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 #include <openssl/opensslconf.h>
  59
  60 #ifndef OPENSSL_NO_SRP
  61 # include <stdio.h>
  62 # include <stdlib.h>
  63 # include <string.h>
  64 # include <openssl/conf.h>
  65 # include <openssl/bio.h>
  66 # include <openssl/err.h>
  67 # include <openssl/txt_db.h>
  68 # include <openssl/buffer.h>
  69 # include <openssl/srp.h>
  70
  71 # include "apps.h"
  72
  73 # define BASE_SECTION    "srp"
  74 # define CONFIG_FILE "openssl.cnf"
  75
  76 # define ENV_RANDFILE            "RANDFILE"
  77
  78 # define ENV_DATABASE            "srpvfile"
  79 # define ENV_DEFAULT_SRP         "default_srp"
  80
  81 static int get_index(CA_DB *db, char *id, char type)
  82 {
  83     char **pp;
  84     int i;
  85     if (id == NULL)
  86         return -1;
  87     if (type == DB_SRP_INDEX)
  88         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
  89             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
  90             if (pp[DB_srptype][0] == DB_SRP_INDEX
  91                 && strcmp(id, pp[DB_srpid]) == 0)
  92                 return i;
  93     } else
  94         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
  95             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
  96
  97             if (pp[DB_srptype][0] != DB_SRP_INDEX
  98                 && strcmp(id, pp[DB_srpid]) == 0)
  99                 return i;
 100         }
 101
 102     return -1;
 103 }
 104
 105 static void print_entry(CA_DB *db, int indx, int verbose, char *s)
 106 {
 107     if (indx >= 0 && verbose) {
 108         int j;
 109         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
 110         BIO_printf(bio_err, "%s \"%s\"\n", s, pp[DB_srpid]);
 111         for (j = 0; j < DB_NUMBER; j++) {
 112             BIO_printf(bio_err, "  %d = \"%s\"\n", j, pp[j]);
 113         }
 114     }
 115 }
 116
 117 static void print_index(CA_DB *db, int indexindex, int verbose)
 118 {
 119     print_entry(db, indexindex, verbose, "g N entry");
 120 }
 121
 122 static void print_user(CA_DB *db, int userindex, int verbose)
 123 {
 124     if (verbose > 0) {
 125         char **pp = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 126
 127         if (pp[DB_srptype][0] != 'I') {
 128             print_entry(db, userindex, verbose, "User entry");
 129             print_entry(db, get_index(db, pp[DB_srpgN], 'I'), verbose,
 130                         "g N entry");
 131         }
 132
 133     }
 134 }
 135
 136 static int update_index(CA_DB *db, char **row)
 137 {
 138     char **irow;
 139     int i;
 140
 141     irow = app_malloc(sizeof(*irow) * (DB_NUMBER + 1), "row pointers");
 142     for (i = 0; i < DB_NUMBER; i++) {
 143         irow[i] = row[i];
 144         row[i] = NULL;
 145     }
 146     irow[DB_NUMBER] = NULL;
 147
 148     if (!TXT_DB_insert(db->db, irow)) {
 149         BIO_printf(bio_err, "failed to update srpvfile\n");
 150         BIO_printf(bio_err, "TXT_DB error number %ld\n", db->db->error);
 151         OPENSSL_free(irow);
 152         return 0;
 153     }
 154     return 1;
 155 }
 156
 157 static void lookup_fail(const char *name, const char *tag)
 158 {
 159     BIO_printf(bio_err, "variable lookup failed for %s::%s\n", name, tag);
 160 }
 161
 162 static char *srp_verify_user(const char *user, const char *srp_verifier,
 163                              char *srp_usersalt, const char *g, const char *N,
 164                              const char *passin, int verbose)
 165 {
 166     char password[1024];
 167     PW_CB_DATA cb_tmp;
 168     char *verifier = NULL;
 169     char *gNid = NULL;
 170
 171     cb_tmp.prompt_info = user;
 172     cb_tmp.password = passin;
 173
 174     if (password_callback(password, 1024, 0, &cb_tmp) > 0) {
 175         if (verbose)
 176             BIO_printf(bio_err,
 177                        "Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 178                        user, srp_verifier, srp_usersalt, g, N);
 179         BIO_printf(bio_err, "Pass %s\n", password);
 180
 181         OPENSSL_assert(srp_usersalt != NULL);
 182         if (!
 183             (gNid =
 184              SRP_create_verifier(user, password, &srp_usersalt, &verifier, N,
 185                                  g))) {
 186             BIO_printf(bio_err, "Internal error validating SRP verifier\n");
 187         } else {
 188             if (strcmp(verifier, srp_verifier))
 189                 gNid = NULL;
 190             OPENSSL_free(verifier);
 191         }
 192     }
 193     return gNid;
 194 }
 195
 196 static char *srp_create_user(char *user, char **srp_verifier,
 197                              char **srp_usersalt, char *g, char *N,
 198                              char *passout, int verbose)
 199 {
 200     char password[1024];
 201     PW_CB_DATA cb_tmp;
 202     char *gNid = NULL;
 203     char *salt = NULL;
 204     cb_tmp.prompt_info = user;
 205     cb_tmp.password = passout;
 206
 207     if (password_callback(password, 1024, 1, &cb_tmp) > 0) {
 208         if (verbose)
 209             BIO_printf(bio_err, "Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
 210                        user, g, N);
 211         if (!
 212             (gNid =
 213              SRP_create_verifier(user, password, &salt, srp_verifier, N,
 214                                  g))) {
 215             BIO_printf(bio_err, "Internal error creating SRP verifier\n");
 216         } else
 217             *srp_usersalt = salt;
 218         if (verbose > 1)
 219             BIO_printf(bio_err, "gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,
 220                        salt, *srp_verifier);
 221
 222     }
 223     return gNid;
 224 }
 225
 226 typedef enum OPTION_choice {
 227     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 228     OPT_VERBOSE, OPT_CONFIG, OPT_NAME, OPT_SRPVFILE, OPT_ADD,
 229     OPT_DELETE, OPT_MODIFY, OPT_LIST, OPT_GN, OPT_USERINFO,
 230     OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE
 231 } OPTION_CHOICE;
 232
 233 OPTIONS srp_options[] = {
 234     {"help", OPT_HELP, '-', "Display this summary"},
 235     {"verbose", OPT_VERBOSE, '-', "Talk a lot while doing things"},
 236     {"config", OPT_CONFIG, '<', "A config file"},
 237     {"name", OPT_NAME, 's', "The particular srp definition to use"},
 238     {"srpvfile", OPT_SRPVFILE, '<', "The srp verifier file name"},
 239     {"add", OPT_ADD, '-', "Add a user and srp verifier"},
 240     {"modify", OPT_MODIFY, '-',
 241      "Modify the srp verifier of an existing user"},
 242     {"delete", OPT_DELETE, '-', "Delete user from verifier file"},
 243     {"list", OPT_LIST, '-', "List users"},
 244     {"gn", OPT_GN, 's', "Set g and N values to be used for new verifier"},
 245     {"userinfo", OPT_USERINFO, 's', "Additional info to be set for user"},
 246     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 247     {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
 248 # ifndef OPENSSL_NO_ENGINE
 249     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 250 # endif
 251     {NULL}
 252 };
 253
 254 int srp_main(int argc, char **argv)
 255 {
 256     CA_DB *db = NULL;
 257     DB_ATTR db_attr;
 258     CONF *conf = NULL;
 259     int gNindex = -1, maxgN = -1, ret = 1, errors = 0, verbose =
 260         0, i, doupdatedb = 0;
 261     int 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, *dbfile = NULL, **pp, *prog;
 266     long errorline = -1;
 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             dbfile = 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 (dbfile && configfile) {
 326         BIO_printf(bio_err,
 327                    "-dbfile 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 (!dbfile) {
 353
 354         /*****************************************************************/
 355         tofree = NULL;
 356         if (configfile == NULL)
 357             configfile = getenv("OPENSSL_CONF");
 358         if (configfile == NULL)
 359             configfile = getenv("SSLEAY_CONF");
 360         if (configfile == NULL) {
 361             const char *s = X509_get_default_cert_area();
 362             size_t len = strlen(s) + 1 + sizeof(CONFIG_FILE);
 363
 364             tofree = app_malloc(len, "config filename space");
 365 # ifdef OPENSSL_SYS_VMS
 366             strcpy(tofree, s);
 367 # else
 368             BUF_strlcpy(tofree, s, len);
 369             BUF_strlcat(tofree, "/", len);
 370 # endif
 371             BUF_strlcat(tofree, CONFIG_FILE, len);
 372             configfile = tofree;
 373         }
 374
 375         if (verbose)
 376             BIO_printf(bio_err, "Using configuration from %s\n", configfile);
 377         conf = NCONF_new(NULL);
 378         if (NCONF_load(conf, configfile, &errorline) <= 0) {
 379             if (errorline <= 0)
 380                 BIO_printf(bio_err, "error loading the config file '%s'\n",
 381                            configfile);
 382             else
 383                 BIO_printf(bio_err, "error on line %ld of config file '%s'\n",
 384                            errorline, configfile);
 385             goto end;
 386         }
 387         OPENSSL_free(tofree);
 388         tofree = NULL;
 389
 390         /* Lets get the config section we are using */
 391         if (section == NULL) {
 392             if (verbose)
 393                 BIO_printf(bio_err,
 394                            "trying to read " ENV_DEFAULT_SRP
 395                            " in \" BASE_SECTION \"\n");
 396
 397             section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_SRP);
 398             if (section == NULL) {
 399                 lookup_fail(BASE_SECTION, ENV_DEFAULT_SRP);
 400                 goto end;
 401             }
 402         }
 403
 404         if (randfile == NULL && conf)
 405             randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
 406
 407         if (verbose)
 408             BIO_printf(bio_err,
 409                        "trying to read " ENV_DATABASE " in section \"%s\"\n",
 410                        section);
 411
 412         if ((dbfile = NCONF_get_string(conf, section, ENV_DATABASE)) == NULL) {
 413             lookup_fail(section, ENV_DATABASE);
 414             goto end;
 415         }
 416
 417     }
 418     if (randfile == NULL)
 419         ERR_clear_error();
 420     else
 421         app_RAND_load_file(randfile, 0);
 422
 423     if (verbose)
 424         BIO_printf(bio_err, "Trying to read SRP verifier file \"%s\"\n",
 425                    dbfile);
 426
 427     db = load_index(dbfile, &db_attr);
 428     if (db == NULL)
 429         goto end;
 430
 431     /* Lets check some fields */
 432     for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 433         pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 434
 435         if (pp[DB_srptype][0] == DB_SRP_INDEX) {
 436             maxgN = i;
 437             if ((gNindex < 0) && (gN != NULL) && strcmp(gN, pp[DB_srpid]) == 0)
 438                 gNindex = i;
 439
 440             print_index(db, i, verbose > 1);
 441         }
 442     }
 443
 444     if (verbose)
 445         BIO_printf(bio_err, "Database initialised\n");
 446
 447     if (gNindex >= 0) {
 448         gNrow = sk_OPENSSL_PSTRING_value(db->db->data, gNindex);
 449         print_entry(db, gNindex, verbose > 1, "Default g and N");
 450     } else if (maxgN > 0 && !SRP_get_default_gN(gN)) {
 451         BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
 452         goto end;
 453     } else {
 454         if (verbose)
 455             BIO_printf(bio_err, "Database has no g N information.\n");
 456         gNrow = NULL;
 457     }
 458
 459     if (verbose > 1)
 460         BIO_printf(bio_err, "Starting user processing\n");
 461
 462     if (argc > 0)
 463         user = *(argv++);
 464
 465     while (mode == OPT_LIST || user) {
 466         int userindex = -1;
 467         if (user)
 468             if (verbose > 1)
 469                 BIO_printf(bio_err, "Processing user \"%s\"\n", user);
 470         if ((userindex = get_index(db, user, 'U')) >= 0) {
 471             print_user(db, userindex, (verbose > 0)
 472                        || mode == OPT_LIST);
 473         }
 474
 475         if (mode == OPT_LIST) {
 476             if (user == NULL) {
 477                 BIO_printf(bio_err, "List all users\n");
 478
 479                 for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 480                     print_user(db, i, 1);
 481                 }
 482             } else if (userindex < 0) {
 483                 BIO_printf(bio_err,
 484                            "user \"%s\" does not exist, ignored. t\n", user);
 485                 errors++;
 486             }
 487         } else if (mode == OPT_ADD) {
 488             if (userindex >= 0) {
 489                 /* reactivation of a new user */
 490                 char **row =
 491                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 492                 BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
 493                 row[DB_srptype][0] = 'V';
 494
 495                 doupdatedb = 1;
 496             } else {
 497                 char *row[DB_NUMBER];
 498                 char *gNid;
 499                 row[DB_srpverifier] = NULL;
 500                 row[DB_srpsalt] = NULL;
 501                 row[DB_srpinfo] = NULL;
 502                 if (!
 503                     (gNid =
 504                      srp_create_user(user, &(row[DB_srpverifier]),
 505                                      &(row[DB_srpsalt]),
 506                                      gNrow ? gNrow[DB_srpsalt] : gN,
 507                                      gNrow ? gNrow[DB_srpverifier] : NULL,
 508                                      passout, verbose))) {
 509                     BIO_printf(bio_err,
 510                                "Cannot create srp verifier for user \"%s\", operation abandoned .\n",
 511                                user);
 512                     errors++;
 513                     goto end;
 514                 }
 515                 row[DB_srpid] = BUF_strdup(user);
 516                 row[DB_srptype] = BUF_strdup("v");
 517                 row[DB_srpgN] = BUF_strdup(gNid);
 518
 519                 if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype]
 520                     || !row[DB_srpverifier] || !row[DB_srpsalt]
 521                     || (userinfo &&
 522                          (!(row [DB_srpinfo] = BUF_strdup (userinfo))))
 523                     || !update_index(db, row)) {
 524                     OPENSSL_free(row[DB_srpid]);
 525                     OPENSSL_free(row[DB_srpgN]);
 526                     OPENSSL_free(row[DB_srpinfo]);
 527                     OPENSSL_free(row[DB_srptype]);
 528                     OPENSSL_free(row[DB_srpverifier]);
 529                     OPENSSL_free(row[DB_srpsalt]);
 530                     goto end;
 531                 }
 532                 doupdatedb = 1;
 533             }
 534         } else if (mode == OPT_MODIFY) {
 535             if (userindex < 0) {
 536                 BIO_printf(bio_err,
 537                            "user \"%s\" does not exist, operation ignored.\n",
 538                            user);
 539                 errors++;
 540             } else {
 541
 542                 char **row =
 543                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 544                 char type = row[DB_srptype][0];
 545                 if (type == 'v') {
 546                     BIO_printf(bio_err,
 547                                "user \"%s\" already updated, operation ignored.\n",
 548                                user);
 549                     errors++;
 550                 } else {
 551                     char *gNid;
 552
 553                     if (row[DB_srptype][0] == 'V') {
 554                         int user_gN;
 555                         char **irow = NULL;
 556                         if (verbose)
 557                             BIO_printf(bio_err,
 558                                        "Verifying password for user \"%s\"\n",
 559                                        user);
 560                         if ((user_gN =
 561                              get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
 562                             irow =
 563                                 sk_OPENSSL_PSTRING_value(db->db->data,
 564                                                          userindex);
 565
 566                         if (!srp_verify_user
 567                             (user, row[DB_srpverifier], row[DB_srpsalt],
 568                              irow ? irow[DB_srpsalt] : row[DB_srpgN],
 569                              irow ? irow[DB_srpverifier] : NULL, passin,
 570                              verbose)) {
 571                             BIO_printf(bio_err,
 572                                        "Invalid password for user \"%s\", operation abandoned.\n",
 573                                        user);
 574                             errors++;
 575                             goto end;
 576                         }
 577                     }
 578                     if (verbose)
 579                         BIO_printf(bio_err, "Password for user \"%s\" ok.\n",
 580                                    user);
 581
 582                     if (!
 583                         (gNid =
 584                          srp_create_user(user, &(row[DB_srpverifier]),
 585                                          &(row[DB_srpsalt]),
 586                                          gNrow ? gNrow[DB_srpsalt] : NULL,
 587                                          gNrow ? gNrow[DB_srpverifier] : NULL,
 588                                          passout, verbose))) {
 589                         BIO_printf(bio_err,
 590                                    "Cannot create srp verifier for user \"%s\", operation abandoned.\n",
 591                                    user);
 592                         errors++;
 593                         goto end;
 594                     }
 595
 596                     row[DB_srptype][0] = 'v';
 597                     row[DB_srpgN] = BUF_strdup(gNid);
 598
 599                     if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype]
 600                         || !row[DB_srpverifier] || !row[DB_srpsalt]
 601                         || (userinfo
 602                             && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))))
 603                         goto end;
 604
 605                     doupdatedb = 1;
 606                 }
 607             }
 608         } else if (mode == OPT_DELETE) {
 609             if (userindex < 0) {
 610                 BIO_printf(bio_err,
 611                            "user \"%s\" does not exist, operation ignored. t\n",
 612                            user);
 613                 errors++;
 614             } else {
 615                 char **xpp =
 616                     sk_OPENSSL_PSTRING_value(db->db->data, userindex);
 617                 BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
 618
 619                 xpp[DB_srptype][0] = 'R';
 620
 621                 doupdatedb = 1;
 622             }
 623         }
 624         if (--argc > 0)
 625             user = *(argv++);
 626         else {
 627             user = NULL;
 628         }
 629     }
 630
 631     if (verbose)
 632         BIO_printf(bio_err, "User procession done.\n");
 633
 634     if (doupdatedb) {
 635         /* Lets check some fields */
 636         for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
 637             pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
 638
 639             if (pp[DB_srptype][0] == 'v') {
 640                 pp[DB_srptype][0] = 'V';
 641                 print_user(db, i, verbose);
 642             }
 643         }
 644
 645         if (verbose)
 646             BIO_printf(bio_err, "Trying to update srpvfile.\n");
 647         if (!save_index(dbfile, "new", db))
 648             goto end;
 649
 650         if (verbose)
 651             BIO_printf(bio_err, "Temporary srpvfile created.\n");
 652         if (!rotate_index(dbfile, "new", "old"))
 653             goto end;
 654
 655         if (verbose)
 656             BIO_printf(bio_err, "srpvfile updated.\n");
 657     }
 658
 659     ret = (errors != 0);
 660  end:
 661     if (errors != 0)
 662         if (verbose)
 663             BIO_printf(bio_err, "User errors %d.\n", errors);
 664
 665     if (verbose)
 666         BIO_printf(bio_err, "SRP terminating with code %d.\n", ret);
 667     OPENSSL_free(tofree);
 668     if (ret)
 669         ERR_print_errors(bio_err);
 670     if (randfile)
 671         app_RAND_write_file(randfile);
 672     NCONF_free(conf);
 673     free_index(db);
 674     OBJ_cleanup();
 675     return (ret);
 676 }
 677
 678 #endif