scutil.tproj/scutil.c

   1 /*
   2  * Copyright (c) 2000-2018 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 13, 2005                Allan Nathanson <ajn@apple.com>
  28  * - added SCPreferences support
  29  *
  30  * August 4, 2004               Allan Nathanson <ajn@apple.com>
  31  * - added network configuration (prefs) support
  32  *
  33  * September 25, 2002           Allan Nathanson <ajn@apple.com>
  34  * - added command line history & editing
  35  *
  36  * July 9, 2001                 Allan Nathanson <ajn@apple.com>
  37  * - added "-r" option for checking network reachability
  38  * - added "-w" option to check/wait for the presence of a
  39  *   dynamic store key.
  40  *
  41  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  42  * - public API conversion
  43  *
  44  * November 9, 2000             Allan Nathanson <ajn@apple.com>
  45  * - initial revision
  46  */
  47
  48 #include <TargetConditionals.h>
  49 #include <ctype.h>
  50 #include <getopt.h>
  51 #include <stdio.h>
  52 #include <stdlib.h>
  53 #include <string.h>
  54 #include <termios.h>
  55 #include <unistd.h>
  56 #include <sysexits.h>
  57
  58 #ifdef  DEBUG
  59 #include <mach/mach.h>
  60 #include <mach/mach_error.h>
  61 #endif  /* DEBUG */
  62
  63 #include "scutil.h"
  64 #include "commands.h"
  65 #include "dictionary.h"
  66 #include "net.h"
  67 #include "nc.h"
  68 #include "prefs.h"
  69 #include "session.h"
  70 #include "tests.h"
  71
  72 #define LINE_LENGTH 2048
  73
  74 __private_extern__ AuthorizationRef     authorization   = NULL;
  75 __private_extern__ InputRef             currentInput    = NULL;
  76 __private_extern__ Boolean              doDispatch      = FALSE;
  77 __private_extern__ int                  nesting         = 0;
  78 __private_extern__ CFRunLoopRef         notifyRl        = NULL;
  79 __private_extern__ CFRunLoopSourceRef   notifyRls       = NULL;
  80 __private_extern__ SCPreferencesRef     prefs           = NULL;
  81 __private_extern__ SCDynamicStoreRef    store           = NULL;
  82 __private_extern__ CFPropertyListRef    value           = NULL;
  83 __private_extern__ CFMutableArrayRef    watchedKeys     = NULL;
  84 __private_extern__ CFMutableArrayRef    watchedPatterns = NULL;
  85
  86 static const struct option longopts[] = {
  87 //      { "debug",              no_argument,            NULL,   'd'     },
  88 //      { "dispatch",           no_argument,            NULL,   'D'     },
  89 //      { "verbose",            no_argument,            NULL,   'v'     },
  90 //      { "SPI",                no_argument,            NULL,   'p'     },
  91 //      { "check-reachability", required_argument,      NULL,   'r'     },
  92 //      { "timeout",            required_argument,      NULL,   't'     },
  93 //      { "wait-key",           required_argument,      NULL,   'w'     },
  94 //      { "watch-reachability", no_argument,            NULL,   'W'     },
  95         { "dns",                no_argument,            NULL,   0       },
  96         { "get",                required_argument,      NULL,   0       },
  97         { "error",              required_argument,      NULL,   0       },
  98         { "help",               no_argument,            NULL,   '?'     },
  99         { "nc",                 required_argument,      NULL,   0       },
 100         { "net",                no_argument,            NULL,   0       },
 101         { "nwi",                no_argument,            NULL,   0       },
 102         { "prefs",              no_argument,            NULL,   0       },
 103         { "proxy",              no_argument,            NULL,   0       },
 104         { "renew",              required_argument,      NULL,   0       },
 105         { "set",                required_argument,      NULL,   0       },
 106         { "snapshot",           no_argument,            NULL,   0       },
 107         { "user",               required_argument,      NULL,   0       },
 108         { "password",           required_argument,      NULL,   0       },
 109         { "secret",             required_argument,      NULL,   0       },
 110         { "log",                required_argument,      NULL,   0       },
 111         { "advisory",           required_argument,      NULL,   0       },
 112 #if     !TARGET_OS_IPHONE
 113         { "allow-new-interfaces", no_argument,          NULL,   0       },
 114 #endif  // !TARGET_OS_IPHONE
 115         { "disable-until-needed", no_argument,          NULL,   0       },
 116         { NULL,                 0,                      NULL,   0       }
 117 };
 118
 119
 120 __private_extern__
 121 CFStringRef
 122 _copyStringFromSTDIN(CFStringRef prompt, CFStringRef defaultValue)
 123 {
 124         char            buf[1024];
 125         int             i;
 126         Boolean         is_user_prompt = (prompt != NULL && isatty(STDIN_FILENO) && isatty(STDOUT_FILENO));
 127         int             len;
 128         char            *modbuf;
 129         int             modlen;
 130         CFStringRef     utf8;
 131
 132         /* Print out a prompt to user that entry is desired */
 133         if (is_user_prompt) {
 134                 if (defaultValue != NULL) {
 135                         SCPrint(TRUE, stdout, CFSTR("%@ [%@]: "), prompt, defaultValue);
 136                 } else {
 137                         SCPrint(TRUE, stdout, CFSTR("%@: "), prompt);
 138                 }
 139         }
 140
 141         /* Get user input */
 142         if (fgets(buf, sizeof(buf), stdin) == NULL) {
 143                 return NULL;
 144         }
 145
 146         /* Prepare for trim */
 147         len = (int)strlen(buf);
 148         modbuf = buf;
 149         modlen = len;
 150
 151         /* Trim new-line */
 152         if ((modlen > 0) && (modbuf[modlen - 1] == '\n')) {
 153                 modbuf[modlen - 1] = '\0';
 154                 modlen--;
 155         }
 156
 157         /* If nothing was entered at the user prompt, set default */
 158         if (is_user_prompt && defaultValue != NULL && modlen == 0) {
 159                 CFRetain(defaultValue);
 160                 return defaultValue;
 161         }
 162
 163         /* Trim spaces from front */
 164         while (modlen > 0 && isspace(modbuf[0])) {
 165                 modbuf = &modbuf[1];
 166                 modlen--;
 167         }
 168
 169         /* Trim spaces from back */
 170         for (i = modlen - 1; i >= 0; i--) {
 171                 if (isspace(buf[i])) {
 172                         buf[i] = '\0';
 173                         modlen--;
 174                 } else {
 175                         break;
 176                 }
 177         }
 178
 179         utf8 = CFStringCreateWithBytes(NULL, (UInt8 *)modbuf, modlen, kCFStringEncodingUTF8, TRUE);
 180         return utf8;
 181 }
 182
 183 static char *
 184 getLine(char *buf, int len, InputRef src)
 185 {
 186         int     n;
 187
 188         if (src->el) {
 189                 int             count;
 190                 const char      *line;
 191
 192                 line = el_gets(src->el, &count);
 193                 if (line == NULL)
 194                         return NULL;
 195
 196                 strlcpy(buf, line, len);
 197         } else {
 198                 if (fgets(buf, len, src->fp) == NULL)
 199                         return NULL;
 200         }
 201
 202         n = (int)strlen(buf);
 203         if (buf[n-1] == '\n') {
 204                 /* the entire line fit in the buffer, remove the newline */
 205                 buf[n-1] = '\0';
 206         } else if (!src->el) {
 207                 /* eat the remainder of the line */
 208                 do {
 209                         n = fgetc(src->fp);
 210                 } while ((n != '\n') && (n != EOF));
 211         }
 212
 213         if (src->h && (buf[0] != '\0')) {
 214                 HistEvent       ev;
 215
 216                 history(src->h, &ev, H_ENTER, buf);
 217         }
 218
 219         return buf;
 220 }
 221
 222
 223 static char *
 224 getString(char **line)
 225 {
 226         char *s, *e, c, *string;
 227         int i, isQuoted = 0, escaped = 0;
 228
 229         if (*line == NULL) return NULL;
 230         if (**line == '\0') return NULL;
 231
 232         /* Skip leading white space */
 233         while (isspace(**line)) *line += 1;
 234
 235         /* Grab the next string */
 236         s = *line;
 237         if (*s == '\0') {
 238                 return NULL;                            /* no string available */
 239         } else if (*s == '"') {
 240                 isQuoted = 1;                           /* it's a quoted string */
 241                 s++;
 242         }
 243
 244         for (e = s; (c = *e) != '\0'; e++) {
 245                 if (isQuoted && (c == '"'))
 246                         break;                          /* end of quoted string */
 247                 if (c == '\\') {
 248                         e++;
 249                         if (*e == '\0')
 250                                 break;                  /* if premature end-of-string */
 251                         if ((*e == '"') || isspace(*e))
 252                                 escaped++;              /* if escaped quote or white space */
 253                 }
 254                 if (!isQuoted && isspace(c))
 255                         break;                          /* end of non-quoted string */
 256         }
 257
 258         string = malloc(e - s - escaped + 1);
 259
 260         for (i = 0; s < e; s++) {
 261                 string[i] = *s;
 262                 if (!((s[0] == '\\') && ((s[1] == '"') || isspace(s[1])))) i++;
 263         }
 264         string[i] = '\0';
 265
 266         if (isQuoted)
 267                 e++;                                    /* move past end of quoted string */
 268
 269         *line = e;
 270         return string;
 271 }
 272
 273
 274 __private_extern__
 275 Boolean
 276 process_line(InputRef src)
 277 {
 278         char    *arg;
 279         int     argc                    = 0;
 280         char    **argv                  = NULL;
 281         int     i;
 282         char    line[LINE_LENGTH];
 283         char    *s                      = line;
 284
 285         // if end-of-file, exit
 286         if (getLine(line, sizeof(line), src) == NULL)
 287                 return FALSE;
 288
 289         if (nesting > 0) {
 290                 SCPrint(TRUE, stdout, CFSTR("%d> %s\n"), nesting, line);
 291         }
 292
 293         // break up the input line
 294         while ((arg = getString(&s)) != NULL) {
 295                 if (argc == 0)
 296                         argv = (char **)malloc(2 * sizeof(char *));
 297                 else
 298                         argv = (char **)reallocf(argv, ((argc + 2) * sizeof(char *)));
 299                 argv[argc++] = arg;
 300         }
 301
 302         if (argc == 0) {
 303                 return TRUE;            // if no arguments
 304         }
 305
 306         /* process the command */
 307         if (*argv[0] != '#') {
 308                 argv[argc] = NULL;      // just in case...
 309                 currentInput = src;
 310                 do_command(argc, argv);
 311         }
 312
 313         /* free the arguments */
 314         for (i = 0; i < argc; i++) {
 315                 free(argv[i]);
 316         }
 317         free(argv);
 318
 319         return !termRequested;
 320 }
 321
 322
 323 static void
 324 usage(const char *command)
 325 {
 326         SCPrint(TRUE, stderr, CFSTR("usage: %s\n"), command);
 327         SCPrint(TRUE, stderr, CFSTR("\tinteractive access to the dynamic store.\n"));
 328         SCPrint(TRUE, stderr, CFSTR("\n"));
 329         SCPrint(TRUE, stderr, CFSTR("   or: %s --prefs [preference-file]\n"), command);
 330         SCPrint(TRUE, stderr, CFSTR("\tinteractive access to the [raw] stored preferences.\n"));
 331         SCPrint(TRUE, stderr, CFSTR("\n"));
 332         SCPrint(TRUE, stderr, CFSTR("   or: %s [-W] -r nodename\n"), command);
 333         SCPrint(TRUE, stderr, CFSTR("   or: %s [-W] -r address\n"), command);
 334         SCPrint(TRUE, stderr, CFSTR("   or: %s [-W] -r local-address remote-address\n"), command);
 335         SCPrint(TRUE, stderr, CFSTR("\tcheck reachability of node, address, or address pair (-W to \"watch\").\n"));
 336         SCPrint(TRUE, stderr, CFSTR("\n"));
 337         SCPrint(TRUE, stderr, CFSTR("   or: %s -w dynamic-store-key [ -t timeout ]\n"), command);
 338         SCPrint(TRUE, stderr, CFSTR("\t-w\twait for presense of dynamic store key\n"));
 339         SCPrint(TRUE, stderr, CFSTR("\t-t\ttime to wait for key\n"));
 340         SCPrint(TRUE, stderr, CFSTR("\n"));
 341         SCPrint(TRUE, stderr, CFSTR("   or: %s --get pref\n"), command);
 342         SCPrint(TRUE, stderr, CFSTR("   or: %s --set pref [newval]\n"), command);
 343         SCPrint(TRUE, stderr, CFSTR("   or: %s --get filename path key  \n"), command);
 344         SCPrint(TRUE, stderr, CFSTR("\tpref\tdisplay (or set) the specified preference.  Valid preferences\n"));
 345         SCPrint(TRUE, stderr, CFSTR("\t\tinclude:\n"));
 346         SCPrint(TRUE, stderr, CFSTR("\t\t\tComputerName, LocalHostName, HostName\n"));
 347         SCPrint(TRUE, stderr, CFSTR("\tnewval\tNew preference value to be set.  If not specified,\n"));
 348         SCPrint(TRUE, stderr, CFSTR("\t\tthe new value will be read from standard input.\n"));
 349         SCPrint(TRUE, stderr, CFSTR("\n"));
 350         SCPrint(TRUE, stderr, CFSTR("   or: %s --dns\n"), command);
 351         SCPrint(TRUE, stderr, CFSTR("\tshow DNS configuration.\n"));
 352         SCPrint(TRUE, stderr, CFSTR("\n"));
 353         SCPrint(TRUE, stderr, CFSTR("   or: %s --proxy\n"), command);
 354         SCPrint(TRUE, stderr, CFSTR("\tshow \"proxy\" configuration.\n"));
 355         SCPrint(TRUE, stderr, CFSTR("\n"));
 356         SCPrint(TRUE, stderr, CFSTR("   or: %s --nwi\n"), command);
 357         SCPrint(TRUE, stderr, CFSTR("\tshow network information\n"));
 358         SCPrint(TRUE, stderr, CFSTR("\n"));
 359         SCPrint(TRUE, stderr, CFSTR("   or: %s --nc\n"), command);
 360         SCPrint(TRUE, stderr, CFSTR("\tshow VPN network configuration information. Use --nc help for full command list\n"));
 361
 362         if (_sc_debug) {
 363                 SCPrint(TRUE, stderr, CFSTR("\n"));
 364                 SCPrint(TRUE, stderr, CFSTR("   or: %s --log IPMonitor [off|on]\n"), command);
 365                 SCPrint(TRUE, stderr, CFSTR("\tmanage logging.\n"));
 366
 367                 SCPrint(TRUE, stderr, CFSTR("\n"));
 368                 SCPrint(TRUE, stderr, CFSTR("   or: %s --disable-until-needed <interfaceName> [on|off ]\n"), command);
 369                 SCPrint(TRUE, stderr, CFSTR("\tmanage secondary interface demand.\n"));
 370         }
 371
 372 #if     !TARGET_OS_IPHONE
 373         SCPrint(TRUE, stderr, CFSTR("\n"));
 374         SCPrint(TRUE, stderr, CFSTR("   or: %s --allow-new-interfaces [off|on]\n"), command);
 375         SCPrint(TRUE, stderr, CFSTR("\tmanage new interface creation with screen locked.\n"));
 376 #endif  // !TARGET_OS_IPHONE
 377
 378         if (getenv("ENABLE_EXPERIMENTAL_SCUTIL_COMMANDS")) {
 379                 SCPrint(TRUE, stderr, CFSTR("\n"));
 380                 SCPrint(TRUE, stderr, CFSTR("   or: %s --net\n"), command);
 381                 SCPrint(TRUE, stderr, CFSTR("\tmanage network configuration.\n"));
 382         }
 383
 384         SCPrint(TRUE, stderr, CFSTR("\n"));
 385         SCPrint(TRUE, stderr, CFSTR("   or: %s --error err#\n"), command);
 386         SCPrint(TRUE, stderr, CFSTR("\tdisplay a descriptive message for the given error code\n"));
 387
 388         exit (EX_USAGE);
 389 }
 390
 391
 392 static char *
 393 prompt(EditLine *el)
 394 {
 395 #pragma unused(el)
 396 #if     !TARGET_OS_SIMULATOR
 397         return "> ";
 398 #else   // !TARGET_OS_SIMULATOR
 399         return "sim> ";
 400 #endif  // !TARGET_OS_SIMULATOR
 401 }
 402
 403
 404 int
 405 main(int argc, char * const argv[])
 406 {
 407 #if     !TARGET_OS_IPHONE
 408         Boolean                 allowNewInterfaces      = FALSE;
 409 #endif  // !TARGET_OS_IPHONE
 410         Boolean                 disableUntilNeeded      = FALSE;
 411         const char *            advisoryInterface       = NULL;
 412         Boolean                 doAdvisory              = FALSE;
 413         Boolean                 doDNS                   = FALSE;
 414         Boolean                 doNet                   = FALSE;
 415         Boolean                 doNWI                   = FALSE;
 416         Boolean                 doPrefs                 = FALSE;
 417         Boolean                 doProxy                 = FALSE;
 418         Boolean                 doReach                 = FALSE;
 419         Boolean                 doSnap                  = FALSE;
 420         char                    *error                  = NULL;
 421         char                    *get                    = NULL;
 422         char                    *log                    = NULL;
 423         extern int              optind;
 424         int                     opt;
 425         int                     opti;
 426         const char              *prog                   = argv[0];
 427         char                    *renew                  = NULL;
 428         char                    *set                    = NULL;
 429         char                    *nc_cmd                 = NULL;
 430         InputRef                src;
 431         int                     timeout                 = 15;   /* default timeout (in seconds) */
 432         char                    *wait                   = NULL;
 433         Boolean                 watch                   = FALSE;
 434         int                     xStore                  = 0;    /* non dynamic store command line options */
 435
 436         /* process any arguments */
 437
 438         while ((opt = getopt_long(argc, argv, "dDvprt:w:W", longopts, &opti)) != -1) {
 439                 switch(opt) {
 440                 case 'd':
 441                         _sc_debug = TRUE;
 442                         _sc_log   = FALSE;      /* enable framework logging */
 443                         break;
 444                 case 'D':
 445                         doDispatch = TRUE;
 446                         break;
 447                 case 'v':
 448                         _sc_verbose = TRUE;
 449                         _sc_log     = FALSE;    /* enable framework logging */
 450                         break;
 451                 case 'p':
 452                         enablePrivateAPI = TRUE;
 453                         break;
 454                 case 'r':
 455                         doReach = TRUE;
 456                         xStore++;
 457                         break;
 458                 case 't':
 459                         timeout = atoi(optarg);
 460                         break;
 461                 case 'w':
 462                         wait = optarg;
 463                         xStore++;
 464                         break;
 465                 case 'W':
 466                         watch = TRUE;
 467                         break;
 468                 case 0:
 469                         if        (strcmp(longopts[opti].name, "dns") == 0) {
 470                                 doDNS = TRUE;
 471                                 xStore++;
 472                         } else if (strcmp(longopts[opti].name, "error") == 0) {
 473                                 error = optarg;
 474                                 xStore++;
 475                         } else if (strcmp(longopts[opti].name, "get") == 0) {
 476                                 get = optarg;
 477                                 xStore++;
 478                         } else if (strcmp(longopts[opti].name, "nc") == 0) {
 479                                 nc_cmd = optarg;
 480                                 xStore++;
 481                         } else if (strcmp(longopts[opti].name, "net") == 0) {
 482                                 doNet = TRUE;
 483                                 xStore++;
 484                         } else if (strcmp(longopts[opti].name, "nwi") == 0) {
 485                                 doNWI = TRUE;
 486                                 xStore++;
 487                         } else if (strcmp(longopts[opti].name, "prefs") == 0) {
 488                                 doPrefs = TRUE;
 489                                 xStore++;
 490                         } else if (strcmp(longopts[opti].name, "proxy") == 0) {
 491                                 doProxy = TRUE;
 492                                 xStore++;
 493                         } else if (strcmp(longopts[opti].name, "renew") == 0) {
 494                                 renew = optarg;
 495                                 xStore++;
 496                         } else if (strcmp(longopts[opti].name, "set") == 0) {
 497                                 set = optarg;
 498                                 xStore++;
 499                         } else if (strcmp(longopts[opti].name, "snapshot") == 0) {
 500                                 doSnap = TRUE;
 501                                 xStore++;
 502                         } else if (strcmp(longopts[opti].name, "log") == 0) {
 503                                 log = optarg;
 504                                 xStore++;
 505 #if     !TARGET_OS_IPHONE
 506                         } else if (strcmp(longopts[opti].name, "allow-new-interfaces") == 0) {
 507                                 allowNewInterfaces = TRUE;
 508                                 xStore++;
 509 #endif  // !TARGET_OS_IPHONE
 510                         } else if (strcmp(longopts[opti].name, "disable-until-needed") == 0) {
 511                                 disableUntilNeeded = TRUE;
 512                                 xStore++;
 513                         } else if (strcmp(longopts[opti].name, "user") == 0) {
 514                                 username = CFStringCreateWithCString(NULL, optarg, kCFStringEncodingUTF8);
 515                         } else if (strcmp(longopts[opti].name, "password") == 0) {
 516                                 password = CFStringCreateWithCString(NULL, optarg, kCFStringEncodingUTF8);
 517                         } else if (strcmp(longopts[opti].name, "secret") == 0) {
 518                                 sharedsecret = CFStringCreateWithCString(NULL, optarg, kCFStringEncodingUTF8);
 519                         } else if (strcmp(longopts[opti].name, "advisory") == 0) {
 520                                 doAdvisory = TRUE;
 521                                 advisoryInterface = optarg;
 522                                 xStore++;
 523                         }
 524                         break;
 525                 case '?':
 526                 default :
 527                         usage(prog);
 528                 }
 529         }
 530
 531         argc -= optind;
 532         argv += optind;
 533
 534         if (xStore > 1) {
 535                 // if we are attempting to process more than one type of request
 536                 usage(prog);
 537         }
 538
 539         /* are we checking (or watching) the reachability of a host/address */
 540         if (doReach) {
 541                 if (argc < 1) {
 542                         usage(prog);
 543                 }
 544                 if (watch) {
 545                         do_watchReachability(argc, (char **)argv);
 546                 } else {
 547                         do_checkReachability(argc, (char **)argv);
 548                 }
 549                 /* NOT REACHED */
 550         }
 551
 552         /* are we waiting on the presense of a dynamic store key */
 553         if (wait) {
 554                 do_wait(wait, timeout);
 555                 /* NOT REACHED */
 556         }
 557
 558         /* are we looking up the DNS configuration */
 559         if (doDNS) {
 560                 if (watch) {
 561                         do_watchDNSConfiguration(argc, (char **)argv);
 562                 } else {
 563                         do_showDNSConfiguration(argc, (char **)argv);
 564                 }
 565                 /* NOT REACHED */
 566         }
 567
 568         if (doNWI) {
 569                 if (watch) {
 570                         do_watchNWI(argc, (char**)argv);
 571                 } else {
 572                         do_showNWI(argc, (char**)argv);
 573                 }
 574                 /* NOT REACHED */
 575         }
 576
 577         if (doSnap) {
 578                 if (!enablePrivateAPI) {
 579                         usage(prog);
 580                 }
 581
 582                 do_open(0, NULL);       /* open the dynamic store */
 583                 do_snapshot(argc, (char**)argv);
 584                 exit(0);
 585         }
 586
 587         if (doAdvisory) {
 588                 do_advisory(advisoryInterface, watch, argc, (char**)argv);
 589                 /* NOT REACHED */
 590         }
 591
 592         /* are we translating error #'s to descriptive text */
 593         if (error != NULL) {
 594                 int     sc_status       = atoi(error);
 595
 596                 SCPrint(TRUE, stdout, CFSTR("Error: 0x%08x %d %s\n"),
 597                         sc_status,
 598                         sc_status,
 599                         SCErrorString(sc_status));
 600                 exit(0);
 601         }
 602
 603         /* are we looking up a preference value */
 604         if (get) {
 605                 if (argc == 0) {
 606                         if (findPref(get) < 0) {
 607                                 usage(prog);
 608                         }
 609                 } else if (argc == 2) {
 610                         /*
 611                          * extended --get
 612                          *   i.e. scutil --get <filename> <prefs path> <key>
 613                          *
 614                          * need to go back one argument to re-use the 1st "--get"
 615                          * argument as the prefs path name
 616                          */
 617                         argc++;
 618                         argv--;
 619                 } else {
 620                         usage(prog);
 621                 }
 622
 623                 do_getPref(get, argc, (char **)argv);
 624                 /* NOT REACHED */
 625         }
 626
 627         /* are we looking up the proxy configuration */
 628         if (doProxy) {
 629                 do_showProxyConfiguration(argc, (char **)argv);
 630                 /* NOT REACHED */
 631         }
 632
 633         /* are we changing a preference value */
 634         if (set) {
 635                 if (findPref(set) < 0) {
 636                         usage(prog);
 637                 }
 638                 do_setPref(set, argc, (char **)argv);
 639                 /* NOT REACHED */
 640         }
 641
 642         /* verbose log */
 643         if (log != NULL) {
 644                 if (strcasecmp(log, "IPMonitor")) {
 645                         usage(prog);
 646                 }
 647                 do_log(log, argc, (char * *)argv);
 648                 /* NOT REACHED */
 649         }
 650
 651 #if     !TARGET_OS_IPHONE
 652         /* allowNewInterfaces */
 653         if (allowNewInterfaces) {
 654                 do_ifnamer("allow-new-interfaces", argc, (char * *)argv);
 655                 /* NOT REACHED */
 656         }
 657 #endif  // !TARGET_OS_IPHONE
 658
 659         /* disableUntilNeeded */
 660         if (disableUntilNeeded) {
 661                 do_disable_until_needed(argc, (char * *)argv);
 662                 /* NOT REACHED */
 663         }
 664
 665         /* network connection commands */
 666         if (nc_cmd) {
 667                 if (find_nc_cmd(nc_cmd) < 0) {
 668                         usage(prog);
 669                 }
 670                 do_nc_cmd(nc_cmd, argc, (char **)argv, watch);
 671                 /* NOT REACHED */
 672         }
 673
 674         if (doNet) {
 675                 /* if we are going to be managing the network configuration */
 676                 commands  = (cmdInfo *)commands_net;
 677                 nCommands = nCommands_net;
 678
 679                 if (!getenv("ENABLE_EXPERIMENTAL_SCUTIL_COMMANDS")) {
 680                         usage(prog);
 681                 }
 682
 683                 do_net_init();                          /* initialization */
 684                 do_net_open(argc, (char **)argv);       /* open prefs */
 685         } else if (doPrefs) {
 686                 /* if we are going to be managing the network configuration */
 687                 commands  = (cmdInfo *)commands_prefs;
 688                 nCommands = nCommands_prefs;
 689
 690                 do_dictInit(0, NULL);                   /* start with an empty dictionary */
 691                 do_prefs_init();                        /* initialization */
 692                 do_prefs_open(argc, (char **)argv);     /* open prefs */
 693         } else {
 694                 /* if we are going to be managing the dynamic store */
 695                 commands  = (cmdInfo *)commands_store;
 696                 nCommands = nCommands_store;
 697
 698                 do_dictInit(0, NULL);   /* start with an empty dictionary */
 699                 do_open(0, NULL);       /* open the dynamic store */
 700         }
 701
 702         /* are we trying to renew a DHCP lease */
 703         if (renew != NULL) {
 704                 do_renew(renew);
 705                 /* NOT REACHED */
 706         }
 707
 708         /* allocate command input stream */
 709         src = (InputRef)CFAllocatorAllocate(NULL, sizeof(Input), 0);
 710         src->fp = stdin;
 711         src->el = NULL;
 712         src->h  = NULL;
 713
 714         if (isatty(fileno(src->fp))) {
 715                 int             editmode        = 1;
 716                 HistEvent       ev;
 717                 struct termios  t;
 718
 719                 if (tcgetattr(fileno(src->fp), &t) != -1) {
 720                         if ((t.c_lflag & ECHO) == 0) {
 721                                 editmode = 0;
 722                         }
 723                 }
 724                 src->el = el_init(prog, src->fp, stdout, stderr);
 725                 src->h  = history_init();
 726
 727                 (void)history(src->h, &ev, H_SETSIZE, INT_MAX);
 728                 el_set(src->el, EL_HIST, history, src->h);
 729
 730                 if (!editmode) {
 731                         el_set(src->el, EL_EDITMODE, 0);
 732                 }
 733
 734                 el_set(src->el, EL_EDITOR, "emacs");
 735                 el_set(src->el, EL_PROMPT, prompt);
 736
 737                 el_source(src->el, NULL);
 738
 739                 if ((el_get(src->el, EL_EDITMODE, &editmode) != -1) && editmode != 0) {
 740                         el_set(src->el, EL_SIGNAL, 1);
 741                 } else {
 742                         history_end(src->h);
 743                         src->h = NULL;
 744                         el_end(src->el);
 745                         src->el = NULL;
 746                 }
 747         }
 748
 749         while (TRUE) {
 750                 Boolean ok;
 751
 752                 ok = process_line(src);
 753                 if (!ok) {
 754                         break;
 755                 }
 756         }
 757
 758         /* close the socket, free resources */
 759         if (src->h)     history_end(src->h);
 760         if (src->el)    el_end(src->el);
 761         (void)fclose(src->fp);
 762         CFAllocatorDeallocate(NULL, src);
 763
 764         exit (EX_OK);   // insure the process exit status is 0
 765         return 0;       // ...and make main fit the ANSI spec.
 766 }