apps/pkcs7.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <time.h>
  14 #include "apps.h"
  15 #include <openssl/err.h>
  16 #include <openssl/objects.h>
  17 #include <openssl/evp.h>
  18 #include <openssl/x509.h>
  19 #include <openssl/pkcs7.h>
  20 #include <openssl/pem.h>
  21
  22 typedef enum OPTION_choice {
  23     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  24     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_NOOUT,
  25     OPT_TEXT, OPT_PRINT, OPT_PRINT_CERTS, OPT_ENGINE
  26 } OPTION_CHOICE;
  27
  28 const OPTIONS pkcs7_options[] = {
  29     {"help", OPT_HELP, '-', "Display this summary"},
  30     {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
  31     {"in", OPT_IN, '<', "Input file"},
  32     {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
  33     {"out", OPT_OUT, '>', "Output file"},
  34     {"noout", OPT_NOOUT, '-', "Don't output encoded data"},
  35     {"text", OPT_TEXT, '-', "Print full details of certificates"},
  36     {"print", OPT_PRINT, '-', "Print out all fields of the PKCS7 structure"},
  37     {"print_certs", OPT_PRINT_CERTS, '-',
  38      "Print_certs  print any certs or crl in the input"},
  39 #ifndef OPENSSL_NO_ENGINE
  40     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
  41 #endif
  42     {NULL}
  43 };
  44
  45 int pkcs7_main(int argc, char **argv)
  46 {
  47     PKCS7 *p7 = NULL;
  48     BIO *in = NULL, *out = NULL;
  49     int informat = FORMAT_PEM, outformat = FORMAT_PEM;
  50     char *infile = NULL, *outfile = NULL, *prog;
  51     int i, print_certs = 0, text = 0, noout = 0, p7_print = 0, ret = 1;
  52     OPTION_CHOICE o;
  53
  54     prog = opt_init(argc, argv, pkcs7_options);
  55     while ((o = opt_next()) != OPT_EOF) {
  56         switch (o) {
  57         case OPT_EOF:
  58         case OPT_ERR:
  59  opthelp:
  60             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
  61             goto end;
  62         case OPT_HELP:
  63             opt_help(pkcs7_options);
  64             ret = 0;
  65             goto end;
  66         case OPT_INFORM:
  67             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
  68                 goto opthelp;
  69             break;
  70         case OPT_OUTFORM:
  71             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
  72                 goto opthelp;
  73             break;
  74         case OPT_IN:
  75             infile = opt_arg();
  76             break;
  77         case OPT_OUT:
  78             outfile = opt_arg();
  79             break;
  80         case OPT_NOOUT:
  81             noout = 1;
  82             break;
  83         case OPT_TEXT:
  84             text = 1;
  85             break;
  86         case OPT_PRINT:
  87             p7_print = 1;
  88             break;
  89         case OPT_PRINT_CERTS:
  90             print_certs = 1;
  91             break;
  92         case OPT_ENGINE:
  93             (void)setup_engine(opt_arg(), 0);
  94             break;
  95         }
  96     }
  97     argc = opt_num_rest();
  98     if (argc != 0)
  99         goto opthelp;
 100
 101     in = bio_open_default(infile, 'r', informat);
 102     if (in == NULL)
 103         goto end;
 104
 105     if (informat == FORMAT_ASN1)
 106         p7 = d2i_PKCS7_bio(in, NULL);
 107     else
 108         p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
 109     if (p7 == NULL) {
 110         BIO_printf(bio_err, "unable to load PKCS7 object\n");
 111         ERR_print_errors(bio_err);
 112         goto end;
 113     }
 114
 115     out = bio_open_default(outfile, 'w', outformat);
 116     if (out == NULL)
 117         goto end;
 118
 119     if (p7_print)
 120         PKCS7_print_ctx(out, p7, 0, NULL);
 121
 122     if (print_certs) {
 123         STACK_OF(X509) *certs = NULL;
 124         STACK_OF(X509_CRL) *crls = NULL;
 125
 126         i = OBJ_obj2nid(p7->type);
 127         switch (i) {
 128         case NID_pkcs7_signed:
 129             if (p7->d.sign != NULL) {
 130                 certs = p7->d.sign->cert;
 131                 crls = p7->d.sign->crl;
 132             }
 133             break;
 134         case NID_pkcs7_signedAndEnveloped:
 135             if (p7->d.signed_and_enveloped != NULL) {
 136                 certs = p7->d.signed_and_enveloped->cert;
 137                 crls = p7->d.signed_and_enveloped->crl;
 138             }
 139             break;
 140         default:
 141             break;
 142         }
 143
 144         if (certs != NULL) {
 145             X509 *x;
 146
 147             for (i = 0; i < sk_X509_num(certs); i++) {
 148                 x = sk_X509_value(certs, i);
 149                 if (text)
 150                     X509_print(out, x);
 151                 else
 152                     dump_cert_text(out, x);
 153
 154                 if (!noout)
 155                     PEM_write_bio_X509(out, x);
 156                 BIO_puts(out, "\n");
 157             }
 158         }
 159         if (crls != NULL) {
 160             X509_CRL *crl;
 161
 162             for (i = 0; i < sk_X509_CRL_num(crls); i++) {
 163                 crl = sk_X509_CRL_value(crls, i);
 164
 165                 X509_CRL_print(out, crl);
 166
 167                 if (!noout)
 168                     PEM_write_bio_X509_CRL(out, crl);
 169                 BIO_puts(out, "\n");
 170             }
 171         }
 172
 173         ret = 0;
 174         goto end;
 175     }
 176
 177     if (!noout) {
 178         if (outformat == FORMAT_ASN1)
 179             i = i2d_PKCS7_bio(out, p7);
 180         else
 181             i = PEM_write_bio_PKCS7(out, p7);
 182
 183         if (!i) {
 184             BIO_printf(bio_err, "unable to write pkcs7 object\n");
 185             ERR_print_errors(bio_err);
 186             goto end;
 187         }
 188     }
 189     ret = 0;
 190  end:
 191     PKCS7_free(p7);
 192     BIO_free(in);
 193     BIO_free_all(out);
 194     return (ret);
 195 }