1/* v3prin.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 1999. 5 */ 6/* ==================================================================== 7 * Copyright (c) 1999 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 60#include <stdio.h> 61#include <openssl/asn1.h> 62#include <openssl/conf.h> 63#include <openssl/x509.h> 64#include <openssl/x509v3.h> 65 66int main(int argc, char **argv) 67{ 68 X509 *cert; 69 FILE *inf; 70 int i, count; 71 X509_EXTENSION *ext; 72 X509V3_add_standard_extensions(); 73 ERR_load_crypto_strings(); 74 if (!argv[1]) { 75 fprintf(stderr, "Usage v3prin cert.pem\n"); 76 exit(1); 77 } 78 if (!(inf = fopen(argv[1], "r"))) { 79 fprintf(stderr, "Can't open %s\n", argv[1]); 80 exit(1); 81 } 82 if (!(cert = PEM_read_X509(inf, NULL, NULL))) { 83 fprintf(stderr, "Can't read certificate %s\n", argv[1]); 84 ERR_print_errors_fp(stderr); 85 exit(1); 86 } 87 fclose(inf); 88 count = X509_get_ext_count(cert); 89 printf("%d extensions\n", count); 90 for (i = 0; i < count; i++) { 91 ext = X509_get_ext(cert, i); 92 printf("%s\n", OBJ_nid2ln(OBJ_obj2nid(ext->object))); 93 if (!X509V3_EXT_print_fp(stdout, ext, 0, 0)) 94 ERR_print_errors_fp(stderr); 95 printf("\n"); 96 97 } 98 return 0; 99} 100