crypto/external/bsd/openssl/dist/apps/pkeyparam.c

   1 /* apps/pkeyparam.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 2006
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59 #include <stdio.h>
  60 #include <string.h>
  61 #include "apps.h"
  62 #include <openssl/pem.h>
  63 #include <openssl/err.h>
  64 #include <openssl/evp.h>
  65
  66 #define PROG pkeyparam_main
  67
  68 int MAIN(int, char **);
  69
  70 int MAIN(int argc, char **argv)
  71 {
  72     char **args, *infile = NULL, *outfile = NULL;
  73     BIO *in = NULL, *out = NULL;
  74     int text = 0, noout = 0;
  75     EVP_PKEY *pkey = NULL;
  76     int badarg = 0;
  77 #ifndef OPENSSL_NO_ENGINE
  78     char *engine = NULL;
  79 #endif
  80     int ret = 1;
  81
  82     if (bio_err == NULL)
  83         bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
  84
  85     if (!load_config(bio_err, NULL))
  86         goto end;
  87
  88     ERR_load_crypto_strings();
  89     OpenSSL_add_all_algorithms();
  90     args = argv + 1;
  91     while (!badarg && *args && *args[0] == '-') {
  92         if (!strcmp(*args, "-in")) {
  93             if (args[1]) {
  94                 args++;
  95                 infile = *args;
  96             } else
  97                 badarg = 1;
  98         } else if (!strcmp(*args, "-out")) {
  99             if (args[1]) {
 100                 args++;
 101                 outfile = *args;
 102             } else
 103                 badarg = 1;
 104         }
 105 #ifndef OPENSSL_NO_ENGINE
 106         else if (strcmp(*args, "-engine") == 0) {
 107             if (!args[1])
 108                 goto bad;
 109             engine = *(++args);
 110         }
 111 #endif
 112
 113         else if (strcmp(*args, "-text") == 0)
 114             text = 1;
 115         else if (strcmp(*args, "-noout") == 0)
 116             noout = 1;
 117         args++;
 118     }
 119
 120     if (badarg) {
 121 #ifndef OPENSSL_NO_ENGINE
 122  bad:
 123 #endif
 124         BIO_printf(bio_err, "Usage pkeyparam [options]\n");
 125         BIO_printf(bio_err, "where options are\n");
 126         BIO_printf(bio_err, "-in file        input file\n");
 127         BIO_printf(bio_err, "-out file       output file\n");
 128         BIO_printf(bio_err, "-text           print parameters as text\n");
 129         BIO_printf(bio_err,
 130                    "-noout          don't output encoded parameters\n");
 131 #ifndef OPENSSL_NO_ENGINE
 132         BIO_printf(bio_err,
 133                    "-engine e       use engine e, possibly a hardware device.\n");
 134 #endif
 135         return 1;
 136     }
 137 #ifndef OPENSSL_NO_ENGINE
 138     setup_engine(bio_err, engine, 0);
 139 #endif
 140
 141     if (infile) {
 142         if (!(in = BIO_new_file(infile, "r"))) {
 143             BIO_printf(bio_err, "Can't open input file %s\n", infile);
 144             goto end;
 145         }
 146     } else
 147         in = BIO_new_fp(stdin, BIO_NOCLOSE);
 148
 149     if (outfile) {
 150         if (!(out = BIO_new_file(outfile, "w"))) {
 151             BIO_printf(bio_err, "Can't open output file %s\n", outfile);
 152             goto end;
 153         }
 154     } else {
 155         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 156 #ifdef OPENSSL_SYS_VMS
 157         {
 158             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 159             out = BIO_push(tmpbio, out);
 160         }
 161 #endif
 162     }
 163
 164     pkey = PEM_read_bio_Parameters(in, NULL);
 165     if (!pkey) {
 166         BIO_printf(bio_err, "Error reading parameters\n");
 167         ERR_print_errors(bio_err);
 168         goto end;
 169     }
 170
 171     if (!noout)
 172         PEM_write_bio_Parameters(out, pkey);
 173
 174     if (text)
 175         EVP_PKEY_print_params(out, pkey, 0, NULL);
 176
 177     ret = 0;
 178
 179  end:
 180     EVP_PKEY_free(pkey);
 181     BIO_free_all(out);
 182     BIO_free(in);
 183
 184     return ret;
 185 }