On VMS, stdout may very well lead to a file that is written to in a
[openssl.git] / apps / spkac.c
1 /* apps/spkac.c */
2
3 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
4  * project 1999. Based on an original idea by Massimiliano Pala
5  * (madwolf@openca.org).
6  */
7 /* ====================================================================
8  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer. 
16  *
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in
19  *    the documentation and/or other materials provided with the
20  *    distribution.
21  *
22  * 3. All advertising materials mentioning features or use of this
23  *    software must display the following acknowledgment:
24  *    "This product includes software developed by the OpenSSL Project
25  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26  *
27  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28  *    endorse or promote products derived from this software without
29  *    prior written permission. For written permission, please contact
30  *    licensing@OpenSSL.org.
31  *
32  * 5. Products derived from this software may not be called "OpenSSL"
33  *    nor may "OpenSSL" appear in their names without prior written
34  *    permission of the OpenSSL Project.
35  *
36  * 6. Redistributions of any form whatsoever must retain the following
37  *    acknowledgment:
38  *    "This product includes software developed by the OpenSSL Project
39  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
45  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52  * OF THE POSSIBILITY OF SUCH DAMAGE.
53  * ====================================================================
54  *
55  * This product includes cryptographic software written by Eric Young
56  * (eay@cryptsoft.com).  This product includes software written by Tim
57  * Hudson (tjh@cryptsoft.com).
58  *
59  */
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <time.h>
64 #include "apps.h"
65 #include <openssl/bio.h>
66 #include <openssl/conf.h>
67 #include <openssl/err.h>
68 #include <openssl/evp.h>
69 #include <openssl/lhash.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
72
73 #undef PROG
74 #define PROG    spkac_main
75
76 /* -in arg      - input file - default stdin
77  * -out arg     - output file - default stdout
78  */
79
80 int MAIN(int, char **);
81
82 int MAIN(int argc, char **argv)
83         {
84         int i,badops=0, ret = 1;
85         BIO *in = NULL,*out = NULL, *key = NULL;
86         int verify=0,noout=0,pubkey=0;
87         char *infile = NULL,*outfile = NULL,*prog;
88         char *passargin = NULL, *passin = NULL;
89         char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
90         char *challenge = NULL, *keyfile = NULL;
91         LHASH *conf = NULL;
92         NETSCAPE_SPKI *spki = NULL;
93         EVP_PKEY *pkey = NULL;
94
95         apps_startup();
96
97         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
98
99         prog=argv[0];
100         argc--;
101         argv++;
102         while (argc >= 1)
103                 {
104                 if (strcmp(*argv,"-in") == 0)
105                         {
106                         if (--argc < 1) goto bad;
107                         infile= *(++argv);
108                         }
109                 else if (strcmp(*argv,"-out") == 0)
110                         {
111                         if (--argc < 1) goto bad;
112                         outfile= *(++argv);
113                         }
114                 else if (strcmp(*argv,"-passin") == 0)
115                         {
116                         if (--argc < 1) goto bad;
117                         passargin= *(++argv);
118                         }
119                 else if (strcmp(*argv,"-key") == 0)
120                         {
121                         if (--argc < 1) goto bad;
122                         keyfile= *(++argv);
123                         }
124                 else if (strcmp(*argv,"-challenge") == 0)
125                         {
126                         if (--argc < 1) goto bad;
127                         challenge= *(++argv);
128                         }
129                 else if (strcmp(*argv,"-spkac") == 0)
130                         {
131                         if (--argc < 1) goto bad;
132                         spkac= *(++argv);
133                         }
134                 else if (strcmp(*argv,"-spksect") == 0)
135                         {
136                         if (--argc < 1) goto bad;
137                         spksect= *(++argv);
138                         }
139                 else if (strcmp(*argv,"-noout") == 0)
140                         noout=1;
141                 else if (strcmp(*argv,"-pubkey") == 0)
142                         pubkey=1;
143                 else if (strcmp(*argv,"-verify") == 0)
144                         verify=1;
145                 else badops = 1;
146                 argc--;
147                 argv++;
148                 }
149
150         if (badops)
151                 {
152 bad:
153                 BIO_printf(bio_err,"%s [options]\n",prog);
154                 BIO_printf(bio_err,"where options are\n");
155                 BIO_printf(bio_err," -in arg        input file\n");
156                 BIO_printf(bio_err," -out arg       output file\n");
157                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
158                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
159                 BIO_printf(bio_err," -challenge arg challenge string\n");
160                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
161                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
162                 BIO_printf(bio_err," -pubkey        output public key\n");
163                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
164                 goto end;
165                 }
166
167         ERR_load_crypto_strings();
168         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
169                 BIO_printf(bio_err, "Error getting password\n");
170                 goto end;
171         }
172
173         if(keyfile) {
174                 if(strcmp(keyfile, "-")) key = BIO_new_file(keyfile, "r");
175                 else key = BIO_new_fp(stdin, BIO_NOCLOSE);
176                 if(!key) {
177                         BIO_printf(bio_err, "Error opening key file\n");
178                         ERR_print_errors(bio_err);
179                         goto end;
180                 }
181                 pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, passin);
182                 if(!pkey) {
183                         BIO_printf(bio_err, "Error reading private key\n");
184                         ERR_print_errors(bio_err);
185                         goto end;
186                 }
187                 spki = NETSCAPE_SPKI_new();
188                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
189                                                  challenge, strlen(challenge));
190                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
191                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
192                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
193
194                 if (outfile) out = BIO_new_file(outfile, "w");
195                 else {
196                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
197 #ifdef VMS
198                         {
199                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
200                             out = BIO_push(tmpbio, out);
201                         }
202 #endif
203                 }
204
205                 if(!out) {
206                         BIO_printf(bio_err, "Error opening output file\n");
207                         ERR_print_errors(bio_err);
208                         goto end;
209                 }
210                 BIO_printf(out, "SPKAC=%s\n", spkstr);
211                 OPENSSL_free(spkstr);
212                 ret = 0;
213                 goto end;
214         }
215
216         
217
218         if (infile) in = BIO_new_file(infile, "r");
219         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
220
221         if(!in) {
222                 BIO_printf(bio_err, "Error opening input file\n");
223                 ERR_print_errors(bio_err);
224                 goto end;
225         }
226
227         conf = CONF_load_bio(NULL, in, NULL);
228
229         if(!conf) {
230                 BIO_printf(bio_err, "Error parsing config file\n");
231                 ERR_print_errors(bio_err);
232                 goto end;
233         }
234
235         spkstr = CONF_get_string(conf, spksect, spkac);
236                 
237         if(!spkstr) {
238                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
239                 ERR_print_errors(bio_err);
240                 goto end;
241         }
242
243         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
244         
245         if(!spki) {
246                 BIO_printf(bio_err, "Error loading SPKAC\n");
247                 ERR_print_errors(bio_err);
248                 goto end;
249         }
250
251         if (outfile) out = BIO_new_file(outfile, "w");
252         else {
253                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
254 #ifdef VMS
255                 {
256                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
257                     out = BIO_push(tmpbio, out);
258                 }
259 #endif
260         }
261
262         if(!out) {
263                 BIO_printf(bio_err, "Error opening output file\n");
264                 ERR_print_errors(bio_err);
265                 goto end;
266         }
267
268         if(!noout) NETSCAPE_SPKI_print(out, spki);
269         pkey = NETSCAPE_SPKI_get_pubkey(spki);
270         if(verify) {
271                 i = NETSCAPE_SPKI_verify(spki, pkey);
272                 if(i) BIO_printf(bio_err, "Signature OK\n");
273                 else {
274                         BIO_printf(bio_err, "Signature Failure\n");
275                         ERR_print_errors(bio_err);
276                         goto end;
277                 }
278         }
279         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
280
281         ret = 0;
282
283 end:
284         CONF_free(conf);
285         NETSCAPE_SPKI_free(spki);
286         BIO_free(in);
287         BIO_free_all(out);
288         BIO_free(key);
289         EVP_PKEY_free(pkey);
290         if(passin) OPENSSL_free(passin);
291         EXIT(ret);
292         }