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- /* 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 <openssl/asn1.h>
- #include <openssl/conf.h>
- #include <openssl/x509.h>
- #include <openssl/x509v3.h>
- int main(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, 0)) ERR_print_errors_fp(stderr);
- printf("\n");
-
- }
- return 0;
- }
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