librpc/tools/ndrdump.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB torture tester
   4    Copyright (C) Andrew Tridgell 2003
   5    Copyright (C) Jelmer Vernooij 2006
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "system/locale.h"
  24 #include "librpc/ndr/libndr.h"
  25 #include "librpc/ndr/ndr_table.h"
  26 #include "librpc/gen_ndr/ndr_dcerpc.h"
  27 #include "lib/cmdline/popt_common.h"
  28 #include "param/param.h"
  29
  30 static const struct ndr_interface_call *find_function(
  31         const struct ndr_interface_table *p,
  32         const char *function)
  33 {
  34         int i;
  35         if (isdigit(function[0])) {
  36                 i = strtol(function, NULL, 0);
  37                 return &p->calls[i];
  38         }
  39         for (i=0;i<p->num_calls;i++) {
  40                 if (strcmp(p->calls[i].name, function) == 0) {
  41                         break;
  42                 }
  43         }
  44         if (i == p->num_calls) {
  45                 printf("Function '%s' not found\n", function);
  46                 exit(1);
  47         }
  48         return &p->calls[i];
  49 }
  50
  51 /*
  52  * Find a public structure on the pipe and return it as if it were
  53  * a function (as the rest of ndrdump is based around functions)
  54  */
  55 static const struct ndr_interface_call *find_struct(
  56         const struct ndr_interface_table *p,
  57         const char *struct_name,
  58         struct ndr_interface_call *out_buffer)
  59 {
  60         int i;
  61         for (i=0;i<p->num_public_structs;i++) {
  62                 if (strcmp(p->public_structs[i].name, struct_name) == 0) {
  63                         break;
  64                 }
  65         }
  66         if (i == p->num_public_structs) {
  67                 printf("Public structure '%s' not found\n", struct_name);
  68                 exit(1);
  69         }
  70         *out_buffer = (struct ndr_interface_call) {
  71                 .name = p->public_structs[i].name,
  72                 .struct_size = p->public_structs[i].struct_size,
  73                 .ndr_pull = p->public_structs[i].ndr_pull,
  74                 .ndr_push = p->public_structs[i].ndr_push,
  75                 .ndr_print = p->public_structs[i].ndr_print
  76         };
  77         return out_buffer;
  78 }
  79
  80 _NORETURN_ static void show_pipes(void)
  81 {
  82         const struct ndr_interface_list *l;
  83         printf("\nYou must specify a pipe\n");
  84         printf("known pipes are:\n");
  85         for (l=ndr_table_list();l;l=l->next) {
  86                 if(l->table->helpstring) {
  87                         printf("\t%s - %s\n", l->table->name, l->table->helpstring);
  88                 } else {
  89                         printf("\t%s\n", l->table->name);
  90                 }
  91         }
  92         exit(1);
  93 }
  94
  95 _NORETURN_ static void show_functions(const struct ndr_interface_table *p)
  96 {
  97         int i;
  98         printf("\nYou must specify a function\n");
  99         printf("known functions on '%s' are:\n", p->name);
 100         for (i=0;i<p->num_calls;i++) {
 101                 printf("\t0x%02x (%2d) %s\n", i, i, p->calls[i].name);
 102         }
 103         printf("known public structures on '%s' are:\n", p->name);
 104         for (i=0;i<p->num_public_structs;i++) {
 105                 printf("\t%s\n", p->public_structs[i].name);
 106         }
 107         exit(1);
 108 }
 109
 110 static char *stdin_load(TALLOC_CTX *mem_ctx, size_t *size)
 111 {
 112         int num_read, total_len = 0;
 113         char buf[255];
 114         char *result = NULL;
 115
 116         while((num_read = read(STDIN_FILENO, buf, 255)) > 0) {
 117
 118                 if (result) {
 119                         result = talloc_realloc(
 120                                 mem_ctx, result, char, total_len + num_read);
 121                 } else {
 122                         result = talloc_array(mem_ctx, char, num_read);
 123                 }
 124
 125                 memcpy(result + total_len, buf, num_read);
 126
 127                 total_len += num_read;
 128         }
 129
 130         if (size)
 131                 *size = total_len;
 132
 133         return result;
 134 }
 135
 136 static const struct ndr_interface_table *load_iface_from_plugin(const char *plugin, const char *pipe_name)
 137 {
 138         const struct ndr_interface_table *p;
 139         void *handle;
 140         char *symbol;
 141
 142         handle = dlopen(plugin, RTLD_NOW);
 143         if (handle == NULL) {
 144                 printf("%s: Unable to open: %s\n", plugin, dlerror());
 145                 return NULL;
 146         }
 147
 148         symbol = talloc_asprintf(NULL, "ndr_table_%s", pipe_name);
 149         p = (const struct ndr_interface_table *)dlsym(handle, symbol);
 150
 151         if (!p) {
 152                 printf("%s: Unable to find DCE/RPC interface table for '%s': %s\n", plugin, pipe_name, dlerror());
 153                 talloc_free(symbol);
 154                 dlclose(handle);
 155                 return NULL;
 156         }
 157
 158         talloc_free(symbol);
 159
 160         return p;
 161 }
 162
 163 static void ndrdump_data(uint8_t *d, uint32_t l, bool force)
 164 {
 165         dump_data_file(d, l, !force, stdout);
 166 }
 167
 168 static NTSTATUS ndrdump_pull_and_print_pipes(const char *function,
 169                                 struct ndr_pull *ndr_pull,
 170                                 struct ndr_print *ndr_print,
 171                                 const struct ndr_interface_call_pipes *pipes)
 172 {
 173         NTSTATUS status;
 174         enum ndr_err_code ndr_err;
 175         uint32_t i;
 176
 177         for (i=0; i < pipes->num_pipes; i++) {
 178                 uint64_t idx = 0;
 179                 while (true) {
 180                         void *saved_mem_ctx;
 181                         uint32_t *count;
 182                         void *c;
 183                         char *n;
 184
 185                         c = talloc_zero_size(ndr_pull, pipes->pipes[i].chunk_struct_size);
 186                         talloc_set_name(c, "struct %s", pipes->pipes[i].name);
 187                         /*
 188                          * Note: the first struct member is always
 189                          * 'uint32_t count;'
 190                          */
 191                         count = (uint32_t *)c;
 192
 193                         n = talloc_asprintf(c, "%s: %s[%llu]",
 194                                         function, pipes->pipes[i].name,
 195                                         (unsigned long long)idx);
 196
 197                         saved_mem_ctx = ndr_pull->current_mem_ctx;
 198                         ndr_pull->current_mem_ctx = c;
 199                         ndr_err = pipes->pipes[i].ndr_pull(ndr_pull, NDR_SCALARS, c);
 200                         ndr_pull->current_mem_ctx = saved_mem_ctx;
 201                         status = ndr_map_error2ntstatus(ndr_err);
 202
 203                         printf("pull returned %s\n", nt_errstr(status));
 204                         if (!NT_STATUS_IS_OK(status)) {
 205                                 talloc_free(c);
 206                                 return status;
 207                         }
 208                         pipes->pipes[i].ndr_print(ndr_print, n, c);
 209                         talloc_free(c);
 210                         if (*count == 0) {
 211                                 break;
 212                         }
 213                         idx++;
 214                 }
 215         }
 216
 217         return NT_STATUS_OK;
 218 }
 219
 220 static void ndr_print_dummy(struct ndr_print *ndr, const char *format, ...)
 221 {
 222         /* This is here so that you can turn ndr printing off for the purposes
 223            of benchmarking ndr parsing. */
 224 }
 225
 226  int main(int argc, const char *argv[])
 227 {
 228         const struct ndr_interface_table *p = NULL;
 229         const struct ndr_interface_call *f;
 230         struct ndr_interface_call f_buffer;
 231         const char *pipe_name = NULL;
 232         const char *filename = NULL;
 233         /*
 234          * The format type:
 235          *   in:     a request
 236          *   out:    a response
 237          *   struct: a public structure
 238          */
 239         const char *type = NULL;
 240         /*
 241          * Format is either the name of the decoding function or the
 242          * name of a public structure
 243          */
 244         const char *format = NULL;
 245         uint8_t *data;
 246         size_t size;
 247         DATA_BLOB blob;
 248         struct ndr_pull *ndr_pull;
 249         struct ndr_print *ndr_print;
 250         TALLOC_CTX *mem_ctx;
 251         int flags = 0;
 252         poptContext pc;
 253         NTSTATUS status;
 254         enum ndr_err_code ndr_err;
 255         void *st;
 256         void *v_st;
 257         const char *ctx_filename = NULL;
 258         const char *plugin = NULL;
 259         bool validate = false;
 260         bool dumpdata = false;
 261         bool assume_ndr64 = false;
 262         bool quiet = false;
 263         bool hex_input = false;
 264         int opt;
 265         enum {OPT_CONTEXT_FILE=1000, OPT_VALIDATE, OPT_DUMP_DATA, OPT_LOAD_DSO, OPT_NDR64, OPT_QUIET, OPT_HEX_INPUT};
 266         struct poptOption long_options[] = {
 267                 POPT_AUTOHELP
 268                 {"context-file", 'c', POPT_ARG_STRING, NULL, OPT_CONTEXT_FILE, "In-filename to parse first", "CTX-FILE" },
 269                 {"validate", 0, POPT_ARG_NONE, NULL, OPT_VALIDATE, "try to validate the data", NULL },
 270                 {"dump-data", 0, POPT_ARG_NONE, NULL, OPT_DUMP_DATA, "dump the hex data", NULL },
 271                 {"load-dso", 'l', POPT_ARG_STRING, NULL, OPT_LOAD_DSO, "load from shared object file", NULL },
 272                 {"ndr64", 0, POPT_ARG_NONE, NULL, OPT_NDR64, "Assume NDR64 data", NULL },
 273                 {"quiet", 0, POPT_ARG_NONE, NULL, OPT_QUIET, "Don't actually dump anything", NULL },
 274                 {"hex-input", 0, POPT_ARG_NONE, NULL, OPT_HEX_INPUT, "Read the input file in as a hex dump", NULL },
 275                 POPT_COMMON_SAMBA
 276                 POPT_COMMON_VERSION
 277                 { NULL }
 278         };
 279         uint32_t highest_ofs;
 280         struct dcerpc_sec_verification_trailer *sec_vt = NULL;
 281
 282         ndr_table_init();
 283
 284         /* Initialise samba stuff */
 285         smb_init_locale();
 286
 287         setlinebuf(stdout);
 288
 289         setup_logging("ndrdump", DEBUG_STDOUT);
 290
 291         pc = poptGetContext("ndrdump", argc, argv, long_options, 0);
 292
 293         poptSetOtherOptionHelp(
 294                 pc, "<pipe|uuid> <format> <in|out|struct> [<filename>]");
 295
 296         while ((opt = poptGetNextOpt(pc)) != -1) {
 297                 switch (opt) {
 298                 case OPT_CONTEXT_FILE:
 299                         ctx_filename = poptGetOptArg(pc);
 300                         break;
 301                 case OPT_VALIDATE:
 302                         validate = true;
 303                         break;
 304                 case OPT_DUMP_DATA:
 305                         dumpdata = true;
 306                         break;
 307                 case OPT_LOAD_DSO:
 308                         plugin = poptGetOptArg(pc);
 309                         break;
 310                 case OPT_NDR64:
 311                         assume_ndr64 = true;
 312                         break;
 313                 case OPT_QUIET:
 314                         quiet = true;
 315                         break;
 316                 case OPT_HEX_INPUT:
 317                         hex_input = true;
 318                         break;
 319                 }
 320         }
 321
 322         pipe_name = poptGetArg(pc);
 323
 324         if (!pipe_name) {
 325                 poptPrintUsage(pc, stderr, 0);
 326                 show_pipes();
 327                 exit(1);
 328         }
 329
 330         if (plugin != NULL) {
 331                 p = load_iface_from_plugin(plugin, pipe_name);
 332         }
 333         if (!p) {
 334                 p = ndr_table_by_name(pipe_name);
 335         }
 336
 337         if (!p) {
 338                 struct GUID uuid;
 339
 340                 status = GUID_from_string(pipe_name, &uuid);
 341
 342                 if (NT_STATUS_IS_OK(status)) {
 343                         p = ndr_table_by_uuid(&uuid);
 344                 }
 345         }
 346
 347         if (!p) {
 348                 printf("Unknown pipe or UUID '%s'\n", pipe_name);
 349                 exit(1);
 350         }
 351
 352         format = poptGetArg(pc);
 353         type = poptGetArg(pc);
 354         filename = poptGetArg(pc);
 355
 356         if (!format || !type) {
 357                 poptPrintUsage(pc, stderr, 0);
 358                 show_functions(p);
 359                 exit(1);
 360         }
 361
 362         if (strcmp(type, "struct") == 0) {
 363                 flags = 0; /* neither NDR_IN nor NDR_OUT */
 364                 f = find_struct(p, format, &f_buffer);
 365         } else {
 366                 f = find_function(p, format);
 367                 if (strcmp(type, "in") == 0 ||
 368                     strcmp(type, "request") == 0) {
 369                         flags |= NDR_IN;
 370                 } else if (strcmp(type, "out") == 0 ||
 371                            strcmp(type, "response") == 0) {
 372                         flags |= NDR_OUT;
 373                 } else {
 374                         printf("Bad type value '%s'\n", type);
 375                         exit(1);
 376                 }
 377         }
 378
 379
 380         mem_ctx = talloc_init("ndrdump");
 381
 382         st = talloc_zero_size(mem_ctx, f->struct_size);
 383         if (!st) {
 384                 printf("Unable to allocate %d bytes\n", (int)f->struct_size);
 385                 exit(1);
 386         }
 387
 388         v_st = talloc_zero_size(mem_ctx, f->struct_size);
 389         if (!v_st) {
 390                 printf("Unable to allocate %d bytes\n", (int)f->struct_size);
 391                 exit(1);
 392         }
 393
 394         if (ctx_filename) {
 395                 if (flags & NDR_IN) {
 396                         printf("Context file can only be used for \"out\" packages\n");
 397                         exit(1);
 398                 }
 399
 400                 data = (uint8_t *)file_load(ctx_filename, &size, 0, mem_ctx);
 401                 if (!data) {
 402                         perror(ctx_filename);
 403                         exit(1);
 404                 }
 405
 406                 blob.data = data;
 407                 blob.length = size;
 408
 409                 ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 410                 if (ndr_pull == NULL) {
 411                         perror("ndr_pull_init_blob");
 412                         exit(1);
 413                 }
 414                 ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 415                 if (assume_ndr64) {
 416                         ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 417                 }
 418
 419                 ndr_err = f->ndr_pull(ndr_pull, NDR_IN, st);
 420
 421                 if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 422                         highest_ofs = ndr_pull->offset;
 423                 } else {
 424                         highest_ofs = ndr_pull->relative_highest_offset;
 425                 }
 426
 427                 if (highest_ofs != ndr_pull->data_size) {
 428                         printf("WARNING! %d unread bytes while parsing context file\n", ndr_pull->data_size - highest_ofs);
 429                 }
 430
 431                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 432                         status = ndr_map_error2ntstatus(ndr_err);
 433                         printf("pull for context file returned %s\n", nt_errstr(status));
 434                         exit(1);
 435                 }
 436                 memcpy(v_st, st, f->struct_size);
 437         }
 438
 439         if (filename)
 440                 data = (uint8_t *)file_load(filename, &size, 0, mem_ctx);
 441         else
 442                 data = (uint8_t *)stdin_load(mem_ctx, &size);
 443
 444         if (!data) {
 445                 if (filename)
 446                         perror(filename);
 447                 else
 448                         perror("stdin");
 449                 exit(1);
 450         }
 451
 452         if (hex_input) {
 453                 blob = hexdump_to_data_blob(mem_ctx, (char *)data, size);
 454         } else {
 455                 blob.data = data;
 456                 blob.length = size;
 457         }
 458
 459         ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 460         if (ndr_pull == NULL) {
 461                 perror("ndr_pull_init_blob");
 462                 exit(1);
 463         }
 464         ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 465         if (assume_ndr64) {
 466                 ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 467         }
 468
 469         ndr_print = talloc_zero(mem_ctx, struct ndr_print);
 470         if (quiet) {
 471                 ndr_print->print = ndr_print_dummy;
 472         } else {
 473                 ndr_print->print = ndr_print_printf_helper;
 474         }
 475         ndr_print->depth = 1;
 476
 477         ndr_err = ndr_pop_dcerpc_sec_verification_trailer(ndr_pull, mem_ctx, &sec_vt);
 478         status = ndr_map_error2ntstatus(ndr_err);
 479         if (!NT_STATUS_IS_OK(status)) {
 480                 printf("ndr_pop_dcerpc_sec_verification_trailer returned %s\n",
 481                        nt_errstr(status));
 482         }
 483
 484         if (sec_vt != NULL && sec_vt->count.count > 0) {
 485                 printf("SEC_VT: consumed %d bytes\n",
 486                        (int)(blob.length - ndr_pull->data_size));
 487                 if (dumpdata) {
 488                         ndrdump_data(blob.data + ndr_pull->data_size,
 489                                      blob.length - ndr_pull->data_size,
 490                                      dumpdata);
 491                 }
 492                 ndr_print_dcerpc_sec_verification_trailer(ndr_print, "SEC_VT", sec_vt);
 493         }
 494         TALLOC_FREE(sec_vt);
 495
 496         if (flags & NDR_OUT) {
 497                 status = ndrdump_pull_and_print_pipes(format,
 498                                                       ndr_pull,
 499                                                       ndr_print,
 500                                                       &f->out_pipes);
 501                 if (!NT_STATUS_IS_OK(status)) {
 502                         printf("dump FAILED\n");
 503                         exit(1);
 504                 }
 505         }
 506
 507         ndr_err = f->ndr_pull(ndr_pull, flags, st);
 508         status = ndr_map_error2ntstatus(ndr_err);
 509
 510         printf("pull returned %s\n", nt_errstr(status));
 511
 512         if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 513                 highest_ofs = ndr_pull->offset;
 514         } else {
 515                 highest_ofs = ndr_pull->relative_highest_offset;
 516         }
 517
 518         if (highest_ofs != ndr_pull->data_size) {
 519                 printf("WARNING! %d unread bytes\n", ndr_pull->data_size - highest_ofs);
 520                 ndrdump_data(ndr_pull->data+highest_ofs,
 521                              ndr_pull->data_size - highest_ofs,
 522                              dumpdata);
 523         }
 524
 525         if (dumpdata) {
 526                 printf("%d bytes consumed\n", highest_ofs);
 527                 ndrdump_data(blob.data, blob.length, dumpdata);
 528         }
 529
 530         f->ndr_print(ndr_print, format, flags, st);
 531
 532         if (!NT_STATUS_IS_OK(status)) {
 533                 printf("dump FAILED\n");
 534                 exit(1);
 535         }
 536
 537         if (flags & NDR_IN) {
 538                 status = ndrdump_pull_and_print_pipes(format,
 539                                                       ndr_pull,
 540                                                       ndr_print,
 541                                                       &f->in_pipes);
 542                 if (!NT_STATUS_IS_OK(status)) {
 543                         printf("dump FAILED\n");
 544                         exit(1);
 545                 }
 546         }
 547
 548         if (validate) {
 549                 DATA_BLOB v_blob;
 550                 struct ndr_push *ndr_v_push;
 551                 struct ndr_pull *ndr_v_pull;
 552                 struct ndr_print *ndr_v_print;
 553                 uint32_t highest_v_ofs;
 554                 uint32_t i;
 555                 uint8_t byte_a, byte_b;
 556                 bool differ;
 557
 558                 ndr_v_push = ndr_push_init_ctx(mem_ctx);
 559                 if (ndr_v_push == NULL) {
 560                         printf("No memory\n");
 561                         exit(1);
 562                 }
 563
 564                 if (assume_ndr64) {
 565                         ndr_v_push->flags |= LIBNDR_FLAG_NDR64;
 566                 }
 567
 568                 ndr_err = f->ndr_push(ndr_v_push, flags, st);
 569                 status = ndr_map_error2ntstatus(ndr_err);
 570                 printf("push returned %s\n", nt_errstr(status));
 571                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 572                         printf("validate push FAILED\n");
 573                         exit(1);
 574                 }
 575
 576                 v_blob = ndr_push_blob(ndr_v_push);
 577
 578                 if (dumpdata) {
 579                         printf("%ld bytes generated (validate)\n", (long)v_blob.length);
 580                         ndrdump_data(v_blob.data, v_blob.length, dumpdata);
 581                 }
 582
 583                 ndr_v_pull = ndr_pull_init_blob(&v_blob, mem_ctx);
 584                 if (ndr_v_pull == NULL) {
 585                         perror("ndr_pull_init_blob");
 586                         exit(1);
 587                 }
 588                 ndr_v_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 589
 590                 ndr_err = f->ndr_pull(ndr_v_pull, flags, v_st);
 591                 status = ndr_map_error2ntstatus(ndr_err);
 592                 printf("pull returned %s\n", nt_errstr(status));
 593                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 594                         printf("validate pull FAILED\n");
 595                         exit(1);
 596                 }
 597
 598                 if (ndr_v_pull->offset > ndr_v_pull->relative_highest_offset) {
 599                         highest_v_ofs = ndr_v_pull->offset;
 600                 } else {
 601                         highest_v_ofs = ndr_v_pull->relative_highest_offset;
 602                 }
 603
 604                 if (highest_v_ofs != ndr_v_pull->data_size) {
 605                         printf("WARNING! %d unread bytes in validation\n",
 606                                ndr_v_pull->data_size - highest_v_ofs);
 607                         ndrdump_data(ndr_v_pull->data + highest_v_ofs,
 608                                      ndr_v_pull->data_size - highest_v_ofs,
 609                                      dumpdata);
 610                 }
 611
 612                 ndr_v_print = talloc_zero(mem_ctx, struct ndr_print);
 613                 ndr_v_print->print = ndr_print_debug_helper;
 614                 ndr_v_print->depth = 1;
 615                 f->ndr_print(ndr_v_print,
 616                              format,
 617                              flags, v_st);
 618
 619                 if (blob.length != v_blob.length) {
 620                         printf("WARNING! orig bytes:%llu validated pushed bytes:%llu\n",
 621                                (unsigned long long)blob.length, (unsigned long long)v_blob.length);
 622                 }
 623
 624                 if (highest_ofs != highest_v_ofs) {
 625                         printf("WARNING! orig pulled bytes:%llu validated pulled bytes:%llu\n",
 626                                (unsigned long long)highest_ofs, (unsigned long long)highest_v_ofs);
 627                 }
 628
 629                 differ = false;
 630                 byte_a = 0x00;
 631                 byte_b = 0x00;
 632                 for (i=0; i < blob.length; i++) {
 633                         byte_a = blob.data[i];
 634
 635                         if (i == v_blob.length) {
 636                                 byte_b = 0x00;
 637                                 differ = true;
 638                                 break;
 639                         }
 640
 641                         byte_b = v_blob.data[i];
 642
 643                         if (byte_a != byte_b) {
 644                                 differ = true;
 645                                 break;
 646                         }
 647                 }
 648                 if (differ) {
 649                         printf("WARNING! orig and validated differ at byte 0x%02X (%u)\n", i, i);
 650                         printf("WARNING! orig byte[0x%02X] = 0x%02X validated byte[0x%02X] = 0x%02X\n",
 651                                 i, byte_a, i, byte_b);
 652                 }
 653         }
 654
 655         printf("dump OK\n");
 656         talloc_free(mem_ctx);
 657
 658         poptFreeContext(pc);
 659
 660         return 0;
 661 }