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      1 /* apps/pkcs7.c */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 /* -inform arg	- input format - default PEM (DER or PEM)
     75  * -outform arg - output format - default PEM
     76  * -in arg	- input file - default stdin
     77  * -out arg	- output file - default stdout
     78  * -print_certs
     79  */
     80 
     81 int MAIN(int, char **);
     82 
     83 int MAIN(int argc, char **argv)
     84 	{
     85 	PKCS7 *p7=NULL;
     86 	int i,badops=0;
     87 	BIO *in=NULL,*out=NULL;
     88 	int informat,outformat;
     89 	char *infile,*outfile,*prog;
     90 	int print_certs=0,text=0,noout=0,p7_print=0;
     91 	int ret=1;
     92 #ifndef OPENSSL_NO_ENGINE
     93 	char *engine=NULL;
     94 #endif
     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 		{
    115 		if 	(strcmp(*argv,"-inform") == 0)
    116 			{
    117 			if (--argc < 1) goto bad;
    118 			informat=str2fmt(*(++argv));
    119 			}
    120 		else if (strcmp(*argv,"-outform") == 0)
    121 			{
    122 			if (--argc < 1) goto bad;
    123 			outformat=str2fmt(*(++argv));
    124 			}
    125 		else if (strcmp(*argv,"-in") == 0)
    126 			{
    127 			if (--argc < 1) goto bad;
    128 			infile= *(++argv);
    129 			}
    130 		else if (strcmp(*argv,"-out") == 0)
    131 			{
    132 			if (--argc < 1) goto bad;
    133 			outfile= *(++argv);
    134 			}
    135 		else if (strcmp(*argv,"-noout") == 0)
    136 			noout=1;
    137 		else if (strcmp(*argv,"-text") == 0)
    138 			text=1;
    139 		else if (strcmp(*argv,"-print") == 0)
    140 			p7_print=1;
    141 		else if (strcmp(*argv,"-print_certs") == 0)
    142 			print_certs=1;
    143 #ifndef OPENSSL_NO_ENGINE
    144 		else if (strcmp(*argv,"-engine") == 0)
    145 			{
    146 			if (--argc < 1) goto bad;
    147 			engine= *(++argv);
    148 			}
    149 #endif
    150 		else
    151 			{
    152 			BIO_printf(bio_err,"unknown option %s\n",*argv);
    153 			badops=1;
    154 			break;
    155 			}
    156 		argc--;
    157 		argv++;
    158 		}
    159 
    160 	if (badops)
    161 		{
    162 bad:
    163 		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
    164 		BIO_printf(bio_err,"where options are\n");
    165 		BIO_printf(bio_err," -inform arg   input format - DER or PEM\n");
    166 		BIO_printf(bio_err," -outform arg  output format - DER or PEM\n");
    167 		BIO_printf(bio_err," -in arg       input file\n");
    168 		BIO_printf(bio_err," -out arg      output file\n");
    169 		BIO_printf(bio_err," -print_certs  print any certs or crl in the input\n");
    170 		BIO_printf(bio_err," -text         print full details of certificates\n");
    171 		BIO_printf(bio_err," -noout        don't output encoded data\n");
    172 #ifndef OPENSSL_NO_ENGINE
    173 		BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
    174 #endif
    175 		ret = 1;
    176 		goto end;
    177 		}
    178 
    179 	ERR_load_crypto_strings();
    180 
    181 #ifndef OPENSSL_NO_ENGINE
    182         setup_engine(bio_err, engine, 0);
    183 #endif
    184 
    185 	in=BIO_new(BIO_s_file());
    186 	out=BIO_new(BIO_s_file());
    187 	if ((in == NULL) || (out == NULL))
    188 		{
    189 		ERR_print_errors(bio_err);
    190                 goto end;
    191                 }
    192 
    193 	if (infile == NULL)
    194 		BIO_set_fp(in,stdin,BIO_NOCLOSE);
    195 	else
    196 		{
    197 		if (BIO_read_filename(in,infile) <= 0)
    198 		if (in == NULL)
    199 			{
    200 			perror(infile);
    201 			goto end;
    202 			}
    203 		}
    204 
    205 	if	(informat == FORMAT_ASN1)
    206 		p7=d2i_PKCS7_bio(in,NULL);
    207 	else if (informat == FORMAT_PEM)
    208 		p7=PEM_read_bio_PKCS7(in,NULL,NULL,NULL);
    209 	else
    210 		{
    211 		BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
    212 		goto end;
    213 		}
    214 	if (p7 == NULL)
    215 		{
    216 		BIO_printf(bio_err,"unable to load PKCS7 object\n");
    217 		ERR_print_errors(bio_err);
    218 		goto end;
    219 		}
    220 
    221 	if (outfile == NULL)
    222 		{
    223 		BIO_set_fp(out,stdout,BIO_NOCLOSE);
    224 #ifdef OPENSSL_SYS_VMS
    225 		{
    226 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
    227 		out = BIO_push(tmpbio, out);
    228 		}
    229 #endif
    230 		}
    231 	else
    232 		{
    233 		if (BIO_write_filename(out,outfile) <= 0)
    234 			{
    235 			perror(outfile);
    236 			goto end;
    237 			}
    238 		}
    239 
    240 	if (p7_print)
    241 		PKCS7_print_ctx(out, p7, 0, NULL);
    242 
    243 	if (print_certs)
    244 		{
    245 		STACK_OF(X509) *certs=NULL;
    246 		STACK_OF(X509_CRL) *crls=NULL;
    247 
    248 		i=OBJ_obj2nid(p7->type);
    249 		switch (i)
    250 			{
    251 		case NID_pkcs7_signed:
    252 			certs=p7->d.sign->cert;
    253 			crls=p7->d.sign->crl;
    254 			break;
    255 		case NID_pkcs7_signedAndEnveloped:
    256 			certs=p7->d.signed_and_enveloped->cert;
    257 			crls=p7->d.signed_and_enveloped->crl;
    258 			break;
    259 		default:
    260 			break;
    261 			}
    262 
    263 		if (certs != NULL)
    264 			{
    265 			X509 *x;
    266 
    267 			for (i=0; i<sk_X509_num(certs); i++)
    268 				{
    269 				x=sk_X509_value(certs,i);
    270 				if(text) X509_print(out, x);
    271 				else dump_cert_text(out, x);
    272 
    273 				if(!noout) PEM_write_bio_X509(out,x);
    274 				BIO_puts(out,"\n");
    275 				}
    276 			}
    277 		if (crls != NULL)
    278 			{
    279 			X509_CRL *crl;
    280 
    281 			for (i=0; i<sk_X509_CRL_num(crls); i++)
    282 				{
    283 				crl=sk_X509_CRL_value(crls,i);
    284 
    285 				X509_CRL_print(out, crl);
    286 
    287 				if(!noout)PEM_write_bio_X509_CRL(out,crl);
    288 				BIO_puts(out,"\n");
    289 				}
    290 			}
    291 
    292 		ret=0;
    293 		goto end;
    294 		}
    295 
    296 	if(!noout) {
    297 		if 	(outformat == FORMAT_ASN1)
    298 			i=i2d_PKCS7_bio(out,p7);
    299 		else if (outformat == FORMAT_PEM)
    300 			i=PEM_write_bio_PKCS7(out,p7);
    301 		else	{
    302 			BIO_printf(bio_err,"bad output format specified for outfile\n");
    303 			goto end;
    304 			}
    305 
    306 		if (!i)
    307 			{
    308 			BIO_printf(bio_err,"unable to write pkcs7 object\n");
    309 			ERR_print_errors(bio_err);
    310 			goto end;
    311 			}
    312 	}
    313 	ret=0;
    314 end:
    315 	if (p7 != NULL) PKCS7_free(p7);
    316 	if (in != NULL) BIO_free(in);
    317 	if (out != NULL) BIO_free_all(out);
    318 	apps_shutdown();
    319 	OPENSSL_EXIT(ret);
    320 	}
    321