crypto/openssl/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, const NAME_EX_TBL *in_tbl);
 150 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 151
 152 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 153 /* Looks like this stuff is worth moving into separate function */
 154 static EVP_PKEY *
 155 load_netscape_key(BIO *err, BIO *key, const char *file,
 156                 const char *key_descrip, int format);
 157 #endif
 158
 159 int app_init(long mesgwin);
 160 #ifdef undef /* never finished - probably never will be :-) */
 161 int args_from_file(char *file, int *argc, char **argv[])
 162         {
 163         FILE *fp;
 164         int num,i;
 165         unsigned int len;
 166         static char *buf=NULL;
 167         static char **arg=NULL;
 168         char *p;
 169         struct stat stbuf;
 170
 171         if (stat(file,&stbuf) < 0) return(0);
 172
 173         fp=fopen(file,"r");
 174         if (fp == NULL)
 175                 return(0);
 176
 177         *argc=0;
 178         *argv=NULL;
 179
 180         len=(unsigned int)stbuf.st_size;
 181         if (buf != NULL) OPENSSL_free(buf);
 182         buf=(char *)OPENSSL_malloc(len+1);
 183         if (buf == NULL) return(0);
 184
 185         len=fread(buf,1,len,fp);
 186         if (len <= 1) return(0);
 187         buf[len]='\0';
 188
 189         i=0;
 190         for (p=buf; *p; p++)
 191                 if (*p == '\n') i++;
 192         if (arg != NULL) OPENSSL_free(arg);
 193         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 194
 195         *argv=arg;
 196         num=0;
 197         p=buf;
 198         for (;;)
 199                 {
 200                 if (!*p) break;
 201                 if (*p == '#') /* comment line */
 202                         {
 203                         while (*p && (*p != '\n')) p++;
 204                         continue;
 205                         }
 206                 /* else we have a line */
 207                 *(arg++)=p;
 208                 num++;
 209                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 210                         p++;
 211                 if (!*p) break;
 212                 if (*p == '\n')
 213                         {
 214                         *(p++)='\0';
 215                         continue;
 216                         }
 217                 /* else it is a tab or space */
 218                 p++;
 219                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 220                         p++;
 221                 if (!*p) break;
 222                 if (*p == '\n')
 223                         {
 224                         p++;
 225                         continue;
 226                         }
 227                 *(arg++)=p++;
 228                 num++;
 229                 while (*p && (*p != '\n')) p++;
 230                 if (!*p) break;
 231                 /* else *p == '\n' */
 232                 *(p++)='\0';
 233                 }
 234         *argc=num;
 235         return(1);
 236         }
 237 #endif
 238
 239 int str2fmt(char *s)
 240         {
 241         if      ((*s == 'D') || (*s == 'd'))
 242                 return(FORMAT_ASN1);
 243         else if ((*s == 'T') || (*s == 't'))
 244                 return(FORMAT_TEXT);
 245         else if ((*s == 'P') || (*s == 'p'))
 246                 return(FORMAT_PEM);
 247         else if ((*s == 'N') || (*s == 'n'))
 248                 return(FORMAT_NETSCAPE);
 249         else if ((*s == 'S') || (*s == 's'))
 250                 return(FORMAT_SMIME);
 251         else if ((*s == '1')
 252                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 253                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 254                 return(FORMAT_PKCS12);
 255         else if ((*s == 'E') || (*s == 'e'))
 256                 return(FORMAT_ENGINE);
 257         else
 258                 return(FORMAT_UNDEF);
 259         }
 260
 261 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
 262 void program_name(char *in, char *out, int size)
 263         {
 264         int i,n;
 265         char *p=NULL;
 266
 267         n=strlen(in);
 268         /* find the last '/', '\' or ':' */
 269         for (i=n-1; i>0; i--)
 270                 {
 271                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 272                         {
 273                         p= &(in[i+1]);
 274                         break;
 275                         }
 276                 }
 277         if (p == NULL)
 278                 p=in;
 279         n=strlen(p);
 280
 281 #if defined(OPENSSL_SYS_NETWARE)
 282    /* strip off trailing .nlm if present. */
 283    if ((n > 4) && (p[n-4] == '.') &&
 284       ((p[n-3] == 'n') || (p[n-3] == 'N')) &&
 285       ((p[n-2] == 'l') || (p[n-2] == 'L')) &&
 286       ((p[n-1] == 'm') || (p[n-1] == 'M')))
 287       n-=4;
 288 #else
 289         /* strip off trailing .exe if present. */
 290         if ((n > 4) && (p[n-4] == '.') &&
 291                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 292                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 293                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 294                 n-=4;
 295 #endif
 296
 297         if (n > size-1)
 298                 n=size-1;
 299
 300         for (i=0; i<n; i++)
 301                 {
 302                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 303                         out[i]=p[i]-'A'+'a';
 304                 else
 305                         out[i]=p[i];
 306                 }
 307         out[n]='\0';
 308         }
 309 #else
 310 #ifdef OPENSSL_SYS_VMS
 311 void program_name(char *in, char *out, int size)
 312         {
 313         char *p=in, *q;
 314         char *chars=":]>";
 315
 316         while(*chars != '\0')
 317                 {
 318                 q=strrchr(p,*chars);
 319                 if (q > p)
 320                         p = q + 1;
 321                 chars++;
 322                 }
 323
 324         q=strrchr(p,'.');
 325         if (q == NULL)
 326                 q = p + strlen(p);
 327         strncpy(out,p,size-1);
 328         if (q-p >= size)
 329                 {
 330                 out[size-1]='\0';
 331                 }
 332         else
 333                 {
 334                 out[q-p]='\0';
 335                 }
 336         }
 337 #else
 338 void program_name(char *in, char *out, int size)
 339         {
 340         char *p;
 341
 342         p=strrchr(in,'/');
 343         if (p != NULL)
 344                 p++;
 345         else
 346                 p=in;
 347         BUF_strlcpy(out,p,size);
 348         }
 349 #endif
 350 #endif
 351
 352 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 353         {
 354         int num,len,i;
 355         char *p;
 356
 357         *argc=0;
 358         *argv=NULL;
 359
 360         len=strlen(buf);
 361         i=0;
 362         if (arg->count == 0)
 363                 {
 364                 arg->count=20;
 365                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 366                 }
 367         for (i=0; i<arg->count; i++)
 368                 arg->data[i]=NULL;
 369
 370         num=0;
 371         p=buf;
 372         for (;;)
 373                 {
 374                 /* first scan over white space */
 375                 if (!*p) break;
 376                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 377                         p++;
 378                 if (!*p) break;
 379
 380                 /* The start of something good :-) */
 381                 if (num >= arg->count)
 382                         {
 383                         char **tmp_p;
 384                         int tlen = arg->count + 20;
 385                         tmp_p = (char **)OPENSSL_realloc(arg->data,
 386                                 sizeof(char *)*tlen);
 387                         if (tmp_p == NULL)
 388                                 return 0;
 389                         arg->data  = tmp_p;
 390                         arg->count = tlen;
 391                         /* initialize newly allocated data */
 392                         for (i = num; i < arg->count; i++)
 393                                 arg->data[i] = NULL;
 394                         }
 395                 arg->data[num++]=p;
 396
 397                 /* now look for the end of this */
 398                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 399                         {
 400                         i= *(p++);
 401                         arg->data[num-1]++; /* jump over quote */
 402                         while (*p && (*p != i))
 403                                 p++;
 404                         *p='\0';
 405                         }
 406                 else
 407                         {
 408                         while (*p && ((*p != ' ') &&
 409                                 (*p != '\t') && (*p != '\n')))
 410                                 p++;
 411
 412                         if (*p == '\0')
 413                                 p--;
 414                         else
 415                                 *p='\0';
 416                         }
 417                 p++;
 418                 }
 419         *argc=num;
 420         *argv=arg->data;
 421         return(1);
 422         }
 423
 424 #ifndef APP_INIT
 425 int app_init(long mesgwin)
 426         {
 427         return(1);
 428         }
 429 #endif
 430
 431
 432 int dump_cert_text (BIO *out, X509 *x)
 433 {
 434         char *p;
 435
 436         p=X509_NAME_oneline(X509_get_subject_name(x),NULL,0);
 437         BIO_puts(out,"subject=");
 438         BIO_puts(out,p);
 439         OPENSSL_free(p);
 440
 441         p=X509_NAME_oneline(X509_get_issuer_name(x),NULL,0);
 442         BIO_puts(out,"\nissuer=");
 443         BIO_puts(out,p);
 444         BIO_puts(out,"\n");
 445         OPENSSL_free(p);
 446
 447         return 0;
 448 }
 449
 450 static int ui_open(UI *ui)
 451         {
 452         return UI_method_get_opener(UI_OpenSSL())(ui);
 453         }
 454 static int ui_read(UI *ui, UI_STRING *uis)
 455         {
 456         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 457                 && UI_get0_user_data(ui))
 458                 {
 459                 switch(UI_get_string_type(uis))
 460                         {
 461                 case UIT_PROMPT:
 462                 case UIT_VERIFY:
 463                         {
 464                         const char *password =
 465                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 466                         if (password && password[0] != '\0')
 467                                 {
 468                                 UI_set_result(ui, uis, password);
 469                                 return 1;
 470                                 }
 471                         }
 472                 default:
 473                         break;
 474                         }
 475                 }
 476         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 477         }
 478 static int ui_write(UI *ui, UI_STRING *uis)
 479         {
 480         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 481                 && UI_get0_user_data(ui))
 482                 {
 483                 switch(UI_get_string_type(uis))
 484                         {
 485                 case UIT_PROMPT:
 486                 case UIT_VERIFY:
 487                         {
 488                         const char *password =
 489                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 490                         if (password && password[0] != '\0')
 491                                 return 1;
 492                         }
 493                 default:
 494                         break;
 495                         }
 496                 }
 497         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 498         }
 499 static int ui_close(UI *ui)
 500         {
 501         return UI_method_get_closer(UI_OpenSSL())(ui);
 502         }
 503 int setup_ui_method(void)
 504         {
 505         ui_method = UI_create_method("OpenSSL application user interface");
 506         UI_method_set_opener(ui_method, ui_open);
 507         UI_method_set_reader(ui_method, ui_read);
 508         UI_method_set_writer(ui_method, ui_write);
 509         UI_method_set_closer(ui_method, ui_close);
 510         return 0;
 511         }
 512 void destroy_ui_method(void)
 513         {
 514         if(ui_method)
 515                 {
 516                 UI_destroy_method(ui_method);
 517                 ui_method = NULL;
 518                 }
 519         }
 520 int password_callback(char *buf, int bufsiz, int verify,
 521         PW_CB_DATA *cb_tmp)
 522         {
 523         UI *ui = NULL;
 524         int res = 0;
 525         const char *prompt_info = NULL;
 526         const char *password = NULL;
 527         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 528
 529         if (cb_data)
 530                 {
 531                 if (cb_data->password)
 532                         password = cb_data->password;
 533                 if (cb_data->prompt_info)
 534                         prompt_info = cb_data->prompt_info;
 535                 }
 536
 537         if (password)
 538                 {
 539                 res = strlen(password);
 540                 if (res > bufsiz)
 541                         res = bufsiz;
 542                 memcpy(buf, password, res);
 543                 return res;
 544                 }
 545
 546         ui = UI_new_method(ui_method);
 547         if (ui)
 548                 {
 549                 int ok = 0;
 550                 char *buff = NULL;
 551                 int ui_flags = 0;
 552                 char *prompt = NULL;
 553
 554                 prompt = UI_construct_prompt(ui, "pass phrase",
 555                         prompt_info);
 556
 557                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 558                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 559
 560                 if (ok >= 0)
 561                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
 562                                 PW_MIN_LENGTH,BUFSIZ-1);
 563                 if (ok >= 0 && verify)
 564                         {
 565                         buff = (char *)OPENSSL_malloc(bufsiz);
 566                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
 567                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
 568                         }
 569                 if (ok >= 0)
 570                         do
 571                                 {
 572                                 ok = UI_process(ui);
 573                                 }
 574                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 575
 576                 if (buff)
 577                         {
 578                         OPENSSL_cleanse(buff,(unsigned int)bufsiz);
 579                         OPENSSL_free(buff);
 580                         }
 581
 582                 if (ok >= 0)
 583                         res = strlen(buf);
 584                 if (ok == -1)
 585                         {
 586                         BIO_printf(bio_err, "User interface error\n");
 587                         ERR_print_errors(bio_err);
 588                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 589                         res = 0;
 590                         }
 591                 if (ok == -2)
 592                         {
 593                         BIO_printf(bio_err,"aborted!\n");
 594                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 595                         res = 0;
 596                         }
 597                 UI_free(ui);
 598                 OPENSSL_free(prompt);
 599                 }
 600         return res;
 601         }
 602
 603 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 604
 605 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 606 {
 607         int same;
 608         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 609         else same = 1;
 610         if(arg1) {
 611                 *pass1 = app_get_pass(err, arg1, same);
 612                 if(!*pass1) return 0;
 613         } else if(pass1) *pass1 = NULL;
 614         if(arg2) {
 615                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 616                 if(!*pass2) return 0;
 617         } else if(pass2) *pass2 = NULL;
 618         return 1;
 619 }
 620
 621 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 622 {
 623         char *tmp, tpass[APP_PASS_LEN];
 624         static BIO *pwdbio = NULL;
 625         int i;
 626         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 627         if(!strncmp(arg, "env:", 4)) {
 628                 tmp = getenv(arg + 4);
 629                 if(!tmp) {
 630                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 631                         return NULL;
 632                 }
 633                 return BUF_strdup(tmp);
 634         }
 635         if(!keepbio || !pwdbio) {
 636                 if(!strncmp(arg, "file:", 5)) {
 637                         pwdbio = BIO_new_file(arg + 5, "r");
 638                         if(!pwdbio) {
 639                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 640                                 return NULL;
 641                         }
 642                 } else if(!strncmp(arg, "fd:", 3)) {
 643                         BIO *btmp;
 644                         i = atoi(arg + 3);
 645                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 646                         if((i < 0) || !pwdbio) {
 647                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 648                                 return NULL;
 649                         }
 650                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 651                         btmp = BIO_new(BIO_f_buffer());
 652                         pwdbio = BIO_push(btmp, pwdbio);
 653                 } else if(!strcmp(arg, "stdin")) {
 654                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 655                         if(!pwdbio) {
 656                                 BIO_printf(err, "Can't open BIO for stdin\n");
 657                                 return NULL;
 658                         }
 659                 } else {
 660                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 661                         return NULL;
 662                 }
 663         }
 664         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 665         if(keepbio != 1) {
 666                 BIO_free_all(pwdbio);
 667                 pwdbio = NULL;
 668         }
 669         if(i <= 0) {
 670                 BIO_printf(err, "Error reading password from BIO\n");
 671                 return NULL;
 672         }
 673         tmp = strchr(tpass, '\n');
 674         if(tmp) *tmp = 0;
 675         return BUF_strdup(tpass);
 676 }
 677
 678 int add_oid_section(BIO *err, CONF *conf)
 679 {
 680         char *p;
 681         STACK_OF(CONF_VALUE) *sktmp;
 682         CONF_VALUE *cnf;
 683         int i;
 684         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
 685                 {
 686                 ERR_clear_error();
 687                 return 1;
 688                 }
 689         if(!(sktmp = NCONF_get_section(conf, p))) {
 690                 BIO_printf(err, "problem loading oid section %s\n", p);
 691                 return 0;
 692         }
 693         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 694                 cnf = sk_CONF_VALUE_value(sktmp, i);
 695                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 696                         BIO_printf(err, "problem creating object %s=%s\n",
 697                                                          cnf->name, cnf->value);
 698                         return 0;
 699                 }
 700         }
 701         return 1;
 702 }
 703
 704 static int load_pkcs12(BIO *err, BIO *in, const char *desc,
 705                 pem_password_cb *pem_cb,  void *cb_data,
 706                 EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
 707         {
 708         const char *pass;
 709         char tpass[PEM_BUFSIZE];
 710         int len, ret = 0;
 711         PKCS12 *p12;
 712         p12 = d2i_PKCS12_bio(in, NULL);
 713         if (p12 == NULL)
 714                 {
 715                 BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
 716                 goto die;
 717                 }
 718         /* See if an empty password will do */
 719         if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
 720                 pass = "";
 721         else
 722                 {
 723                 if (!pem_cb)
 724                         pem_cb = (pem_password_cb *)password_callback;
 725                 len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
 726                 if (len < 0)
 727                         {
 728                         BIO_printf(err, "Passpharse callback error for %s\n",
 729                                         desc);
 730                         goto die;
 731                         }
 732                 if (len < PEM_BUFSIZE)
 733                         tpass[len] = 0;
 734                 if (!PKCS12_verify_mac(p12, tpass, len))
 735                         {
 736                         BIO_printf(err,
 737         "Mac verify error (wrong password?) in PKCS12 file for %s\n", desc);
 738                         goto die;
 739                         }
 740                 pass = tpass;
 741                 }
 742         ret = PKCS12_parse(p12, pass, pkey, cert, ca);
 743         die:
 744         if (p12)
 745                 PKCS12_free(p12);
 746         return ret;
 747         }
 748
 749 X509 *load_cert(BIO *err, const char *file, int format,
 750         const char *pass, ENGINE *e, const char *cert_descrip)
 751         {
 752         ASN1_HEADER *ah=NULL;
 753         BUF_MEM *buf=NULL;
 754         X509 *x=NULL;
 755         BIO *cert;
 756
 757         if ((cert=BIO_new(BIO_s_file())) == NULL)
 758                 {
 759                 ERR_print_errors(err);
 760                 goto end;
 761                 }
 762
 763         if (file == NULL)
 764                 {
 765                 setvbuf(stdin, NULL, _IONBF, 0);
 766                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 767                 }
 768         else
 769                 {
 770                 if (BIO_read_filename(cert,file) <= 0)
 771                         {
 772                         BIO_printf(err, "Error opening %s %s\n",
 773                                 cert_descrip, file);
 774                         ERR_print_errors(err);
 775                         goto end;
 776                         }
 777                 }
 778
 779         if      (format == FORMAT_ASN1)
 780                 x=d2i_X509_bio(cert,NULL);
 781         else if (format == FORMAT_NETSCAPE)
 782                 {
 783                 const unsigned char *p,*op;
 784                 int size=0,i;
 785
 786                 /* We sort of have to do it this way because it is sort of nice
 787                  * to read the header first and check it, then
 788                  * try to read the certificate */
 789                 buf=BUF_MEM_new();
 790                 for (;;)
 791                         {
 792                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 793                                 goto end;
 794                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 795                         size+=i;
 796                         if (i == 0) break;
 797                         if (i < 0)
 798                                 {
 799                                 perror("reading certificate");
 800                                 goto end;
 801                                 }
 802                         }
 803                 p=(unsigned char *)buf->data;
 804                 op=p;
 805
 806                 /* First load the header */
 807                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 808                         goto end;
 809                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 810                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 811                         ah->header->length) != 0))
 812                         {
 813                         BIO_printf(err,"Error reading header on certificate\n");
 814                         goto end;
 815                         }
 816                 /* header is ok, so now read the object */
 817                 p=op;
 818                 ah->meth=X509_asn1_meth();
 819                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 820                         goto end;
 821                 x=(X509 *)ah->data;
 822                 ah->data=NULL;
 823                 }
 824         else if (format == FORMAT_PEM)
 825                 x=PEM_read_bio_X509_AUX(cert,NULL,
 826                         (pem_password_cb *)password_callback, NULL);
 827         else if (format == FORMAT_PKCS12)
 828                 {
 829                 if (!load_pkcs12(err, cert,cert_descrip, NULL, NULL,
 830                                         NULL, &x, NULL))
 831                         goto end;
 832                 }
 833         else    {
 834                 BIO_printf(err,"bad input format specified for %s\n",
 835                         cert_descrip);
 836                 goto end;
 837                 }
 838 end:
 839         if (x == NULL)
 840                 {
 841                 BIO_printf(err,"unable to load certificate\n");
 842                 ERR_print_errors(err);
 843                 }
 844         if (ah != NULL) ASN1_HEADER_free(ah);
 845         if (cert != NULL) BIO_free(cert);
 846         if (buf != NULL) BUF_MEM_free(buf);
 847         return(x);
 848         }
 849
 850 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
 851         const char *pass, ENGINE *e, const char *key_descrip)
 852         {
 853         BIO *key=NULL;
 854         EVP_PKEY *pkey=NULL;
 855         PW_CB_DATA cb_data;
 856
 857         cb_data.password = pass;
 858         cb_data.prompt_info = file;
 859
 860         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 861                 {
 862                 BIO_printf(err,"no keyfile specified\n");
 863                 goto end;
 864                 }
 865 #ifndef OPENSSL_NO_ENGINE
 866         if (format == FORMAT_ENGINE)
 867                 {
 868                 if (!e)
 869                         BIO_printf(bio_err,"no engine specified\n");
 870                 else
 871                         pkey = ENGINE_load_private_key(e, file,
 872                                 ui_method, &cb_data);
 873                 goto end;
 874                 }
 875 #endif
 876         key=BIO_new(BIO_s_file());
 877         if (key == NULL)
 878                 {
 879                 ERR_print_errors(err);
 880                 goto end;
 881                 }
 882         if (file == NULL && maybe_stdin)
 883                 {
 884                 setvbuf(stdin, NULL, _IONBF, 0);
 885                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 886                 }
 887         else
 888                 if (BIO_read_filename(key,file) <= 0)
 889                         {
 890                         BIO_printf(err, "Error opening %s %s\n",
 891                                 key_descrip, file);
 892                         ERR_print_errors(err);
 893                         goto end;
 894                         }
 895         if (format == FORMAT_ASN1)
 896                 {
 897                 pkey=d2i_PrivateKey_bio(key, NULL);
 898                 }
 899         else if (format == FORMAT_PEM)
 900                 {
 901                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 902                         (pem_password_cb *)password_callback, &cb_data);
 903                 }
 904 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 905         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 906                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 907 #endif
 908         else if (format == FORMAT_PKCS12)
 909                 {
 910                 if (!load_pkcs12(err, key, key_descrip,
 911                                 (pem_password_cb *)password_callback, &cb_data,
 912                                 &pkey, NULL, NULL))
 913                         goto end;
 914                 }
 915         else
 916                 {
 917                 BIO_printf(err,"bad input format specified for key file\n");
 918                 goto end;
 919                 }
 920  end:
 921         if (key != NULL) BIO_free(key);
 922         if (pkey == NULL)
 923                 BIO_printf(err,"unable to load %s\n", key_descrip);
 924         return(pkey);
 925         }
 926
 927 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
 928         const char *pass, ENGINE *e, const char *key_descrip)
 929         {
 930         BIO *key=NULL;
 931         EVP_PKEY *pkey=NULL;
 932         PW_CB_DATA cb_data;
 933
 934         cb_data.password = pass;
 935         cb_data.prompt_info = file;
 936
 937         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 938                 {
 939                 BIO_printf(err,"no keyfile specified\n");
 940                 goto end;
 941                 }
 942 #ifndef OPENSSL_NO_ENGINE
 943         if (format == FORMAT_ENGINE)
 944                 {
 945                 if (!e)
 946                         BIO_printf(bio_err,"no engine specified\n");
 947                 else
 948                         pkey = ENGINE_load_public_key(e, file,
 949                                 ui_method, &cb_data);
 950                 goto end;
 951                 }
 952 #endif
 953         key=BIO_new(BIO_s_file());
 954         if (key == NULL)
 955                 {
 956                 ERR_print_errors(err);
 957                 goto end;
 958                 }
 959         if (file == NULL && maybe_stdin)
 960                 {
 961                 setvbuf(stdin, NULL, _IONBF, 0);
 962                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 963                 }
 964         else
 965                 if (BIO_read_filename(key,file) <= 0)
 966                         {
 967                         BIO_printf(err, "Error opening %s %s\n",
 968                                 key_descrip, file);
 969                         ERR_print_errors(err);
 970                         goto end;
 971                 }
 972         if (format == FORMAT_ASN1)
 973                 {
 974                 pkey=d2i_PUBKEY_bio(key, NULL);
 975                 }
 976         else if (format == FORMAT_PEM)
 977                 {
 978                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 979                         (pem_password_cb *)password_callback, &cb_data);
 980                 }
 981 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 982         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 983                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 984 #endif
 985         else
 986                 {
 987                 BIO_printf(err,"bad input format specified for key file\n");
 988                 goto end;
 989                 }
 990  end:
 991         if (key != NULL) BIO_free(key);
 992         if (pkey == NULL)
 993                 BIO_printf(err,"unable to load %s\n", key_descrip);
 994         return(pkey);
 995         }
 996
 997 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 998 static EVP_PKEY *
 999 load_netscape_key(BIO *err, BIO *key, const char *file,
1000                 const char *key_descrip, int format)
1001         {
1002         EVP_PKEY *pkey;
1003         BUF_MEM *buf;
1004         RSA     *rsa;
1005         const unsigned char *p;
1006         int size, i;
1007
1008         buf=BUF_MEM_new();
1009         pkey = EVP_PKEY_new();
1010         size = 0;
1011         if (buf == NULL || pkey == NULL)
1012                 goto error;
1013         for (;;)
1014                 {
1015                 if (!BUF_MEM_grow_clean(buf,size+1024*10))
1016                         goto error;
1017                 i = BIO_read(key, &(buf->data[size]), 1024*10);
1018                 size += i;
1019                 if (i == 0)
1020                         break;
1021                 if (i < 0)
1022                         {
1023                                 BIO_printf(err, "Error reading %s %s",
1024                                         key_descrip, file);
1025                                 goto error;
1026                         }
1027                 }
1028         p=(unsigned char *)buf->data;
1029         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
1030                 (format == FORMAT_IISSGC ? 1 : 0));
1031         if (rsa == NULL)
1032                 goto error;
1033         BUF_MEM_free(buf);
1034         EVP_PKEY_set1_RSA(pkey, rsa);
1035         return pkey;
1036 error:
1037         BUF_MEM_free(buf);
1038         EVP_PKEY_free(pkey);
1039         return NULL;
1040         }
1041 #endif /* ndef OPENSSL_NO_RC4 */
1042
1043 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1044         const char *pass, ENGINE *e, const char *cert_descrip)
1045         {
1046         BIO *certs;
1047         int i;
1048         STACK_OF(X509) *othercerts = NULL;
1049         STACK_OF(X509_INFO) *allcerts = NULL;
1050         X509_INFO *xi;
1051         PW_CB_DATA cb_data;
1052
1053         cb_data.password = pass;
1054         cb_data.prompt_info = file;
1055
1056         if((certs = BIO_new(BIO_s_file())) == NULL)
1057                 {
1058                 ERR_print_errors(err);
1059                 goto end;
1060                 }
1061
1062         if (file == NULL)
1063                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
1064         else
1065                 {
1066                 if (BIO_read_filename(certs,file) <= 0)
1067                         {
1068                         BIO_printf(err, "Error opening %s %s\n",
1069                                 cert_descrip, file);
1070                         ERR_print_errors(err);
1071                         goto end;
1072                         }
1073                 }
1074
1075         if      (format == FORMAT_PEM)
1076                 {
1077                 othercerts = sk_X509_new_null();
1078                 if(!othercerts)
1079                         {
1080                         sk_X509_free(othercerts);
1081                         othercerts = NULL;
1082                         goto end;
1083                         }
1084                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1085                                 (pem_password_cb *)password_callback, &cb_data);
1086                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1087                         {
1088                         xi = sk_X509_INFO_value (allcerts, i);
1089                         if (xi->x509)
1090                                 {
1091                                 sk_X509_push(othercerts, xi->x509);
1092                                 xi->x509 = NULL;
1093                                 }
1094                         }
1095                 goto end;
1096                 }
1097         else    {
1098                 BIO_printf(err,"bad input format specified for %s\n",
1099                         cert_descrip);
1100                 goto end;
1101                 }
1102 end:
1103         if (othercerts == NULL)
1104                 {
1105                 BIO_printf(err,"unable to load certificates\n");
1106                 ERR_print_errors(err);
1107                 }
1108         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1109         if (certs != NULL) BIO_free(certs);
1110         return(othercerts);
1111         }
1112
1113
1114 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1115 /* Return error for unknown extensions */
1116 #define X509V3_EXT_DEFAULT              0
1117 /* Print error for unknown extensions */
1118 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1119 /* ASN1 parse unknown extensions */
1120 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1121 /* BIO_dump unknown extensions */
1122 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1123
1124 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1125                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1126
1127 int set_cert_ex(unsigned long *flags, const char *arg)
1128 {
1129         static const NAME_EX_TBL cert_tbl[] = {
1130                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1131                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1132                 { "no_header", X509_FLAG_NO_HEADER, 0},
1133                 { "no_version", X509_FLAG_NO_VERSION, 0},
1134                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1135                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1136                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1137                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1138                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1139                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1140                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1141                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1142                 { "no_aux", X509_FLAG_NO_AUX, 0},
1143                 { "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1144                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1145                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1146                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1147                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1148                 { NULL, 0, 0}
1149         };
1150         return set_multi_opts(flags, arg, cert_tbl);
1151 }
1152
1153 int set_name_ex(unsigned long *flags, const char *arg)
1154 {
1155         static const NAME_EX_TBL ex_tbl[] = {
1156                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1157                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1158                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1159                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1160                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1161                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1162                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1163                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1164                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1165                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1166                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1167                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1168                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1169                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1170                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1171                 { "dn_rev", XN_FLAG_DN_REV, 0},
1172                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1173                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1174                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1175                 { "align", XN_FLAG_FN_ALIGN, 0},
1176                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1177                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1178                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1179                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1180                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1181                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1182                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1183                 { NULL, 0, 0}
1184         };
1185         return set_multi_opts(flags, arg, ex_tbl);
1186 }
1187
1188 int set_ext_copy(int *copy_type, const char *arg)
1189 {
1190         if (!strcasecmp(arg, "none"))
1191                 *copy_type = EXT_COPY_NONE;
1192         else if (!strcasecmp(arg, "copy"))
1193                 *copy_type = EXT_COPY_ADD;
1194         else if (!strcasecmp(arg, "copyall"))
1195                 *copy_type = EXT_COPY_ALL;
1196         else
1197                 return 0;
1198         return 1;
1199 }
1200
1201 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1202 {
1203         STACK_OF(X509_EXTENSION) *exts = NULL;
1204         X509_EXTENSION *ext, *tmpext;
1205         ASN1_OBJECT *obj;
1206         int i, idx, ret = 0;
1207         if (!x || !req || (copy_type == EXT_COPY_NONE))
1208                 return 1;
1209         exts = X509_REQ_get_extensions(req);
1210
1211         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1212                 ext = sk_X509_EXTENSION_value(exts, i);
1213                 obj = X509_EXTENSION_get_object(ext);
1214                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1215                 /* Does extension exist? */
1216                 if (idx != -1) {
1217                         /* If normal copy don't override existing extension */
1218                         if (copy_type == EXT_COPY_ADD)
1219                                 continue;
1220                         /* Delete all extensions of same type */
1221                         do {
1222                                 tmpext = X509_get_ext(x, idx);
1223                                 X509_delete_ext(x, idx);
1224                                 X509_EXTENSION_free(tmpext);
1225                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1226                         } while (idx != -1);
1227                 }
1228                 if (!X509_add_ext(x, ext, -1))
1229                         goto end;
1230         }
1231
1232         ret = 1;
1233
1234         end:
1235
1236         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1237
1238         return ret;
1239 }
1240
1241
1242
1243
1244 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1245 {
1246         STACK_OF(CONF_VALUE) *vals;
1247         CONF_VALUE *val;
1248         int i, ret = 1;
1249         if(!arg) return 0;
1250         vals = X509V3_parse_list(arg);
1251         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1252                 val = sk_CONF_VALUE_value(vals, i);
1253                 if (!set_table_opts(flags, val->name, in_tbl))
1254                         ret = 0;
1255         }
1256         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1257         return ret;
1258 }
1259
1260 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1261 {
1262         char c;
1263         const NAME_EX_TBL *ptbl;
1264         c = arg[0];
1265
1266         if(c == '-') {
1267                 c = 0;
1268                 arg++;
1269         } else if (c == '+') {
1270                 c = 1;
1271                 arg++;
1272         } else c = 1;
1273
1274         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1275                 if(!strcasecmp(arg, ptbl->name)) {
1276                         *flags &= ~ptbl->mask;
1277                         if(c) *flags |= ptbl->flag;
1278                         else *flags &= ~ptbl->flag;
1279                         return 1;
1280                 }
1281         }
1282         return 0;
1283 }
1284
1285 void print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)
1286 {
1287         char *buf;
1288         char mline = 0;
1289         int indent = 0;
1290
1291         if(title) BIO_puts(out, title);
1292         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1293                 mline = 1;
1294                 indent = 4;
1295         }
1296         if(lflags == XN_FLAG_COMPAT) {
1297                 buf = X509_NAME_oneline(nm, 0, 0);
1298                 BIO_puts(out, buf);
1299                 BIO_puts(out, "\n");
1300                 OPENSSL_free(buf);
1301         } else {
1302                 if(mline) BIO_puts(out, "\n");
1303                 X509_NAME_print_ex(out, nm, indent, lflags);
1304                 BIO_puts(out, "\n");
1305         }
1306 }
1307
1308 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1309 {
1310         X509_STORE *store;
1311         X509_LOOKUP *lookup;
1312         if(!(store = X509_STORE_new())) goto end;
1313         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1314         if (lookup == NULL) goto end;
1315         if (CAfile) {
1316                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1317                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1318                         goto end;
1319                 }
1320         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1321
1322         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1323         if (lookup == NULL) goto end;
1324         if (CApath) {
1325                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1326                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1327                         goto end;
1328                 }
1329         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1330
1331         ERR_clear_error();
1332         return store;
1333         end:
1334         X509_STORE_free(store);
1335         return NULL;
1336 }
1337
1338 #ifndef OPENSSL_NO_ENGINE
1339 /* Try to load an engine in a shareable library */
1340 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1341         {
1342         ENGINE *e = ENGINE_by_id("dynamic");
1343         if (e)
1344                 {
1345                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1346                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1347                         {
1348                         ENGINE_free(e);
1349                         e = NULL;
1350                         }
1351                 }
1352         return e;
1353         }
1354
1355 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1356         {
1357         ENGINE *e = NULL;
1358
1359         if (engine)
1360                 {
1361                 if(strcmp(engine, "auto") == 0)
1362                         {
1363                         BIO_printf(err,"enabling auto ENGINE support\n");
1364                         ENGINE_register_all_complete();
1365                         return NULL;
1366                         }
1367                 if((e = ENGINE_by_id(engine)) == NULL
1368                         && (e = try_load_engine(err, engine, debug)) == NULL)
1369                         {
1370                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1371                         ERR_print_errors(err);
1372                         return NULL;
1373                         }
1374                 if (debug)
1375                         {
1376                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1377                                 0, err, 0);
1378                         }
1379                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1380                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1381                         {
1382                         BIO_printf(err,"can't use that engine\n");
1383                         ERR_print_errors(err);
1384                         ENGINE_free(e);
1385                         return NULL;
1386                         }
1387
1388                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1389
1390                 /* Free our "structural" reference. */
1391                 ENGINE_free(e);
1392                 }
1393         return e;
1394         }
1395 #endif
1396
1397 int load_config(BIO *err, CONF *cnf)
1398         {
1399         if (!cnf)
1400                 cnf = config;
1401         if (!cnf)
1402                 return 1;
1403
1404         OPENSSL_load_builtin_modules();
1405
1406         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1407                 {
1408                 BIO_printf(err, "Error configuring OpenSSL\n");
1409                 ERR_print_errors(err);
1410                 return 0;
1411                 }
1412         return 1;
1413         }
1414
1415 char *make_config_name()
1416         {
1417         const char *t=X509_get_default_cert_area();
1418         size_t len;
1419         char *p;
1420
1421         len=strlen(t)+strlen(OPENSSL_CONF)+2;
1422         p=OPENSSL_malloc(len);
1423         BUF_strlcpy(p,t,len);
1424 #ifndef OPENSSL_SYS_VMS
1425         BUF_strlcat(p,"/",len);
1426 #endif
1427         BUF_strlcat(p,OPENSSL_CONF,len);
1428
1429         return p;
1430         }
1431
1432 static unsigned long index_serial_hash(const char **a)
1433         {
1434         const char *n;
1435
1436         n=a[DB_serial];
1437         while (*n == '0') n++;
1438         return(lh_strhash(n));
1439         }
1440
1441 static int index_serial_cmp(const char **a, const char **b)
1442         {
1443         const char *aa,*bb;
1444
1445         for (aa=a[DB_serial]; *aa == '0'; aa++);
1446         for (bb=b[DB_serial]; *bb == '0'; bb++);
1447         return(strcmp(aa,bb));
1448         }
1449
1450 static int index_name_qual(char **a)
1451         { return(a[0][0] == 'V'); }
1452
1453 static unsigned long index_name_hash(const char **a)
1454         { return(lh_strhash(a[DB_name])); }
1455
1456 int index_name_cmp(const char **a, const char **b)
1457         { return(strcmp(a[DB_name],
1458              b[DB_name])); }
1459
1460 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash,const char **)
1461 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp,const char **)
1462 static IMPLEMENT_LHASH_HASH_FN(index_name_hash,const char **)
1463 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp,const char **)
1464
1465 #undef BSIZE
1466 #define BSIZE 256
1467
1468 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1469         {
1470         BIO *in=NULL;
1471         BIGNUM *ret=NULL;
1472         MS_STATIC char buf[1024];
1473         ASN1_INTEGER *ai=NULL;
1474
1475         ai=ASN1_INTEGER_new();
1476         if (ai == NULL) goto err;
1477
1478         if ((in=BIO_new(BIO_s_file())) == NULL)
1479                 {
1480                 ERR_print_errors(bio_err);
1481                 goto err;
1482                 }
1483
1484         if (BIO_read_filename(in,serialfile) <= 0)
1485                 {
1486                 if (!create)
1487                         {
1488                         perror(serialfile);
1489                         goto err;
1490                         }
1491                 else
1492                         {
1493                         ret=BN_new();
1494                         if (ret == NULL || !rand_serial(ret, ai))
1495                                 BIO_printf(bio_err, "Out of memory\n");
1496                         }
1497                 }
1498         else
1499                 {
1500                 if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
1501                         {
1502                         BIO_printf(bio_err,"unable to load number from %s\n",
1503                                 serialfile);
1504                         goto err;
1505                         }
1506                 ret=ASN1_INTEGER_to_BN(ai,NULL);
1507                 if (ret == NULL)
1508                         {
1509                         BIO_printf(bio_err,"error converting number from bin to BIGNUM\n");
1510                         goto err;
1511                         }
1512                 }
1513
1514         if (ret && retai)
1515                 {
1516                 *retai = ai;
1517                 ai = NULL;
1518                 }
1519  err:
1520         if (in != NULL) BIO_free(in);
1521         if (ai != NULL) ASN1_INTEGER_free(ai);
1522         return(ret);
1523         }
1524
1525 int save_serial(char *serialfile, char *suffix, BIGNUM *serial, ASN1_INTEGER **retai)
1526         {
1527         char buf[1][BSIZE];
1528         BIO *out = NULL;
1529         int ret=0;
1530         ASN1_INTEGER *ai=NULL;
1531         int j;
1532
1533         if (suffix == NULL)
1534                 j = strlen(serialfile);
1535         else
1536                 j = strlen(serialfile) + strlen(suffix) + 1;
1537         if (j >= BSIZE)
1538                 {
1539                 BIO_printf(bio_err,"file name too long\n");
1540                 goto err;
1541                 }
1542
1543         if (suffix == NULL)
1544                 BUF_strlcpy(buf[0], serialfile, BSIZE);
1545         else
1546                 {
1547 #ifndef OPENSSL_SYS_VMS
1548                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1549 #else
1550                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1551 #endif
1552                 }
1553 #ifdef RL_DEBUG
1554         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1555 #endif
1556         out=BIO_new(BIO_s_file());
1557         if (out == NULL)
1558                 {
1559                 ERR_print_errors(bio_err);
1560                 goto err;
1561                 }
1562         if (BIO_write_filename(out,buf[0]) <= 0)
1563                 {
1564                 perror(serialfile);
1565                 goto err;
1566                 }
1567
1568         if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)
1569                 {
1570                 BIO_printf(bio_err,"error converting serial to ASN.1 format\n");
1571                 goto err;
1572                 }
1573         i2a_ASN1_INTEGER(out,ai);
1574         BIO_puts(out,"\n");
1575         ret=1;
1576         if (retai)
1577                 {
1578                 *retai = ai;
1579                 ai = NULL;
1580                 }
1581 err:
1582         if (out != NULL) BIO_free_all(out);
1583         if (ai != NULL) ASN1_INTEGER_free(ai);
1584         return(ret);
1585         }
1586
1587 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1588         {
1589         char buf[5][BSIZE];
1590         int i,j;
1591         struct stat sb;
1592
1593         i = strlen(serialfile) + strlen(old_suffix);
1594         j = strlen(serialfile) + strlen(new_suffix);
1595         if (i > j) j = i;
1596         if (j + 1 >= BSIZE)
1597                 {
1598                 BIO_printf(bio_err,"file name too long\n");
1599                 goto err;
1600                 }
1601
1602 #ifndef OPENSSL_SYS_VMS
1603         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1604                 serialfile, new_suffix);
1605 #else
1606         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1607                 serialfile, new_suffix);
1608 #endif
1609 #ifndef OPENSSL_SYS_VMS
1610         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1611                 serialfile, old_suffix);
1612 #else
1613         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1614                 serialfile, old_suffix);
1615 #endif
1616         if (stat(serialfile,&sb) < 0)
1617                 {
1618                 if (errno != ENOENT
1619 #ifdef ENOTDIR
1620                         && errno != ENOTDIR
1621 #endif
1622                    )
1623                         goto err;
1624                 }
1625         else
1626                 {
1627 #ifdef RL_DEBUG
1628                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1629                         serialfile, buf[1]);
1630 #endif
1631                 if (rename(serialfile,buf[1]) < 0)
1632                         {
1633                         BIO_printf(bio_err,
1634                                 "unable to rename %s to %s\n",
1635                                 serialfile, buf[1]);
1636                         perror("reason");
1637                         goto err;
1638                         }
1639                 }
1640 #ifdef RL_DEBUG
1641         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1642                 buf[0],serialfile);
1643 #endif
1644         if (rename(buf[0],serialfile) < 0)
1645                 {
1646                 BIO_printf(bio_err,
1647                         "unable to rename %s to %s\n",
1648                         buf[0],serialfile);
1649                 perror("reason");
1650                 rename(buf[1],serialfile);
1651                 goto err;
1652                 }
1653         return 1;
1654  err:
1655         return 0;
1656         }
1657
1658 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1659         {
1660         BIGNUM *btmp;
1661         int ret = 0;
1662         if (b)
1663                 btmp = b;
1664         else
1665                 btmp = BN_new();
1666
1667         if (!btmp)
1668                 return 0;
1669
1670         if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1671                 goto error;
1672         if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1673                 goto error;
1674
1675         ret = 1;
1676
1677         error:
1678
1679         if (!b)
1680                 BN_free(btmp);
1681
1682         return ret;
1683         }
1684
1685 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1686         {
1687         CA_DB *retdb = NULL;
1688         TXT_DB *tmpdb = NULL;
1689         BIO *in = BIO_new(BIO_s_file());
1690         CONF *dbattr_conf = NULL;
1691         char buf[1][BSIZE];
1692         long errorline= -1;
1693
1694         if (in == NULL)
1695                 {
1696                 ERR_print_errors(bio_err);
1697                 goto err;
1698                 }
1699         if (BIO_read_filename(in,dbfile) <= 0)
1700                 {
1701                 perror(dbfile);
1702                 BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
1703                 goto err;
1704                 }
1705         if ((tmpdb = TXT_DB_read(in,DB_NUMBER)) == NULL)
1706                 {
1707                 if (tmpdb != NULL) TXT_DB_free(tmpdb);
1708                 goto err;
1709                 }
1710
1711 #ifndef OPENSSL_SYS_VMS
1712         BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1713 #else
1714         BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1715 #endif
1716         dbattr_conf = NCONF_new(NULL);
1717         if (NCONF_load(dbattr_conf,buf[0],&errorline) <= 0)
1718                 {
1719                 if (errorline > 0)
1720                         {
1721                         BIO_printf(bio_err,
1722                                 "error on line %ld of db attribute file '%s'\n"
1723                                 ,errorline,buf[0]);
1724                         goto err;
1725                         }
1726                 else
1727                         {
1728                         NCONF_free(dbattr_conf);
1729                         dbattr_conf = NULL;
1730                         }
1731                 }
1732
1733         if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL)
1734                 {
1735                 fprintf(stderr, "Out of memory\n");
1736                 goto err;
1737                 }
1738
1739         retdb->db = tmpdb;
1740         tmpdb = NULL;
1741         if (db_attr)
1742                 retdb->attributes = *db_attr;
1743         else
1744                 {
1745                 retdb->attributes.unique_subject = 1;
1746                 }
1747
1748         if (dbattr_conf)
1749                 {
1750                 char *p = NCONF_get_string(dbattr_conf,NULL,"unique_subject");
1751                 if (p)
1752                         {
1753 #ifdef RL_DEBUG
1754                         BIO_printf(bio_err, "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1755 #endif
1756                         retdb->attributes.unique_subject = parse_yesno(p,1);
1757                         }
1758                 }
1759
1760  err:
1761         if (dbattr_conf) NCONF_free(dbattr_conf);
1762         if (tmpdb) TXT_DB_free(tmpdb);
1763         if (in) BIO_free_all(in);
1764         return retdb;
1765         }
1766
1767 int index_index(CA_DB *db)
1768         {
1769         if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1770                                 LHASH_HASH_FN(index_serial_hash),
1771                                 LHASH_COMP_FN(index_serial_cmp)))
1772                 {
1773                 BIO_printf(bio_err,
1774                   "error creating serial number index:(%ld,%ld,%ld)\n",
1775                                         db->db->error,db->db->arg1,db->db->arg2);
1776                         return 0;
1777                 }
1778
1779         if (db->attributes.unique_subject
1780                 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1781                         LHASH_HASH_FN(index_name_hash),
1782                         LHASH_COMP_FN(index_name_cmp)))
1783                 {
1784                 BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",
1785                         db->db->error,db->db->arg1,db->db->arg2);
1786                 return 0;
1787                 }
1788         return 1;
1789         }
1790
1791 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1792         {
1793         char buf[3][BSIZE];
1794         BIO *out = BIO_new(BIO_s_file());
1795         int j;
1796
1797         if (out == NULL)
1798                 {
1799                 ERR_print_errors(bio_err);
1800                 goto err;
1801                 }
1802
1803         j = strlen(dbfile) + strlen(suffix);
1804         if (j + 6 >= BSIZE)
1805                 {
1806                 BIO_printf(bio_err,"file name too long\n");
1807                 goto err;
1808                 }
1809
1810 #ifndef OPENSSL_SYS_VMS
1811         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1812 #else
1813         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1814 #endif
1815 #ifndef OPENSSL_SYS_VMS
1816         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1817 #else
1818         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1819 #endif
1820 #ifndef OPENSSL_SYS_VMS
1821         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1822 #else
1823         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1824 #endif
1825 #ifdef RL_DEBUG
1826         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1827 #endif
1828         if (BIO_write_filename(out,buf[0]) <= 0)
1829                 {
1830                 perror(dbfile);
1831                 BIO_printf(bio_err,"unable to open '%s'\n", dbfile);
1832                 goto err;
1833                 }
1834         j=TXT_DB_write(out,db->db);
1835         if (j <= 0) goto err;
1836
1837         BIO_free(out);
1838
1839         out = BIO_new(BIO_s_file());
1840 #ifdef RL_DEBUG
1841         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1842 #endif
1843         if (BIO_write_filename(out,buf[1]) <= 0)
1844                 {
1845                 perror(buf[2]);
1846                 BIO_printf(bio_err,"unable to open '%s'\n", buf[2]);
1847                 goto err;
1848                 }
1849         BIO_printf(out,"unique_subject = %s\n",
1850                 db->attributes.unique_subject ? "yes" : "no");
1851         BIO_free(out);
1852
1853         return 1;
1854  err:
1855         return 0;
1856         }
1857
1858 int rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)
1859         {
1860         char buf[5][BSIZE];
1861         int i,j;
1862         struct stat sb;
1863
1864         i = strlen(dbfile) + strlen(old_suffix);
1865         j = strlen(dbfile) + strlen(new_suffix);
1866         if (i > j) j = i;
1867         if (j + 6 >= BSIZE)
1868                 {
1869                 BIO_printf(bio_err,"file name too long\n");
1870                 goto err;
1871                 }
1872
1873 #ifndef OPENSSL_SYS_VMS
1874         j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1875 #else
1876         j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1877 #endif
1878 #ifndef OPENSSL_SYS_VMS
1879         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s",
1880                 dbfile, new_suffix);
1881 #else
1882         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s",
1883                 dbfile, new_suffix);
1884 #endif
1885 #ifndef OPENSSL_SYS_VMS
1886         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1887                 dbfile, new_suffix);
1888 #else
1889         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1890                 dbfile, new_suffix);
1891 #endif
1892 #ifndef OPENSSL_SYS_VMS
1893         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1894                 dbfile, old_suffix);
1895 #else
1896         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1897                 dbfile, old_suffix);
1898 #endif
1899 #ifndef OPENSSL_SYS_VMS
1900         j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s",
1901                 dbfile, old_suffix);
1902 #else
1903         j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s",
1904                 dbfile, old_suffix);
1905 #endif
1906         if (stat(dbfile,&sb) < 0)
1907                 {
1908                 if (errno != ENOENT
1909 #ifdef ENOTDIR
1910                         && errno != ENOTDIR
1911 #endif
1912                    )
1913                         goto err;
1914                 }
1915         else
1916                 {
1917 #ifdef RL_DEBUG
1918                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1919                         dbfile, buf[1]);
1920 #endif
1921                 if (rename(dbfile,buf[1]) < 0)
1922                         {
1923                         BIO_printf(bio_err,
1924                                 "unable to rename %s to %s\n",
1925                                 dbfile, buf[1]);
1926                         perror("reason");
1927                         goto err;
1928                         }
1929                 }
1930 #ifdef RL_DEBUG
1931         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1932                 buf[0],dbfile);
1933 #endif
1934         if (rename(buf[0],dbfile) < 0)
1935                 {
1936                 BIO_printf(bio_err,
1937                         "unable to rename %s to %s\n",
1938                         buf[0],dbfile);
1939                 perror("reason");
1940                 rename(buf[1],dbfile);
1941                 goto err;
1942                 }
1943         if (stat(buf[4],&sb) < 0)
1944                 {
1945                 if (errno != ENOENT
1946 #ifdef ENOTDIR
1947                         && errno != ENOTDIR
1948 #endif
1949                    )
1950                         goto err;
1951                 }
1952         else
1953                 {
1954 #ifdef RL_DEBUG
1955                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1956                         buf[4],buf[3]);
1957 #endif
1958                 if (rename(buf[4],buf[3]) < 0)
1959                         {
1960                         BIO_printf(bio_err,
1961                                 "unable to rename %s to %s\n",
1962                                 buf[4], buf[3]);
1963                         perror("reason");
1964                         rename(dbfile,buf[0]);
1965                         rename(buf[1],dbfile);
1966                         goto err;
1967                         }
1968                 }
1969 #ifdef RL_DEBUG
1970         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1971                 buf[2],buf[4]);
1972 #endif
1973         if (rename(buf[2],buf[4]) < 0)
1974                 {
1975                 BIO_printf(bio_err,
1976                         "unable to rename %s to %s\n",
1977                         buf[2],buf[4]);
1978                 perror("reason");
1979                 rename(buf[3],buf[4]);
1980                 rename(dbfile,buf[0]);
1981                 rename(buf[1],dbfile);
1982                 goto err;
1983                 }
1984         return 1;
1985  err:
1986         return 0;
1987         }
1988
1989 void free_index(CA_DB *db)
1990         {
1991         if (db)
1992                 {
1993                 if (db->db) TXT_DB_free(db->db);
1994                 OPENSSL_free(db);
1995                 }
1996         }
1997
1998 int parse_yesno(const char *str, int def)
1999         {
2000         int ret = def;
2001         if (str)
2002                 {
2003                 switch (*str)
2004                         {
2005                 case 'f': /* false */
2006                 case 'F': /* FALSE */
2007                 case 'n': /* no */
2008                 case 'N': /* NO */
2009                 case '0': /* 0 */
2010                         ret = 0;
2011                         break;
2012                 case 't': /* true */
2013                 case 'T': /* TRUE */
2014                 case 'y': /* yes */
2015                 case 'Y': /* YES */
2016                 case '1': /* 1 */
2017                         ret = 1;
2018                         break;
2019                 default:
2020                         ret = def;
2021                         break;
2022                         }
2023                 }
2024         return ret;
2025         }
2026
2027 /*
2028  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2029  * where characters may be escaped by \
2030  */
2031 X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2032         {
2033         size_t buflen = strlen(subject)+1; /* to copy the types and values into. due to escaping, the copy can only become shorter */
2034         char *buf = OPENSSL_malloc(buflen);
2035         size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2036         char **ne_types = OPENSSL_malloc(max_ne * sizeof (char *));
2037         char **ne_values = OPENSSL_malloc(max_ne * sizeof (char *));
2038         int *mval = OPENSSL_malloc (max_ne * sizeof (int));
2039
2040         char *sp = subject, *bp = buf;
2041         int i, ne_num = 0;
2042
2043         X509_NAME *n = NULL;
2044         int nid;
2045
2046         if (!buf || !ne_types || !ne_values)
2047                 {
2048                 BIO_printf(bio_err, "malloc error\n");
2049                 goto error;
2050                 }
2051
2052         if (*subject != '/')
2053                 {
2054                 BIO_printf(bio_err, "Subject does not start with '/'.\n");
2055                 goto error;
2056                 }
2057         sp++; /* skip leading / */
2058
2059         /* no multivalued RDN by default */
2060         mval[ne_num] = 0;
2061
2062         while (*sp)
2063                 {
2064                 /* collect type */
2065                 ne_types[ne_num] = bp;
2066                 while (*sp)
2067                         {
2068                         if (*sp == '\\') /* is there anything to escape in the type...? */
2069                                 {
2070                                 if (*++sp)
2071                                         *bp++ = *sp++;
2072                                 else
2073                                         {
2074                                         BIO_printf(bio_err, "escape character at end of string\n");
2075                                         goto error;
2076                                         }
2077                                 }
2078                         else if (*sp == '=')
2079                                 {
2080                                 sp++;
2081                                 *bp++ = '\0';
2082                                 break;
2083                                 }
2084                         else
2085                                 *bp++ = *sp++;
2086                         }
2087                 if (!*sp)
2088                         {
2089                         BIO_printf(bio_err, "end of string encountered while processing type of subject name element #%d\n", ne_num);
2090                         goto error;
2091                         }
2092                 ne_values[ne_num] = bp;
2093                 while (*sp)
2094                         {
2095                         if (*sp == '\\')
2096                                 {
2097                                 if (*++sp)
2098                                         *bp++ = *sp++;
2099                                 else
2100                                         {
2101                                         BIO_printf(bio_err, "escape character at end of string\n");
2102                                         goto error;
2103                                         }
2104                                 }
2105                         else if (*sp == '/')
2106                                 {
2107                                 sp++;
2108                                 /* no multivalued RDN by default */
2109                                 mval[ne_num+1] = 0;
2110                                 break;
2111                                 }
2112                         else if (*sp == '+' && multirdn)
2113                                 {
2114                                 /* a not escaped + signals a mutlivalued RDN */
2115                                 sp++;
2116                                 mval[ne_num+1] = -1;
2117                                 break;
2118                                 }
2119                         else
2120                                 *bp++ = *sp++;
2121                         }
2122                 *bp++ = '\0';
2123                 ne_num++;
2124                 }
2125
2126         if (!(n = X509_NAME_new()))
2127                 goto error;
2128
2129         for (i = 0; i < ne_num; i++)
2130                 {
2131                 if ((nid=OBJ_txt2nid(ne_types[i])) == NID_undef)
2132                         {
2133                         BIO_printf(bio_err, "Subject Attribute %s has no known NID, skipped\n", ne_types[i]);
2134                         continue;
2135                         }
2136
2137                 if (!*ne_values[i])
2138                         {
2139                         BIO_printf(bio_err, "No value provided for Subject Attribute %s, skipped\n", ne_types[i]);
2140                         continue;
2141                         }
2142
2143                 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char*)ne_values[i], -1,-1,mval[i]))
2144                         goto error;
2145                 }
2146
2147         OPENSSL_free(ne_values);
2148         OPENSSL_free(ne_types);
2149         OPENSSL_free(buf);
2150         return n;
2151
2152 error:
2153         X509_NAME_free(n);
2154         if (ne_values)
2155                 OPENSSL_free(ne_values);
2156         if (ne_types)
2157                 OPENSSL_free(ne_types);
2158         if (buf)
2159                 OPENSSL_free(buf);
2160         return NULL;
2161 }
2162
2163 /* This code MUST COME AFTER anything that uses rename() */
2164 #ifdef OPENSSL_SYS_WIN32
2165 int WIN32_rename(const char *from, const char *to)
2166         {
2167 #ifndef OPENSSL_SYS_WINCE
2168         /* Windows rename gives an error if 'to' exists, so delete it
2169          * first and ignore file not found errror
2170          */
2171         if((remove(to) != 0) && (errno != ENOENT))
2172                 return -1;
2173 #undef rename
2174         return rename(from, to);
2175 #else
2176         /* convert strings to UNICODE */
2177         {
2178         BOOL result = FALSE;
2179         WCHAR* wfrom;
2180         WCHAR* wto;
2181         int i;
2182         wfrom = malloc((strlen(from)+1)*2);
2183         wto = malloc((strlen(to)+1)*2);
2184         if (wfrom != NULL && wto != NULL)
2185                 {
2186                 for (i=0; i<(int)strlen(from)+1; i++)
2187                         wfrom[i] = (short)from[i];
2188                 for (i=0; i<(int)strlen(to)+1; i++)
2189                         wto[i] = (short)to[i];
2190                 result = MoveFile(wfrom, wto);
2191                 }
2192         if (wfrom != NULL)
2193                 free(wfrom);
2194         if (wto != NULL)
2195                 free(wto);
2196         return result;
2197         }
2198 #endif
2199         }
2200 #endif
2201
2202 int args_verify(char ***pargs, int *pargc,
2203                         int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2204         {
2205         ASN1_OBJECT *otmp = NULL;
2206         unsigned long flags = 0;
2207         int i;
2208         int purpose = 0;
2209         char **oldargs = *pargs;
2210         char *arg = **pargs, *argn = (*pargs)[1];
2211         if (!strcmp(arg, "-policy"))
2212                 {
2213                 if (!argn)
2214                         *badarg = 1;
2215                 else
2216                         {
2217                         otmp = OBJ_txt2obj(argn, 0);
2218                         if (!otmp)
2219                                 {
2220                                 BIO_printf(err, "Invalid Policy \"%s\"\n",
2221                                                                         argn);
2222                                 *badarg = 1;
2223                                 }
2224                         }
2225                 (*pargs)++;
2226                 }
2227         else if (strcmp(arg,"-purpose") == 0)
2228                 {
2229                 X509_PURPOSE *xptmp;
2230                 if (!argn)
2231                         *badarg = 1;
2232                 else
2233                         {
2234                         i = X509_PURPOSE_get_by_sname(argn);
2235                         if(i < 0)
2236                                 {
2237                                 BIO_printf(err, "unrecognized purpose\n");
2238                                 *badarg = 1;
2239                                 }
2240                         else
2241                                 {
2242                                 xptmp = X509_PURPOSE_get0(i);
2243                                 purpose = X509_PURPOSE_get_id(xptmp);
2244                                 }
2245                         }
2246                 (*pargs)++;
2247                 }
2248         else if (!strcmp(arg, "-ignore_critical"))
2249                 flags |= X509_V_FLAG_IGNORE_CRITICAL;
2250         else if (!strcmp(arg, "-issuer_checks"))
2251                 flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2252         else if (!strcmp(arg, "-crl_check"))
2253                 flags |=  X509_V_FLAG_CRL_CHECK;
2254         else if (!strcmp(arg, "-crl_check_all"))
2255                 flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
2256         else if (!strcmp(arg, "-policy_check"))
2257                 flags |= X509_V_FLAG_POLICY_CHECK;
2258         else if (!strcmp(arg, "-explicit_policy"))
2259                 flags |= X509_V_FLAG_EXPLICIT_POLICY;
2260         else if (!strcmp(arg, "-x509_strict"))
2261                 flags |= X509_V_FLAG_X509_STRICT;
2262         else if (!strcmp(arg, "-policy_print"))
2263                 flags |= X509_V_FLAG_NOTIFY_POLICY;
2264         else
2265                 return 0;
2266
2267         if (*badarg)
2268                 {
2269                 if (*pm)
2270                         X509_VERIFY_PARAM_free(*pm);
2271                 *pm = NULL;
2272                 goto end;
2273                 }
2274
2275         if (!*pm && !(*pm = X509_VERIFY_PARAM_new()))
2276                 {
2277                 *badarg = 1;
2278                 goto end;
2279                 }
2280
2281         if (otmp)
2282                 X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2283         if (flags)
2284                 X509_VERIFY_PARAM_set_flags(*pm, flags);
2285
2286         if (purpose)
2287                 X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2288
2289         end:
2290
2291         (*pargs)++;
2292
2293         if (pargc)
2294                 *pargc -= *pargs - oldargs;
2295
2296         return 1;
2297
2298         }
2299
2300 static void nodes_print(BIO *out, const char *name,
2301         STACK_OF(X509_POLICY_NODE) *nodes)
2302         {
2303         X509_POLICY_NODE *node;
2304         int i;
2305         BIO_printf(out, "%s Policies:", name);
2306         if (nodes)
2307                 {
2308                 BIO_puts(out, "\n");
2309                 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++)
2310                         {
2311                         node = sk_X509_POLICY_NODE_value(nodes, i);
2312                         X509_POLICY_NODE_print(out, node, 2);
2313                         }
2314                 }
2315         else
2316                 BIO_puts(out, " <empty>\n");
2317         }
2318
2319 void policies_print(BIO *out, X509_STORE_CTX *ctx)
2320         {
2321         X509_POLICY_TREE *tree;
2322         int explicit_policy;
2323         int free_out = 0;
2324         if (out == NULL)
2325                 {
2326                 out = BIO_new_fp(stderr, BIO_NOCLOSE);
2327                 free_out = 1;
2328                 }
2329         tree = X509_STORE_CTX_get0_policy_tree(ctx);
2330         explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2331
2332         BIO_printf(out, "Require explicit Policy: %s\n",
2333                                 explicit_policy ? "True" : "False");
2334
2335         nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2336         nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2337         if (free_out)
2338                 BIO_free(out);
2339         }
2340
2341 #ifndef OPENSSL_NO_JPAKE
2342
2343 static JPAKE_CTX *jpake_init(const char *us, const char *them,
2344                                                          const char *secret)
2345         {
2346         BIGNUM *p = NULL;
2347         BIGNUM *g = NULL;
2348         BIGNUM *q = NULL;
2349         BIGNUM *bnsecret = BN_new();
2350         JPAKE_CTX *ctx;
2351
2352         /* Use a safe prime for p (that we found earlier) */
2353         BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2354         g = BN_new();
2355         BN_set_word(g, 2);
2356         q = BN_new();
2357         BN_rshift1(q, p);
2358
2359         BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2360
2361         ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2362         BN_free(bnsecret);
2363         BN_free(q);
2364         BN_free(g);
2365         BN_free(p);
2366
2367         return ctx;
2368         }
2369
2370 static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2371         {
2372         BN_print(conn, p->gx);
2373         BIO_puts(conn, "\n");
2374         BN_print(conn, p->zkpx.gr);
2375         BIO_puts(conn, "\n");
2376         BN_print(conn, p->zkpx.b);
2377         BIO_puts(conn, "\n");
2378         }
2379
2380 static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2381         {
2382         JPAKE_STEP1 s1;
2383
2384         JPAKE_STEP1_init(&s1);
2385         JPAKE_STEP1_generate(&s1, ctx);
2386         jpake_send_part(bconn, &s1.p1);
2387         jpake_send_part(bconn, &s1.p2);
2388         (void)BIO_flush(bconn);
2389         JPAKE_STEP1_release(&s1);
2390         }
2391
2392 static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2393         {
2394         JPAKE_STEP2 s2;
2395
2396         JPAKE_STEP2_init(&s2);
2397         JPAKE_STEP2_generate(&s2, ctx);
2398         jpake_send_part(bconn, &s2);
2399         (void)BIO_flush(bconn);
2400         JPAKE_STEP2_release(&s2);
2401         }
2402
2403 static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2404         {
2405         JPAKE_STEP3A s3a;
2406
2407         JPAKE_STEP3A_init(&s3a);
2408         JPAKE_STEP3A_generate(&s3a, ctx);
2409         BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2410         (void)BIO_flush(bconn);
2411         JPAKE_STEP3A_release(&s3a);
2412         }
2413
2414 static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2415         {
2416         JPAKE_STEP3B s3b;
2417
2418         JPAKE_STEP3B_init(&s3b);
2419         JPAKE_STEP3B_generate(&s3b, ctx);
2420         BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2421         (void)BIO_flush(bconn);
2422         JPAKE_STEP3B_release(&s3b);
2423         }
2424
2425 static void readbn(BIGNUM **bn, BIO *bconn)
2426         {
2427         char buf[10240];
2428         int l;
2429
2430         l = BIO_gets(bconn, buf, sizeof buf);
2431         assert(l >= 0);
2432         assert(buf[l-1] == '\n');
2433         buf[l-1] = '\0';
2434         BN_hex2bn(bn, buf);
2435         }
2436
2437 static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2438         {
2439         readbn(&p->gx, bconn);
2440         readbn(&p->zkpx.gr, bconn);
2441         readbn(&p->zkpx.b, bconn);
2442         }
2443
2444 static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2445         {
2446         JPAKE_STEP1 s1;
2447
2448         JPAKE_STEP1_init(&s1);
2449         jpake_receive_part(&s1.p1, bconn);
2450         jpake_receive_part(&s1.p2, bconn);
2451         if(!JPAKE_STEP1_process(ctx, &s1))
2452                 {
2453                 ERR_print_errors(bio_err);
2454                 exit(1);
2455                 }
2456         JPAKE_STEP1_release(&s1);
2457         }
2458
2459 static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2460         {
2461         JPAKE_STEP2 s2;
2462
2463         JPAKE_STEP2_init(&s2);
2464         jpake_receive_part(&s2, bconn);
2465         if(!JPAKE_STEP2_process(ctx, &s2))
2466                 {
2467                 ERR_print_errors(bio_err);
2468                 exit(1);
2469                 }
2470         JPAKE_STEP2_release(&s2);
2471         }
2472
2473 static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2474         {
2475         JPAKE_STEP3A s3a;
2476         int l;
2477
2478         JPAKE_STEP3A_init(&s3a);
2479         l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2480         assert(l == sizeof s3a.hhk);
2481         if(!JPAKE_STEP3A_process(ctx, &s3a))
2482                 {
2483                 ERR_print_errors(bio_err);
2484                 exit(1);
2485                 }
2486         JPAKE_STEP3A_release(&s3a);
2487         }
2488
2489 static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2490         {
2491         JPAKE_STEP3B s3b;
2492         int l;
2493
2494         JPAKE_STEP3B_init(&s3b);
2495         l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2496         assert(l == sizeof s3b.hk);
2497         if(!JPAKE_STEP3B_process(ctx, &s3b))
2498                 {
2499                 ERR_print_errors(bio_err);
2500                 exit(1);
2501                 }
2502         JPAKE_STEP3B_release(&s3b);
2503         }
2504
2505 void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2506         {
2507         JPAKE_CTX *ctx;
2508         BIO *bconn;
2509
2510         BIO_puts(out, "Authenticating with JPAKE\n");
2511
2512         ctx = jpake_init("client", "server", secret);
2513
2514         bconn = BIO_new(BIO_f_buffer());
2515         BIO_push(bconn, conn);
2516
2517         jpake_send_step1(bconn, ctx);
2518         jpake_receive_step1(ctx, bconn);
2519         jpake_send_step2(bconn, ctx);
2520         jpake_receive_step2(ctx, bconn);
2521         jpake_send_step3a(bconn, ctx);
2522         jpake_receive_step3b(ctx, bconn);
2523
2524         /*
2525          * The problem is that you must use the derived key in the
2526          * session key or you are subject to man-in-the-middle
2527          * attacks.
2528          */
2529         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2530                  " be MitMed. See the version in HEAD for how to do it"
2531                  " properly)\n");
2532
2533         BIO_pop(bconn);
2534         BIO_free(bconn);
2535         }
2536
2537 void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2538         {
2539         JPAKE_CTX *ctx;
2540         BIO *bconn;
2541
2542         BIO_puts(out, "Authenticating with JPAKE\n");
2543
2544         ctx = jpake_init("server", "client", secret);
2545
2546         bconn = BIO_new(BIO_f_buffer());
2547         BIO_push(bconn, conn);
2548
2549         jpake_receive_step1(ctx, bconn);
2550         jpake_send_step1(bconn, ctx);
2551         jpake_receive_step2(ctx, bconn);
2552         jpake_send_step2(bconn, ctx);
2553         jpake_receive_step3a(ctx, bconn);
2554         jpake_send_step3b(bconn, ctx);
2555
2556         /*
2557          * The problem is that you must use the derived key in the
2558          * session key or you are subject to man-in-the-middle
2559          * attacks.
2560          */
2561         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2562                  " be MitMed. See the version in HEAD for how to do it"
2563                  " properly)\n");
2564
2565         BIO_pop(bconn);
2566         BIO_free(bconn);
2567         }
2568
2569 #endif