1 /* v3prin.c */

     2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

     3  * project 1999.

     4  */

     5 /* ====================================================================

     6  * Copyright (c) 1999 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 

    60 

    61 #include <stdio.h>

    62 #include <openssl/asn1.h>

    63 #include <openssl/conf.h>

    64 #include <openssl/x509.h>

    65 #include <openssl/x509v3.h>

    66 

    67 int main(int argc, char **argv)

    68 {

    69 	X509 *cert;

    70 	FILE *inf;

    71 	int i, count;

    72 	X509_EXTENSION *ext;

    73 	X509V3_add_standard_extensions();

    74 	ERR_load_crypto_strings();

    75 	if(!argv[1]) {

    76 		fprintf(stderr, "Usage v3prin cert.pem\n");

    77 		exit(1);

    78 	}

    79 	if(!(inf = fopen(argv[1], "r"))) {

    80 		fprintf(stderr, "Can't open %s\n", argv[1]);

    81 		exit(1);

    82 	}

    83 	if(!(cert = PEM_read_X509(inf, NULL, NULL))) {

    84 		fprintf(stderr, "Can't read certificate %s\n", argv[1]);

    85 		ERR_print_errors_fp(stderr);

    86 		exit(1);

    87 	}

    88 	fclose(inf);

    89 	count = X509_get_ext_count(cert);

    90 	printf("%d extensions\n", count);

    91 	for(i = 0; i < count; i++) {

    92 		ext = X509_get_ext(cert, i);

    93 		printf("%s\n", OBJ_nid2ln(OBJ_obj2nid(ext->object)));

    94 		if(!X509V3_EXT_print_fp(stdout, ext, 0, 0)) ERR_print_errors_fp(stderr);

    95 		printf("\n");

    96 		

    97 	}

    98 	return 0;

    99 }