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 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64 #define NON_MAIN
  65 #include "apps.h"
  66 #undef NON_MAIN
  67 #include <openssl/err.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/x509v3.h>
  70 #include <openssl/pem.h>
  71 #include <openssl/pkcs12.h>
  72 #include <openssl/ui.h>
  73 #include <openssl/safestack.h>
  74
  75 #ifdef OPENSSL_SYS_WINDOWS
  76 #define strcasecmp _stricmp
  77 #else
  78 #include <strings.h>
  79 #endif
  80
  81 #ifdef OPENSSL_SYS_WINDOWS
  82 #  include "bss_file.c"
  83 #endif
  84
  85 typedef struct {
  86         char *name;
  87         unsigned long flag;
  88         unsigned long mask;
  89 } NAME_EX_TBL;
  90
  91 static UI_METHOD *ui_method = NULL;
  92
  93 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
  94 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
  95
  96 int app_init(long mesgwin);
  97 #ifdef undef /* never finished - probably never will be :-) */
  98 int args_from_file(char *file, int *argc, char **argv[])
  99         {
 100         FILE *fp;
 101         int num,i;
 102         unsigned int len;
 103         static char *buf=NULL;
 104         static char **arg=NULL;
 105         char *p;
 106         struct stat stbuf;
 107
 108         if (stat(file,&stbuf) < 0) return(0);
 109
 110         fp=fopen(file,"r");
 111         if (fp == NULL)
 112                 return(0);
 113
 114         *argc=0;
 115         *argv=NULL;
 116
 117         len=(unsigned int)stbuf.st_size;
 118         if (buf != NULL) OPENSSL_free(buf);
 119         buf=(char *)OPENSSL_malloc(len+1);
 120         if (buf == NULL) return(0);
 121
 122         len=fread(buf,1,len,fp);
 123         if (len <= 1) return(0);
 124         buf[len]='\0';
 125
 126         i=0;
 127         for (p=buf; *p; p++)
 128                 if (*p == '\n') i++;
 129         if (arg != NULL) OPENSSL_free(arg);
 130         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 131
 132         *argv=arg;
 133         num=0;
 134         p=buf;
 135         for (;;)
 136                 {
 137                 if (!*p) break;
 138                 if (*p == '#') /* comment line */
 139                         {
 140                         while (*p && (*p != '\n')) p++;
 141                         continue;
 142                         }
 143                 /* else we have a line */
 144                 *(arg++)=p;
 145                 num++;
 146                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 147                         p++;
 148                 if (!*p) break;
 149                 if (*p == '\n')
 150                         {
 151                         *(p++)='\0';
 152                         continue;
 153                         }
 154                 /* else it is a tab or space */
 155                 p++;
 156                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 157                         p++;
 158                 if (!*p) break;
 159                 if (*p == '\n')
 160                         {
 161                         p++;
 162                         continue;
 163                         }
 164                 *(arg++)=p++;
 165                 num++;
 166                 while (*p && (*p != '\n')) p++;
 167                 if (!*p) break;
 168                 /* else *p == '\n' */
 169                 *(p++)='\0';
 170                 }
 171         *argc=num;
 172         return(1);
 173         }
 174 #endif
 175
 176 int str2fmt(char *s)
 177         {
 178         if      ((*s == 'D') || (*s == 'd'))
 179                 return(FORMAT_ASN1);
 180         else if ((*s == 'T') || (*s == 't'))
 181                 return(FORMAT_TEXT);
 182         else if ((*s == 'P') || (*s == 'p'))
 183                 return(FORMAT_PEM);
 184         else if ((*s == 'N') || (*s == 'n'))
 185                 return(FORMAT_NETSCAPE);
 186         else if ((*s == 'S') || (*s == 's'))
 187                 return(FORMAT_SMIME);
 188         else if ((*s == '1')
 189                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 190                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 191                 return(FORMAT_PKCS12);
 192         else if ((*s == 'E') || (*s == 'e'))
 193                 return(FORMAT_ENGINE);
 194         else
 195                 return(FORMAT_UNDEF);
 196         }
 197
 198 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
 199 void program_name(char *in, char *out, int size)
 200         {
 201         int i,n;
 202         char *p=NULL;
 203
 204         n=strlen(in);
 205         /* find the last '/', '\' or ':' */
 206         for (i=n-1; i>0; i--)
 207                 {
 208                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 209                         {
 210                         p= &(in[i+1]);
 211                         break;
 212                         }
 213                 }
 214         if (p == NULL)
 215                 p=in;
 216         n=strlen(p);
 217         /* strip off trailing .exe if present. */
 218         if ((n > 4) && (p[n-4] == '.') &&
 219                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 220                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 221                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 222                 n-=4;
 223         if (n > size-1)
 224                 n=size-1;
 225
 226         for (i=0; i<n; i++)
 227                 {
 228                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 229                         out[i]=p[i]-'A'+'a';
 230                 else
 231                         out[i]=p[i];
 232                 }
 233         out[n]='\0';
 234         }
 235 #else
 236 #ifdef OPENSSL_SYS_VMS
 237 void program_name(char *in, char *out, int size)
 238         {
 239         char *p=in, *q;
 240         char *chars=":]>";
 241
 242         while(*chars != '\0')
 243                 {
 244                 q=strrchr(p,*chars);
 245                 if (q > p)
 246                         p = q + 1;
 247                 chars++;
 248                 }
 249
 250         q=strrchr(p,'.');
 251         if (q == NULL)
 252                 q = in+size;
 253         strncpy(out,p,q-p);
 254         out[q-p]='\0';
 255         }
 256 #else
 257 void program_name(char *in, char *out, int size)
 258         {
 259         char *p;
 260
 261         p=strrchr(in,'/');
 262         if (p != NULL)
 263                 p++;
 264         else
 265                 p=in;
 266         strncpy(out,p,size-1);
 267         out[size-1]='\0';
 268         }
 269 #endif
 270 #endif
 271
 272 #ifdef OPENSSL_SYS_WIN32
 273 int WIN32_rename(char *from, char *to)
 274         {
 275 #ifdef OPENSSL_SYS_WINNT
 276         int ret;
 277 /* Note: MoveFileEx() doesn't work under Win95, Win98 */
 278
 279         ret=MoveFileEx(from,to,MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED);
 280         return(ret?0:-1);
 281 #else
 282         unlink(to);
 283         return MoveFile(from, to);
 284 #endif
 285         }
 286 #endif
 287
 288 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 289         {
 290         int num,len,i;
 291         char *p;
 292
 293         *argc=0;
 294         *argv=NULL;
 295
 296         len=strlen(buf);
 297         i=0;
 298         if (arg->count == 0)
 299                 {
 300                 arg->count=20;
 301                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 302                 }
 303         for (i=0; i<arg->count; i++)
 304                 arg->data[i]=NULL;
 305
 306         num=0;
 307         p=buf;
 308         for (;;)
 309                 {
 310                 /* first scan over white space */
 311                 if (!*p) break;
 312                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 313                         p++;
 314                 if (!*p) break;
 315
 316                 /* The start of something good :-) */
 317                 if (num >= arg->count)
 318                         {
 319                         arg->count+=20;
 320                         arg->data=(char **)OPENSSL_realloc(arg->data,
 321                                 sizeof(char *)*arg->count);
 322                         if (argc == 0) return(0);
 323                         }
 324                 arg->data[num++]=p;
 325
 326                 /* now look for the end of this */
 327                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 328                         {
 329                         i= *(p++);
 330                         arg->data[num-1]++; /* jump over quote */
 331                         while (*p && (*p != i))
 332                                 p++;
 333                         *p='\0';
 334                         }
 335                 else
 336                         {
 337                         while (*p && ((*p != ' ') &&
 338                                 (*p != '\t') && (*p != '\n')))
 339                                 p++;
 340
 341                         if (*p == '\0')
 342                                 p--;
 343                         else
 344                                 *p='\0';
 345                         }
 346                 p++;
 347                 }
 348         *argc=num;
 349         *argv=arg->data;
 350         return(1);
 351         }
 352
 353 #ifndef APP_INIT
 354 int app_init(long mesgwin)
 355         {
 356         return(1);
 357         }
 358 #endif
 359
 360
 361 int dump_cert_text (BIO *out, X509 *x)
 362 {
 363         char buf[256];
 364         X509_NAME_oneline(X509_get_subject_name(x),buf,256);
 365         BIO_puts(out,"subject=");
 366         BIO_puts(out,buf);
 367
 368         X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
 369         BIO_puts(out,"\nissuer= ");
 370         BIO_puts(out,buf);
 371         BIO_puts(out,"\n");
 372         return 0;
 373 }
 374
 375 static int ui_open(UI *ui)
 376         {
 377         return UI_method_get_opener(UI_OpenSSL())(ui);
 378         }
 379 static int ui_read(UI *ui, UI_STRING *uis)
 380         {
 381         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 382                 && UI_get0_user_data(ui))
 383                 {
 384                 switch(UI_get_string_type(uis))
 385                         {
 386                 case UIT_PROMPT:
 387                 case UIT_VERIFY:
 388                         {
 389                         const char *password =
 390                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 391                         if (password[0] != '\0')
 392                                 {
 393                                 UI_set_result(ui, uis, password);
 394                                 return 1;
 395                                 }
 396                         }
 397                 default:
 398                         break;
 399                         }
 400                 }
 401         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
 402         }
 403 static int ui_write(UI *ui, UI_STRING *uis)
 404         {
 405         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
 406                 && UI_get0_user_data(ui))
 407                 {
 408                 switch(UI_get_string_type(uis))
 409                         {
 410                 case UIT_PROMPT:
 411                 case UIT_VERIFY:
 412                         {
 413                         const char *password =
 414                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
 415                         if (password[0] != '\0')
 416                                 return 1;
 417                         }
 418                 default:
 419                         break;
 420                         }
 421                 }
 422         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
 423         }
 424 static int ui_close(UI *ui)
 425         {
 426         return UI_method_get_closer(UI_OpenSSL())(ui);
 427         }
 428 int setup_ui_method()
 429         {
 430         ui_method = UI_create_method("OpenSSL application user interface");
 431         UI_method_set_opener(ui_method, ui_open);
 432         UI_method_set_reader(ui_method, ui_read);
 433         UI_method_set_writer(ui_method, ui_write);
 434         UI_method_set_closer(ui_method, ui_close);
 435         return 0;
 436         }
 437 void destroy_ui_method()
 438         {
 439         if(ui_method)
 440                 {
 441                 UI_destroy_method(ui_method);
 442                 ui_method = NULL;
 443                 }
 444         }
 445 int password_callback(char *buf, int bufsiz, int verify,
 446         PW_CB_DATA *cb_tmp)
 447         {
 448         UI *ui = NULL;
 449         int res = 0;
 450         const char *prompt_info = NULL;
 451         const char *password = NULL;
 452         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
 453
 454         if (cb_data)
 455                 {
 456                 if (cb_data->password)
 457                         password = cb_data->password;
 458                 if (cb_data->prompt_info)
 459                         prompt_info = cb_data->prompt_info;
 460                 }
 461
 462         if (password)
 463                 {
 464                 res = strlen(password);
 465                 if (res > bufsiz)
 466                         res = bufsiz;
 467                 memcpy(buf, password, res);
 468                 return res;
 469                 }
 470
 471         ui = UI_new_method(ui_method);
 472         if (ui)
 473                 {
 474                 int ok = 0;
 475                 char *buff = NULL;
 476                 int ui_flags = 0;
 477                 char *prompt = NULL;
 478
 479                 prompt = UI_construct_prompt(ui, "pass phrase",
 480                         cb_data->prompt_info);
 481
 482                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
 483                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
 484
 485                 if (ok >= 0)
 486                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
 487                                 PW_MIN_LENGTH,BUFSIZ-1);
 488                 if (ok >= 0 && verify)
 489                         {
 490                         buff = (char *)OPENSSL_malloc(bufsiz);
 491                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
 492                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
 493                         }
 494                 if (ok >= 0)
 495                         do
 496                                 {
 497                                 ok = UI_process(ui);
 498                                 }
 499                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
 500
 501                 if (buff)
 502                         {
 503                         memset(buff,0,(unsigned int)bufsiz);
 504                         OPENSSL_free(buff);
 505                         }
 506
 507                 if (ok >= 0)
 508                         res = strlen(buf);
 509                 if (ok == -1)
 510                         {
 511                         BIO_printf(bio_err, "User interface error\n");
 512                         ERR_print_errors(bio_err);
 513                         memset(buf,0,(unsigned int)bufsiz);
 514                         res = 0;
 515                         }
 516                 if (ok == -2)
 517                         {
 518                         BIO_printf(bio_err,"aborted!\n");
 519                         memset(buf,0,(unsigned int)bufsiz);
 520                         res = 0;
 521                         }
 522                 UI_free(ui);
 523                 OPENSSL_free(prompt);
 524                 }
 525         return res;
 526         }
 527
 528 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 529
 530 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 531 {
 532         int same;
 533         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 534         else same = 1;
 535         if(arg1) {
 536                 *pass1 = app_get_pass(err, arg1, same);
 537                 if(!*pass1) return 0;
 538         } else if(pass1) *pass1 = NULL;
 539         if(arg2) {
 540                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 541                 if(!*pass2) return 0;
 542         } else if(pass2) *pass2 = NULL;
 543         return 1;
 544 }
 545
 546 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 547 {
 548         char *tmp, tpass[APP_PASS_LEN];
 549         static BIO *pwdbio = NULL;
 550         int i;
 551         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 552         if(!strncmp(arg, "env:", 4)) {
 553                 tmp = getenv(arg + 4);
 554                 if(!tmp) {
 555                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 556                         return NULL;
 557                 }
 558                 return BUF_strdup(tmp);
 559         }
 560         if(!keepbio || !pwdbio) {
 561                 if(!strncmp(arg, "file:", 5)) {
 562                         pwdbio = BIO_new_file(arg + 5, "r");
 563                         if(!pwdbio) {
 564                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 565                                 return NULL;
 566                         }
 567                 } else if(!strncmp(arg, "fd:", 3)) {
 568                         BIO *btmp;
 569                         i = atoi(arg + 3);
 570                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 571                         if((i < 0) || !pwdbio) {
 572                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 573                                 return NULL;
 574                         }
 575                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 576                         btmp = BIO_new(BIO_f_buffer());
 577                         pwdbio = BIO_push(btmp, pwdbio);
 578                 } else if(!strcmp(arg, "stdin")) {
 579                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 580                         if(!pwdbio) {
 581                                 BIO_printf(err, "Can't open BIO for stdin\n");
 582                                 return NULL;
 583                         }
 584                 } else {
 585                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 586                         return NULL;
 587                 }
 588         }
 589         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 590         if(keepbio != 1) {
 591                 BIO_free_all(pwdbio);
 592                 pwdbio = NULL;
 593         }
 594         if(i <= 0) {
 595                 BIO_printf(err, "Error reading password from BIO\n");
 596                 return NULL;
 597         }
 598         tmp = strchr(tpass, '\n');
 599         if(tmp) *tmp = 0;
 600         return BUF_strdup(tpass);
 601 }
 602
 603 int add_oid_section(BIO *err, CONF *conf)
 604 {
 605         char *p;
 606         STACK_OF(CONF_VALUE) *sktmp;
 607         CONF_VALUE *cnf;
 608         int i;
 609         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
 610                 {
 611                 ERR_clear_error();
 612                 return 1;
 613                 }
 614         if(!(sktmp = NCONF_get_section(conf, p))) {
 615                 BIO_printf(err, "problem loading oid section %s\n", p);
 616                 return 0;
 617         }
 618         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 619                 cnf = sk_CONF_VALUE_value(sktmp, i);
 620                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 621                         BIO_printf(err, "problem creating object %s=%s\n",
 622                                                          cnf->name, cnf->value);
 623                         return 0;
 624                 }
 625         }
 626         return 1;
 627 }
 628
 629 X509 *load_cert(BIO *err, const char *file, int format,
 630         const char *pass, ENGINE *e, const char *cert_descrip)
 631         {
 632         ASN1_HEADER *ah=NULL;
 633         BUF_MEM *buf=NULL;
 634         X509 *x=NULL;
 635         BIO *cert;
 636
 637         if ((cert=BIO_new(BIO_s_file())) == NULL)
 638                 {
 639                 ERR_print_errors(err);
 640                 goto end;
 641                 }
 642
 643         if (file == NULL)
 644                 {
 645                 setvbuf(stdin, NULL, _IONBF, 0);
 646                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 647                 }
 648         else
 649                 {
 650                 if (BIO_read_filename(cert,file) <= 0)
 651                         {
 652                         BIO_printf(err, "Error opening %s %s\n",
 653                                 cert_descrip, file);
 654                         ERR_print_errors(err);
 655                         goto end;
 656                         }
 657                 }
 658
 659         if      (format == FORMAT_ASN1)
 660                 x=d2i_X509_bio(cert,NULL);
 661         else if (format == FORMAT_NETSCAPE)
 662                 {
 663                 unsigned char *p,*op;
 664                 int size=0,i;
 665
 666                 /* We sort of have to do it this way because it is sort of nice
 667                  * to read the header first and check it, then
 668                  * try to read the certificate */
 669                 buf=BUF_MEM_new();
 670                 for (;;)
 671                         {
 672                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 673                                 goto end;
 674                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 675                         size+=i;
 676                         if (i == 0) break;
 677                         if (i < 0)
 678                                 {
 679                                 perror("reading certificate");
 680                                 goto end;
 681                                 }
 682                         }
 683                 p=(unsigned char *)buf->data;
 684                 op=p;
 685
 686                 /* First load the header */
 687                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 688                         goto end;
 689                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 690                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 691                         ah->header->length) != 0))
 692                         {
 693                         BIO_printf(err,"Error reading header on certificate\n");
 694                         goto end;
 695                         }
 696                 /* header is ok, so now read the object */
 697                 p=op;
 698                 ah->meth=X509_asn1_meth();
 699                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 700                         goto end;
 701                 x=(X509 *)ah->data;
 702                 ah->data=NULL;
 703                 }
 704         else if (format == FORMAT_PEM)
 705                 x=PEM_read_bio_X509_AUX(cert,NULL,
 706                         (pem_password_cb *)password_callback, NULL);
 707         else if (format == FORMAT_PKCS12)
 708                 {
 709                 PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);
 710
 711                 PKCS12_parse(p12, NULL, NULL, &x, NULL);
 712                 PKCS12_free(p12);
 713                 p12 = NULL;
 714                 }
 715         else    {
 716                 BIO_printf(err,"bad input format specified for %s\n",
 717                         cert_descrip);
 718                 goto end;
 719                 }
 720 end:
 721         if (x == NULL)
 722                 {
 723                 BIO_printf(err,"unable to load certificate\n");
 724                 ERR_print_errors(err);
 725                 }
 726         if (ah != NULL) ASN1_HEADER_free(ah);
 727         if (cert != NULL) BIO_free(cert);
 728         if (buf != NULL) BUF_MEM_free(buf);
 729         return(x);
 730         }
 731
 732 EVP_PKEY *load_key(BIO *err, const char *file, int format,
 733         const char *pass, ENGINE *e, const char *key_descrip)
 734         {
 735         BIO *key=NULL;
 736         EVP_PKEY *pkey=NULL;
 737         PW_CB_DATA cb_data;
 738
 739         cb_data.password = pass;
 740         cb_data.prompt_info = file;
 741
 742         if (file == NULL)
 743                 {
 744                 BIO_printf(err,"no keyfile specified\n");
 745                 goto end;
 746                 }
 747         if (format == FORMAT_ENGINE)
 748                 {
 749                 if (!e)
 750                         BIO_printf(bio_err,"no engine specified\n");
 751                 else
 752                         pkey = ENGINE_load_private_key(e, file,
 753                                 ui_method, &cb_data);
 754                 goto end;
 755                 }
 756         key=BIO_new(BIO_s_file());
 757         if (key == NULL)
 758                 {
 759                 ERR_print_errors(err);
 760                 goto end;
 761                 }
 762         if (BIO_read_filename(key,file) <= 0)
 763                 {
 764                 BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 765                 ERR_print_errors(err);
 766                 goto end;
 767                 }
 768         if (format == FORMAT_ASN1)
 769                 {
 770                 pkey=d2i_PrivateKey_bio(key, NULL);
 771                 }
 772         else if (format == FORMAT_PEM)
 773                 {
 774                 pkey=PEM_read_bio_PrivateKey(key,NULL,
 775                         (pem_password_cb *)password_callback, &cb_data);
 776                 }
 777         else if (format == FORMAT_PKCS12)
 778                 {
 779                 PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);
 780
 781                 PKCS12_parse(p12, pass, &pkey, NULL, NULL);
 782                 PKCS12_free(p12);
 783                 p12 = NULL;
 784                 }
 785         else
 786                 {
 787                 BIO_printf(err,"bad input format specified for key file\n");
 788                 goto end;
 789                 }
 790  end:
 791         if (key != NULL) BIO_free(key);
 792         if (pkey == NULL)
 793                 BIO_printf(err,"unable to load %s\n", key_descrip);
 794         return(pkey);
 795         }
 796
 797 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format,
 798         const char *pass, ENGINE *e, const char *key_descrip)
 799         {
 800         BIO *key=NULL;
 801         EVP_PKEY *pkey=NULL;
 802         PW_CB_DATA cb_data;
 803
 804         cb_data.password = pass;
 805         cb_data.prompt_info = file;
 806
 807         if (file == NULL)
 808                 {
 809                 BIO_printf(err,"no keyfile specified\n");
 810                 goto end;
 811                 }
 812         if (format == FORMAT_ENGINE)
 813                 {
 814                 if (!e)
 815                         BIO_printf(bio_err,"no engine specified\n");
 816                 else
 817                         pkey = ENGINE_load_public_key(e, file,
 818                                 ui_method, &cb_data);
 819                 goto end;
 820                 }
 821         key=BIO_new(BIO_s_file());
 822         if (key == NULL)
 823                 {
 824                 ERR_print_errors(err);
 825                 goto end;
 826                 }
 827         if (BIO_read_filename(key,file) <= 0)
 828                 {
 829                 BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
 830                 ERR_print_errors(err);
 831                 goto end;
 832                 }
 833         if (format == FORMAT_ASN1)
 834                 {
 835                 pkey=d2i_PUBKEY_bio(key, NULL);
 836                 }
 837         else if (format == FORMAT_PEM)
 838                 {
 839                 pkey=PEM_read_bio_PUBKEY(key,NULL,
 840                         (pem_password_cb *)password_callback, &cb_data);
 841                 }
 842         else
 843                 {
 844                 BIO_printf(err,"bad input format specified for key file\n");
 845                 goto end;
 846                 }
 847  end:
 848         if (key != NULL) BIO_free(key);
 849         if (pkey == NULL)
 850                 BIO_printf(err,"unable to load %s\n", key_descrip);
 851         return(pkey);
 852         }
 853
 854 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
 855         const char *pass, ENGINE *e, const char *cert_descrip)
 856         {
 857         BIO *certs;
 858         int i;
 859         STACK_OF(X509) *othercerts = NULL;
 860         STACK_OF(X509_INFO) *allcerts = NULL;
 861         X509_INFO *xi;
 862         PW_CB_DATA cb_data;
 863
 864         cb_data.password = pass;
 865         cb_data.prompt_info = file;
 866
 867         if((certs = BIO_new(BIO_s_file())) == NULL)
 868                 {
 869                 ERR_print_errors(err);
 870                 goto end;
 871                 }
 872
 873         if (file == NULL)
 874                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
 875         else
 876                 {
 877                 if (BIO_read_filename(certs,file) <= 0)
 878                         {
 879                         BIO_printf(err, "Error opening %s %s\n",
 880                                 cert_descrip, file);
 881                         ERR_print_errors(err);
 882                         goto end;
 883                         }
 884                 }
 885
 886         if      (format == FORMAT_PEM)
 887                 {
 888                 othercerts = sk_X509_new_null();
 889                 if(!othercerts)
 890                         {
 891                         sk_X509_free(othercerts);
 892                         othercerts = NULL;
 893                         goto end;
 894                         }
 895                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
 896                                 (pem_password_cb *)password_callback, &cb_data);
 897                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
 898                         {
 899                         xi = sk_X509_INFO_value (allcerts, i);
 900                         if (xi->x509)
 901                                 {
 902                                 sk_X509_push(othercerts, xi->x509);
 903                                 xi->x509 = NULL;
 904                                 }
 905                         }
 906                 goto end;
 907                 }
 908         else    {
 909                 BIO_printf(err,"bad input format specified for %s\n",
 910                         cert_descrip);
 911                 goto end;
 912                 }
 913 end:
 914         if (othercerts == NULL)
 915                 {
 916                 BIO_printf(err,"unable to load certificates\n");
 917                 ERR_print_errors(err);
 918                 }
 919         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
 920         if (certs != NULL) BIO_free(certs);
 921         return(othercerts);
 922         }
 923
 924
 925 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
 926 /* Return error for unknown extensions */
 927 #define X509V3_EXT_DEFAULT              0
 928 /* Print error for unknown extensions */
 929 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
 930 /* ASN1 parse unknown extensions */
 931 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
 932 /* BIO_dump unknown extensions */
 933 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
 934
 935 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
 936                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
 937
 938 int set_cert_ex(unsigned long *flags, const char *arg)
 939 {
 940         static const NAME_EX_TBL cert_tbl[] = {
 941                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
 942                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
 943                 { "no_header", X509_FLAG_NO_HEADER, 0},
 944                 { "no_version", X509_FLAG_NO_VERSION, 0},
 945                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
 946                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
 947                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
 948                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
 949                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
 950                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
 951                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
 952                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
 953                 { "no_aux", X509_FLAG_NO_AUX, 0},
 954                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
 955                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 956                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 957                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 958                 { NULL, 0, 0}
 959         };
 960         return set_multi_opts(flags, arg, cert_tbl);
 961 }
 962
 963 int set_name_ex(unsigned long *flags, const char *arg)
 964 {
 965         static const NAME_EX_TBL ex_tbl[] = {
 966                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
 967                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
 968                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
 969                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
 970                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
 971                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
 972                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
 973                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
 974                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
 975                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
 976                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
 977                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
 978                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
 979                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
 980                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
 981                 { "dn_rev", XN_FLAG_DN_REV, 0},
 982                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
 983                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
 984                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
 985                 { "align", XN_FLAG_FN_ALIGN, 0},
 986                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
 987                 { "space_eq", XN_FLAG_SPC_EQ, 0},
 988                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
 989                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
 990                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
 991                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
 992                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
 993                 { NULL, 0, 0}
 994         };
 995         return set_multi_opts(flags, arg, ex_tbl);
 996 }
 997
 998 int set_ext_copy(int *copy_type, const char *arg)
 999 {
1000         if (!strcasecmp(arg, "none"))
1001                 *copy_type = EXT_COPY_NONE;
1002         else if (!strcasecmp(arg, "copy"))
1003                 *copy_type = EXT_COPY_ADD;
1004         else if (!strcasecmp(arg, "copyall"))
1005                 *copy_type = EXT_COPY_ALL;
1006         else
1007                 return 0;
1008         return 1;
1009 }
1010
1011 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1012 {
1013         STACK_OF(X509_EXTENSION) *exts = NULL;
1014         X509_EXTENSION *ext, *tmpext;
1015         ASN1_OBJECT *obj;
1016         int i, idx, ret = 0;
1017         if (!x || !req || (copy_type == EXT_COPY_NONE))
1018                 return 1;
1019         exts = X509_REQ_get_extensions(req);
1020
1021         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1022                 ext = sk_X509_EXTENSION_value(exts, i);
1023                 obj = X509_EXTENSION_get_object(ext);
1024                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1025                 /* Does extension exist? */
1026                 if (idx != -1) {
1027                         /* If normal copy don't override existing extension */
1028                         if (copy_type == EXT_COPY_ADD)
1029                                 continue;
1030                         /* Delete all extensions of same type */
1031                         do {
1032                                 tmpext = X509_get_ext(x, idx);
1033                                 X509_delete_ext(x, idx);
1034                                 X509_EXTENSION_free(tmpext);
1035                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1036                         } while (idx != -1);
1037                 }
1038                 if (!X509_add_ext(x, ext, -1))
1039                         goto end;
1040         }
1041
1042         ret = 1;
1043
1044         end:
1045
1046         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1047
1048         return ret;
1049 }
1050
1051
1052
1053
1054 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1055 {
1056         STACK_OF(CONF_VALUE) *vals;
1057         CONF_VALUE *val;
1058         int i, ret = 1;
1059         if(!arg) return 0;
1060         vals = X509V3_parse_list(arg);
1061         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1062                 val = sk_CONF_VALUE_value(vals, i);
1063                 if (!set_table_opts(flags, val->name, in_tbl))
1064                         ret = 0;
1065         }
1066         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1067         return ret;
1068 }
1069
1070 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1071 {
1072         char c;
1073         const NAME_EX_TBL *ptbl;
1074         c = arg[0];
1075
1076         if(c == '-') {
1077                 c = 0;
1078                 arg++;
1079         } else if (c == '+') {
1080                 c = 1;
1081                 arg++;
1082         } else c = 1;
1083
1084         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1085                 if(!strcasecmp(arg, ptbl->name)) {
1086                         *flags &= ~ptbl->mask;
1087                         if(c) *flags |= ptbl->flag;
1088                         else *flags &= ~ptbl->flag;
1089                         return 1;
1090                 }
1091         }
1092         return 0;
1093 }
1094
1095 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
1096 {
1097         char buf[256];
1098         char mline = 0;
1099         int indent = 0;
1100         if(title) BIO_puts(out, title);
1101         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1102                 mline = 1;
1103                 indent = 4;
1104         }
1105         if(lflags == XN_FLAG_COMPAT) {
1106                 X509_NAME_oneline(nm,buf,256);
1107                 BIO_puts(out,buf);
1108                 BIO_puts(out, "\n");
1109         } else {
1110                 if(mline) BIO_puts(out, "\n");
1111                 X509_NAME_print_ex(out, nm, indent, lflags);
1112                 BIO_puts(out, "\n");
1113         }
1114 }
1115
1116 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1117 {
1118         X509_STORE *store;
1119         X509_LOOKUP *lookup;
1120         if(!(store = X509_STORE_new())) goto end;
1121         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1122         if (lookup == NULL) goto end;
1123         if (CAfile) {
1124                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1125                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1126                         goto end;
1127                 }
1128         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1129
1130         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1131         if (lookup == NULL) goto end;
1132         if (CApath) {
1133                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1134                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1135                         goto end;
1136                 }
1137         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1138
1139         ERR_clear_error();
1140         return store;
1141         end:
1142         X509_STORE_free(store);
1143         return NULL;
1144 }
1145
1146 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1147         {
1148         ENGINE *e = NULL;
1149
1150         if (engine)
1151                 {
1152                 if((e = ENGINE_by_id(engine)) == NULL)
1153                         {
1154                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1155                         return NULL;
1156                         }
1157                 if (debug)
1158                         {
1159                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1160                                 0, err, 0);
1161                         }
1162                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1163                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1164                         {
1165                         BIO_printf(err,"can't use that engine\n");
1166                         return NULL;
1167                         }
1168
1169                 ENGINE_load_engine_ciphers(e);
1170
1171                 BIO_printf(err,"engine \"%s\" set.\n", engine);
1172
1173                 /* Free our "structural" reference. */
1174                 ENGINE_free(e);
1175                 }
1176         return e;
1177         }