apps/srp.c

   1 /*
   2  * Written by Peter Sylvester (peter.sylvester@edelweb.fr) for the EdelKey
   3  * project and contributed to the OpenSSL project 2004.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <openssl/opensslconf.h>
  60 #ifdef OPENSSL_NO_SRP
  61 NON_EMPTY_TRANSLATION_UNIT
  62 #else
  63
  64 # include <stdio.h>
  65 # include <stdlib.h>
  66 # include <string.h>
  67 # include <openssl/conf.h>
  68 # include <openssl/bio.h>
  69 # include <openssl/err.h>
  70 # include <openssl/txt_db.h>
  71 # include <openssl/buffer.h>
  72 # include <openssl/srp.h>
  73 # include "apps.h"
  74
  75 # define BASE_SECTION    "srp"
  76 # define CONFIG_FILE "openssl.cnf"
  77
  78 # define ENV_RANDFILE            "RANDFILE"
  79
  80 # define ENV_DATABASE            "srpvfile"
  81 # define ENV_DEFAULT_SRP         "default_srp"
  82
  83 static int get_index(CA_DB *db, char *id, char type)
  84 {
  85     char **pp;
  86     int i;
  87     if (id == NULL)
  88         return -1;
  89     if (type == DB_SRP_INDEX)
  90         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
  91             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
  92             if (pp[DB_srptype][0] == DB_SRP_INDEX
  93                 && strcmp(id, pp[DB_srpid]) == 0)
  94                 return i;
  95     } else
  96         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
  97             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
  98
  99             if (pp[DB_srptype][0] != DB_SRP_INDEX
 100                 && strcmp(id, pp[DB_srpid]) == 0)
 101                 return i;
 102         }
 103
 104     return -1;
 105 }
 106
 107 static void print_entry(CA_DB *db, int indx, int verbose, char *s)
 108 {
 109     if (indx >= 0 && verbose) {
 110         int j;
 111         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
 112         BIO_printf(bio_err, "%s \"%s\"\n", s, pp[DB_srpid]);
 113         for (j = 0; j < DB_NUMBER; j++) {
 114             BIO_printf(bio_err, "  %d = \"%s\"\n", j, pp[j]);
 115         }
 116     }
 117 }
 118
 119 static void print_index(CA_DB *db, int indexindex, int verbose)
 120 {
 121     print_entry(db, indexindex, verbose, "g N entry");
 122 }
 123
 124 static void print_user(CA_DB *db, int userindex, int verbose)
 125 {
 126     if (verbose > 0) {
 127         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 128
 129         if (pp[DB_srptype][0] != 'I') {
 130             print_entry(db, userindex, verbose, "User entry");
 131             print_entry(db, get_index(db, pp[DB_srpgN], 'I'), verbose,
 132                         "g N entry");
 133         }
 134
 135     }
 136 }
 137
 138 static int update_index(CA_DB *db, char **row)
 139 {
 140     char **irow;
 141     int i;
 142
 143     irow = app_malloc(sizeof(*irow) * (DB_NUMBER + 1), "row pointers");
 144     for (i = 0; i < DB_NUMBER; i++) {
 145         irow[i] = row[i];
 146         row[i] = NULL;
 147     }
 148     irow[DB_NUMBER] = NULL;
 149
 150     if (!TXT_DB_insert(db->db, irow)) {
 151         BIO_printf(bio_err, "failed to update srpvfile\n");
 152         BIO_printf(bio_err, "TXT_DB error number %ld\n", db->db->error);
 153         OPENSSL_free(irow);
 154         return 0;
 155     }
 156     return 1;
 157 }
 158
 159 static void lookup_fail(const char *name, const char *tag)
 160 {
 161     BIO_printf(bio_err, "variable lookup failed for %s::%s\n", name, tag);
 162 }
 163
 164 static char *srp_verify_user(const char *user, const char *srp_verifier,
 165                              char *srp_usersalt, const char *g, const char *N,
 166                              const char *passin, int verbose)
 167 {
 168     char password[1024];
 169     PW_CB_DATA cb_tmp;
 170     char *verifier = NULL;
 171     char *gNid = NULL;
 172
 173     cb_tmp.prompt_info = user;
 174     cb_tmp.password = passin;
 175
 176     if (password_callback(password, 1024, 0, &cb_tmp) > 0) {
 177         if (verbose)
 178             BIO_printf(bio_err,
 179                        "Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 180                        user, srp_verifier, srp_usersalt, g, N);
 181         BIO_printf(bio_err, "Pass %s\n", password);
 182
 183         OPENSSL_assert(srp_usersalt != NULL);
 184         if (!
 185             (gNid =
 186              SRP_create_verifier(user, password, &srp_usersalt, &verifier, N,
 187                                  g))) {
 188             BIO_printf(bio_err, "Internal error validating SRP verifier\n");
 189         } else {
 190             if (strcmp(verifier, srp_verifier))
 191                 gNid = NULL;
 192             OPENSSL_free(verifier);
 193         }
 194     }
 195     return gNid;
 196 }
 197
 198 static char *srp_create_user(char *user, char **srp_verifier,
 199                              char **srp_usersalt, char *g, char *N,
 200                              char *passout, int verbose)
 201 {
 202     char password[1024];
 203     PW_CB_DATA cb_tmp;
 204     char *gNid = NULL;
 205     char *salt = NULL;
 206     cb_tmp.prompt_info = user;
 207     cb_tmp.password = passout;
 208
 209     if (password_callback(password, 1024, 1, &cb_tmp) > 0) {
 210         if (verbose)
 211             BIO_printf(bio_err, "Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 212                        user, g, N);
 213         if (!
 214             (gNid =
 215              SRP_create_verifier(user, password, &salt, srp_verifier, N,
 216                                  g))) {
 217             BIO_printf(bio_err, "Internal error creating SRP verifier\n");
 218         } else
 219             *srp_usersalt = salt;
 220         if (verbose > 1)
 221             BIO_printf(bio_err, "gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,
 222                        salt, *srp_verifier);
 223
 224     }
 225     return gNid;
 226 }
 227
 228 typedef enum OPTION_choice {
 229     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 230     OPT_VERBOSE, OPT_CONFIG, OPT_NAME, OPT_SRPVFILE, OPT_ADD,
 231     OPT_DELETE, OPT_MODIFY, OPT_LIST, OPT_GN, OPT_USERINFO,
 232     OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE
 233 } OPTION_CHOICE;
 234
 235 OPTIONS srp_options[] = {
 236     {"help", OPT_HELP, '-', "Display this summary"},
 237     {"verbose", OPT_VERBOSE, '-', "Talk a lot while doing things"},
 238     {"config", OPT_CONFIG, '<', "A config file"},
 239     {"name", OPT_NAME, 's', "The particular srp definition to use"},
 240     {"srpvfile", OPT_SRPVFILE, '<', "The srp verifier file name"},
 241     {"add", OPT_ADD, '-', "Add a user and srp verifier"},
 242     {"modify", OPT_MODIFY, '-',
 243      "Modify the srp verifier of an existing user"},
 244     {"delete", OPT_DELETE, '-', "Delete user from verifier file"},
 245     {"list", OPT_LIST, '-', "List users"},
 246     {"gn", OPT_GN, 's', "Set g and N values to be used for new verifier"},
 247     {"userinfo", OPT_USERINFO, 's', "Additional info to be set for user"},
 248     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 249     {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
 250 # ifndef OPENSSL_NO_ENGINE
 251     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 252 # endif
 253     {NULL}
 254 };
 255
 256 int srp_main(int argc, char **argv)
 257 {
 258     CA_DB *db = NULL;
 259     CONF *conf = NULL;
 260     int gNindex = -1, maxgN = -1, ret = 1, errors = 0, verbose = 0, i;
 261     int doupdatedb = 0, mode = OPT_ERR;
 262     char *user = NULL, *passinarg = NULL, *passoutarg = NULL;
 263     char *passin = NULL, *passout = NULL, *gN = NULL, *userinfo = NULL;
 264     char *randfile = NULL, *tofree = NULL, *section = NULL;
 265     char **gNrow = NULL, *configfile = NULL;
 266     char *srpvfile = NULL, **pp, *prog;
 267     OPTION_CHOICE o;
 268
 269     prog = opt_init(argc, argv, srp_options);
 270     while ((o = opt_next()) != OPT_EOF) {
 271         switch (o) {
 272         case OPT_EOF:
 273         case OPT_ERR:
 274  opthelp:
 275             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 276             goto end;
 277         case OPT_HELP:
 278             opt_help(srp_options);
 279             ret = 0;
 280             goto end;
 281         case OPT_VERBOSE:
 282             verbose++;
 283             break;
 284         case OPT_CONFIG:
 285             configfile = opt_arg();
 286             break;
 287         case OPT_NAME:
 288             section = opt_arg();
 289             break;
 290         case OPT_SRPVFILE:
 291             srpvfile = opt_arg();
 292             break;
 293         case OPT_ADD:
 294         case OPT_DELETE:
 295         case OPT_MODIFY:
 296         case OPT_LIST:
 297             if (mode != OPT_ERR) {
 298                 BIO_printf(bio_err,
 299                            "%s: Only one of -add/delete-modify/-list\n",
 300                            prog);
 301                 goto opthelp;
 302             }
 303             mode = o;
 304             break;
 305         case OPT_GN:
 306             gN = opt_arg();
 307             break;
 308         case OPT_USERINFO:
 309             userinfo = opt_arg();
 310             break;
 311         case OPT_PASSIN:
 312             passinarg = opt_arg();
 313             break;
 314         case OPT_PASSOUT:
 315             passoutarg = opt_arg();
 316             break;
 317         case OPT_ENGINE:
 318             (void)setup_engine(opt_arg(), 0);
 319             break;
 320         }
 321     }
 322     argc = opt_num_rest();
 323     argv = opt_rest();
 324
 325     if (srpvfile && configfile) {
 326         BIO_printf(bio_err,
 327                    "-srpvfile and -configfile cannot be specified together.\n");
 328         goto end;
 329     }
 330     if (mode == OPT_ERR) {
 331         BIO_printf(bio_err,
 332                    "Exactly one of the options -add, -delete, -modify -list must be specified.\n");
 333         goto opthelp;
 334     }
 335     if ((mode == OPT_DELETE || mode == OPT_MODIFY || mode == OPT_ADD)
 336         && argc < 1) {
 337         BIO_printf(bio_err,
 338                    "Need at least one user for options -add, -delete, -modify. \n");
 339         goto opthelp;
 340     }
 341     if ((passin || passout) && argc != 1) {
 342         BIO_printf(bio_err,
 343                    "-passin, -passout arguments only valid with one user.\n");
 344         goto opthelp;
 345     }
 346
 347     if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
 348         BIO_printf(bio_err, "Error getting passwords\n");
 349         goto end;
 350     }
 351
 352     if (!srpvfile) {
 353         if (!configfile)
 354             configfile = default_config_file;
 355
 356         if (verbose)
 357             BIO_printf(bio_err, "Using configuration from %s\n",
 358                        configfile);
 359         conf = app_load_config(configfile);
 360         if (conf == NULL)
 361             goto end;
 362         if (!app_load_modules(conf))
 363             goto end;
 364
 365         /* Lets get the config section we are using */
 366         if (section == NULL) {
 367             if (verbose)
 368                 BIO_printf(bio_err,
 369                            "trying to read " ENV_DEFAULT_SRP
 370                            " in " BASE_SECTION "\n");
 371
 372             section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_SRP);
 373             if (section == NULL) {
 374                 lookup_fail(BASE_SECTION, ENV_DEFAULT_SRP);
 375                 goto end;
 376             }
 377         }
 378
 379         if (randfile == NULL && conf)
 380             randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
 381
 382         if (verbose)
 383             BIO_printf(bio_err,
 384                        "trying to read " ENV_DATABASE " in section \"%s\"\n",
 385                        section);
 386
 387         if ((srpvfile = NCONF_get_string(conf, section, ENV_DATABASE))
 388                 == NULL) {
 389             lookup_fail(section, ENV_DATABASE);
 390             goto end;
 391         }
 392
 393     }
 394     if (randfile == NULL)
 395         ERR_clear_error();
 396     else
 397         app_RAND_load_file(randfile, 0);
 398
 399     if (verbose)
 400         BIO_printf(bio_err, "Trying to read SRP verifier file \"%s\"\n",
 401                    srpvfile);
 402
 403     db = load_index(srpvfile, NULL);
 404     if (db == NULL)
 405         goto end;
 406
 407     /* Lets check some fields */
 408     for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 409         pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 410
 411         if (pp[DB_srptype][0] == DB_SRP_INDEX) {
 412             maxgN = i;
 413             if ((gNindex < 0) && (gN != NULL) && strcmp(gN, pp[DB_srpid]) == 0)
 414                 gNindex = i;
 415
 416             print_index(db, i, verbose > 1);
 417         }
 418     }
 419
 420     if (verbose)
 421         BIO_printf(bio_err, "Database initialised\n");
 422
 423     if (gNindex >= 0) {
 424         gNrow = sk_OPENSSL_PSTRING_value(db->db->data, gNindex);
 425         print_entry(db, gNindex, verbose > 1, "Default g and N");
 426     } else if (maxgN > 0 && !SRP_get_default_gN(gN)) {
 427         BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
 428         goto end;
 429     } else {
 430         if (verbose)
 431             BIO_printf(bio_err, "Database has no g N information.\n");
 432         gNrow = NULL;
 433     }
 434
 435     if (verbose > 1)
 436         BIO_printf(bio_err, "Starting user processing\n");
 437
 438     if (argc > 0)
 439         user = *(argv++);
 440
 441     while (mode == OPT_LIST || user) {
 442         int userindex = -1;
 443         if (user)
 444             if (verbose > 1)
 445                 BIO_printf(bio_err, "Processing user \"%s\"\n", user);
 446         if ((userindex = get_index(db, user, 'U')) >= 0) {
 447             print_user(db, userindex, (verbose > 0)
 448                        || mode == OPT_LIST);
 449         }
 450
 451         if (mode == OPT_LIST) {
 452             if (user == NULL) {
 453                 BIO_printf(bio_err, "List all users\n");
 454
 455                 for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 456                     print_user(db, i, 1);
 457                 }
 458             } else if (userindex < 0) {
 459                 BIO_printf(bio_err,
 460                            "user \"%s\" does not exist, ignored. t\n", user);
 461                 errors++;
 462             }
 463         } else if (mode == OPT_ADD) {
 464             if (userindex >= 0) {
 465                 /* reactivation of a new user */
 466                 char **row =
 467                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 468                 BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
 469                 row[DB_srptype][0] = 'V';
 470
 471                 doupdatedb = 1;
 472             } else {
 473                 char *row[DB_NUMBER];
 474                 char *gNid;
 475                 row[DB_srpverifier] = NULL;
 476                 row[DB_srpsalt] = NULL;
 477                 row[DB_srpinfo] = NULL;
 478                 if (!
 479                     (gNid =
 480                      srp_create_user(user, &(row[DB_srpverifier]),
 481                                      &(row[DB_srpsalt]),
 482                                      gNrow ? gNrow[DB_srpsalt] : gN,
 483                                      gNrow ? gNrow[DB_srpverifier] : NULL,
 484                                      passout, verbose))) {
 485                     BIO_printf(bio_err,
 486                                "Cannot create srp verifier for user \"%s\", operation abandoned .\n",
 487                                user);
 488                     errors++;
 489                     goto end;
 490                 }
 491                 row[DB_srpid] = OPENSSL_strdup(user);
 492                 row[DB_srptype] = OPENSSL_strdup("v");
 493                 row[DB_srpgN] = OPENSSL_strdup(gNid);
 494
 495                 if ((row[DB_srpid] == NULL)
 496                     || (row[DB_srpgN] == NULL)
 497                     || (row[DB_srptype] == NULL)
 498                     || (row[DB_srpverifier] == NULL)
 499                     || (row[DB_srpsalt] == NULL)
 500                     || (userinfo
 501                         && ((row[DB_srpinfo] = OPENSSL_strdup(userinfo)) == NULL))
 502                     || !update_index(db, row)) {
 503                     OPENSSL_free(row[DB_srpid]);
 504                     OPENSSL_free(row[DB_srpgN]);
 505                     OPENSSL_free(row[DB_srpinfo]);
 506                     OPENSSL_free(row[DB_srptype]);
 507                     OPENSSL_free(row[DB_srpverifier]);
 508                     OPENSSL_free(row[DB_srpsalt]);
 509                     goto end;
 510                 }
 511                 doupdatedb = 1;
 512             }
 513         } else if (mode == OPT_MODIFY) {
 514             if (userindex < 0) {
 515                 BIO_printf(bio_err,
 516                            "user \"%s\" does not exist, operation ignored.\n",
 517                            user);
 518                 errors++;
 519             } else {
 520
 521                 char **row =
 522                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 523                 char type = row[DB_srptype][0];
 524                 if (type == 'v') {
 525                     BIO_printf(bio_err,
 526                                "user \"%s\" already updated, operation ignored.\n",
 527                                user);
 528                     errors++;
 529                 } else {
 530                     char *gNid;
 531
 532                     if (row[DB_srptype][0] == 'V') {
 533                         int user_gN;
 534                         char **irow = NULL;
 535                         if (verbose)
 536                             BIO_printf(bio_err,
 537                                        "Verifying password for user \"%s\"\n",
 538                                        user);
 539                         if ((user_gN =
 540                              get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
 541                             irow =
 542                                 sk_OPENSSL_PSTRING_value(db->db->data,
 543                                                          userindex);
 544
 545                         if (!srp_verify_user
 546                             (user, row[DB_srpverifier], row[DB_srpsalt],
 547                              irow ? irow[DB_srpsalt] : row[DB_srpgN],
 548                              irow ? irow[DB_srpverifier] : NULL, passin,
 549                              verbose)) {
 550                             BIO_printf(bio_err,
 551                                        "Invalid password for user \"%s\", operation abandoned.\n",
 552                                        user);
 553                             errors++;
 554                             goto end;
 555                         }
 556                     }
 557                     if (verbose)
 558                         BIO_printf(bio_err, "Password for user \"%s\" ok.\n",
 559                                    user);
 560
 561                     if (!
 562                         (gNid =
 563                          srp_create_user(user, &(row[DB_srpverifier]),
 564                                          &(row[DB_srpsalt]),
 565                                          gNrow ? gNrow[DB_srpsalt] : NULL,
 566                                          gNrow ? gNrow[DB_srpverifier] : NULL,
 567                                          passout, verbose))) {
 568                         BIO_printf(bio_err,
 569                                    "Cannot create srp verifier for user \"%s\", operation abandoned.\n",
 570                                    user);
 571                         errors++;
 572                         goto end;
 573                     }
 574
 575                     row[DB_srptype][0] = 'v';
 576                     row[DB_srpgN] = OPENSSL_strdup(gNid);
 577
 578                     if (row[DB_srpid] == NULL
 579                         || row[DB_srpgN] == NULL
 580                         || row[DB_srptype] == NULL
 581                         || row[DB_srpverifier] == NULL
 582                         || row[DB_srpsalt] == NULL
 583                         || (userinfo
 584                             && ((row[DB_srpinfo] = OPENSSL_strdup(userinfo))
 585                                 == NULL)))
 586                         goto end;
 587
 588                     doupdatedb = 1;
 589                 }
 590             }
 591         } else if (mode == OPT_DELETE) {
 592             if (userindex < 0) {
 593                 BIO_printf(bio_err,
 594                            "user \"%s\" does not exist, operation ignored. t\n",
 595                            user);
 596                 errors++;
 597             } else {
 598                 char **xpp = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 599
 600                 BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
 601                 xpp[DB_srptype][0] = 'R';
 602                 doupdatedb = 1;
 603             }
 604         }
 605         if (--argc > 0)
 606             user = *(argv++);
 607         else {
 608             user = NULL;
 609         }
 610     }
 611
 612     if (verbose)
 613         BIO_printf(bio_err, "User procession done.\n");
 614
 615     if (doupdatedb) {
 616         /* Lets check some fields */
 617         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 618             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 619
 620             if (pp[DB_srptype][0] == 'v') {
 621                 pp[DB_srptype][0] = 'V';
 622                 print_user(db, i, verbose);
 623             }
 624         }
 625
 626         if (verbose)
 627             BIO_printf(bio_err, "Trying to update srpvfile.\n");
 628         if (!save_index(srpvfile, "new", db))
 629             goto end;
 630
 631         if (verbose)
 632             BIO_printf(bio_err, "Temporary srpvfile created.\n");
 633         if (!rotate_index(srpvfile, "new", "old"))
 634             goto end;
 635
 636         if (verbose)
 637             BIO_printf(bio_err, "srpvfile updated.\n");
 638     }
 639
 640     ret = (errors != 0);
 641  end:
 642     if (errors != 0)
 643         if (verbose)
 644             BIO_printf(bio_err, "User errors %d.\n", errors);
 645
 646     if (verbose)
 647         BIO_printf(bio_err, "SRP terminating with code %d.\n", ret);
 648     OPENSSL_free(tofree);
 649     if (ret)
 650         ERR_print_errors(bio_err);
 651     if (randfile)
 652         app_RAND_write_file(randfile);
 653     NCONF_free(conf);
 654     free_index(db);
 655     return (ret);
 656 }
 657 #endif