fd26ed8343443560eca87fb044d5abaf7a683b2d
[openssl.git] / apps / req.c
1 /* apps/req.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <time.h>
62 #include <string.h>
63 #ifdef NO_STDIO
64 #define APPS_WIN16
65 #endif
66 #include "apps.h"
67 #include <openssl/bio.h>
68 #include <openssl/evp.h>
69 #include <openssl/conf.h>
70 #include <openssl/err.h>
71 #include <openssl/asn1.h>
72 #include <openssl/x509.h>
73 #include <openssl/x509v3.h>
74 #include <openssl/objects.h>
75 #include <openssl/pem.h>
76
77 #define SECTION         "req"
78
79 #define BITS            "default_bits"
80 #define KEYFILE         "default_keyfile"
81 #define PROMPT          "prompt"
82 #define DISTINGUISHED_NAME      "distinguished_name"
83 #define ATTRIBUTES      "attributes"
84 #define V3_EXTENSIONS   "x509_extensions"
85 #define REQ_EXTENSIONS  "req_extensions"
86 #define STRING_MASK     "string_mask"
87
88 #define DEFAULT_KEY_LENGTH      512
89 #define MIN_KEY_LENGTH          384
90
91 #undef PROG
92 #define PROG    req_main
93
94 /* -inform arg  - input format - default PEM (DER or PEM)
95  * -outform arg - output format - default PEM
96  * -in arg      - input file - default stdin
97  * -out arg     - output file - default stdout
98  * -verify      - check request signature
99  * -noout       - don't print stuff out.
100  * -text        - print out human readable text.
101  * -nodes       - no des encryption
102  * -config file - Load configuration file.
103  * -key file    - make a request using key in file (or use it for verification).
104  * -keyform     - key file format.
105  * -rand file(s) - load the file(s) into the PRNG.
106  * -newkey      - make a key and a request.
107  * -modulus     - print RSA modulus.
108  * -x509        - output a self signed X509 structure instead.
109  * -asn1-kludge - output new certificate request in a format that some CA's
110  *                require.  This format is wrong
111  */
112
113 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
114 static int prompt_info(X509_REQ *req,
115                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
116                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
117 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
118                                 STACK_OF(CONF_VALUE) *attr, int attribs);
119 static int add_attribute_object(X509_REQ *req, char *text,
120                                 char *def, char *value, int nid, int min,
121                                 int max);
122 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
123         int nid,int min,int max);
124 #ifndef NO_RSA
125 static void MS_CALLBACK req_cb(int p,int n,void *arg);
126 #endif
127 static int req_check_len(int len,int min,int max);
128 static int check_end(char *str, char *end);
129 #ifndef MONOLITH
130 static char *default_config_file=NULL;
131 static LHASH *config=NULL;
132 #endif
133 static LHASH *req_conf=NULL;
134
135 #define TYPE_RSA        1
136 #define TYPE_DSA        2
137 #define TYPE_DH         3
138
139 int MAIN(int, char **);
140
141 int MAIN(int argc, char **argv)
142         {
143 #ifndef NO_DSA
144         DSA *dsa_params=NULL;
145 #endif
146         int ex=1,x509=0,days=30;
147         X509 *x509ss=NULL;
148         X509_REQ *req=NULL;
149         EVP_PKEY *pkey=NULL;
150         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
151         BIO *in=NULL,*out=NULL;
152         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
153         int nodes=0,kludge=0,newhdr=0;
154         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
155         char *extensions = NULL;
156         char *req_exts = NULL;
157         EVP_CIPHER *cipher=NULL;
158         int modulus=0;
159         char *inrand=NULL;
160         char *passargin = NULL, *passargout = NULL;
161         char *passin = NULL, *passout = NULL;
162         char *p;
163         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
164 #ifndef MONOLITH
165         MS_STATIC char config_name[256];
166 #endif
167
168         req_conf = NULL;
169 #ifndef NO_DES
170         cipher=EVP_des_ede3_cbc();
171 #endif
172         apps_startup();
173
174         if (bio_err == NULL)
175                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
176                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
177
178         infile=NULL;
179         outfile=NULL;
180         informat=FORMAT_PEM;
181         outformat=FORMAT_PEM;
182
183         prog=argv[0];
184         argc--;
185         argv++;
186         while (argc >= 1)
187                 {
188                 if      (strcmp(*argv,"-inform") == 0)
189                         {
190                         if (--argc < 1) goto bad;
191                         informat=str2fmt(*(++argv));
192                         }
193                 else if (strcmp(*argv,"-outform") == 0)
194                         {
195                         if (--argc < 1) goto bad;
196                         outformat=str2fmt(*(++argv));
197                         }
198                 else if (strcmp(*argv,"-key") == 0)
199                         {
200                         if (--argc < 1) goto bad;
201                         keyfile= *(++argv);
202                         }
203                 else if (strcmp(*argv,"-new") == 0)
204                         {
205                         pkey_type=TYPE_RSA;
206                         newreq=1;
207                         }
208                 else if (strcmp(*argv,"-config") == 0)
209                         {       
210                         if (--argc < 1) goto bad;
211                         template= *(++argv);
212                         }
213                 else if (strcmp(*argv,"-keyform") == 0)
214                         {
215                         if (--argc < 1) goto bad;
216                         keyform=str2fmt(*(++argv));
217                         }
218                 else if (strcmp(*argv,"-in") == 0)
219                         {
220                         if (--argc < 1) goto bad;
221                         infile= *(++argv);
222                         }
223                 else if (strcmp(*argv,"-out") == 0)
224                         {
225                         if (--argc < 1) goto bad;
226                         outfile= *(++argv);
227                         }
228                 else if (strcmp(*argv,"-keyout") == 0)
229                         {
230                         if (--argc < 1) goto bad;
231                         keyout= *(++argv);
232                         }
233                 else if (strcmp(*argv,"-passin") == 0)
234                         {
235                         if (--argc < 1) goto bad;
236                         passargin= *(++argv);
237                         }
238                 else if (strcmp(*argv,"-passout") == 0)
239                         {
240                         if (--argc < 1) goto bad;
241                         passargout= *(++argv);
242                         }
243                 else if (strcmp(*argv,"-rand") == 0)
244                         {
245                         if (--argc < 1) goto bad;
246                         inrand= *(++argv);
247                         }
248                 else if (strcmp(*argv,"-newkey") == 0)
249                         {
250                         int is_numeric;
251
252                         if (--argc < 1) goto bad;
253                         p= *(++argv);
254                         is_numeric = p[0] >= '0' && p[0] <= '9';
255                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
256                                 {
257                                 pkey_type=TYPE_RSA;
258                                 if(!is_numeric)
259                                     p+=4;
260                                 newkey= atoi(p);
261                                 }
262                         else
263 #ifndef NO_DSA
264                                 if (strncmp("dsa:",p,4) == 0)
265                                 {
266                                 X509 *xtmp=NULL;
267                                 EVP_PKEY *dtmp;
268
269                                 pkey_type=TYPE_DSA;
270                                 p+=4;
271                                 if ((in=BIO_new_file(p,"r")) == NULL)
272                                         {
273                                         perror(p);
274                                         goto end;
275                                         }
276                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
277                                         {
278                                         ERR_clear_error();
279                                         (void)BIO_reset(in);
280                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
281                                                 {
282                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
283                                                 goto end;
284                                                 }
285
286                                         dtmp=X509_get_pubkey(xtmp);
287                                         if (dtmp->type == EVP_PKEY_DSA)
288                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
289                                         EVP_PKEY_free(dtmp);
290                                         X509_free(xtmp);
291                                         if (dsa_params == NULL)
292                                                 {
293                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
294                                                 goto end;
295                                                 }
296                                         }
297                                 BIO_free(in);
298                                 newkey=BN_num_bits(dsa_params->p);
299                                 in=NULL;
300                                 }
301                         else 
302 #endif
303 #ifndef NO_DH
304                                 if (strncmp("dh:",p,4) == 0)
305                                 {
306                                 pkey_type=TYPE_DH;
307                                 p+=3;
308                                 }
309                         else
310 #endif
311                                 pkey_type=TYPE_RSA;
312
313                         newreq=1;
314                         }
315                 else if (strcmp(*argv,"-newhdr") == 0)
316                         newhdr=1;
317                 else if (strcmp(*argv,"-modulus") == 0)
318                         modulus=1;
319                 else if (strcmp(*argv,"-verify") == 0)
320                         verify=1;
321                 else if (strcmp(*argv,"-nodes") == 0)
322                         nodes=1;
323                 else if (strcmp(*argv,"-noout") == 0)
324                         noout=1;
325                 else if (strcmp(*argv,"-text") == 0)
326                         text=1;
327                 else if (strcmp(*argv,"-x509") == 0)
328                         x509=1;
329                 else if (strcmp(*argv,"-asn1-kludge") == 0)
330                         kludge=1;
331                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
332                         kludge=0;
333                 else if (strcmp(*argv,"-days") == 0)
334                         {
335                         if (--argc < 1) goto bad;
336                         days= atoi(*(++argv));
337                         if (days == 0) days=30;
338                         }
339                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
340                         {
341                         /* ok */
342                         digest=md_alg;
343                         }
344                 else if (strcmp(*argv,"-extensions") == 0)
345                         {
346                         if (--argc < 1) goto bad;
347                         extensions = *(++argv);
348                         }
349                 else if (strcmp(*argv,"-reqexts") == 0)
350                         {
351                         if (--argc < 1) goto bad;
352                         req_exts = *(++argv);
353                         }
354                 else
355                         {
356                         BIO_printf(bio_err,"unknown option %s\n",*argv);
357                         badops=1;
358                         break;
359                         }
360                 argc--;
361                 argv++;
362                 }
363
364         if (badops)
365                 {
366 bad:
367                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
368                 BIO_printf(bio_err,"where options  are\n");
369                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
370                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
371                 BIO_printf(bio_err," -in arg        input file\n");
372                 BIO_printf(bio_err," -out arg       output file\n");
373                 BIO_printf(bio_err," -text          text form of request\n");
374                 BIO_printf(bio_err," -noout         do not output REQ\n");
375                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
376                 BIO_printf(bio_err," -modulus       RSA modulus\n");
377                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
378                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
379                 BIO_printf(bio_err," -keyform arg   key file format\n");
380                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
381                 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
382                 BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
383                 BIO_printf(bio_err,"                the random number generator\n");
384                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
385                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
386
387                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
388                 BIO_printf(bio_err," -config file   request template file.\n");
389                 BIO_printf(bio_err," -new           new request.\n");
390                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
391                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
392                 BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
393                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
394                 BIO_printf(bio_err,"                have been reported as requiring\n");
395                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
396                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
397                 goto end;
398                 }
399
400         ERR_load_crypto_strings();
401         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
402                 BIO_printf(bio_err, "Error getting passwords\n");
403                 goto end;
404         }
405
406 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
407         /* Lets load up our environment a little */
408         p=getenv("OPENSSL_CONF");
409         if (p == NULL)
410                 p=getenv("SSLEAY_CONF");
411         if (p == NULL)
412                 {
413                 strcpy(config_name,X509_get_default_cert_area());
414 #ifndef VMS
415                 strcat(config_name,"/");
416 #endif
417                 strcat(config_name,OPENSSL_CONF);
418                 p=config_name;
419                 }
420         default_config_file=p;
421         config=CONF_load(config,p,NULL);
422 #endif
423
424         if (template != NULL)
425                 {
426                 long errline;
427
428                 BIO_printf(bio_err,"Using configuration from %s\n",template);
429                 req_conf=CONF_load(NULL,template,&errline);
430                 if (req_conf == NULL)
431                         {
432                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
433                         goto end;
434                         }
435                 }
436         else
437                 {
438                 req_conf=config;
439                 BIO_printf(bio_err,"Using configuration from %s\n",
440                         default_config_file);
441                 if (req_conf == NULL)
442                         {
443                         BIO_printf(bio_err,"Unable to load config info\n");
444                         }
445                 }
446
447         if (req_conf != NULL)
448                 {
449                 p=CONF_get_string(req_conf,NULL,"oid_file");
450                 if (p != NULL)
451                         {
452                         BIO *oid_bio;
453
454                         oid_bio=BIO_new_file(p,"r");
455                         if (oid_bio == NULL) 
456                                 {
457                                 /*
458                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
459                                 ERR_print_errors(bio_err);
460                                 */
461                                 }
462                         else
463                                 {
464                                 OBJ_create_objects(oid_bio);
465                                 BIO_free(oid_bio);
466                                 }
467                         }
468                 }
469                 if(!add_oid_section(bio_err, req_conf)) goto end;
470
471         if ((md_alg == NULL) &&
472                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
473                 {
474                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
475                         digest=md_alg;
476                 }
477
478         if(!extensions)
479                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
480         if(extensions) {
481                 /* Check syntax of file */
482                 X509V3_CTX ctx;
483                 X509V3_set_ctx_test(&ctx);
484                 X509V3_set_conf_lhash(&ctx, req_conf);
485                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
486                         BIO_printf(bio_err,
487                          "Error Loading extension section %s\n", extensions);
488                         goto end;
489                 }
490         }
491
492         if(!passin)
493                 passin = CONF_get_string(req_conf, SECTION, "input_password");
494
495         if(!passout)
496                 passout = CONF_get_string(req_conf, SECTION, "output_password");
497
498         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
499
500         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
501                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
502                 goto end;
503         }
504
505         if(!req_exts)
506                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
507         if(req_exts) {
508                 /* Check syntax of file */
509                 X509V3_CTX ctx;
510                 X509V3_set_ctx_test(&ctx);
511                 X509V3_set_conf_lhash(&ctx, req_conf);
512                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
513                         BIO_printf(bio_err,
514                          "Error Loading request extension section %s\n",
515                                                                 req_exts);
516                         goto end;
517                 }
518         }
519
520         in=BIO_new(BIO_s_file());
521         out=BIO_new(BIO_s_file());
522         if ((in == NULL) || (out == NULL))
523                 goto end;
524
525         if (keyfile != NULL)
526                 {
527                 if (BIO_read_filename(in,keyfile) <= 0)
528                         {
529                         perror(keyfile);
530                         goto end;
531                         }
532
533                 if (keyform == FORMAT_ASN1)
534                         pkey=d2i_PrivateKey_bio(in,NULL);
535                 else if (keyform == FORMAT_PEM)
536                         {
537                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
538                         }
539                 else
540                         {
541                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
542                         goto end;
543                         }
544
545                 if (pkey == NULL)
546                         {
547                         BIO_printf(bio_err,"unable to load Private key\n");
548                         goto end;
549                         }
550                 }
551
552         if (newreq && (pkey == NULL))
553                 {
554                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
555                 app_RAND_load_file(randfile, bio_err, 0);
556                 if (inrand)
557                         app_RAND_load_files(inrand);
558         
559                 if (newkey <= 0)
560                         {
561                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
562                         if (newkey <= 0)
563                                 newkey=DEFAULT_KEY_LENGTH;
564                         }
565
566                 if (newkey < MIN_KEY_LENGTH)
567                         {
568                         BIO_printf(bio_err,"private key length is too short,\n");
569                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
570                         goto end;
571                         }
572                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
573                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
574
575                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
576
577 #ifndef NO_RSA
578                 if (pkey_type == TYPE_RSA)
579                         {
580                         if (!EVP_PKEY_assign_RSA(pkey,
581                                 RSA_generate_key(newkey,0x10001,
582                                         req_cb,bio_err)))
583                                 goto end;
584                         }
585                 else
586 #endif
587 #ifndef NO_DSA
588                         if (pkey_type == TYPE_DSA)
589                         {
590                         if (!DSA_generate_key(dsa_params)) goto end;
591                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
592                         dsa_params=NULL;
593                         }
594 #endif
595
596                 app_RAND_write_file(randfile, bio_err);
597
598                 if (pkey == NULL) goto end;
599
600                 if (keyout == NULL)
601                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
602
603                 if (keyout == NULL)
604                         {
605                         BIO_printf(bio_err,"writing new private key to stdout\n");
606                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
607                         }
608                 else
609                         {
610                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
611                         if (BIO_write_filename(out,keyout) <= 0)
612                                 {
613                                 perror(keyout);
614                                 goto end;
615                                 }
616                         }
617
618                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
619                 if (p == NULL)
620                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
621                 if ((p != NULL) && (strcmp(p,"no") == 0))
622                         cipher=NULL;
623                 if (nodes) cipher=NULL;
624                 
625                 i=0;
626 loop:
627                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
628                         NULL,0,NULL,passout))
629                         {
630                         if ((ERR_GET_REASON(ERR_peek_error()) ==
631                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
632                                 {
633                                 ERR_clear_error();
634                                 i++;
635                                 goto loop;
636                                 }
637                         goto end;
638                         }
639                 BIO_printf(bio_err,"-----\n");
640                 }
641
642         if (!newreq)
643                 {
644                 /* Since we are using a pre-existing certificate
645                  * request, the kludge 'format' info should not be
646                  * changed. */
647                 kludge= -1;
648                 if (infile == NULL)
649                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
650                 else
651                         {
652                         if (BIO_read_filename(in,infile) <= 0)
653                                 {
654                                 perror(infile);
655                                 goto end;
656                                 }
657                         }
658
659                 if      (informat == FORMAT_ASN1)
660                         req=d2i_X509_REQ_bio(in,NULL);
661                 else if (informat == FORMAT_PEM)
662                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
663                 else
664                         {
665                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
666                         goto end;
667                         }
668                 if (req == NULL)
669                         {
670                         BIO_printf(bio_err,"unable to load X509 request\n");
671                         goto end;
672                         }
673                 }
674
675         if (newreq || x509)
676                 {
677 #ifndef NO_DSA
678                 if (pkey->type == EVP_PKEY_DSA)
679                         digest=EVP_dss1();
680 #endif
681
682                 if (pkey == NULL)
683                         {
684                         BIO_printf(bio_err,"you need to specify a private key\n");
685                         goto end;
686                         }
687                 if (req == NULL)
688                         {
689                         req=X509_REQ_new();
690                         if (req == NULL)
691                                 {
692                                 goto end;
693                                 }
694
695                         i=make_REQ(req,pkey,!x509);
696                         if (kludge >= 0)
697                                 req->req_info->req_kludge=kludge;
698                         if (!i)
699                                 {
700                                 BIO_printf(bio_err,"problems making Certificate Request\n");
701                                 goto end;
702                                 }
703                         }
704                 if (x509)
705                         {
706                         EVP_PKEY *tmppkey;
707                         X509V3_CTX ext_ctx;
708                         if ((x509ss=X509_new()) == NULL) goto end;
709
710                         /* Set version to V3 */
711                         if(!X509_set_version(x509ss, 2)) goto end;
712                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
713
714                         X509_set_issuer_name(x509ss,
715                                 X509_REQ_get_subject_name(req));
716                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
717                         X509_gmtime_adj(X509_get_notAfter(x509ss),
718                                 (long)60*60*24*days);
719                         X509_set_subject_name(x509ss,
720                                 X509_REQ_get_subject_name(req));
721                         tmppkey = X509_REQ_get_pubkey(req);
722                         X509_set_pubkey(x509ss,tmppkey);
723                         EVP_PKEY_free(tmppkey);
724
725                         /* Set up V3 context struct */
726
727                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
728                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
729
730                         /* Add extensions */
731                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
732                                         &ext_ctx, extensions, x509ss))
733                             {
734                             BIO_printf(bio_err,
735                                        "Error Loading extension section %s\n",
736                                        extensions);
737                             goto end;
738                             }
739
740                         if (!(i=X509_sign(x509ss,pkey,digest)))
741                                 goto end;
742                         }
743                 else
744                         {
745                         X509V3_CTX ext_ctx;
746
747                         /* Set up V3 context struct */
748
749                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
750                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
751
752                         /* Add extensions */
753                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
754                                         &ext_ctx, req_exts, req))
755                             {
756                             BIO_printf(bio_err,
757                                        "Error Loading extension section %s\n",
758                                        req_exts);
759                             goto end;
760                             }
761                         if (!(i=X509_REQ_sign(req,pkey,digest)))
762                                 goto end;
763                         }
764                 }
765
766         if (verify && !x509)
767                 {
768                 int tmp=0;
769
770                 if (pkey == NULL)
771                         {
772                         pkey=X509_REQ_get_pubkey(req);
773                         tmp=1;
774                         if (pkey == NULL) goto end;
775                         }
776
777                 i=X509_REQ_verify(req,pkey);
778                 if (tmp) {
779                         EVP_PKEY_free(pkey);
780                         pkey=NULL;
781                 }
782
783                 if (i < 0)
784                         {
785                         goto end;
786                         }
787                 else if (i == 0)
788                         {
789                         BIO_printf(bio_err,"verify failure\n");
790                         }
791                 else /* if (i > 0) */
792                         BIO_printf(bio_err,"verify OK\n");
793                 }
794
795         if (noout && !text && !modulus)
796                 {
797                 ex=0;
798                 goto end;
799                 }
800
801         if (outfile == NULL)
802                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
803         else
804                 {
805                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
806                         i=(int)BIO_append_filename(out,outfile);
807                 else
808                         i=(int)BIO_write_filename(out,outfile);
809                 if (!i)
810                         {
811                         perror(outfile);
812                         goto end;
813                         }
814                 }
815
816         if (text)
817                 {
818                 if (x509)
819                         X509_print(out,x509ss);
820                 else    
821                         X509_REQ_print(out,req);
822                 }
823
824         if (modulus)
825                 {
826                 EVP_PKEY *pubkey;
827
828                 if (x509)
829                         pubkey=X509_get_pubkey(x509ss);
830                 else
831                         pubkey=X509_REQ_get_pubkey(req);
832                 if (pubkey == NULL)
833                         {
834                         fprintf(stdout,"Modulus=unavailable\n");
835                         goto end; 
836                         }
837                 fprintf(stdout,"Modulus=");
838 #ifndef NO_RSA
839                 if (pubkey->type == EVP_PKEY_RSA)
840                         BN_print(out,pubkey->pkey.rsa->n);
841                 else
842 #endif
843                         fprintf(stdout,"Wrong Algorithm type");
844                 fprintf(stdout,"\n");
845                 }
846
847         if (!noout && !x509)
848                 {
849                 if      (outformat == FORMAT_ASN1)
850                         i=i2d_X509_REQ_bio(out,req);
851                 else if (outformat == FORMAT_PEM) {
852                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
853                         else i=PEM_write_bio_X509_REQ(out,req);
854                 } else {
855                         BIO_printf(bio_err,"bad output format specified for outfile\n");
856                         goto end;
857                         }
858                 if (!i)
859                         {
860                         BIO_printf(bio_err,"unable to write X509 request\n");
861                         goto end;
862                         }
863                 }
864         if (!noout && x509 && (x509ss != NULL))
865                 {
866                 if      (outformat == FORMAT_ASN1)
867                         i=i2d_X509_bio(out,x509ss);
868                 else if (outformat == FORMAT_PEM)
869                         i=PEM_write_bio_X509(out,x509ss);
870                 else    {
871                         BIO_printf(bio_err,"bad output format specified for outfile\n");
872                         goto end;
873                         }
874                 if (!i)
875                         {
876                         BIO_printf(bio_err,"unable to write X509 certificate\n");
877                         goto end;
878                         }
879                 }
880         ex=0;
881 end:
882         if (ex)
883                 {
884                 ERR_print_errors(bio_err);
885                 }
886         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
887         BIO_free(in);
888         BIO_free(out);
889         EVP_PKEY_free(pkey);
890         X509_REQ_free(req);
891         X509_free(x509ss);
892         if(passargin && passin) OPENSSL_free(passin);
893         if(passargout && passout) OPENSSL_free(passout);
894         OBJ_cleanup();
895 #ifndef NO_DSA
896         if (dsa_params != NULL) DSA_free(dsa_params);
897 #endif
898         EXIT(ex);
899         }
900
901 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
902         {
903         int ret=0,i;
904         char no_prompt = 0;
905         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
906         char *tmp, *dn_sect,*attr_sect;
907
908         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
909         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
910
911         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
912         if (dn_sect == NULL)
913                 {
914                 BIO_printf(bio_err,"unable to find '%s' in config\n",
915                         DISTINGUISHED_NAME);
916                 goto err;
917                 }
918         dn_sk=CONF_get_section(req_conf,dn_sect);
919         if (dn_sk == NULL)
920                 {
921                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
922                 goto err;
923                 }
924
925         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
926         if (attr_sect == NULL)
927                 attr_sk=NULL;
928         else
929                 {
930                 attr_sk=CONF_get_section(req_conf,attr_sect);
931                 if (attr_sk == NULL)
932                         {
933                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
934                         goto err;
935                         }
936                 }
937
938         /* setup version number */
939         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
940
941         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
942         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
943         if(!i) goto err;
944
945         X509_REQ_set_pubkey(req,pkey);
946
947         ret=1;
948 err:
949         return(ret);
950         }
951
952
953 static int prompt_info(X509_REQ *req,
954                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
955                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
956         {
957         int i;
958         char *p,*q;
959         char buf[100];
960         int nid,min,max;
961         char *type,*def,*value;
962         CONF_VALUE *v;
963         X509_NAME *subj;
964         subj = X509_REQ_get_subject_name(req);
965         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
966         BIO_printf(bio_err,"into your certificate request.\n");
967         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
968         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
969         BIO_printf(bio_err,"For some fields there will be a default value,\n");
970         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
971         BIO_printf(bio_err,"-----\n");
972
973
974         if (sk_CONF_VALUE_num(dn_sk))
975                 {
976                 i= -1;
977 start:          for (;;)
978                         {
979                         i++;
980                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
981
982                         v=sk_CONF_VALUE_value(dn_sk,i);
983                         p=q=NULL;
984                         type=v->name;
985                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
986                                 !check_end(type,"_default") ||
987                                          !check_end(type,"_value")) continue;
988                         /* Skip past any leading X. X: X, etc to allow for
989                          * multiple instances 
990                          */
991                         for(p = v->name; *p ; p++) 
992                                 if ((*p == ':') || (*p == ',') ||
993                                                          (*p == '.')) {
994                                         p++;
995                                         if(*p) type = p;
996                                         break;
997                                 }
998                         /* If OBJ not recognised ignore it */
999                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1000                         sprintf(buf,"%s_default",v->name);
1001                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1002                                 def="";
1003                                 
1004                         sprintf(buf,"%s_value",v->name);
1005                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1006                                 value=NULL;
1007
1008                         sprintf(buf,"%s_min",v->name);
1009                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1010
1011                         sprintf(buf,"%s_max",v->name);
1012                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1013
1014                         if (!add_DN_object(subj,v->value,def,value,nid,
1015                                 min,max))
1016                                 return 0;
1017                         }
1018                 if (X509_NAME_entry_count(subj) == 0)
1019                         {
1020                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1021                         return 0;
1022                         }
1023
1024                 if (attribs)
1025                         {
1026                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1027                                 {
1028                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1029                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1030                                 }
1031
1032                         i= -1;
1033 start2:                 for (;;)
1034                                 {
1035                                 i++;
1036                                 if ((attr_sk == NULL) ||
1037                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1038                                         break;
1039
1040                                 v=sk_CONF_VALUE_value(attr_sk,i);
1041                                 type=v->name;
1042                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1043                                         goto start2;
1044
1045                                 sprintf(buf,"%s_default",type);
1046                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1047                                         == NULL)
1048                                         def="";
1049                                 
1050                                 sprintf(buf,"%s_value",type);
1051                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1052                                         == NULL)
1053                                         value=NULL;
1054
1055                                 sprintf(buf,"%s_min",type);
1056                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1057
1058                                 sprintf(buf,"%s_max",type);
1059                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1060
1061                                 if (!add_attribute_object(req,
1062                                         v->value,def,value,nid,min,max))
1063                                         return 0;
1064                                 }
1065                         }
1066                 }
1067         else
1068                 {
1069                 BIO_printf(bio_err,"No template, please set one up.\n");
1070                 return 0;
1071                 }
1072
1073         return 1;
1074
1075         }
1076
1077 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1078                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1079         {
1080         int i;
1081         char *p,*q;
1082         char *type;
1083         CONF_VALUE *v;
1084         X509_NAME *subj;
1085
1086         subj = X509_REQ_get_subject_name(req);
1087
1088         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1089                 {
1090                 v=sk_CONF_VALUE_value(dn_sk,i);
1091                 p=q=NULL;
1092                 type=v->name;
1093                 /* Skip past any leading X. X: X, etc to allow for
1094                  * multiple instances 
1095                  */
1096                 for(p = v->name; *p ; p++) 
1097                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1098                                 p++;
1099                                 if(*p) type = p;
1100                                 break;
1101                         }
1102                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1103                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1104
1105                 }
1106
1107                 if (!X509_NAME_entry_count(subj))
1108                         {
1109                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1110                         return 0;
1111                         }
1112                 if (attribs)
1113                         {
1114                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1115                                 {
1116                                 v=sk_CONF_VALUE_value(attr_sk,i);
1117                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1118                                         (unsigned char *)v->value, -1)) return 0;
1119                                 }
1120                         }
1121         return 1;
1122         }
1123
1124
1125 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1126              int nid, int min, int max)
1127         {
1128         int i,ret=0;
1129         MS_STATIC char buf[1024];
1130 start:
1131         BIO_printf(bio_err,"%s [%s]:",text,def);
1132         (void)BIO_flush(bio_err);
1133         if (value != NULL)
1134                 {
1135                 strcpy(buf,value);
1136                 strcat(buf,"\n");
1137                 BIO_printf(bio_err,"%s\n",value);
1138                 }
1139         else
1140                 {
1141                 buf[0]='\0';
1142                 fgets(buf,1024,stdin);
1143                 }
1144
1145         if (buf[0] == '\0') return(0);
1146         else if (buf[0] == '\n')
1147                 {
1148                 if ((def == NULL) || (def[0] == '\0'))
1149                         return(1);
1150                 strcpy(buf,def);
1151                 strcat(buf,"\n");
1152                 }
1153         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1154
1155         i=strlen(buf);
1156         if (buf[i-1] != '\n')
1157                 {
1158                 BIO_printf(bio_err,"weird input :-(\n");
1159                 return(0);
1160                 }
1161         buf[--i]='\0';
1162
1163 #ifdef CHARSET_EBCDIC
1164         ebcdic2ascii(buf, buf, i);
1165 #endif
1166         if(!req_check_len(i, min, max)) goto start;
1167         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1168                                 (unsigned char *) buf, -1,-1,0)) goto err;
1169         ret=1;
1170 err:
1171         return(ret);
1172         }
1173
1174 static int add_attribute_object(X509_REQ *req, char *text,
1175                                 char *def, char *value, int nid, int min,
1176                                 int max)
1177         {
1178         int i;
1179         static char buf[1024];
1180
1181 start:
1182         BIO_printf(bio_err,"%s [%s]:",text,def);
1183         (void)BIO_flush(bio_err);
1184         if (value != NULL)
1185                 {
1186                 strcpy(buf,value);
1187                 strcat(buf,"\n");
1188                 BIO_printf(bio_err,"%s\n",value);
1189                 }
1190         else
1191                 {
1192                 buf[0]='\0';
1193                 fgets(buf,1024,stdin);
1194                 }
1195
1196         if (buf[0] == '\0') return(0);
1197         else if (buf[0] == '\n')
1198                 {
1199                 if ((def == NULL) || (def[0] == '\0'))
1200                         return(1);
1201                 strcpy(buf,def);
1202                 strcat(buf,"\n");
1203                 }
1204         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1205
1206         i=strlen(buf);
1207         if (buf[i-1] != '\n')
1208                 {
1209                 BIO_printf(bio_err,"weird input :-(\n");
1210                 return(0);
1211                 }
1212         buf[--i]='\0';
1213         if(!req_check_len(i, min, max)) goto start;
1214
1215         if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1216                                         (unsigned char *)buf, -1)) {
1217                 BIO_printf(bio_err, "Error adding attribute\n");
1218                 ERR_print_errors(bio_err);
1219                 goto err;
1220         }
1221
1222         return(1);
1223 err:
1224         return(0);
1225         }
1226
1227 #ifndef NO_RSA
1228 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1229         {
1230         char c='*';
1231
1232         if (p == 0) c='.';
1233         if (p == 1) c='+';
1234         if (p == 2) c='*';
1235         if (p == 3) c='\n';
1236         BIO_write((BIO *)arg,&c,1);
1237         (void)BIO_flush((BIO *)arg);
1238 #ifdef LINT
1239         p=n;
1240 #endif
1241         }
1242 #endif
1243
1244 static int req_check_len(int len, int min, int max)
1245         {
1246         if (len < min)
1247                 {
1248                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1249                 return(0);
1250                 }
1251         if ((max != 0) && (len > max))
1252                 {
1253                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1254                 return(0);
1255                 }
1256         return(1);
1257         }
1258
1259 /* Check if the end of a string matches 'end' */
1260 static int check_end(char *str, char *end)
1261 {
1262         int elen, slen; 
1263         char *tmp;
1264         elen = strlen(end);
1265         slen = strlen(str);
1266         if(elen > slen) return 1;
1267         tmp = str + slen - elen;
1268         return strcmp(tmp, end);
1269 }