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 <strings.h>
  63 #include <sys/types.h>
  64 #include <sys/stat.h>
  65 #define NON_MAIN
  66 #include "apps.h"
  67 #undef NON_MAIN
  68 #include <openssl/err.h>
  69 #include <openssl/x509.h>
  70 #include <openssl/pem.h>
  71 #include <openssl/pkcs12.h>
  72 #include <openssl/safestack.h>
  73
  74 #ifdef OPENSSL_SYS_WINDOWS
  75 #  include "bss_file.c"
  76 #endif
  77
  78 typedef struct {
  79         char *name;
  80         unsigned long flag;
  81         unsigned long mask;
  82 } NAME_EX_TBL;
  83
  84 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
  85
  86 int app_init(long mesgwin);
  87 #ifdef undef /* never finished - probably never will be :-) */
  88 int args_from_file(char *file, int *argc, char **argv[])
  89         {
  90         FILE *fp;
  91         int num,i;
  92         unsigned int len;
  93         static char *buf=NULL;
  94         static char **arg=NULL;
  95         char *p;
  96         struct stat stbuf;
  97
  98         if (stat(file,&stbuf) < 0) return(0);
  99
 100         fp=fopen(file,"r");
 101         if (fp == NULL)
 102                 return(0);
 103
 104         *argc=0;
 105         *argv=NULL;
 106
 107         len=(unsigned int)stbuf.st_size;
 108         if (buf != NULL) OPENSSL_free(buf);
 109         buf=(char *)OPENSSL_malloc(len+1);
 110         if (buf == NULL) return(0);
 111
 112         len=fread(buf,1,len,fp);
 113         if (len <= 1) return(0);
 114         buf[len]='\0';
 115
 116         i=0;
 117         for (p=buf; *p; p++)
 118                 if (*p == '\n') i++;
 119         if (arg != NULL) OPENSSL_free(arg);
 120         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
 121
 122         *argv=arg;
 123         num=0;
 124         p=buf;
 125         for (;;)
 126                 {
 127                 if (!*p) break;
 128                 if (*p == '#') /* comment line */
 129                         {
 130                         while (*p && (*p != '\n')) p++;
 131                         continue;
 132                         }
 133                 /* else we have a line */
 134                 *(arg++)=p;
 135                 num++;
 136                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 137                         p++;
 138                 if (!*p) break;
 139                 if (*p == '\n')
 140                         {
 141                         *(p++)='\0';
 142                         continue;
 143                         }
 144                 /* else it is a tab or space */
 145                 p++;
 146                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 147                         p++;
 148                 if (!*p) break;
 149                 if (*p == '\n')
 150                         {
 151                         p++;
 152                         continue;
 153                         }
 154                 *(arg++)=p++;
 155                 num++;
 156                 while (*p && (*p != '\n')) p++;
 157                 if (!*p) break;
 158                 /* else *p == '\n' */
 159                 *(p++)='\0';
 160                 }
 161         *argc=num;
 162         return(1);
 163         }
 164 #endif
 165
 166 int str2fmt(char *s)
 167         {
 168         if      ((*s == 'D') || (*s == 'd'))
 169                 return(FORMAT_ASN1);
 170         else if ((*s == 'T') || (*s == 't'))
 171                 return(FORMAT_TEXT);
 172         else if ((*s == 'P') || (*s == 'p'))
 173                 return(FORMAT_PEM);
 174         else if ((*s == 'N') || (*s == 'n'))
 175                 return(FORMAT_NETSCAPE);
 176         else if ((*s == 'S') || (*s == 's'))
 177                 return(FORMAT_SMIME);
 178         else if ((*s == '1')
 179                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 180                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 181                 return(FORMAT_PKCS12);
 182         else if ((*s == 'E') || (*s == 'e'))
 183                 return(FORMAT_ENGINE);
 184         else
 185                 return(FORMAT_UNDEF);
 186         }
 187
 188 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
 189 void program_name(char *in, char *out, int size)
 190         {
 191         int i,n;
 192         char *p=NULL;
 193
 194         n=strlen(in);
 195         /* find the last '/', '\' or ':' */
 196         for (i=n-1; i>0; i--)
 197                 {
 198                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 199                         {
 200                         p= &(in[i+1]);
 201                         break;
 202                         }
 203                 }
 204         if (p == NULL)
 205                 p=in;
 206         n=strlen(p);
 207         /* strip off trailing .exe if present. */
 208         if ((n > 4) && (p[n-4] == '.') &&
 209                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 210                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 211                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
 212                 n-=4;
 213         if (n > size-1)
 214                 n=size-1;
 215
 216         for (i=0; i<n; i++)
 217                 {
 218                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
 219                         out[i]=p[i]-'A'+'a';
 220                 else
 221                         out[i]=p[i];
 222                 }
 223         out[n]='\0';
 224         }
 225 #else
 226 #ifdef OPENSSL_SYS_VMS
 227 void program_name(char *in, char *out, int size)
 228         {
 229         char *p=in, *q;
 230         char *chars=":]>";
 231
 232         while(*chars != '\0')
 233                 {
 234                 q=strrchr(p,*chars);
 235                 if (q > p)
 236                         p = q + 1;
 237                 chars++;
 238                 }
 239
 240         q=strrchr(p,'.');
 241         if (q == NULL)
 242                 q = in+size;
 243         strncpy(out,p,q-p);
 244         out[q-p]='\0';
 245         }
 246 #else
 247 void program_name(char *in, char *out, int size)
 248         {
 249         char *p;
 250
 251         p=strrchr(in,'/');
 252         if (p != NULL)
 253                 p++;
 254         else
 255                 p=in;
 256         strncpy(out,p,size-1);
 257         out[size-1]='\0';
 258         }
 259 #endif
 260 #endif
 261
 262 #ifdef OPENSSL_SYS_WIN32
 263 int WIN32_rename(char *from, char *to)
 264         {
 265 #ifdef OPENSSL_SYS_WINNT
 266         int ret;
 267 /* Note: MoveFileEx() doesn't work under Win95, Win98 */
 268
 269         ret=MoveFileEx(from,to,MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED);
 270         return(ret?0:-1);
 271 #else
 272         unlink(to);
 273         return MoveFile(from, to);
 274 #endif
 275         }
 276 #endif
 277
 278 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 279         {
 280         int num,len,i;
 281         char *p;
 282
 283         *argc=0;
 284         *argv=NULL;
 285
 286         len=strlen(buf);
 287         i=0;
 288         if (arg->count == 0)
 289                 {
 290                 arg->count=20;
 291                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 292                 }
 293         for (i=0; i<arg->count; i++)
 294                 arg->data[i]=NULL;
 295
 296         num=0;
 297         p=buf;
 298         for (;;)
 299                 {
 300                 /* first scan over white space */
 301                 if (!*p) break;
 302                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 303                         p++;
 304                 if (!*p) break;
 305
 306                 /* The start of something good :-) */
 307                 if (num >= arg->count)
 308                         {
 309                         arg->count+=20;
 310                         arg->data=(char **)OPENSSL_realloc(arg->data,
 311                                 sizeof(char *)*arg->count);
 312                         if (argc == 0) return(0);
 313                         }
 314                 arg->data[num++]=p;
 315
 316                 /* now look for the end of this */
 317                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 318                         {
 319                         i= *(p++);
 320                         arg->data[num-1]++; /* jump over quote */
 321                         while (*p && (*p != i))
 322                                 p++;
 323                         *p='\0';
 324                         }
 325                 else
 326                         {
 327                         while (*p && ((*p != ' ') &&
 328                                 (*p != '\t') && (*p != '\n')))
 329                                 p++;
 330
 331                         if (*p == '\0')
 332                                 p--;
 333                         else
 334                                 *p='\0';
 335                         }
 336                 p++;
 337                 }
 338         *argc=num;
 339         *argv=arg->data;
 340         return(1);
 341         }
 342
 343 #ifndef APP_INIT
 344 int app_init(long mesgwin)
 345         {
 346         return(1);
 347         }
 348 #endif
 349
 350
 351 int dump_cert_text (BIO *out, X509 *x)
 352 {
 353         char buf[256];
 354         X509_NAME_oneline(X509_get_subject_name(x),buf,256);
 355         BIO_puts(out,"subject=");
 356         BIO_puts(out,buf);
 357
 358         X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
 359         BIO_puts(out,"\nissuer= ");
 360         BIO_puts(out,buf);
 361         BIO_puts(out,"\n");
 362         return 0;
 363 }
 364
 365 static char *app_get_pass(BIO *err, char *arg, int keepbio);
 366
 367 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 368 {
 369         int same;
 370         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 371         else same = 1;
 372         if(arg1) {
 373                 *pass1 = app_get_pass(err, arg1, same);
 374                 if(!*pass1) return 0;
 375         } else if(pass1) *pass1 = NULL;
 376         if(arg2) {
 377                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 378                 if(!*pass2) return 0;
 379         } else if(pass2) *pass2 = NULL;
 380         return 1;
 381 }
 382
 383 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 384 {
 385         char *tmp, tpass[APP_PASS_LEN];
 386         static BIO *pwdbio = NULL;
 387         int i;
 388         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 389         if(!strncmp(arg, "env:", 4)) {
 390                 tmp = getenv(arg + 4);
 391                 if(!tmp) {
 392                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 393                         return NULL;
 394                 }
 395                 return BUF_strdup(tmp);
 396         }
 397         if(!keepbio || !pwdbio) {
 398                 if(!strncmp(arg, "file:", 5)) {
 399                         pwdbio = BIO_new_file(arg + 5, "r");
 400                         if(!pwdbio) {
 401                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
 402                                 return NULL;
 403                         }
 404                 } else if(!strncmp(arg, "fd:", 3)) {
 405                         BIO *btmp;
 406                         i = atoi(arg + 3);
 407                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 408                         if((i < 0) || !pwdbio) {
 409                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 410                                 return NULL;
 411                         }
 412                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 413                         btmp = BIO_new(BIO_f_buffer());
 414                         pwdbio = BIO_push(btmp, pwdbio);
 415                 } else if(!strcmp(arg, "stdin")) {
 416                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 417                         if(!pwdbio) {
 418                                 BIO_printf(err, "Can't open BIO for stdin\n");
 419                                 return NULL;
 420                         }
 421                 } else {
 422                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 423                         return NULL;
 424                 }
 425         }
 426         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 427         if(keepbio != 1) {
 428                 BIO_free_all(pwdbio);
 429                 pwdbio = NULL;
 430         }
 431         if(i <= 0) {
 432                 BIO_printf(err, "Error reading password from BIO\n");
 433                 return NULL;
 434         }
 435         tmp = strchr(tpass, '\n');
 436         if(tmp) *tmp = 0;
 437         return BUF_strdup(tpass);
 438 }
 439
 440 int add_oid_section(BIO *err, LHASH *conf)
 441 {
 442         char *p;
 443         STACK_OF(CONF_VALUE) *sktmp;
 444         CONF_VALUE *cnf;
 445         int i;
 446         if(!(p=CONF_get_string(conf,NULL,"oid_section")))
 447                 {
 448                 ERR_clear_error();
 449                 return 1;
 450                 }
 451         if(!(sktmp = CONF_get_section(conf, p))) {
 452                 BIO_printf(err, "problem loading oid section %s\n", p);
 453                 return 0;
 454         }
 455         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 456                 cnf = sk_CONF_VALUE_value(sktmp, i);
 457                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 458                         BIO_printf(err, "problem creating object %s=%s\n",
 459                                                          cnf->name, cnf->value);
 460                         return 0;
 461                 }
 462         }
 463         return 1;
 464 }
 465
 466 X509 *load_cert(BIO *err, char *file, int format)
 467         {
 468         ASN1_HEADER *ah=NULL;
 469         BUF_MEM *buf=NULL;
 470         X509 *x=NULL;
 471         BIO *cert;
 472
 473         if ((cert=BIO_new(BIO_s_file())) == NULL)
 474                 {
 475                 ERR_print_errors(err);
 476                 goto end;
 477                 }
 478
 479         if (file == NULL)
 480                 {
 481                 setvbuf(stdin, NULL, _IONBF, 0);
 482                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 483                 }
 484         else
 485                 {
 486                 if (BIO_read_filename(cert,file) <= 0)
 487                         {
 488                         perror(file);
 489                         goto end;
 490                         }
 491                 }
 492
 493         if      (format == FORMAT_ASN1)
 494                 x=d2i_X509_bio(cert,NULL);
 495         else if (format == FORMAT_NETSCAPE)
 496                 {
 497                 unsigned char *p,*op;
 498                 int size=0,i;
 499
 500                 /* We sort of have to do it this way because it is sort of nice
 501                  * to read the header first and check it, then
 502                  * try to read the certificate */
 503                 buf=BUF_MEM_new();
 504                 for (;;)
 505                         {
 506                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 507                                 goto end;
 508                         i=BIO_read(cert,&(buf->data[size]),1024*10);
 509                         size+=i;
 510                         if (i == 0) break;
 511                         if (i < 0)
 512                                 {
 513                                 perror("reading certificate");
 514                                 goto end;
 515                                 }
 516                         }
 517                 p=(unsigned char *)buf->data;
 518                 op=p;
 519
 520                 /* First load the header */
 521                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 522                         goto end;
 523                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
 524                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 525                         ah->header->length) != 0))
 526                         {
 527                         BIO_printf(err,"Error reading header on certificate\n");
 528                         goto end;
 529                         }
 530                 /* header is ok, so now read the object */
 531                 p=op;
 532                 ah->meth=X509_asn1_meth();
 533                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 534                         goto end;
 535                 x=(X509 *)ah->data;
 536                 ah->data=NULL;
 537                 }
 538         else if (format == FORMAT_PEM)
 539                 x=PEM_read_bio_X509_AUX(cert,NULL,NULL,NULL);
 540         else if (format == FORMAT_PKCS12)
 541                 {
 542                 PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);
 543
 544                 PKCS12_parse(p12, NULL, NULL, &x, NULL);
 545                 PKCS12_free(p12);
 546                 p12 = NULL;
 547                 }
 548         else    {
 549                 BIO_printf(err,"bad input format specified for input cert\n");
 550                 goto end;
 551                 }
 552 end:
 553         if (x == NULL)
 554                 {
 555                 BIO_printf(err,"unable to load certificate\n");
 556                 ERR_print_errors(err);
 557                 }
 558         if (ah != NULL) ASN1_HEADER_free(ah);
 559         if (cert != NULL) BIO_free(cert);
 560         if (buf != NULL) BUF_MEM_free(buf);
 561         return(x);
 562         }
 563
 564 EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass, ENGINE *e)
 565         {
 566         BIO *key=NULL;
 567         EVP_PKEY *pkey=NULL;
 568
 569         if (file == NULL)
 570                 {
 571                 BIO_printf(err,"no keyfile specified\n");
 572                 goto end;
 573                 }
 574         if (format == FORMAT_ENGINE)
 575                 {
 576                 if (!e)
 577                         BIO_printf(bio_err,"no engine specified\n");
 578                 else
 579                         pkey = ENGINE_load_private_key(e, file, pass);
 580                 goto end;
 581                 }
 582         key=BIO_new(BIO_s_file());
 583         if (key == NULL)
 584                 {
 585                 ERR_print_errors(err);
 586                 goto end;
 587                 }
 588         if (BIO_read_filename(key,file) <= 0)
 589                 {
 590                 perror(file);
 591                 goto end;
 592                 }
 593         if (format == FORMAT_ASN1)
 594                 {
 595                 pkey=d2i_PrivateKey_bio(key, NULL);
 596                 }
 597         else if (format == FORMAT_PEM)
 598                 {
 599                 pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,pass);
 600                 }
 601         else if (format == FORMAT_PKCS12)
 602                 {
 603                 PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);
 604
 605                 PKCS12_parse(p12, pass, &pkey, NULL, NULL);
 606                 PKCS12_free(p12);
 607                 p12 = NULL;
 608                 }
 609         else
 610                 {
 611                 BIO_printf(err,"bad input format specified for key\n");
 612                 goto end;
 613                 }
 614  end:
 615         if (key != NULL) BIO_free(key);
 616         if (pkey == NULL)
 617                 BIO_printf(err,"unable to load Private Key\n");
 618         return(pkey);
 619         }
 620
 621 EVP_PKEY *load_pubkey(BIO *err, char *file, int format, ENGINE *e)
 622         {
 623         BIO *key=NULL;
 624         EVP_PKEY *pkey=NULL;
 625
 626         if (file == NULL)
 627                 {
 628                 BIO_printf(err,"no keyfile specified\n");
 629                 goto end;
 630                 }
 631         if (format == FORMAT_ENGINE)
 632                 {
 633                 if (!e)
 634                         BIO_printf(bio_err,"no engine specified\n");
 635                 else
 636                         pkey = ENGINE_load_public_key(e, file, NULL);
 637                 goto end;
 638                 }
 639         key=BIO_new(BIO_s_file());
 640         if (key == NULL)
 641                 {
 642                 ERR_print_errors(err);
 643                 goto end;
 644                 }
 645         if (BIO_read_filename(key,file) <= 0)
 646                 {
 647                 perror(file);
 648                 goto end;
 649                 }
 650         if (format == FORMAT_ASN1)
 651                 {
 652                 pkey=d2i_PUBKEY_bio(key, NULL);
 653                 }
 654         else if (format == FORMAT_PEM)
 655                 {
 656                 pkey=PEM_read_bio_PUBKEY(key,NULL,NULL,NULL);
 657                 }
 658         else
 659                 {
 660                 BIO_printf(err,"bad input format specified for key\n");
 661                 goto end;
 662                 }
 663  end:
 664         if (key != NULL) BIO_free(key);
 665         if (pkey == NULL)
 666                 BIO_printf(err,"unable to load Public Key\n");
 667         return(pkey);
 668         }
 669
 670 STACK_OF(X509) *load_certs(BIO *err, char *file, int format)
 671         {
 672         BIO *certs;
 673         int i;
 674         STACK_OF(X509) *othercerts = NULL;
 675         STACK_OF(X509_INFO) *allcerts = NULL;
 676         X509_INFO *xi;
 677
 678         if((certs = BIO_new(BIO_s_file())) == NULL)
 679                 {
 680                 ERR_print_errors(err);
 681                 goto end;
 682                 }
 683
 684         if (file == NULL)
 685                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
 686         else
 687                 {
 688                 if (BIO_read_filename(certs,file) <= 0)
 689                         {
 690                         perror(file);
 691                         goto end;
 692                         }
 693                 }
 694
 695         if      (format == FORMAT_PEM)
 696                 {
 697                 othercerts = sk_X509_new_null();
 698                 if(!othercerts)
 699                         {
 700                         sk_X509_free(othercerts);
 701                         othercerts = NULL;
 702                         goto end;
 703                         }
 704                 allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
 705                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
 706                         {
 707                         xi = sk_X509_INFO_value (allcerts, i);
 708                         if (xi->x509)
 709                                 {
 710                                 sk_X509_push(othercerts, xi->x509);
 711                                 xi->x509 = NULL;
 712                                 }
 713                         }
 714                 goto end;
 715                 }
 716         else    {
 717                 BIO_printf(err,"bad input format specified for input cert\n");
 718                 goto end;
 719                 }
 720 end:
 721         if (othercerts == NULL)
 722                 {
 723                 BIO_printf(err,"unable to load certificates\n");
 724                 ERR_print_errors(err);
 725                 }
 726         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
 727         if (certs != NULL) BIO_free(certs);
 728         return(othercerts);
 729         }
 730
 731
 732 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
 733 /* Return error for unknown extensions */
 734 #define X509V3_EXT_DEFAULT              0
 735 /* Print error for unknown extensions */
 736 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
 737 /* ASN1 parse unknown extensions */
 738 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
 739 /* BIO_dump unknown extensions */
 740 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
 741
 742 int set_cert_ex(unsigned long *flags, const char *arg)
 743 {
 744         static const NAME_EX_TBL cert_tbl[] = {
 745                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
 746                 { "no_header", X509_FLAG_NO_HEADER, 0},
 747                 { "no_version", X509_FLAG_NO_VERSION, 0},
 748                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
 749                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
 750                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
 751                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
 752                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
 753                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
 754                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
 755                 { "no_aux", X509_FLAG_NO_AUX, 0},
 756                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
 757                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 758                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 759                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 760                 { NULL, 0, 0}
 761         };
 762         return set_table_opts(flags, arg, cert_tbl);
 763 }
 764
 765 int set_name_ex(unsigned long *flags, const char *arg)
 766 {
 767         static const NAME_EX_TBL ex_tbl[] = {
 768                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
 769                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
 770                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
 771                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
 772                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
 773                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
 774                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
 775                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
 776                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
 777                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
 778                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
 779                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
 780                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
 781                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
 782                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
 783                 { "dn_rev", XN_FLAG_DN_REV, 0},
 784                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
 785                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
 786                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
 787                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
 788                 { "space_eq", XN_FLAG_SPC_EQ, 0},
 789                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
 790                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
 791                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
 792                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
 793                 { NULL, 0, 0}
 794         };
 795         return set_table_opts(flags, arg, ex_tbl);
 796 }
 797
 798 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
 799 {
 800         char c;
 801         const NAME_EX_TBL *ptbl;
 802         c = arg[0];
 803
 804         if(c == '-') {
 805                 c = 0;
 806                 arg++;
 807         } else if (c == '+') {
 808                 c = 1;
 809                 arg++;
 810         } else c = 1;
 811
 812         for(ptbl = in_tbl; ptbl->name; ptbl++) {
 813                 if(!strcasecmp(arg, ptbl->name)) {
 814                         *flags &= ~ptbl->mask;
 815                         if(c) *flags |= ptbl->flag;
 816                         else *flags &= ~ptbl->flag;
 817                         return 1;
 818                 }
 819         }
 820         return 0;
 821 }
 822
 823 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
 824 {
 825         char buf[256];
 826         char mline = 0;
 827         int indent = 0;
 828         if(title) BIO_puts(out, title);
 829         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 830                 mline = 1;
 831                 indent = 4;
 832         }
 833         if(lflags == XN_FLAG_COMPAT) {
 834                 X509_NAME_oneline(nm,buf,256);
 835                 BIO_puts(out,buf);
 836                 BIO_puts(out, "\n");
 837         } else {
 838                 if(mline) BIO_puts(out, "\n");
 839                 X509_NAME_print_ex(out, nm, indent, lflags);
 840                 BIO_puts(out, "\n");
 841         }
 842 }
 843
 844 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
 845 {
 846         X509_STORE *store;
 847         X509_LOOKUP *lookup;
 848         if(!(store = X509_STORE_new())) goto end;
 849         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 850         if (lookup == NULL) goto end;
 851         if (CAfile) {
 852                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
 853                         BIO_printf(bp, "Error loading file %s\n", CAfile);
 854                         goto end;
 855                 }
 856         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 857
 858         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 859         if (lookup == NULL) goto end;
 860         if (CApath) {
 861                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
 862                         BIO_printf(bp, "Error loading directory %s\n", CApath);
 863                         goto end;
 864                 }
 865         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 866
 867         ERR_clear_error();
 868         return store;
 869         end:
 870         X509_STORE_free(store);
 871         return NULL;
 872 }