crypto/openssl/apps/apps.c

   1 /* apps/apps.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <stdio.h>
 113 #include <stdlib.h>
 114 #include <string.h>
 115 #include <sys/types.h>
 116 #include <sys/stat.h>
 117 #include <ctype.h>
 118 #include <assert.h>
 119 #include <openssl/err.h>
 120 #include <openssl/x509.h>
 121 #include <openssl/x509v3.h>
 122 #include <openssl/pem.h>
 123 #include <openssl/pkcs12.h>
 124 #include <openssl/ui.h>
 125 #include <openssl/safestack.h>
 126 #ifndef OPENSSL_NO_ENGINE
 127 #include <openssl/engine.h>
 128 #endif
 129 #ifndef OPENSSL_NO_RSA
 130 #include <openssl/rsa.h>
 131 #endif
 132 #include <openssl/bn.h>
 133 #ifndef OPENSSL_NO_JPAKE
 134 #include <openssl/jpake.h>
 135 #endif
 136
 137 #define NON_MAIN
 138 #include "apps.h"
 139 #undef NON_MAIN
 140
 141 typedef struct {
 142         const char *name;
 143         unsigned long flag;
 144         unsigned long mask;
 145 } NAME_EX_TBL;
 146
 147 static UI_METHOD *ui_method = NULL;
 148
 149 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 150 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 151
 152 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 153 /* Looks like this stuff is worth moving into separate function */
 154 static EVP_PKEY *
 155 load_netscape_key(BIO *err, BIO *key, const char *file,
 156                 const char *key_descrip, int format);
 157 #endif
 158
 159 int app_init(long mesgwin);
 160 #ifdef undef /* never finished - probably never will be :-) */
 161 int args_from_file(char *file, int *argc, char **argv[])
 162         {
 163         FILE *fp;
 164         int num,i;
 165         unsigned int len;
 166         static char *buf=NULL;
 167         static char **arg=NULL;
 168         char *p;
 169         struct stat stbuf;
 170
 171         if (stat(file,&stbuf) < 0) return(0);
 172
 173         fp=fopen(file,"r");
 174         if (fp == NULL)
 175                 return(0);
 176
 177         *argc=0;
 178         *argv=NULL;
 179
 180         len=(unsigned int)stbuf.st_size;
 181         if (buf != NULL) OPENSSL_free(buf);
 182         buf=(char *)OPENSSL_malloc(len+1);
 183         if (buf == NULL) return(0);
 184
 185         len=fread(buf,1,len,fp);
 186         if (len <= 1) return(0);
 187         buf[len]='\0';
 188
 189         i=0;
 190         for (p=buf; *p; p++)
 191                 if (*p == '\n') i++;
 192         if (arg != NULL) OPENSSL_free(arg);
 193         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 194
 195         *argv=arg;
 196         num=0;
 197         p=buf;
 198         for (;;)
 199                 {
 200                 if (!*p) break;
 201                 if (*p == '#') /* comment line */
 202                         {
 203                         while (*p && (*p != '\n')) p++;
 204                         continue;
 205                         }
 206                 /* else we have a line */
 207                 *(arg++)=p;
 208                 num++;
 209                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 210                         p++;
 211                 if (!*p) break;
 212                 if (*p == '\n')
 213                         {
 214                         *(p++)='\0';
 215                         continue;
 216                         }
 217                 /* else it is a tab or space */
 218                 p++;
 219                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 220                         p++;
 221                 if (!*p) break;
 222                 if (*p == '\n')
 223                         {
 224                         p++;
 225                         continue;
 226                         }
 227                 *(arg++)=p++;
 228                 num++;
 229                 while (*p && (*p != '\n')) p++;
 230                 if (!*p) break;
 231                 /* else *p == '\n' */
 232                 *(p++)='\0';
 233                 }
 234         *argc=num;
 235         return(1);
 236         }
 237 #endif
 238
 239 int str2fmt(char *s)
 240         {
 241         if      ((*s == 'D') || (*s == 'd'))
 242                 return(FORMAT_ASN1);
 243         else if ((*s == 'T') || (*s == 't'))
 244                 return(FORMAT_TEXT);
 245         else if ((*s == 'P') || (*s == 'p'))
 246                 return(FORMAT_PEM);
 247         else if ((*s == 'N') || (*s == 'n'))
 248                 return(FORMAT_NETSCAPE);
 249         else if ((*s == 'S') || (*s == 's'))
 250                 return(FORMAT_SMIME);
 251         else if ((*s == '1')
 252                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 253                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 254                 return(FORMAT_PKCS12);
 255         else if ((*s == 'E') || (*s == 'e'))
 256                 return(FORMAT_ENGINE);
 257         else
 258                 return(FORMAT_UNDEF);
 259         }
 260
 261 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
 262 void program_name(char *in, char *out, int size)
 263         {
 264         int i,n;
 265         char *p=NULL;
 266
 267         n=strlen(in);
 268         /* find the last '/', '\' or ':' */
 269         for (i=n-1; i>0; i--)
 270                 {
 271                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 272                         {
 273                         p= &(in[i+1]);
 274                         break;
 275                         }
 276                 }
 277         if (p == NULL)
 278                 p=in;
 279         n=strlen(p);
 280
 281 #if defined(OPENSSL_SYS_NETWARE)
 282    /* strip off trailing .nlm if present. */
 283    if ((n > 4) && (p[n-4] == '.') &&
 284       ((p[n-3] == 'n') || (p[n-3] == 'N')) &&
 285       ((p[n-2] == 'l') || (p[n-2] == 'L')) &&
 286       ((p[n-1] == 'm') || (p[n-1] == 'M')))
 287       n-=4;
 288 #else
 289         /* strip off trailing .exe if present. */
 290         if ((n > 4) && (p[n-4] == '.') &&
 291                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 292                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 293                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 294                 n-=4;
 295 #endif
 296
 297         if (n > size-1)
 298                 n=size-1;
 299
 300         for (i=0; i<n; i++)
 301                 {
 302                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 303                         out[i]=p[i]-'A'+'a';
 304                 else
 305                         out[i]=p[i];
 306                 }
 307         out[n]='\0';
 308         }
 309 #else
 310 #ifdef OPENSSL_SYS_VMS
 311 void program_name(char *in, char *out, int size)
 312         {
 313         char *p=in, *q;
 314         char *chars=":]>";
 315
 316         while(*chars != '\0')
 317                 {
 318                 q=strrchr(p,*chars);
 319                 if (q > p)
 320                         p = q + 1;
 321                 chars++;
 322                 }
 323
 324         q=strrchr(p,'.');
 325         if (q == NULL)
 326                 q = p + strlen(p);
 327         strncpy(out,p,size-1);
 328         if (q-p >= size)
 329                 {
 330                 out[size-1]='\0';
 331                 }
 332         else
 333                 {
 334                 out[q-p]='\0';
 335                 }
 336         }
 337 #else
 338 void program_name(char *in, char *out, int size)
 339         {
 340         char *p;
 341
 342         p=strrchr(in,'/');
 343         if (p != NULL)
 344                 p++;
 345         else
 346                 p=in;
 347         BUF_strlcpy(out,p,size);
 348         }
 349 #endif
 350 #endif
 351
 352 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 353         {
 354         int num,i;
 355         char *p;
 356
 357         *argc=0;
 358         *argv=NULL;
 359
 360         i=0;
 361         if (arg->count == 0)
 362                 {
 363                 arg->count=20;
 364                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 365                 if (arg->data == NULL)
 366                         return 0;
 367                 }
 368         for (i=0; i<arg->count; i++)
 369                 arg->data[i]=NULL;
 370
 371         num=0;
 372         p=buf;
 373         for (;;)
 374                 {
 375                 /* first scan over white space */
 376                 if (!*p) break;
 377                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 378                         p++;
 379                 if (!*p) break;
 380
 381                 /* The start of something good :-) */
 382                 if (num >= arg->count)
 383                         {
 384                         char **tmp_p;
 385                         int tlen = arg->count + 20;
 386                         tmp_p = (char **)OPENSSL_realloc(arg->data,
 387                                 sizeof(char *)*tlen);
 388                         if (tmp_p == NULL)
 389                                 return 0;
 390                         arg->data  = tmp_p;
 391                         arg->count = tlen;
 392                         /* initialize newly allocated data */
 393                         for (i = num; i < arg->count; i++)
 394                                 arg->data[i] = NULL;
 395                         }
 396                 arg->data[num++]=p;
 397
 398                 /* now look for the end of this */
 399                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 400                         {
 401                         i= *(p++);
 402                         arg->data[num-1]++; /* jump over quote */
 403                         while (*p && (*p != i))
 404                                 p++;
 405                         *p='\0';
 406                         }
 407                 else
 408                         {
 409                         while (*p && ((*p != ' ') &&
 410                                 (*p != '\t') && (*p != '\n')))
 411                                 p++;
 412
 413                         if (*p == '\0')
 414                                 p--;
 415                         else
 416                                 *p='\0';
 417                         }
 418                 p++;
 419                 }
 420         *argc=num;
 421         *argv=arg->data;
 422         return(1);
 423         }
 424
 425 #ifndef APP_INIT
 426 int app_init(long mesgwin)
 427         {
 428         return(1);
 429         }
 430 #endif
 431
 432
 433 int dump_cert_text (BIO *out, X509 *x)
 434 {
 435         char *p;
 436
 437         p=X509_NAME_oneline(X509_get_subject_name(x),NULL,0);
 438         BIO_puts(out,"subject=");
 439         BIO_puts(out,p);
 440         OPENSSL_free(p);
 441
 442         p=X509_NAME_oneline(X509_get_issuer_name(x),NULL,0);
 443         BIO_puts(out,"\nissuer=");
 444         BIO_puts(out,p);
 445         BIO_puts(out,"\n");
 446         OPENSSL_free(p);
 447
 448         return 0;
 449 }
 450
 451 static int ui_open(UI *ui)
 452         {
 453         return UI_method_get_opener(UI_OpenSSL())(ui);
 454         }
 455 static int ui_read(UI *ui, UI_STRING *uis)
 456         {
 457         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 458                 && UI_get0_user_data(ui))
 459                 {
 460                 switch(UI_get_string_type(uis))
 461                         {
 462                 case UIT_PROMPT:
 463                 case UIT_VERIFY:
 464                         {
 465                         const char *password =
 466                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 467                         if (password && password[0] != '\0')
 468                                 {
 469                                 UI_set_result(ui, uis, password);
 470                                 return 1;
 471                                 }
 472                         }
 473                 default:
 474                         break;
 475                         }
 476                 }
 477         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 478         }
 479 static int ui_write(UI *ui, UI_STRING *uis)
 480         {
 481         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 482                 && UI_get0_user_data(ui))
 483                 {
 484                 switch(UI_get_string_type(uis))
 485                         {
 486                 case UIT_PROMPT:
 487                 case UIT_VERIFY:
 488                         {
 489                         const char *password =
 490                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 491                         if (password && password[0] != '\0')
 492                                 return 1;
 493                         }
 494                 default:
 495                         break;
 496                         }
 497                 }
 498         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 499         }
 500 static int ui_close(UI *ui)
 501         {
 502         return UI_method_get_closer(UI_OpenSSL())(ui);
 503         }
 504 int setup_ui_method(void)
 505         {
 506         ui_method = UI_create_method("OpenSSL application user interface");
 507         UI_method_set_opener(ui_method, ui_open);
 508         UI_method_set_reader(ui_method, ui_read);
 509         UI_method_set_writer(ui_method, ui_write);
 510         UI_method_set_closer(ui_method, ui_close);
 511         return 0;
 512         }
 513 void destroy_ui_method(void)
 514         {
 515         if(ui_method)
 516                 {
 517                 UI_destroy_method(ui_method);
 518                 ui_method = NULL;
 519                 }
 520         }
 521 int password_callback(char *buf, int bufsiz, int verify,
 522         PW_CB_DATA *cb_tmp)
 523         {
 524         UI *ui = NULL;
 525         int res = 0;
 526         const char *prompt_info = NULL;
 527         const char *password = NULL;
 528         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 529
 530         if (cb_data)
 531                 {
 532                 if (cb_data->password)
 533                         password = cb_data->password;
 534                 if (cb_data->prompt_info)
 535                         prompt_info = cb_data->prompt_info;
 536                 }
 537
 538         if (password)
 539                 {
 540                 res = strlen(password);
 541                 if (res > bufsiz)
 542                         res = bufsiz;
 543                 memcpy(buf, password, res);
 544                 return res;
 545                 }
 546
 547         ui = UI_new_method(ui_method);
 548         if (ui)
 549                 {
 550                 int ok = 0;
 551                 char *buff = NULL;
 552                 int ui_flags = 0;
 553                 char *prompt = NULL;
 554
 555                 prompt = UI_construct_prompt(ui, "pass phrase",
 556                         prompt_info);
 557
 558                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 559                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 560
 561                 if (ok >= 0)
 562                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
 563                                 PW_MIN_LENGTH,bufsiz-1);
 564                 if (ok >= 0 && verify)
 565                         {
 566                         buff = (char *)OPENSSL_malloc(bufsiz);
 567                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
 568                                 PW_MIN_LENGTH,bufsiz-1, buf);
 569                         }
 570                 if (ok >= 0)
 571                         do
 572                                 {
 573                                 ok = UI_process(ui);
 574                                 }
 575                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 576
 577                 if (buff)
 578                         {
 579                         OPENSSL_cleanse(buff,(unsigned int)bufsiz);
 580                         OPENSSL_free(buff);
 581                         }
 582
 583                 if (ok >= 0)
 584                         res = strlen(buf);
 585                 if (ok == -1)
 586                         {
 587                         BIO_printf(bio_err, "User interface error\n");
 588                         ERR_print_errors(bio_err);
 589                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 590                         res = 0;
 591                         }
 592                 if (ok == -2)
 593                         {
 594                         BIO_printf(bio_err,"aborted!\n");
 595                         OPENSSL_cleanse(buf,(unsigned int)bufsiz);
 596                         res = 0;
 597                         }
 598                 UI_free(ui);
 599                 OPENSSL_free(prompt);
 600                 }
 601         return res;
 602         }
 603
 604 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 605
 606 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 607 {
 608         int same;
 609         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 610         else same = 1;
 611         if(arg1) {
 612                 *pass1 = app_get_pass(err, arg1, same);
 613                 if(!*pass1) return 0;
 614         } else if(pass1) *pass1 = NULL;
 615         if(arg2) {
 616                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 617                 if(!*pass2) return 0;
 618         } else if(pass2) *pass2 = NULL;
 619         return 1;
 620 }
 621
 622 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 623 {
 624         char *tmp, tpass[APP_PASS_LEN];
 625         static BIO *pwdbio = NULL;
 626         int i;
 627         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 628         if(!strncmp(arg, "env:", 4)) {
 629                 tmp = getenv(arg + 4);
 630                 if(!tmp) {
 631                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 632                         return NULL;
 633                 }
 634                 return BUF_strdup(tmp);
 635         }
 636         if(!keepbio || !pwdbio) {
 637                 if(!strncmp(arg, "file:", 5)) {
 638                         pwdbio = BIO_new_file(arg + 5, "r");
 639                         if(!pwdbio) {
 640                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 641                                 return NULL;
 642                         }
 643                 } else if(!strncmp(arg, "fd:", 3)) {
 644                         BIO *btmp;
 645                         i = atoi(arg + 3);
 646                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 647                         if((i < 0) || !pwdbio) {
 648                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 649                                 return NULL;
 650                         }
 651                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 652                         btmp = BIO_new(BIO_f_buffer());
 653                         pwdbio = BIO_push(btmp, pwdbio);
 654                 } else if(!strcmp(arg, "stdin")) {
 655                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 656                         if(!pwdbio) {
 657                                 BIO_printf(err, "Can't open BIO for stdin\n");
 658                                 return NULL;
 659                         }
 660                 } else {
 661                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 662                         return NULL;
 663                 }
 664         }
 665         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 666         if(keepbio != 1) {
 667                 BIO_free_all(pwdbio);
 668                 pwdbio = NULL;
 669         }
 670         if(i <= 0) {
 671                 BIO_printf(err, "Error reading password from BIO\n");
 672                 return NULL;
 673         }
 674         tmp = strchr(tpass, '\n');
 675         if(tmp) *tmp = 0;
 676         return BUF_strdup(tpass);
 677 }
 678
 679 int add_oid_section(BIO *err, CONF *conf)
 680 {
 681         char *p;
 682         STACK_OF(CONF_VALUE) *sktmp;
 683         CONF_VALUE *cnf;
 684         int i;
 685         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
 686                 {
 687                 ERR_clear_error();
 688                 return 1;
 689                 }
 690         if(!(sktmp = NCONF_get_section(conf, p))) {
 691                 BIO_printf(err, "problem loading oid section %s\n", p);
 692                 return 0;
 693         }
 694         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 695                 cnf = sk_CONF_VALUE_value(sktmp, i);
 696                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 697                         BIO_printf(err, "problem creating object %s=%s\n",
 698                                                          cnf->name, cnf->value);
 699                         return 0;
 700                 }
 701         }
 702         return 1;
 703 }
 704
 705 static int load_pkcs12(BIO *err, BIO *in, const char *desc,
 706                 pem_password_cb *pem_cb,  void *cb_data,
 707                 EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
 708         {
 709         const char *pass;
 710         char tpass[PEM_BUFSIZE];
 711         int len, ret = 0;
 712         PKCS12 *p12;
 713         p12 = d2i_PKCS12_bio(in, NULL);
 714         if (p12 == NULL)
 715                 {
 716                 BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
 717                 goto die;
 718                 }
 719         /* See if an empty password will do */
 720         if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
 721                 pass = "";
 722         else
 723                 {
 724                 if (!pem_cb)
 725                         pem_cb = (pem_password_cb *)password_callback;
 726                 len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
 727                 if (len < 0)
 728                         {
 729                         BIO_printf(err, "Passpharse callback error for %s\n",
 730                                         desc);
 731                         goto die;
 732                         }
 733                 if (len < PEM_BUFSIZE)
 734                         tpass[len] = 0;
 735                 if (!PKCS12_verify_mac(p12, tpass, len))
 736                         {
 737                         BIO_printf(err,
 738         "Mac verify error (wrong password?) in PKCS12 file for %s\n", desc);
 739                         goto die;
 740                         }
 741                 pass = tpass;
 742                 }
 743         ret = PKCS12_parse(p12, pass, pkey, cert, ca);
 744         die:
 745         if (p12)
 746                 PKCS12_free(p12);
 747         return ret;
 748         }
 749
 750 X509 *load_cert(BIO *err, const char *file, int format,
 751         const char *pass, ENGINE *e, const char *cert_descrip)
 752         {
 753         ASN1_HEADER *ah=NULL;
 754         BUF_MEM *buf=NULL;
 755         X509 *x=NULL;
 756         BIO *cert;
 757
 758         if ((cert=BIO_new(BIO_s_file())) == NULL)
 759                 {
 760                 ERR_print_errors(err);
 761                 goto end;
 762                 }
 763
 764         if (file == NULL)
 765                 {
 766                 setvbuf(stdin, NULL, _IONBF, 0);
 767                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 768                 }
 769         else
 770                 {
 771                 if (BIO_read_filename(cert,file) <= 0)
 772                         {
 773                         BIO_printf(err, "Error opening %s %s\n",
 774                                 cert_descrip, file);
 775                         ERR_print_errors(err);
 776                         goto end;
 777                         }
 778                 }
 779
 780         if      (format == FORMAT_ASN1)
 781                 x=d2i_X509_bio(cert,NULL);
 782         else if (format == FORMAT_NETSCAPE)
 783                 {
 784                 const unsigned char *p,*op;
 785                 int size=0,i;
 786
 787                 /* We sort of have to do it this way because it is sort of nice
 788                  * to read the header first and check it, then
 789                  * try to read the certificate */
 790                 buf=BUF_MEM_new();
 791                 for (;;)
 792                         {
 793                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 794                                 goto end;
 795                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 796                         size+=i;
 797                         if (i == 0) break;
 798                         if (i < 0)
 799                                 {
 800                                 perror("reading certificate");
 801                                 goto end;
 802                                 }
 803                         }
 804                 p=(unsigned char *)buf->data;
 805                 op=p;
 806
 807                 /* First load the header */
 808                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 809                         goto end;
 810                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 811                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 812                         ah->header->length) != 0))
 813                         {
 814                         BIO_printf(err,"Error reading header on certificate\n");
 815                         goto end;
 816                         }
 817                 /* header is ok, so now read the object */
 818                 p=op;
 819                 ah->meth=X509_asn1_meth();
 820                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 821                         goto end;
 822                 x=(X509 *)ah->data;
 823                 ah->data=NULL;
 824                 }
 825         else if (format == FORMAT_PEM)
 826                 x=PEM_read_bio_X509_AUX(cert,NULL,
 827                         (pem_password_cb *)password_callback, NULL);
 828         else if (format == FORMAT_PKCS12)
 829                 {
 830                 if (!load_pkcs12(err, cert,cert_descrip, NULL, NULL,
 831                                         NULL, &x, NULL))
 832                         goto end;
 833                 }
 834         else    {
 835                 BIO_printf(err,"bad input format specified for %s\n",
 836                         cert_descrip);
 837                 goto end;
 838                 }
 839 end:
 840         if (x == NULL)
 841                 {
 842                 BIO_printf(err,"unable to load certificate\n");
 843                 ERR_print_errors(err);
 844                 }
 845         if (ah != NULL) ASN1_HEADER_free(ah);
 846         if (cert != NULL) BIO_free(cert);
 847         if (buf != NULL) BUF_MEM_free(buf);
 848         return(x);
 849         }
 850
 851 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
 852         const char *pass, ENGINE *e, const char *key_descrip)
 853         {
 854         BIO *key=NULL;
 855         EVP_PKEY *pkey=NULL;
 856         PW_CB_DATA cb_data;
 857
 858         cb_data.password = pass;
 859         cb_data.prompt_info = file;
 860
 861         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 862                 {
 863                 BIO_printf(err,"no keyfile specified\n");
 864                 goto end;
 865                 }
 866 #ifndef OPENSSL_NO_ENGINE
 867         if (format == FORMAT_ENGINE)
 868                 {
 869                 if (!e)
 870                         BIO_printf(err,"no engine specified\n");
 871                 else
 872                         {
 873                         pkey = ENGINE_load_private_key(e, file,
 874                                 ui_method, &cb_data);
 875                         if (!pkey)
 876                                 {
 877                                 BIO_printf(err,"cannot load %s from engine\n",key_descrip);
 878                                 ERR_print_errors(err);
 879                                 }
 880                         }
 881                 goto end;
 882                 }
 883 #endif
 884         key=BIO_new(BIO_s_file());
 885         if (key == NULL)
 886                 {
 887                 ERR_print_errors(err);
 888                 goto end;
 889                 }
 890         if (file == NULL && maybe_stdin)
 891                 {
 892                 setvbuf(stdin, NULL, _IONBF, 0);
 893                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 894                 }
 895         else
 896                 if (BIO_read_filename(key,file) <= 0)
 897                         {
 898                         BIO_printf(err, "Error opening %s %s\n",
 899                                 key_descrip, file);
 900                         ERR_print_errors(err);
 901                         goto end;
 902                         }
 903         if (format == FORMAT_ASN1)
 904                 {
 905                 pkey=d2i_PrivateKey_bio(key, NULL);
 906                 }
 907         else if (format == FORMAT_PEM)
 908                 {
 909                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 910                         (pem_password_cb *)password_callback, &cb_data);
 911                 }
 912 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 913         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 914                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 915 #endif
 916         else if (format == FORMAT_PKCS12)
 917                 {
 918                 if (!load_pkcs12(err, key, key_descrip,
 919                                 (pem_password_cb *)password_callback, &cb_data,
 920                                 &pkey, NULL, NULL))
 921                         goto end;
 922                 }
 923         else
 924                 {
 925                 BIO_printf(err,"bad input format specified for key file\n");
 926                 goto end;
 927                 }
 928  end:
 929         if (key != NULL) BIO_free(key);
 930         if (pkey == NULL)
 931                 {
 932                 BIO_printf(err,"unable to load %s\n", key_descrip);
 933                 ERR_print_errors(err);
 934                 }
 935         return(pkey);
 936         }
 937
 938 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
 939         const char *pass, ENGINE *e, const char *key_descrip)
 940         {
 941         BIO *key=NULL;
 942         EVP_PKEY *pkey=NULL;
 943         PW_CB_DATA cb_data;
 944
 945         cb_data.password = pass;
 946         cb_data.prompt_info = file;
 947
 948         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
 949                 {
 950                 BIO_printf(err,"no keyfile specified\n");
 951                 goto end;
 952                 }
 953 #ifndef OPENSSL_NO_ENGINE
 954         if (format == FORMAT_ENGINE)
 955                 {
 956                 if (!e)
 957                         BIO_printf(bio_err,"no engine specified\n");
 958                 else
 959                         pkey = ENGINE_load_public_key(e, file,
 960                                 ui_method, &cb_data);
 961                 goto end;
 962                 }
 963 #endif
 964         key=BIO_new(BIO_s_file());
 965         if (key == NULL)
 966                 {
 967                 ERR_print_errors(err);
 968                 goto end;
 969                 }
 970         if (file == NULL && maybe_stdin)
 971                 {
 972                 setvbuf(stdin, NULL, _IONBF, 0);
 973                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
 974                 }
 975         else
 976                 if (BIO_read_filename(key,file) <= 0)
 977                         {
 978                         BIO_printf(err, "Error opening %s %s\n",
 979                                 key_descrip, file);
 980                         ERR_print_errors(err);
 981                         goto end;
 982                 }
 983         if (format == FORMAT_ASN1)
 984                 {
 985                 pkey=d2i_PUBKEY_bio(key, NULL);
 986                 }
 987         else if (format == FORMAT_PEM)
 988                 {
 989                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 990                         (pem_password_cb *)password_callback, &cb_data);
 991                 }
 992 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
 993         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 994                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 995 #endif
 996         else
 997                 {
 998                 BIO_printf(err,"bad input format specified for key file\n");
 999                 goto end;
1000                 }
1001  end:
1002         if (key != NULL) BIO_free(key);
1003         if (pkey == NULL)
1004                 BIO_printf(err,"unable to load %s\n", key_descrip);
1005         return(pkey);
1006         }
1007
1008 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1009 static EVP_PKEY *
1010 load_netscape_key(BIO *err, BIO *key, const char *file,
1011                 const char *key_descrip, int format)
1012         {
1013         EVP_PKEY *pkey;
1014         BUF_MEM *buf;
1015         RSA     *rsa;
1016         const unsigned char *p;
1017         int size, i;
1018
1019         buf=BUF_MEM_new();
1020         pkey = EVP_PKEY_new();
1021         size = 0;
1022         if (buf == NULL || pkey == NULL)
1023                 goto error;
1024         for (;;)
1025                 {
1026                 if (!BUF_MEM_grow_clean(buf,size+1024*10))
1027                         goto error;
1028                 i = BIO_read(key, &(buf->data[size]), 1024*10);
1029                 size += i;
1030                 if (i == 0)
1031                         break;
1032                 if (i < 0)
1033                         {
1034                                 BIO_printf(err, "Error reading %s %s",
1035                                         key_descrip, file);
1036                                 goto error;
1037                         }
1038                 }
1039         p=(unsigned char *)buf->data;
1040         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
1041                 (format == FORMAT_IISSGC ? 1 : 0));
1042         if (rsa == NULL)
1043                 goto error;
1044         BUF_MEM_free(buf);
1045         EVP_PKEY_set1_RSA(pkey, rsa);
1046         return pkey;
1047 error:
1048         BUF_MEM_free(buf);
1049         EVP_PKEY_free(pkey);
1050         return NULL;
1051         }
1052 #endif /* ndef OPENSSL_NO_RC4 */
1053
1054 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1055         const char *pass, ENGINE *e, const char *cert_descrip)
1056         {
1057         BIO *certs;
1058         int i;
1059         STACK_OF(X509) *othercerts = NULL;
1060         STACK_OF(X509_INFO) *allcerts = NULL;
1061         X509_INFO *xi;
1062         PW_CB_DATA cb_data;
1063
1064         cb_data.password = pass;
1065         cb_data.prompt_info = file;
1066
1067         if((certs = BIO_new(BIO_s_file())) == NULL)
1068                 {
1069                 ERR_print_errors(err);
1070                 goto end;
1071                 }
1072
1073         if (file == NULL)
1074                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
1075         else
1076                 {
1077                 if (BIO_read_filename(certs,file) <= 0)
1078                         {
1079                         BIO_printf(err, "Error opening %s %s\n",
1080                                 cert_descrip, file);
1081                         ERR_print_errors(err);
1082                         goto end;
1083                         }
1084                 }
1085
1086         if      (format == FORMAT_PEM)
1087                 {
1088                 othercerts = sk_X509_new_null();
1089                 if(!othercerts)
1090                         {
1091                         sk_X509_free(othercerts);
1092                         othercerts = NULL;
1093                         goto end;
1094                         }
1095                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1096                                 (pem_password_cb *)password_callback, &cb_data);
1097                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1098                         {
1099                         xi = sk_X509_INFO_value (allcerts, i);
1100                         if (xi->x509)
1101                                 {
1102                                 sk_X509_push(othercerts, xi->x509);
1103                                 xi->x509 = NULL;
1104                                 }
1105                         }
1106                 goto end;
1107                 }
1108         else    {
1109                 BIO_printf(err,"bad input format specified for %s\n",
1110                         cert_descrip);
1111                 goto end;
1112                 }
1113 end:
1114         if (othercerts == NULL)
1115                 {
1116                 BIO_printf(err,"unable to load certificates\n");
1117                 ERR_print_errors(err);
1118                 }
1119         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1120         if (certs != NULL) BIO_free(certs);
1121         return(othercerts);
1122         }
1123
1124
1125 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1126 /* Return error for unknown extensions */
1127 #define X509V3_EXT_DEFAULT              0
1128 /* Print error for unknown extensions */
1129 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1130 /* ASN1 parse unknown extensions */
1131 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1132 /* BIO_dump unknown extensions */
1133 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1134
1135 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1136                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1137
1138 int set_cert_ex(unsigned long *flags, const char *arg)
1139 {
1140         static const NAME_EX_TBL cert_tbl[] = {
1141                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1142                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1143                 { "no_header", X509_FLAG_NO_HEADER, 0},
1144                 { "no_version", X509_FLAG_NO_VERSION, 0},
1145                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1146                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1147                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1148                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1149                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1150                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1151                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1152                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1153                 { "no_aux", X509_FLAG_NO_AUX, 0},
1154                 { "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1155                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1156                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1157                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1158                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1159                 { NULL, 0, 0}
1160         };
1161         return set_multi_opts(flags, arg, cert_tbl);
1162 }
1163
1164 int set_name_ex(unsigned long *flags, const char *arg)
1165 {
1166         static const NAME_EX_TBL ex_tbl[] = {
1167                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1168                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1169                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1170                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1171                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1172                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1173                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1174                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1175                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1176                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1177                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1178                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1179                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1180                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1181                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1182                 { "dn_rev", XN_FLAG_DN_REV, 0},
1183                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1184                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1185                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1186                 { "align", XN_FLAG_FN_ALIGN, 0},
1187                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1188                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1189                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1190                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1191                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1192                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1193                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1194                 { NULL, 0, 0}
1195         };
1196         return set_multi_opts(flags, arg, ex_tbl);
1197 }
1198
1199 int set_ext_copy(int *copy_type, const char *arg)
1200 {
1201         if (!strcasecmp(arg, "none"))
1202                 *copy_type = EXT_COPY_NONE;
1203         else if (!strcasecmp(arg, "copy"))
1204                 *copy_type = EXT_COPY_ADD;
1205         else if (!strcasecmp(arg, "copyall"))
1206                 *copy_type = EXT_COPY_ALL;
1207         else
1208                 return 0;
1209         return 1;
1210 }
1211
1212 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1213 {
1214         STACK_OF(X509_EXTENSION) *exts = NULL;
1215         X509_EXTENSION *ext, *tmpext;
1216         ASN1_OBJECT *obj;
1217         int i, idx, ret = 0;
1218         if (!x || !req || (copy_type == EXT_COPY_NONE))
1219                 return 1;
1220         exts = X509_REQ_get_extensions(req);
1221
1222         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1223                 ext = sk_X509_EXTENSION_value(exts, i);
1224                 obj = X509_EXTENSION_get_object(ext);
1225                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1226                 /* Does extension exist? */
1227                 if (idx != -1) {
1228                         /* If normal copy don't override existing extension */
1229                         if (copy_type == EXT_COPY_ADD)
1230                                 continue;
1231                         /* Delete all extensions of same type */
1232                         do {
1233                                 tmpext = X509_get_ext(x, idx);
1234                                 X509_delete_ext(x, idx);
1235                                 X509_EXTENSION_free(tmpext);
1236                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1237                         } while (idx != -1);
1238                 }
1239                 if (!X509_add_ext(x, ext, -1))
1240                         goto end;
1241         }
1242
1243         ret = 1;
1244
1245         end:
1246
1247         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1248
1249         return ret;
1250 }
1251
1252
1253
1254
1255 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1256 {
1257         STACK_OF(CONF_VALUE) *vals;
1258         CONF_VALUE *val;
1259         int i, ret = 1;
1260         if(!arg) return 0;
1261         vals = X509V3_parse_list(arg);
1262         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1263                 val = sk_CONF_VALUE_value(vals, i);
1264                 if (!set_table_opts(flags, val->name, in_tbl))
1265                         ret = 0;
1266         }
1267         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1268         return ret;
1269 }
1270
1271 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1272 {
1273         char c;
1274         const NAME_EX_TBL *ptbl;
1275         c = arg[0];
1276
1277         if(c == '-') {
1278                 c = 0;
1279                 arg++;
1280         } else if (c == '+') {
1281                 c = 1;
1282                 arg++;
1283         } else c = 1;
1284
1285         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1286                 if(!strcasecmp(arg, ptbl->name)) {
1287                         *flags &= ~ptbl->mask;
1288                         if(c) *flags |= ptbl->flag;
1289                         else *flags &= ~ptbl->flag;
1290                         return 1;
1291                 }
1292         }
1293         return 0;
1294 }
1295
1296 void print_name(BIO *out, const char *title, X509_NAME *nm, unsigned long lflags)
1297 {
1298         char *buf;
1299         char mline = 0;
1300         int indent = 0;
1301
1302         if(title) BIO_puts(out, title);
1303         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1304                 mline = 1;
1305                 indent = 4;
1306         }
1307         if(lflags == XN_FLAG_COMPAT) {
1308                 buf = X509_NAME_oneline(nm, 0, 0);
1309                 BIO_puts(out, buf);
1310                 BIO_puts(out, "\n");
1311                 OPENSSL_free(buf);
1312         } else {
1313                 if(mline) BIO_puts(out, "\n");
1314                 X509_NAME_print_ex(out, nm, indent, lflags);
1315                 BIO_puts(out, "\n");
1316         }
1317 }
1318
1319 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1320 {
1321         X509_STORE *store;
1322         X509_LOOKUP *lookup;
1323         if(!(store = X509_STORE_new())) goto end;
1324         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1325         if (lookup == NULL) goto end;
1326         if (CAfile) {
1327                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1328                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1329                         goto end;
1330                 }
1331         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1332
1333         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1334         if (lookup == NULL) goto end;
1335         if (CApath) {
1336                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1337                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1338                         goto end;
1339                 }
1340         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1341
1342         ERR_clear_error();
1343         return store;
1344         end:
1345         X509_STORE_free(store);
1346         return NULL;
1347 }
1348
1349 #ifndef OPENSSL_NO_ENGINE
1350 /* Try to load an engine in a shareable library */
1351 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1352         {
1353         ENGINE *e = ENGINE_by_id("dynamic");
1354         if (e)
1355                 {
1356                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1357                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1358                         {
1359                         ENGINE_free(e);
1360                         e = NULL;
1361                         }
1362                 }
1363         return e;
1364         }
1365
1366 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1367         {
1368         ENGINE *e = NULL;
1369
1370         if (engine)
1371                 {
1372                 if(strcmp(engine, "auto") == 0)
1373                         {
1374                         BIO_printf(err,"enabling auto ENGINE support\n");
1375                         ENGINE_register_all_complete();
1376                         return NULL;
1377                         }
1378                 if((e = ENGINE_by_id(engine)) == NULL
1379                         && (e = try_load_engine(err, engine, debug)) == NULL)
1380                         {
1381                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1382                         ERR_print_errors(err);
1383                         return NULL;
1384                         }
1385                 if (debug)
1386                         {
1387                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1388                                 0, err, 0);
1389                         }
1390                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1391                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1392                         {
1393                         BIO_printf(err,"can't use that engine\n");
1394                         ERR_print_errors(err);
1395                         ENGINE_free(e);
1396                         return NULL;
1397                         }
1398
1399                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1400
1401                 /* Free our "structural" reference. */
1402                 ENGINE_free(e);
1403                 }
1404         return e;
1405         }
1406 #endif
1407
1408 int load_config(BIO *err, CONF *cnf)
1409         {
1410         if (!cnf)
1411                 cnf = config;
1412         if (!cnf)
1413                 return 1;
1414
1415         OPENSSL_load_builtin_modules();
1416
1417         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1418                 {
1419                 BIO_printf(err, "Error configuring OpenSSL\n");
1420                 ERR_print_errors(err);
1421                 return 0;
1422                 }
1423         return 1;
1424         }
1425
1426 char *make_config_name()
1427         {
1428         const char *t=X509_get_default_cert_area();
1429         size_t len;
1430         char *p;
1431
1432         len=strlen(t)+strlen(OPENSSL_CONF)+2;
1433         p=OPENSSL_malloc(len);
1434         if (p == NULL)
1435                 return NULL;
1436         BUF_strlcpy(p,t,len);
1437 #ifndef OPENSSL_SYS_VMS
1438         BUF_strlcat(p,"/",len);
1439 #endif
1440         BUF_strlcat(p,OPENSSL_CONF,len);
1441
1442         return p;
1443         }
1444
1445 static unsigned long index_serial_hash(const char **a)
1446         {
1447         const char *n;
1448
1449         n=a[DB_serial];
1450         while (*n == '0') n++;
1451         return(lh_strhash(n));
1452         }
1453
1454 static int index_serial_cmp(const char **a, const char **b)
1455         {
1456         const char *aa,*bb;
1457
1458         for (aa=a[DB_serial]; *aa == '0'; aa++);
1459         for (bb=b[DB_serial]; *bb == '0'; bb++);
1460         return(strcmp(aa,bb));
1461         }
1462
1463 static int index_name_qual(char **a)
1464         { return(a[0][0] == 'V'); }
1465
1466 static unsigned long index_name_hash(const char **a)
1467         { return(lh_strhash(a[DB_name])); }
1468
1469 int index_name_cmp(const char **a, const char **b)
1470         { return(strcmp(a[DB_name],
1471              b[DB_name])); }
1472
1473 static IMPLEMENT_LHASH_HASH_FN(index_serial_hash,const char **)
1474 static IMPLEMENT_LHASH_COMP_FN(index_serial_cmp,const char **)
1475 static IMPLEMENT_LHASH_HASH_FN(index_name_hash,const char **)
1476 static IMPLEMENT_LHASH_COMP_FN(index_name_cmp,const char **)
1477
1478 #undef BSIZE
1479 #define BSIZE 256
1480
1481 BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1482         {
1483         BIO *in=NULL;
1484         BIGNUM *ret=NULL;
1485         MS_STATIC char buf[1024];
1486         ASN1_INTEGER *ai=NULL;
1487
1488         ai=ASN1_INTEGER_new();
1489         if (ai == NULL) goto err;
1490
1491         if ((in=BIO_new(BIO_s_file())) == NULL)
1492                 {
1493                 ERR_print_errors(bio_err);
1494                 goto err;
1495                 }
1496
1497         if (BIO_read_filename(in,serialfile) <= 0)
1498                 {
1499                 if (!create)
1500                         {
1501                         perror(serialfile);
1502                         goto err;
1503                         }
1504                 else
1505                         {
1506                         ret=BN_new();
1507                         if (ret == NULL || !rand_serial(ret, ai))
1508                                 BIO_printf(bio_err, "Out of memory\n");
1509                         }
1510                 }
1511         else
1512                 {
1513                 if (!a2i_ASN1_INTEGER(in,ai,buf,1024))
1514                         {
1515                         BIO_printf(bio_err,"unable to load number from %s\n",
1516                                 serialfile);
1517                         goto err;
1518                         }
1519                 ret=ASN1_INTEGER_to_BN(ai,NULL);
1520                 if (ret == NULL)
1521                         {
1522                         BIO_printf(bio_err,"error converting number from bin to BIGNUM\n");
1523                         goto err;
1524                         }
1525                 }
1526
1527         if (ret && retai)
1528                 {
1529                 *retai = ai;
1530                 ai = NULL;
1531                 }
1532  err:
1533         if (in != NULL) BIO_free(in);
1534         if (ai != NULL) ASN1_INTEGER_free(ai);
1535         return(ret);
1536         }
1537
1538 int save_serial(char *serialfile, char *suffix, BIGNUM *serial, ASN1_INTEGER **retai)
1539         {
1540         char buf[1][BSIZE];
1541         BIO *out = NULL;
1542         int ret=0;
1543         ASN1_INTEGER *ai=NULL;
1544         int j;
1545
1546         if (suffix == NULL)
1547                 j = strlen(serialfile);
1548         else
1549                 j = strlen(serialfile) + strlen(suffix) + 1;
1550         if (j >= BSIZE)
1551                 {
1552                 BIO_printf(bio_err,"file name too long\n");
1553                 goto err;
1554                 }
1555
1556         if (suffix == NULL)
1557                 BUF_strlcpy(buf[0], serialfile, BSIZE);
1558         else
1559                 {
1560 #ifndef OPENSSL_SYS_VMS
1561                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1562 #else
1563                 j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1564 #endif
1565                 }
1566 #ifdef RL_DEBUG
1567         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1568 #endif
1569         out=BIO_new(BIO_s_file());
1570         if (out == NULL)
1571                 {
1572                 ERR_print_errors(bio_err);
1573                 goto err;
1574                 }
1575         if (BIO_write_filename(out,buf[0]) <= 0)
1576                 {
1577                 perror(serialfile);
1578                 goto err;
1579                 }
1580
1581         if ((ai=BN_to_ASN1_INTEGER(serial,NULL)) == NULL)
1582                 {
1583                 BIO_printf(bio_err,"error converting serial to ASN.1 format\n");
1584                 goto err;
1585                 }
1586         i2a_ASN1_INTEGER(out,ai);
1587         BIO_puts(out,"\n");
1588         ret=1;
1589         if (retai)
1590                 {
1591                 *retai = ai;
1592                 ai = NULL;
1593                 }
1594 err:
1595         if (out != NULL) BIO_free_all(out);
1596         if (ai != NULL) ASN1_INTEGER_free(ai);
1597         return(ret);
1598         }
1599
1600 int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1601         {
1602         char buf[5][BSIZE];
1603         int i,j;
1604         struct stat sb;
1605
1606         i = strlen(serialfile) + strlen(old_suffix);
1607         j = strlen(serialfile) + strlen(new_suffix);
1608         if (i > j) j = i;
1609         if (j + 1 >= BSIZE)
1610                 {
1611                 BIO_printf(bio_err,"file name too long\n");
1612                 goto err;
1613                 }
1614
1615 #ifndef OPENSSL_SYS_VMS
1616         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1617                 serialfile, new_suffix);
1618 #else
1619         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1620                 serialfile, new_suffix);
1621 #endif
1622 #ifndef OPENSSL_SYS_VMS
1623         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1624                 serialfile, old_suffix);
1625 #else
1626         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1627                 serialfile, old_suffix);
1628 #endif
1629         if (stat(serialfile,&sb) < 0)
1630                 {
1631                 if (errno != ENOENT
1632 #ifdef ENOTDIR
1633                         && errno != ENOTDIR
1634 #endif
1635                    )
1636                         goto err;
1637                 }
1638         else
1639                 {
1640 #ifdef RL_DEBUG
1641                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1642                         serialfile, buf[1]);
1643 #endif
1644                 if (rename(serialfile,buf[1]) < 0)
1645                         {
1646                         BIO_printf(bio_err,
1647                                 "unable to rename %s to %s\n",
1648                                 serialfile, buf[1]);
1649                         perror("reason");
1650                         goto err;
1651                         }
1652                 }
1653 #ifdef RL_DEBUG
1654         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1655                 buf[0],serialfile);
1656 #endif
1657         if (rename(buf[0],serialfile) < 0)
1658                 {
1659                 BIO_printf(bio_err,
1660                         "unable to rename %s to %s\n",
1661                         buf[0],serialfile);
1662                 perror("reason");
1663                 rename(buf[1],serialfile);
1664                 goto err;
1665                 }
1666         return 1;
1667  err:
1668         return 0;
1669         }
1670
1671 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1672         {
1673         BIGNUM *btmp;
1674         int ret = 0;
1675         if (b)
1676                 btmp = b;
1677         else
1678                 btmp = BN_new();
1679
1680         if (!btmp)
1681                 return 0;
1682
1683         if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1684                 goto error;
1685         if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1686                 goto error;
1687
1688         ret = 1;
1689
1690         error:
1691
1692         if (!b)
1693                 BN_free(btmp);
1694
1695         return ret;
1696         }
1697
1698 CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1699         {
1700         CA_DB *retdb = NULL;
1701         TXT_DB *tmpdb = NULL;
1702         BIO *in = BIO_new(BIO_s_file());
1703         CONF *dbattr_conf = NULL;
1704         char buf[1][BSIZE];
1705         long errorline= -1;
1706
1707         if (in == NULL)
1708                 {
1709                 ERR_print_errors(bio_err);
1710                 goto err;
1711                 }
1712         if (BIO_read_filename(in,dbfile) <= 0)
1713                 {
1714                 perror(dbfile);
1715                 BIO_printf(bio_err,"unable to open '%s'\n",dbfile);
1716                 goto err;
1717                 }
1718         if ((tmpdb = TXT_DB_read(in,DB_NUMBER)) == NULL)
1719                 {
1720                 if (tmpdb != NULL) TXT_DB_free(tmpdb);
1721                 goto err;
1722                 }
1723
1724 #ifndef OPENSSL_SYS_VMS
1725         BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1726 #else
1727         BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1728 #endif
1729         dbattr_conf = NCONF_new(NULL);
1730         if (NCONF_load(dbattr_conf,buf[0],&errorline) <= 0)
1731                 {
1732                 if (errorline > 0)
1733                         {
1734                         BIO_printf(bio_err,
1735                                 "error on line %ld of db attribute file '%s'\n"
1736                                 ,errorline,buf[0]);
1737                         goto err;
1738                         }
1739                 else
1740                         {
1741                         NCONF_free(dbattr_conf);
1742                         dbattr_conf = NULL;
1743                         }
1744                 }
1745
1746         if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL)
1747                 {
1748                 fprintf(stderr, "Out of memory\n");
1749                 goto err;
1750                 }
1751
1752         retdb->db = tmpdb;
1753         tmpdb = NULL;
1754         if (db_attr)
1755                 retdb->attributes = *db_attr;
1756         else
1757                 {
1758                 retdb->attributes.unique_subject = 1;
1759                 }
1760
1761         if (dbattr_conf)
1762                 {
1763                 char *p = NCONF_get_string(dbattr_conf,NULL,"unique_subject");
1764                 if (p)
1765                         {
1766 #ifdef RL_DEBUG
1767                         BIO_printf(bio_err, "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1768 #endif
1769                         retdb->attributes.unique_subject = parse_yesno(p,1);
1770                         }
1771                 }
1772
1773  err:
1774         if (dbattr_conf) NCONF_free(dbattr_conf);
1775         if (tmpdb) TXT_DB_free(tmpdb);
1776         if (in) BIO_free_all(in);
1777         return retdb;
1778         }
1779
1780 int index_index(CA_DB *db)
1781         {
1782         if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1783                                 LHASH_HASH_FN(index_serial_hash),
1784                                 LHASH_COMP_FN(index_serial_cmp)))
1785                 {
1786                 BIO_printf(bio_err,
1787                   "error creating serial number index:(%ld,%ld,%ld)\n",
1788                                         db->db->error,db->db->arg1,db->db->arg2);
1789                         return 0;
1790                 }
1791
1792         if (db->attributes.unique_subject
1793                 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1794                         LHASH_HASH_FN(index_name_hash),
1795                         LHASH_COMP_FN(index_name_cmp)))
1796                 {
1797                 BIO_printf(bio_err,"error creating name index:(%ld,%ld,%ld)\n",
1798                         db->db->error,db->db->arg1,db->db->arg2);
1799                 return 0;
1800                 }
1801         return 1;
1802         }
1803
1804 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1805         {
1806         char buf[3][BSIZE];
1807         BIO *out = BIO_new(BIO_s_file());
1808         int j;
1809
1810         if (out == NULL)
1811                 {
1812                 ERR_print_errors(bio_err);
1813                 goto err;
1814                 }
1815
1816         j = strlen(dbfile) + strlen(suffix);
1817         if (j + 6 >= BSIZE)
1818                 {
1819                 BIO_printf(bio_err,"file name too long\n");
1820                 goto err;
1821                 }
1822
1823 #ifndef OPENSSL_SYS_VMS
1824         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1825 #else
1826         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1827 #endif
1828 #ifndef OPENSSL_SYS_VMS
1829         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1830 #else
1831         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1832 #endif
1833 #ifndef OPENSSL_SYS_VMS
1834         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1835 #else
1836         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1837 #endif
1838 #ifdef RL_DEBUG
1839         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1840 #endif
1841         if (BIO_write_filename(out,buf[0]) <= 0)
1842                 {
1843                 perror(dbfile);
1844                 BIO_printf(bio_err,"unable to open '%s'\n", dbfile);
1845                 goto err;
1846                 }
1847         j=TXT_DB_write(out,db->db);
1848         if (j <= 0) goto err;
1849
1850         BIO_free(out);
1851
1852         out = BIO_new(BIO_s_file());
1853 #ifdef RL_DEBUG
1854         BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1855 #endif
1856         if (BIO_write_filename(out,buf[1]) <= 0)
1857                 {
1858                 perror(buf[2]);
1859                 BIO_printf(bio_err,"unable to open '%s'\n", buf[2]);
1860                 goto err;
1861                 }
1862         BIO_printf(out,"unique_subject = %s\n",
1863                 db->attributes.unique_subject ? "yes" : "no");
1864         BIO_free(out);
1865
1866         return 1;
1867  err:
1868         return 0;
1869         }
1870
1871 int rotate_index(const char *dbfile, const char *new_suffix, const char *old_suffix)
1872         {
1873         char buf[5][BSIZE];
1874         int i,j;
1875         struct stat sb;
1876
1877         i = strlen(dbfile) + strlen(old_suffix);
1878         j = strlen(dbfile) + strlen(new_suffix);
1879         if (i > j) j = i;
1880         if (j + 6 >= BSIZE)
1881                 {
1882                 BIO_printf(bio_err,"file name too long\n");
1883                 goto err;
1884                 }
1885
1886 #ifndef OPENSSL_SYS_VMS
1887         j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1888 #else
1889         j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1890 #endif
1891 #ifndef OPENSSL_SYS_VMS
1892         j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s",
1893                 dbfile, new_suffix);
1894 #else
1895         j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s",
1896                 dbfile, new_suffix);
1897 #endif
1898 #ifndef OPENSSL_SYS_VMS
1899         j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s",
1900                 dbfile, new_suffix);
1901 #else
1902         j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s",
1903                 dbfile, new_suffix);
1904 #endif
1905 #ifndef OPENSSL_SYS_VMS
1906         j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s",
1907                 dbfile, old_suffix);
1908 #else
1909         j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s",
1910                 dbfile, old_suffix);
1911 #endif
1912 #ifndef OPENSSL_SYS_VMS
1913         j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s",
1914                 dbfile, old_suffix);
1915 #else
1916         j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s",
1917                 dbfile, old_suffix);
1918 #endif
1919         if (stat(dbfile,&sb) < 0)
1920                 {
1921                 if (errno != ENOENT
1922 #ifdef ENOTDIR
1923                         && errno != ENOTDIR
1924 #endif
1925                    )
1926                         goto err;
1927                 }
1928         else
1929                 {
1930 #ifdef RL_DEBUG
1931                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1932                         dbfile, buf[1]);
1933 #endif
1934                 if (rename(dbfile,buf[1]) < 0)
1935                         {
1936                         BIO_printf(bio_err,
1937                                 "unable to rename %s to %s\n",
1938                                 dbfile, buf[1]);
1939                         perror("reason");
1940                         goto err;
1941                         }
1942                 }
1943 #ifdef RL_DEBUG
1944         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1945                 buf[0],dbfile);
1946 #endif
1947         if (rename(buf[0],dbfile) < 0)
1948                 {
1949                 BIO_printf(bio_err,
1950                         "unable to rename %s to %s\n",
1951                         buf[0],dbfile);
1952                 perror("reason");
1953                 rename(buf[1],dbfile);
1954                 goto err;
1955                 }
1956         if (stat(buf[4],&sb) < 0)
1957                 {
1958                 if (errno != ENOENT
1959 #ifdef ENOTDIR
1960                         && errno != ENOTDIR
1961 #endif
1962                    )
1963                         goto err;
1964                 }
1965         else
1966                 {
1967 #ifdef RL_DEBUG
1968                 BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1969                         buf[4],buf[3]);
1970 #endif
1971                 if (rename(buf[4],buf[3]) < 0)
1972                         {
1973                         BIO_printf(bio_err,
1974                                 "unable to rename %s to %s\n",
1975                                 buf[4], buf[3]);
1976                         perror("reason");
1977                         rename(dbfile,buf[0]);
1978                         rename(buf[1],dbfile);
1979                         goto err;
1980                         }
1981                 }
1982 #ifdef RL_DEBUG
1983         BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1984                 buf[2],buf[4]);
1985 #endif
1986         if (rename(buf[2],buf[4]) < 0)
1987                 {
1988                 BIO_printf(bio_err,
1989                         "unable to rename %s to %s\n",
1990                         buf[2],buf[4]);
1991                 perror("reason");
1992                 rename(buf[3],buf[4]);
1993                 rename(dbfile,buf[0]);
1994                 rename(buf[1],dbfile);
1995                 goto err;
1996                 }
1997         return 1;
1998  err:
1999         return 0;
2000         }
2001
2002 void free_index(CA_DB *db)
2003         {
2004         if (db)
2005                 {
2006                 if (db->db) TXT_DB_free(db->db);
2007                 OPENSSL_free(db);
2008                 }
2009         }
2010
2011 int parse_yesno(const char *str, int def)
2012         {
2013         int ret = def;
2014         if (str)
2015                 {
2016                 switch (*str)
2017                         {
2018                 case 'f': /* false */
2019                 case 'F': /* FALSE */
2020                 case 'n': /* no */
2021                 case 'N': /* NO */
2022                 case '0': /* 0 */
2023                         ret = 0;
2024                         break;
2025                 case 't': /* true */
2026                 case 'T': /* TRUE */
2027                 case 'y': /* yes */
2028                 case 'Y': /* YES */
2029                 case '1': /* 1 */
2030                         ret = 1;
2031                         break;
2032                 default:
2033                         ret = def;
2034                         break;
2035                         }
2036                 }
2037         return ret;
2038         }
2039
2040 /*
2041  * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2042  * where characters may be escaped by \
2043  */
2044 X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2045         {
2046         size_t buflen = strlen(subject)+1; /* to copy the types and values into. due to escaping, the copy can only become shorter */
2047         char *buf = OPENSSL_malloc(buflen);
2048         size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2049         char **ne_types = OPENSSL_malloc(max_ne * sizeof (char *));
2050         char **ne_values = OPENSSL_malloc(max_ne * sizeof (char *));
2051         int *mval = OPENSSL_malloc (max_ne * sizeof (int));
2052
2053         char *sp = subject, *bp = buf;
2054         int i, ne_num = 0;
2055
2056         X509_NAME *n = NULL;
2057         int nid;
2058
2059         if (!buf || !ne_types || !ne_values || !mval)
2060                 {
2061                 BIO_printf(bio_err, "malloc error\n");
2062                 goto error;
2063                 }
2064
2065         if (*subject != '/')
2066                 {
2067                 BIO_printf(bio_err, "Subject does not start with '/'.\n");
2068                 goto error;
2069                 }
2070         sp++; /* skip leading / */
2071
2072         /* no multivalued RDN by default */
2073         mval[ne_num] = 0;
2074
2075         while (*sp)
2076                 {
2077                 /* collect type */
2078                 ne_types[ne_num] = bp;
2079                 while (*sp)
2080                         {
2081                         if (*sp == '\\') /* is there anything to escape in the type...? */
2082                                 {
2083                                 if (*++sp)
2084                                         *bp++ = *sp++;
2085                                 else
2086                                         {
2087                                         BIO_printf(bio_err, "escape character at end of string\n");
2088                                         goto error;
2089                                         }
2090                                 }
2091                         else if (*sp == '=')
2092                                 {
2093                                 sp++;
2094                                 *bp++ = '\0';
2095                                 break;
2096                                 }
2097                         else
2098                                 *bp++ = *sp++;
2099                         }
2100                 if (!*sp)
2101                         {
2102                         BIO_printf(bio_err, "end of string encountered while processing type of subject name element #%d\n", ne_num);
2103                         goto error;
2104                         }
2105                 ne_values[ne_num] = bp;
2106                 while (*sp)
2107                         {
2108                         if (*sp == '\\')
2109                                 {
2110                                 if (*++sp)
2111                                         *bp++ = *sp++;
2112                                 else
2113                                         {
2114                                         BIO_printf(bio_err, "escape character at end of string\n");
2115                                         goto error;
2116                                         }
2117                                 }
2118                         else if (*sp == '/')
2119                                 {
2120                                 sp++;
2121                                 /* no multivalued RDN by default */
2122                                 mval[ne_num+1] = 0;
2123                                 break;
2124                                 }
2125                         else if (*sp == '+' && multirdn)
2126                                 {
2127                                 /* a not escaped + signals a mutlivalued RDN */
2128                                 sp++;
2129                                 mval[ne_num+1] = -1;
2130                                 break;
2131                                 }
2132                         else
2133                                 *bp++ = *sp++;
2134                         }
2135                 *bp++ = '\0';
2136                 ne_num++;
2137                 }
2138
2139         if (!(n = X509_NAME_new()))
2140                 goto error;
2141
2142         for (i = 0; i < ne_num; i++)
2143                 {
2144                 if ((nid=OBJ_txt2nid(ne_types[i])) == NID_undef)
2145                         {
2146                         BIO_printf(bio_err, "Subject Attribute %s has no known NID, skipped\n", ne_types[i]);
2147                         continue;
2148                         }
2149
2150                 if (!*ne_values[i])
2151                         {
2152                         BIO_printf(bio_err, "No value provided for Subject Attribute %s, skipped\n", ne_types[i]);
2153                         continue;
2154                         }
2155
2156                 if (!X509_NAME_add_entry_by_NID(n, nid, chtype, (unsigned char*)ne_values[i], -1,-1,mval[i]))
2157                         goto error;
2158                 }
2159
2160         OPENSSL_free(ne_values);
2161         OPENSSL_free(ne_types);
2162         OPENSSL_free(buf);
2163         OPENSSL_free(mval);
2164         return n;
2165
2166 error:
2167         X509_NAME_free(n);
2168         if (ne_values)
2169                 OPENSSL_free(ne_values);
2170         if (ne_types)
2171                 OPENSSL_free(ne_types);
2172         if (mval)
2173                 OPENSSL_free(mval);
2174         if (buf)
2175                 OPENSSL_free(buf);
2176         return NULL;
2177 }
2178
2179 /* This code MUST COME AFTER anything that uses rename() */
2180 #ifdef OPENSSL_SYS_WIN32
2181 int WIN32_rename(const char *from, const char *to)
2182         {
2183 #ifndef OPENSSL_SYS_WINCE
2184         /* Windows rename gives an error if 'to' exists, so delete it
2185          * first and ignore file not found errror
2186          */
2187         if((remove(to) != 0) && (errno != ENOENT))
2188                 return -1;
2189 #undef rename
2190         return rename(from, to);
2191 #else
2192         /* convert strings to UNICODE */
2193         {
2194         BOOL result = FALSE;
2195         WCHAR* wfrom;
2196         WCHAR* wto;
2197         int i;
2198         wfrom = malloc((strlen(from)+1)*2);
2199         wto = malloc((strlen(to)+1)*2);
2200         if (wfrom != NULL && wto != NULL)
2201                 {
2202                 for (i=0; i<(int)strlen(from)+1; i++)
2203                         wfrom[i] = (short)from[i];
2204                 for (i=0; i<(int)strlen(to)+1; i++)
2205                         wto[i] = (short)to[i];
2206                 result = MoveFile(wfrom, wto);
2207                 }
2208         if (wfrom != NULL)
2209                 free(wfrom);
2210         if (wto != NULL)
2211                 free(wto);
2212         return result;
2213         }
2214 #endif
2215         }
2216 #endif
2217
2218 int args_verify(char ***pargs, int *pargc,
2219                         int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2220         {
2221         ASN1_OBJECT *otmp = NULL;
2222         unsigned long flags = 0;
2223         int i;
2224         int purpose = 0;
2225         char **oldargs = *pargs;
2226         char *arg = **pargs, *argn = (*pargs)[1];
2227         if (!strcmp(arg, "-policy"))
2228                 {
2229                 if (!argn)
2230                         *badarg = 1;
2231                 else
2232                         {
2233                         otmp = OBJ_txt2obj(argn, 0);
2234                         if (!otmp)
2235                                 {
2236                                 BIO_printf(err, "Invalid Policy \"%s\"\n",
2237                                                                         argn);
2238                                 *badarg = 1;
2239                                 }
2240                         }
2241                 (*pargs)++;
2242                 }
2243         else if (strcmp(arg,"-purpose") == 0)
2244                 {
2245                 X509_PURPOSE *xptmp;
2246                 if (!argn)
2247                         *badarg = 1;
2248                 else
2249                         {
2250                         i = X509_PURPOSE_get_by_sname(argn);
2251                         if(i < 0)
2252                                 {
2253                                 BIO_printf(err, "unrecognized purpose\n");
2254                                 *badarg = 1;
2255                                 }
2256                         else
2257                                 {
2258                                 xptmp = X509_PURPOSE_get0(i);
2259                                 purpose = X509_PURPOSE_get_id(xptmp);
2260                                 }
2261                         }
2262                 (*pargs)++;
2263                 }
2264         else if (!strcmp(arg, "-ignore_critical"))
2265                 flags |= X509_V_FLAG_IGNORE_CRITICAL;
2266         else if (!strcmp(arg, "-issuer_checks"))
2267                 flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2268         else if (!strcmp(arg, "-crl_check"))
2269                 flags |=  X509_V_FLAG_CRL_CHECK;
2270         else if (!strcmp(arg, "-crl_check_all"))
2271                 flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
2272         else if (!strcmp(arg, "-policy_check"))
2273                 flags |= X509_V_FLAG_POLICY_CHECK;
2274         else if (!strcmp(arg, "-explicit_policy"))
2275                 flags |= X509_V_FLAG_EXPLICIT_POLICY;
2276         else if (!strcmp(arg, "-x509_strict"))
2277                 flags |= X509_V_FLAG_X509_STRICT;
2278         else if (!strcmp(arg, "-policy_print"))
2279                 flags |= X509_V_FLAG_NOTIFY_POLICY;
2280         else if (!strcmp(arg, "-check_ss_sig"))
2281                 flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2282         else
2283                 return 0;
2284
2285         if (*badarg)
2286                 {
2287                 if (*pm)
2288                         X509_VERIFY_PARAM_free(*pm);
2289                 *pm = NULL;
2290                 goto end;
2291                 }
2292
2293         if (!*pm && !(*pm = X509_VERIFY_PARAM_new()))
2294                 {
2295                 *badarg = 1;
2296                 goto end;
2297                 }
2298
2299         if (otmp)
2300                 X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2301         if (flags)
2302                 X509_VERIFY_PARAM_set_flags(*pm, flags);
2303
2304         if (purpose)
2305                 X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2306
2307         end:
2308
2309         (*pargs)++;
2310
2311         if (pargc)
2312                 *pargc -= *pargs - oldargs;
2313
2314         return 1;
2315
2316         }
2317
2318 static void nodes_print(BIO *out, const char *name,
2319         STACK_OF(X509_POLICY_NODE) *nodes)
2320         {
2321         X509_POLICY_NODE *node;
2322         int i;
2323         BIO_printf(out, "%s Policies:", name);
2324         if (nodes)
2325                 {
2326                 BIO_puts(out, "\n");
2327                 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++)
2328                         {
2329                         node = sk_X509_POLICY_NODE_value(nodes, i);
2330                         X509_POLICY_NODE_print(out, node, 2);
2331                         }
2332                 }
2333         else
2334                 BIO_puts(out, " <empty>\n");
2335         }
2336
2337 void policies_print(BIO *out, X509_STORE_CTX *ctx)
2338         {
2339         X509_POLICY_TREE *tree;
2340         int explicit_policy;
2341         int free_out = 0;
2342         if (out == NULL)
2343                 {
2344                 out = BIO_new_fp(stderr, BIO_NOCLOSE);
2345                 free_out = 1;
2346                 }
2347         tree = X509_STORE_CTX_get0_policy_tree(ctx);
2348         explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2349
2350         BIO_printf(out, "Require explicit Policy: %s\n",
2351                                 explicit_policy ? "True" : "False");
2352
2353         nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2354         nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2355         if (free_out)
2356                 BIO_free(out);
2357         }
2358
2359 #ifndef OPENSSL_NO_JPAKE
2360
2361 static JPAKE_CTX *jpake_init(const char *us, const char *them,
2362                                                          const char *secret)
2363         {
2364         BIGNUM *p = NULL;
2365         BIGNUM *g = NULL;
2366         BIGNUM *q = NULL;
2367         BIGNUM *bnsecret = BN_new();
2368         JPAKE_CTX *ctx;
2369
2370         /* Use a safe prime for p (that we found earlier) */
2371         BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2372         g = BN_new();
2373         BN_set_word(g, 2);
2374         q = BN_new();
2375         BN_rshift1(q, p);
2376
2377         BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2378
2379         ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2380         BN_free(bnsecret);
2381         BN_free(q);
2382         BN_free(g);
2383         BN_free(p);
2384
2385         return ctx;
2386         }
2387
2388 static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2389         {
2390         BN_print(conn, p->gx);
2391         BIO_puts(conn, "\n");
2392         BN_print(conn, p->zkpx.gr);
2393         BIO_puts(conn, "\n");
2394         BN_print(conn, p->zkpx.b);
2395         BIO_puts(conn, "\n");
2396         }
2397
2398 static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2399         {
2400         JPAKE_STEP1 s1;
2401
2402         JPAKE_STEP1_init(&s1);
2403         JPAKE_STEP1_generate(&s1, ctx);
2404         jpake_send_part(bconn, &s1.p1);
2405         jpake_send_part(bconn, &s1.p2);
2406         (void)BIO_flush(bconn);
2407         JPAKE_STEP1_release(&s1);
2408         }
2409
2410 static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2411         {
2412         JPAKE_STEP2 s2;
2413
2414         JPAKE_STEP2_init(&s2);
2415         JPAKE_STEP2_generate(&s2, ctx);
2416         jpake_send_part(bconn, &s2);
2417         (void)BIO_flush(bconn);
2418         JPAKE_STEP2_release(&s2);
2419         }
2420
2421 static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2422         {
2423         JPAKE_STEP3A s3a;
2424
2425         JPAKE_STEP3A_init(&s3a);
2426         JPAKE_STEP3A_generate(&s3a, ctx);
2427         BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2428         (void)BIO_flush(bconn);
2429         JPAKE_STEP3A_release(&s3a);
2430         }
2431
2432 static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2433         {
2434         JPAKE_STEP3B s3b;
2435
2436         JPAKE_STEP3B_init(&s3b);
2437         JPAKE_STEP3B_generate(&s3b, ctx);
2438         BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2439         (void)BIO_flush(bconn);
2440         JPAKE_STEP3B_release(&s3b);
2441         }
2442
2443 static void readbn(BIGNUM **bn, BIO *bconn)
2444         {
2445         char buf[10240];
2446         int l;
2447
2448         l = BIO_gets(bconn, buf, sizeof buf);
2449         assert(l > 0);
2450         assert(buf[l-1] == '\n');
2451         buf[l-1] = '\0';
2452         BN_hex2bn(bn, buf);
2453         }
2454
2455 static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2456         {
2457         readbn(&p->gx, bconn);
2458         readbn(&p->zkpx.gr, bconn);
2459         readbn(&p->zkpx.b, bconn);
2460         }
2461
2462 static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2463         {
2464         JPAKE_STEP1 s1;
2465
2466         JPAKE_STEP1_init(&s1);
2467         jpake_receive_part(&s1.p1, bconn);
2468         jpake_receive_part(&s1.p2, bconn);
2469         if(!JPAKE_STEP1_process(ctx, &s1))
2470                 {
2471                 ERR_print_errors(bio_err);
2472                 exit(1);
2473                 }
2474         JPAKE_STEP1_release(&s1);
2475         }
2476
2477 static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2478         {
2479         JPAKE_STEP2 s2;
2480
2481         JPAKE_STEP2_init(&s2);
2482         jpake_receive_part(&s2, bconn);
2483         if(!JPAKE_STEP2_process(ctx, &s2))
2484                 {
2485                 ERR_print_errors(bio_err);
2486                 exit(1);
2487                 }
2488         JPAKE_STEP2_release(&s2);
2489         }
2490
2491 static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2492         {
2493         JPAKE_STEP3A s3a;
2494         int l;
2495
2496         JPAKE_STEP3A_init(&s3a);
2497         l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2498         assert(l == sizeof s3a.hhk);
2499         if(!JPAKE_STEP3A_process(ctx, &s3a))
2500                 {
2501                 ERR_print_errors(bio_err);
2502                 exit(1);
2503                 }
2504         JPAKE_STEP3A_release(&s3a);
2505         }
2506
2507 static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2508         {
2509         JPAKE_STEP3B s3b;
2510         int l;
2511
2512         JPAKE_STEP3B_init(&s3b);
2513         l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2514         assert(l == sizeof s3b.hk);
2515         if(!JPAKE_STEP3B_process(ctx, &s3b))
2516                 {
2517                 ERR_print_errors(bio_err);
2518                 exit(1);
2519                 }
2520         JPAKE_STEP3B_release(&s3b);
2521         }
2522
2523 void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2524         {
2525         JPAKE_CTX *ctx;
2526         BIO *bconn;
2527
2528         BIO_puts(out, "Authenticating with JPAKE\n");
2529
2530         ctx = jpake_init("client", "server", secret);
2531
2532         bconn = BIO_new(BIO_f_buffer());
2533         BIO_push(bconn, conn);
2534
2535         jpake_send_step1(bconn, ctx);
2536         jpake_receive_step1(ctx, bconn);
2537         jpake_send_step2(bconn, ctx);
2538         jpake_receive_step2(ctx, bconn);
2539         jpake_send_step3a(bconn, ctx);
2540         jpake_receive_step3b(ctx, bconn);
2541
2542         /*
2543          * The problem is that you must use the derived key in the
2544          * session key or you are subject to man-in-the-middle
2545          * attacks.
2546          */
2547         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2548                  " be MitMed. See the version in HEAD for how to do it"
2549                  " properly)\n");
2550
2551         BIO_pop(bconn);
2552         BIO_free(bconn);
2553         }
2554
2555 void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2556         {
2557         JPAKE_CTX *ctx;
2558         BIO *bconn;
2559
2560         BIO_puts(out, "Authenticating with JPAKE\n");
2561
2562         ctx = jpake_init("server", "client", secret);
2563
2564         bconn = BIO_new(BIO_f_buffer());
2565         BIO_push(bconn, conn);
2566
2567         jpake_receive_step1(ctx, bconn);
2568         jpake_send_step1(bconn, ctx);
2569         jpake_receive_step2(ctx, bconn);
2570         jpake_send_step2(bconn, ctx);
2571         jpake_receive_step3a(ctx, bconn);
2572         jpake_send_step3b(bconn, ctx);
2573
2574         /*
2575          * The problem is that you must use the derived key in the
2576          * session key or you are subject to man-in-the-middle
2577          * attacks.
2578          */
2579         BIO_puts(out, "JPAKE authentication succeeded (N.B. This version can"
2580                  " be MitMed. See the version in HEAD for how to do it"
2581                  " properly)\n");
2582
2583         BIO_pop(bconn);
2584         BIO_free(bconn);
2585         }
2586
2587 #endif