bin/openssl/pkeyparam.c

   1 /* $OpenBSD: pkeyparam.c,v 1.11 2018/02/07 05:47:55 jsing Exp $ */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2006
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61
  62 #include "apps.h"
  63
  64 #include <openssl/err.h>
  65 #include <openssl/evp.h>
  66 #include <openssl/pem.h>
  67
  68 struct {
  69         char *infile;
  70         int noout;
  71         char *outfile;
  72         int text;
  73 } pkeyparam_config;
  74
  75 struct option pkeyparam_options[] = {
  76         {
  77                 .name = "in",
  78                 .argname = "file",
  79                 .desc = "Input file (default stdin)",
  80                 .type = OPTION_ARG,
  81                 .opt.arg = &pkeyparam_config.infile,
  82         },
  83         {
  84                 .name = "noout",
  85                 .desc = "Do not print encoded version of the parameters",
  86                 .type = OPTION_FLAG,
  87                 .opt.flag = &pkeyparam_config.noout,
  88         },
  89         {
  90                 .name = "out",
  91                 .argname = "file",
  92                 .desc = "Output file (default stdout)",
  93                 .type = OPTION_ARG,
  94                 .opt.arg = &pkeyparam_config.outfile,
  95         },
  96         {
  97                 .name = "text",
  98                 .desc = "Print out the parameters in plain text",
  99                 .type = OPTION_FLAG,
 100                 .opt.flag = &pkeyparam_config.text,
 101         },
 102         { NULL },
 103 };
 104
 105 static void
 106 pkeyparam_usage()
 107 {
 108         fprintf(stderr,
 109             "usage: pkeyparam [-in file] [-noout] [-out file] "
 110             "[-text]\n");
 111         options_usage(pkeyparam_options);
 112 }
 113
 114 int
 115 pkeyparam_main(int argc, char **argv)
 116 {
 117         BIO *in = NULL, *out = NULL;
 118         EVP_PKEY *pkey = NULL;
 119         int ret = 1;
 120
 121         if (single_execution) {
 122                 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
 123                         perror("pledge");
 124                         exit(1);
 125                 }
 126         }
 127
 128         memset(&pkeyparam_config, 0, sizeof(pkeyparam_config));
 129
 130         if (options_parse(argc, argv, pkeyparam_options, NULL, NULL) != 0) {
 131                 pkeyparam_usage();
 132                 return (1);
 133         }
 134
 135         if (pkeyparam_config.infile) {
 136                 if (!(in = BIO_new_file(pkeyparam_config.infile, "r"))) {
 137                         BIO_printf(bio_err, "Can't open input file %s\n",
 138                             pkeyparam_config.infile);
 139                         goto end;
 140                 }
 141         } else
 142                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 143
 144         if (pkeyparam_config.outfile) {
 145                 if (!(out = BIO_new_file(pkeyparam_config.outfile, "w"))) {
 146                         BIO_printf(bio_err, "Can't open output file %s\n",
 147                             pkeyparam_config.outfile);
 148                         goto end;
 149                 }
 150         } else {
 151                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 152         }
 153
 154         pkey = PEM_read_bio_Parameters(in, NULL);
 155         if (!pkey) {
 156                 BIO_printf(bio_err, "Error reading parameters\n");
 157                 ERR_print_errors(bio_err);
 158                 goto end;
 159         }
 160         if (!pkeyparam_config.noout)
 161                 PEM_write_bio_Parameters(out, pkey);
 162
 163         if (pkeyparam_config.text)
 164                 EVP_PKEY_print_params(out, pkey, 0, NULL);
 165
 166         ret = 0;
 167
 168  end:
 169         EVP_PKEY_free(pkey);
 170         BIO_free_all(out);
 171         BIO_free(in);
 172
 173         return ret;
 174 }