ac18296e67f6f67c586fc1ebbf22488db96db0d1
[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 #define NON_MAIN
118 #include "apps.h"
119 #undef NON_MAIN
120 #include <openssl/err.h>
121 #include <openssl/x509.h>
122 #include <openssl/x509v3.h>
123 #include <openssl/pem.h>
124 #include <openssl/pkcs12.h>
125 #include <openssl/ui.h>
126 #include <openssl/safestack.h>
127 #include <openssl/engine.h>
128
129 #ifdef OPENSSL_SYS_WINDOWS
130 #define strcasecmp _stricmp
131 #else
132 #include <strings.h>
133 #endif
134
135 #ifdef OPENSSL_SYS_WINDOWS
136 #  include "bss_file.c"
137 #endif
138
139 typedef struct {
140         char *name;
141         unsigned long flag;
142         unsigned long mask;
143 } NAME_EX_TBL;
144
145 static UI_METHOD *ui_method = NULL;
146
147 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
148 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);
149
150 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
151 /* Looks like this stuff is worth moving into separate function */
152 static EVP_PKEY *
153 load_netscape_key(BIO *err, BIO *key, const char *file,
154                 const char *key_descrip, int format);
155 #endif
156
157 int app_init(long mesgwin);
158 #ifdef undef /* never finished - probably never will be :-) */
159 int args_from_file(char *file, int *argc, char **argv[])
160         {
161         FILE *fp;
162         int num,i;
163         unsigned int len;
164         static char *buf=NULL;
165         static char **arg=NULL;
166         char *p;
167         struct stat stbuf;
168
169         if (stat(file,&stbuf) < 0) return(0);
170
171         fp=fopen(file,"r");
172         if (fp == NULL)
173                 return(0);
174
175         *argc=0;
176         *argv=NULL;
177
178         len=(unsigned int)stbuf.st_size;
179         if (buf != NULL) OPENSSL_free(buf);
180         buf=(char *)OPENSSL_malloc(len+1);
181         if (buf == NULL) return(0);
182
183         len=fread(buf,1,len,fp);
184         if (len <= 1) return(0);
185         buf[len]='\0';
186
187         i=0;
188         for (p=buf; *p; p++)
189                 if (*p == '\n') i++;
190         if (arg != NULL) OPENSSL_free(arg);
191         arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));
192
193         *argv=arg;
194         num=0;
195         p=buf;
196         for (;;)
197                 {
198                 if (!*p) break;
199                 if (*p == '#') /* comment line */
200                         {
201                         while (*p && (*p != '\n')) p++;
202                         continue;
203                         }
204                 /* else we have a line */
205                 *(arg++)=p;
206                 num++;
207                 while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
208                         p++;
209                 if (!*p) break;
210                 if (*p == '\n')
211                         {
212                         *(p++)='\0';
213                         continue;
214                         }
215                 /* else it is a tab or space */
216                 p++;
217                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
218                         p++;
219                 if (!*p) break;
220                 if (*p == '\n')
221                         {
222                         p++;
223                         continue;
224                         }
225                 *(arg++)=p++;
226                 num++;
227                 while (*p && (*p != '\n')) p++;
228                 if (!*p) break;
229                 /* else *p == '\n' */
230                 *(p++)='\0';
231                 }
232         *argc=num;
233         return(1);
234         }
235 #endif
236
237 int str2fmt(char *s)
238         {
239         if      ((*s == 'D') || (*s == 'd'))
240                 return(FORMAT_ASN1);
241         else if ((*s == 'T') || (*s == 't'))
242                 return(FORMAT_TEXT);
243         else if ((*s == 'P') || (*s == 'p'))
244                 return(FORMAT_PEM);
245         else if ((*s == 'N') || (*s == 'n'))
246                 return(FORMAT_NETSCAPE);
247         else if ((*s == 'S') || (*s == 's'))
248                 return(FORMAT_SMIME);
249         else if ((*s == '1')
250                 || (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
251                 || (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
252                 return(FORMAT_PKCS12);
253         else if ((*s == 'E') || (*s == 'e'))
254                 return(FORMAT_ENGINE);
255         else
256                 return(FORMAT_UNDEF);
257         }
258
259 #if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
260 void program_name(char *in, char *out, int size)
261         {
262         int i,n;
263         char *p=NULL;
264
265         n=strlen(in);
266         /* find the last '/', '\' or ':' */
267         for (i=n-1; i>0; i--)
268                 {
269                 if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
270                         {
271                         p= &(in[i+1]);
272                         break;
273                         }
274                 }
275         if (p == NULL)
276                 p=in;
277         n=strlen(p);
278         /* strip off trailing .exe if present. */
279         if ((n > 4) && (p[n-4] == '.') &&
280                 ((p[n-3] == 'e') || (p[n-3] == 'E')) &&
281                 ((p[n-2] == 'x') || (p[n-2] == 'X')) &&
282                 ((p[n-1] == 'e') || (p[n-1] == 'E')))
283                 n-=4;
284         if (n > size-1)
285                 n=size-1;
286
287         for (i=0; i<n; i++)
288                 {
289                 if ((p[i] >= 'A') && (p[i] <= 'Z'))
290                         out[i]=p[i]-'A'+'a';
291                 else
292                         out[i]=p[i];
293                 }
294         out[n]='\0';
295         }
296 #else
297 #ifdef OPENSSL_SYS_VMS
298 void program_name(char *in, char *out, int size)
299         {
300         char *p=in, *q;
301         char *chars=":]>";
302
303         while(*chars != '\0')
304                 {
305                 q=strrchr(p,*chars);
306                 if (q > p)
307                         p = q + 1;
308                 chars++;
309                 }
310
311         q=strrchr(p,'.');
312         if (q == NULL)
313                 q = p + strlen(p);
314         strncpy(out,p,size-1);
315         if (q-p >= size)
316                 {
317                 out[size-1]='\0';
318                 }
319         else
320                 {
321                 out[q-p]='\0';
322                 }
323         }
324 #else
325 void program_name(char *in, char *out, int size)
326         {
327         char *p;
328
329         p=strrchr(in,'/');
330         if (p != NULL)
331                 p++;
332         else
333                 p=in;
334         strncpy(out,p,size-1);
335         out[size-1]='\0';
336         }
337 #endif
338 #endif
339
340 #ifdef OPENSSL_SYS_WIN32
341 int WIN32_rename(char *from, char *to)
342         {
343         /* Windows rename gives an error if 'to' exists, so delete it
344          * first and ignore file not found errror
345          */
346         if((remove(to) != 0) && (errno != ENOENT))
347                 return -1;
348 #undef rename
349         return rename(from, to);
350         }
351 #endif
352
353 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
354         {
355         int num,len,i;
356         char *p;
357
358         *argc=0;
359         *argv=NULL;
360
361         len=strlen(buf);
362         i=0;
363         if (arg->count == 0)
364                 {
365                 arg->count=20;
366                 arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
367                 }
368         for (i=0; i<arg->count; i++)
369                 arg->data[i]=NULL;
370
371         num=0;
372         p=buf;
373         for (;;)
374                 {
375                 /* first scan over white space */
376                 if (!*p) break;
377                 while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
378                         p++;
379                 if (!*p) break;
380
381                 /* The start of something good :-) */
382                 if (num >= arg->count)
383                         {
384                         arg->count+=20;
385                         arg->data=(char **)OPENSSL_realloc(arg->data,
386                                 sizeof(char *)*arg->count);
387                         if (argc == 0) return(0);
388                         }
389                 arg->data[num++]=p;
390
391                 /* now look for the end of this */
392                 if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
393                         {
394                         i= *(p++);
395                         arg->data[num-1]++; /* jump over quote */
396                         while (*p && (*p != i))
397                                 p++;
398                         *p='\0';
399                         }
400                 else
401                         {
402                         while (*p && ((*p != ' ') &&
403                                 (*p != '\t') && (*p != '\n')))
404                                 p++;
405
406                         if (*p == '\0')
407                                 p--;
408                         else
409                                 *p='\0';
410                         }
411                 p++;
412                 }
413         *argc=num;
414         *argv=arg->data;
415         return(1);
416         }
417
418 #ifndef APP_INIT
419 int app_init(long mesgwin)
420         {
421         return(1);
422         }
423 #endif
424
425
426 int dump_cert_text (BIO *out, X509 *x)
427 {
428         char buf[256];
429         X509_NAME_oneline(X509_get_subject_name(x),buf,256);
430         BIO_puts(out,"subject=");
431         BIO_puts(out,buf);
432
433         X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
434         BIO_puts(out,"\nissuer= ");
435         BIO_puts(out,buf);
436         BIO_puts(out,"\n");
437         return 0;
438 }
439
440 static int ui_open(UI *ui)
441         {
442         return UI_method_get_opener(UI_OpenSSL())(ui);
443         }
444 static int ui_read(UI *ui, UI_STRING *uis)
445         {
446         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
447                 && UI_get0_user_data(ui))
448                 {
449                 switch(UI_get_string_type(uis))
450                         {
451                 case UIT_PROMPT:
452                 case UIT_VERIFY:
453                         {
454                         const char *password =
455                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
456                         if (password[0] != '\0')
457                                 {
458                                 UI_set_result(ui, uis, password);
459                                 return 1;
460                                 }
461                         }
462                 default:
463                         break;
464                         }
465                 }
466         return UI_method_get_reader(UI_OpenSSL())(ui, uis);
467         }
468 static int ui_write(UI *ui, UI_STRING *uis)
469         {
470         if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
471                 && UI_get0_user_data(ui))
472                 {
473                 switch(UI_get_string_type(uis))
474                         {
475                 case UIT_PROMPT:
476                 case UIT_VERIFY:
477                         {
478                         const char *password =
479                                 ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
480                         if (password[0] != '\0')
481                                 return 1;
482                         }
483                 default:
484                         break;
485                         }
486                 }
487         return UI_method_get_writer(UI_OpenSSL())(ui, uis);
488         }
489 static int ui_close(UI *ui)
490         {
491         return UI_method_get_closer(UI_OpenSSL())(ui);
492         }
493 int setup_ui_method(void)
494         {
495         ui_method = UI_create_method("OpenSSL application user interface");
496         UI_method_set_opener(ui_method, ui_open);
497         UI_method_set_reader(ui_method, ui_read);
498         UI_method_set_writer(ui_method, ui_write);
499         UI_method_set_closer(ui_method, ui_close);
500         return 0;
501         }
502 void destroy_ui_method(void)
503         {
504         if(ui_method)
505                 {
506                 UI_destroy_method(ui_method);
507                 ui_method = NULL;
508                 }
509         }
510 int password_callback(char *buf, int bufsiz, int verify,
511         PW_CB_DATA *cb_tmp)
512         {
513         UI *ui = NULL;
514         int res = 0;
515         const char *prompt_info = NULL;
516         const char *password = NULL;
517         PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
518
519         if (cb_data)
520                 {
521                 if (cb_data->password)
522                         password = cb_data->password;
523                 if (cb_data->prompt_info)
524                         prompt_info = cb_data->prompt_info;
525                 }
526
527         if (password)
528                 {
529                 res = strlen(password);
530                 if (res > bufsiz)
531                         res = bufsiz;
532                 memcpy(buf, password, res);
533                 return res;
534                 }
535
536         ui = UI_new_method(ui_method);
537         if (ui)
538                 {
539                 int ok = 0;
540                 char *buff = NULL;
541                 int ui_flags = 0;
542                 char *prompt = NULL;
543
544                 prompt = UI_construct_prompt(ui, "pass phrase",
545                         cb_data->prompt_info);
546
547                 ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
548                 UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
549
550                 if (ok >= 0)
551                         ok = UI_add_input_string(ui,prompt,ui_flags,buf,
552                                 PW_MIN_LENGTH,BUFSIZ-1);
553                 if (ok >= 0 && verify)
554                         {
555                         buff = (char *)OPENSSL_malloc(bufsiz);
556                         ok = UI_add_verify_string(ui,prompt,ui_flags,buff,
557                                 PW_MIN_LENGTH,BUFSIZ-1, buf);
558                         }
559                 if (ok >= 0)
560                         do
561                                 {
562                                 ok = UI_process(ui);
563                                 }
564                         while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
565
566                 if (buff)
567                         {
568                         memset(buff,0,(unsigned int)bufsiz);
569                         OPENSSL_free(buff);
570                         }
571
572                 if (ok >= 0)
573                         res = strlen(buf);
574                 if (ok == -1)
575                         {
576                         BIO_printf(bio_err, "User interface error\n");
577                         ERR_print_errors(bio_err);
578                         memset(buf,0,(unsigned int)bufsiz);
579                         res = 0;
580                         }
581                 if (ok == -2)
582                         {
583                         BIO_printf(bio_err,"aborted!\n");
584                         memset(buf,0,(unsigned int)bufsiz);
585                         res = 0;
586                         }
587                 UI_free(ui);
588                 OPENSSL_free(prompt);
589                 }
590         return res;
591         }
592
593 static char *app_get_pass(BIO *err, char *arg, int keepbio);
594
595 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
596 {
597         int same;
598         if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
599         else same = 1;
600         if(arg1) {
601                 *pass1 = app_get_pass(err, arg1, same);
602                 if(!*pass1) return 0;
603         } else if(pass1) *pass1 = NULL;
604         if(arg2) {
605                 *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
606                 if(!*pass2) return 0;
607         } else if(pass2) *pass2 = NULL;
608         return 1;
609 }
610
611 static char *app_get_pass(BIO *err, char *arg, int keepbio)
612 {
613         char *tmp, tpass[APP_PASS_LEN];
614         static BIO *pwdbio = NULL;
615         int i;
616         if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
617         if(!strncmp(arg, "env:", 4)) {
618                 tmp = getenv(arg + 4);
619                 if(!tmp) {
620                         BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
621                         return NULL;
622                 }
623                 return BUF_strdup(tmp);
624         }
625         if(!keepbio || !pwdbio) {
626                 if(!strncmp(arg, "file:", 5)) {
627                         pwdbio = BIO_new_file(arg + 5, "r");
628                         if(!pwdbio) {
629                                 BIO_printf(err, "Can't open file %s\n", arg + 5);
630                                 return NULL;
631                         }
632                 } else if(!strncmp(arg, "fd:", 3)) {
633                         BIO *btmp;
634                         i = atoi(arg + 3);
635                         if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
636                         if((i < 0) || !pwdbio) {
637                                 BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
638                                 return NULL;
639                         }
640                         /* Can't do BIO_gets on an fd BIO so add a buffering BIO */
641                         btmp = BIO_new(BIO_f_buffer());
642                         pwdbio = BIO_push(btmp, pwdbio);
643                 } else if(!strcmp(arg, "stdin")) {
644                         pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
645                         if(!pwdbio) {
646                                 BIO_printf(err, "Can't open BIO for stdin\n");
647                                 return NULL;
648                         }
649                 } else {
650                         BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
651                         return NULL;
652                 }
653         }
654         i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
655         if(keepbio != 1) {
656                 BIO_free_all(pwdbio);
657                 pwdbio = NULL;
658         }
659         if(i <= 0) {
660                 BIO_printf(err, "Error reading password from BIO\n");
661                 return NULL;
662         }
663         tmp = strchr(tpass, '\n');
664         if(tmp) *tmp = 0;
665         return BUF_strdup(tpass);
666 }
667
668 int add_oid_section(BIO *err, CONF *conf)
669 {       
670         char *p;
671         STACK_OF(CONF_VALUE) *sktmp;
672         CONF_VALUE *cnf;
673         int i;
674         if(!(p=NCONF_get_string(conf,NULL,"oid_section")))
675                 {
676                 ERR_clear_error();
677                 return 1;
678                 }
679         if(!(sktmp = NCONF_get_section(conf, p))) {
680                 BIO_printf(err, "problem loading oid section %s\n", p);
681                 return 0;
682         }
683         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
684                 cnf = sk_CONF_VALUE_value(sktmp, i);
685                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
686                         BIO_printf(err, "problem creating object %s=%s\n",
687                                                          cnf->name, cnf->value);
688                         return 0;
689                 }
690         }
691         return 1;
692 }
693
694 X509 *load_cert(BIO *err, const char *file, int format,
695         const char *pass, ENGINE *e, const char *cert_descrip)
696         {
697         ASN1_HEADER *ah=NULL;
698         BUF_MEM *buf=NULL;
699         X509 *x=NULL;
700         BIO *cert;
701
702         if ((cert=BIO_new(BIO_s_file())) == NULL)
703                 {
704                 ERR_print_errors(err);
705                 goto end;
706                 }
707
708         if (file == NULL)
709                 {
710                 setvbuf(stdin, NULL, _IONBF, 0);
711                 BIO_set_fp(cert,stdin,BIO_NOCLOSE);
712                 }
713         else
714                 {
715                 if (BIO_read_filename(cert,file) <= 0)
716                         {
717                         BIO_printf(err, "Error opening %s %s\n",
718                                 cert_descrip, file);
719                         ERR_print_errors(err);
720                         goto end;
721                         }
722                 }
723
724         if      (format == FORMAT_ASN1)
725                 x=d2i_X509_bio(cert,NULL);
726         else if (format == FORMAT_NETSCAPE)
727                 {
728                 unsigned char *p,*op;
729                 int size=0,i;
730
731                 /* We sort of have to do it this way because it is sort of nice
732                  * to read the header first and check it, then
733                  * try to read the certificate */
734                 buf=BUF_MEM_new();
735                 for (;;)
736                         {
737                         if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
738                                 goto end;
739                         i=BIO_read(cert,&(buf->data[size]),1024*10);
740                         size+=i;
741                         if (i == 0) break;
742                         if (i < 0)
743                                 {
744                                 perror("reading certificate");
745                                 goto end;
746                                 }
747                         }
748                 p=(unsigned char *)buf->data;
749                 op=p;
750
751                 /* First load the header */
752                 if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
753                         goto end;
754                 if ((ah->header == NULL) || (ah->header->data == NULL) ||
755                         (strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
756                         ah->header->length) != 0))
757                         {
758                         BIO_printf(err,"Error reading header on certificate\n");
759                         goto end;
760                         }
761                 /* header is ok, so now read the object */
762                 p=op;
763                 ah->meth=X509_asn1_meth();
764                 if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
765                         goto end;
766                 x=(X509 *)ah->data;
767                 ah->data=NULL;
768                 }
769         else if (format == FORMAT_PEM)
770                 x=PEM_read_bio_X509_AUX(cert,NULL,
771                         (pem_password_cb *)password_callback, NULL);
772         else if (format == FORMAT_PKCS12)
773                 {
774                 PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);
775
776                 PKCS12_parse(p12, NULL, NULL, &x, NULL);
777                 PKCS12_free(p12);
778                 p12 = NULL;
779                 }
780         else    {
781                 BIO_printf(err,"bad input format specified for %s\n",
782                         cert_descrip);
783                 goto end;
784                 }
785 end:
786         if (x == NULL)
787                 {
788                 BIO_printf(err,"unable to load certificate\n");
789                 ERR_print_errors(err);
790                 }
791         if (ah != NULL) ASN1_HEADER_free(ah);
792         if (cert != NULL) BIO_free(cert);
793         if (buf != NULL) BUF_MEM_free(buf);
794         return(x);
795         }
796
797 EVP_PKEY *load_key(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_private_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_PrivateKey_bio(key, NULL);
836                 }
837         else if (format == FORMAT_PEM)
838                 {
839                 pkey=PEM_read_bio_PrivateKey(key,NULL,
840                         (pem_password_cb *)password_callback, &cb_data);
841                 }
842 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
843         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
844                 pkey = load_netscape_key(err, key, file, key_descrip, format);
845 #endif
846         else if (format == FORMAT_PKCS12)
847                 {
848                 PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);
849
850                 PKCS12_parse(p12, pass, &pkey, NULL, NULL);
851                 PKCS12_free(p12);
852                 p12 = NULL;
853                 }
854         else
855                 {
856                 BIO_printf(err,"bad input format specified for key file\n");
857                 goto end;
858                 }
859  end:
860         if (key != NULL) BIO_free(key);
861         if (pkey == NULL)
862                 BIO_printf(err,"unable to load %s\n", key_descrip);
863         return(pkey);
864         }
865
866 EVP_PKEY *load_pubkey(BIO *err, const char *file, int format,
867         const char *pass, ENGINE *e, const char *key_descrip)
868         {
869         BIO *key=NULL;
870         EVP_PKEY *pkey=NULL;
871         PW_CB_DATA cb_data;
872
873         cb_data.password = pass;
874         cb_data.prompt_info = file;
875
876         if (file == NULL)
877                 {
878                 BIO_printf(err,"no keyfile specified\n");
879                 goto end;
880                 }
881         if (format == FORMAT_ENGINE)
882                 {
883                 if (!e)
884                         BIO_printf(bio_err,"no engine specified\n");
885                 else
886                         pkey = ENGINE_load_public_key(e, file,
887                                 ui_method, &cb_data);
888                 goto end;
889                 }
890         key=BIO_new(BIO_s_file());
891         if (key == NULL)
892                 {
893                 ERR_print_errors(err);
894                 goto end;
895                 }
896         if (BIO_read_filename(key,file) <= 0)
897                 {
898                 BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
899                 ERR_print_errors(err);
900                 goto end;
901                 }
902         if (format == FORMAT_ASN1)
903                 {
904                 pkey=d2i_PUBKEY_bio(key, NULL);
905                 }
906         else if (format == FORMAT_PEM)
907                 {
908                 pkey=PEM_read_bio_PUBKEY(key,NULL,
909                         (pem_password_cb *)password_callback, &cb_data);
910                 }
911 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
912         else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
913                 pkey = load_netscape_key(err, key, file, key_descrip, format);
914 #endif
915         else
916                 {
917                 BIO_printf(err,"bad input format specified for key file\n");
918                 goto end;
919                 }
920  end:
921         if (key != NULL) BIO_free(key);
922         if (pkey == NULL)
923                 BIO_printf(err,"unable to load %s\n", key_descrip);
924         return(pkey);
925         }
926
927 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
928 static EVP_PKEY *
929 load_netscape_key(BIO *err, BIO *key, const char *file,
930                 const char *key_descrip, int format)
931         {
932         EVP_PKEY *pkey;
933         BUF_MEM *buf;
934         RSA     *rsa;
935         const unsigned char *p;
936         int size, i;
937
938         buf=BUF_MEM_new();
939         pkey = EVP_PKEY_new();
940         size = 0;
941         if (buf == NULL || pkey == NULL)
942                 goto error;
943         for (;;)
944                 {
945                 if (!BUF_MEM_grow(buf,size+1024*10))
946                         goto error;
947                 i = BIO_read(key, &(buf->data[size]), 1024*10);
948                 size += i;
949                 if (i == 0)
950                         break;
951                 if (i < 0)
952                         {
953                                 BIO_printf(err, "Error reading %s %s",
954                                         key_descrip, file);
955                                 goto error;
956                         }
957                 }
958         p=(unsigned char *)buf->data;
959         rsa = d2i_RSA_NET(NULL,&p,(long)size,NULL,
960                 (format == FORMAT_IISSGC ? 1 : 0));
961         if (rsa == NULL)
962                 goto error;
963         BUF_MEM_free(buf);
964         EVP_PKEY_set1_RSA(pkey, rsa);
965         return pkey;
966 error:
967         BUF_MEM_free(buf);
968         EVP_PKEY_free(pkey);
969         return NULL;
970         }
971 #endif /* ndef OPENSSL_NO_RC4 */
972
973 STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
974         const char *pass, ENGINE *e, const char *cert_descrip)
975         {
976         BIO *certs;
977         int i;
978         STACK_OF(X509) *othercerts = NULL;
979         STACK_OF(X509_INFO) *allcerts = NULL;
980         X509_INFO *xi;
981         PW_CB_DATA cb_data;
982
983         cb_data.password = pass;
984         cb_data.prompt_info = file;
985
986         if((certs = BIO_new(BIO_s_file())) == NULL)
987                 {
988                 ERR_print_errors(err);
989                 goto end;
990                 }
991
992         if (file == NULL)
993                 BIO_set_fp(certs,stdin,BIO_NOCLOSE);
994         else
995                 {
996                 if (BIO_read_filename(certs,file) <= 0)
997                         {
998                         BIO_printf(err, "Error opening %s %s\n",
999                                 cert_descrip, file);
1000                         ERR_print_errors(err);
1001                         goto end;
1002                         }
1003                 }
1004
1005         if      (format == FORMAT_PEM)
1006                 {
1007                 othercerts = sk_X509_new_null();
1008                 if(!othercerts)
1009                         {
1010                         sk_X509_free(othercerts);
1011                         othercerts = NULL;
1012                         goto end;
1013                         }
1014                 allcerts = PEM_X509_INFO_read_bio(certs, NULL,
1015                                 (pem_password_cb *)password_callback, &cb_data);
1016                 for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
1017                         {
1018                         xi = sk_X509_INFO_value (allcerts, i);
1019                         if (xi->x509)
1020                                 {
1021                                 sk_X509_push(othercerts, xi->x509);
1022                                 xi->x509 = NULL;
1023                                 }
1024                         }
1025                 goto end;
1026                 }
1027         else    {
1028                 BIO_printf(err,"bad input format specified for %s\n",
1029                         cert_descrip);
1030                 goto end;
1031                 }
1032 end:
1033         if (othercerts == NULL)
1034                 {
1035                 BIO_printf(err,"unable to load certificates\n");
1036                 ERR_print_errors(err);
1037                 }
1038         if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
1039         if (certs != NULL) BIO_free(certs);
1040         return(othercerts);
1041         }
1042
1043
1044 #define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1045 /* Return error for unknown extensions */
1046 #define X509V3_EXT_DEFAULT              0
1047 /* Print error for unknown extensions */
1048 #define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1049 /* ASN1 parse unknown extensions */
1050 #define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1051 /* BIO_dump unknown extensions */
1052 #define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1053
1054 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1055                          X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1056
1057 int set_cert_ex(unsigned long *flags, const char *arg)
1058 {
1059         static const NAME_EX_TBL cert_tbl[] = {
1060                 { "compatible", X509_FLAG_COMPAT, 0xffffffffl},
1061                 { "ca_default", X509_FLAG_CA, 0xffffffffl},
1062                 { "no_header", X509_FLAG_NO_HEADER, 0},
1063                 { "no_version", X509_FLAG_NO_VERSION, 0},
1064                 { "no_serial", X509_FLAG_NO_SERIAL, 0},
1065                 { "no_signame", X509_FLAG_NO_SIGNAME, 0},
1066                 { "no_validity", X509_FLAG_NO_VALIDITY, 0},
1067                 { "no_subject", X509_FLAG_NO_SUBJECT, 0},
1068                 { "no_issuer", X509_FLAG_NO_ISSUER, 0},
1069                 { "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1070                 { "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1071                 { "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1072                 { "no_aux", X509_FLAG_NO_AUX, 0},
1073                 { "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1074                 { "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1075                 { "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1076                 { "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1077                 { NULL, 0, 0}
1078         };
1079         return set_multi_opts(flags, arg, cert_tbl);
1080 }
1081
1082 int set_name_ex(unsigned long *flags, const char *arg)
1083 {
1084         static const NAME_EX_TBL ex_tbl[] = {
1085                 { "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1086                 { "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1087                 { "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1088                 { "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1089                 { "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1090                 { "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1091                 { "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1092                 { "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1093                 { "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1094                 { "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1095                 { "compat", XN_FLAG_COMPAT, 0xffffffffL},
1096                 { "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1097                 { "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1098                 { "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1099                 { "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1100                 { "dn_rev", XN_FLAG_DN_REV, 0},
1101                 { "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1102                 { "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1103                 { "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1104                 { "align", XN_FLAG_FN_ALIGN, 0},
1105                 { "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1106                 { "space_eq", XN_FLAG_SPC_EQ, 0},
1107                 { "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1108                 { "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1109                 { "oneline", XN_FLAG_ONELINE, 0xffffffffL},
1110                 { "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1111                 { "ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1112                 { NULL, 0, 0}
1113         };
1114         return set_multi_opts(flags, arg, ex_tbl);
1115 }
1116
1117 int set_ext_copy(int *copy_type, const char *arg)
1118 {
1119         if (!strcasecmp(arg, "none"))
1120                 *copy_type = EXT_COPY_NONE;
1121         else if (!strcasecmp(arg, "copy"))
1122                 *copy_type = EXT_COPY_ADD;
1123         else if (!strcasecmp(arg, "copyall"))
1124                 *copy_type = EXT_COPY_ALL;
1125         else
1126                 return 0;
1127         return 1;
1128 }
1129
1130 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1131 {
1132         STACK_OF(X509_EXTENSION) *exts = NULL;
1133         X509_EXTENSION *ext, *tmpext;
1134         ASN1_OBJECT *obj;
1135         int i, idx, ret = 0;
1136         if (!x || !req || (copy_type == EXT_COPY_NONE))
1137                 return 1;
1138         exts = X509_REQ_get_extensions(req);
1139
1140         for(i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1141                 ext = sk_X509_EXTENSION_value(exts, i);
1142                 obj = X509_EXTENSION_get_object(ext);
1143                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1144                 /* Does extension exist? */
1145                 if (idx != -1) {
1146                         /* If normal copy don't override existing extension */
1147                         if (copy_type == EXT_COPY_ADD)
1148                                 continue;
1149                         /* Delete all extensions of same type */
1150                         do {
1151                                 tmpext = X509_get_ext(x, idx);
1152                                 X509_delete_ext(x, idx);
1153                                 X509_EXTENSION_free(tmpext);
1154                                 idx = X509_get_ext_by_OBJ(x, obj, -1);
1155                         } while (idx != -1);
1156                 }
1157                 if (!X509_add_ext(x, ext, -1))
1158                         goto end;
1159         }
1160
1161         ret = 1;
1162
1163         end:
1164
1165         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1166
1167         return ret;
1168 }
1169                 
1170                 
1171                         
1172
1173 static int set_multi_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1174 {
1175         STACK_OF(CONF_VALUE) *vals;
1176         CONF_VALUE *val;
1177         int i, ret = 1;
1178         if(!arg) return 0;
1179         vals = X509V3_parse_list(arg);
1180         for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1181                 val = sk_CONF_VALUE_value(vals, i);
1182                 if (!set_table_opts(flags, val->name, in_tbl))
1183                         ret = 0;
1184         }
1185         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1186         return ret;
1187 }
1188
1189 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
1190 {
1191         char c;
1192         const NAME_EX_TBL *ptbl;
1193         c = arg[0];
1194
1195         if(c == '-') {
1196                 c = 0;
1197                 arg++;
1198         } else if (c == '+') {
1199                 c = 1;
1200                 arg++;
1201         } else c = 1;
1202
1203         for(ptbl = in_tbl; ptbl->name; ptbl++) {
1204                 if(!strcasecmp(arg, ptbl->name)) {
1205                         *flags &= ~ptbl->mask;
1206                         if(c) *flags |= ptbl->flag;
1207                         else *flags &= ~ptbl->flag;
1208                         return 1;
1209                 }
1210         }
1211         return 0;
1212 }
1213
1214 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
1215 {
1216         char buf[256];
1217         char mline = 0;
1218         int indent = 0;
1219         if(title) BIO_puts(out, title);
1220         if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1221                 mline = 1;
1222                 indent = 4;
1223         }
1224         if(lflags == XN_FLAG_COMPAT) {
1225                 X509_NAME_oneline(nm,buf,256);
1226                 BIO_puts(out,buf);
1227                 BIO_puts(out, "\n");
1228         } else {
1229                 if(mline) BIO_puts(out, "\n");
1230                 X509_NAME_print_ex(out, nm, indent, lflags);
1231                 BIO_puts(out, "\n");
1232         }
1233 }
1234
1235 X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1236 {
1237         X509_STORE *store;
1238         X509_LOOKUP *lookup;
1239         if(!(store = X509_STORE_new())) goto end;
1240         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
1241         if (lookup == NULL) goto end;
1242         if (CAfile) {
1243                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
1244                         BIO_printf(bp, "Error loading file %s\n", CAfile);
1245                         goto end;
1246                 }
1247         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
1248                 
1249         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
1250         if (lookup == NULL) goto end;
1251         if (CApath) {
1252                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
1253                         BIO_printf(bp, "Error loading directory %s\n", CApath);
1254                         goto end;
1255                 }
1256         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
1257
1258         ERR_clear_error();
1259         return store;
1260         end:
1261         X509_STORE_free(store);
1262         return NULL;
1263 }
1264
1265 /* Try to load an engine in a shareable library */
1266 static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1267         {
1268         ENGINE *e = ENGINE_by_id("dynamic");
1269         if (e)
1270                 {
1271                 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1272                         || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
1273                         {
1274                         ENGINE_free(e);
1275                         e = NULL;
1276                         }
1277                 }
1278         return e;
1279         }
1280
1281 ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1282         {
1283         ENGINE *e = NULL;
1284
1285         if (engine)
1286                 {
1287                 if(strcmp(engine, "auto") == 0)
1288                         {
1289                         BIO_printf(err,"enabling auto ENGINE support\n");
1290                         ENGINE_register_all_complete();
1291                         return NULL;
1292                         }
1293                 if((e = ENGINE_by_id(engine)) == NULL
1294                         && (e = try_load_engine(err, engine, debug)) == NULL)
1295                         {
1296                         BIO_printf(err,"invalid engine \"%s\"\n", engine);
1297                         ERR_print_errors(err);
1298                         return NULL;
1299                         }
1300                 if (debug)
1301                         {
1302                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
1303                                 0, err, 0);
1304                         }
1305                 ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1306                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
1307                         {
1308                         BIO_printf(err,"can't use that engine\n");
1309                         ERR_print_errors(err);
1310                         ENGINE_free(e);
1311                         return NULL;
1312                         }
1313
1314                 BIO_printf(err,"engine \"%s\" set.\n", ENGINE_get_id(e));
1315
1316                 /* Free our "structural" reference. */
1317                 ENGINE_free(e);
1318                 }
1319         return e;
1320         }
1321
1322 int load_config(BIO *err, CONF *cnf)
1323         {
1324         if (!cnf)
1325                 cnf = config;
1326         if (!cnf)
1327                 return 1;
1328
1329         OPENSSL_load_builtin_modules();
1330
1331         if (CONF_modules_load(cnf, NULL, 0) <= 0)
1332                 {
1333                 BIO_printf(err, "Error configuring OpenSSL\n");
1334                 ERR_print_errors(err);
1335                 return 0;
1336                 }
1337         return 1;
1338         }