != KERN_SUCCESS) {
1268                 SCLog(TRUE, LOG_NOTICE,
1269                       CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND): %s"),
1270                       buf,
1271                       port,
1272                       mach_error_string(status));
1273                 return;
1274         }
1275
1276         if ((pt & MACH_PORT_TYPE_SEND) != 0) {
1277                 status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND,      &refs_send);
1278                 if (status != KERN_SUCCESS) {
1279                         SCLog(TRUE, LOG_NOTICE,
1280                               CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND): %s"),
1281                               buf,
1282                               port,
1283                               mach_error_string(status));
1284                         return;
1285                 }
1286         }
1287
1288         if ((pt & MACH_PORT_TYPE_RECEIVE) != 0) {
1289                 mach_msg_type_number_t  count;
1290
1291                 status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_RECEIVE,   &refs_recv);
1292                 if (status != KERN_SUCCESS) {
1293                         SCLog(TRUE, LOG_NOTICE,
1294                               CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_RECEIVE): %s"),
1295                               buf,
1296                               port,
1297                               mach_error_string(status));
1298                         return;
1299                 }
1300
1301                 count = MACH_PORT_RECEIVE_STATUS_COUNT;
1302                 status = mach_port_get_attributes(mach_task_self(),
1303                                                port,
1304                                                MACH_PORT_RECEIVE_STATUS,
1305                                                (mach_port_info_t)&recv_status,
1306                                                &count);
1307                 if (status != KERN_SUCCESS) {
1308                         SCLog(TRUE, LOG_NOTICE,
1309                               CFSTR("%smach_port_get_attributes(..., 0x%x, MACH_PORT_RECEIVE_STATUS): %s"),
1310                               buf,
1311                               port,
1312                               mach_error_string(status));
1313                         return;
1314                 }
1315         }
1316
1317         if ((pt & MACH_PORT_TYPE_SEND_ONCE) != 0) {
1318                 status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND_ONCE, &refs_once);
1319                 if (status != KERN_SUCCESS) {
1320                         SCLog(TRUE, LOG_NOTICE,
1321                               CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND_ONCE): %s"),
1322                               buf,
1323                               port,
1324                               mach_error_string(status));
1325                         return;
1326                 }
1327         }
1328
1329         if ((pt & MACH_PORT_TYPE_PORT_SET) != 0) {
1330                 status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_PORT_SET,  &refs_pset);
1331                 if (status != KERN_SUCCESS) {
1332                         SCLog(TRUE, LOG_NOTICE,
1333                               CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_PORT_SET): %s"),
1334                               buf,
1335                               port,
1336                               mach_error_string(status));
1337                         return;
1338                 }
1339         }
1340
1341         if ((pt & MACH_PORT_TYPE_DEAD_NAME) != 0) {
1342                 status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_DEAD_NAME, &refs_dead);
1343                 if (status != KERN_SUCCESS) {
1344                         SCLog(TRUE, LOG_NOTICE,
1345                               CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_DEAD_NAME): %s"),
1346                               buf,
1347                               port,
1348                               mach_error_string(status));
1349                         return;
1350                 }
1351         }
1352
1353         SCLog(TRUE, LOG_NOTICE,
1354               CFSTR("%smach port 0x%x (%d): send=%d, receive=%d, send once=%d, port set=%d, dead name=%d%s%s"),
1355               buf,
1356               port,
1357               port,
1358               refs_send,
1359               refs_recv,
1360               refs_once,
1361               refs_pset,
1362               refs_dead,
1363               recv_status.mps_nsrequest ? ", no more senders"   : "",
1364               ((pt & MACH_PORT_TYPE_DEAD_NAME) != 0) ? ", dead name request" : "");
1365
1366         return;
1367 }
1368
1369
1370 CFStringRef
1371 _SC_copyBacktrace()
1372 {
1373         int                     n;
1374         void                    *stack[64];
1375         char                    **symbols;
1376         CFMutableStringRef      trace;
1377
1378         n = backtrace(stack, sizeof(stack)/sizeof(stack[0]));
1379         if (n == -1) {
1380                 SCLog(TRUE, LOG_ERR, CFSTR("backtrace() failed: %s"), strerror(errno));
1381                 return NULL;
1382         }
1383
1384         trace = CFStringCreateMutable(NULL, 0);
1385
1386         symbols = backtrace_symbols(stack, n);
1387         if (symbols != NULL) {
1388                 int     i;
1389
1390                 for (i = 0; i < n; i++) {
1391                         CFStringAppendFormat(trace, NULL, CFSTR("%s\n"), symbols[i]);
1392                 }
1393
1394                 free(symbols);
1395         }
1396
1397         return trace;
1398 }
1399
1400
1401 /* CrashReporter info */
1402 #if     !TARGET_OS_IPHONE
1403 #include <CrashReporterClient.h>
1404 #else   // !TARGET_OS_IPHONE
1405 const char *__crashreporter_info__ = NULL;
1406 asm(".desc ___crashreporter_info__, 0x10");
1407 #endif  // !TARGET_OS_IPHONE
1408
1409
1410 static Boolean
1411 _SC_SimulateCrash(const char *crash_info, CFStringRef notifyHeader, CFStringRef notifyMessage)
1412 {
1413         Boolean ok      = FALSE;
1414
1415 #if ! TARGET_IPHONE_SIMULATOR
1416         static bool     (*dyfunc_SimulateCrash)(pid_t, mach_exception_data_type_t, CFStringRef) = NULL;
1417         static void     *image                                                                  = NULL;
1418
1419         if ((dyfunc_SimulateCrash == NULL) && (image == NULL)) {
1420                 const char      *framework      = "/System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport";
1421                 struct stat     statbuf;
1422                 const char      *suffix = getenv("DYLD_IMAGE_SUFFIX");
1423                 char            path[MAXPATHLEN];
1424
1425                 strlcpy(path, framework, sizeof(path));
1426                 if (suffix) strlcat(path, suffix, sizeof(path));
1427                 if (0 <= stat(path, &statbuf)) {
1428                         image = dlopen(path, RTLD_LAZY | RTLD_LOCAL);
1429                 } else {
1430                         image = dlopen(framework, RTLD_LAZY | RTLD_LOCAL);
1431                 }
1432
1433                 if (image != NULL) {
1434                         dyfunc_SimulateCrash = dlsym(image, "SimulateCrash");
1435                 } else {
1436                         image = (void *)0x1;    // to ensure that we only dlopen() once
1437                 }
1438         }
1439
1440         if (dyfunc_SimulateCrash != NULL) {
1441                 CFStringRef     str;
1442
1443                 str = CFStringCreateWithCString(NULL, crash_info, kCFStringEncodingUTF8);
1444                 ok = dyfunc_SimulateCrash(getpid(), 0xbad0005cull, str);
1445                 CFRelease(str);
1446         }
1447
1448 #if     TARGET_OS_EMBEDDED && !defined(DO_NOT_INFORM)
1449         if (ok && (notifyHeader != NULL) && (notifyMessage != NULL)) {
1450                 static Boolean  warned  = FALSE;
1451
1452                 if (!warned) {
1453                         CFStringRef     displayMessage;
1454
1455                         displayMessage = CFStringCreateWithFormat(NULL,
1456                                                                   NULL,
1457                                                                   CFSTR("%@\n\nPlease collect the crash report and file a Radar."),
1458                                                                   notifyMessage);
1459                         CFUserNotificationDisplayNotice(0,
1460                                                         kCFUserNotificationStopAlertLevel,
1461                                                         NULL,
1462                                                         NULL,
1463                                                         NULL,
1464                                                         notifyHeader,
1465                                                         displayMessage,
1466                                                         NULL);
1467                         CFRelease(displayMessage);
1468                         warned = TRUE;
1469                 }
1470         }
1471 #endif  // TARGET_OS_EMBEDDED && !defined(DO_NOT_INFORM)
1472 #endif /* ! TARGET_IPHONE_SIMULATOR */
1473
1474         return ok;
1475 }
1476
1477
1478 void
1479 _SC_crash(const char *crash_info, CFStringRef notifyHeader, CFStringRef notifyMessage)
1480 {
1481         Boolean ok      = FALSE;
1482
1483         if (crash_info != NULL) {
1484 #if     !TARGET_OS_IPHONE
1485                 CRSetCrashLogMessage(crash_info);
1486 #else   // !TARGET_OS_IPHONE
1487                 __crashreporter_info__ = crash_info;
1488 #endif  // !TARGET_OS_IPHONE
1489
1490                 SCLog(TRUE, LOG_ERR, CFSTR("%s"), crash_info);
1491         }
1492
1493         if (_SC_isAppleInternal()) {
1494                 // simulate a crash report
1495                 ok = _SC_SimulateCrash(crash_info, notifyHeader, notifyMessage);
1496 #ifndef DO_NOT_CRASH
1497                 if (!ok) {
1498                         // if we could not simulate a crash report, crash for real
1499                         __builtin_trap();
1500                 }
1501 #endif  // DO_NOT_CRASH
1502         }
1503
1504 #if     !TARGET_OS_IPHONE
1505         CRSetCrashLogMessage(NULL);
1506 #else   // !TARGET_OS_IPHONE
1507         __crashreporter_info__ = NULL;
1508 #endif  // !TARGET_OS_IPHONE
1509         return;
1510 }
1511
1512
1513 Boolean
1514 _SC_getconninfo(int socket, struct sockaddr_storage *src_addr, struct sockaddr_storage *dest_addr, int *if_index, uint32_t *flags)
1515 {
1516         struct so_cinforeq      request;
1517
1518         memset(&request, 0, sizeof(request));
1519
1520         if (src_addr != NULL) {
1521                 memset(src_addr, 0, sizeof(*src_addr));
1522                 request.scir_src = (struct sockaddr *)src_addr;
1523                 request.scir_src_len = sizeof(*src_addr);
1524         }
1525
1526         if (dest_addr != NULL) {
1527                 memset(dest_addr, 0, sizeof(*dest_addr));
1528                 request.scir_dst = (struct sockaddr *)dest_addr;
1529                 request.scir_dst_len = sizeof(*dest_addr);
1530         }
1531
1532         if (ioctl(socket, SIOCGCONNINFO, &request) != 0) {
1533                 SCLog(TRUE, LOG_WARNING, CFSTR("SIOCGCONNINFO failed: %s"), strerror(errno));
1534                 return FALSE;
1535         }
1536
1537         if (if_index != NULL) {
1538                 *if_index = 0;
1539                 *if_index = request.scir_ifindex;
1540         }
1541
1542         if (flags != NULL) {
1543                 *flags = 0;
1544                 *flags = request.scir_flags;
1545         }
1546
1547         return TRUE;
1548 }