apps/apps.c

   1 /* apps/apps.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <stdio.h>
 113 #include <stdlib.h>
 114 #include <string.h>
 115 #include <sys/types.h>
 116 #include <sys/stat.h>
 117 #include <ctype.h>
 118 #include <assert.h>
 119 #include <openssl/err.h>
 120 #include <openssl/x509.h>
 121 #include <openssl/x509v3.h>
 122 #include <openssl/pem.h>
 123 #include <openssl/pkcs12.h>
 124 #include <openssl/ui.h>
 125 #include <openssl/safestack.h>
 126 #ifndef OPENSSL_NO_ENGINE
 127 # include <openssl/engine.h>
 128 #endif
 129 #ifndef OPENSSL_NO_RSA
 130 # include <openssl/rsa.h>
 131 #endif
 132 #include <openssl/bn.h>
 133 #ifndef OPENSSL_NO_JPAKE
 134 # include <openssl/jpake.h>
 135 #endif
 136
 137 #define NON_MAIN
 138 #include "apps.h"
 139 #undef NON_MAIN
 140
 141 typedef struct {
 142     const char *name;
 143     unsigned long flag;
 144     unsigned long mask;
 145 } NAME_EX_TBL;
 146
 147 static UI_METHOD *ui_method = NULL;
 148
 149 static int set_table_opts(unsigned long *flags, const char *arg,
 150                           const NAME_EX_TBL * in_tbl);
 151 static int set_multi_opts(unsigned long *flags, const char *arg,
 152                           const NAME_EX_TBL * in_tbl);
 153
 154 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 155 /* Looks like this stuff is worth moving into separate function */
 156 static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
 157                                    const char *key_descrip, int format);
 158 #endif
 159
 160 int app_init(long mesgwin);
 161 #ifdef undef                    /* never finished - probably never will be
 162                                  * :-) */
 163 int args_from_file(char *file, int *argc, char **argv[])
 164 {
 165     FILE *fp;
 166     int num, i;
 167     unsigned int len;
 168     static char *buf = NULL;
 169     static char **arg = NULL;
 170     char *p;
 171     struct stat stbuf;
 172
 173     if (stat(file, &stbuf) < 0)
 174         return (0);
 175
 176     fp = fopen(file, "r");
 177     if (fp == NULL)
 178         return (0);
 179
 180     *argc = 0;
 181     *argv = NULL;
 182
 183     len = (unsigned int)stbuf.st_size;
 184     if (buf != NULL)
 185         OPENSSL_free(buf);
 186     buf = (char *)OPENSSL_malloc(len + 1);
 187     if (buf == NULL)
 188         return (0);
 189
 190     len = fread(buf, 1, len, fp);
 191     if (len <= 1)
 192         return (0);
 193     buf[len] = '\0';
 194
 195     i = 0;
 196     for (p = buf; *p; p++)
 197         if (*p == '\n')
 198             i++;
 199     if (arg != NULL)
 200         OPENSSL_free(arg);
 201     arg = (char **)OPENSSL_malloc(sizeof(char *) * (i * 2));
 202
 203     *argv = arg;
 204     num = 0;
 205     p = buf;
 206     for (;;) {
 207         if (!*p)
 208             break;
 209         if (*p == '#') {        /* comment line */
 210             while (*p && (*p != '\n'))
 211                 p++;
 212             continue;
 213         }
 214         /* else we have a line */
 215         *(arg++) = p;
 216         num++;
 217         while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 218             p++;
 219         if (!*p)
 220             break;
 221         if (*p == '\n') {
 222             *(p++) = '\0';
 223             continue;
 224         }
 225         /* else it is a tab or space */
 226         p++;
 227         while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 228             p++;
 229         if (!*p)
 230             break;
 231         if (*p == '\n') {
 232             p++;
 233             continue;
 234         }
 235         *(arg++) = p++;
 236         num++;
 237         while (*p && (*p != '\n'))
 238             p++;
 239         if (!*p)
 240             break;
 241         /* else *p == '\n' */
 242         *(p++) = '\0';
 243     }
 244     *argc = num;
 245     return (1);
 246 }
 247 #endif
 248
 249 int str2fmt(char *s)
 250 {
 251     if ((*s == 'D') || (*s == 'd'))
 252         return (FORMAT_ASN1);
 253     else if ((*s == 'T') || (*s == 't'))
 254         return (FORMAT_TEXT);
 255     else if ((*s == 'P') || (*s == 'p'))
 256         return (FORMAT_PEM);
 257     else if ((*s == 'N') || (*s == 'n'))
 258         return (FORMAT_NETSCAPE);
 259     else if ((*s == 'S') || (*s == 's'))
 260         return (FORMAT_SMIME);
 261     else if ((*s == '1')
 262              || (strcmp(s, "PKCS12") == 0) || (strcmp(s, "pkcs12") == 0)
 263              || (strcmp(s, "P12") == 0) || (strcmp(s, "p12") == 0))
 264         return (FORMAT_PKCS12);
 265     else if ((*s == 'E') || (*s == 'e'))
 266         return (FORMAT_ENGINE);
 267     else
 268         return (FORMAT_UNDEF);
 269 }
 270
 271 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
 272 void program_name(char *in, char *out, int size)
 273 {
 274     int i, n;
 275     char *p = NULL;
 276
 277     n = strlen(in);
 278     /* find the last '/', '\' or ':' */
 279     for (i = n - 1; i > 0; i--) {
 280         if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':')) {
 281             p = &(in[i + 1]);
 282             break;
 283         }
 284     }
 285     if (p == NULL)
 286         p = in;
 287     n = strlen(p);
 288
 289 # if defined(OPENSSL_SYS_NETWARE)
 290     /* strip off trailing .nlm if present. */
 291     if ((n > 4) && (p[n - 4] == '.') &&
 292         ((p[n - 3] == 'n') || (p[n - 3] == 'N')) &&
 293         ((p[n - 2] == 'l') || (p[n - 2] == 'L')) &&
 294         ((p[n - 1] == 'm') || (p[n - 1] == 'M')))
 295         n -= 4;
 296 # else
 297     /* strip off trailing .exe if present. */
 298     if ((n > 4) && (p[n - 4] == '.') &&
 299         ((p[n - 3] == 'e') || (p[n - 3] == 'E')) &&
 300         ((p[n - 2] == 'x') || (p[n - 2] == 'X')) &&
 301         ((p[n - 1] == 'e') || (p[n - 1] == 'E')))
 302         n -= 4;
 303 # endif
 304
 305     if (n > size - 1)
 306         n = size - 1;
 307
 308     for (i = 0; i < n; i++) {
 309         if ((p[i] >= 'A') && (p[i] <= 'Z'))
 310             out[i] = p[i] - 'A' + 'a';
 311         else
 312             out[i] = p[i];
 313     }
 314     out[n] = '\0';
 315 }
 316 #else
 317 # ifdef OPENSSL_SYS_VMS
 318 void program_name(char *in, char *out, int size)
 319 {
 320     char *p = in, *q;
 321     char *chars = ":]>";
 322
 323     while (*chars != '\0') {
 324         q = strrchr(p, *chars);
 325         if (q > p)
 326             p = q + 1;
 327         chars++;
 328     }
 329
 330     q = strrchr(p, '.');
 331     if (q == NULL)
 332         q = p + strlen(p);
 333     strncpy(out, p, size - 1);
 334     if (q - p >= size) {
 335         out[size - 1] = '\0';
 336     } else {
 337         out[q - p] = '\0';
 338     }
 339 }
 340 # else
 341 void program_name(char *in, char *out, int size)
 342 {
 343     char *p;
 344
 345     p = strrchr(in, '/');
 346     if (p != NULL)
 347         p++;
 348     else
 349         p = in;
 350     BUF_strlcpy(out, p, size);
 351 }
 352 # endif
 353 #endif
 354
 355 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 356 {
 357     int num, i;
 358     char *p;
 359
 360     *argc = 0;
 361     *argv = NULL;
 362
 363     i = 0;
 364     if (arg->count == 0) {
 365         arg->count = 20;
 366         arg->data = (char **)OPENSSL_malloc(sizeof(char *) * arg->count);
 367         if (arg->data == NULL)
 368             return 0;
 369     }
 370     for (i = 0; i < arg->count; i++)
 371         arg->data[i] = NULL;
 372
 373     num = 0;
 374     p = buf;
 375     for (;;) {
 376         /* first scan over white space */
 377         if (!*p)
 378             break;
 379         while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 380             p++;
 381         if (!*p)
 382             break;
 383
 384         /* The start of something good :-) */
 385         if (num >= arg->count) {
 386             char **tmp_p;
 387             int tlen = arg->count + 20;
 388             tmp_p = (char **)OPENSSL_realloc(arg->data,
 389                                              sizeof(char *) * tlen);
 390             if (tmp_p == NULL)
 391                 return 0;
 392             arg->data = tmp_p;
 393             arg->count = tlen;
 394             /* initialize newly allocated data */
 395             for (i = num; i < arg->count; i++)
 396                 arg->data[i] = NULL;
 397         }
 398         arg->data[num++] = p;
 399
 400         /* now look for the end of this */
 401         if ((*p == '\'') || (*p == '\"')) { /* scan for closing quote */
 402             i = *(p++);
 403             arg->data[num - 1]++; /* jump over quote */
 404             while (*p && (*p != i))
 405                 p++;
 406             *p = '\0';
 407         } else {
 408             while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 409                 p++;
 410
 411             if (*p == '\0')
 412                 p--;
 413             else
 414                 *p = '\0';
 415         }
 416         p++;
 417     }
 418     *argc = num;
 419     *argv = arg->data;
 420     return (1);
 421 }
 422
 423 #ifndef APP_INIT
 424 int app_init(long mesgwin)
 425 {
 426     return (1);
 427 }
 428 #endif
 429
 430 int dump_cert_text(BIO *out, X509 *x)
 431 {
 432     char *p;
 433
 434     p = X509_NAME_oneline(X509_get_subject_name(x), NULL, 0);
 435     BIO_puts(out, "subject=");
 436     BIO_puts(out, p);
 437     OPENSSL_free(p);
 438
 439     p = X509_NAME_oneline(X509_get_issuer_name(x), NULL, 0);
 440     BIO_puts(out, "\nissuer=");
 441     BIO_puts(out, p);
 442     BIO_puts(out, "\n");
 443     OPENSSL_free(p);
 444
 445     return 0;
 446 }
 447
 448 static int ui_open(UI *ui)
 449 {
 450     return UI_method_get_opener(UI_OpenSSL())(ui);
 451 }
 452
 453 static int ui_read(UI *ui, UI_STRING *uis)
 454 {
 455     if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 456         && UI_get0_user_data(ui)) {
 457         switch (UI_get_string_type(uis)) {
 458         case UIT_PROMPT:
 459         case UIT_VERIFY:
 460             {
 461                 const char *password =
 462                     ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 463                 if (password && password[0] != '\0') {
 464                     UI_set_result(ui, uis, password);
 465                     return 1;
 466                 }
 467             }
 468         default:
 469             break;
 470         }
 471     }
 472     return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 473 }
 474
 475 static int ui_write(UI *ui, UI_STRING *uis)
 476 {
 477     if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 478         && UI_get0_user_data(ui)) {
 479         switch (UI_get_string_type(uis)) {
 480         case UIT_PROMPT:
 481         case UIT_VERIFY:
 482             {
 483                 const char *password =
 484                     ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 485                 if (password && password[0] != '\0')
 486                     return 1;
 487             }
 488         default:
 489             break;
 490         }
 491     }
 492     return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 493 }
 494
 495 static int ui_close(UI *ui)
 496 {
 497     return UI_method_get_closer(UI_OpenSSL())(ui);
 498 }
 499
 500 int setup_ui_method(void)
 501 {
 502     ui_method = UI_create_method("OpenSSL application user interface");
 503     UI_method_set_opener(ui_method, ui_open);
 504     UI_method_set_reader(ui_method, ui_read);
 505     UI_method_set_writer(ui_method, ui_write);
 506     UI_method_set_closer(ui_method, ui_close);
 507     return 0;
 508 }
 509
 510 void destroy_ui_method(void)
 511 {
 512     if (ui_method) {
 513         UI_destroy_method(ui_method);
 514         ui_method = NULL;
 515     }
 516 }
 517
 518 int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_tmp)
 519 {
 520     UI *ui = NULL;
 521     int res = 0;
 522     const char *prompt_info = NULL;
 523     const char *password = NULL;
 524     PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 525
 526     if (cb_data) {
 527         if (cb_data->password)
 528             password = cb_data->password;
 529         if (cb_data->prompt_info)
 530             prompt_info = cb_data->prompt_info;
 531     }
 532
 533     if (password) {
 534         res = strlen(password);
 535         if (res > bufsiz)
 536             res = bufsiz;
 537         memcpy(buf, password, res);
 538         return res;
 539     }
 540
 541     ui = UI_new_method(ui_method);
 542     if (ui) {
 543         int ok = 0;
 544         char *buff = NULL;
 545         int ui_flags = 0;
 546         char *prompt = NULL;
 547
 548         prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
 549
 550         ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 551         UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 552
 553         if (ok >= 0)
 554             ok = UI_add_input_string(ui, prompt, ui_flags, buf,
 555                                      PW_MIN_LENGTH, bufsiz - 1);
 556         if (ok >= 0 && verify) {
 557             buff = (char *)OPENSSL_malloc(bufsiz);
 558             ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
 559                                       PW_MIN_LENGTH, bufsiz - 1, buf);
 560         }
 561         if (ok >= 0)
 562             do {
 563                 ok = UI_process(ui);
 564             }
 565             while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 566
 567         if (buff) {
 568             OPENSSL_cleanse(buff, (unsigned int)bufsiz);
 569             OPENSSL_free(buff);
 570         }
 571
 572         if (ok >= 0)
 573             res = strlen(buf);
 574         if (ok == -1) {
 575             BIO_printf(bio_err, "User interface error\n");
 576             ERR_print_errors(bio_err);
 577             OPENSSL_cleanse(buf, (unsigned int)bufsiz);
 578             res = 0;
 579         }
 580         if (ok == -2) {
 581             BIO_printf(bio_err, "aborted!\n");
 582             OPENSSL_cleanse(buf, (unsigned int)bufsiz);
 583             res = 0;
 584         }
 585         UI_free(ui);
 586         OPENSSL_free(prompt);
 587     }
 588     return res;
 589 }
 590
 591 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 592
 593 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 594 {
 595     int same;
 596     if (!arg2 || !arg1 || strcmp(arg1, arg2))
 597         same = 0;
 598     else
 599         same = 1;
 600     if (arg1) {
 601         *pass1 = app_get_pass(err, arg1, same);
 602         if (!*pass1)
 603             return 0;
 604     } else if (pass1)
 605         *pass1 = NULL;
 606     if (arg2) {
 607         *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 608         if (!*pass2)
 609             return 0;
 610     } else if (pass2)
 611         *pass2 = NULL;
 612     return 1;
 613 }
 614
 615 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 616 {
 617     char *tmp, tpass[APP_PASS_LEN];
 618     static BIO *pwdbio = NULL;
 619     int i;
 620     if (!strncmp(arg, "pass:", 5))
 621         return BUF_strdup(arg + 5);
 622     if (!strncmp(arg, "env:", 4)) {
 623         tmp = getenv(arg + 4);
 624         if (!tmp) {
 625             BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 626             return NULL;
 627         }
 628         return BUF_strdup(tmp);
 629     }
 630     if (!keepbio || !pwdbio) {
 631         if (!strncmp(arg, "file:", 5)) {
 632             pwdbio = BIO_new_file(arg + 5, "r");
 633             if (!pwdbio) {
 634                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 635                 return NULL;
 636             }
 637         } else if (!strncmp(arg, "fd:", 3)) {
 638             BIO *btmp;
 639             i = atoi(arg + 3);
 640             if (i >= 0)
 641                 pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 642             if ((i < 0) || !pwdbio) {
 643                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 644                 return NULL;
 645             }
 646             /*
 647              * Can't do BIO_gets on an fd BIO so add a buffering BIO
 648              */
 649             btmp = BIO_new(BIO_f_buffer());
 650             pwdbio = BIO_push(btmp, pwdbio);
 651         } else if (!strcmp(arg, "stdin")) {
 652             pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 653             if (!pwdbio) {
 654                 BIO_printf(err, "Can't open BIO for stdin\n");
 655                 return NULL;
 656             }
 657         } else {
 658             BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 659             return NULL;
 660         }
 661     }
 662     i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 663     if (keepbio != 1) {
 664         BIO_free_all(pwdbio);
 665         pwdbio = NULL;
 666     }
 667     if (i <= 0) {
 668         BIO_printf(err, "Error reading password from BIO\n");
 669         return NULL;
 670     }
 671     tmp = strchr(tpass, '\n');
 672     if (tmp)
 673         *tmp = 0;
 674     return BUF_strdup(tpass);
 675 }
 676
 677 int add_oid_section(BIO *err, CONF *conf)
 678 {
 679     char *p;
 680     STACK_OF(CONF_VALUE) *sktmp;
 681     CONF_VALUE *cnf;
 682     int i;
 683     if (!(p = NCONF_get_string(conf, NULL, "oid_section"))) {
 684         ERR_clear_error();
 685         return 1;
 686     }
 687     if (!(sktmp = NCONF_get_section(conf, p))) {
 688         BIO_printf(err, "problem loading oid section %s\n", p);
 689         return 0;
 690     }
 691     for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 692         cnf = sk_CONF_VALUE_value(sktmp, i);
 693         if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 694             BIO_printf(err, "problem creating object %s=%s\n",
 695                        cnf->name, cnf->value);
 696             return 0;
 697         }
 698     }
 699     return 1;
 700 }
 701
 702 static int load_pkcs12(BIO *err, BIO *in, const char *desc,
 703                        pem_password_cb *pem_cb, void *cb_data,
 704                        EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
 705 {
 706     const char *pass;
 707     char tpass[PEM_BUFSIZE];
 708     int len, ret = 0;
 709     PKCS12 *p12;
 710     p12 = d2i_PKCS12_bio(in, NULL);
 711     if (p12 == NULL) {
 712         BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
 713         goto die;
 714     }
 715     /* See if an empty password will do */
 716     if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
 717         pass = "";
 718     else {
 719         if (!pem_cb)
 720             pem_cb = (pem_password_cb *)password_callback;
 721         len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
 722         if (len < 0) {
 723             BIO_printf(err, "Passpharse callback error for %s\n", desc);
 724             goto die;
 725         }
 726         if (len < PEM_BUFSIZE)
 727             tpass[len] = 0;
 728         if (!PKCS12_verify_mac(p12, tpass, len)) {
 729             BIO_printf(err,
 730                        "Mac verify error (wrong password?) in PKCS12 file for %s\n",
 731                        desc);
 732             goto die;
 733         }
 734         pass = tpass;
 735     }
 736     ret = PKCS12_parse(p12, pass, pkey, cert, ca);
 737  die:
 738     if (p12)
 739         PKCS12_free(p12);
 740     return ret;
 741 }
 742
 743 X509 *load_cert(BIO *err, const char *file, int format,
 744                 const char *pass, ENGINE *e, const char *cert_descrip)
 745 {
 746     ASN1_HEADER *ah = NULL;
 747     BUF_MEM *buf = NULL;
 748     X509 *x = NULL;
 749     BIO *cert;
 750
 751     if ((cert = BIO_new(BIO_s_file())) == NULL) {
 752         ERR_print_errors(err);
 753         goto end;
 754     }
 755
 756     if (file == NULL) {
 757         setvbuf(stdin, NULL, _IONBF, 0);
 758         BIO_set_fp(cert, stdin, BIO_NOCLOSE);
 759     } else {
 760         if (BIO_read_filename(cert, file) <= 0) {
 761             BIO_printf(err, "Error opening %s %s\n", cert_descrip, file);
 762             ERR_print_errors(err);
 763             goto end;
 764         }
 765     }
 766
 767     if (format == FORMAT_ASN1)
 768         x = d2i_X509_bio(cert, NULL);
 769     else if (format == FORMAT_NETSCAPE) {
 770         const unsigned char *p, *op;
 771         int size = 0, i;
 772
 773         /*
 774          * We sort of have to do it this way because it is sort of nice to
 775          * read the header first and check it, then try to read the
 776          * certificate
 777          */
 778         buf = BUF_MEM_new();
 779         for (;;) {
 780             if ((buf == NULL) || (!BUF_MEM_grow(buf, size + 1024 * 10)))
 781                 goto end;
 782             i = BIO_read(cert, &(buf->data[size]), 1024 * 10);
 783             size += i;
 784             if (i == 0)
 785                 break;
 786             if (i < 0) {
 787                 perror("reading certificate");
 788                 goto end;
 789             }
 790         }
 791         p = (unsigned char *)buf->data;
 792         op = p;
 793
 794         /* First load the header */
 795         if ((ah = d2i_ASN1_HEADER(NULL, &p, (long)size)) == NULL)
 796             goto end;
 797         if ((ah->header == NULL) || (ah->header->data == NULL) ||
 798             (strncmp(NETSCAPE_CERT_HDR, (char *)ah->header->data,
 799                      ah->header->length) != 0)) {
 800             BIO_printf(err, "Error reading header on certificate\n");
 801             goto end;
 802         }
 803         /* header is ok, so now read the object */
 804         p = op;
 805         ah->meth = X509_asn1_meth();
 806         if ((ah = d2i_ASN1_HEADER(&ah, &p, (long)size)) == NULL)
 807             goto end;
 808         x = (X509 *)ah->data;
 809         ah->data = NULL;
 810     } else if (format == FORMAT_PEM)
 811         x = PEM_read_bio_X509_AUX(cert, NULL,
 812                                   (pem_password_cb *)password_callback, NULL);
 813     else if (format == FORMAT_PKCS12) {
 814         if (!load_pkcs12(err, cert, cert_descrip, NULL, NULL, NULL, &x, NULL))
 815             goto end;
 816     } else {
 817         BIO_printf(err, "bad input format specified for %s\n", cert_descrip);
 818         goto end;
 819     }
 820  end:
 821     if (x == NULL) {
 822         BIO_printf(err, "unable to load certificate\n");
 823         ERR_print_errors(err);
 824     }
 825     if (ah != NULL)
 826         ASN1_HEADER_free(ah);
 827     if (cert != NULL)
 828         BIO_free(cert);
 829     if (buf != NULL)
 830         BUF_MEM_free(buf);
 831     return (x);
 832 }
 833
 834 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
 835                    const char *pass, ENGINE *e, const char *key_descrip)
 836 {
 837     BIO *key = NULL;
 838     EVP_PKEY *pkey = NULL;
 839     PW_CB_DATA cb_data;
 840
 841     cb_data.password = pass;
 842     cb_data.prompt_info = file;
 843
 844     if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
 845         BIO_printf(err, "no keyfile specified\n");
 846         goto end;
 847     }
 848 #ifndef OPENSSL_NO_ENGINE
 849     if (format == FORMAT_ENGINE) {
 850         if (!e)
 851             BIO_printf(err, "no engine specified\n");
 852         else {
 853             pkey = ENGINE_load_private_key(e, file, ui_method, &cb_data);
 854             if (!pkey) {
 855                 BIO_printf(err, "cannot load %s from engine\n", key_descrip);
 856                 ERR_print_errors(err);
 857             }
 858         }
 859         goto end;
 860     }
 861 #endif
 862     key = BIO_new(BIO_s_file());
 863     if (key == NULL) {
 864         ERR_print_errors(err);
 865         goto end;
 866     }
 867     if (file == NULL && maybe_stdin) {
 868         setvbuf(stdin, NULL, _IONBF, 0);
 869         BIO_set_fp(key, stdin, BIO_NOCLOSE);
 870     } else if (BIO_read_filename(key, file) <= 0) {
 871         BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 872         ERR_print_errors(err);
 873         goto end;
 874     }
 875     if (format == FORMAT_ASN1) {
 876         pkey = d2i_PrivateKey_bio(key, NULL);
 877     } else if (format == FORMAT_PEM) {
 878         pkey = PEM_read_bio_PrivateKey(key, NULL,
 879                                        (pem_password_cb *)password_callback,
 880                                        &cb_data);
 881     }
 882 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 883     else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 884         pkey = load_netscape_key(err, key, file, key_descrip, format);
 885 #endif
 886     else if (format == FORMAT_PKCS12) {
 887         if (!load_pkcs12(err, key, key_descrip,
 888                          (pem_password_cb *)password_callback, &cb_data,
 889                          &pkey, NULL, NULL))
 890             goto end;
 891     } else {
 892         BIO_printf(err, "bad input format specified for key file\n");
 893         goto end;
 894     }
 895  end:
 896     if (key != NULL)
 897         BIO_free(key);
 898     if (pkey == NULL) {
 899         BIO_printf(err, "unable to load %s\n", key_descrip);
 900         ERR_print_errors(err);
 901     }
 902     return (pkey);
 903 }
 904
 905 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
 906                       const char *pass, ENGINE *e, const char *key_descrip)
 907 {
 908     BIO *key = NULL;
 909     EVP_PKEY *pkey = NULL;
 910     PW_CB_DATA cb_data;
 911
 912     cb_data.password = pass;
 913     cb_data.prompt_info = file;
 914
 915     if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
 916         BIO_printf(err, "no keyfile specified\n");
 917         goto end;
 918     }
 919 #ifndef OPENSSL_NO_ENGINE
 920     if (format == FORMAT_ENGINE) {
 921         if (!e)
 922             BIO_printf(bio_err, "no engine specified\n");
 923         else
 924             pkey = ENGINE_load_public_key(e, file, ui_method, &cb_data);
 925         goto end;
 926     }
 927 #endif
 928     key = BIO_new(BIO_s_file());
 929     if (key == NULL) {
 930         ERR_print_errors(err);
 931         goto end;
 932     }
 933     if (file == NULL && maybe_stdin) {
 934         setvbuf(stdin, NULL, _IONBF, 0);
 935         BIO_set_fp(key, stdin, BIO_NOCLOSE);
 936     } else if (BIO_read_filename(key, file) <= 0) {
 937         BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 938         ERR_print_errors(err);
 939         goto end;
 940     }
 941     if (format == FORMAT_ASN1) {
 942         pkey = d2i_PUBKEY_bio(key, NULL);
 943     } else if (format == FORMAT_PEM) {
 944         pkey = PEM_read_bio_PUBKEY(key, NULL,
 945                                    (pem_password_cb *)password_callback,
 946                                    &cb_data);
 947     }
 948 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 949     else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 950         pkey = load_netscape_key(err, key, file, key_descrip, format);
 951 #endif
 952     else {
 953         BIO_printf(err, "bad input format specified for key file\n");
 954         goto end;
 955     }
 956  end:
 957     if (key != NULL)
 958         BIO_free(key);
 959     if (pkey == NULL)
 960         BIO_printf(err, "unable to load %s\n", key_descrip);
 961     return (pkey);
 962 }
 963
 964 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 965 static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
 966                                    const char *key_descrip, int format)
 967 {
 968     EVP_PKEY *pkey;
 969     BUF_MEM *buf;
 970     RSA *rsa;
 971     const unsigned char *p;
 972     int size, i;
 973
 974     buf = BUF_MEM_new();
 975     pkey = EVP_PKEY_new();
 976     size = 0;
 977     if (buf == NULL || pkey == NULL)
 978         goto error;
 979     for (;;) {
 980         if (!BUF_MEM_grow_clean(buf, size + 1024 * 10))
 981             goto error;
 982         i = BIO_read(key, &(buf->data[size]), 1024 * 10);
 983         size += i;
 984         if (i == 0)
 985             break;
 986         if (i < 0) {
 987             BIO_printf(err, "Error reading %s %s", key_descrip, file);
 988             goto error;
 989         }
 990     }
 991     p = (unsigned char *)buf->data;
 992     rsa = d2i_RSA_NET(NULL, &p, (long)size, NULL,
 993                       (format == FORMAT_IISSGC ? 1 : 0));
 994     if (rsa == NULL)
 995         goto error;
 996     BUF_MEM_free(buf);
 997     EVP_PKEY_set1_RSA(pkey, rsa);
 998     return pkey;
 999  error:
1000     BUF_MEM_free(buf);
1001     EVP_PKEY_free(pkey);
1002     return NULL;
1003 }
1004 #endif                          /* ndef OPENSSL_NO_RC4 */
1005
1006 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1007                            const char *pass, ENGINE *e,
1008                            const char *cert_descrip)
1009 {
1010     BIO *certs;
1011     int i;
1012     STACK_OF(X509) *othercerts = NULL;
1013     STACK_OF(X509_INFO) *allcerts = NULL;
1014     X509_INFO *xi;
1015     PW_CB_DATA cb_data;
1016
1017     cb_data.password = pass;
1018     cb_data.prompt_info = file;
1019
1020     if ((certs = BIO_new(BIO_s_file())) == NULL) {
1021         ERR_print_errors(err);
1022         goto end;
1023     }
1024
1025     if (file == NULL)
1026         BIO_set_fp(certs, stdin, BIO_NOCLOSE);
1027     else {
1028         if (BIO_read_filename(certs, file) <= 0) {
1029             BIO_printf(err, "Error opening %s %s\n", cert_descrip, file);
1030             ERR_print_errors(err);
1031             goto end;
1032         }
1033     }
1034
1035     if (format == FORMAT_PEM) {
1036         othercerts = sk_X509_new_null();
1037         if (!othercerts) {
1038             sk_X509_free(othercerts);
1039             othercerts = NULL;
1040             goto end;
1041         }
1042         allcerts = PEM_X509_INFO_read_bio(certs, NULL, (pem_password_cb *)
1043                                           password_callback, &cb_data);
1044         for (i = 0; i < sk_X509_INFO_num(allcerts); i++) {
1045             xi = sk_X509_INFO_value(allcerts, i);
1046             if (xi->x509) {
1047                 sk_X509_push(othercerts, xi->x509);
1048                 xi->x509 = NULL;
1049             }
1050         }
1051         goto end;
1052     } else {
1053         BIO_printf(err, "bad input format specified for %s\n", cert_descrip);
1054         goto end;
1055     }
1056  end:
1057     if (othercerts == NULL) {
1058         BIO_printf(err, "unable to load certificates\n");
1059         ERR_print_errors(err);
1060     }
1061     if (allcerts)
1062         sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1063     if (certs != NULL)
1064         BIO_free(certs);
1065     return (othercerts);
1066 }
1067
1068 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1069 /* Return error for unknown extensions */
1070 #define X509V3_EXT_DEFAULT              0
1071 /* Print error for unknown extensions */
1072 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1073 /* ASN1 parse unknown extensions */
1074 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1075 /* BIO_dump unknown extensions */
1076 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1077
1078 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1079                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1080
1081 int set_cert_ex(unsigned long *flags, const char *arg)
1082 {
1083     static const NAME_EX_TBL cert_tbl[] = {
1084         {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1085         {"ca_default", X509_FLAG_CA, 0xffffffffl},
1086         {"no_header", X509_FLAG_NO_HEADER, 0},
1087         {"no_version", X509_FLAG_NO_VERSION, 0},
1088         {"no_serial", X509_FLAG_NO_SERIAL, 0},
1089         {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1090         {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1091         {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1092         {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1093         {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1094         {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1095         {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1096         {"no_aux", X509_FLAG_NO_AUX, 0},
1097         {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1098         {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1099         {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1100         {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1101         {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1102         {NULL, 0, 0}
1103     };
1104     return set_multi_opts(flags, arg, cert_tbl);
1105 }
1106
1107 int set_name_ex(unsigned long *flags, const char *arg)
1108 {
1109     static const NAME_EX_TBL ex_tbl[] = {
1110         {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1111         {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1112         {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1113         {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1114         {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1115         {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1116         {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1117         {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1118         {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1119         {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1120         {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1121         {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1122         {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1123         {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1124         {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1125         {"dn_rev", XN_FLAG_DN_REV, 0},
1126         {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1127         {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1128         {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1129         {"align", XN_FLAG_FN_ALIGN, 0},
1130         {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1131         {"space_eq", XN_FLAG_SPC_EQ, 0},
1132         {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1133         {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1134         {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1135         {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1136         {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1137         {NULL, 0, 0}
1138     };
1139     return set_multi_opts(flags, arg, ex_tbl);
1140 }
1141
1142 int set_ext_copy(int *copy_type, const char *arg)
1143 {
1144     if (!strcasecmp(arg, "none"))
1145         *copy_type = EXT_COPY_NONE;
1146     else if (!strcasecmp(arg, "copy"))
1147         *copy_type = EXT_COPY_ADD;
1148     else if (!strcasecmp(arg, "copyall"))
1149         *copy_type = EXT_COPY_ALL;
1150     else
1151         return 0;
1152     return 1;
1153 }
1154
1155 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1156 {
1157     STACK_OF(X509_EXTENSION) *exts = NULL;
1158     X509_EXTENSION *ext, *tmpext;
1159     ASN1_OBJECT *obj;
1160     int i, idx, ret = 0;
1161     if (!x || !req || (copy_type == EXT_COPY_NONE))
1162         return 1;
1163     exts = X509_REQ_get_extensions(req);
1164
1165     for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1166         ext = sk_X509_EXTENSION_value(exts, i);
1167         obj = X509_EXTENSION_get_object(ext);
1168         idx = X509_get_ext_by_OBJ(x, obj, -1);
1169         /* Does extension exist? */
1170         if (idx != -1) {
1171             /* If normal copy don't override existing extension */
1172             if (copy_type == EXT_COPY_ADD)
1173                 continue;
1174             /* Delete all extensions of same type */
1175             do {
1176                 tmpext = X509_get_ext(x, idx);
1177                 X509_delete_ext(x, idx);
1178                 X509_EXTENSION_free(tmpext);
1179                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1180             } while (idx != -1);
1181         }
1182         if (!X509_add_ext(x, ext, -1))
1183             goto end;
1184     }
1185
1186     ret = 1;
1187
1188  end:
1189
1190     sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1191
1192     return ret;
1193 }
1194
1195 static int set_multi_opts(unsigned long *flags, const char *arg,
1196                           const NAME_EX_TBL * in_tbl)
1197 {
1198     STACK_OF(CONF_VALUE) *vals;
1199     CONF_VALUE *val;
1200     int i, ret = 1;
1201     if (!arg)
1202         return 0;
1203     vals = X509V3_parse_list(arg);
1204     for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1205         val = sk_CONF_VALUE_value(vals, i);
1206         if (!set_table_opts(flags, val->name, in_tbl))
1207             ret = 0;
1208     }
1209     sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1210     return ret;
1211 }
1212
1213 static int set_table_opts(unsigned long *flags, const char *arg,
1214                           const NAME_EX_TBL * in_tbl)
1215 {
1216     char c;
1217     const NAME_EX_TBL *ptbl;
1218     c = arg[0];
1219
1220     if (c == '-') {
1221         c = 0;
1222         arg++;
1223     } else if (c == '+') {
1224         c = 1;
1225         arg++;
1226     } else
1227         c = 1;
1228
1229     for (ptbl = in_tbl; ptbl->name; ptbl++) {
1230         if (!strcasecmp(arg, ptbl->name)) {
1231             *flags &= ~ptbl->mask;
1232             if (c)
1233                 *flags |= ptbl->flag;
1234             else
1235                 *flags &= ~ptbl->flag;
1236             return 1;
1237         }
1238     }
1239     return 0;
1240 }
1241
1242 void print_name(BIO *out, const char *title, X509_NAME *nm,
1243                 unsigned long lflags)
1244 {
1245     char *buf;
1246     char mline = 0;
1247     int indent = 0;
1248
1249     if (title)
1250         BIO_puts(out, title);
1251     if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1252         mline = 1;
1253         indent = 4;
1254     }
1255     if (lflags == XN_FLAG_COMPAT) {
1256         buf = X509_NAME_oneline(nm, 0, 0);
1257         BIO_puts(out, buf);
1258         BIO_puts(out, "\n");
1259         OPENSSL_free(buf);
1260     } else {
1261         if (mline)
1262             BIO_puts(out, "\n");
1263         X509_NAME_print_ex(out, nm, indent, lflags);
1264         BIO_puts(out, "\n");
1265     }
1266 }
1267
1268 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1269 {
1270     X509_STORE *store;
1271     X509_LOOKUP *lookup;
1272     if (!(store = X509_STORE_new()))
1273         goto end;
1274     lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1275     if (lookup == NULL)
1276         goto end;
1277     if (CAfile) {
1278         if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
1279             BIO_printf(bp, "Error loading file %s\n", CAfile);
1280             goto end;
1281         }
1282     } else
1283         X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
1284
1285     lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1286     if (lookup == NULL)
1287         goto end;
1288     if (CApath) {
1289         if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
1290             BIO_printf(bp, "Error loading directory %s\n", CApath);
1291             goto end;
1292         }
1293     } else
1294         X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1295
1296     ERR_clear_error();
1297     return store;
1298  end:
1299     X509_STORE_free(store);
1300     return NULL;
1301 }
1302
1303 #ifndef OPENSSL_NO_ENGINE
1304 /* Try to load an engine in a shareable library */
1305 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1306 {
1307     ENGINE *e = ENGINE_by_id("dynamic");
1308     if (e) {
1309         if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1310             || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
1311             ENGINE_free(e);
1312             e = NULL;
1313         }
1314     }
1315     return e;
1316 }
1317
1318 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1319 {
1320     ENGINE *e = NULL;
1321
1322     if (engine) {
1323         if (strcmp(engine, "auto") == 0) {
1324             BIO_printf(err, "enabling auto ENGINE support\n");
1325             ENGINE_register_all_complete();
1326             return NULL;
1327         }
1328         if ((e = ENGINE_by_id(engine)) == NULL
1329             && (e = try_load_engine(err, engine, debug)) == NULL) {
1330             BIO_printf(err, "invalid engine \"%s\"\n", engine);
1331             ERR_print_errors(err);
1332             return NULL;
1333         }
1334         if (debug) {
1335             ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, err, 0);
1336         }
1337         ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1338         if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1339             BIO_printf(err, "can't use that engine\n");
1340             ERR_print_errors(err);
1341             ENGINE_free(e);
1342             return NULL;
1343         }
1344
1345         BIO_printf(err, "engine \"%s\" set.\n", ENGINE_get_id(e));
1346
1347         /* Free our "structural" reference. */
1348         ENGINE_free(e);
1349     }
1350     return e;
1351 }
1352 #endif
1353
1354 int load_config(BIO *err, CONF *cnf)
1355 {
1356     if (!cnf)
1357         cnf = config;
1358     if (!cnf)
1359         return 1;
1360
1361     OPENSSL_load_builtin_modules();
1362
1363     if (CONF_modules_load(cnf, NULL, 0) <= 0) {
1364         BIO_printf(err, "Error configuring OpenSSL\n");
1365         ERR_print_errors(err);
1366         return 0;
1367     }
1368     return 1;
1369 }
1370
1371 char *make_config_name()
1372 {
1373     const char *t = X509_get_default_cert_area();
1374     size_t len;
1375     char *p;
1376
1377     len = strlen(t) + strlen(OPENSSL_CONF) + 2;
1378     p = OPENSSL_malloc(len);
1379     if (p == NULL)
1380         return NULL;
1381     BUF_strlcpy(p, t, len);
1382 #ifndef OPENSSL_SYS_VMS
1383     BUF_strlcat(p, "/", len);
1384 #endif
1385     BUF_strlcat(p, OPENSSL_CONF, len);
1386
1387     return p;
1388 }
1389
1390 static unsigned long index_serial_hash(const char **a)
1391 {
1392     const char *n;
1393
1394     n = a[DB_serial];
1395     while (*n == '0')
1396         n++;
1397     return (lh_strhash(n));
1398 }
1399
1400 static int index_serial_cmp(const char **a, const char **b)
1401 {
1402     const char *aa, *bb;
1403
1404     for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1405     for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1406     return (strcmp(aa, bb));
1407 }
1408
1409 static int index_name_qual(char **a)
1410 {
1411     return (a[0][0] == 'V');
1412 }
1413
1414 static unsigned long index_name_hash(const char **a)
1415 {
1416     return (lh_strhash(a[DB_name]));
1417 }
1418
1419 int index_name_cmp(const char **a, const char **b)
1420 {
1421     return (strcmp(a[DB_name], b[DB_name]));
1422 }
1423
1424 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash, const char **)
1425 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp, const char **)
1426 static IMPLEMENT_LHASH_HASH_FN(index_name_hash, const char **)
1427 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp, const char **)
1428 #undef BSIZE
1429 #define BSIZE 256
1430 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1431 {
1432     BIO *in = NULL;
1433     BIGNUM *ret = NULL;
1434     MS_STATIC char buf[1024];
1435     ASN1_INTEGER *ai = NULL;
1436
1437     ai = ASN1_INTEGER_new();
1438     if (ai == NULL)
1439         goto err;
1440
1441     if ((in = BIO_new(BIO_s_file())) == NULL) {
1442         ERR_print_errors(bio_err);
1443         goto err;
1444     }
1445
1446     if (BIO_read_filename(in, serialfile) <= 0) {
1447         if (!create) {
1448             perror(serialfile);
1449             goto err;
1450         } else {
1451             ret = BN_new();
1452             if (ret == NULL || !rand_serial(ret, ai))
1453                 BIO_printf(bio_err, "Out of memory\n");
1454         }
1455     } else {
1456         if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1457             BIO_printf(bio_err, "unable to load number from %s\n",
1458                        serialfile);
1459             goto err;
1460         }
1461         ret = ASN1_INTEGER_to_BN(ai, NULL);
1462         if (ret == NULL) {
1463             BIO_printf(bio_err,
1464                        "error converting number from bin to BIGNUM\n");
1465             goto err;
1466         }
1467     }
1468
1469     if (ret && retai) {
1470         *retai = ai;
1471         ai = NULL;
1472     }
1473  err:
1474     if (in != NULL)
1475         BIO_free(in);
1476     if (ai != NULL)
1477         ASN1_INTEGER_free(ai);
1478     return (ret);
1479 }
1480
1481 int save_serial(char *serialfile, char *suffix, BIGNUM *serial,
1482                 ASN1_INTEGER **retai)
1483 {
1484     char buf[1][BSIZE];
1485     BIO *out = NULL;
1486     int ret = 0;
1487     ASN1_INTEGER *ai = NULL;
1488     int j;
1489
1490     if (suffix == NULL)
1491         j = strlen(serialfile);
1492     else
1493         j = strlen(serialfile) + strlen(suffix) + 1;
1494     if (j >= BSIZE) {
1495         BIO_printf(bio_err, "file name too long\n");
1496         goto err;
1497     }
1498
1499     if (suffix == NULL)
1500         BUF_strlcpy(buf[0], serialfile, BSIZE);
1501     else {
1502 #ifndef OPENSSL_SYS_VMS
1503         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1504 #else
1505         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1506 #endif
1507     }
1508 #ifdef RL_DEBUG
1509     BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1510 #endif
1511     out = BIO_new(BIO_s_file());
1512     if (out == NULL) {
1513         ERR_print_errors(bio_err);
1514         goto err;
1515     }
1516     if (BIO_write_filename(out, buf[0]) <= 0) {
1517         perror(serialfile);
1518         goto err;
1519     }
1520
1521     if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1522         BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1523         goto err;
1524     }
1525     i2a_ASN1_INTEGER(out, ai);
1526     BIO_puts(out, "\n");
1527     ret = 1;
1528     if (retai) {
1529         *retai = ai;
1530         ai = NULL;
1531     }
1532  err:
1533     if (out != NULL)
1534         BIO_free_all(out);
1535     if (ai != NULL)
1536         ASN1_INTEGER_free(ai);
1537     return (ret);
1538 }
1539
1540 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1541 {
1542     char buf[5][BSIZE];
1543     int i, j;
1544     struct stat sb;
1545
1546     i = strlen(serialfile) + strlen(old_suffix);
1547     j = strlen(serialfile) + strlen(new_suffix);
1548     if (i > j)
1549         j = i;
1550     if (j + 1 >= BSIZE) {
1551         BIO_printf(bio_err, "file name too long\n");
1552         goto err;
1553     }
1554 #ifndef OPENSSL_SYS_VMS
1555     j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, new_suffix);
1556 #else
1557     j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, new_suffix);
1558 #endif
1559 #ifndef OPENSSL_SYS_VMS
1560     j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", serialfile, old_suffix);
1561 #else
1562     j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", serialfile, old_suffix);
1563 #endif
1564     if (stat(serialfile, &sb) < 0) {
1565         if (errno != ENOENT
1566 #ifdef ENOTDIR
1567             && errno != ENOTDIR
1568 #endif
1569             )
1570             goto err;
1571     } else {
1572 #ifdef RL_DEBUG
1573         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1574                    serialfile, buf[1]);
1575 #endif
1576         if (rename(serialfile, buf[1]) < 0) {
1577             BIO_printf(bio_err,
1578                        "unable to rename %s to %s\n", serialfile, buf[1]);
1579             perror("reason");
1580             goto err;
1581         }
1582     }
1583 #ifdef RL_DEBUG
1584     BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1585                buf[0], serialfile);
1586 #endif
1587     if (rename(buf[0], serialfile) < 0) {
1588         BIO_printf(bio_err,
1589                    "unable to rename %s to %s\n", buf[0], serialfile);
1590         perror("reason");
1591         rename(buf[1], serialfile);
1592         goto err;
1593     }
1594     return 1;
1595  err:
1596     return 0;
1597 }
1598
1599 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1600 {
1601     BIGNUM *btmp;
1602     int ret = 0;
1603     if (b)
1604         btmp = b;
1605     else
1606         btmp = BN_new();
1607
1608     if (!btmp)
1609         return 0;
1610
1611     if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1612         goto error;
1613     if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1614         goto error;
1615
1616     ret = 1;
1617
1618  error:
1619
1620     if (!b)
1621         BN_free(btmp);
1622
1623     return ret;
1624 }
1625
1626 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1627 {
1628     CA_DB *retdb = NULL;
1629     TXT_DB *tmpdb = NULL;
1630     BIO *in = BIO_new(BIO_s_file());
1631     CONF *dbattr_conf = NULL;
1632     char buf[1][BSIZE];
1633     long errorline = -1;
1634
1635     if (in == NULL) {
1636         ERR_print_errors(bio_err);
1637         goto err;
1638     }
1639     if (BIO_read_filename(in, dbfile) <= 0) {
1640         perror(dbfile);
1641         BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1642         goto err;
1643     }
1644     if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL) {
1645         if (tmpdb != NULL)
1646             TXT_DB_free(tmpdb);
1647         goto err;
1648     }
1649 #ifndef OPENSSL_SYS_VMS
1650     BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1651 #else
1652     BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1653 #endif
1654     dbattr_conf = NCONF_new(NULL);
1655     if (NCONF_load(dbattr_conf, buf[0], &errorline) <= 0) {
1656         if (errorline > 0) {
1657             BIO_printf(bio_err,
1658                        "error on line %ld of db attribute file '%s'\n",
1659                        errorline, buf[0]);
1660             goto err;
1661         } else {
1662             NCONF_free(dbattr_conf);
1663             dbattr_conf = NULL;
1664         }
1665     }
1666
1667     if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL) {
1668         fprintf(stderr, "Out of memory\n");
1669         goto err;
1670     }
1671
1672     retdb->db = tmpdb;
1673     tmpdb = NULL;
1674     if (db_attr)
1675         retdb->attributes = *db_attr;
1676     else {
1677         retdb->attributes.unique_subject = 1;
1678     }
1679
1680     if (dbattr_conf) {
1681         char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
1682         if (p) {
1683 #ifdef RL_DEBUG
1684             BIO_printf(bio_err,
1685                        "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1686 #endif
1687             retdb->attributes.unique_subject = parse_yesno(p, 1);
1688         }
1689     }
1690
1691  err:
1692     if (dbattr_conf)
1693         NCONF_free(dbattr_conf);
1694     if (tmpdb)
1695         TXT_DB_free(tmpdb);
1696     if (in)
1697         BIO_free_all(in);
1698     return retdb;
1699 }
1700
1701 int index_index(CA_DB *db)
1702 {
1703     if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1704                              LHASH_HASH_FN(index_serial_hash),
1705                              LHASH_COMP_FN(index_serial_cmp))) {
1706         BIO_printf(bio_err,
1707                    "error creating serial number index:(%ld,%ld,%ld)\n",
1708                    db->db->error, db->db->arg1, db->db->arg2);
1709         return 0;
1710     }
1711
1712     if (db->attributes.unique_subject
1713         && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1714                                 LHASH_HASH_FN(index_name_hash),
1715                                 LHASH_COMP_FN(index_name_cmp))) {
1716         BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
1717                    db->db->error, db->db->arg1, db->db->arg2);
1718         return 0;
1719     }
1720     return 1;
1721 }
1722
1723 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1724 {
1725     char buf[3][BSIZE];
1726     BIO *out = BIO_new(BIO_s_file());
1727     int j;
1728
1729     if (out == NULL) {
1730         ERR_print_errors(bio_err);
1731         goto err;
1732     }
1733
1734     j = strlen(dbfile) + strlen(suffix);
1735     if (j + 6 >= BSIZE) {
1736         BIO_printf(bio_err, "file name too long\n");
1737         goto err;
1738     }
1739 #ifndef OPENSSL_SYS_VMS
1740     j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1741 #else
1742     j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1743 #endif
1744 #ifndef OPENSSL_SYS_VMS
1745     j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1746 #else
1747     j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1748 #endif
1749 #ifndef OPENSSL_SYS_VMS
1750     j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1751 #else
1752     j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1753 #endif
1754 #ifdef RL_DEBUG
1755     BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1756 #endif
1757     if (BIO_write_filename(out, buf[0]) <= 0) {
1758         perror(dbfile);
1759         BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1760         goto err;
1761     }
1762     j = TXT_DB_write(out, db->db);
1763     if (j <= 0)
1764         goto err;
1765
1766     BIO_free(out);
1767
1768     out = BIO_new(BIO_s_file());
1769 #ifdef RL_DEBUG
1770     BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1771 #endif
1772     if (BIO_write_filename(out, buf[1]) <= 0) {
1773         perror(buf[2]);
1774         BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
1775         goto err;
1776     }
1777     BIO_printf(out, "unique_subject = %s\n",
1778                db->attributes.unique_subject ? "yes" : "no");
1779     BIO_free(out);
1780
1781     return 1;
1782  err:
1783     return 0;
1784 }
1785
1786 int rotate_index(const char *dbfile, const char *new_suffix,
1787                  const char *old_suffix)
1788 {
1789     char buf[5][BSIZE];
1790     int i, j;
1791     struct stat sb;
1792
1793     i = strlen(dbfile) + strlen(old_suffix);
1794     j = strlen(dbfile) + strlen(new_suffix);
1795     if (i > j)
1796         j = i;
1797     if (j + 6 >= BSIZE) {
1798         BIO_printf(bio_err, "file name too long\n");
1799         goto err;
1800     }
1801 #ifndef OPENSSL_SYS_VMS
1802     j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1803 #else
1804     j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1805 #endif
1806 #ifndef OPENSSL_SYS_VMS
1807     j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s", dbfile, new_suffix);
1808 #else
1809     j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s", dbfile, new_suffix);
1810 #endif
1811 #ifndef OPENSSL_SYS_VMS
1812     j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, new_suffix);
1813 #else
1814     j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, new_suffix);
1815 #endif
1816 #ifndef OPENSSL_SYS_VMS
1817     j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", dbfile, old_suffix);
1818 #else
1819     j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", dbfile, old_suffix);
1820 #endif
1821 #ifndef OPENSSL_SYS_VMS
1822     j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s", dbfile, old_suffix);
1823 #else
1824     j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s", dbfile, old_suffix);
1825 #endif
1826     if (stat(dbfile, &sb) < 0) {
1827         if (errno != ENOENT
1828 #ifdef ENOTDIR
1829             && errno != ENOTDIR
1830 #endif
1831             )
1832             goto err;
1833     } else {
1834 #ifdef RL_DEBUG
1835         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1836                    dbfile, buf[1]);
1837 #endif
1838         if (rename(dbfile, buf[1]) < 0) {
1839             BIO_printf(bio_err,
1840                        "unable to rename %s to %s\n", dbfile, buf[1]);
1841             perror("reason");
1842             goto err;
1843         }
1844     }
1845 #ifdef RL_DEBUG
1846     BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[0], dbfile);
1847 #endif
1848     if (rename(buf[0], dbfile) < 0) {
1849         BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
1850         perror("reason");
1851         rename(buf[1], dbfile);
1852         goto err;
1853     }
1854     if (stat(buf[4], &sb) < 0) {
1855         if (errno != ENOENT
1856 #ifdef ENOTDIR
1857             && errno != ENOTDIR
1858 #endif
1859             )
1860             goto err;
1861     } else {
1862 #ifdef RL_DEBUG
1863         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1864                    buf[4], buf[3]);
1865 #endif
1866         if (rename(buf[4], buf[3]) < 0) {
1867             BIO_printf(bio_err,
1868                        "unable to rename %s to %s\n", buf[4], buf[3]);
1869             perror("reason");
1870             rename(dbfile, buf[0]);
1871             rename(buf[1], dbfile);
1872             goto err;
1873         }
1874     }
1875 #ifdef RL_DEBUG
1876     BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[2], buf[4]);
1877 #endif
1878     if (rename(buf[2], buf[4]) < 0) {
1879         BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
1880         perror("reason");
1881         rename(buf[3], buf[4]);
1882         rename(dbfile, buf[0]);
1883         rename(buf[1], dbfile);
1884         goto err;
1885     }
1886     return 1;
1887  err:
1888     return 0;
1889 }
1890
1891 void free_index(CA_DB *db)
1892 {
1893     if (db) {
1894         if (db->db)
1895             TXT_DB_free(db->db);
1896         OPENSSL_free(db);
1897     }
1898 }
1899
1900 int parse_yesno(const char *str, int def)
1901 {
1902     int ret = def;
1903     if (str) {
1904         switch (*str) {
1905         case 'f':              /* false */
1906         case 'F':              /* FALSE */
1907         case 'n':              /* no */
1908         case 'N':              /* NO */
1909         case '0':              /* 0 */
1910             ret = 0;
1911             break;
1912         case 't':              /* true */
1913         case 'T':              /* TRUE */
1914         case 'y':              /* yes */
1915         case 'Y':              /* YES */
1916         case '1':              /* 1 */
1917             ret = 1;
1918             break;
1919         default:
1920             ret = def;
1921             break;
1922         }
1923     }
1924     return ret;
1925 }
1926
1927 /*
1928  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1929  * where characters may be escaped by \
1930  */
1931 X509_NAME *parse_name(char *subject, long chtype, int multirdn)
1932 {
1933     size_t buflen = strlen(subject) + 1; /* to copy the types and values
1934                                           * into. due to escaping, the copy
1935                                           * can only become shorter */
1936     char *buf = OPENSSL_malloc(buflen);
1937     size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
1938     char **ne_types = OPENSSL_malloc(max_ne * sizeof(char *));
1939     char **ne_values = OPENSSL_malloc(max_ne * sizeof(char *));
1940     int *mval = OPENSSL_malloc(max_ne * sizeof(int));
1941
1942     char *sp = subject, *bp = buf;
1943     int i, ne_num = 0;
1944
1945     X509_NAME *n = NULL;
1946     int nid;
1947
1948     if (!buf || !ne_types || !ne_values || !mval) {
1949         BIO_printf(bio_err, "malloc error\n");
1950         goto error;
1951     }
1952
1953     if (*subject != '/') {
1954         BIO_printf(bio_err, "Subject does not start with '/'.\n");
1955         goto error;
1956     }
1957     sp++;                       /* skip leading / */
1958
1959     /* no multivalued RDN by default */
1960     mval[ne_num] = 0;
1961
1962     while (*sp) {
1963         /* collect type */
1964         ne_types[ne_num] = bp;
1965         while (*sp) {
1966             if (*sp == '\\') {  /* is there anything to escape in the
1967                                  * type...? */
1968                 if (*++sp)
1969                     *bp++ = *sp++;
1970                 else {
1971                     BIO_printf(bio_err,
1972                                "escape character at end of string\n");
1973                     goto error;
1974                 }
1975             } else if (*sp == '=') {
1976                 sp++;
1977                 *bp++ = '\0';
1978                 break;
1979             } else
1980                 *bp++ = *sp++;
1981         }
1982         if (!*sp) {
1983             BIO_printf(bio_err,
1984                        "end of string encountered while processing type of subject name element #%d\n",
1985                        ne_num);
1986             goto error;
1987         }
1988         ne_values[ne_num] = bp;
1989         while (*sp) {
1990             if (*sp == '\\') {
1991                 if (*++sp)
1992                     *bp++ = *sp++;
1993                 else {
1994                     BIO_printf(bio_err,
1995                                "escape character at end of string\n");
1996                     goto error;
1997                 }
1998             } else if (*sp == '/') {
1999                 sp++;
2000                 /* no multivalued RDN by default */
2001                 mval[ne_num + 1] = 0;
2002                 break;
2003             } else if (*sp == '+' && multirdn) {
2004                 /*
2005                  * a not escaped + signals a mutlivalued RDN
2006                  */
2007                 sp++;
2008                 mval[ne_num + 1] = -1;
2009                 break;
2010             } else
2011                 *bp++ = *sp++;
2012         }
2013         *bp++ = '\0';
2014         ne_num++;
2015     }
2016
2017     if (!(n = X509_NAME_new()))
2018         goto error;
2019
2020     for (i = 0; i < ne_num; i++) {
2021         if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
2022             BIO_printf(bio_err,
2023                        "Subject Attribute %s has no known NID, skipped\n",
2024                        ne_types[i]);
2025             continue;
2026         }
2027
2028         if (!*ne_values[i]) {
2029             BIO_printf(bio_err,
2030                        "No value provided for Subject Attribute %s, skipped\n",
2031                        ne_types[i]);
2032             continue;
2033         }
2034
2035         if (!X509_NAME_add_entry_by_NID
2036             (n, nid, chtype, (unsigned char *)ne_values[i], -1, -1, mval[i]))
2037             goto error;
2038     }
2039
2040     OPENSSL_free(ne_values);
2041     OPENSSL_free(ne_types);
2042     OPENSSL_free(buf);
2043     OPENSSL_free(mval);
2044     return n;
2045
2046  error:
2047     X509_NAME_free(n);
2048     if (ne_values)
2049         OPENSSL_free(ne_values);
2050     if (ne_types)
2051         OPENSSL_free(ne_types);
2052     if (mval)
2053         OPENSSL_free(mval);
2054     if (buf)
2055         OPENSSL_free(buf);
2056     return NULL;
2057 }
2058
2059 /* This code MUST COME AFTER anything that uses rename() */
2060 #ifdef OPENSSL_SYS_WIN32
2061 int WIN32_rename(const char *from, const char *to)
2062 {
2063 # ifndef OPENSSL_SYS_WINCE
2064     /*
2065      * Windows rename gives an error if 'to' exists, so delete it first and
2066      * ignore file not found errror
2067      */
2068     if ((remove(to) != 0) && (errno != ENOENT))
2069         return -1;
2070 #  undef rename
2071     return rename(from, to);
2072 # else
2073     /* convert strings to UNICODE */
2074     {
2075         BOOL result = FALSE;
2076         WCHAR *wfrom;
2077         WCHAR *wto;
2078         int i;
2079         wfrom = malloc((strlen(from) + 1) * 2);
2080         wto = malloc((strlen(to) + 1) * 2);
2081         if (wfrom != NULL && wto != NULL) {
2082             for (i = 0; i < (int)strlen(from) + 1; i++)
2083                 wfrom[i] = (short)from[i];
2084             for (i = 0; i < (int)strlen(to) + 1; i++)
2085                 wto[i] = (short)to[i];
2086             result = MoveFile(wfrom, wto);
2087         }
2088         if (wfrom != NULL)
2089             free(wfrom);
2090         if (wto != NULL)
2091             free(wto);
2092         return result;
2093     }
2094 # endif
2095 }
2096 #endif
2097
2098 int args_verify(char ***pargs, int *pargc,
2099                 int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2100 {
2101     ASN1_OBJECT *otmp = NULL;
2102     unsigned long flags = 0;
2103     int i;
2104     int purpose = 0;
2105     char **oldargs = *pargs;
2106     char *arg = **pargs, *argn = (*pargs)[1];
2107     if (!strcmp(arg, "-policy")) {
2108         if (!argn)
2109             *badarg = 1;
2110         else {
2111             otmp = OBJ_txt2obj(argn, 0);
2112             if (!otmp) {
2113                 BIO_printf(err, "Invalid Policy \"%s\"\n", argn);
2114                 *badarg = 1;
2115             }
2116         }
2117         (*pargs)++;
2118     } else if (strcmp(arg, "-purpose") == 0) {
2119         X509_PURPOSE *xptmp;
2120         if (!argn)
2121             *badarg = 1;
2122         else {
2123             i = X509_PURPOSE_get_by_sname(argn);
2124             if (i < 0) {
2125                 BIO_printf(err, "unrecognized purpose\n");
2126                 *badarg = 1;
2127             } else {
2128                 xptmp = X509_PURPOSE_get0(i);
2129                 purpose = X509_PURPOSE_get_id(xptmp);
2130             }
2131         }
2132         (*pargs)++;
2133     } else if (!strcmp(arg, "-ignore_critical"))
2134         flags |= X509_V_FLAG_IGNORE_CRITICAL;
2135     else if (!strcmp(arg, "-issuer_checks"))
2136         flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2137     else if (!strcmp(arg, "-crl_check"))
2138         flags |= X509_V_FLAG_CRL_CHECK;
2139     else if (!strcmp(arg, "-crl_check_all"))
2140         flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
2141     else if (!strcmp(arg, "-policy_check"))
2142         flags |= X509_V_FLAG_POLICY_CHECK;
2143     else if (!strcmp(arg, "-explicit_policy"))
2144         flags |= X509_V_FLAG_EXPLICIT_POLICY;
2145     else if (!strcmp(arg, "-x509_strict"))
2146         flags |= X509_V_FLAG_X509_STRICT;
2147     else if (!strcmp(arg, "-policy_print"))
2148         flags |= X509_V_FLAG_NOTIFY_POLICY;
2149     else if (!strcmp(arg, "-check_ss_sig"))
2150         flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2151     else
2152         return 0;
2153
2154     if (*badarg) {
2155         if (*pm)
2156             X509_VERIFY_PARAM_free(*pm);
2157         *pm = NULL;
2158         goto end;
2159     }
2160
2161     if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
2162         *badarg = 1;
2163         goto end;
2164     }
2165
2166     if (otmp)
2167         X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2168     if (flags)
2169         X509_VERIFY_PARAM_set_flags(*pm, flags);
2170
2171     if (purpose)
2172         X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2173
2174  end:
2175
2176     (*pargs)++;
2177
2178     if (pargc)
2179         *pargc -= *pargs - oldargs;
2180
2181     return 1;
2182
2183 }
2184
2185 static void nodes_print(BIO *out, const char *name,
2186                         STACK_OF(X509_POLICY_NODE) *nodes)
2187 {
2188     X509_POLICY_NODE *node;
2189     int i;
2190     BIO_printf(out, "%s Policies:", name);
2191     if (nodes) {
2192         BIO_puts(out, "\n");
2193         for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2194             node = sk_X509_POLICY_NODE_value(nodes, i);
2195             X509_POLICY_NODE_print(out, node, 2);
2196         }
2197     } else
2198         BIO_puts(out, " <empty>\n");
2199 }
2200
2201 void policies_print(BIO *out, X509_STORE_CTX *ctx)
2202 {
2203     X509_POLICY_TREE *tree;
2204     int explicit_policy;
2205     int free_out = 0;
2206     if (out == NULL) {
2207         out = BIO_new_fp(stderr, BIO_NOCLOSE);
2208         free_out = 1;
2209     }
2210     tree = X509_STORE_CTX_get0_policy_tree(ctx);
2211     explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2212
2213     BIO_printf(out, "Require explicit Policy: %s\n",
2214                explicit_policy ? "True" : "False");
2215
2216     nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2217     nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2218     if (free_out)
2219         BIO_free(out);
2220 }
2221
2222 #ifndef OPENSSL_NO_JPAKE
2223
2224 static JPAKE_CTX *jpake_init(const char *us, const char *them,
2225                              const char *secret)
2226 {
2227     BIGNUM *p = NULL;
2228     BIGNUM *g = NULL;
2229     BIGNUM *q = NULL;
2230     BIGNUM *bnsecret = BN_new();
2231     JPAKE_CTX *ctx;
2232
2233     /* Use a safe prime for p (that we found earlier) */
2234     BN_hex2bn(&p,
2235               "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2236     g = BN_new();
2237     BN_set_word(g, 2);
2238     q = BN_new();
2239     BN_rshift1(q, p);
2240
2241     BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2242
2243     ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2244     BN_free(bnsecret);
2245     BN_free(q);
2246     BN_free(g);
2247     BN_free(p);
2248
2249     return ctx;
2250 }
2251
2252 static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2253 {
2254     BN_print(conn, p->gx);
2255     BIO_puts(conn, "\n");
2256     BN_print(conn, p->zkpx.gr);
2257     BIO_puts(conn, "\n");
2258     BN_print(conn, p->zkpx.b);
2259     BIO_puts(conn, "\n");
2260 }
2261
2262 static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2263 {
2264     JPAKE_STEP1 s1;
2265
2266     JPAKE_STEP1_init(&s1);
2267     JPAKE_STEP1_generate(&s1, ctx);
2268     jpake_send_part(bconn, &s1.p1);
2269     jpake_send_part(bconn, &s1.p2);
2270     (void)BIO_flush(bconn);
2271     JPAKE_STEP1_release(&s1);
2272 }
2273
2274 static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2275 {
2276     JPAKE_STEP2 s2;
2277
2278     JPAKE_STEP2_init(&s2);
2279     JPAKE_STEP2_generate(&s2, ctx);
2280     jpake_send_part(bconn, &s2);
2281     (void)BIO_flush(bconn);
2282     JPAKE_STEP2_release(&s2);
2283 }
2284
2285 static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2286 {
2287     JPAKE_STEP3A s3a;
2288
2289     JPAKE_STEP3A_init(&s3a);
2290     JPAKE_STEP3A_generate(&s3a, ctx);
2291     BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2292     (void)BIO_flush(bconn);
2293     JPAKE_STEP3A_release(&s3a);
2294 }
2295
2296 static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2297 {
2298     JPAKE_STEP3B s3b;
2299
2300     JPAKE_STEP3B_init(&s3b);
2301     JPAKE_STEP3B_generate(&s3b, ctx);
2302     BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2303     (void)BIO_flush(bconn);
2304     JPAKE_STEP3B_release(&s3b);
2305 }
2306
2307 static void readbn(BIGNUM **bn, BIO *bconn)
2308 {
2309     char buf[10240];
2310     int l;
2311
2312     l = BIO_gets(bconn, buf, sizeof buf);
2313     assert(l > 0);
2314     assert(buf[l - 1] == '\n');
2315     buf[l - 1] = '\0';
2316     BN_hex2bn(bn, buf);
2317 }
2318
2319 static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2320 {
2321     readbn(&p->gx, bconn);
2322     readbn(&p->zkpx.gr, bconn);
2323     readbn(&p->zkpx.b, bconn);
2324 }
2325
2326 static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2327 {
2328     JPAKE_STEP1 s1;
2329
2330     JPAKE_STEP1_init(&s1);
2331     jpake_receive_part(&s1.p1, bconn);
2332     jpake_receive_part(&s1.p2, bconn);
2333     if (!JPAKE_STEP1_process(ctx, &s1)) {
2334         ERR_print_errors(bio_err);
2335         exit(1);
2336     }
2337     JPAKE_STEP1_release(&s1);
2338 }
2339
2340 static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2341 {
2342     JPAKE_STEP2 s2;
2343
2344     JPAKE_STEP2_init(&s2);
2345     jpake_receive_part(&s2, bconn);
2346     if (!JPAKE_STEP2_process(ctx, &s2)) {
2347         ERR_print_errors(bio_err);
2348         exit(1);
2349     }
2350     JPAKE_STEP2_release(&s2);
2351 }
2352
2353 static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2354 {
2355     JPAKE_STEP3A s3a;
2356     int l;
2357
2358     JPAKE_STEP3A_init(&s3a);
2359     l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2360     assert(l == sizeof s3a.hhk);
2361     if (!JPAKE_STEP3A_process(ctx, &s3a)) {
2362         ERR_print_errors(bio_err);
2363         exit(1);
2364     }
2365     JPAKE_STEP3A_release(&s3a);
2366 }
2367
2368 static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2369 {
2370     JPAKE_STEP3B s3b;
2371     int l;
2372
2373     JPAKE_STEP3B_init(&s3b);
2374     l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2375     assert(l == sizeof s3b.hk);
2376     if (!JPAKE_STEP3B_process(ctx, &s3b)) {
2377         ERR_print_errors(bio_err);
2378         exit(1);
2379     }
2380     JPAKE_STEP3B_release(&s3b);
2381 }
2382
2383 void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2384 {
2385     JPAKE_CTX *ctx;
2386     BIO *bconn;
2387
2388     BIO_puts(out, "Authenticating with JPAKE\n");
2389
2390     ctx = jpake_init("client", "server", secret);
2391
2392     bconn = BIO_new(BIO_f_buffer());
2393     BIO_push(bconn, conn);
2394
2395     jpake_send_step1(bconn, ctx);
2396     jpake_receive_step1(ctx, bconn);
2397     jpake_send_step2(bconn, ctx);
2398     jpake_receive_step2(ctx, bconn);
2399     jpake_send_step3a(bconn, ctx);
2400     jpake_receive_step3b(ctx, bconn);
2401
2402     /*
2403      * The problem is that you must use the derived key in the
2404      * session key or you are subject to man-in-the-middle
2405      * attacks.
2406      */
2407     BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2408              " be MitMed. See the version in HEAD for how to do it"
2409              " properly)\n");
2410
2411     BIO_pop(bconn);
2412     BIO_free(bconn);
2413 }
2414
2415 void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2416 {
2417     JPAKE_CTX *ctx;
2418     BIO *bconn;
2419
2420     BIO_puts(out, "Authenticating with JPAKE\n");
2421
2422     ctx = jpake_init("server", "client", secret);
2423
2424     bconn = BIO_new(BIO_f_buffer());
2425     BIO_push(bconn, conn);
2426
2427     jpake_receive_step1(ctx, bconn);
2428     jpake_send_step1(bconn, ctx);
2429     jpake_receive_step2(ctx, bconn);
2430     jpake_send_step2(bconn, ctx);
2431     jpake_receive_step3a(ctx, bconn);
2432     jpake_send_step3b(bconn, ctx);
2433
2434     /*
2435      * The problem is that you must use the derived key in the
2436      * session key or you are subject to man-in-the-middle
2437      * attacks.
2438      */
2439     BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2440              " be MitMed. See the version in HEAD for how to do it"
2441              " properly)\n");
2442
2443     BIO_pop(bconn);
2444     BIO_free(bconn);
2445 }
2446
2447 #endif