pkcs7.c

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/* apps/pkcs7.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "apps.h"
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs7.h>
#include <openssl/pem.h>

#undef PROG
#define PROG    pkcs7_main

/* -inform arg  - input format - default PEM (DER or PEM)
 * -outform arg - output format - default PEM
 * -in arg      - input file - default stdin
 * -out arg     - output file - default stdout
 * -print_certs
 */

int MAIN(int, char **);

int MAIN(int argc, char **argv)
        {
#ifndef OPENSSL_NO_ENGINE
        ENGINE *e = NULL;
#endif
        PKCS7 *p7=NULL;
        int i,badops=0;
        BIO *in=NULL,*out=NULL;
        int informat,outformat;
        char *infile,*outfile,*prog;
        int print_certs=0,text=0,noout=0;
        int ret=1;
#ifndef OPENSSL_NO_ENGINE
        char *engine=NULL;
#endif

        apps_startup();

        if (bio_err == NULL)
                if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                        BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

        if (!load_config(bio_err, NULL))
                goto end;

        infile=NULL;
        outfile=NULL;
        informat=FORMAT_PEM;
        outformat=FORMAT_PEM;

        prog=argv[0];
        argc--;
        argv++;
        while (argc >= 1)
                {
                if      (strcmp(*argv,"-inform") == 0)
                        {
                        if (--argc < 1) goto bad;
                        informat=str2fmt(*(++argv));
                        }
                else if (strcmp(*argv,"-outform") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outformat=str2fmt(*(++argv));
                        }
                else if (strcmp(*argv,"-in") == 0)
                        {
                        if (--argc < 1) goto bad;
                        infile= *(++argv);
                        }
                else if (strcmp(*argv,"-out") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outfile= *(++argv);
                        }
                else if (strcmp(*argv,"-noout") == 0)
                        noout=1;
                else if (strcmp(*argv,"-text") == 0)
                        text=1;
                else if (strcmp(*argv,"-print_certs") == 0)
                        print_certs=1;
#ifndef OPENSSL_NO_ENGINE
                else if (strcmp(*argv,"-engine") == 0)
                        {
                        if (--argc < 1) goto bad;
                        engine= *(++argv);
                        }
#endif
                else
                        {
                        BIO_printf(bio_err,"unknown option %s\n",*argv);
                        badops=1;
                        break;
                        }
                argc--;
                argv++;
                }

        if (badops)
                {
bad:
                BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
                BIO_printf(bio_err,"where options are\n");
                BIO_printf(bio_err," -inform arg   input format - DER or PEM\n");
                BIO_printf(bio_err," -outform arg  output format - DER or PEM\n");
                BIO_printf(bio_err," -in arg       input file\n");
                BIO_printf(bio_err," -out arg      output file\n");
                BIO_printf(bio_err," -print_certs  print any certs or crl in the input\n");
                BIO_printf(bio_err," -text         print full details of certificates\n");
                BIO_printf(bio_err," -noout        don't output encoded data\n");
#ifndef OPENSSL_NO_ENGINE
                BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
#endif
                ret = 1;
                goto end;
                }

        ERR_load_crypto_strings();

#ifndef OPENSSL_NO_ENGINE
        e = setup_engine(bio_err, engine, 0);
#endif

        in=BIO_new(BIO_s_file());
        out=BIO_new(BIO_s_file());
        if ((in == NULL) || (out == NULL))
                {
                ERR_print_errors(bio_err);
                goto end;
                }

        if (infile == NULL)
                BIO_set_fp(in,stdin,BIO_NOCLOSE);
        else
                {
                if (BIO_read_filename(in,infile) <= 0)
                if (in == NULL)
                        {
                        perror(infile);
                        goto end;
                        }
                }

        if      (informat == FORMAT_ASN1)
                p7=d2i_PKCS7_bio(in,NULL);
        else if (informat == FORMAT_PEM)
                p7=PEM_read_bio_PKCS7(in,NULL,NULL,NULL);
        else
                {
                BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
                goto end;
                }
        if (p7 == NULL)
                {
                BIO_printf(bio_err,"unable to load PKCS7 object\n");
                ERR_print_errors(bio_err);
                goto end;
                }

        if (outfile == NULL)
                {
                BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
                {
                BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                out = BIO_push(tmpbio, out);
                }
#endif
                }
        else
                {
                if (BIO_write_filename(out,outfile) <= 0)
                        {
                        perror(outfile);
                        goto end;
                        }
                }

        if (print_certs)
                {
                STACK_OF(X509) *certs=NULL;
                STACK_OF(X509_CRL) *crls=NULL;

                i=OBJ_obj2nid(p7->type);
                switch (i)
                        {
                case NID_pkcs7_signed:
                        certs=p7->d.sign->cert;
                        crls=p7->d.sign->crl;
                        break;
                case NID_pkcs7_signedAndEnveloped:
                        certs=p7->d.signed_and_enveloped->cert;
                        crls=p7->d.signed_and_enveloped->crl;
                        break;
                default:
                        break;
                        }

                if (certs != NULL)
                        {
                        X509 *x;

                        for (i=0; i<sk_X509_num(certs); i++)
                                {
                                x=sk_X509_value(certs,i);
                                if(text) X509_print(out, x);
                                else dump_cert_text(out, x);

                                if(!noout) PEM_write_bio_X509(out,x);
                                BIO_puts(out,"\n");
                                }
                        }
                if (crls != NULL)
                        {
                        X509_CRL *crl;

                        for (i=0; i<sk_X509_CRL_num(crls); i++)
                                {
                                crl=sk_X509_CRL_value(crls,i);

                                X509_CRL_print(out, crl);

                                if(!noout)PEM_write_bio_X509_CRL(out,crl);
                                BIO_puts(out,"\n");
                                }
                        }

                ret=0;
                goto end;
                }

        if(!noout) {
                if      (outformat == FORMAT_ASN1)
                        i=i2d_PKCS7_bio(out,p7);
                else if (outformat == FORMAT_PEM)
                        i=PEM_write_bio_PKCS7(out,p7);
                else    {
                        BIO_printf(bio_err,"bad output format specified for outfile\n");
                        goto end;
                        }

                if (!i)
                        {
                        BIO_printf(bio_err,"unable to write pkcs7 object\n");
                        ERR_print_errors(bio_err);
                        goto end;
                        }
        }
        ret=0;
end:
        if (p7 != NULL) PKCS7_free(p7);
        if (in != NULL) BIO_free(in);
        if (out != NULL) BIO_free_all(out);
        apps_shutdown();
        OPENSSL_EXIT(ret);
        }

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