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(err,"no engine specified\n");
 870                 else
 871                         {
 872                         pkey = ENGINE_load_private_key(e, file,
 873                                 ui_method, &cb_data);
 874                         if (!pkey)
 875                                 {
 876                                 BIO_printf(err,"cannot load %s from engine\n",key_descrip);
 877                                 ERR_print_errors(err);
 878                                 }
 879                         }
 880                 goto end;
 881                 }
 882 #endif
 883         key=BIO_new(BIO_s_file());
 884         if (key == NULL)
 885                 {
 886                 ERR_print_errors(err);
 887                 goto end;
 888                 }
 889         if (file == NULL && maybe_stdin)
 890                 {
 891                 setvbuf(stdin, NULL, _IONBF, 0);
 892                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 893                 }
 894         else
 895                 if (BIO_read_filename(key,file) <= 0)
 896                         {
 897                         BIO_printf(err, "Error opening %s %s\n",
 898                                 key_descrip, file);
 899                         ERR_print_errors(err);
 900                         goto end;
 901                         }
 902         if (format == FORMAT_ASN1)
 903                 {
 904                 pkey=d2i_PrivateKey_bio(key, NULL);
 905                 }
 906         else if (format == FORMAT_PEM)
 907                 {
 908                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 909                         (pem_password_cb *)password_callback, &cb_data);
 910                 }
 911 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 912         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 913                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 914 #endif
 915         else if (format == FORMAT_PKCS12)
 916                 {
 917                 if (!load_pkcs12(err, key, key_descrip,
 918                                 (pem_password_cb *)password_callback, &cb_data,
 919                                 &pkey, NULL, NULL))
 920                         goto end;
 921                 }
 922         else
 923                 {
 924                 BIO_printf(err,"bad input format specified for key file\n");
 925                 goto end;
 926                 }
 927  end:
 928         if (key != NULL) BIO_free(key);
 929         if (pkey == NULL)
 930                 {
 931                 BIO_printf(err,"unable to load %s\n", key_descrip);
 932                 ERR_print_errors(err);
 933                 }
 934         return(pkey);
 935         }
 936
 937 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
 938         const char *pass, ENGINE *e, const char *key_descrip)
 939         {
 940         BIO *key=NULL;
 941         EVP_PKEY *pkey=NULL;
 942         PW_CB_DATA cb_data;
 943
 944         cb_data.password = pass;
 945         cb_data.prompt_info = file;
 946
 947         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 948                 {
 949                 BIO_printf(err,"no keyfile specified\n");
 950                 goto end;
 951                 }
 952 #ifndef OPENSSL_NO_ENGINE
 953         if (format == FORMAT_ENGINE)
 954                 {
 955                 if (!e)
 956                         BIO_printf(bio_err,"no engine specified\n");
 957                 else
 958                         pkey = ENGINE_load_public_key(e, file,
 959                                 ui_method, &cb_data);
 960                 goto end;
 961                 }
 962 #endif
 963         key=BIO_new(BIO_s_file());
 964         if (key == NULL)
 965                 {
 966                 ERR_print_errors(err);
 967                 goto end;
 968                 }
 969         if (file == NULL && maybe_stdin)
 970                 {
 971                 setvbuf(stdin, NULL, _IONBF, 0);
 972                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 973                 }
 974         else
 975                 if (BIO_read_filename(key,file) <= 0)
 976                         {
 977                         BIO_printf(err, "Error opening %s %s\n",
 978                                 key_descrip, file);
 979                         ERR_print_errors(err);
 980                         goto end;
 981                 }
 982         if (format == FORMAT_ASN1)
 983                 {
 984                 pkey=d2i_PUBKEY_bio(key, NULL);
 985                 }
 986         else if (format == FORMAT_PEM)
 987                 {
 988                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 989                         (pem_password_cb *)password_callback, &cb_data);
 990                 }
 991 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 992         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 993                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 994 #endif
 995         else
 996                 {
 997                 BIO_printf(err,"bad input format specified for key file\n");
 998                 goto end;
 999                 }
1000  end:
1001         if (key != NULL) BIO_free(key);
1002         if (pkey == NULL)
1003                 BIO_printf(err,"unable to load %s\n", key_descrip);
1004         return(pkey);
1005         }
1006
1007 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1008 static EVP_PKEY *
1009 load_netscape_key(BIO *err, BIO *key, const char *file,
1010                 const char *key_descrip, int format)
1011         {
1012         EVP_PKEY *pkey;
1013         BUF_MEM *buf;
1014         RSA     *rsa;
1015         const unsigned char *p;
1016         int size, i;
1017
1018         buf=BUF_MEM_new();
1019         pkey = EVP_PKEY_new();
1020         size = 0;
1021         if (buf == NULL || pkey == NULL)
1022                 goto error;
1023         for (;;)
1024                 {
1025                 if (!BUF_MEM_grow_clean(buf,size+1024*10))
1026                         goto error;
1027                 i = BIO_read(key, &(buf->data[size]), 1024*10);
1028                 size += i;
1029                 if (i == 0)
1030                         break;
1031                 if (i < 0)
1032                         {
1033                                 BIO_printf(err, "Error reading %s %s",
1034                                         key_descrip, file);
1035                                 goto error;
1036                         }
1037                 }
1038         p=(unsigned char *)buf->data;
1039         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
1040                 (format == FORMAT_IISSGC ? 1 : 0));
1041         if (rsa == NULL)
1042                 goto error;
1043         BUF_MEM_free(buf);
1044         EVP_PKEY_set1_RSA(pkey, rsa);
1045         return pkey;
1046 error:
1047         BUF_MEM_free(buf);
1048         EVP_PKEY_free(pkey);
1049         return NULL;
1050         }
1051 #endif /* ndef OPENSSL_NO_RC4 */
1052
1053 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1054         const char *pass, ENGINE *e, const char *cert_descrip)
1055         {
1056         BIO *certs;
1057         int i;
1058         STACK_OF(X509) *othercerts = NULL;
1059         STACK_OF(X509_INFO) *allcerts = NULL;
1060         X509_INFO *xi;
1061         PW_CB_DATA cb_data;
1062
1063         cb_data.password = pass;
1064         cb_data.prompt_info = file;
1065
1066         if((certs = BIO_new(BIO_s_file())) == NULL)
1067                 {
1068                 ERR_print_errors(err);
1069                 goto end;
1070                 }
1071
1072         if (file == NULL)
1073                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
1074         else
1075                 {
1076                 if (BIO_read_filename(certs,file) <= 0)
1077                         {
1078                         BIO_printf(err, "Error opening %s %s\n",
1079                                 cert_descrip, file);
1080                         ERR_print_errors(err);
1081                         goto end;
1082                         }
1083                 }
1084
1085         if      (format == FORMAT_PEM)
1086                 {
1087                 othercerts = sk_X509_new_null();
1088                 if(!othercerts)
1089                         {
1090                         sk_X509_free(othercerts);
1091                         othercerts = NULL;
1092                         goto end;
1093                         }
1094                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1095                                 (pem_password_cb *)password_callback, &cb_data);
1096                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1097                         {
1098                         xi = sk_X509_INFO_value (allcerts, i);
1099                         if (xi->x509)
1100                                 {
1101                                 sk_X509_push(othercerts, xi->x509);
1102                                 xi->x509 = NULL;
1103                                 }
1104                         }
1105                 goto end;
1106                 }
1107         else    {
1108                 BIO_printf(err,"bad input format specified for %s\n",
1109                         cert_descrip);
1110                 goto end;
1111                 }
1112 end:
1113         if (othercerts == NULL)
1114                 {
1115                 BIO_printf(err,"unable to load certificates\n");
1116                 ERR_print_errors(err);
1117                 }
1118         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1119         if (certs != NULL) BIO_free(certs);
1120         return(othercerts);
1121         }
1122
1123
1124 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1125 /* Return error for unknown extensions */
1126 #define X509V3_EXT_DEFAULT              0
1127 /* Print error for unknown extensions */
1128 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1129 /* ASN1 parse unknown extensions */
1130 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1131 /* BIO_dump unknown extensions */
1132 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1133
1134 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1135                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1136
1137 int set_cert_ex(unsigned long *flags, const char *arg)
1138 {
1139         static const NAME_EX_TBL cert_tbl[] = {
1140                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1141                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1142                 { "no_header", X509_FLAG_NO_HEADER, 0},
1143                 { "no_version", X509_FLAG_NO_VERSION, 0},
1144                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1145                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1146                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1147                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1148                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1149                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1150                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1151                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1152                 { "no_aux", X509_FLAG_NO_AUX, 0},
1153                 { "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1154                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1155                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1156                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1157                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1158                 { NULL, 0, 0}
1159         };
1160         return set_multi_opts(flags, arg, cert_tbl);
1161 }
1162
1163 int set_name_ex(unsigned long *flags, const char *arg)
1164 {
1165         static const NAME_EX_TBL ex_tbl[] = {
1166                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1167                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1168                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1169                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1170                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1171                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1172                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1173                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1174                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1175                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1176                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1177                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1178                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1179                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1180                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1181                 { "dn_rev", XN_FLAG_DN_REV, 0},
1182                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1183                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1184                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1185                 { "align", XN_FLAG_FN_ALIGN, 0},
1186                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1187                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1188                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1189                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1190                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1191                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1192                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1193                 { NULL, 0, 0}
1194         };
1195         return set_multi_opts(flags, arg, ex_tbl);
1196 }
1197
1198 int set_ext_copy(int *copy_type, const char *arg)
1199 {
1200         if (!strcasecmp(arg, "none"))
1201                 *copy_type = EXT_COPY_NONE;
1202         else if (!strcasecmp(arg, "copy"))
1203                 *copy_type = EXT_COPY_ADD;
1204         else if (!strcasecmp(arg, "copyall"))
1205                 *copy_type = EXT_COPY_ALL;
1206         else
1207                 return 0;
1208         return 1;
1209 }
1210
1211 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1212 {
1213         STACK_OF(X509_EXTENSION) *exts = NULL;
1214         X509_EXTENSION *ext, *tmpext;
1215         ASN1_OBJECT *obj;
1216         int i, idx, ret = 0;
1217         if (!x || !req || (copy_type == EXT_COPY_NONE))
1218                 return 1;
1219         exts = X509_REQ_get_extensions(req);
1220
1221         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1222                 ext = sk_X509_EXTENSION_value(exts, i);
1223                 obj = X509_EXTENSION_get_object(ext);
1224                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1225                 /* Does extension exist? */
1226                 if (idx != -1) {
1227                         /* If normal copy don't override existing extension */
1228                         if (copy_type == EXT_COPY_ADD)
1229                                 continue;
1230                         /* Delete all extensions of same type */
1231                         do {
1232                                 tmpext = X509_get_ext(x, idx);
1233                                 X509_delete_ext(x, idx);
1234                                 X509_EXTENSION_free(tmpext);
1235                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1236                         } while (idx != -1);
1237                 }
1238                 if (!X509_add_ext(x, ext, -1))
1239                         goto end;
1240         }
1241
1242         ret = 1;
1243
1244         end:
1245
1246         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1247
1248         return ret;
1249 }
1250
1251
1252
1253
1254 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1255 {
1256         STACK_OF(CONF_VALUE) *vals;
1257         CONF_VALUE *val;
1258         int i, ret = 1;
1259         if(!arg) return 0;
1260         vals = X509V3_parse_list(arg);
1261         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1262                 val = sk_CONF_VALUE_value(vals, i);
1263                 if (!set_table_opts(flags, val->name, in_tbl))
1264                         ret = 0;
1265         }
1266         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1267         return ret;
1268 }
1269
1270 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1271 {
1272         char c;
1273         const NAME_EX_TBL *ptbl;
1274         c = arg[0];
1275
1276         if(c == '-') {
1277                 c = 0;
1278                 arg++;
1279         } else if (c == '+') {
1280                 c = 1;
1281                 arg++;
1282         } else c = 1;
1283
1284         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1285                 if(!strcasecmp(arg, ptbl->name)) {
1286                         *flags &= ~ptbl->mask;
1287                         if(c) *flags |= ptbl->flag;
1288                         else *flags &= ~ptbl->flag;
1289                         return 1;
1290                 }
1291         }
1292         return 0;
1293 }
1294
1295 void print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)
1296 {
1297         char *buf;
1298         char mline = 0;
1299         int indent = 0;
1300
1301         if(title) BIO_puts(out, title);
1302         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1303                 mline = 1;
1304                 indent = 4;
1305         }
1306         if(lflags == XN_FLAG_COMPAT) {
1307                 buf = X509_NAME_oneline(nm, 0, 0);
1308                 BIO_puts(out, buf);
1309                 BIO_puts(out, "\n");
1310                 OPENSSL_free(buf);
1311         } else {
1312                 if(mline) BIO_puts(out, "\n");
1313                 X509_NAME_print_ex(out, nm, indent, lflags);
1314                 BIO_puts(out, "\n");
1315         }
1316 }
1317
1318 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1319 {
1320         X509_STORE *store;
1321         X509_LOOKUP *lookup;
1322         if(!(store = X509_STORE_new())) goto end;
1323         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1324         if (lookup == NULL) goto end;
1325         if (CAfile) {
1326                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1327                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1328                         goto end;
1329                 }
1330         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1331
1332         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1333         if (lookup == NULL) goto end;
1334         if (CApath) {
1335                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1336                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1337                         goto end;
1338                 }
1339         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1340
1341         ERR_clear_error();
1342         return store;
1343         end:
1344         X509_STORE_free(store);
1345         return NULL;
1346 }
1347
1348 #ifndef OPENSSL_NO_ENGINE
1349 /* Try to load an engine in a shareable library */
1350 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1351         {
1352         ENGINE *e = ENGINE_by_id("dynamic");
1353         if (e)
1354                 {
1355                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1356                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1357                         {
1358                         ENGINE_free(e);
1359                         e = NULL;
1360                         }
1361                 }
1362         return e;
1363         }
1364
1365 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1366         {
1367         ENGINE *e = NULL;
1368
1369         if (engine)
1370                 {
1371                 if(strcmp(engine, "auto") == 0)
1372                         {
1373                         BIO_printf(err,"enabling auto ENGINE support\n");
1374                         ENGINE_register_all_complete();
1375                         return NULL;
1376                         }
1377                 if((e = ENGINE_by_id(engine)) == NULL
1378                         && (e = try_load_engine(err, engine, debug)) == NULL)
1379                         {
1380                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1381                         ERR_print_errors(err);
1382                         return NULL;
1383                         }
1384                 if (debug)
1385                         {
1386                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1387                                 0, err, 0);
1388                         }
1389                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1390                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1391                         {
1392                         BIO_printf(err,"can't use that engine\n");
1393                         ERR_print_errors(err);
1394                         ENGINE_free(e);
1395                         return NULL;
1396                         }
1397
1398                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1399
1400                 /* Free our "structural" reference. */
1401                 ENGINE_free(e);
1402                 }
1403         return e;
1404         }
1405 #endif
1406
1407 int load_config(BIO *err, CONF *cnf)
1408         {
1409         if (!cnf)
1410                 cnf = config;
1411         if (!cnf)
1412                 return 1;
1413
1414         OPENSSL_load_builtin_modules();
1415
1416         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1417                 {
1418                 BIO_printf(err, "Error configuring OpenSSL\n");
1419                 ERR_print_errors(err);
1420                 return 0;
1421                 }
1422         return 1;
1423         }
1424
1425 char *make_config_name()
1426         {
1427         const char *t=X509_get_default_cert_area();
1428         size_t len;
1429         char *p;
1430
1431         len=strlen(t)+strlen(OPENSSL_CONF)+2;
1432         p=OPENSSL_malloc(len);
1433         BUF_strlcpy(p,t,len);
1434 #ifndef OPENSSL_SYS_VMS
1435         BUF_strlcat(p,"/",len);
1436 #endif
1437         BUF_strlcat(p,OPENSSL_CONF,len);
1438
1439         return p;
1440         }
1441
1442 static unsigned long index_serial_hash(const char **a)
1443         {
1444         const char *n;
1445
1446         n=a[DB_serial];
1447         while (*n == '0') n++;
1448         return(lh_strhash(n));
1449         }
1450
1451 static int index_serial_cmp(const char **a, const char **b)
1452         {
1453         const char *aa,*bb;
1454
1455         for (aa=a[DB_serial]; *aa == '0'; aa++);
1456         for (bb=b[DB_serial]; *bb == '0'; bb++);
1457         return(strcmp(aa,bb));
1458         }
1459
1460 static int index_name_qual(char **a)
1461         { return(a[0][0] == 'V'); }
1462
1463 static unsigned long index_name_hash(const char **a)
1464         { return(lh_strhash(a[DB_name])); }
1465
1466 int index_name_cmp(const char **a, const char **b)
1467         { return(strcmp(a[DB_name],
1468              b[DB_name])); }
1469
1470 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash,const char **)
1471 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp,const char **)
1472 static IMPLEMENT_LHASH_HASH_FN(index_name_hash,const char **)
1473 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp,const char **)
1474
1475 #undef BSIZE
1476 #define BSIZE 256
1477
1478 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1479         {
1480         BIO *in=NULL;
1481         BIGNUM *ret=NULL;
1482         MS_STATIC char buf[1024];
1483         ASN1_INTEGER *ai=NULL;
1484
1485         ai=ASN1_INTEGER_new();
1486         if (ai == NULL) goto err;
1487
1488         if ((in=BIO_new(BIO_s_file())) == NULL)
1489                 {
1490                 ERR_print_errors(bio_err);
1491                 goto err;
1492                 }
1493
1494         if (BIO_read_filename(in,serialfile) <= 0)
1495                 {
1496                 if (!create)
1497                         {
1498                         perror(serialfile);
1499                         goto err;
1500                         }
1501                 else
1502                         {
1503                         ret=BN_new();
1504                         if (ret == NULL || !rand_serial(ret, ai))
1505                                 BIO_printf(bio_err, "Out of memory\n");
1506                         }
1507                 }
1508         else
1509                 {
1510                 if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
1511                         {
1512                         BIO_printf(bio_err,"unable to load number from %s\n",
1513                                 serialfile);
1514                         goto err;
1515                         }
1516                 ret=ASN1_INTEGER_to_BN(ai,NULL);
1517                 if (ret == NULL)
1518                         {
1519                         BIO_printf(bio_err,"error converting number from bin to BIGNUM\n");
1520                         goto err;
1521                         }
1522                 }
1523
1524         if (ret && retai)
1525                 {
1526                 *retai = ai;
1527                 ai = NULL;
1528                 }
1529  err:
1530         if (in != NULL) BIO_free(in);
1531         if (ai != NULL) ASN1_INTEGER_free(ai);
1532         return(ret);
1533         }
1534
1535 int save_serial(char *serialfile, char *suffix, BIGNUM *serial, ASN1_INTEGER **retai)
1536         {
1537         char buf[1][BSIZE];
1538         BIO *out = NULL;
1539         int ret=0;
1540         ASN1_INTEGER *ai=NULL;
1541         int j;
1542
1543         if (suffix == NULL)
1544                 j = strlen(serialfile);
1545         else
1546                 j = strlen(serialfile) + strlen(suffix) + 1;
1547         if (j >= BSIZE)
1548                 {
1549                 BIO_printf(bio_err,"file name too long\n");
1550                 goto err;
1551                 }
1552
1553         if (suffix == NULL)
1554                 BUF_strlcpy(buf[0], serialfile, BSIZE);
1555         else
1556                 {
1557 #ifndef OPENSSL_SYS_VMS
1558                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1559 #else
1560                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1561 #endif
1562                 }
1563 #ifdef RL_DEBUG
1564         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1565 #endif
1566         out=BIO_new(BIO_s_file());
1567         if (out == NULL)
1568                 {
1569                 ERR_print_errors(bio_err);
1570                 goto err;
1571                 }
1572         if (BIO_write_filename(out,buf[0]) <= 0)
1573                 {
1574                 perror(serialfile);
1575                 goto err;
1576                 }
1577
1578         if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)
1579                 {
1580                 BIO_printf(bio_err,"error converting serial to ASN.1 format\n");
1581                 goto err;
1582                 }
1583         i2a_ASN1_INTEGER(out,ai);
1584         BIO_puts(out,"\n");
1585         ret=1;
1586         if (retai)
1587                 {
1588                 *retai = ai;
1589                 ai = NULL;
1590                 }
1591 err:
1592         if (out != NULL) BIO_free_all(out);
1593         if (ai != NULL) ASN1_INTEGER_free(ai);
1594         return(ret);
1595         }
1596
1597 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1598         {
1599         char buf[5][BSIZE];
1600         int i,j;
1601         struct stat sb;
1602
1603         i = strlen(serialfile) + strlen(old_suffix);
1604         j = strlen(serialfile) + strlen(new_suffix);
1605         if (i > j) j = i;
1606         if (j + 1 >= BSIZE)
1607                 {
1608                 BIO_printf(bio_err,"file name too long\n");
1609                 goto err;
1610                 }
1611
1612 #ifndef OPENSSL_SYS_VMS
1613         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1614                 serialfile, new_suffix);
1615 #else
1616         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1617                 serialfile, new_suffix);
1618 #endif
1619 #ifndef OPENSSL_SYS_VMS
1620         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1621                 serialfile, old_suffix);
1622 #else
1623         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1624                 serialfile, old_suffix);
1625 #endif
1626         if (stat(serialfile,&sb) < 0)
1627                 {
1628                 if (errno != ENOENT
1629 #ifdef ENOTDIR
1630                         && errno != ENOTDIR
1631 #endif
1632                    )
1633                         goto err;
1634                 }
1635         else
1636                 {
1637 #ifdef RL_DEBUG
1638                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1639                         serialfile, buf[1]);
1640 #endif
1641                 if (rename(serialfile,buf[1]) < 0)
1642                         {
1643                         BIO_printf(bio_err,
1644                                 "unable to rename %s to %s\n",
1645                                 serialfile, buf[1]);
1646                         perror("reason");
1647                         goto err;
1648                         }
1649                 }
1650 #ifdef RL_DEBUG
1651         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1652                 buf[0],serialfile);
1653 #endif
1654         if (rename(buf[0],serialfile) < 0)
1655                 {
1656                 BIO_printf(bio_err,
1657                         "unable to rename %s to %s\n",
1658                         buf[0],serialfile);
1659                 perror("reason");
1660                 rename(buf[1],serialfile);
1661                 goto err;
1662                 }
1663         return 1;
1664  err:
1665         return 0;
1666         }
1667
1668 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1669         {
1670         BIGNUM *btmp;
1671         int ret = 0;
1672         if (b)
1673                 btmp = b;
1674         else
1675                 btmp = BN_new();
1676
1677         if (!btmp)
1678                 return 0;
1679
1680         if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1681                 goto error;
1682         if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1683                 goto error;
1684
1685         ret = 1;
1686
1687         error:
1688
1689         if (!b)
1690                 BN_free(btmp);
1691
1692         return ret;
1693         }
1694
1695 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1696         {
1697         CA_DB *retdb = NULL;
1698         TXT_DB *tmpdb = NULL;
1699         BIO *in = BIO_new(BIO_s_file());
1700         CONF *dbattr_conf = NULL;
1701         char buf[1][BSIZE];
1702         long errorline= -1;
1703
1704         if (in == NULL)
1705                 {
1706                 ERR_print_errors(bio_err);
1707                 goto err;
1708                 }
1709         if (BIO_read_filename(in,dbfile) <= 0)
1710                 {
1711                 perror(dbfile);
1712                 BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
1713                 goto err;
1714                 }
1715         if ((tmpdb = TXT_DB_read(in,DB_NUMBER)) == NULL)
1716                 {
1717                 if (tmpdb != NULL) TXT_DB_free(tmpdb);
1718                 goto err;
1719                 }
1720
1721 #ifndef OPENSSL_SYS_VMS
1722         BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1723 #else
1724         BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1725 #endif
1726         dbattr_conf = NCONF_new(NULL);
1727         if (NCONF_load(dbattr_conf,buf[0],&errorline) <= 0)
1728                 {
1729                 if (errorline > 0)
1730                         {
1731                         BIO_printf(bio_err,
1732                                 "error on line %ld of db attribute file '%s'\n"
1733                                 ,errorline,buf[0]);
1734                         goto err;
1735                         }
1736                 else
1737                         {
1738                         NCONF_free(dbattr_conf);
1739                         dbattr_conf = NULL;
1740                         }
1741                 }
1742
1743         if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL)
1744                 {
1745                 fprintf(stderr, "Out of memory\n");
1746                 goto err;
1747                 }
1748
1749         retdb->db = tmpdb;
1750         tmpdb = NULL;
1751         if (db_attr)
1752                 retdb->attributes = *db_attr;
1753         else
1754                 {
1755                 retdb->attributes.unique_subject = 1;
1756                 }
1757
1758         if (dbattr_conf)
1759                 {
1760                 char *p = NCONF_get_string(dbattr_conf,NULL,"unique_subject");
1761                 if (p)
1762                         {
1763 #ifdef RL_DEBUG
1764                         BIO_printf(bio_err, "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1765 #endif
1766                         retdb->attributes.unique_subject = parse_yesno(p,1);
1767                         }
1768                 }
1769
1770  err:
1771         if (dbattr_conf) NCONF_free(dbattr_conf);
1772         if (tmpdb) TXT_DB_free(tmpdb);
1773         if (in) BIO_free_all(in);
1774         return retdb;
1775         }
1776
1777 int index_index(CA_DB *db)
1778         {
1779         if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1780                                 LHASH_HASH_FN(index_serial_hash),
1781                                 LHASH_COMP_FN(index_serial_cmp)))
1782                 {
1783                 BIO_printf(bio_err,
1784                   "error creating serial number index:(%ld,%ld,%ld)\n",
1785                                         db->db->error,db->db->arg1,db->db->arg2);
1786                         return 0;
1787                 }
1788
1789         if (db->attributes.unique_subject
1790                 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1791                         LHASH_HASH_FN(index_name_hash),
1792                         LHASH_COMP_FN(index_name_cmp)))
1793                 {
1794                 BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",
1795                         db->db->error,db->db->arg1,db->db->arg2);
1796                 return 0;
1797                 }
1798         return 1;
1799         }
1800
1801 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1802         {
1803         char buf[3][BSIZE];
1804         BIO *out = BIO_new(BIO_s_file());
1805         int j;
1806
1807         if (out == NULL)
1808                 {
1809                 ERR_print_errors(bio_err);
1810                 goto err;
1811                 }
1812
1813         j = strlen(dbfile) + strlen(suffix);
1814         if (j + 6 >= BSIZE)
1815                 {
1816                 BIO_printf(bio_err,"file name too long\n");
1817                 goto err;
1818                 }
1819
1820 #ifndef OPENSSL_SYS_VMS
1821         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1822 #else
1823         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1824 #endif
1825 #ifndef OPENSSL_SYS_VMS
1826         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1827 #else
1828         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1829 #endif
1830 #ifndef OPENSSL_SYS_VMS
1831         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1832 #else
1833         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1834 #endif
1835 #ifdef RL_DEBUG
1836         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1837 #endif
1838         if (BIO_write_filename(out,buf[0]) <= 0)
1839                 {
1840                 perror(dbfile);
1841                 BIO_printf(bio_err,"unable to open '%s'\n", dbfile);
1842                 goto err;
1843                 }
1844         j=TXT_DB_write(out,db->db);
1845         if (j <= 0) goto err;
1846
1847         BIO_free(out);
1848
1849         out = BIO_new(BIO_s_file());
1850 #ifdef RL_DEBUG
1851         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1852 #endif
1853         if (BIO_write_filename(out,buf[1]) <= 0)
1854                 {
1855                 perror(buf[2]);
1856                 BIO_printf(bio_err,"unable to open '%s'\n", buf[2]);
1857                 goto err;
1858                 }
1859         BIO_printf(out,"unique_subject = %s\n",
1860                 db->attributes.unique_subject ? "yes" : "no");
1861         BIO_free(out);
1862
1863         return 1;
1864  err:
1865         return 0;
1866         }
1867
1868 int rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)
1869         {
1870         char buf[5][BSIZE];
1871         int i,j;
1872         struct stat sb;
1873
1874         i = strlen(dbfile) + strlen(old_suffix);
1875         j = strlen(dbfile) + strlen(new_suffix);
1876         if (i > j) j = i;
1877         if (j + 6 >= BSIZE)
1878                 {
1879                 BIO_printf(bio_err,"file name too long\n");
1880                 goto err;
1881                 }
1882
1883 #ifndef OPENSSL_SYS_VMS
1884         j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1885 #else
1886         j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1887 #endif
1888 #ifndef OPENSSL_SYS_VMS
1889         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s",
1890                 dbfile, new_suffix);
1891 #else
1892         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s",
1893                 dbfile, new_suffix);
1894 #endif
1895 #ifndef OPENSSL_SYS_VMS
1896         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1897                 dbfile, new_suffix);
1898 #else
1899         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1900                 dbfile, new_suffix);
1901 #endif
1902 #ifndef OPENSSL_SYS_VMS
1903         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1904                 dbfile, old_suffix);
1905 #else
1906         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1907                 dbfile, old_suffix);
1908 #endif
1909 #ifndef OPENSSL_SYS_VMS
1910         j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s",
1911                 dbfile, old_suffix);
1912 #else
1913         j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s",
1914                 dbfile, old_suffix);
1915 #endif
1916         if (stat(dbfile,&sb) < 0)
1917                 {
1918                 if (errno != ENOENT
1919 #ifdef ENOTDIR
1920                         && errno != ENOTDIR
1921 #endif
1922                    )
1923                         goto err;
1924                 }
1925         else
1926                 {
1927 #ifdef RL_DEBUG
1928                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1929                         dbfile, buf[1]);
1930 #endif
1931                 if (rename(dbfile,buf[1]) < 0)
1932                         {
1933                         BIO_printf(bio_err,
1934                                 "unable to rename %s to %s\n",
1935                                 dbfile, buf[1]);
1936                         perror("reason");
1937                         goto err;
1938                         }
1939                 }
1940 #ifdef RL_DEBUG
1941         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1942                 buf[0],dbfile);
1943 #endif
1944         if (rename(buf[0],dbfile) < 0)
1945                 {
1946                 BIO_printf(bio_err,
1947                         "unable to rename %s to %s\n",
1948                         buf[0],dbfile);
1949                 perror("reason");
1950                 rename(buf[1],dbfile);
1951                 goto err;
1952                 }
1953         if (stat(buf[4],&sb) < 0)
1954                 {
1955                 if (errno != ENOENT
1956 #ifdef ENOTDIR
1957                         && errno != ENOTDIR
1958 #endif
1959                    )
1960                         goto err;
1961                 }
1962         else
1963                 {
1964 #ifdef RL_DEBUG
1965                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1966                         buf[4],buf[3]);
1967 #endif
1968                 if (rename(buf[4],buf[3]) < 0)
1969                         {
1970                         BIO_printf(bio_err,
1971                                 "unable to rename %s to %s\n",
1972                                 buf[4], buf[3]);
1973                         perror("reason");
1974                         rename(dbfile,buf[0]);
1975                         rename(buf[1],dbfile);
1976                         goto err;
1977                         }
1978                 }
1979 #ifdef RL_DEBUG
1980         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1981                 buf[2],buf[4]);
1982 #endif
1983         if (rename(buf[2],buf[4]) < 0)
1984                 {
1985                 BIO_printf(bio_err,
1986                         "unable to rename %s to %s\n",
1987                         buf[2],buf[4]);
1988                 perror("reason");
1989                 rename(buf[3],buf[4]);
1990                 rename(dbfile,buf[0]);
1991                 rename(buf[1],dbfile);
1992                 goto err;
1993                 }
1994         return 1;
1995  err:
1996         return 0;
1997         }
1998
1999 void free_index(CA_DB *db)
2000         {
2001         if (db)
2002                 {
2003                 if (db->db) TXT_DB_free(db->db);
2004                 OPENSSL_free(db);
2005                 }
2006         }
2007
2008 int parse_yesno(const char *str, int def)
2009         {
2010         int ret = def;
2011         if (str)
2012                 {
2013                 switch (*str)
2014                         {
2015                 case 'f': /* false */
2016                 case 'F': /* FALSE */
2017                 case 'n': /* no */
2018                 case 'N': /* NO */
2019                 case '0': /* 0 */
2020                         ret = 0;
2021                         break;
2022                 case 't': /* true */
2023                 case 'T': /* TRUE */
2024                 case 'y': /* yes */
2025                 case 'Y': /* YES */
2026                 case '1': /* 1 */
2027                         ret = 1;
2028                         break;
2029                 default:
2030                         ret = def;
2031                         break;
2032                         }
2033                 }
2034         return ret;
2035         }
2036
2037 /*
2038  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2039  * where characters may be escaped by \
2040  */
2041 X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2042         {
2043         size_t buflen = strlen(subject)+1; /* to copy the types and values into. due to escaping, the copy can only become shorter */
2044         char *buf = OPENSSL_malloc(buflen);
2045         size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2046         char **ne_types = OPENSSL_malloc(max_ne * sizeof (char *));
2047         char **ne_values = OPENSSL_malloc(max_ne * sizeof (char *));
2048         int *mval = OPENSSL_malloc (max_ne * sizeof (int));
2049
2050         char *sp = subject, *bp = buf;
2051         int i, ne_num = 0;
2052
2053         X509_NAME *n = NULL;
2054         int nid;
2055
2056         if (!buf || !ne_types || !ne_values)
2057                 {
2058                 BIO_printf(bio_err, "malloc error\n");
2059                 goto error;
2060                 }
2061
2062         if (*subject != '/')
2063                 {
2064                 BIO_printf(bio_err, "Subject does not start with '/'.\n");
2065                 goto error;
2066                 }
2067         sp++; /* skip leading / */
2068
2069         /* no multivalued RDN by default */
2070         mval[ne_num] = 0;
2071
2072         while (*sp)
2073                 {
2074                 /* collect type */
2075                 ne_types[ne_num] = bp;
2076                 while (*sp)
2077                         {
2078                         if (*sp == '\\') /* is there anything to escape in the type...? */
2079                                 {
2080                                 if (*++sp)
2081                                         *bp++ = *sp++;
2082                                 else
2083                                         {
2084                                         BIO_printf(bio_err, "escape character at end of string\n");
2085                                         goto error;
2086                                         }
2087                                 }
2088                         else if (*sp == '=')
2089                                 {
2090                                 sp++;
2091                                 *bp++ = '\0';
2092                                 break;
2093                                 }
2094                         else
2095                                 *bp++ = *sp++;
2096                         }
2097                 if (!*sp)
2098                         {
2099                         BIO_printf(bio_err, "end of string encountered while processing type of subject name element #%d\n", ne_num);
2100                         goto error;
2101                         }
2102                 ne_values[ne_num] = bp;
2103                 while (*sp)
2104                         {
2105                         if (*sp == '\\')
2106                                 {
2107                                 if (*++sp)
2108                                         *bp++ = *sp++;
2109                                 else
2110                                         {
2111                                         BIO_printf(bio_err, "escape character at end of string\n");
2112                                         goto error;
2113                                         }
2114                                 }
2115                         else if (*sp == '/')
2116                                 {
2117                                 sp++;
2118                                 /* no multivalued RDN by default */
2119                                 mval[ne_num+1] = 0;
2120                                 break;
2121                                 }
2122                         else if (*sp == '+' && multirdn)
2123                                 {
2124                                 /* a not escaped + signals a mutlivalued RDN */
2125                                 sp++;
2126                                 mval[ne_num+1] = -1;
2127                                 break;
2128                                 }
2129                         else
2130                                 *bp++ = *sp++;
2131                         }
2132                 *bp++ = '\0';
2133                 ne_num++;
2134                 }
2135
2136         if (!(n = X509_NAME_new()))
2137                 goto error;
2138
2139         for (i = 0; i < ne_num; i++)
2140                 {
2141                 if ((nid=OBJ_txt2nid(ne_types[i])) == NID_undef)
2142                         {
2143                         BIO_printf(bio_err, "Subject Attribute %s has no known NID, skipped\n", ne_types[i]);
2144                         continue;
2145                         }
2146
2147                 if (!*ne_values[i])
2148                         {
2149                         BIO_printf(bio_err, "No value provided for Subject Attribute %s, skipped\n", ne_types[i]);
2150                         continue;
2151                         }
2152
2153                 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char*)ne_values[i], -1,-1,mval[i]))
2154                         goto error;
2155                 }
2156
2157         OPENSSL_free(ne_values);
2158         OPENSSL_free(ne_types);
2159         OPENSSL_free(buf);
2160         return n;
2161
2162 error:
2163         X509_NAME_free(n);
2164         if (ne_values)
2165                 OPENSSL_free(ne_values);
2166         if (ne_types)
2167                 OPENSSL_free(ne_types);
2168         if (buf)
2169                 OPENSSL_free(buf);
2170         return NULL;
2171 }
2172
2173 /* This code MUST COME AFTER anything that uses rename() */
2174 #ifdef OPENSSL_SYS_WIN32
2175 int WIN32_rename(const char *from, const char *to)
2176         {
2177 #ifndef OPENSSL_SYS_WINCE
2178         /* Windows rename gives an error if 'to' exists, so delete it
2179          * first and ignore file not found errror
2180          */
2181         if((remove(to) != 0) && (errno != ENOENT))
2182                 return -1;
2183 #undef rename
2184         return rename(from, to);
2185 #else
2186         /* convert strings to UNICODE */
2187         {
2188         BOOL result = FALSE;
2189         WCHAR* wfrom;
2190         WCHAR* wto;
2191         int i;
2192         wfrom = malloc((strlen(from)+1)*2);
2193         wto = malloc((strlen(to)+1)*2);
2194         if (wfrom != NULL && wto != NULL)
2195                 {
2196                 for (i=0; i<(int)strlen(from)+1; i++)
2197                         wfrom[i] = (short)from[i];
2198                 for (i=0; i<(int)strlen(to)+1; i++)
2199                         wto[i] = (short)to[i];
2200                 result = MoveFile(wfrom, wto);
2201                 }
2202         if (wfrom != NULL)
2203                 free(wfrom);
2204         if (wto != NULL)
2205                 free(wto);
2206         return result;
2207         }
2208 #endif
2209         }
2210 #endif
2211
2212 int args_verify(char ***pargs, int *pargc,
2213                         int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2214         {
2215         ASN1_OBJECT *otmp = NULL;
2216         unsigned long flags = 0;
2217         int i;
2218         int purpose = 0;
2219         char **oldargs = *pargs;
2220         char *arg = **pargs, *argn = (*pargs)[1];
2221         if (!strcmp(arg, "-policy"))
2222                 {
2223                 if (!argn)
2224                         *badarg = 1;
2225                 else
2226                         {
2227                         otmp = OBJ_txt2obj(argn, 0);
2228                         if (!otmp)
2229                                 {
2230                                 BIO_printf(err, "Invalid Policy \"%s\"\n",
2231                                                                         argn);
2232                                 *badarg = 1;
2233                                 }
2234                         }
2235                 (*pargs)++;
2236                 }
2237         else if (strcmp(arg,"-purpose") == 0)
2238                 {
2239                 X509_PURPOSE *xptmp;
2240                 if (!argn)
2241                         *badarg = 1;
2242                 else
2243                         {
2244                         i = X509_PURPOSE_get_by_sname(argn);
2245                         if(i < 0)
2246                                 {
2247                                 BIO_printf(err, "unrecognized purpose\n");
2248                                 *badarg = 1;
2249                                 }
2250                         else
2251                                 {
2252                                 xptmp = X509_PURPOSE_get0(i);
2253                                 purpose = X509_PURPOSE_get_id(xptmp);
2254                                 }
2255                         }
2256                 (*pargs)++;
2257                 }
2258         else if (!strcmp(arg, "-ignore_critical"))
2259                 flags |= X509_V_FLAG_IGNORE_CRITICAL;
2260         else if (!strcmp(arg, "-issuer_checks"))
2261                 flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2262         else if (!strcmp(arg, "-crl_check"))
2263                 flags |=  X509_V_FLAG_CRL_CHECK;
2264         else if (!strcmp(arg, "-crl_check_all"))
2265                 flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
2266         else if (!strcmp(arg, "-policy_check"))
2267                 flags |= X509_V_FLAG_POLICY_CHECK;
2268         else if (!strcmp(arg, "-explicit_policy"))
2269                 flags |= X509_V_FLAG_EXPLICIT_POLICY;
2270         else if (!strcmp(arg, "-x509_strict"))
2271                 flags |= X509_V_FLAG_X509_STRICT;
2272         else if (!strcmp(arg, "-policy_print"))
2273                 flags |= X509_V_FLAG_NOTIFY_POLICY;
2274         else if (!strcmp(arg, "-check_ss_sig"))
2275                 flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2276         else
2277                 return 0;
2278
2279         if (*badarg)
2280                 {
2281                 if (*pm)
2282                         X509_VERIFY_PARAM_free(*pm);
2283                 *pm = NULL;
2284                 goto end;
2285                 }
2286
2287         if (!*pm && !(*pm = X509_VERIFY_PARAM_new()))
2288                 {
2289                 *badarg = 1;
2290                 goto end;
2291                 }
2292
2293         if (otmp)
2294                 X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2295         if (flags)
2296                 X509_VERIFY_PARAM_set_flags(*pm, flags);
2297
2298         if (purpose)
2299                 X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2300
2301         end:
2302
2303         (*pargs)++;
2304
2305         if (pargc)
2306                 *pargc -= *pargs - oldargs;
2307
2308         return 1;
2309
2310         }
2311
2312 static void nodes_print(BIO *out, const char *name,
2313         STACK_OF(X509_POLICY_NODE) *nodes)
2314         {
2315         X509_POLICY_NODE *node;
2316         int i;
2317         BIO_printf(out, "%s Policies:", name);
2318         if (nodes)
2319                 {
2320                 BIO_puts(out, "\n");
2321                 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++)
2322                         {
2323                         node = sk_X509_POLICY_NODE_value(nodes, i);
2324                         X509_POLICY_NODE_print(out, node, 2);
2325                         }
2326                 }
2327         else
2328                 BIO_puts(out, " <empty>\n");
2329         }
2330
2331 void policies_print(BIO *out, X509_STORE_CTX *ctx)
2332         {
2333         X509_POLICY_TREE *tree;
2334         int explicit_policy;
2335         int free_out = 0;
2336         if (out == NULL)
2337                 {
2338                 out = BIO_new_fp(stderr, BIO_NOCLOSE);
2339                 free_out = 1;
2340                 }
2341         tree = X509_STORE_CTX_get0_policy_tree(ctx);
2342         explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2343
2344         BIO_printf(out, "Require explicit Policy: %s\n",
2345                                 explicit_policy ? "True" : "False");
2346
2347         nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2348         nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2349         if (free_out)
2350                 BIO_free(out);
2351         }
2352
2353 #ifndef OPENSSL_NO_JPAKE
2354
2355 static JPAKE_CTX *jpake_init(const char *us, const char *them,
2356                                                          const char *secret)
2357         {
2358         BIGNUM *p = NULL;
2359         BIGNUM *g = NULL;
2360         BIGNUM *q = NULL;
2361         BIGNUM *bnsecret = BN_new();
2362         JPAKE_CTX *ctx;
2363
2364         /* Use a safe prime for p (that we found earlier) */
2365         BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2366         g = BN_new();
2367         BN_set_word(g, 2);
2368         q = BN_new();
2369         BN_rshift1(q, p);
2370
2371         BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2372
2373         ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2374         BN_free(bnsecret);
2375         BN_free(q);
2376         BN_free(g);
2377         BN_free(p);
2378
2379         return ctx;
2380         }
2381
2382 static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2383         {
2384         BN_print(conn, p->gx);
2385         BIO_puts(conn, "\n");
2386         BN_print(conn, p->zkpx.gr);
2387         BIO_puts(conn, "\n");
2388         BN_print(conn, p->zkpx.b);
2389         BIO_puts(conn, "\n");
2390         }
2391
2392 static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2393         {
2394         JPAKE_STEP1 s1;
2395
2396         JPAKE_STEP1_init(&s1);
2397         JPAKE_STEP1_generate(&s1, ctx);
2398         jpake_send_part(bconn, &s1.p1);
2399         jpake_send_part(bconn, &s1.p2);
2400         (void)BIO_flush(bconn);
2401         JPAKE_STEP1_release(&s1);
2402         }
2403
2404 static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2405         {
2406         JPAKE_STEP2 s2;
2407
2408         JPAKE_STEP2_init(&s2);
2409         JPAKE_STEP2_generate(&s2, ctx);
2410         jpake_send_part(bconn, &s2);
2411         (void)BIO_flush(bconn);
2412         JPAKE_STEP2_release(&s2);
2413         }
2414
2415 static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2416         {
2417         JPAKE_STEP3A s3a;
2418
2419         JPAKE_STEP3A_init(&s3a);
2420         JPAKE_STEP3A_generate(&s3a, ctx);
2421         BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2422         (void)BIO_flush(bconn);
2423         JPAKE_STEP3A_release(&s3a);
2424         }
2425
2426 static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2427         {
2428         JPAKE_STEP3B s3b;
2429
2430         JPAKE_STEP3B_init(&s3b);
2431         JPAKE_STEP3B_generate(&s3b, ctx);
2432         BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2433         (void)BIO_flush(bconn);
2434         JPAKE_STEP3B_release(&s3b);
2435         }
2436
2437 static void readbn(BIGNUM **bn, BIO *bconn)
2438         {
2439         char buf[10240];
2440         int l;
2441
2442         l = BIO_gets(bconn, buf, sizeof buf);
2443         assert(l > 0);
2444         assert(buf[l-1] == '\n');
2445         buf[l-1] = '\0';
2446         BN_hex2bn(bn, buf);
2447         }
2448
2449 static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2450         {
2451         readbn(&p->gx, bconn);
2452         readbn(&p->zkpx.gr, bconn);
2453         readbn(&p->zkpx.b, bconn);
2454         }
2455
2456 static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2457         {
2458         JPAKE_STEP1 s1;
2459
2460         JPAKE_STEP1_init(&s1);
2461         jpake_receive_part(&s1.p1, bconn);
2462         jpake_receive_part(&s1.p2, bconn);
2463         if(!JPAKE_STEP1_process(ctx, &s1))
2464                 {
2465                 ERR_print_errors(bio_err);
2466                 exit(1);
2467                 }
2468         JPAKE_STEP1_release(&s1);
2469         }
2470
2471 static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2472         {
2473         JPAKE_STEP2 s2;
2474
2475         JPAKE_STEP2_init(&s2);
2476         jpake_receive_part(&s2, bconn);
2477         if(!JPAKE_STEP2_process(ctx, &s2))
2478                 {
2479                 ERR_print_errors(bio_err);
2480                 exit(1);
2481                 }
2482         JPAKE_STEP2_release(&s2);
2483         }
2484
2485 static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2486         {
2487         JPAKE_STEP3A s3a;
2488         int l;
2489
2490         JPAKE_STEP3A_init(&s3a);
2491         l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2492         assert(l == sizeof s3a.hhk);
2493         if(!JPAKE_STEP3A_process(ctx, &s3a))
2494                 {
2495                 ERR_print_errors(bio_err);
2496                 exit(1);
2497                 }
2498         JPAKE_STEP3A_release(&s3a);
2499         }
2500
2501 static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2502         {
2503         JPAKE_STEP3B s3b;
2504         int l;
2505
2506         JPAKE_STEP3B_init(&s3b);
2507         l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2508         assert(l == sizeof s3b.hk);
2509         if(!JPAKE_STEP3B_process(ctx, &s3b))
2510                 {
2511                 ERR_print_errors(bio_err);
2512                 exit(1);
2513                 }
2514         JPAKE_STEP3B_release(&s3b);
2515         }
2516
2517 void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2518         {
2519         JPAKE_CTX *ctx;
2520         BIO *bconn;
2521
2522         BIO_puts(out, "Authenticating with JPAKE\n");
2523
2524         ctx = jpake_init("client", "server", secret);
2525
2526         bconn = BIO_new(BIO_f_buffer());
2527         BIO_push(bconn, conn);
2528
2529         jpake_send_step1(bconn, ctx);
2530         jpake_receive_step1(ctx, bconn);
2531         jpake_send_step2(bconn, ctx);
2532         jpake_receive_step2(ctx, bconn);
2533         jpake_send_step3a(bconn, ctx);
2534         jpake_receive_step3b(ctx, bconn);
2535
2536         /*
2537          * The problem is that you must use the derived key in the
2538          * session key or you are subject to man-in-the-middle
2539          * attacks.
2540          */
2541         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2542                  " be MitMed. See the version in HEAD for how to do it"
2543                  " properly)\n");
2544
2545         BIO_pop(bconn);
2546         BIO_free(bconn);
2547         }
2548
2549 void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2550         {
2551         JPAKE_CTX *ctx;
2552         BIO *bconn;
2553
2554         BIO_puts(out, "Authenticating with JPAKE\n");
2555
2556         ctx = jpake_init("server", "client", secret);
2557
2558         bconn = BIO_new(BIO_f_buffer());
2559         BIO_push(bconn, conn);
2560
2561         jpake_receive_step1(ctx, bconn);
2562         jpake_send_step1(bconn, ctx);
2563         jpake_receive_step2(ctx, bconn);
2564         jpake_send_step2(bconn, ctx);
2565         jpake_receive_step3a(ctx, bconn);
2566         jpake_send_step3b(bconn, ctx);
2567
2568         /*
2569          * The problem is that you must use the derived key in the
2570          * session key or you are subject to man-in-the-middle
2571          * attacks.
2572          */
2573         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2574                  " be MitMed. See the version in HEAD for how to do it"
2575                  " properly)\n");
2576
2577         BIO_pop(bconn);
2578         BIO_free(bconn);
2579         }
2580
2581 #endif