srp.c revision 306195 
1/* apps/srp.c */
2/*
3 * Written by Peter Sylvester (peter.sylvester@edelweb.fr) for the EdelKey
4 * project and contributed to the OpenSSL project 2004.
5 */
6/* ====================================================================
7 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59#include <openssl/opensslconf.h>
60
61#ifndef OPENSSL_NO_SRP
62# include <stdio.h>
63# include <stdlib.h>
64# include <string.h>
65# include <openssl/conf.h>
66# include <openssl/bio.h>
67# include <openssl/err.h>
68# include <openssl/txt_db.h>
69# include <openssl/buffer.h>
70# include <openssl/srp.h>
71
72# include "apps.h"
73
74# undef PROG
75# define PROG srp_main
76
77# define BASE_SECTION    "srp"
78# define CONFIG_FILE "openssl.cnf"
79
80# define ENV_RANDFILE            "RANDFILE"
81
82# define ENV_DATABASE            "srpvfile"
83# define ENV_DEFAULT_SRP         "default_srp"
84
85static char *srp_usage[] = {
86    "usage: srp [args] [user] \n",
87    "\n",
88    " -verbose        Talk alot while doing things\n",
89    " -config file    A config file\n",
90    " -name arg       The particular srp definition to use\n",
91    " -srpvfile arg   The srp verifier file name\n",
92    " -add            add an user and srp verifier\n",
93    " -modify         modify the srp verifier of an existing user\n",
94    " -delete         delete user from verifier file\n",
95    " -list           list user\n",
96    " -gn arg         g and N values to be used for new verifier\n",
97    " -userinfo arg   additional info to be set for user\n",
98    " -passin arg     input file pass phrase source\n",
99    " -passout arg    output file pass phrase source\n",
100# ifndef OPENSSL_NO_ENGINE
101    " -engine e         - use engine e, possibly a hardware device.\n",
102# endif
103    NULL
104};
105
106# ifdef EFENCE
107extern int EF_PROTECT_FREE;
108extern int EF_PROTECT_BELOW;
109extern int EF_ALIGNMENT;
110# endif
111
112static CONF *conf = NULL;
113static char *section = NULL;
114
115# define VERBOSE if (verbose)
116# define VVERBOSE if (verbose>1)
117
118int MAIN(int, char **);
119
120static int get_index(CA_DB *db, char *id, char type)
121{
122    char **pp;
123    int i;
124    if (id == NULL)
125        return -1;
126    if (type == DB_SRP_INDEX)
127        for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
128            pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
129            if (pp[DB_srptype][0] == DB_SRP_INDEX
130                && !strcmp(id, pp[DB_srpid]))
131                return i;
132    } else
133        for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
134            pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
135
136            if (pp[DB_srptype][0] != DB_SRP_INDEX
137                && !strcmp(id, pp[DB_srpid]))
138                return i;
139        }
140
141    return -1;
142}
143
144static void print_entry(CA_DB *db, BIO *bio, int indx, int verbose, char *s)
145{
146    if (indx >= 0 && verbose) {
147        int j;
148        char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
149        BIO_printf(bio, "%s \"%s\"\n", s, pp[DB_srpid]);
150        for (j = 0; j < DB_NUMBER; j++) {
151            BIO_printf(bio_err, "  %d = \"%s\"\n", j, pp[j]);
152        }
153    }
154}
155
156static void print_index(CA_DB *db, BIO *bio, int indexindex, int verbose)
157{
158    print_entry(db, bio, indexindex, verbose, "g N entry");
159}
160
161static void print_user(CA_DB *db, BIO *bio, int userindex, int verbose)
162{
163    if (verbose > 0) {
164        char **pp = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
165
166        if (pp[DB_srptype][0] != 'I') {
167            print_entry(db, bio, userindex, verbose, "User entry");
168            print_entry(db, bio, get_index(db, pp[DB_srpgN], 'I'), verbose,
169                        "g N entry");
170        }
171
172    }
173}
174
175static int update_index(CA_DB *db, BIO *bio, char **row)
176{
177    char **irow;
178    int i;
179
180    if ((irow =
181         (char **)OPENSSL_malloc(sizeof(char *) * (DB_NUMBER + 1))) == NULL) {
182        BIO_printf(bio_err, "Memory allocation failure\n");
183        return 0;
184    }
185
186    for (i = 0; i < DB_NUMBER; i++) {
187        irow[i] = row[i];
188        row[i] = NULL;
189    }
190    irow[DB_NUMBER] = NULL;
191
192    if (!TXT_DB_insert(db->db, irow)) {
193        BIO_printf(bio, "failed to update srpvfile\n");
194        BIO_printf(bio, "TXT_DB error number %ld\n", db->db->error);
195        OPENSSL_free(irow);
196        return 0;
197    }
198    return 1;
199}
200
201static void lookup_fail(const char *name, char *tag)
202{
203    BIO_printf(bio_err, "variable lookup failed for %s::%s\n", name, tag);
204}
205
206static char *srp_verify_user(const char *user, const char *srp_verifier,
207                             char *srp_usersalt, const char *g, const char *N,
208                             const char *passin, BIO *bio, int verbose)
209{
210    char password[1024];
211    PW_CB_DATA cb_tmp;
212    char *verifier = NULL;
213    char *gNid = NULL;
214
215    cb_tmp.prompt_info = user;
216    cb_tmp.password = passin;
217
218    if (password_callback(password, 1024, 0, &cb_tmp) > 0) {
219        VERBOSE BIO_printf(bio,
220                           "Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
221                           user, srp_verifier, srp_usersalt, g, N);
222        BIO_printf(bio, "Pass %s\n", password);
223
224        if (!
225            (gNid =
226             SRP_create_verifier(user, password, &srp_usersalt, &verifier, N,
227                                 g))) {
228            BIO_printf(bio, "Internal error validating SRP verifier\n");
229        } else {
230            if (strcmp(verifier, srp_verifier))
231                gNid = NULL;
232            OPENSSL_free(verifier);
233        }
234    }
235    return gNid;
236}
237
238static char *srp_create_user(char *user, char **srp_verifier,
239                             char **srp_usersalt, char *g, char *N,
240                             char *passout, BIO *bio, int verbose)
241{
242    char password[1024];
243    PW_CB_DATA cb_tmp;
244    char *gNid = NULL;
245    char *salt = NULL;
246    cb_tmp.prompt_info = user;
247    cb_tmp.password = passout;
248
249    if (password_callback(password, 1024, 1, &cb_tmp) > 0) {
250        VERBOSE BIO_printf(bio,
251                           "Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",
252                           user, g, N);
253        if (!
254            (gNid =
255             SRP_create_verifier(user, password, &salt, srp_verifier, N,
256                                 g))) {
257            BIO_printf(bio, "Internal error creating SRP verifier\n");
258        } else
259            *srp_usersalt = salt;
260        VVERBOSE BIO_printf(bio, "gNid=%s salt =\"%s\"\n verifier =\"%s\"\n",
261                            gNid, salt, *srp_verifier);
262
263    }
264    return gNid;
265}
266
267int MAIN(int argc, char **argv)
268{
269    int add_user = 0;
270    int list_user = 0;
271    int delete_user = 0;
272    int modify_user = 0;
273    char *user = NULL;
274
275    char *passargin = NULL, *passargout = NULL;
276    char *passin = NULL, *passout = NULL;
277    char *gN = NULL;
278    int gNindex = -1;
279    char **gNrow = NULL;
280    int maxgN = -1;
281
282    char *userinfo = NULL;
283
284    int badops = 0;
285    int ret = 1;
286    int errors = 0;
287    int verbose = 0;
288    int doupdatedb = 0;
289    char *configfile = NULL;
290    char *dbfile = NULL;
291    CA_DB *db = NULL;
292    char **pp;
293    int i;
294    long errorline = -1;
295    char *randfile = NULL;
296# ifndef OPENSSL_NO_ENGINE
297    char *engine = NULL;
298# endif
299    char *tofree = NULL;
300    DB_ATTR db_attr;
301
302# ifdef EFENCE
303    EF_PROTECT_FREE = 1;
304    EF_PROTECT_BELOW = 1;
305    EF_ALIGNMENT = 0;
306# endif
307
308    apps_startup();
309
310    conf = NULL;
311    section = NULL;
312
313    if (bio_err == NULL)
314        if ((bio_err = BIO_new(BIO_s_file())) != NULL)
315            BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
316
317    argc--;
318    argv++;
319    while (argc >= 1 && badops == 0) {
320        if (strcmp(*argv, "-verbose") == 0)
321            verbose++;
322        else if (strcmp(*argv, "-config") == 0) {
323            if (--argc < 1)
324                goto bad;
325            configfile = *(++argv);
326        } else if (strcmp(*argv, "-name") == 0) {
327            if (--argc < 1)
328                goto bad;
329            section = *(++argv);
330        } else if (strcmp(*argv, "-srpvfile") == 0) {
331            if (--argc < 1)
332                goto bad;
333            dbfile = *(++argv);
334        } else if (strcmp(*argv, "-add") == 0)
335            add_user = 1;
336        else if (strcmp(*argv, "-delete") == 0)
337            delete_user = 1;
338        else if (strcmp(*argv, "-modify") == 0)
339            modify_user = 1;
340        else if (strcmp(*argv, "-list") == 0)
341            list_user = 1;
342        else if (strcmp(*argv, "-gn") == 0) {
343            if (--argc < 1)
344                goto bad;
345            gN = *(++argv);
346        } else if (strcmp(*argv, "-userinfo") == 0) {
347            if (--argc < 1)
348                goto bad;
349            userinfo = *(++argv);
350        } else if (strcmp(*argv, "-passin") == 0) {
351            if (--argc < 1)
352                goto bad;
353            passargin = *(++argv);
354        } else if (strcmp(*argv, "-passout") == 0) {
355            if (--argc < 1)
356                goto bad;
357            passargout = *(++argv);
358        }
359# ifndef OPENSSL_NO_ENGINE
360        else if (strcmp(*argv, "-engine") == 0) {
361            if (--argc < 1)
362                goto bad;
363            engine = *(++argv);
364        }
365# endif
366
367        else if (**argv == '-') {
368 bad:
369            BIO_printf(bio_err, "unknown option %s\n", *argv);
370            badops = 1;
371            break;
372        } else
373            break;
374
375        argc--;
376        argv++;
377    }
378
379    if (dbfile && configfile) {
380        BIO_printf(bio_err,
381                   "-dbfile and -configfile cannot be specified together.\n");
382        badops = 1;
383    }
384    if (add_user + delete_user + modify_user + list_user != 1) {
385        BIO_printf(bio_err,
386                   "Exactly one of the options -add, -delete, -modify -list must be specified.\n");
387        badops = 1;
388    }
389    if (delete_user + modify_user + delete_user == 1 && argc <= 0) {
390        BIO_printf(bio_err,
391                   "Need at least one user for options -add, -delete, -modify. \n");
392        badops = 1;
393    }
394    if ((passin || passout) && argc != 1) {
395        BIO_printf(bio_err,
396                   "-passin, -passout arguments only valid with one user.\n");
397        badops = 1;
398    }
399
400    if (badops) {
401        for (pp = srp_usage; (*pp != NULL); pp++)
402            BIO_printf(bio_err, "%s", *pp);
403
404        BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
405                   LIST_SEPARATOR_CHAR);
406        BIO_printf(bio_err,
407                   "                 load the file (or the files in the directory) into\n");
408        BIO_printf(bio_err, "                 the random number generator\n");
409        goto err;
410    }
411
412    ERR_load_crypto_strings();
413
414# ifndef OPENSSL_NO_ENGINE
415    setup_engine(bio_err, engine, 0);
416# endif
417
418    if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
419        BIO_printf(bio_err, "Error getting passwords\n");
420        goto err;
421    }
422
423    if (!dbfile) {
424
425        /*****************************************************************/
426        tofree = NULL;
427        if (configfile == NULL)
428            configfile = getenv("OPENSSL_CONF");
429        if (configfile == NULL)
430            configfile = getenv("SSLEAY_CONF");
431        if (configfile == NULL) {
432            const char *s = X509_get_default_cert_area();
433            size_t len;
434
435# ifdef OPENSSL_SYS_VMS
436            len = strlen(s) + sizeof(CONFIG_FILE);
437            tofree = OPENSSL_malloc(len);
438            if (!tofree) {
439                BIO_printf(bio_err, "Out of memory\n");
440                goto err;
441            }
442            strcpy(tofree, s);
443# else
444            len = strlen(s) + sizeof(CONFIG_FILE) + 1;
445            tofree = OPENSSL_malloc(len);
446            if (!tofree) {
447                BIO_printf(bio_err, "Out of memory\n");
448                goto err;
449            }
450            BUF_strlcpy(tofree, s, len);
451            BUF_strlcat(tofree, "/", len);
452# endif
453            BUF_strlcat(tofree, CONFIG_FILE, len);
454            configfile = tofree;
455        }
456
457        VERBOSE BIO_printf(bio_err, "Using configuration from %s\n",
458                           configfile);
459        conf = NCONF_new(NULL);
460        if (NCONF_load(conf, configfile, &errorline) <= 0) {
461            if (errorline <= 0)
462                BIO_printf(bio_err, "error loading the config file '%s'\n",
463                           configfile);
464            else
465                BIO_printf(bio_err, "error on line %ld of config file '%s'\n",
466                           errorline, configfile);
467            goto err;
468        }
469        if (tofree) {
470            OPENSSL_free(tofree);
471            tofree = NULL;
472        }
473
474        if (!load_config(bio_err, conf))
475            goto err;
476
477        /* Lets get the config section we are using */
478        if (section == NULL) {
479            VERBOSE BIO_printf(bio_err,
480                               "trying to read " ENV_DEFAULT_SRP
481                               " in \" BASE_SECTION \"\n");
482
483            section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_SRP);
484            if (section == NULL) {
485                lookup_fail(BASE_SECTION, ENV_DEFAULT_SRP);
486                goto err;
487            }
488        }
489
490        if (randfile == NULL && conf)
491            randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
492
493        VERBOSE BIO_printf(bio_err,
494                           "trying to read " ENV_DATABASE
495                           " in section \"%s\"\n", section);
496
497        if ((dbfile = NCONF_get_string(conf, section, ENV_DATABASE)) == NULL) {
498            lookup_fail(section, ENV_DATABASE);
499            goto err;
500        }
501
502    }
503    if (randfile == NULL)
504        ERR_clear_error();
505    else
506        app_RAND_load_file(randfile, bio_err, 0);
507
508    VERBOSE BIO_printf(bio_err, "Trying to read SRP verifier file \"%s\"\n",
509                       dbfile);
510
511    db = load_index(dbfile, &db_attr);
512    if (db == NULL)
513        goto err;
514
515    /* Lets check some fields */
516    for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
517        pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
518
519        if (pp[DB_srptype][0] == DB_SRP_INDEX) {
520            maxgN = i;
521            if (gNindex < 0 && gN != NULL && !strcmp(gN, pp[DB_srpid]))
522                gNindex = i;
523
524            print_index(db, bio_err, i, verbose > 1);
525        }
526    }
527
528    VERBOSE BIO_printf(bio_err, "Database initialised\n");
529
530    if (gNindex >= 0) {
531        gNrow = sk_OPENSSL_PSTRING_value(db->db->data, gNindex);
532        print_entry(db, bio_err, gNindex, verbose > 1, "Default g and N");
533    } else if (maxgN > 0 && !SRP_get_default_gN(gN)) {
534        BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
535        goto err;
536    } else {
537        VERBOSE BIO_printf(bio_err, "Database has no g N information.\n");
538        gNrow = NULL;
539    }
540
541    VVERBOSE BIO_printf(bio_err, "Starting user processing\n");
542
543    if (argc > 0)
544        user = *(argv++);
545
546    while (list_user || user) {
547        int userindex = -1;
548        if (user)
549            VVERBOSE BIO_printf(bio_err, "Processing user \"%s\"\n", user);
550        if ((userindex = get_index(db, user, 'U')) >= 0) {
551            print_user(db, bio_err, userindex, (verbose > 0) || list_user);
552        }
553
554        if (list_user) {
555            if (user == NULL) {
556                BIO_printf(bio_err, "List all users\n");
557
558                for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
559                    print_user(db, bio_err, i, 1);
560                }
561                list_user = 0;
562            } else if (userindex < 0) {
563                BIO_printf(bio_err,
564                           "user \"%s\" does not exist, ignored. t\n", user);
565                errors++;
566            }
567        } else if (add_user) {
568            if (userindex >= 0) {
569                /* reactivation of a new user */
570                char **row =
571                    sk_OPENSSL_PSTRING_value(db->db->data, userindex);
572                BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
573                row[DB_srptype][0] = 'V';
574
575                doupdatedb = 1;
576            } else {
577                char *row[DB_NUMBER];
578                char *gNid;
579                row[DB_srpverifier] = NULL;
580                row[DB_srpsalt] = NULL;
581                row[DB_srpinfo] = NULL;
582                if (!
583                    (gNid =
584                     srp_create_user(user, &(row[DB_srpverifier]),
585                                     &(row[DB_srpsalt]),
586                                     gNrow ? gNrow[DB_srpsalt] : gN,
587                                     gNrow ? gNrow[DB_srpverifier] : NULL,
588                                     passout, bio_err, verbose))) {
589                    BIO_printf(bio_err,
590                               "Cannot create srp verifier for user \"%s\", operation abandoned .\n",
591                               user);
592                    errors++;
593                    goto err;
594                }
595                row[DB_srpid] = BUF_strdup(user);
596                row[DB_srptype] = BUF_strdup("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] || (userinfo
601                                                                    &&
602                                                                    (!(row
603                                                                       [DB_srpinfo]
604                                                                       =
605                                                                       BUF_strdup
606                                                                       (userinfo))))
607                    || !update_index(db, bio_err, row)) {
608                    if (row[DB_srpid])
609                        OPENSSL_free(row[DB_srpid]);
610                    if (row[DB_srpgN])
611                        OPENSSL_free(row[DB_srpgN]);
612                    if (row[DB_srpinfo])
613                        OPENSSL_free(row[DB_srpinfo]);
614                    if (row[DB_srptype])
615                        OPENSSL_free(row[DB_srptype]);
616                    if (row[DB_srpverifier])
617                        OPENSSL_free(row[DB_srpverifier]);
618                    if (row[DB_srpsalt])
619                        OPENSSL_free(row[DB_srpsalt]);
620                    goto err;
621                }
622                doupdatedb = 1;
623            }
624        } else if (modify_user) {
625            if (userindex < 0) {
626                BIO_printf(bio_err,
627                           "user \"%s\" does not exist, operation ignored.\n",
628                           user);
629                errors++;
630            } else {
631
632                char **row =
633                    sk_OPENSSL_PSTRING_value(db->db->data, userindex);
634                char type = row[DB_srptype][0];
635                if (type == 'v') {
636                    BIO_printf(bio_err,
637                               "user \"%s\" already updated, operation ignored.\n",
638                               user);
639                    errors++;
640                } else {
641                    char *gNid;
642
643                    if (row[DB_srptype][0] == 'V') {
644                        int user_gN;
645                        char **irow = NULL;
646                        VERBOSE BIO_printf(bio_err,
647                                           "Verifying password for user \"%s\"\n",
648                                           user);
649                        if ((user_gN =
650                             get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
651                            irow =
652                                (char **)sk_OPENSSL_PSTRING_value(db->
653                                                                  db->data,
654                                                                  userindex);
655
656                        if (!srp_verify_user
657                            (user, row[DB_srpverifier], row[DB_srpsalt],
658                             irow ? irow[DB_srpsalt] : row[DB_srpgN],
659                             irow ? irow[DB_srpverifier] : NULL, passin,
660                             bio_err, verbose)) {
661                            BIO_printf(bio_err,
662                                       "Invalid password for user \"%s\", operation abandoned.\n",
663                                       user);
664                            errors++;
665                            goto err;
666                        }
667                    }
668                    VERBOSE BIO_printf(bio_err,
669                                       "Password for user \"%s\" ok.\n",
670                                       user);
671
672                    if (!
673                        (gNid =
674                         srp_create_user(user, &(row[DB_srpverifier]),
675                                         &(row[DB_srpsalt]),
676                                         gNrow ? gNrow[DB_srpsalt] : NULL,
677                                         gNrow ? gNrow[DB_srpverifier] : NULL,
678                                         passout, bio_err, verbose))) {
679                        BIO_printf(bio_err,
680                                   "Cannot create srp verifier for user \"%s\", operation abandoned.\n",
681                                   user);
682                        errors++;
683                        goto err;
684                    }
685
686                    row[DB_srptype][0] = 'v';
687                    row[DB_srpgN] = BUF_strdup(gNid);
688
689                    if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype]
690                        || !row[DB_srpverifier] || !row[DB_srpsalt]
691                        || (userinfo
692                            && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))))
693                        goto err;
694
695                    doupdatedb = 1;
696                }
697            }
698        } else if (delete_user) {
699            if (userindex < 0) {
700                BIO_printf(bio_err,
701                           "user \"%s\" does not exist, operation ignored. t\n",
702                           user);
703                errors++;
704            } else {
705                char **xpp =
706                    sk_OPENSSL_PSTRING_value(db->db->data, userindex);
707                BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
708
709                xpp[DB_srptype][0] = 'R';
710
711                doupdatedb = 1;
712            }
713        }
714        if (--argc > 0)
715            user = *(argv++);
716        else {
717            user = NULL;
718            list_user = 0;
719        }
720    }
721
722    VERBOSE BIO_printf(bio_err, "User procession done.\n");
723
724    if (doupdatedb) {
725        /* Lets check some fields */
726        for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
727            pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
728
729            if (pp[DB_srptype][0] == 'v') {
730                pp[DB_srptype][0] = 'V';
731                print_user(db, bio_err, i, verbose);
732            }
733        }
734
735        VERBOSE BIO_printf(bio_err, "Trying to update srpvfile.\n");
736        if (!save_index(dbfile, "new", db))
737            goto err;
738
739        VERBOSE BIO_printf(bio_err, "Temporary srpvfile created.\n");
740        if (!rotate_index(dbfile, "new", "old"))
741            goto err;
742
743        VERBOSE BIO_printf(bio_err, "srpvfile updated.\n");
744    }
745
746    ret = (errors != 0);
747 err:
748    if (errors != 0)
749        VERBOSE BIO_printf(bio_err, "User errors %d.\n", errors);
750
751    VERBOSE BIO_printf(bio_err, "SRP terminating with code %d.\n", ret);
752    if (tofree)
753        OPENSSL_free(tofree);
754    if (ret)
755        ERR_print_errors(bio_err);
756    if (randfile)
757        app_RAND_write_file(randfile, bio_err);
758    if (conf)
759        NCONF_free(conf);
760    if (db)
761        free_index(db);
762
763    OBJ_cleanup();
764    apps_shutdown();
765    OPENSSL_EXIT(ret);
766}
767
768#else
769static void *dummy = &dummy;
770#endif
771