fast reduction for NIST curves
[openssl.git] / apps / apps.c
1 /* apps/apps.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 /* ====================================================================
59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
60  *
61  * Redistribution and use in source and binary forms, with or without
62  * modification, are permitted provided that the following conditions
63  * are met:
64  *
65  * 1. Redistributions of source code must retain the above copyright
66  *    notice, this list of conditions and the following disclaimer. 
67  *
68  * 2. Redistributions in binary form must reproduce the above copyright
69  *    notice, this list of conditions and the following disclaimer in
70  *    the documentation and/or other materials provided with the
71  *    distribution.
72  *
73  * 3. All advertising materials mentioning features or use of this
74  *    software must display the following acknowledgment:
75  *    "This product includes software developed by the OpenSSL Project
76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77  *
78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79  *    endorse or promote products derived from this software without
80  *    prior written permission. For written permission, please contact
81  *    openssl-core@openssl.org.
82  *
83  * 5. Products derived from this software may not be called "OpenSSL"
84  *    nor may "OpenSSL" appear in their names without prior written
85  *    permission of the OpenSSL Project.
86  *
87  * 6. Redistributions of any form whatsoever must retain the following
88  *    acknowledgment:
89  *    "This product includes software developed by the OpenSSL Project
90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91  *
92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103  * OF THE POSSIBILITY OF SUCH DAMAGE.
104  * ====================================================================
105  *
106  * This product includes cryptographic software written by Eric Young
107  * (eay@cryptsoft.com).  This product includes software written by Tim
108  * Hudson (tjh@cryptsoft.com).
109  *
110  */
111
112 #include <stdio.h>
113 #include <stdlib.h>
114 #include <string.h>
115 #include <sys/types.h>
116 #include <sys/stat.h>
117 #include <ctype.h>
118 #include <openssl/err.h>
119 #include <openssl/x509.h>
120 #include <openssl/x509v3.h>
121 #include <openssl/pem.h>
122 #include <openssl/pkcs12.h>
123 #include <openssl/ui.h>
124 #include <openssl/safestack.h>
125 #include <openssl/engine.h>
126
127 #ifdef OPENSSL_SYS_WINDOWS
128 #define strcasecmp _stricmp
129 #else
130 #  ifdef NO_STRINGS_H
131     int strcasecmp();
132 #  else
133 #    include <strings.h>
134 #  endif /* NO_STRINGS_H */
135 #endif
136
137 #define NON_MAIN
138 #include "apps.h"
139 #undef NON_MAIN
140
141 #ifdef OPENSSL_SYS_WINDOWS
142 #  include "bss_file.c"
143 #endif
144
145 typedef struct {
146         char *name;
147         unsigned long flag;
148         unsigned long mask;
149 } NAME_EX_TBL;
150
151 static UI_METHOD *ui_method = NULL;
152
153 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
154 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
155
156 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
157 /* Looks like this stuff is worth moving into separate function */
158 static EVP_PKEY *
159 load_netscape_key(BIO *err, BIO *key, const char *file,
160                 const char *key_descrip, int format);
161 #endif
162
163 int app_init(long mesgwin);
164 #ifdef undef /* never finished - probably never will be :-) */
165 int args_from_file(char *file, int *argc, char **argv[])
166         {
167         FILE *fp;
168         int num,i;
169         unsigned int len;
170         static char *buf=NULL;
171         static char **arg=NULL;
172         char *p;
173         struct stat stbuf;
174
175         if (stat(file,&stbuf) < 0) return(0);
176
177         fp=fopen(file,"r");
178         if (fp == NULL)
179                 return(0);
180
181         *argc=0;
182         *argv=NULL;
183
184         len=(unsigned int)stbuf.st_size;
185         if (buf != NULL) OPENSSL_free(buf);
186         buf=(char *)OPENSSL_malloc(len+1);
187         if (buf == NULL) return(0);
188
189         len=fread(buf,1,len,fp);
190         if (len <= 1) return(0);
191         buf[len]='\0';
192
193         i=0;
194         for (p=buf; *p; p++)
195                 if (*p == '\n') i++;
196         if (arg != NULL) OPENSSL_free(arg);
197         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
198
199         *argv=arg;
200         num=0;
201         p=buf;
202         for (;;)
203                 {
204                 if (!*p) break;
205                 if (*p == '#') /* comment line */
206                         {
207                         while (*p && (*p != '\n')) p++;
208                         continue;
209                         }
210                 /* else we have a line */
211                 *(arg++)=p;
212                 num++;
213                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
214                         p++;
215                 if (!*p) break;
216                 if (*p == '\n')
217                         {
218                         *(p++)='\0';
219                         continue;
220                         }
221                 /* else it is a tab or space */
222                 p++;
223                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
224                         p++;
225                 if (!*p) break;
226                 if (*p == '\n')
227                         {
228                         p++;
229                         continue;
230                         }
231                 *(arg++)=p++;
232                 num++;
233                 while (*p && (*p != '\n')) p++;
234                 if (!*p) break;
235                 /* else *p == '\n' */
236                 *(p++)='\0';
237                 }
238         *argc=num;
239         return(1);
240         }
241 #endif
242
243 int str2fmt(char *s)
244         {
245         if      ((*s == 'D') || (*s == 'd'))
246                 return(FORMAT_ASN1);
247         else if ((*s == 'T') || (*s == 't'))
248                 return(FORMAT_TEXT);
249         else if ((*s == 'P') || (*s == 'p'))
250                 return(FORMAT_PEM);
251         else if ((*s == 'N') || (*s == 'n'))
252                 return(FORMAT_NETSCAPE);
253         else if ((*s == 'S') || (*s == 's'))
254                 return(FORMAT_SMIME);
255         else if ((*s == '1')
256                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
257                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
258                 return(FORMAT_PKCS12);
259         else if ((*s == 'E') || (*s == 'e'))
260                 return(FORMAT_ENGINE);
261         else
262                 return(FORMAT_UNDEF);
263         }
264
265 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
266 void program_name(char *in, char *out, int size)
267         {
268         int i,n;
269         char *p=NULL;
270
271         n=strlen(in);
272         /* find the last '/', '\' or ':' */
273         for (i=n-1; i>0; i--)
274                 {
275                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
276                         {
277                         p= &(in[i+1]);
278                         break;
279                         }
280                 }
281         if (p == NULL)
282                 p=in;
283         n=strlen(p);
284         /* strip off trailing .exe if present. */
285         if ((n > 4) && (p[n-4] == '.') &&
286                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
287                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
288                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
289                 n-=4;
290         if (n > size-1)
291                 n=size-1;
292
293         for (i=0; i<n; i++)
294                 {
295                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
296                         out[i]=p[i]-'A'+'a';
297                 else
298                         out[i]=p[i];
299                 }
300         out[n]='\0';
301         }
302 #else
303 #ifdef OPENSSL_SYS_VMS
304 void program_name(char *in, char *out, int size)
305         {
306         char *p=in, *q;
307         char *chars=":]>";
308
309         while(*chars != '\0')
310                 {
311                 q=strrchr(p,*chars);
312                 if (q > p)
313                         p = q + 1;
314                 chars++;
315                 }
316
317         q=strrchr(p,'.');
318         if (q == NULL)
319                 q = p + strlen(p);
320         strncpy(out,p,size-1);
321         if (q-p >= size)
322                 {
323                 out[size-1]='\0';
324                 }
325         else
326                 {
327                 out[q-p]='\0';
328                 }
329         }
330 #else
331 void program_name(char *in, char *out, int size)
332         {
333         char *p;
334
335         p=strrchr(in,'/');
336         if (p != NULL)
337                 p++;
338         else
339                 p=in;
340         strncpy(out,p,size-1);
341         out[size-1]='\0';
342         }
343 #endif
344 #endif
345
346 #ifdef OPENSSL_SYS_WIN32
347 int WIN32_rename(char *from, char *to)
348         {
349         /* Windows rename gives an error if 'to' exists, so delete it
350          * first and ignore file not found errror
351          */
352         if((remove(to) != 0) && (errno != ENOENT))
353                 return -1;
354 #undef rename
355         return rename(from, to);
356         }
357 #endif
358
359 #ifdef OPENSSL_SYS_VMS
360 int VMS_strcasecmp(const char *str1, const char *str2)
361         {
362         while (*str1 && *str2)
363                 {
364                 int res = toupper(*str1) - toupper(*str2);
365                 if (res) return res < 0 ? -1 : 1;
366                 }
367         if (*str1)
368                 return 1;
369         if (*str2)
370                 return -1;
371         return 0;
372         }
373 #endif
374
375 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
376         {
377         int num,len,i;
378         char *p;
379
380         *argc=0;
381         *argv=NULL;
382
383         len=strlen(buf);
384         i=0;
385         if (arg->count == 0)
386                 {
387                 arg->count=20;
388                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
389                 }
390         for (i=0; i<arg->count; i++)
391                 arg->data[i]=NULL;
392
393         num=0;
394         p=buf;
395         for (;;)
396                 {
397                 /* first scan over white space */
398                 if (!*p) break;
399                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
400                         p++;
401                 if (!*p) break;
402
403                 /* The start of something good :-) */
404                 if (num >= arg->count)
405                         {
406                         arg->count+=20;
407                         arg->data=(char **)OPENSSL_realloc(arg->data,
408                                 sizeof(char *)*arg->count);
409                         if (argc == 0) return(0);
410                         }
411                 arg->data[num++]=p;
412
413                 /* now look for the end of this */
414                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
415                         {
416                         i= *(p++);
417                         arg->data[num-1]++; /* jump over quote */
418                         while (*p && (*p != i))
419                                 p++;
420                         *p='\0';
421                         }
422                 else
423                         {
424                         while (*p && ((*p != ' ') &&
425                                 (*p != '\t') && (*p != '\n')))
426                                 p++;
427
428                         if (*p == '\0')
429                                 p--;
430                         else
431                                 *p='\0';
432                         }
433                 p++;
434                 }
435         *argc=num;
436         *argv=arg->data;
437         return(1);
438         }
439
440 #ifndef APP_INIT
441 int app_init(long mesgwin)
442         {
443         return(1);
444         }
445 #endif
446
447
448 int dump_cert_text (BIO *out, X509 *x)
449 {
450         char buf[256];
451         X509_NAME_oneline(X509_get_subject_name(x),buf,256);
452         BIO_puts(out,"subject=");
453         BIO_puts(out,buf);
454
455         X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
456         BIO_puts(out,"\nissuer= ");
457         BIO_puts(out,buf);
458         BIO_puts(out,"\n");
459         return 0;
460 }
461
462 static int ui_open(UI *ui)
463         {
464         return UI_method_get_opener(UI_OpenSSL())(ui);
465         }
466 static int ui_read(UI *ui, UI_STRING *uis)
467         {
468         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
469                 && UI_get0_user_data(ui))
470                 {
471                 switch(UI_get_string_type(uis))
472                         {
473                 case UIT_PROMPT:
474                 case UIT_VERIFY:
475                         {
476                         const char *password =
477                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
478                         if (password[0] != '\0')
479                                 {
480                                 UI_set_result(ui, uis, password);
481                                 return 1;
482                                 }
483                         }
484                 default:
485                         break;
486                         }
487                 }
488         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
489         }
490 static int ui_write(UI *ui, UI_STRING *uis)
491         {
492         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
493                 && UI_get0_user_data(ui))
494                 {
495                 switch(UI_get_string_type(uis))
496                         {
497                 case UIT_PROMPT:
498                 case UIT_VERIFY:
499                         {
500                         const char *password =
501                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
502                         if (password[0] != '\0')
503                                 return 1;
504                         }
505                 default:
506                         break;
507                         }
508                 }
509         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
510         }
511 static int ui_close(UI *ui)
512         {
513         return UI_method_get_closer(UI_OpenSSL())(ui);
514         }
515 int setup_ui_method(void)
516         {
517         ui_method = UI_create_method("OpenSSL application user interface");
518         UI_method_set_opener(ui_method, ui_open);
519         UI_method_set_reader(ui_method, ui_read);
520         UI_method_set_writer(ui_method, ui_write);
521         UI_method_set_closer(ui_method, ui_close);
522         return 0;
523         }
524 void destroy_ui_method(void)
525         {
526         if(ui_method)
527                 {
528                 UI_destroy_method(ui_method);
529                 ui_method = NULL;
530                 }
531         }
532 int password_callback(char *buf, int bufsiz, int verify,
533         PW_CB_DATA *cb_tmp)
534         {
535         UI *ui = NULL;
536         int res = 0;
537         const char *prompt_info = NULL;
538         const char *password = NULL;
539         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
540
541         if (cb_data)
542                 {
543                 if (cb_data->password)
544                         password = cb_data->password;
545                 if (cb_data->prompt_info)
546                         prompt_info = cb_data->prompt_info;
547                 }
548
549         if (password)
550                 {
551                 res = strlen(password);
552                 if (res > bufsiz)
553                         res = bufsiz;
554                 memcpy(buf, password, res);
555                 return res;
556                 }
557
558         ui = UI_new_method(ui_method);
559         if (ui)
560                 {
561                 int ok = 0;
562                 char *buff = NULL;
563                 int ui_flags = 0;
564                 char *prompt = NULL;
565
566                 prompt = UI_construct_prompt(ui, "pass phrase",
567                         cb_data->prompt_info);
568
569                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
570                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
571
572                 if (ok >= 0)
573                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
574                                 PW_MIN_LENGTH,BUFSIZ-1);
575                 if (ok >= 0 && verify)
576                         {
577                         buff = (char *)OPENSSL_malloc(bufsiz);
578                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
579                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
580                         }
581                 if (ok >= 0)
582                         do
583                                 {
584                                 ok = UI_process(ui);
585                                 }
586                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
587
588                 if (buff)
589                         {
590                         memset(buff,0,(unsigned int)bufsiz);
591                         OPENSSL_free(buff);
592                         }
593
594                 if (ok >= 0)
595                         res = strlen(buf);
596                 if (ok == -1)
597                         {
598                         BIO_printf(bio_err, "User interface error\n");
599                         ERR_print_errors(bio_err);
600                         memset(buf,0,(unsigned int)bufsiz);
601                         res = 0;
602                         }
603                 if (ok == -2)
604                         {
605                         BIO_printf(bio_err,"aborted!\n");
606                         memset(buf,0,(unsigned int)bufsiz);
607                         res = 0;
608                         }
609                 UI_free(ui);
610                 OPENSSL_free(prompt);
611                 }
612         return res;
613         }
614
615 static char *app_get_pass(BIO *err, char *arg, int keepbio);
616
617 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
618 {
619         int same;
620         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
621         else same = 1;
622         if(arg1) {
623                 *pass1 = app_get_pass(err, arg1, same);
624                 if(!*pass1) return 0;
625         } else if(pass1) *pass1 = NULL;
626         if(arg2) {
627                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
628                 if(!*pass2) return 0;
629         } else if(pass2) *pass2 = NULL;
630         return 1;
631 }
632
633 static char *app_get_pass(BIO *err, char *arg, int keepbio)
634 {
635         char *tmp, tpass[APP_PASS_LEN];
636         static BIO *pwdbio = NULL;
637         int i;
638         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
639         if(!strncmp(arg, "env:", 4)) {
640                 tmp = getenv(arg + 4);
641                 if(!tmp) {
642                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
643                         return NULL;
644                 }
645                 return BUF_strdup(tmp);
646         }
647         if(!keepbio || !pwdbio) {
648                 if(!strncmp(arg, "file:", 5)) {
649                         pwdbio = BIO_new_file(arg + 5, "r");
650                         if(!pwdbio) {
651                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
652                                 return NULL;
653                         }
654                 } else if(!strncmp(arg, "fd:", 3)) {
655                         BIO *btmp;
656                         i = atoi(arg + 3);
657                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
658                         if((i < 0) || !pwdbio) {
659                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
660                                 return NULL;
661                         }
662                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
663                         btmp = BIO_new(BIO_f_buffer());
664                         pwdbio = BIO_push(btmp, pwdbio);
665                 } else if(!strcmp(arg, "stdin")) {
666                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
667                         if(!pwdbio) {
668                                 BIO_printf(err, "Can't open BIO for stdin\n");
669                                 return NULL;
670                         }
671                 } else {
672                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
673                         return NULL;
674                 }
675         }
676         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
677         if(keepbio != 1) {
678                 BIO_free_all(pwdbio);
679                 pwdbio = NULL;
680         }
681         if(i <= 0) {
682                 BIO_printf(err, "Error reading password from BIO\n");
683                 return NULL;
684         }
685         tmp = strchr(tpass, '\n');
686         if(tmp) *tmp = 0;
687         return BUF_strdup(tpass);
688 }
689
690 int add_oid_section(BIO *err, CONF *conf)
691 {       
692         char *p;
693         STACK_OF(CONF_VALUE) *sktmp;
694         CONF_VALUE *cnf;
695         int i;
696         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
697                 {
698                 ERR_clear_error();
699                 return 1;
700                 }
701         if(!(sktmp = NCONF_get_section(conf, p))) {
702                 BIO_printf(err, "problem loading oid section %s\n", p);
703                 return 0;
704         }
705         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
706                 cnf = sk_CONF_VALUE_value(sktmp, i);
707                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
708                         BIO_printf(err, "problem creating object %s=%s\n",
709                                                          cnf->name, cnf->value);
710                         return 0;
711                 }
712         }
713         return 1;
714 }
715
716 X509 *load_cert(BIO *err, const char *file, int format,
717         const char *pass, ENGINE *e, const char *cert_descrip)
718         {
719         ASN1_HEADER *ah=NULL;
720         BUF_MEM *buf=NULL;
721         X509 *x=NULL;
722         BIO *cert;
723
724         if ((cert=BIO_new(BIO_s_file())) == NULL)
725                 {
726                 ERR_print_errors(err);
727                 goto end;
728                 }
729
730         if (file == NULL)
731                 {
732                 setvbuf(stdin, NULL, _IONBF, 0);
733                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
734                 }
735         else
736                 {
737                 if (BIO_read_filename(cert,file) <= 0)
738                         {
739                         BIO_printf(err, "Error opening %s %s\n",
740                                 cert_descrip, file);
741                         ERR_print_errors(err);
742                         goto end;
743                         }
744                 }
745
746         if      (format == FORMAT_ASN1)
747                 x=d2i_X509_bio(cert,NULL);
748         else if (format == FORMAT_NETSCAPE)
749                 {
750                 unsigned char *p,*op;
751                 int size=0,i;
752
753                 /* We sort of have to do it this way because it is sort of nice
754                  * to read the header first and check it, then
755                  * try to read the certificate */
756                 buf=BUF_MEM_new();
757                 for (;;)
758                         {
759                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
760                                 goto end;
761                         i=BIO_read(cert,&(buf->data[size]),1024*10);
762                         size+=i;
763                         if (i == 0) break;
764                         if (i < 0)
765                                 {
766                                 perror("reading certificate");
767                                 goto end;
768                                 }
769                         }
770                 p=(unsigned char *)buf->data;
771                 op=p;
772
773                 /* First load the header */
774                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
775                         goto end;
776                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
777                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
778                         ah->header->length) != 0))
779                         {
780                         BIO_printf(err,"Error reading header on certificate\n");
781                         goto end;
782                         }
783                 /* header is ok, so now read the object */
784                 p=op;
785                 ah->meth=X509_asn1_meth();
786                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
787                         goto end;
788                 x=(X509 *)ah->data;
789                 ah->data=NULL;
790                 }
791         else if (format == FORMAT_PEM)
792                 x=PEM_read_bio_X509_AUX(cert,NULL,
793                         (pem_password_cb *)password_callback, NULL);
794         else if (format == FORMAT_PKCS12)
795                 {
796                 PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);
797
798                 PKCS12_parse(p12, NULL, NULL, &x, NULL);
799                 PKCS12_free(p12);
800                 p12 = NULL;
801                 }
802         else    {
803                 BIO_printf(err,"bad input format specified for %s\n",
804                         cert_descrip);
805                 goto end;
806                 }
807 end:
808         if (x == NULL)
809                 {
810                 BIO_printf(err,"unable to load certificate\n");
811                 ERR_print_errors(err);
812                 }
813         if (ah != NULL) ASN1_HEADER_free(ah);
814         if (cert != NULL) BIO_free(cert);
815         if (buf != NULL) BUF_MEM_free(buf);
816         return(x);
817         }
818
819 EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
820         const char *pass, ENGINE *e, const char *key_descrip)
821         {
822         BIO *key=NULL;
823         EVP_PKEY *pkey=NULL;
824         PW_CB_DATA cb_data;
825
826         cb_data.password = pass;
827         cb_data.prompt_info = file;
828
829         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
830                 {
831                 BIO_printf(err,"no keyfile specified\n");
832                 goto end;
833                 }
834         if (format == FORMAT_ENGINE)
835                 {
836                 if (!e)
837                         BIO_printf(bio_err,"no engine specified\n");
838                 else
839                         pkey = ENGINE_load_private_key(e, file,
840                                 ui_method, &cb_data);
841                 goto end;
842                 }
843         key=BIO_new(BIO_s_file());
844         if (key == NULL)
845                 {
846                 ERR_print_errors(err);
847                 goto end;
848                 }
849         if (file == NULL && maybe_stdin)
850                 {
851                 setvbuf(stdin, NULL, _IONBF, 0);
852                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
853                 }
854         else
855                 if (BIO_read_filename(key,file) <= 0)
856                         {
857                         BIO_printf(err, "Error opening %s %s\n",
858                                 key_descrip, file);
859                         ERR_print_errors(err);
860                         goto end;
861                         }
862         if (format == FORMAT_ASN1)
863                 {
864                 pkey=d2i_PrivateKey_bio(key, NULL);
865                 }
866         else if (format == FORMAT_PEM)
867                 {
868                 pkey=PEM_read_bio_PrivateKey(key,NULL,
869                         (pem_password_cb *)password_callback, &cb_data);
870                 }
871 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
872         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
873                 pkey = load_netscape_key(err, key, file, key_descrip, format);
874 #endif
875         else if (format == FORMAT_PKCS12)
876                 {
877                 PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);
878
879                 PKCS12_parse(p12, pass, &pkey, NULL, NULL);
880                 PKCS12_free(p12);
881                 p12 = NULL;
882                 }
883         else
884                 {
885                 BIO_printf(err,"bad input format specified for key file\n");
886                 goto end;
887                 }
888  end:
889         if (key != NULL) BIO_free(key);
890         if (pkey == NULL)
891                 BIO_printf(err,"unable to load %s\n", key_descrip);
892         return(pkey);
893         }
894
895 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
896         const char *pass, ENGINE *e, const char *key_descrip)
897         {
898         BIO *key=NULL;
899         EVP_PKEY *pkey=NULL;
900         PW_CB_DATA cb_data;
901
902         cb_data.password = pass;
903         cb_data.prompt_info = file;
904
905         if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE))
906                 {
907                 BIO_printf(err,"no keyfile specified\n");
908                 goto end;
909                 }
910         if (format == FORMAT_ENGINE)
911                 {
912                 if (!e)
913                         BIO_printf(bio_err,"no engine specified\n");
914                 else
915                         pkey = ENGINE_load_public_key(e, file,
916                                 ui_method, &cb_data);
917                 goto end;
918                 }
919         key=BIO_new(BIO_s_file());
920         if (key == NULL)
921                 {
922                 ERR_print_errors(err);
923                 goto end;
924                 }
925         if (file == NULL && maybe_stdin)
926                 {
927                 setvbuf(stdin, NULL, _IONBF, 0);
928                 BIO_set_fp(key,stdin,BIO_NOCLOSE);
929                 }
930         else
931                 if (BIO_read_filename(key,file) <= 0)
932                         {
933                         BIO_printf(err, "Error opening %s %s\n",
934                                 key_descrip, file);
935                         ERR_print_errors(err);
936                         goto end;
937                 }
938         if (format == FORMAT_ASN1)
939                 {
940                 pkey=d2i_PUBKEY_bio(key, NULL);
941                 }
942         else if (format == FORMAT_PEM)
943                 {
944                 pkey=PEM_read_bio_PUBKEY(key,NULL,
945                         (pem_password_cb *)password_callback, &cb_data);
946                 }
947 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
948         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
949                 pkey = load_netscape_key(err, key, file, key_descrip, format);
950 #endif
951         else
952                 {
953                 BIO_printf(err,"bad input format specified for key file\n");
954                 goto end;
955                 }
956  end:
957         if (key != NULL) BIO_free(key);
958         if (pkey == NULL)
959                 BIO_printf(err,"unable to load %s\n", key_descrip);
960         return(pkey);
961         }
962
963 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
964 static EVP_PKEY *
965 load_netscape_key(BIO *err, BIO *key, const char *file,
966                 const char *key_descrip, int format)
967         {
968         EVP_PKEY *pkey;
969         BUF_MEM *buf;
970         RSA     *rsa;
971         const unsigned char *p;
972         int size, i;
973
974         buf=BUF_MEM_new();
975         pkey = EVP_PKEY_new();
976         size = 0;
977         if (buf == NULL || pkey == NULL)
978                 goto error;
979         for (;;)
980                 {
981                 if (!BUF_MEM_grow(buf,size+1024*10))
982                         goto error;
983                 i = BIO_read(key, &(buf->data[size]), 1024*10);
984                 size += i;
985                 if (i == 0)
986                         break;
987                 if (i < 0)
988                         {
989                                 BIO_printf(err, "Error reading %s %s",
990                                         key_descrip, file);
991                                 goto error;
992                         }
993                 }
994         p=(unsigned char *)buf->data;
995         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
996                 (format == FORMAT_IISSGC ? 1 : 0));
997         if (rsa == NULL)
998                 goto error;
999         BUF_MEM_free(buf);
1000         EVP_PKEY_set1_RSA(pkey, rsa);
1001         return pkey;
1002 error:
1003         BUF_MEM_free(buf);
1004         EVP_PKEY_free(pkey);
1005         return NULL;
1006         }
1007 #endif /* ndef OPENSSL_NO_RC4 */
1008
1009 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1010         const char *pass, ENGINE *e, const char *cert_descrip)
1011         {
1012         BIO *certs;
1013         int i;
1014         STACK_OF(X509) *othercerts = NULL;
1015         STACK_OF(X509_INFO) *allcerts = NULL;
1016         X509_INFO *xi;
1017         PW_CB_DATA cb_data;
1018
1019         cb_data.password = pass;
1020         cb_data.prompt_info = file;
1021
1022         if((certs = BIO_new(BIO_s_file())) == NULL)
1023                 {
1024                 ERR_print_errors(err);
1025                 goto end;
1026                 }
1027
1028         if (file == NULL)
1029                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
1030         else
1031                 {
1032                 if (BIO_read_filename(certs,file) <= 0)
1033                         {
1034                         BIO_printf(err, "Error opening %s %s\n",
1035                                 cert_descrip, file);
1036                         ERR_print_errors(err);
1037                         goto end;
1038                         }
1039                 }
1040
1041         if      (format == FORMAT_PEM)
1042                 {
1043                 othercerts = sk_X509_new_null();
1044                 if(!othercerts)
1045                         {
1046                         sk_X509_free(othercerts);
1047                         othercerts = NULL;
1048                         goto end;
1049                         }
1050                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1051                                 (pem_password_cb *)password_callback, &cb_data);
1052                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1053                         {
1054                         xi = sk_X509_INFO_value (allcerts, i);
1055                         if (xi->x509)
1056                                 {
1057                                 sk_X509_push(othercerts, xi->x509);
1058                                 xi->x509 = NULL;
1059                                 }
1060                         }
1061                 goto end;
1062                 }
1063         else    {
1064                 BIO_printf(err,"bad input format specified for %s\n",
1065                         cert_descrip);
1066                 goto end;
1067                 }
1068 end:
1069         if (othercerts == NULL)
1070                 {
1071                 BIO_printf(err,"unable to load certificates\n");
1072                 ERR_print_errors(err);
1073                 }
1074         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1075         if (certs != NULL) BIO_free(certs);
1076         return(othercerts);
1077         }
1078
1079
1080 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1081 /* Return error for unknown extensions */
1082 #define X509V3_EXT_DEFAULT              0
1083 /* Print error for unknown extensions */
1084 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1085 /* ASN1 parse unknown extensions */
1086 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1087 /* BIO_dump unknown extensions */
1088 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1089
1090 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1091                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1092
1093 int set_cert_ex(unsigned long *flags, const char *arg)
1094 {
1095         static const NAME_EX_TBL cert_tbl[] = {
1096                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1097                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1098                 { "no_header", X509_FLAG_NO_HEADER, 0},
1099                 { "no_version", X509_FLAG_NO_VERSION, 0},
1100                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1101                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1102                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1103                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1104                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1105                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1106                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1107                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1108                 { "no_aux", X509_FLAG_NO_AUX, 0},
1109                 { "no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1110                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1111                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1112                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1113                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1114                 { NULL, 0, 0}
1115         };
1116         return set_multi_opts(flags, arg, cert_tbl);
1117 }
1118
1119 int set_name_ex(unsigned long *flags, const char *arg)
1120 {
1121         static const NAME_EX_TBL ex_tbl[] = {
1122                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1123                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1124                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1125                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1126                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1127                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1128                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1129                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1130                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1131                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1132                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1133                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1134                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1135                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1136                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1137                 { "dn_rev", XN_FLAG_DN_REV, 0},
1138                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1139                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1140                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1141                 { "align", XN_FLAG_FN_ALIGN, 0},
1142                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1143                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1144                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1145                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1146                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1147                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1148                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1149                 { NULL, 0, 0}
1150         };
1151         return set_multi_opts(flags, arg, ex_tbl);
1152 }
1153
1154 int set_ext_copy(int *copy_type, const char *arg)
1155 {
1156         if (!strcasecmp(arg, "none"))
1157                 *copy_type = EXT_COPY_NONE;
1158         else if (!strcasecmp(arg, "copy"))
1159                 *copy_type = EXT_COPY_ADD;
1160         else if (!strcasecmp(arg, "copyall"))
1161                 *copy_type = EXT_COPY_ALL;
1162         else
1163                 return 0;
1164         return 1;
1165 }
1166
1167 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1168 {
1169         STACK_OF(X509_EXTENSION) *exts = NULL;
1170         X509_EXTENSION *ext, *tmpext;
1171         ASN1_OBJECT *obj;
1172         int i, idx, ret = 0;
1173         if (!x || !req || (copy_type == EXT_COPY_NONE))
1174                 return 1;
1175         exts = X509_REQ_get_extensions(req);
1176
1177         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1178                 ext = sk_X509_EXTENSION_value(exts, i);
1179                 obj = X509_EXTENSION_get_object(ext);
1180                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1181                 /* Does extension exist? */
1182                 if (idx != -1) {
1183                         /* If normal copy don't override existing extension */
1184                         if (copy_type == EXT_COPY_ADD)
1185                                 continue;
1186                         /* Delete all extensions of same type */
1187                         do {
1188                                 tmpext = X509_get_ext(x, idx);
1189                                 X509_delete_ext(x, idx);
1190                                 X509_EXTENSION_free(tmpext);
1191                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1192                         } while (idx != -1);
1193                 }
1194                 if (!X509_add_ext(x, ext, -1))
1195                         goto end;
1196         }
1197
1198         ret = 1;
1199
1200         end:
1201
1202         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1203
1204         return ret;
1205 }
1206                 
1207                 
1208                         
1209
1210 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1211 {
1212         STACK_OF(CONF_VALUE) *vals;
1213         CONF_VALUE *val;
1214         int i, ret = 1;
1215         if(!arg) return 0;
1216         vals = X509V3_parse_list(arg);
1217         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1218                 val = sk_CONF_VALUE_value(vals, i);
1219                 if (!set_table_opts(flags, val->name, in_tbl))
1220                         ret = 0;
1221         }
1222         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1223         return ret;
1224 }
1225
1226 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1227 {
1228         char c;
1229         const NAME_EX_TBL *ptbl;
1230         c = arg[0];
1231
1232         if(c == '-') {
1233                 c = 0;
1234                 arg++;
1235         } else if (c == '+') {
1236                 c = 1;
1237                 arg++;
1238         } else c = 1;
1239
1240         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1241                 if(!strcasecmp(arg, ptbl->name)) {
1242                         *flags &= ~ptbl->mask;
1243                         if(c) *flags |= ptbl->flag;
1244                         else *flags &= ~ptbl->flag;
1245                         return 1;
1246                 }
1247         }
1248         return 0;
1249 }
1250
1251 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
1252 {
1253         char *buf;
1254         char mline = 0;
1255         int indent = 0;
1256         if(title) BIO_puts(out, title);
1257         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1258                 mline = 1;
1259                 indent = 4;
1260         }
1261         if(lflags == XN_FLAG_COMPAT) {
1262                 buf = X509_NAME_oneline(nm, 0, 0);
1263                 BIO_puts(out, buf);
1264                 BIO_puts(out, "\n");
1265                 OPENSSL_free(buf);
1266         } else {
1267                 if(mline) BIO_puts(out, "\n");
1268                 X509_NAME_print_ex(out, nm, indent, lflags);
1269                 BIO_puts(out, "\n");
1270         }
1271 }
1272
1273 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1274 {
1275         X509_STORE *store;
1276         X509_LOOKUP *lookup;
1277         if(!(store = X509_STORE_new())) goto end;
1278         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1279         if (lookup == NULL) goto end;
1280         if (CAfile) {
1281                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1282                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1283                         goto end;
1284                 }
1285         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1286                 
1287         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1288         if (lookup == NULL) goto end;
1289         if (CApath) {
1290                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1291                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1292                         goto end;
1293                 }
1294         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1295
1296         ERR_clear_error();
1297         return store;
1298         end:
1299         X509_STORE_free(store);
1300         return NULL;
1301 }
1302
1303 /* Try to load an engine in a shareable library */
1304 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1305         {
1306         ENGINE *e = ENGINE_by_id("dynamic");
1307         if (e)
1308                 {
1309                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1310                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1311                         {
1312                         ENGINE_free(e);
1313                         e = NULL;
1314                         }
1315                 }
1316         return e;
1317         }
1318
1319 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1320         {
1321         ENGINE *e = NULL;
1322
1323         if (engine)
1324                 {
1325                 if(strcmp(engine, "auto") == 0)
1326                         {
1327                         BIO_printf(err,"enabling auto ENGINE support\n");
1328                         ENGINE_register_all_complete();
1329                         return NULL;
1330                         }
1331                 if((e = ENGINE_by_id(engine)) == NULL
1332                         && (e = try_load_engine(err, engine, debug)) == NULL)
1333                         {
1334                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1335                         ERR_print_errors(err);
1336                         return NULL;
1337                         }
1338                 if (debug)
1339                         {
1340                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1341                                 0, err, 0);
1342                         }
1343                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1344                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1345                         {
1346                         BIO_printf(err,"can't use that engine\n");
1347                         ERR_print_errors(err);
1348                         ENGINE_free(e);
1349                         return NULL;
1350                         }
1351
1352                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1353
1354                 /* Free our "structural" reference. */
1355                 ENGINE_free(e);
1356                 }
1357         return e;
1358         }
1359
1360 int load_config(BIO *err, CONF *cnf)
1361         {
1362         if (!cnf)
1363                 cnf = config;
1364         if (!cnf)
1365                 return 1;
1366
1367         OPENSSL_load_builtin_modules();
1368
1369         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1370                 {
1371                 BIO_printf(err, "Error configuring OpenSSL\n");
1372                 ERR_print_errors(err);
1373                 return 0;
1374                 }
1375         return 1;
1376         }