|  | /* v3prin.c */ | 
|  | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL | 
|  | * project 1999. | 
|  | */ | 
|  | /* ==================================================================== | 
|  | * Copyright (c) 1999 The OpenSSL Project.  All rights reserved. | 
|  | * | 
|  | * Redistribution and use in source and binary forms, with or without | 
|  | * modification, are permitted provided that the following conditions | 
|  | * are met: | 
|  | * | 
|  | * 1. Redistributions of source code must retain the above copyright | 
|  | *    notice, this list of conditions and the following disclaimer. | 
|  | * | 
|  | * 2. Redistributions in binary form must reproduce the above copyright | 
|  | *    notice, this list of conditions and the following disclaimer in | 
|  | *    the documentation and/or other materials provided with the | 
|  | *    distribution. | 
|  | * | 
|  | * 3. All advertising materials mentioning features or use of this | 
|  | *    software must display the following acknowledgment: | 
|  | *    "This product includes software developed by the OpenSSL Project | 
|  | *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | 
|  | * | 
|  | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | 
|  | *    endorse or promote products derived from this software without | 
|  | *    prior written permission. For written permission, please contact | 
|  | *    licensing@OpenSSL.org. | 
|  | * | 
|  | * 5. Products derived from this software may not be called "OpenSSL" | 
|  | *    nor may "OpenSSL" appear in their names without prior written | 
|  | *    permission of the OpenSSL Project. | 
|  | * | 
|  | * 6. Redistributions of any form whatsoever must retain the following | 
|  | *    acknowledgment: | 
|  | *    "This product includes software developed by the OpenSSL Project | 
|  | *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | 
|  | * | 
|  | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | 
|  | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
|  | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 
|  | * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR | 
|  | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 
|  | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | 
|  | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 
|  | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | 
|  | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | 
|  | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 
|  | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | 
|  | * OF THE POSSIBILITY OF SUCH DAMAGE. | 
|  | * ==================================================================== | 
|  | * | 
|  | * This product includes cryptographic software written by Eric Young | 
|  | * (eay@cryptsoft.com).  This product includes software written by Tim | 
|  | * Hudson (tjh@cryptsoft.com). | 
|  | * | 
|  | */ | 
|  |  | 
|  |  | 
|  |  | 
|  | #include <stdio.h> | 
|  | #include "cryptlib.h" | 
|  | #include "asn1.h" | 
|  | #include "asn1_mac.h" | 
|  | #include "conf.h" | 
|  | #include "x509.h" | 
|  | #include "x509v3.h" | 
|  |  | 
|  | int main(argc, argv) | 
|  | int argc; | 
|  | char **argv; | 
|  | { | 
|  | X509 *cert; | 
|  | FILE *inf; | 
|  | int i, count; | 
|  | X509_EXTENSION *ext; | 
|  | X509V3_add_standard_extensions(); | 
|  | ERR_load_crypto_strings(); | 
|  | if(!argv[1]) { | 
|  | fprintf(stderr, "Usage v3prin cert.pem\n"); | 
|  | exit(1); | 
|  | } | 
|  | if(!(inf = fopen(argv[1], "r"))) { | 
|  | fprintf(stderr, "Can't open %s\n", argv[1]); | 
|  | exit(1); | 
|  | } | 
|  | if(!(cert = PEM_read_X509(inf, NULL, NULL))) { | 
|  | fprintf(stderr, "Can't read certificate %s\n", argv[1]); | 
|  | ERR_print_errors_fp(stderr); | 
|  | exit(1); | 
|  | } | 
|  | fclose(inf); | 
|  | count = X509_get_ext_count(cert); | 
|  | printf("%d extensions\n", count); | 
|  | for(i = 0; i < count; i++) { | 
|  | ext = X509_get_ext(cert, i); | 
|  | printf("%s\n", OBJ_nid2ln(OBJ_obj2nid(ext->object))); | 
|  | if(!X509V3_EXT_print_fp(stdout, ext, 0)) ERR_print_errors_fp(stderr); | 
|  | printf("\n"); | 
|  |  | 
|  | } | 
|  | return 0; | 
|  | } |