1 /* apps/pkeyparam.c */ 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 #include <stdio.h> 59 #include <string.h> 60 #include "apps.h" 61 #include <openssl/pem.h> 62 #include <openssl/err.h> 63 #include <openssl/evp.h> 64 65 #define PROG pkeyparam_main 66 67 int MAIN(int, char **); 68 69 int MAIN(int argc, char **argv) 70 { 71 char **args, *infile = NULL, *outfile = NULL; 72 BIO *in = NULL, *out = NULL; 73 int text = 0, noout = 0; 74 EVP_PKEY *pkey=NULL; 75 int badarg = 0; 76 #ifndef OPENSSL_NO_ENGINE 77 char *engine=NULL; 78 #endif 79 int ret = 1; 80 81 if (bio_err == NULL) 82 bio_err = BIO_new_fp (stderr, BIO_NOCLOSE); 83 84 if (!load_config(bio_err, NULL)) 85 goto end; 86 87 ERR_load_crypto_strings(); 88 OpenSSL_add_all_algorithms(); 89 args = argv + 1; 90 while (!badarg && *args && *args[0] == '-') 91 { 92 if (!strcmp (*args, "-in")) 93 { 94 if (args[1]) 95 { 96 args++; 97 infile = *args; 98 } 99 else badarg = 1; 100 } 101 else if (!strcmp (*args, "-out")) 102 { 103 if (args[1]) 104 { 105 args++; 106 outfile = *args; 107 } 108 else badarg = 1; 109 } 110 #ifndef OPENSSL_NO_ENGINE 111 else if (strcmp(*args,"-engine") == 0) 112 { 113 if (!args[1]) goto bad; 114 engine= *(++args); 115 } 116 #endif 117 118 else if (strcmp(*args,"-text") == 0) 119 text=1; 120 else if (strcmp(*args,"-noout") == 0) 121 noout=1; 122 args++; 123 } 124 125 if (badarg) 126 { 127 #ifndef OPENSSL_NO_ENGINE 128 bad: 129 #endif 130 BIO_printf(bio_err, "Usage pkeyparam [options]\n"); 131 BIO_printf(bio_err, "where options are\n"); 132 BIO_printf(bio_err, "-in file input file\n"); 133 BIO_printf(bio_err, "-out file output file\n"); 134 BIO_printf(bio_err, "-text print parameters as text\n"); 135 BIO_printf(bio_err, "-noout don't output encoded parameters\n"); 136 #ifndef OPENSSL_NO_ENGINE 137 BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n"); 138 #endif 139 return 1; 140 } 141 142 #ifndef OPENSSL_NO_ENGINE 143 setup_engine(bio_err, engine, 0); 144 #endif 145 146 if (infile) 147 { 148 if (!(in = BIO_new_file (infile, "r"))) 149 { 150 BIO_printf(bio_err, 151 "Can't open input file %s\n", infile); 152 goto end; 153 } 154 } 155 else 156 in = BIO_new_fp (stdin, BIO_NOCLOSE); 157 158 if (outfile) 159 { 160 if (!(out = BIO_new_file (outfile, "w"))) 161 { 162 BIO_printf(bio_err, 163 "Can't open output file %s\n", outfile); 164 goto end; 165 } 166 } 167 else 168 { 169 out = BIO_new_fp (stdout, BIO_NOCLOSE); 170 #ifdef OPENSSL_SYS_VMS 171 { 172 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 173 out = BIO_push(tmpbio, out); 174 } 175 #endif 176 } 177 178 pkey = PEM_read_bio_Parameters(in, NULL); 179 if (!pkey) 180 { 181 BIO_printf(bio_err, "Error reading parameters\n"); 182 ERR_print_errors(bio_err); 183 goto end; 184 } 185 186 if (!noout) 187 PEM_write_bio_Parameters(out,pkey); 188 189 if (text) 190 EVP_PKEY_print_params(out, pkey, 0, NULL); 191 192 ret = 0; 193 194 end: 195 EVP_PKEY_free(pkey); 196 BIO_free_all(out); 197 BIO_free(in); 198 199 return ret; 200 } 201