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 #include <openssl/jpake.h>
 134
 135 #define NON_MAIN
 136 #include "apps.h"
 137 #undef NON_MAIN
 138
 139 typedef struct {
 140         const char *name;
 141         unsigned long flag;
 142         unsigned long mask;
 143 } NAME_EX_TBL;
 144
 145 static UI_METHOD *ui_method = NULL;
 146
 147 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 148 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 149
 150 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 151 /* Looks like this stuff is worth moving into separate function */
 152 static EVP_PKEY *
 153 load_netscape_key(BIO *err, BIO *key, const char *file,
 154                 const char *key_descrip, int format);
 155 #endif
 156
 157 int app_init(long mesgwin);
 158 #ifdef undef /* never finished - probably never will be :-) */
 159 int args_from_file(char *file, int *argc, char **argv[])
 160         {
 161         FILE *fp;
 162         int num,i;
 163         unsigned int len;
 164         static char *buf=NULL;
 165         static char **arg=NULL;
 166         char *p;
 167         struct stat stbuf;
 168
 169         if (stat(file,&stbuf) < 0) return(0);
 170
 171         fp=fopen(file,"r");
 172         if (fp == NULL)
 173                 return(0);
 174
 175         *argc=0;
 176         *argv=NULL;
 177
 178         len=(unsigned int)stbuf.st_size;
 179         if (buf != NULL) OPENSSL_free(buf);
 180         buf=(char *)OPENSSL_malloc(len+1);
 181         if (buf == NULL) return(0);
 182
 183         len=fread(buf,1,len,fp);
 184         if (len <= 1) return(0);
 185         buf[len]='\0';
 186
 187         i=0;
 188         for (p=buf; *p; p++)
 189                 if (*p == '\n') i++;
 190         if (arg != NULL) OPENSSL_free(arg);
 191         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 192
 193         *argv=arg;
 194         num=0;
 195         p=buf;
 196         for (;;)
 197                 {
 198                 if (!*p) break;
 199                 if (*p == '#') /* comment line */
 200                         {
 201                         while (*p && (*p != '\n')) p++;
 202                         continue;
 203                         }
 204                 /* else we have a line */
 205                 *(arg++)=p;
 206                 num++;
 207                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 208                         p++;
 209                 if (!*p) break;
 210                 if (*p == '\n')
 211                         {
 212                         *(p++)='\0';
 213                         continue;
 214                         }
 215                 /* else it is a tab or space */
 216                 p++;
 217                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 218                         p++;
 219                 if (!*p) break;
 220                 if (*p == '\n')
 221                         {
 222                         p++;
 223                         continue;
 224                         }
 225                 *(arg++)=p++;
 226                 num++;
 227                 while (*p && (*p != '\n')) p++;
 228                 if (!*p) break;
 229                 /* else *p == '\n' */
 230                 *(p++)='\0';
 231                 }
 232         *argc=num;
 233         return(1);
 234         }
 235 #endif
 236
 237 int str2fmt(char *s)
 238         {
 239         if      ((*s == 'D') || (*s == 'd'))
 240                 return(FORMAT_ASN1);
 241         else if ((*s == 'T') || (*s == 't'))
 242                 return(FORMAT_TEXT);
 243         else if ((*s == 'P') || (*s == 'p'))
 244                 return(FORMAT_PEM);
 245         else if ((*s == 'N') || (*s == 'n'))
 246                 return(FORMAT_NETSCAPE);
 247         else if ((*s == 'S') || (*s == 's'))
 248                 return(FORMAT_SMIME);
 249         else if ((*s == '1')
 250                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 251                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 252                 return(FORMAT_PKCS12);
 253         else if ((*s == 'E') || (*s == 'e'))
 254                 return(FORMAT_ENGINE);
 255         else
 256                 return(FORMAT_UNDEF);
 257         }
 258
 259 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
 260 void program_name(char *in, char *out, int size)
 261         {
 262         int i,n;
 263         char *p=NULL;
 264
 265         n=strlen(in);
 266         /* find the last '/', '\' or ':' */
 267         for (i=n-1; i>0; i--)
 268                 {
 269                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 270                         {
 271                         p= &(in[i+1]);
 272                         break;
 273                         }
 274                 }
 275         if (p == NULL)
 276                 p=in;
 277         n=strlen(p);
 278
 279 #if defined(OPENSSL_SYS_NETWARE)
 280    /* strip off trailing .nlm if present. */
 281    if ((n > 4) && (p[n-4] == '.') &&
 282       ((p[n-3] == 'n') || (p[n-3] == 'N')) &&
 283       ((p[n-2] == 'l') || (p[n-2] == 'L')) &&
 284       ((p[n-1] == 'm') || (p[n-1] == 'M')))
 285       n-=4;
 286 #else
 287         /* strip off trailing .exe if present. */
 288         if ((n > 4) && (p[n-4] == '.') &&
 289                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 290                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 291                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 292                 n-=4;
 293 #endif
 294
 295         if (n > size-1)
 296                 n=size-1;
 297
 298         for (i=0; i<n; i++)
 299                 {
 300                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 301                         out[i]=p[i]-'A'+'a';
 302                 else
 303                         out[i]=p[i];
 304                 }
 305         out[n]='\0';
 306         }
 307 #else
 308 #ifdef OPENSSL_SYS_VMS
 309 void program_name(char *in, char *out, int size)
 310         {
 311         char *p=in, *q;
 312         char *chars=":]>";
 313
 314         while(*chars != '\0')
 315                 {
 316                 q=strrchr(p,*chars);
 317                 if (q > p)
 318                         p = q + 1;
 319                 chars++;
 320                 }
 321
 322         q=strrchr(p,'.');
 323         if (q == NULL)
 324                 q = p + strlen(p);
 325         strncpy(out,p,size-1);
 326         if (q-p >= size)
 327                 {
 328                 out[size-1]='\0';
 329                 }
 330         else
 331                 {
 332                 out[q-p]='\0';
 333                 }
 334         }
 335 #else
 336 void program_name(char *in, char *out, int size)
 337         {
 338         char *p;
 339
 340         p=strrchr(in,'/');
 341         if (p != NULL)
 342                 p++;
 343         else
 344                 p=in;
 345         BUF_strlcpy(out,p,size);
 346         }
 347 #endif
 348 #endif
 349
 350 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 351         {
 352         int num,len,i;
 353         char *p;
 354
 355         *argc=0;
 356         *argv=NULL;
 357
 358         len=strlen(buf);
 359         i=0;
 360         if (arg->count == 0)
 361                 {
 362                 arg->count=20;
 363                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 364                 }
 365         for (i=0; i<arg->count; i++)
 366                 arg->data[i]=NULL;
 367
 368         num=0;
 369         p=buf;
 370         for (;;)
 371                 {
 372                 /* first scan over white space */
 373                 if (!*p) break;
 374                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 375                         p++;
 376                 if (!*p) break;
 377
 378                 /* The start of something good :-) */
 379                 if (num >= arg->count)
 380                         {
 381                         char **tmp_p;
 382                         int tlen = arg->count + 20;
 383                         tmp_p = (char **)OPENSSL_realloc(arg->data,
 384                                 sizeof(char *)*tlen);
 385                         if (tmp_p == NULL)
 386                                 return 0;
 387                         arg->data  = tmp_p;
 388                         arg->count = tlen;
 389                         /* initialize newly allocated data */
 390                         for (i = num; i < arg->count; i++)
 391                                 arg->data[i] = NULL;
 392                         }
 393                 arg->data[num++]=p;
 394
 395                 /* now look for the end of this */
 396                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 397                         {
 398                         i= *(p++);
 399                         arg->data[num-1]++; /* jump over quote */
 400                         while (*p && (*p != i))
 401                                 p++;
 402                         *p='\0';
 403                         }
 404                 else
 405                         {
 406                         while (*p && ((*p != ' ') &&
 407                                 (*p != '\t') && (*p != '\n')))
 408                                 p++;
 409
 410                         if (*p == '\0')
 411                                 p--;
 412                         else
 413                                 *p='\0';
 414                         }
 415                 p++;
 416                 }
 417         *argc=num;
 418         *argv=arg->data;
 419         return(1);
 420         }
 421
 422 #ifndef APP_INIT
 423 int app_init(long mesgwin)
 424         {
 425         return(1);
 426         }
 427 #endif
 428
 429
 430 int dump_cert_text (BIO *out, X509 *x)
 431 {
 432         char *p;
 433
 434         p=X509_NAME_oneline(X509_get_subject_name(x),NULL,0);
 435         BIO_puts(out,"subject=");
 436         BIO_puts(out,p);
 437         OPENSSL_free(p);
 438
 439         p=X509_NAME_oneline(X509_get_issuer_name(x),NULL,0);
 440         BIO_puts(out,"\nissuer=");
 441         BIO_puts(out,p);
 442         BIO_puts(out,"\n");
 443         OPENSSL_free(p);
 444
 445         return 0;
 446 }
 447
 448 static int ui_open(UI *ui)
 449         {
 450         return UI_method_get_opener(UI_OpenSSL())(ui);
 451         }
 452 static int ui_read(UI *ui, UI_STRING *uis)
 453         {
 454         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 455                 && UI_get0_user_data(ui))
 456                 {
 457                 switch(UI_get_string_type(uis))
 458                         {
 459                 case UIT_PROMPT:
 460                 case UIT_VERIFY:
 461                         {
 462                         const char *password =
 463                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 464                         if (password && password[0] != '\0')
 465                                 {
 466                                 UI_set_result(ui, uis, password);
 467                                 return 1;
 468                                 }
 469                         }
 470                 default:
 471                         break;
 472                         }
 473                 }
 474         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 475         }
 476 static int ui_write(UI *ui, UI_STRING *uis)
 477         {
 478         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 479                 && UI_get0_user_data(ui))
 480                 {
 481                 switch(UI_get_string_type(uis))
 482                         {
 483                 case UIT_PROMPT:
 484                 case UIT_VERIFY:
 485                         {
 486                         const char *password =
 487                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 488                         if (password && password[0] != '\0')
 489                                 return 1;
 490                         }
 491                 default:
 492                         break;
 493                         }
 494                 }
 495         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 496         }
 497 static int ui_close(UI *ui)
 498         {
 499         return UI_method_get_closer(UI_OpenSSL())(ui);
 500         }
 501 int setup_ui_method(void)
 502         {
 503         ui_method = UI_create_method("OpenSSL application user interface");
 504         UI_method_set_opener(ui_method, ui_open);
 505         UI_method_set_reader(ui_method, ui_read);
 506         UI_method_set_writer(ui_method, ui_write);
 507         UI_method_set_closer(ui_method, ui_close);
 508         return 0;
 509         }
 510 void destroy_ui_method(void)
 511         {
 512         if(ui_method)
 513                 {
 514                 UI_destroy_method(ui_method);
 515                 ui_method = NULL;
 516                 }
 517         }
 518 int password_callback(char *buf, int bufsiz, int verify,
 519         PW_CB_DATA *cb_tmp)
 520         {
 521         UI *ui = NULL;
 522         int res = 0;
 523         const char *prompt_info = NULL;
 524         const char *password = NULL;
 525         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 526
 527         if (cb_data)
 528                 {
 529                 if (cb_data->password)
 530                         password = cb_data->password;
 531                 if (cb_data->prompt_info)
 532                         prompt_info = cb_data->prompt_info;
 533                 }
 534
 535         if (password)
 536                 {
 537                 res = strlen(password);
 538                 if (res > bufsiz)
 539                         res = bufsiz;
 540                 memcpy(buf, password, res);
 541                 return res;
 542                 }
 543
 544         ui = UI_new_method(ui_method);
 545         if (ui)
 546                 {
 547                 int ok = 0;
 548                 char *buff = NULL;
 549                 int ui_flags = 0;
 550                 char *prompt = NULL;
 551
 552                 prompt = UI_construct_prompt(ui, "pass phrase",
 553                         prompt_info);
 554
 555                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 556                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 557
 558                 if (ok >= 0)
 559                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
 560                                 PW_MIN_LENGTH,BUFSIZ-1);
 561                 if (ok >= 0 && verify)
 562                         {
 563                         buff = (char *)OPENSSL_malloc(bufsiz);
 564                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
 565                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
 566                         }
 567                 if (ok >= 0)
 568                         do
 569                                 {
 570                                 ok = UI_process(ui);
 571                                 }
 572                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 573
 574                 if (buff)
 575                         {
 576                         OPENSSL_cleanse(buff,(unsigned int)bufsiz);
 577                         OPENSSL_free(buff);
 578                         }
 579
 580                 if (ok >= 0)
 581                         res = strlen(buf);
 582                 if (ok == -1)
 583                         {
 584                         BIO_printf(bio_err, "User interface error\n");
 585                         ERR_print_errors(bio_err);
 586                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 587                         res = 0;
 588                         }
 589                 if (ok == -2)
 590                         {
 591                         BIO_printf(bio_err,"aborted!\n");
 592                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 593                         res = 0;
 594                         }
 595                 UI_free(ui);
 596                 OPENSSL_free(prompt);
 597                 }
 598         return res;
 599         }
 600
 601 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 602
 603 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 604 {
 605         int same;
 606         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 607         else same = 1;
 608         if(arg1) {
 609                 *pass1 = app_get_pass(err, arg1, same);
 610                 if(!*pass1) return 0;
 611         } else if(pass1) *pass1 = NULL;
 612         if(arg2) {
 613                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 614                 if(!*pass2) return 0;
 615         } else if(pass2) *pass2 = NULL;
 616         return 1;
 617 }
 618
 619 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 620 {
 621         char *tmp, tpass[APP_PASS_LEN];
 622         static BIO *pwdbio = NULL;
 623         int i;
 624         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 625         if(!strncmp(arg, "env:", 4)) {
 626                 tmp = getenv(arg + 4);
 627                 if(!tmp) {
 628                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 629                         return NULL;
 630                 }
 631                 return BUF_strdup(tmp);
 632         }
 633         if(!keepbio || !pwdbio) {
 634                 if(!strncmp(arg, "file:", 5)) {
 635                         pwdbio = BIO_new_file(arg + 5, "r");
 636                         if(!pwdbio) {
 637                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 638                                 return NULL;
 639                         }
 640                 } else if(!strncmp(arg, "fd:", 3)) {
 641                         BIO *btmp;
 642                         i = atoi(arg + 3);
 643                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 644                         if((i < 0) || !pwdbio) {
 645                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 646                                 return NULL;
 647                         }
 648                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 649                         btmp = BIO_new(BIO_f_buffer());
 650                         pwdbio = BIO_push(btmp, pwdbio);
 651                 } else if(!strcmp(arg, "stdin")) {
 652                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 653                         if(!pwdbio) {
 654                                 BIO_printf(err, "Can't open BIO for stdin\n");
 655                                 return NULL;
 656                         }
 657                 } else {
 658                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 659                         return NULL;
 660                 }
 661         }
 662         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 663         if(keepbio != 1) {
 664                 BIO_free_all(pwdbio);
 665                 pwdbio = NULL;
 666         }
 667         if(i <= 0) {
 668                 BIO_printf(err, "Error reading password from BIO\n");
 669                 return NULL;
 670         }
 671         tmp = strchr(tpass, '\n');
 672         if(tmp) *tmp = 0;
 673         return BUF_strdup(tpass);
 674 }
 675
 676 int add_oid_section(BIO *err, CONF *conf)
 677 {
 678         char *p;
 679         STACK_OF(CONF_VALUE) *sktmp;
 680         CONF_VALUE *cnf;
 681         int i;
 682         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
 683                 {
 684                 ERR_clear_error();
 685                 return 1;
 686                 }
 687         if(!(sktmp = NCONF_get_section(conf, p))) {
 688                 BIO_printf(err, "problem loading oid section %s\n", p);
 689                 return 0;
 690         }
 691         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 692                 cnf = sk_CONF_VALUE_value(sktmp, i);
 693                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 694                         BIO_printf(err, "problem creating object %s=%s\n",
 695                                                          cnf->name, cnf->value);
 696                         return 0;
 697                 }
 698         }
 699         return 1;
 700 }
 701
 702 static int load_pkcs12(BIO *err, BIO *in, const char *desc,
 703                 pem_password_cb *pem_cb,  void *cb_data,
 704                 EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
 705         {
 706         const char *pass;
 707         char tpass[PEM_BUFSIZE];
 708         int len, ret = 0;
 709         PKCS12 *p12;
 710         p12 = d2i_PKCS12_bio(in, NULL);
 711         if (p12 == NULL)
 712                 {
 713                 BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
 714                 goto die;
 715                 }
 716         /* See if an empty password will do */
 717         if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
 718                 pass = "";
 719         else
 720                 {
 721                 if (!pem_cb)
 722                         pem_cb = (pem_password_cb *)password_callback;
 723                 len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
 724                 if (len < 0)
 725                         {
 726                         BIO_printf(err, "Passpharse callback error for %s\n",
 727                                         desc);
 728                         goto die;
 729                         }
 730                 if (len < PEM_BUFSIZE)
 731                         tpass[len] = 0;
 732                 if (!PKCS12_verify_mac(p12, tpass, len))
 733                         {
 734                         BIO_printf(err,
 735         "Mac verify error (wrong password?) in PKCS12 file for %s\n", desc);
 736                         goto die;
 737                         }
 738                 pass = tpass;
 739                 }
 740         ret = PKCS12_parse(p12, pass, pkey, cert, ca);
 741         die:
 742         if (p12)
 743                 PKCS12_free(p12);
 744         return ret;
 745         }
 746
 747 X509 *load_cert(BIO *err, const char *file, int format,
 748         const char *pass, ENGINE *e, const char *cert_descrip)
 749         {
 750         ASN1_HEADER *ah=NULL;
 751         BUF_MEM *buf=NULL;
 752         X509 *x=NULL;
 753         BIO *cert;
 754
 755         if ((cert=BIO_new(BIO_s_file())) == NULL)
 756                 {
 757                 ERR_print_errors(err);
 758                 goto end;
 759                 }
 760
 761         if (file == NULL)
 762                 {
 763                 setvbuf(stdin, NULL, _IONBF, 0);
 764                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 765                 }
 766         else
 767                 {
 768                 if (BIO_read_filename(cert,file) <= 0)
 769                         {
 770                         BIO_printf(err, "Error opening %s %s\n",
 771                                 cert_descrip, file);
 772                         ERR_print_errors(err);
 773                         goto end;
 774                         }
 775                 }
 776
 777         if      (format == FORMAT_ASN1)
 778                 x=d2i_X509_bio(cert,NULL);
 779         else if (format == FORMAT_NETSCAPE)
 780                 {
 781                 const unsigned char *p,*op;
 782                 int size=0,i;
 783
 784                 /* We sort of have to do it this way because it is sort of nice
 785                  * to read the header first and check it, then
 786                  * try to read the certificate */
 787                 buf=BUF_MEM_new();
 788                 for (;;)
 789                         {
 790                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 791                                 goto end;
 792                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 793                         size+=i;
 794                         if (i == 0) break;
 795                         if (i < 0)
 796                                 {
 797                                 perror("reading certificate");
 798                                 goto end;
 799                                 }
 800                         }
 801                 p=(unsigned char *)buf->data;
 802                 op=p;
 803
 804                 /* First load the header */
 805                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 806                         goto end;
 807                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 808                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 809                         ah->header->length) != 0))
 810                         {
 811                         BIO_printf(err,"Error reading header on certificate\n");
 812                         goto end;
 813                         }
 814                 /* header is ok, so now read the object */
 815                 p=op;
 816                 ah->meth=X509_asn1_meth();
 817                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 818                         goto end;
 819                 x=(X509 *)ah->data;
 820                 ah->data=NULL;
 821                 }
 822         else if (format == FORMAT_PEM)
 823                 x=PEM_read_bio_X509_AUX(cert,NULL,
 824                         (pem_password_cb *)password_callback, NULL);
 825         else if (format == FORMAT_PKCS12)
 826                 {
 827                 if (!load_pkcs12(err, cert,cert_descrip, NULL, NULL,
 828                                         NULL, &x, NULL))
 829                         goto end;
 830                 }
 831         else    {
 832                 BIO_printf(err,"bad input format specified for %s\n",
 833                         cert_descrip);
 834                 goto end;
 835                 }
 836 end:
 837         if (x == NULL)
 838                 {
 839                 BIO_printf(err,"unable to load certificate\n");
 840                 ERR_print_errors(err);
 841                 }
 842         if (ah != NULL) ASN1_HEADER_free(ah);
 843         if (cert != NULL) BIO_free(cert);
 844         if (buf != NULL) BUF_MEM_free(buf);
 845         return(x);
 846         }
 847
 848 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
 849         const char *pass, ENGINE *e, const char *key_descrip)
 850         {
 851         BIO *key=NULL;
 852         EVP_PKEY *pkey=NULL;
 853         PW_CB_DATA cb_data;
 854
 855         cb_data.password = pass;
 856         cb_data.prompt_info = file;
 857
 858         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 859                 {
 860                 BIO_printf(err,"no keyfile specified\n");
 861                 goto end;
 862                 }
 863 #ifndef OPENSSL_NO_ENGINE
 864         if (format == FORMAT_ENGINE)
 865                 {
 866                 if (!e)
 867                         BIO_printf(bio_err,"no engine specified\n");
 868                 else
 869                         pkey = ENGINE_load_private_key(e, file,
 870                                 ui_method, &cb_data);
 871                 goto end;
 872                 }
 873 #endif
 874         key=BIO_new(BIO_s_file());
 875         if (key == NULL)
 876                 {
 877                 ERR_print_errors(err);
 878                 goto end;
 879                 }
 880         if (file == NULL && maybe_stdin)
 881                 {
 882                 setvbuf(stdin, NULL, _IONBF, 0);
 883                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 884                 }
 885         else
 886                 if (BIO_read_filename(key,file) <= 0)
 887                         {
 888                         BIO_printf(err, "Error opening %s %s\n",
 889                                 key_descrip, file);
 890                         ERR_print_errors(err);
 891                         goto end;
 892                         }
 893         if (format == FORMAT_ASN1)
 894                 {
 895                 pkey=d2i_PrivateKey_bio(key, NULL);
 896                 }
 897         else if (format == FORMAT_PEM)
 898                 {
 899                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 900                         (pem_password_cb *)password_callback, &cb_data);
 901                 }
 902 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 903         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 904                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 905 #endif
 906         else if (format == FORMAT_PKCS12)
 907                 {
 908                 if (!load_pkcs12(err, key, key_descrip,
 909                                 (pem_password_cb *)password_callback, &cb_data,
 910                                 &pkey, NULL, NULL))
 911                         goto end;
 912                 }
 913         else
 914                 {
 915                 BIO_printf(err,"bad input format specified for key file\n");
 916                 goto end;
 917                 }
 918  end:
 919         if (key != NULL) BIO_free(key);
 920         if (pkey == NULL)
 921                 BIO_printf(err,"unable to load %s\n", key_descrip);
 922         return(pkey);
 923         }
 924
 925 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
 926         const char *pass, ENGINE *e, const char *key_descrip)
 927         {
 928         BIO *key=NULL;
 929         EVP_PKEY *pkey=NULL;
 930         PW_CB_DATA cb_data;
 931
 932         cb_data.password = pass;
 933         cb_data.prompt_info = file;
 934
 935         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 936                 {
 937                 BIO_printf(err,"no keyfile specified\n");
 938                 goto end;
 939                 }
 940 #ifndef OPENSSL_NO_ENGINE
 941         if (format == FORMAT_ENGINE)
 942                 {
 943                 if (!e)
 944                         BIO_printf(bio_err,"no engine specified\n");
 945                 else
 946                         pkey = ENGINE_load_public_key(e, file,
 947                                 ui_method, &cb_data);
 948                 goto end;
 949                 }
 950 #endif
 951         key=BIO_new(BIO_s_file());
 952         if (key == NULL)
 953                 {
 954                 ERR_print_errors(err);
 955                 goto end;
 956                 }
 957         if (file == NULL && maybe_stdin)
 958                 {
 959                 setvbuf(stdin, NULL, _IONBF, 0);
 960                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 961                 }
 962         else
 963                 if (BIO_read_filename(key,file) <= 0)
 964                         {
 965                         BIO_printf(err, "Error opening %s %s\n",
 966                                 key_descrip, file);
 967                         ERR_print_errors(err);
 968                         goto end;
 969                 }
 970         if (format == FORMAT_ASN1)
 971                 {
 972                 pkey=d2i_PUBKEY_bio(key, NULL);
 973                 }
 974         else if (format == FORMAT_PEM)
 975                 {
 976                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 977                         (pem_password_cb *)password_callback, &cb_data);
 978                 }
 979 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 980         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 981                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 982 #endif
 983         else
 984                 {
 985                 BIO_printf(err,"bad input format specified for key file\n");
 986                 goto end;
 987                 }
 988  end:
 989         if (key != NULL) BIO_free(key);
 990         if (pkey == NULL)
 991                 BIO_printf(err,"unable to load %s\n", key_descrip);
 992         return(pkey);
 993         }
 994
 995 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 996 static EVP_PKEY *
 997 load_netscape_key(BIO *err, BIO *key, const char *file,
 998                 const char *key_descrip, int format)
 999         {
1000         EVP_PKEY *pkey;
1001         BUF_MEM *buf;
1002         RSA     *rsa;
1003         const unsigned char *p;
1004         int size, i;
1005
1006         buf=BUF_MEM_new();
1007         pkey = EVP_PKEY_new();
1008         size = 0;
1009         if (buf == NULL || pkey == NULL)
1010                 goto error;
1011         for (;;)
1012                 {
1013                 if (!BUF_MEM_grow_clean(buf,size+1024*10))
1014                         goto error;
1015                 i = BIO_read(key, &(buf->data[size]), 1024*10);
1016                 size += i;
1017                 if (i == 0)
1018                         break;
1019                 if (i < 0)
1020                         {
1021                                 BIO_printf(err, "Error reading %s %s",
1022                                         key_descrip, file);
1023                                 goto error;
1024                         }
1025                 }
1026         p=(unsigned char *)buf->data;
1027         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
1028                 (format == FORMAT_IISSGC ? 1 : 0));
1029         if (rsa == NULL)
1030                 goto error;
1031         BUF_MEM_free(buf);
1032         EVP_PKEY_set1_RSA(pkey, rsa);
1033         return pkey;
1034 error:
1035         BUF_MEM_free(buf);
1036         EVP_PKEY_free(pkey);
1037         return NULL;
1038         }
1039 #endif /* ndef OPENSSL_NO_RC4 */
1040
1041 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1042         const char *pass, ENGINE *e, const char *cert_descrip)
1043         {
1044         BIO *certs;
1045         int i;
1046         STACK_OF(X509) *othercerts = NULL;
1047         STACK_OF(X509_INFO) *allcerts = NULL;
1048         X509_INFO *xi;
1049         PW_CB_DATA cb_data;
1050
1051         cb_data.password = pass;
1052         cb_data.prompt_info = file;
1053
1054         if((certs = BIO_new(BIO_s_file())) == NULL)
1055                 {
1056                 ERR_print_errors(err);
1057                 goto end;
1058                 }
1059
1060         if (file == NULL)
1061                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
1062         else
1063                 {
1064                 if (BIO_read_filename(certs,file) <= 0)
1065                         {
1066                         BIO_printf(err, "Error opening %s %s\n",
1067                                 cert_descrip, file);
1068                         ERR_print_errors(err);
1069                         goto end;
1070                         }
1071                 }
1072
1073         if      (format == FORMAT_PEM)
1074                 {
1075                 othercerts = sk_X509_new_null();
1076                 if(!othercerts)
1077                         {
1078                         sk_X509_free(othercerts);
1079                         othercerts = NULL;
1080                         goto end;
1081                         }
1082                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1083                                 (pem_password_cb *)password_callback, &cb_data);
1084                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1085                         {
1086                         xi = sk_X509_INFO_value (allcerts, i);
1087                         if (xi->x509)
1088                                 {
1089                                 sk_X509_push(othercerts, xi->x509);
1090                                 xi->x509 = NULL;
1091                                 }
1092                         }
1093                 goto end;
1094                 }
1095         else    {
1096                 BIO_printf(err,"bad input format specified for %s\n",
1097                         cert_descrip);
1098                 goto end;
1099                 }
1100 end:
1101         if (othercerts == NULL)
1102                 {
1103                 BIO_printf(err,"unable to load certificates\n");
1104                 ERR_print_errors(err);
1105                 }
1106         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1107         if (certs != NULL) BIO_free(certs);
1108         return(othercerts);
1109         }
1110
1111
1112 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1113 /* Return error for unknown extensions */
1114 #define X509V3_EXT_DEFAULT              0
1115 /* Print error for unknown extensions */
1116 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1117 /* ASN1 parse unknown extensions */
1118 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1119 /* BIO_dump unknown extensions */
1120 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1121
1122 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1123                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1124
1125 int set_cert_ex(unsigned long *flags, const char *arg)
1126 {
1127         static const NAME_EX_TBL cert_tbl[] = {
1128                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1129                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1130                 { "no_header", X509_FLAG_NO_HEADER, 0},
1131                 { "no_version", X509_FLAG_NO_VERSION, 0},
1132                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1133                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1134                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1135                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1136                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1137                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1138                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1139                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1140                 { "no_aux", X509_FLAG_NO_AUX, 0},
1141                 { "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1142                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1143                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1144                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1145                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1146                 { NULL, 0, 0}
1147         };
1148         return set_multi_opts(flags, arg, cert_tbl);
1149 }
1150
1151 int set_name_ex(unsigned long *flags, const char *arg)
1152 {
1153         static const NAME_EX_TBL ex_tbl[] = {
1154                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1155                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1156                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1157                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1158                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1159                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1160                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1161                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1162                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1163                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1164                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1165                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1166                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1167                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1168                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1169                 { "dn_rev", XN_FLAG_DN_REV, 0},
1170                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1171                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1172                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1173                 { "align", XN_FLAG_FN_ALIGN, 0},
1174                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1175                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1176                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1177                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1178                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1179                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1180                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1181                 { NULL, 0, 0}
1182         };
1183         return set_multi_opts(flags, arg, ex_tbl);
1184 }
1185
1186 int set_ext_copy(int *copy_type, const char *arg)
1187 {
1188         if (!strcasecmp(arg, "none"))
1189                 *copy_type = EXT_COPY_NONE;
1190         else if (!strcasecmp(arg, "copy"))
1191                 *copy_type = EXT_COPY_ADD;
1192         else if (!strcasecmp(arg, "copyall"))
1193                 *copy_type = EXT_COPY_ALL;
1194         else
1195                 return 0;
1196         return 1;
1197 }
1198
1199 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1200 {
1201         STACK_OF(X509_EXTENSION) *exts = NULL;
1202         X509_EXTENSION *ext, *tmpext;
1203         ASN1_OBJECT *obj;
1204         int i, idx, ret = 0;
1205         if (!x || !req || (copy_type == EXT_COPY_NONE))
1206                 return 1;
1207         exts = X509_REQ_get_extensions(req);
1208
1209         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1210                 ext = sk_X509_EXTENSION_value(exts, i);
1211                 obj = X509_EXTENSION_get_object(ext);
1212                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1213                 /* Does extension exist? */
1214                 if (idx != -1) {
1215                         /* If normal copy don't override existing extension */
1216                         if (copy_type == EXT_COPY_ADD)
1217                                 continue;
1218                         /* Delete all extensions of same type */
1219                         do {
1220                                 tmpext = X509_get_ext(x, idx);
1221                                 X509_delete_ext(x, idx);
1222                                 X509_EXTENSION_free(tmpext);
1223                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1224                         } while (idx != -1);
1225                 }
1226                 if (!X509_add_ext(x, ext, -1))
1227                         goto end;
1228         }
1229
1230         ret = 1;
1231
1232         end:
1233
1234         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1235
1236         return ret;
1237 }
1238
1239
1240
1241
1242 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1243 {
1244         STACK_OF(CONF_VALUE) *vals;
1245         CONF_VALUE *val;
1246         int i, ret = 1;
1247         if(!arg) return 0;
1248         vals = X509V3_parse_list(arg);
1249         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1250                 val = sk_CONF_VALUE_value(vals, i);
1251                 if (!set_table_opts(flags, val->name, in_tbl))
1252                         ret = 0;
1253         }
1254         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1255         return ret;
1256 }
1257
1258 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1259 {
1260         char c;
1261         const NAME_EX_TBL *ptbl;
1262         c = arg[0];
1263
1264         if(c == '-') {
1265                 c = 0;
1266                 arg++;
1267         } else if (c == '+') {
1268                 c = 1;
1269                 arg++;
1270         } else c = 1;
1271
1272         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1273                 if(!strcasecmp(arg, ptbl->name)) {
1274                         *flags &= ~ptbl->mask;
1275                         if(c) *flags |= ptbl->flag;
1276                         else *flags &= ~ptbl->flag;
1277                         return 1;
1278                 }
1279         }
1280         return 0;
1281 }
1282
1283 void print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)
1284 {
1285         char *buf;
1286         char mline = 0;
1287         int indent = 0;
1288
1289         if(title) BIO_puts(out, title);
1290         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1291                 mline = 1;
1292                 indent = 4;
1293         }
1294         if(lflags == XN_FLAG_COMPAT) {
1295                 buf = X509_NAME_oneline(nm, 0, 0);
1296                 BIO_puts(out, buf);
1297                 BIO_puts(out, "\n");
1298                 OPENSSL_free(buf);
1299         } else {
1300                 if(mline) BIO_puts(out, "\n");
1301                 X509_NAME_print_ex(out, nm, indent, lflags);
1302                 BIO_puts(out, "\n");
1303         }
1304 }
1305
1306 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1307 {
1308         X509_STORE *store;
1309         X509_LOOKUP *lookup;
1310         if(!(store = X509_STORE_new())) goto end;
1311         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1312         if (lookup == NULL) goto end;
1313         if (CAfile) {
1314                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1315                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1316                         goto end;
1317                 }
1318         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1319
1320         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1321         if (lookup == NULL) goto end;
1322         if (CApath) {
1323                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1324                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1325                         goto end;
1326                 }
1327         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1328
1329         ERR_clear_error();
1330         return store;
1331         end:
1332         X509_STORE_free(store);
1333         return NULL;
1334 }
1335
1336 #ifndef OPENSSL_NO_ENGINE
1337 /* Try to load an engine in a shareable library */
1338 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1339         {
1340         ENGINE *e = ENGINE_by_id("dynamic");
1341         if (e)
1342                 {
1343                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1344                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1345                         {
1346                         ENGINE_free(e);
1347                         e = NULL;
1348                         }
1349                 }
1350         return e;
1351         }
1352
1353 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1354         {
1355         ENGINE *e = NULL;
1356
1357         if (engine)
1358                 {
1359                 if(strcmp(engine, "auto") == 0)
1360                         {
1361                         BIO_printf(err,"enabling auto ENGINE support\n");
1362                         ENGINE_register_all_complete();
1363                         return NULL;
1364                         }
1365                 if((e = ENGINE_by_id(engine)) == NULL
1366                         && (e = try_load_engine(err, engine, debug)) == NULL)
1367                         {
1368                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1369                         ERR_print_errors(err);
1370                         return NULL;
1371                         }
1372                 if (debug)
1373                         {
1374                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1375                                 0, err, 0);
1376                         }
1377                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1378                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1379                         {
1380                         BIO_printf(err,"can't use that engine\n");
1381                         ERR_print_errors(err);
1382                         ENGINE_free(e);
1383                         return NULL;
1384                         }
1385
1386                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1387
1388                 /* Free our "structural" reference. */
1389                 ENGINE_free(e);
1390                 }
1391         return e;
1392         }
1393 #endif
1394
1395 int load_config(BIO *err, CONF *cnf)
1396         {
1397         if (!cnf)
1398                 cnf = config;
1399         if (!cnf)
1400                 return 1;
1401
1402         OPENSSL_load_builtin_modules();
1403
1404         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1405                 {
1406                 BIO_printf(err, "Error configuring OpenSSL\n");
1407                 ERR_print_errors(err);
1408                 return 0;
1409                 }
1410         return 1;
1411         }
1412
1413 char *make_config_name()
1414         {
1415         const char *t=X509_get_default_cert_area();
1416         size_t len;
1417         char *p;
1418
1419         len=strlen(t)+strlen(OPENSSL_CONF)+2;
1420         p=OPENSSL_malloc(len);
1421         BUF_strlcpy(p,t,len);
1422 #ifndef OPENSSL_SYS_VMS
1423         BUF_strlcat(p,"/",len);
1424 #endif
1425         BUF_strlcat(p,OPENSSL_CONF,len);
1426
1427         return p;
1428         }
1429
1430 static unsigned long index_serial_hash(const char **a)
1431         {
1432         const char *n;
1433
1434         n=a[DB_serial];
1435         while (*n == '0') n++;
1436         return(lh_strhash(n));
1437         }
1438
1439 static int index_serial_cmp(const char **a, const char **b)
1440         {
1441         const char *aa,*bb;
1442
1443         for (aa=a[DB_serial]; *aa == '0'; aa++);
1444         for (bb=b[DB_serial]; *bb == '0'; bb++);
1445         return(strcmp(aa,bb));
1446         }
1447
1448 static int index_name_qual(char **a)
1449         { return(a[0][0] == 'V'); }
1450
1451 static unsigned long index_name_hash(const char **a)
1452         { return(lh_strhash(a[DB_name])); }
1453
1454 int index_name_cmp(const char **a, const char **b)
1455         { return(strcmp(a[DB_name],
1456              b[DB_name])); }
1457
1458 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash,const char **)
1459 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp,const char **)
1460 static IMPLEMENT_LHASH_HASH_FN(index_name_hash,const char **)
1461 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp,const char **)
1462
1463 #undef BSIZE
1464 #define BSIZE 256
1465
1466 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1467         {
1468         BIO *in=NULL;
1469         BIGNUM *ret=NULL;
1470         MS_STATIC char buf[1024];
1471         ASN1_INTEGER *ai=NULL;
1472
1473         ai=ASN1_INTEGER_new();
1474         if (ai == NULL) goto err;
1475
1476         if ((in=BIO_new(BIO_s_file())) == NULL)
1477                 {
1478                 ERR_print_errors(bio_err);
1479                 goto err;
1480                 }
1481
1482         if (BIO_read_filename(in,serialfile) <= 0)
1483                 {
1484                 if (!create)
1485                         {
1486                         perror(serialfile);
1487                         goto err;
1488                         }
1489                 else
1490                         {
1491                         ret=BN_new();
1492                         if (ret == NULL || !rand_serial(ret, ai))
1493                                 BIO_printf(bio_err, "Out of memory\n");
1494                         }
1495                 }
1496         else
1497                 {
1498                 if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
1499                         {
1500                         BIO_printf(bio_err,"unable to load number from %s\n",
1501                                 serialfile);
1502                         goto err;
1503                         }
1504                 ret=ASN1_INTEGER_to_BN(ai,NULL);
1505                 if (ret == NULL)
1506                         {
1507                         BIO_printf(bio_err,"error converting number from bin to BIGNUM\n");
1508                         goto err;
1509                         }
1510                 }
1511
1512         if (ret && retai)
1513                 {
1514                 *retai = ai;
1515                 ai = NULL;
1516                 }
1517  err:
1518         if (in != NULL) BIO_free(in);
1519         if (ai != NULL) ASN1_INTEGER_free(ai);
1520         return(ret);
1521         }
1522
1523 int save_serial(char *serialfile, char *suffix, BIGNUM *serial, ASN1_INTEGER **retai)
1524         {
1525         char buf[1][BSIZE];
1526         BIO *out = NULL;
1527         int ret=0;
1528         ASN1_INTEGER *ai=NULL;
1529         int j;
1530
1531         if (suffix == NULL)
1532                 j = strlen(serialfile);
1533         else
1534                 j = strlen(serialfile) + strlen(suffix) + 1;
1535         if (j >= BSIZE)
1536                 {
1537                 BIO_printf(bio_err,"file name too long\n");
1538                 goto err;
1539                 }
1540
1541         if (suffix == NULL)
1542                 BUF_strlcpy(buf[0], serialfile, BSIZE);
1543         else
1544                 {
1545 #ifndef OPENSSL_SYS_VMS
1546                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1547 #else
1548                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1549 #endif
1550                 }
1551 #ifdef RL_DEBUG
1552         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1553 #endif
1554         out=BIO_new(BIO_s_file());
1555         if (out == NULL)
1556                 {
1557                 ERR_print_errors(bio_err);
1558                 goto err;
1559                 }
1560         if (BIO_write_filename(out,buf[0]) <= 0)
1561                 {
1562                 perror(serialfile);
1563                 goto err;
1564                 }
1565
1566         if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)
1567                 {
1568                 BIO_printf(bio_err,"error converting serial to ASN.1 format\n");
1569                 goto err;
1570                 }
1571         i2a_ASN1_INTEGER(out,ai);
1572         BIO_puts(out,"\n");
1573         ret=1;
1574         if (retai)
1575                 {
1576                 *retai = ai;
1577                 ai = NULL;
1578                 }
1579 err:
1580         if (out != NULL) BIO_free_all(out);
1581         if (ai != NULL) ASN1_INTEGER_free(ai);
1582         return(ret);
1583         }
1584
1585 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1586         {
1587         char buf[5][BSIZE];
1588         int i,j;
1589         struct stat sb;
1590
1591         i = strlen(serialfile) + strlen(old_suffix);
1592         j = strlen(serialfile) + strlen(new_suffix);
1593         if (i > j) j = i;
1594         if (j + 1 >= BSIZE)
1595                 {
1596                 BIO_printf(bio_err,"file name too long\n");
1597                 goto err;
1598                 }
1599
1600 #ifndef OPENSSL_SYS_VMS
1601         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1602                 serialfile, new_suffix);
1603 #else
1604         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1605                 serialfile, new_suffix);
1606 #endif
1607 #ifndef OPENSSL_SYS_VMS
1608         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1609                 serialfile, old_suffix);
1610 #else
1611         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1612                 serialfile, old_suffix);
1613 #endif
1614         if (stat(serialfile,&sb) < 0)
1615                 {
1616                 if (errno != ENOENT
1617 #ifdef ENOTDIR
1618                         && errno != ENOTDIR
1619 #endif
1620                    )
1621                         goto err;
1622                 }
1623         else
1624                 {
1625 #ifdef RL_DEBUG
1626                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1627                         serialfile, buf[1]);
1628 #endif
1629                 if (rename(serialfile,buf[1]) < 0)
1630                         {
1631                         BIO_printf(bio_err,
1632                                 "unable to rename %s to %s\n",
1633                                 serialfile, buf[1]);
1634                         perror("reason");
1635                         goto err;
1636                         }
1637                 }
1638 #ifdef RL_DEBUG
1639         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1640                 buf[0],serialfile);
1641 #endif
1642         if (rename(buf[0],serialfile) < 0)
1643                 {
1644                 BIO_printf(bio_err,
1645                         "unable to rename %s to %s\n",
1646                         buf[0],serialfile);
1647                 perror("reason");
1648                 rename(buf[1],serialfile);
1649                 goto err;
1650                 }
1651         return 1;
1652  err:
1653         return 0;
1654         }
1655
1656 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1657         {
1658         BIGNUM *btmp;
1659         int ret = 0;
1660         if (b)
1661                 btmp = b;
1662         else
1663                 btmp = BN_new();
1664
1665         if (!btmp)
1666                 return 0;
1667
1668         if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1669                 goto error;
1670         if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1671                 goto error;
1672
1673         ret = 1;
1674
1675         error:
1676
1677         if (!b)
1678                 BN_free(btmp);
1679
1680         return ret;
1681         }
1682
1683 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1684         {
1685         CA_DB *retdb = NULL;
1686         TXT_DB *tmpdb = NULL;
1687         BIO *in = BIO_new(BIO_s_file());
1688         CONF *dbattr_conf = NULL;
1689         char buf[1][BSIZE];
1690         long errorline= -1;
1691
1692         if (in == NULL)
1693                 {
1694                 ERR_print_errors(bio_err);
1695                 goto err;
1696                 }
1697         if (BIO_read_filename(in,dbfile) <= 0)
1698                 {
1699                 perror(dbfile);
1700                 BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
1701                 goto err;
1702                 }
1703         if ((tmpdb = TXT_DB_read(in,DB_NUMBER)) == NULL)
1704                 {
1705                 if (tmpdb != NULL) TXT_DB_free(tmpdb);
1706                 goto err;
1707                 }
1708
1709 #ifndef OPENSSL_SYS_VMS
1710         BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1711 #else
1712         BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1713 #endif
1714         dbattr_conf = NCONF_new(NULL);
1715         if (NCONF_load(dbattr_conf,buf[0],&errorline) <= 0)
1716                 {
1717                 if (errorline > 0)
1718                         {
1719                         BIO_printf(bio_err,
1720                                 "error on line %ld of db attribute file '%s'\n"
1721                                 ,errorline,buf[0]);
1722                         goto err;
1723                         }
1724                 else
1725                         {
1726                         NCONF_free(dbattr_conf);
1727                         dbattr_conf = NULL;
1728                         }
1729                 }
1730
1731         if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL)
1732                 {
1733                 fprintf(stderr, "Out of memory\n");
1734                 goto err;
1735                 }
1736
1737         retdb->db = tmpdb;
1738         tmpdb = NULL;
1739         if (db_attr)
1740                 retdb->attributes = *db_attr;
1741         else
1742                 {
1743                 retdb->attributes.unique_subject = 1;
1744                 }
1745
1746         if (dbattr_conf)
1747                 {
1748                 char *p = NCONF_get_string(dbattr_conf,NULL,"unique_subject");
1749                 if (p)
1750                         {
1751 #ifdef RL_DEBUG
1752                         BIO_printf(bio_err, "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1753 #endif
1754                         retdb->attributes.unique_subject = parse_yesno(p,1);
1755                         }
1756                 }
1757
1758  err:
1759         if (dbattr_conf) NCONF_free(dbattr_conf);
1760         if (tmpdb) TXT_DB_free(tmpdb);
1761         if (in) BIO_free_all(in);
1762         return retdb;
1763         }
1764
1765 int index_index(CA_DB *db)
1766         {
1767         if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1768                                 LHASH_HASH_FN(index_serial_hash),
1769                                 LHASH_COMP_FN(index_serial_cmp)))
1770                 {
1771                 BIO_printf(bio_err,
1772                   "error creating serial number index:(%ld,%ld,%ld)\n",
1773                                         db->db->error,db->db->arg1,db->db->arg2);
1774                         return 0;
1775                 }
1776
1777         if (db->attributes.unique_subject
1778                 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1779                         LHASH_HASH_FN(index_name_hash),
1780                         LHASH_COMP_FN(index_name_cmp)))
1781                 {
1782                 BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",
1783                         db->db->error,db->db->arg1,db->db->arg2);
1784                 return 0;
1785                 }
1786         return 1;
1787         }
1788
1789 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1790         {
1791         char buf[3][BSIZE];
1792         BIO *out = BIO_new(BIO_s_file());
1793         int j;
1794
1795         if (out == NULL)
1796                 {
1797                 ERR_print_errors(bio_err);
1798                 goto err;
1799                 }
1800
1801         j = strlen(dbfile) + strlen(suffix);
1802         if (j + 6 >= BSIZE)
1803                 {
1804                 BIO_printf(bio_err,"file name too long\n");
1805                 goto err;
1806                 }
1807
1808 #ifndef OPENSSL_SYS_VMS
1809         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1810 #else
1811         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1812 #endif
1813 #ifndef OPENSSL_SYS_VMS
1814         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1815 #else
1816         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1817 #endif
1818 #ifndef OPENSSL_SYS_VMS
1819         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1820 #else
1821         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1822 #endif
1823 #ifdef RL_DEBUG
1824         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1825 #endif
1826         if (BIO_write_filename(out,buf[0]) <= 0)
1827                 {
1828                 perror(dbfile);
1829                 BIO_printf(bio_err,"unable to open '%s'\n", dbfile);
1830                 goto err;
1831                 }
1832         j=TXT_DB_write(out,db->db);
1833         if (j <= 0) goto err;
1834
1835         BIO_free(out);
1836
1837         out = BIO_new(BIO_s_file());
1838 #ifdef RL_DEBUG
1839         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1840 #endif
1841         if (BIO_write_filename(out,buf[1]) <= 0)
1842                 {
1843                 perror(buf[2]);
1844                 BIO_printf(bio_err,"unable to open '%s'\n", buf[2]);
1845                 goto err;
1846                 }
1847         BIO_printf(out,"unique_subject = %s\n",
1848                 db->attributes.unique_subject ? "yes" : "no");
1849         BIO_free(out);
1850
1851         return 1;
1852  err:
1853         return 0;
1854         }
1855
1856 int rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)
1857         {
1858         char buf[5][BSIZE];
1859         int i,j;
1860         struct stat sb;
1861
1862         i = strlen(dbfile) + strlen(old_suffix);
1863         j = strlen(dbfile) + strlen(new_suffix);
1864         if (i > j) j = i;
1865         if (j + 6 >= BSIZE)
1866                 {
1867                 BIO_printf(bio_err,"file name too long\n");
1868                 goto err;
1869                 }
1870
1871 #ifndef OPENSSL_SYS_VMS
1872         j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1873 #else
1874         j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1875 #endif
1876 #ifndef OPENSSL_SYS_VMS
1877         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s",
1878                 dbfile, new_suffix);
1879 #else
1880         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s",
1881                 dbfile, new_suffix);
1882 #endif
1883 #ifndef OPENSSL_SYS_VMS
1884         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1885                 dbfile, new_suffix);
1886 #else
1887         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1888                 dbfile, new_suffix);
1889 #endif
1890 #ifndef OPENSSL_SYS_VMS
1891         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1892                 dbfile, old_suffix);
1893 #else
1894         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1895                 dbfile, old_suffix);
1896 #endif
1897 #ifndef OPENSSL_SYS_VMS
1898         j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s",
1899                 dbfile, old_suffix);
1900 #else
1901         j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s",
1902                 dbfile, old_suffix);
1903 #endif
1904         if (stat(dbfile,&sb) < 0)
1905                 {
1906                 if (errno != ENOENT
1907 #ifdef ENOTDIR
1908                         && errno != ENOTDIR
1909 #endif
1910                    )
1911                         goto err;
1912                 }
1913         else
1914                 {
1915 #ifdef RL_DEBUG
1916                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1917                         dbfile, buf[1]);
1918 #endif
1919                 if (rename(dbfile,buf[1]) < 0)
1920                         {
1921                         BIO_printf(bio_err,
1922                                 "unable to rename %s to %s\n",
1923                                 dbfile, buf[1]);
1924                         perror("reason");
1925                         goto err;
1926                         }
1927                 }
1928 #ifdef RL_DEBUG
1929         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1930                 buf[0],dbfile);
1931 #endif
1932         if (rename(buf[0],dbfile) < 0)
1933                 {
1934                 BIO_printf(bio_err,
1935                         "unable to rename %s to %s\n",
1936                         buf[0],dbfile);
1937                 perror("reason");
1938                 rename(buf[1],dbfile);
1939                 goto err;
1940                 }
1941         if (stat(buf[4],&sb) < 0)
1942                 {
1943                 if (errno != ENOENT
1944 #ifdef ENOTDIR
1945                         && errno != ENOTDIR
1946 #endif
1947                    )
1948                         goto err;
1949                 }
1950         else
1951                 {
1952 #ifdef RL_DEBUG
1953                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1954                         buf[4],buf[3]);
1955 #endif
1956                 if (rename(buf[4],buf[3]) < 0)
1957                         {
1958                         BIO_printf(bio_err,
1959                                 "unable to rename %s to %s\n",
1960                                 buf[4], buf[3]);
1961                         perror("reason");
1962                         rename(dbfile,buf[0]);
1963                         rename(buf[1],dbfile);
1964                         goto err;
1965                         }
1966                 }
1967 #ifdef RL_DEBUG
1968         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1969                 buf[2],buf[4]);
1970 #endif
1971         if (rename(buf[2],buf[4]) < 0)
1972                 {
1973                 BIO_printf(bio_err,
1974                         "unable to rename %s to %s\n",
1975                         buf[2],buf[4]);
1976                 perror("reason");
1977                 rename(buf[3],buf[4]);
1978                 rename(dbfile,buf[0]);
1979                 rename(buf[1],dbfile);
1980                 goto err;
1981                 }
1982         return 1;
1983  err:
1984         return 0;
1985         }
1986
1987 void free_index(CA_DB *db)
1988         {
1989         if (db)
1990                 {
1991                 if (db->db) TXT_DB_free(db->db);
1992                 OPENSSL_free(db);
1993                 }
1994         }
1995
1996 int parse_yesno(const char *str, int def)
1997         {
1998         int ret = def;
1999         if (str)
2000                 {
2001                 switch (*str)
2002                         {
2003                 case 'f': /* false */
2004                 case 'F': /* FALSE */
2005                 case 'n': /* no */
2006                 case 'N': /* NO */
2007                 case '0': /* 0 */
2008                         ret = 0;
2009                         break;
2010                 case 't': /* true */
2011                 case 'T': /* TRUE */
2012                 case 'y': /* yes */
2013                 case 'Y': /* YES */
2014                 case '1': /* 1 */
2015                         ret = 1;
2016                         break;
2017                 default:
2018                         ret = def;
2019                         break;
2020                         }
2021                 }
2022         return ret;
2023         }
2024
2025 /*
2026  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2027  * where characters may be escaped by \
2028  */
2029 X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2030         {
2031         size_t buflen = strlen(subject)+1; /* to copy the types and values into. due to escaping, the copy can only become shorter */
2032         char *buf = OPENSSL_malloc(buflen);
2033         size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2034         char **ne_types = OPENSSL_malloc(max_ne * sizeof (char *));
2035         char **ne_values = OPENSSL_malloc(max_ne * sizeof (char *));
2036         int *mval = OPENSSL_malloc (max_ne * sizeof (int));
2037
2038         char *sp = subject, *bp = buf;
2039         int i, ne_num = 0;
2040
2041         X509_NAME *n = NULL;
2042         int nid;
2043
2044         if (!buf || !ne_types || !ne_values)
2045                 {
2046                 BIO_printf(bio_err, "malloc error\n");
2047                 goto error;
2048                 }
2049
2050         if (*subject != '/')
2051                 {
2052                 BIO_printf(bio_err, "Subject does not start with '/'.\n");
2053                 goto error;
2054                 }
2055         sp++; /* skip leading / */
2056
2057         /* no multivalued RDN by default */
2058         mval[ne_num] = 0;
2059
2060         while (*sp)
2061                 {
2062                 /* collect type */
2063                 ne_types[ne_num] = bp;
2064                 while (*sp)
2065                         {
2066                         if (*sp == '\\') /* is there anything to escape in the type...? */
2067                                 {
2068                                 if (*++sp)
2069                                         *bp++ = *sp++;
2070                                 else
2071                                         {
2072                                         BIO_printf(bio_err, "escape character at end of string\n");
2073                                         goto error;
2074                                         }
2075                                 }
2076                         else if (*sp == '=')
2077                                 {
2078                                 sp++;
2079                                 *bp++ = '\0';
2080                                 break;
2081                                 }
2082                         else
2083                                 *bp++ = *sp++;
2084                         }
2085                 if (!*sp)
2086                         {
2087                         BIO_printf(bio_err, "end of string encountered while processing type of subject name element #%d\n", ne_num);
2088                         goto error;
2089                         }
2090                 ne_values[ne_num] = bp;
2091                 while (*sp)
2092                         {
2093                         if (*sp == '\\')
2094                                 {
2095                                 if (*++sp)
2096                                         *bp++ = *sp++;
2097                                 else
2098                                         {
2099                                         BIO_printf(bio_err, "escape character at end of string\n");
2100                                         goto error;
2101                                         }
2102                                 }
2103                         else if (*sp == '/')
2104                                 {
2105                                 sp++;
2106                                 /* no multivalued RDN by default */
2107                                 mval[ne_num+1] = 0;
2108                                 break;
2109                                 }
2110                         else if (*sp == '+' && multirdn)
2111                                 {
2112                                 /* a not escaped + signals a mutlivalued RDN */
2113                                 sp++;
2114                                 mval[ne_num+1] = -1;
2115                                 break;
2116                                 }
2117                         else
2118                                 *bp++ = *sp++;
2119                         }
2120                 *bp++ = '\0';
2121                 ne_num++;
2122                 }
2123
2124         if (!(n = X509_NAME_new()))
2125                 goto error;
2126
2127         for (i = 0; i < ne_num; i++)
2128                 {
2129                 if ((nid=OBJ_txt2nid(ne_types[i])) == NID_undef)
2130                         {
2131                         BIO_printf(bio_err, "Subject Attribute %s has no known NID, skipped\n", ne_types[i]);
2132                         continue;
2133                         }
2134
2135                 if (!*ne_values[i])
2136                         {
2137                         BIO_printf(bio_err, "No value provided for Subject Attribute %s, skipped\n", ne_types[i]);
2138                         continue;
2139                         }
2140
2141                 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char*)ne_values[i], -1,-1,mval[i]))
2142                         goto error;
2143                 }
2144
2145         OPENSSL_free(ne_values);
2146         OPENSSL_free(ne_types);
2147         OPENSSL_free(buf);
2148         return n;
2149
2150 error:
2151         X509_NAME_free(n);
2152         if (ne_values)
2153                 OPENSSL_free(ne_values);
2154         if (ne_types)
2155                 OPENSSL_free(ne_types);
2156         if (buf)
2157                 OPENSSL_free(buf);
2158         return NULL;
2159 }
2160
2161 /* This code MUST COME AFTER anything that uses rename() */
2162 #ifdef OPENSSL_SYS_WIN32
2163 int WIN32_rename(const char *from, const char *to)
2164         {
2165 #ifndef OPENSSL_SYS_WINCE
2166         /* Windows rename gives an error if 'to' exists, so delete it
2167          * first and ignore file not found errror
2168          */
2169         if((remove(to) != 0) && (errno != ENOENT))
2170                 return -1;
2171 #undef rename
2172         return rename(from, to);
2173 #else
2174         /* convert strings to UNICODE */
2175         {
2176         BOOL result = FALSE;
2177         WCHAR* wfrom;
2178         WCHAR* wto;
2179         int i;
2180         wfrom = malloc((strlen(from)+1)*2);
2181         wto = malloc((strlen(to)+1)*2);
2182         if (wfrom != NULL && wto != NULL)
2183                 {
2184                 for (i=0; i<(int)strlen(from)+1; i++)
2185                         wfrom[i] = (short)from[i];
2186                 for (i=0; i<(int)strlen(to)+1; i++)
2187                         wto[i] = (short)to[i];
2188                 result = MoveFile(wfrom, wto);
2189                 }
2190         if (wfrom != NULL)
2191                 free(wfrom);
2192         if (wto != NULL)
2193                 free(wto);
2194         return result;
2195         }
2196 #endif
2197         }
2198 #endif
2199
2200 int args_verify(char ***pargs, int *pargc,
2201                         int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2202         {
2203         ASN1_OBJECT *otmp = NULL;
2204         unsigned long flags = 0;
2205         int i;
2206         int purpose = 0;
2207         char **oldargs = *pargs;
2208         char *arg = **pargs, *argn = (*pargs)[1];
2209         if (!strcmp(arg, "-policy"))
2210                 {
2211                 if (!argn)
2212                         *badarg = 1;
2213                 else
2214                         {
2215                         otmp = OBJ_txt2obj(argn, 0);
2216                         if (!otmp)
2217                                 {
2218                                 BIO_printf(err, "Invalid Policy \"%s\"\n",
2219                                                                         argn);
2220                                 *badarg = 1;
2221                                 }
2222                         }
2223                 (*pargs)++;
2224                 }
2225         else if (strcmp(arg,"-purpose") == 0)
2226                 {
2227                 X509_PURPOSE *xptmp;
2228                 if (!argn)
2229                         *badarg = 1;
2230                 else
2231                         {
2232                         i = X509_PURPOSE_get_by_sname(argn);
2233                         if(i < 0)
2234                                 {
2235                                 BIO_printf(err, "unrecognized purpose\n");
2236                                 *badarg = 1;
2237                                 }
2238                         else
2239                                 {
2240                                 xptmp = X509_PURPOSE_get0(i);
2241                                 purpose = X509_PURPOSE_get_id(xptmp);
2242                                 }
2243                         }
2244                 (*pargs)++;
2245                 }
2246         else if (!strcmp(arg, "-ignore_critical"))
2247                 flags |= X509_V_FLAG_IGNORE_CRITICAL;
2248         else if (!strcmp(arg, "-issuer_checks"))
2249                 flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2250         else if (!strcmp(arg, "-crl_check"))
2251                 flags |=  X509_V_FLAG_CRL_CHECK;
2252         else if (!strcmp(arg, "-crl_check_all"))
2253                 flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
2254         else if (!strcmp(arg, "-policy_check"))
2255                 flags |= X509_V_FLAG_POLICY_CHECK;
2256         else if (!strcmp(arg, "-explicit_policy"))
2257                 flags |= X509_V_FLAG_EXPLICIT_POLICY;
2258         else if (!strcmp(arg, "-x509_strict"))
2259                 flags |= X509_V_FLAG_X509_STRICT;
2260         else if (!strcmp(arg, "-policy_print"))
2261                 flags |= X509_V_FLAG_NOTIFY_POLICY;
2262         else
2263                 return 0;
2264
2265         if (*badarg)
2266                 {
2267                 if (*pm)
2268                         X509_VERIFY_PARAM_free(*pm);
2269                 *pm = NULL;
2270                 goto end;
2271                 }
2272
2273         if (!*pm && !(*pm = X509_VERIFY_PARAM_new()))
2274                 {
2275                 *badarg = 1;
2276                 goto end;
2277                 }
2278
2279         if (otmp)
2280                 X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2281         if (flags)
2282                 X509_VERIFY_PARAM_set_flags(*pm, flags);
2283
2284         if (purpose)
2285                 X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2286
2287         end:
2288
2289         (*pargs)++;
2290
2291         if (pargc)
2292                 *pargc -= *pargs - oldargs;
2293
2294         return 1;
2295
2296         }
2297
2298 static void nodes_print(BIO *out, const char *name,
2299         STACK_OF(X509_POLICY_NODE) *nodes)
2300         {
2301         X509_POLICY_NODE *node;
2302         int i;
2303         BIO_printf(out, "%s Policies:", name);
2304         if (nodes)
2305                 {
2306                 BIO_puts(out, "\n");
2307                 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++)
2308                         {
2309                         node = sk_X509_POLICY_NODE_value(nodes, i);
2310                         X509_POLICY_NODE_print(out, node, 2);
2311                         }
2312                 }
2313         else
2314                 BIO_puts(out, " <empty>\n");
2315         }
2316
2317 void policies_print(BIO *out, X509_STORE_CTX *ctx)
2318         {
2319         X509_POLICY_TREE *tree;
2320         int explicit_policy;
2321         int free_out = 0;
2322         if (out == NULL)
2323                 {
2324                 out = BIO_new_fp(stderr, BIO_NOCLOSE);
2325                 free_out = 1;
2326                 }
2327         tree = X509_STORE_CTX_get0_policy_tree(ctx);
2328         explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2329
2330         BIO_printf(out, "Require explicit Policy: %s\n",
2331                                 explicit_policy ? "True" : "False");
2332
2333         nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2334         nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2335         if (free_out)
2336                 BIO_free(out);
2337         }
2338
2339 static JPAKE_CTX *jpake_init(const char *us, const char *them,
2340                                                          const char *secret)
2341         {
2342         BIGNUM *p = NULL;
2343         BIGNUM *g = NULL;
2344         BIGNUM *q = NULL;
2345         BIGNUM *bnsecret = BN_new();
2346         JPAKE_CTX *ctx;
2347
2348         /* Use a safe prime for p (that we found earlier) */
2349         BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2350         g = BN_new();
2351         BN_set_word(g, 2);
2352         q = BN_new();
2353         BN_rshift1(q, p);
2354
2355         BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2356
2357         ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2358         BN_free(bnsecret);
2359         BN_free(q);
2360         BN_free(g);
2361         BN_free(p);
2362
2363         return ctx;
2364         }
2365
2366 static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2367         {
2368         BN_print(conn, p->gx);
2369         BIO_puts(conn, "\n");
2370         BN_print(conn, p->zkpx.gr);
2371         BIO_puts(conn, "\n");
2372         BN_print(conn, p->zkpx.b);
2373         BIO_puts(conn, "\n");
2374         }
2375
2376 static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2377         {
2378         JPAKE_STEP1 s1;
2379
2380         JPAKE_STEP1_init(&s1);
2381         JPAKE_STEP1_generate(&s1, ctx);
2382         jpake_send_part(bconn, &s1.p1);
2383         jpake_send_part(bconn, &s1.p2);
2384         BIO_flush(bconn);
2385         JPAKE_STEP1_release(&s1);
2386         }
2387
2388 static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2389         {
2390         JPAKE_STEP2 s2;
2391
2392         JPAKE_STEP2_init(&s2);
2393         JPAKE_STEP2_generate(&s2, ctx);
2394         jpake_send_part(bconn, &s2);
2395         BIO_flush(bconn);
2396         JPAKE_STEP2_release(&s2);
2397         }
2398
2399 static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2400         {
2401         JPAKE_STEP3A s3a;
2402
2403         JPAKE_STEP3A_init(&s3a);
2404         JPAKE_STEP3A_generate(&s3a, ctx);
2405         BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2406         BIO_flush(bconn);
2407         JPAKE_STEP3A_release(&s3a);
2408         }
2409
2410 static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2411         {
2412         JPAKE_STEP3B s3b;
2413
2414         JPAKE_STEP3B_init(&s3b);
2415         JPAKE_STEP3B_generate(&s3b, ctx);
2416         BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2417         BIO_flush(bconn);
2418         JPAKE_STEP3B_release(&s3b);
2419         }
2420
2421 static void readbn(BIGNUM **bn, BIO *bconn)
2422         {
2423         char buf[10240];
2424         int l;
2425
2426         l = BIO_gets(bconn, buf, sizeof buf);
2427         assert(l >= 0);
2428         assert(buf[l-1] == '\n');
2429         buf[l-1] = '\0';
2430         BN_hex2bn(bn, buf);
2431         }
2432
2433 static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2434         {
2435         readbn(&p->gx, bconn);
2436         readbn(&p->zkpx.gr, bconn);
2437         readbn(&p->zkpx.b, bconn);
2438         }
2439
2440 static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2441         {
2442         JPAKE_STEP1 s1;
2443
2444         JPAKE_STEP1_init(&s1);
2445         jpake_receive_part(&s1.p1, bconn);
2446         jpake_receive_part(&s1.p2, bconn);
2447         if(!JPAKE_STEP1_process(ctx, &s1))
2448                 {
2449                 ERR_print_errors(bio_err);
2450                 exit(1);
2451                 }
2452         JPAKE_STEP1_release(&s1);
2453         }
2454
2455 static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2456         {
2457         JPAKE_STEP2 s2;
2458
2459         JPAKE_STEP2_init(&s2);
2460         jpake_receive_part(&s2, bconn);
2461         if(!JPAKE_STEP2_process(ctx, &s2))
2462                 {
2463                 ERR_print_errors(bio_err);
2464                 exit(1);
2465                 }
2466         JPAKE_STEP2_release(&s2);
2467         }
2468
2469 static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2470         {
2471         JPAKE_STEP3A s3a;
2472         int l;
2473
2474         JPAKE_STEP3A_init(&s3a);
2475         l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2476         assert(l == sizeof s3a.hhk);
2477         if(!JPAKE_STEP3A_process(ctx, &s3a))
2478                 {
2479                 ERR_print_errors(bio_err);
2480                 exit(1);
2481                 }
2482         JPAKE_STEP3A_release(&s3a);
2483         }
2484
2485 static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2486         {
2487         JPAKE_STEP3B s3b;
2488         int l;
2489
2490         JPAKE_STEP3B_init(&s3b);
2491         l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2492         assert(l == sizeof s3b.hk);
2493         if(!JPAKE_STEP3B_process(ctx, &s3b))
2494                 {
2495                 ERR_print_errors(bio_err);
2496                 exit(1);
2497                 }
2498         JPAKE_STEP3B_release(&s3b);
2499         }
2500
2501 void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2502         {
2503         JPAKE_CTX *ctx;
2504         BIO *bconn;
2505
2506         BIO_puts(out, "Authenticating with JPAKE\n");
2507
2508         ctx = jpake_init("client", "server", secret);
2509
2510         bconn = BIO_new(BIO_f_buffer());
2511         BIO_push(bconn, conn);
2512
2513         jpake_send_step1(bconn, ctx);
2514         jpake_receive_step1(ctx, bconn);
2515         jpake_send_step2(bconn, ctx);
2516         jpake_receive_step2(ctx, bconn);
2517         jpake_send_step3a(bconn, ctx);
2518         jpake_receive_step3b(ctx, bconn);
2519
2520         BIO_puts(out, "JPAKE authentication succeeded\n");
2521
2522         BIO_pop(bconn);
2523         BIO_free(bconn);
2524         }
2525
2526 void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2527         {
2528         JPAKE_CTX *ctx;
2529         BIO *bconn;
2530
2531         BIO_puts(out, "Authenticating with JPAKE\n");
2532
2533         ctx = jpake_init("server", "client", secret);
2534
2535         bconn = BIO_new(BIO_f_buffer());
2536         BIO_push(bconn, conn);
2537
2538         jpake_receive_step1(ctx, bconn);
2539         jpake_send_step1(bconn, ctx);
2540         jpake_receive_step2(ctx, bconn);
2541         jpake_send_step2(bconn, ctx);
2542         jpake_receive_step3a(ctx, bconn);
2543         jpake_send_step3b(bconn, ctx);
2544
2545         BIO_puts(out, "JPAKE authentication succeeded\n");
2546
2547         BIO_pop(bconn);
2548         BIO_free(bconn);
2549         }