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 } 186