pkcs7.c revision 312826 
1/* apps/pkcs7.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <time.h>
63#include "apps.h"
64#include <openssl/err.h>
65#include <openssl/objects.h>
66#include <openssl/evp.h>
67#include <openssl/x509.h>
68#include <openssl/pkcs7.h>
69#include <openssl/pem.h>
70
71#undef PROG
72#define PROG    pkcs7_main
73
74/*-
75 * -inform arg  - input format - default PEM (DER or PEM)
76 * -outform arg - output format - default PEM
77 * -in arg      - input file - default stdin
78 * -out arg     - output file - default stdout
79 * -print_certs
80 */
81
82int MAIN(int, char **);
83
84int MAIN(int argc, char **argv)
85{
86    PKCS7 *p7 = NULL;
87    int i, badops = 0;
88    BIO *in = NULL, *out = NULL;
89    int informat, outformat;
90    char *infile, *outfile, *prog;
91    int print_certs = 0, text = 0, noout = 0, p7_print = 0;
92    int ret = 1;
93    char *engine = NULL;
94    ENGINE *e = NULL;
95
96    apps_startup();
97
98    if (bio_err == NULL)
99        if ((bio_err = BIO_new(BIO_s_file())) != NULL)
100            BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
101
102    if (!load_config(bio_err, NULL))
103        goto end;
104
105    infile = NULL;
106    outfile = NULL;
107    informat = FORMAT_PEM;
108    outformat = FORMAT_PEM;
109
110    prog = argv[0];
111    argc--;
112    argv++;
113    while (argc >= 1) {
114        if (strcmp(*argv, "-inform") == 0) {
115            if (--argc < 1)
116                goto bad;
117            informat = str2fmt(*(++argv));
118        } else if (strcmp(*argv, "-outform") == 0) {
119            if (--argc < 1)
120                goto bad;
121            outformat = str2fmt(*(++argv));
122        } else if (strcmp(*argv, "-in") == 0) {
123            if (--argc < 1)
124                goto bad;
125            infile = *(++argv);
126        } else if (strcmp(*argv, "-out") == 0) {
127            if (--argc < 1)
128                goto bad;
129            outfile = *(++argv);
130        } else if (strcmp(*argv, "-noout") == 0)
131            noout = 1;
132        else if (strcmp(*argv, "-text") == 0)
133            text = 1;
134        else if (strcmp(*argv, "-print") == 0)
135            p7_print = 1;
136        else if (strcmp(*argv, "-print_certs") == 0)
137            print_certs = 1;
138#ifndef OPENSSL_NO_ENGINE
139        else if (strcmp(*argv, "-engine") == 0) {
140            if (--argc < 1)
141                goto bad;
142            engine = *(++argv);
143        }
144#endif
145        else {
146            BIO_printf(bio_err, "unknown option %s\n", *argv);
147            badops = 1;
148            break;
149        }
150        argc--;
151        argv++;
152    }
153
154    if (badops) {
155 bad:
156        BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
157        BIO_printf(bio_err, "where options are\n");
158        BIO_printf(bio_err, " -inform arg   input format - DER or PEM\n");
159        BIO_printf(bio_err, " -outform arg  output format - DER or PEM\n");
160        BIO_printf(bio_err, " -in arg       input file\n");
161        BIO_printf(bio_err, " -out arg      output file\n");
162        BIO_printf(bio_err,
163                   " -print_certs  print any certs or crl in the input\n");
164        BIO_printf(bio_err,
165                   " -text         print full details of certificates\n");
166        BIO_printf(bio_err, " -noout        don't output encoded data\n");
167#ifndef OPENSSL_NO_ENGINE
168        BIO_printf(bio_err,
169                   " -engine e     use engine e, possibly a hardware device.\n");
170#endif
171        ret = 1;
172        goto end;
173    }
174
175    ERR_load_crypto_strings();
176
177    e = setup_engine(bio_err, engine, 0);
178
179    in = BIO_new(BIO_s_file());
180    out = BIO_new(BIO_s_file());
181    if ((in == NULL) || (out == NULL)) {
182        ERR_print_errors(bio_err);
183        goto end;
184    }
185
186    if (infile == NULL)
187        BIO_set_fp(in, stdin, BIO_NOCLOSE);
188    else {
189        if (BIO_read_filename(in, infile) <= 0) {
190            BIO_printf(bio_err, "unable to load input file\n");
191            ERR_print_errors(bio_err);
192            goto end;
193        }
194    }
195
196    if (informat == FORMAT_ASN1)
197        p7 = d2i_PKCS7_bio(in, NULL);
198    else if (informat == FORMAT_PEM)
199        p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
200    else {
201        BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");
202        goto end;
203    }
204    if (p7 == NULL) {
205        BIO_printf(bio_err, "unable to load PKCS7 object\n");
206        ERR_print_errors(bio_err);
207        goto end;
208    }
209
210    if (outfile == NULL) {
211        BIO_set_fp(out, stdout, BIO_NOCLOSE);
212#ifdef OPENSSL_SYS_VMS
213        {
214            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
215            out = BIO_push(tmpbio, out);
216        }
217#endif
218    } else {
219        if (BIO_write_filename(out, outfile) <= 0) {
220            perror(outfile);
221            goto end;
222        }
223    }
224
225    if (p7_print)
226        PKCS7_print_ctx(out, p7, 0, NULL);
227
228    if (print_certs) {
229        STACK_OF(X509) *certs = NULL;
230        STACK_OF(X509_CRL) *crls = NULL;
231
232        i = OBJ_obj2nid(p7->type);
233        switch (i) {
234        case NID_pkcs7_signed:
235            if (p7->d.sign != NULL) {
236                certs = p7->d.sign->cert;
237                crls = p7->d.sign->crl;
238            }
239            break;
240        case NID_pkcs7_signedAndEnveloped:
241            if (p7->d.signed_and_enveloped != NULL) {
242                certs = p7->d.signed_and_enveloped->cert;
243                crls = p7->d.signed_and_enveloped->crl;
244            }
245            break;
246        default:
247            break;
248        }
249
250        if (certs != NULL) {
251            X509 *x;
252
253            for (i = 0; i < sk_X509_num(certs); i++) {
254                x = sk_X509_value(certs, i);
255                if (text)
256                    X509_print(out, x);
257                else
258                    dump_cert_text(out, x);
259
260                if (!noout)
261                    PEM_write_bio_X509(out, x);
262                BIO_puts(out, "\n");
263            }
264        }
265        if (crls != NULL) {
266            X509_CRL *crl;
267
268            for (i = 0; i < sk_X509_CRL_num(crls); i++) {
269                crl = sk_X509_CRL_value(crls, i);
270
271                X509_CRL_print(out, crl);
272
273                if (!noout)
274                    PEM_write_bio_X509_CRL(out, crl);
275                BIO_puts(out, "\n");
276            }
277        }
278
279        ret = 0;
280        goto end;
281    }
282
283    if (!noout) {
284        if (outformat == FORMAT_ASN1)
285            i = i2d_PKCS7_bio(out, p7);
286        else if (outformat == FORMAT_PEM)
287            i = PEM_write_bio_PKCS7(out, p7);
288        else {
289            BIO_printf(bio_err, "bad output format specified for outfile\n");
290            goto end;
291        }
292
293        if (!i) {
294            BIO_printf(bio_err, "unable to write pkcs7 object\n");
295            ERR_print_errors(bio_err);
296            goto end;
297        }
298    }
299    ret = 0;
300 end:
301    if (p7 != NULL)
302        PKCS7_free(p7);
303    release_engine(e);
304    if (in != NULL)
305        BIO_free(in);
306    if (out != NULL)
307        BIO_free_all(out);
308    apps_shutdown();
309    OPENSSL_EXIT(ret);
310}
311