1 /* $OpenBSD: pkeyparam.c,v 1.8 2015/10/10 22:28:51 doug 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 rpath wpath cpath", 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 } 175