1 /* $OpenBSD: pkeyparam.c,v 1.19 2024/08/29 17:01:02 tb 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 static struct { 69 char *infile; 70 int noout; 71 char *outfile; 72 int text; 73 } cfg; 74 75 static const struct option pkeyparam_options[] = { 76 { 77 .name = "in", 78 .argname = "file", 79 .desc = "Input file (default stdin)", 80 .type = OPTION_ARG, 81 .opt.arg = &cfg.infile, 82 }, 83 { 84 .name = "noout", 85 .desc = "Do not print encoded version of the parameters", 86 .type = OPTION_FLAG, 87 .opt.flag = &cfg.noout, 88 }, 89 { 90 .name = "out", 91 .argname = "file", 92 .desc = "Output file (default stdout)", 93 .type = OPTION_ARG, 94 .opt.arg = &cfg.outfile, 95 }, 96 { 97 .name = "text", 98 .desc = "Print out the parameters in plain text", 99 .type = OPTION_FLAG, 100 .opt.flag = &cfg.text, 101 }, 102 { NULL }, 103 }; 104 105 static void 106 pkeyparam_usage(void) 107 { 108 fprintf(stderr, 109 "usage: pkeyparam [-in file] [-noout] [-out file] [-text]\n"); 110 options_usage(pkeyparam_options); 111 } 112 113 int 114 pkeyparam_main(int argc, char **argv) 115 { 116 BIO *in = NULL, *out = NULL; 117 EVP_PKEY *pkey = NULL; 118 int ret = 1; 119 120 if (pledge("stdio cpath wpath rpath", NULL) == -1) { 121 perror("pledge"); 122 exit(1); 123 } 124 125 memset(&cfg, 0, sizeof(cfg)); 126 127 if (options_parse(argc, argv, pkeyparam_options, NULL, NULL) != 0) { 128 pkeyparam_usage(); 129 return (1); 130 } 131 132 if (cfg.infile) { 133 if (!(in = BIO_new_file(cfg.infile, "r"))) { 134 BIO_printf(bio_err, "Can't open input file %s\n", 135 cfg.infile); 136 goto end; 137 } 138 } else 139 in = BIO_new_fp(stdin, BIO_NOCLOSE); 140 141 if (cfg.outfile) { 142 if (!(out = BIO_new_file(cfg.outfile, "w"))) { 143 BIO_printf(bio_err, "Can't open output file %s\n", 144 cfg.outfile); 145 goto end; 146 } 147 } else { 148 out = BIO_new_fp(stdout, BIO_NOCLOSE); 149 } 150 151 pkey = PEM_read_bio_Parameters(in, NULL); 152 if (!pkey) { 153 BIO_printf(bio_err, "Error reading parameters\n"); 154 ERR_print_errors(bio_err); 155 goto end; 156 } 157 158 if (!cfg.noout) 159 PEM_write_bio_Parameters(out, pkey); 160 161 if (cfg.text) 162 EVP_PKEY_print_params(out, pkey, 0, NULL); 163 164 ret = 0; 165 166 end: 167 EVP_PKEY_free(pkey); 168 BIO_free_all(out); 169 BIO_free(in); 170 171 return ret; 172 } 173