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 #define NON_MAIN
 118 #include "apps.h"
 119 #undef NON_MAIN
 120 #include <openssl/err.h>
 121 #include <openssl/x509.h>
 122 #include <openssl/x509v3.h>
 123 #include <openssl/pem.h>
 124 #include <openssl/pkcs12.h>
 125 #include <openssl/ui.h>
 126 #include <openssl/safestack.h>
 127 #include <openssl/engine.h>
 128
 129 #ifdef OPENSSL_SYS_WINDOWS
 130 #define strcasecmp _stricmp
 131 #else
 132 #include <strings.h>
 133 #endif
 134
 135 #ifdef OPENSSL_SYS_WINDOWS
 136 #  include "bss_file.c"
 137 #endif
 138
 139 typedef struct {
 140         char *name;
 141         unsigned long flag;
 142         unsigned long mask;
 143 } NAME_EX_TBL;
 144
 145 static UI_METHOD *ui_method = NULL;
 146
 147 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 148 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
 149
 150 #ifndef OPENSSL_NO_RC4
 151 /* Looks like this stuff is worth moving into separate function */
 152 static EVP_PKEY *
 153 load_netscape_key(BIO *err, BIO *key, const char *file,
 154                 const char *key_descrip, int format);
 155 #endif
 156
 157 int app_init(long mesgwin);
 158 #ifdef undef /* never finished - probably never will be :-) */
 159 int args_from_file(char *file, int *argc, char **argv[])
 160         {
 161         FILE *fp;
 162         int num,i;
 163         unsigned int len;
 164         static char *buf=NULL;
 165         static char **arg=NULL;
 166         char *p;
 167         struct stat stbuf;
 168
 169         if (stat(file,&stbuf) < 0) return(0);
 170
 171         fp=fopen(file,"r");
 172         if (fp == NULL)
 173                 return(0);
 174
 175         *argc=0;
 176         *argv=NULL;
 177
 178         len=(unsigned int)stbuf.st_size;
 179         if (buf != NULL) OPENSSL_free(buf);
 180         buf=(char *)OPENSSL_malloc(len+1);
 181         if (buf == NULL) return(0);
 182
 183         len=fread(buf,1,len,fp);
 184         if (len <= 1) return(0);
 185         buf[len]='\0';
 186
 187         i=0;
 188         for (p=buf; *p; p++)
 189                 if (*p == '\n') i++;
 190         if (arg != NULL) OPENSSL_free(arg);
 191         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 192
 193         *argv=arg;
 194         num=0;
 195         p=buf;
 196         for (;;)
 197                 {
 198                 if (!*p) break;
 199                 if (*p == '#') /* comment line */
 200                         {
 201                         while (*p && (*p != '\n')) p++;
 202                         continue;
 203                         }
 204                 /* else we have a line */
 205                 *(arg++)=p;
 206                 num++;
 207                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 208                         p++;
 209                 if (!*p) break;
 210                 if (*p == '\n')
 211                         {
 212                         *(p++)='\0';
 213                         continue;
 214                         }
 215                 /* else it is a tab or space */
 216                 p++;
 217                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 218                         p++;
 219                 if (!*p) break;
 220                 if (*p == '\n')
 221                         {
 222                         p++;
 223                         continue;
 224                         }
 225                 *(arg++)=p++;
 226                 num++;
 227                 while (*p && (*p != '\n')) p++;
 228                 if (!*p) break;
 229                 /* else *p == '\n' */
 230                 *(p++)='\0';
 231                 }
 232         *argc=num;
 233         return(1);
 234         }
 235 #endif
 236
 237 int str2fmt(char *s)
 238         {
 239         if      ((*s == 'D') || (*s == 'd'))
 240                 return(FORMAT_ASN1);
 241         else if ((*s == 'T') || (*s == 't'))
 242                 return(FORMAT_TEXT);
 243         else if ((*s == 'P') || (*s == 'p'))
 244                 return(FORMAT_PEM);
 245         else if ((*s == 'N') || (*s == 'n'))
 246                 return(FORMAT_NETSCAPE);
 247         else if ((*s == 'S') || (*s == 's'))
 248                 return(FORMAT_SMIME);
 249         else if ((*s == '1')
 250                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 251                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 252                 return(FORMAT_PKCS12);
 253         else if ((*s == 'E') || (*s == 'e'))
 254                 return(FORMAT_ENGINE);
 255         else
 256                 return(FORMAT_UNDEF);
 257         }
 258
 259 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
 260 void program_name(char *in, char *out, int size)
 261         {
 262         int i,n;
 263         char *p=NULL;
 264
 265         n=strlen(in);
 266         /* find the last '/', '\' or ':' */
 267         for (i=n-1; i>0; i--)
 268                 {
 269                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 270                         {
 271                         p= &(in[i+1]);
 272                         break;
 273                         }
 274                 }
 275         if (p == NULL)
 276                 p=in;
 277         n=strlen(p);
 278         /* strip off trailing .exe if present. */
 279         if ((n > 4) && (p[n-4] == '.') &&
 280                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 281                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 282                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 283                 n-=4;
 284         if (n > size-1)
 285                 n=size-1;
 286
 287         for (i=0; i<n; i++)
 288                 {
 289                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 290                         out[i]=p[i]-'A'+'a';
 291                 else
 292                         out[i]=p[i];
 293                 }
 294         out[n]='\0';
 295         }
 296 #else
 297 #ifdef OPENSSL_SYS_VMS
 298 void program_name(char *in, char *out, int size)
 299         {
 300         char *p=in, *q;
 301         char *chars=":]>";
 302
 303         while(*chars != '\0')
 304                 {
 305                 q=strrchr(p,*chars);
 306                 if (q > p)
 307                         p = q + 1;
 308                 chars++;
 309                 }
 310
 311         q=strrchr(p,'.');
 312         if (q == NULL)
 313                 q = in+size;
 314         strncpy(out,p,q-p);
 315         out[q-p]='\0';
 316         }
 317 #else
 318 void program_name(char *in, char *out, int size)
 319         {
 320         char *p;
 321
 322         p=strrchr(in,'/');
 323         if (p != NULL)
 324                 p++;
 325         else
 326                 p=in;
 327         strncpy(out,p,size-1);
 328         out[size-1]='\0';
 329         }
 330 #endif
 331 #endif
 332
 333 #ifdef OPENSSL_SYS_WIN32
 334 int WIN32_rename(char *from, char *to)
 335         {
 336 #ifdef OPENSSL_SYS_WINNT
 337         int ret;
 338 /* Note: MoveFileEx() doesn't work under Win95, Win98 */
 339
 340         ret=MoveFileEx(from,to,MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED);
 341         return(ret?0:-1);
 342 #else
 343         unlink(to);
 344         return MoveFile(from, to);
 345 #endif
 346         }
 347 #endif
 348
 349 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 350         {
 351         int num,len,i;
 352         char *p;
 353
 354         *argc=0;
 355         *argv=NULL;
 356
 357         len=strlen(buf);
 358         i=0;
 359         if (arg->count == 0)
 360                 {
 361                 arg->count=20;
 362                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 363                 }
 364         for (i=0; i<arg->count; i++)
 365                 arg->data[i]=NULL;
 366
 367         num=0;
 368         p=buf;
 369         for (;;)
 370                 {
 371                 /* first scan over white space */
 372                 if (!*p) break;
 373                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 374                         p++;
 375                 if (!*p) break;
 376
 377                 /* The start of something good :-) */
 378                 if (num >= arg->count)
 379                         {
 380                         arg->count+=20;
 381                         arg->data=(char **)OPENSSL_realloc(arg->data,
 382                                 sizeof(char *)*arg->count);
 383                         if (argc == 0) return(0);
 384                         }
 385                 arg->data[num++]=p;
 386
 387                 /* now look for the end of this */
 388                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 389                         {
 390                         i= *(p++);
 391                         arg->data[num-1]++; /* jump over quote */
 392                         while (*p && (*p != i))
 393                                 p++;
 394                         *p='\0';
 395                         }
 396                 else
 397                         {
 398                         while (*p && ((*p != ' ') &&
 399                                 (*p != '\t') && (*p != '\n')))
 400                                 p++;
 401
 402                         if (*p == '\0')
 403                                 p--;
 404                         else
 405                                 *p='\0';
 406                         }
 407                 p++;
 408                 }
 409         *argc=num;
 410         *argv=arg->data;
 411         return(1);
 412         }
 413
 414 #ifndef APP_INIT
 415 int app_init(long mesgwin)
 416         {
 417         return(1);
 418         }
 419 #endif
 420
 421
 422 int dump_cert_text (BIO *out, X509 *x)
 423 {
 424         char buf[256];
 425         X509_NAME_oneline(X509_get_subject_name(x),buf,256);
 426         BIO_puts(out,"subject=");
 427         BIO_puts(out,buf);
 428
 429         X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
 430         BIO_puts(out,"\nissuer= ");
 431         BIO_puts(out,buf);
 432         BIO_puts(out,"\n");
 433         return 0;
 434 }
 435
 436 static int ui_open(UI *ui)
 437         {
 438         return UI_method_get_opener(UI_OpenSSL())(ui);
 439         }
 440 static int ui_read(UI *ui, UI_STRING *uis)
 441         {
 442         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 443                 && UI_get0_user_data(ui))
 444                 {
 445                 switch(UI_get_string_type(uis))
 446                         {
 447                 case UIT_PROMPT:
 448                 case UIT_VERIFY:
 449                         {
 450                         const char *password =
 451                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 452                         if (password[0] != '\0')
 453                                 {
 454                                 UI_set_result(ui, uis, password);
 455                                 return 1;
 456                                 }
 457                         }
 458                 default:
 459                         break;
 460                         }
 461                 }
 462         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 463         }
 464 static int ui_write(UI *ui, UI_STRING *uis)
 465         {
 466         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 467                 && UI_get0_user_data(ui))
 468                 {
 469                 switch(UI_get_string_type(uis))
 470                         {
 471                 case UIT_PROMPT:
 472                 case UIT_VERIFY:
 473                         {
 474                         const char *password =
 475                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 476                         if (password[0] != '\0')
 477                                 return 1;
 478                         }
 479                 default:
 480                         break;
 481                         }
 482                 }
 483         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 484         }
 485 static int ui_close(UI *ui)
 486         {
 487         return UI_method_get_closer(UI_OpenSSL())(ui);
 488         }
 489 int setup_ui_method()
 490         {
 491         ui_method = UI_create_method("OpenSSL application user interface");
 492         UI_method_set_opener(ui_method, ui_open);
 493         UI_method_set_reader(ui_method, ui_read);
 494         UI_method_set_writer(ui_method, ui_write);
 495         UI_method_set_closer(ui_method, ui_close);
 496         return 0;
 497         }
 498 void destroy_ui_method()
 499         {
 500         if(ui_method)
 501                 {
 502                 UI_destroy_method(ui_method);
 503                 ui_method = NULL;
 504                 }
 505         }
 506 int password_callback(char *buf, int bufsiz, int verify,
 507         PW_CB_DATA *cb_tmp)
 508         {
 509         UI *ui = NULL;
 510         int res = 0;
 511         const char *prompt_info = NULL;
 512         const char *password = NULL;
 513         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 514
 515         if (cb_data)
 516                 {
 517                 if (cb_data->password)
 518                         password = cb_data->password;
 519                 if (cb_data->prompt_info)
 520                         prompt_info = cb_data->prompt_info;
 521                 }
 522
 523         if (password)
 524                 {
 525                 res = strlen(password);
 526                 if (res > bufsiz)
 527                         res = bufsiz;
 528                 memcpy(buf, password, res);
 529                 return res;
 530                 }
 531
 532         ui = UI_new_method(ui_method);
 533         if (ui)
 534                 {
 535                 int ok = 0;
 536                 char *buff = NULL;
 537                 int ui_flags = 0;
 538                 char *prompt = NULL;
 539
 540                 prompt = UI_construct_prompt(ui, "pass phrase",
 541                         cb_data->prompt_info);
 542
 543                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 544                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 545
 546                 if (ok >= 0)
 547                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
 548                                 PW_MIN_LENGTH,BUFSIZ-1);
 549                 if (ok >= 0 && verify)
 550                         {
 551                         buff = (char *)OPENSSL_malloc(bufsiz);
 552                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
 553                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
 554                         }
 555                 if (ok >= 0)
 556                         do
 557                                 {
 558                                 ok = UI_process(ui);
 559                                 }
 560                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 561
 562                 if (buff)
 563                         {
 564                         memset(buff,0,(unsigned int)bufsiz);
 565                         OPENSSL_free(buff);
 566                         }
 567
 568                 if (ok >= 0)
 569                         res = strlen(buf);
 570                 if (ok == -1)
 571                         {
 572                         BIO_printf(bio_err, "User interface error\n");
 573                         ERR_print_errors(bio_err);
 574                         memset(buf,0,(unsigned int)bufsiz);
 575                         res = 0;
 576                         }
 577                 if (ok == -2)
 578                         {
 579                         BIO_printf(bio_err,"aborted!\n");
 580                         memset(buf,0,(unsigned int)bufsiz);
 581                         res = 0;
 582                         }
 583                 UI_free(ui);
 584                 OPENSSL_free(prompt);
 585                 }
 586         return res;
 587         }
 588
 589 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 590
 591 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 592 {
 593         int same;
 594         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 595         else same = 1;
 596         if(arg1) {
 597                 *pass1 = app_get_pass(err, arg1, same);
 598                 if(!*pass1) return 0;
 599         } else if(pass1) *pass1 = NULL;
 600         if(arg2) {
 601                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 602                 if(!*pass2) return 0;
 603         } else if(pass2) *pass2 = NULL;
 604         return 1;
 605 }
 606
 607 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 608 {
 609         char *tmp, tpass[APP_PASS_LEN];
 610         static BIO *pwdbio = NULL;
 611         int i;
 612         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 613         if(!strncmp(arg, "env:", 4)) {
 614                 tmp = getenv(arg + 4);
 615                 if(!tmp) {
 616                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 617                         return NULL;
 618                 }
 619                 return BUF_strdup(tmp);
 620         }
 621         if(!keepbio || !pwdbio) {
 622                 if(!strncmp(arg, "file:", 5)) {
 623                         pwdbio = BIO_new_file(arg + 5, "r");
 624                         if(!pwdbio) {
 625                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 626                                 return NULL;
 627                         }
 628                 } else if(!strncmp(arg, "fd:", 3)) {
 629                         BIO *btmp;
 630                         i = atoi(arg + 3);
 631                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 632                         if((i < 0) || !pwdbio) {
 633                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 634                                 return NULL;
 635                         }
 636                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 637                         btmp = BIO_new(BIO_f_buffer());
 638                         pwdbio = BIO_push(btmp, pwdbio);
 639                 } else if(!strcmp(arg, "stdin")) {
 640                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 641                         if(!pwdbio) {
 642                                 BIO_printf(err, "Can't open BIO for stdin\n");
 643                                 return NULL;
 644                         }
 645                 } else {
 646                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 647                         return NULL;
 648                 }
 649         }
 650         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 651         if(keepbio != 1) {
 652                 BIO_free_all(pwdbio);
 653                 pwdbio = NULL;
 654         }
 655         if(i <= 0) {
 656                 BIO_printf(err, "Error reading password from BIO\n");
 657                 return NULL;
 658         }
 659         tmp = strchr(tpass, '\n');
 660         if(tmp) *tmp = 0;
 661         return BUF_strdup(tpass);
 662 }
 663
 664 int add_oid_section(BIO *err, CONF *conf)
 665 {
 666         char *p;
 667         STACK_OF(CONF_VALUE) *sktmp;
 668         CONF_VALUE *cnf;
 669         int i;
 670         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
 671                 {
 672                 ERR_clear_error();
 673                 return 1;
 674                 }
 675         if(!(sktmp = NCONF_get_section(conf, p))) {
 676                 BIO_printf(err, "problem loading oid section %s\n", p);
 677                 return 0;
 678         }
 679         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 680                 cnf = sk_CONF_VALUE_value(sktmp, i);
 681                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 682                         BIO_printf(err, "problem creating object %s=%s\n",
 683                                                          cnf->name, cnf->value);
 684                         return 0;
 685                 }
 686         }
 687         return 1;
 688 }
 689
 690 X509 *load_cert(BIO *err, const char *file, int format,
 691         const char *pass, ENGINE *e, const char *cert_descrip)
 692         {
 693         ASN1_HEADER *ah=NULL;
 694         BUF_MEM *buf=NULL;
 695         X509 *x=NULL;
 696         BIO *cert;
 697
 698         if ((cert=BIO_new(BIO_s_file())) == NULL)
 699                 {
 700                 ERR_print_errors(err);
 701                 goto end;
 702                 }
 703
 704         if (file == NULL)
 705                 {
 706                 setvbuf(stdin, NULL, _IONBF, 0);
 707                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 708                 }
 709         else
 710                 {
 711                 if (BIO_read_filename(cert,file) <= 0)
 712                         {
 713                         BIO_printf(err, "Error opening %s %s\n",
 714                                 cert_descrip, file);
 715                         ERR_print_errors(err);
 716                         goto end;
 717                         }
 718                 }
 719
 720         if      (format == FORMAT_ASN1)
 721                 x=d2i_X509_bio(cert,NULL);
 722         else if (format == FORMAT_NETSCAPE)
 723                 {
 724                 unsigned char *p,*op;
 725                 int size=0,i;
 726
 727                 /* We sort of have to do it this way because it is sort of nice
 728                  * to read the header first and check it, then
 729                  * try to read the certificate */
 730                 buf=BUF_MEM_new();
 731                 for (;;)
 732                         {
 733                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 734                                 goto end;
 735                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 736                         size+=i;
 737                         if (i == 0) break;
 738                         if (i < 0)
 739                                 {
 740                                 perror("reading certificate");
 741                                 goto end;
 742                                 }
 743                         }
 744                 p=(unsigned char *)buf->data;
 745                 op=p;
 746
 747                 /* First load the header */
 748                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 749                         goto end;
 750                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 751                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 752                         ah->header->length) != 0))
 753                         {
 754                         BIO_printf(err,"Error reading header on certificate\n");
 755                         goto end;
 756                         }
 757                 /* header is ok, so now read the object */
 758                 p=op;
 759                 ah->meth=X509_asn1_meth();
 760                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 761                         goto end;
 762                 x=(X509 *)ah->data;
 763                 ah->data=NULL;
 764                 }
 765         else if (format == FORMAT_PEM)
 766                 x=PEM_read_bio_X509_AUX(cert,NULL,
 767                         (pem_password_cb *)password_callback, NULL);
 768         else if (format == FORMAT_PKCS12)
 769                 {
 770                 PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);
 771
 772                 PKCS12_parse(p12, NULL, NULL, &x, NULL);
 773                 PKCS12_free(p12);
 774                 p12 = NULL;
 775                 }
 776         else    {
 777                 BIO_printf(err,"bad input format specified for %s\n",
 778                         cert_descrip);
 779                 goto end;
 780                 }
 781 end:
 782         if (x == NULL)
 783                 {
 784                 BIO_printf(err,"unable to load certificate\n");
 785                 ERR_print_errors(err);
 786                 }
 787         if (ah != NULL) ASN1_HEADER_free(ah);
 788         if (cert != NULL) BIO_free(cert);
 789         if (buf != NULL) BUF_MEM_free(buf);
 790         return(x);
 791         }
 792
 793 EVP_PKEY *load_key(BIO *err, const char *file, int format,
 794         const char *pass, ENGINE *e, const char *key_descrip)
 795         {
 796         BIO *key=NULL;
 797         EVP_PKEY *pkey=NULL;
 798         PW_CB_DATA cb_data;
 799
 800         cb_data.password = pass;
 801         cb_data.prompt_info = file;
 802
 803         if (file == NULL)
 804                 {
 805                 BIO_printf(err,"no keyfile specified\n");
 806                 goto end;
 807                 }
 808         if (format == FORMAT_ENGINE)
 809                 {
 810                 if (!e)
 811                         BIO_printf(bio_err,"no engine specified\n");
 812                 else
 813                         pkey = ENGINE_load_private_key(e, file,
 814                                 ui_method, &cb_data);
 815                 goto end;
 816                 }
 817         key=BIO_new(BIO_s_file());
 818         if (key == NULL)
 819                 {
 820                 ERR_print_errors(err);
 821                 goto end;
 822                 }
 823         if (BIO_read_filename(key,file) <= 0)
 824                 {
 825                 BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 826                 ERR_print_errors(err);
 827                 goto end;
 828                 }
 829         if (format == FORMAT_ASN1)
 830                 {
 831                 pkey=d2i_PrivateKey_bio(key, NULL);
 832                 }
 833         else if (format == FORMAT_PEM)
 834                 {
 835                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 836                         (pem_password_cb *)password_callback, &cb_data);
 837                 }
 838 #ifndef OPENSSL_NO_RC4
 839         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 840                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 841 #endif
 842         else if (format == FORMAT_PKCS12)
 843                 {
 844                 PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);
 845
 846                 PKCS12_parse(p12, pass, &pkey, NULL, NULL);
 847                 PKCS12_free(p12);
 848                 p12 = NULL;
 849                 }
 850         else
 851                 {
 852                 BIO_printf(err,"bad input format specified for key file\n");
 853                 goto end;
 854                 }
 855  end:
 856         if (key != NULL) BIO_free(key);
 857         if (pkey == NULL)
 858                 BIO_printf(err,"unable to load %s\n", key_descrip);
 859         return(pkey);
 860         }
 861
 862 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format,
 863         const char *pass, ENGINE *e, const char *key_descrip)
 864         {
 865         BIO *key=NULL;
 866         EVP_PKEY *pkey=NULL;
 867         PW_CB_DATA cb_data;
 868
 869         cb_data.password = pass;
 870         cb_data.prompt_info = file;
 871
 872         if (file == NULL)
 873                 {
 874                 BIO_printf(err,"no keyfile specified\n");
 875                 goto end;
 876                 }
 877         if (format == FORMAT_ENGINE)
 878                 {
 879                 if (!e)
 880                         BIO_printf(bio_err,"no engine specified\n");
 881                 else
 882                         pkey = ENGINE_load_public_key(e, file,
 883                                 ui_method, &cb_data);
 884                 goto end;
 885                 }
 886         key=BIO_new(BIO_s_file());
 887         if (key == NULL)
 888                 {
 889                 ERR_print_errors(err);
 890                 goto end;
 891                 }
 892         if (BIO_read_filename(key,file) <= 0)
 893                 {
 894                 BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 895                 ERR_print_errors(err);
 896                 goto end;
 897                 }
 898         if (format == FORMAT_ASN1)
 899                 {
 900                 pkey=d2i_PUBKEY_bio(key, NULL);
 901                 }
 902         else if (format == FORMAT_PEM)
 903                 {
 904                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 905                         (pem_password_cb *)password_callback, &cb_data);
 906                 }
 907 #ifndef OPENSSL_NO_RC4
 908         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
 909                 pkey = load_netscape_key(err, key, file, key_descrip, format);
 910 #endif
 911         else
 912                 {
 913                 BIO_printf(err,"bad input format specified for key file\n");
 914                 goto end;
 915                 }
 916  end:
 917         if (key != NULL) BIO_free(key);
 918         if (pkey == NULL)
 919                 BIO_printf(err,"unable to load %s\n", key_descrip);
 920         return(pkey);
 921         }
 922
 923 #ifndef OPENSSL_NO_RC4
 924 EVP_PKEY *
 925 load_netscape_key(BIO *err, BIO *key, const char *file,
 926                 const char *key_descrip, int format)
 927         {
 928         EVP_PKEY *pkey;
 929         BUF_MEM *buf;
 930         RSA     *rsa;
 931         const unsigned char *p;
 932         int size, i;
 933
 934         buf=BUF_MEM_new();
 935         pkey = EVP_PKEY_new();
 936         size = 0;
 937         if (buf == NULL || pkey == NULL)
 938                 goto error;
 939         for (;;)
 940                 {
 941                 if (!BUF_MEM_grow(buf,size+1024*10))
 942                         goto error;
 943                 i = BIO_read(key, &(buf->data[size]), 1024*10);
 944                 size += i;
 945                 if (i == 0)
 946                         break;
 947                 if (i < 0)
 948                         {
 949                                 BIO_printf(err, "Error reading %s %s",
 950                                         key_descrip, file);
 951                                 goto error;
 952                         }
 953                 }
 954         p=(unsigned char *)buf->data;
 955         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
 956                 (format == FORMAT_IISSGC ? 1 : 0));
 957         if (rsa == NULL)
 958                 goto error;
 959         BUF_MEM_free(buf);
 960         EVP_PKEY_set1_RSA(pkey, rsa);
 961         return pkey;
 962 error:
 963         BUF_MEM_free(buf);
 964         EVP_PKEY_free(pkey);
 965         return NULL;
 966         }
 967 #endif /* ndef OPENSSL_NO_RC4 */
 968
 969 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
 970         const char *pass, ENGINE *e, const char *cert_descrip)
 971         {
 972         BIO *certs;
 973         int i;
 974         STACK_OF(X509) *othercerts = NULL;
 975         STACK_OF(X509_INFO) *allcerts = NULL;
 976         X509_INFO *xi;
 977         PW_CB_DATA cb_data;
 978
 979         cb_data.password = pass;
 980         cb_data.prompt_info = file;
 981
 982         if((certs = BIO_new(BIO_s_file())) == NULL)
 983                 {
 984                 ERR_print_errors(err);
 985                 goto end;
 986                 }
 987
 988         if (file == NULL)
 989                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
 990         else
 991                 {
 992                 if (BIO_read_filename(certs,file) <= 0)
 993                         {
 994                         BIO_printf(err, "Error opening %s %s\n",
 995                                 cert_descrip, file);
 996                         ERR_print_errors(err);
 997                         goto end;
 998                         }
 999                 }
1000
1001         if      (format == FORMAT_PEM)
1002                 {
1003                 othercerts = sk_X509_new_null();
1004                 if(!othercerts)
1005                         {
1006                         sk_X509_free(othercerts);
1007                         othercerts = NULL;
1008                         goto end;
1009                         }
1010                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1011                                 (pem_password_cb *)password_callback, &cb_data);
1012                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1013                         {
1014                         xi = sk_X509_INFO_value (allcerts, i);
1015                         if (xi->x509)
1016                                 {
1017                                 sk_X509_push(othercerts, xi->x509);
1018                                 xi->x509 = NULL;
1019                                 }
1020                         }
1021                 goto end;
1022                 }
1023         else    {
1024                 BIO_printf(err,"bad input format specified for %s\n",
1025                         cert_descrip);
1026                 goto end;
1027                 }
1028 end:
1029         if (othercerts == NULL)
1030                 {
1031                 BIO_printf(err,"unable to load certificates\n");
1032                 ERR_print_errors(err);
1033                 }
1034         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1035         if (certs != NULL) BIO_free(certs);
1036         return(othercerts);
1037         }
1038
1039
1040 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1041 /* Return error for unknown extensions */
1042 #define X509V3_EXT_DEFAULT              0
1043 /* Print error for unknown extensions */
1044 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1045 /* ASN1 parse unknown extensions */
1046 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1047 /* BIO_dump unknown extensions */
1048 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1049
1050 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1051                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1052
1053 int set_cert_ex(unsigned long *flags, const char *arg)
1054 {
1055         static const NAME_EX_TBL cert_tbl[] = {
1056                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1057                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1058                 { "no_header", X509_FLAG_NO_HEADER, 0},
1059                 { "no_version", X509_FLAG_NO_VERSION, 0},
1060                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1061                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1062                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1063                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1064                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1065                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1066                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1067                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1068                 { "no_aux", X509_FLAG_NO_AUX, 0},
1069                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1070                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1071                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1072                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1073                 { NULL, 0, 0}
1074         };
1075         return set_multi_opts(flags, arg, cert_tbl);
1076 }
1077
1078 int set_name_ex(unsigned long *flags, const char *arg)
1079 {
1080         static const NAME_EX_TBL ex_tbl[] = {
1081                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1082                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1083                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1084                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1085                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1086                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1087                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1088                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1089                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1090                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1091                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1092                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1093                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1094                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1095                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1096                 { "dn_rev", XN_FLAG_DN_REV, 0},
1097                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1098                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1099                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1100                 { "align", XN_FLAG_FN_ALIGN, 0},
1101                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1102                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1103                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1104                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1105                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1106                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1107                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1108                 { NULL, 0, 0}
1109         };
1110         return set_multi_opts(flags, arg, ex_tbl);
1111 }
1112
1113 int set_ext_copy(int *copy_type, const char *arg)
1114 {
1115         if (!strcasecmp(arg, "none"))
1116                 *copy_type = EXT_COPY_NONE;
1117         else if (!strcasecmp(arg, "copy"))
1118                 *copy_type = EXT_COPY_ADD;
1119         else if (!strcasecmp(arg, "copyall"))
1120                 *copy_type = EXT_COPY_ALL;
1121         else
1122                 return 0;
1123         return 1;
1124 }
1125
1126 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1127 {
1128         STACK_OF(X509_EXTENSION) *exts = NULL;
1129         X509_EXTENSION *ext, *tmpext;
1130         ASN1_OBJECT *obj;
1131         int i, idx, ret = 0;
1132         if (!x || !req || (copy_type == EXT_COPY_NONE))
1133                 return 1;
1134         exts = X509_REQ_get_extensions(req);
1135
1136         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1137                 ext = sk_X509_EXTENSION_value(exts, i);
1138                 obj = X509_EXTENSION_get_object(ext);
1139                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1140                 /* Does extension exist? */
1141                 if (idx != -1) {
1142                         /* If normal copy don't override existing extension */
1143                         if (copy_type == EXT_COPY_ADD)
1144                                 continue;
1145                         /* Delete all extensions of same type */
1146                         do {
1147                                 tmpext = X509_get_ext(x, idx);
1148                                 X509_delete_ext(x, idx);
1149                                 X509_EXTENSION_free(tmpext);
1150                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1151                         } while (idx != -1);
1152                 }
1153                 if (!X509_add_ext(x, ext, -1))
1154                         goto end;
1155         }
1156
1157         ret = 1;
1158
1159         end:
1160
1161         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1162
1163         return ret;
1164 }
1165
1166
1167
1168
1169 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1170 {
1171         STACK_OF(CONF_VALUE) *vals;
1172         CONF_VALUE *val;
1173         int i, ret = 1;
1174         if(!arg) return 0;
1175         vals = X509V3_parse_list(arg);
1176         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1177                 val = sk_CONF_VALUE_value(vals, i);
1178                 if (!set_table_opts(flags, val->name, in_tbl))
1179                         ret = 0;
1180         }
1181         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1182         return ret;
1183 }
1184
1185 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1186 {
1187         char c;
1188         const NAME_EX_TBL *ptbl;
1189         c = arg[0];
1190
1191         if(c == '-') {
1192                 c = 0;
1193                 arg++;
1194         } else if (c == '+') {
1195                 c = 1;
1196                 arg++;
1197         } else c = 1;
1198
1199         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1200                 if(!strcasecmp(arg, ptbl->name)) {
1201                         *flags &= ~ptbl->mask;
1202                         if(c) *flags |= ptbl->flag;
1203                         else *flags &= ~ptbl->flag;
1204                         return 1;
1205                 }
1206         }
1207         return 0;
1208 }
1209
1210 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
1211 {
1212         char buf[256];
1213         char mline = 0;
1214         int indent = 0;
1215         if(title) BIO_puts(out, title);
1216         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1217                 mline = 1;
1218                 indent = 4;
1219         }
1220         if(lflags == XN_FLAG_COMPAT) {
1221                 X509_NAME_oneline(nm,buf,256);
1222                 BIO_puts(out,buf);
1223                 BIO_puts(out, "\n");
1224         } else {
1225                 if(mline) BIO_puts(out, "\n");
1226                 X509_NAME_print_ex(out, nm, indent, lflags);
1227                 BIO_puts(out, "\n");
1228         }
1229 }
1230
1231 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1232 {
1233         X509_STORE *store;
1234         X509_LOOKUP *lookup;
1235         if(!(store = X509_STORE_new())) goto end;
1236         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1237         if (lookup == NULL) goto end;
1238         if (CAfile) {
1239                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1240                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1241                         goto end;
1242                 }
1243         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1244
1245         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1246         if (lookup == NULL) goto end;
1247         if (CApath) {
1248                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1249                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1250                         goto end;
1251                 }
1252         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1253
1254         ERR_clear_error();
1255         return store;
1256         end:
1257         X509_STORE_free(store);
1258         return NULL;
1259 }
1260
1261 /* Try to load an engine in a shareable library */
1262 ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1263         {
1264         ENGINE *e = ENGINE_by_id("dynamic");
1265         if (e)
1266                 {
1267                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1268                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1269                         {
1270                         ENGINE_free(e);
1271                         e = NULL;
1272                         }
1273                 }
1274         return e;
1275         }
1276
1277 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1278         {
1279         ENGINE *e = NULL;
1280
1281         if (engine)
1282                 {
1283                 if(strcmp(engine, "auto") == 0)
1284                         {
1285                         BIO_printf(err,"enabling auto ENGINE support\n");
1286                         ENGINE_register_all_complete();
1287                         return NULL;
1288                         }
1289                 if((e = ENGINE_by_id(engine)) == NULL
1290                         && (e = try_load_engine(err, engine, debug)) == NULL)
1291                         {
1292                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1293                         ERR_print_errors(err);
1294                         return NULL;
1295                         }
1296                 if (debug)
1297                         {
1298                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1299                                 0, err, 0);
1300                         }
1301                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1302                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1303                         {
1304                         BIO_printf(err,"can't use that engine\n");
1305                         ERR_print_errors(err);
1306                         ENGINE_free(e);
1307                         return NULL;
1308                         }
1309
1310                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1311
1312                 /* Free our "structural" reference. */
1313                 ENGINE_free(e);
1314                 }
1315         return e;
1316         }
1317
1318 int load_config(BIO *err, CONF *cnf)
1319         {
1320         if (!cnf)
1321                 cnf = config;
1322         if (!cnf)
1323                 return 1;
1324
1325         OPENSSL_load_builtin_modules();
1326
1327         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1328                 {
1329                 BIO_printf(err, "Error configuring OpenSSL\n");
1330                 ERR_print_errors(err);
1331                 return 0;
1332                 }
1333         return 1;
1334         }