GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/x509/x509type.c Lines: 15 28 53.6 %
Date: 2017-11-13 Branches: 11 27 40.7 %

Line Branch Exec Source
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/* $OpenBSD: x509type.c,v 1.12 2015/06/13 08:38:10 doug Exp $ */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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 * All rights reserved.
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 *
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 * This package is an SSL implementation written
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 * by Eric Young (eay@cryptsoft.com).
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 * The implementation was written so as to conform with Netscapes SSL.
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 *
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 * This library is free for commercial and non-commercial use as long as
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 * the following conditions are aheared to.  The following conditions
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 * apply to all code found in this distribution, be it the RC4, RSA,
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 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
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 * included with this distribution is covered by the same copyright terms
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 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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 *
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 * Copyright remains Eric Young's, and as such any Copyright notices in
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 * the code are not to be removed.
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 * If this package is used in a product, Eric Young should be given attribution
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 * as the author of the parts of the library used.
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 * This can be in the form of a textual message at program startup or
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 * in documentation (online or textual) provided with the package.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *    "This product includes cryptographic software written by
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 *     Eric Young (eay@cryptsoft.com)"
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 *    The word 'cryptographic' can be left out if the rouines from the library
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 *    being used are not cryptographic related :-).
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 * 4. If you include any Windows specific code (or a derivative thereof) from
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 *    the apps directory (application code) you must include an acknowledgement:
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 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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 *
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 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * The licence and distribution terms for any publically available version or
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 * derivative of this code cannot be changed.  i.e. this code cannot simply be
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 * copied and put under another distribution licence
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 * [including the GNU Public Licence.]
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 */
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#include <stdio.h>
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#include <openssl/evp.h>
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#include <openssl/objects.h>
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#include <openssl/x509.h>
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int
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X509_certificate_type(X509 *x, EVP_PKEY *pkey)
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{
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	EVP_PKEY *pk;
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	int ret = 0, i;
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	if (x == NULL)
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		return (0);
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	if (pkey == NULL)
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		pk = X509_get_pubkey(x);
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	else
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		pk = pkey;
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	if (pk == NULL)
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		return (0);
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	switch (pk->type) {
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	case EVP_PKEY_RSA:
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		ret = EVP_PK_RSA|EVP_PKT_SIGN;
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/*		if (!sign only extension) */
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		ret |= EVP_PKT_ENC;
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		break;
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	case EVP_PKEY_DSA:
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		ret = EVP_PK_DSA|EVP_PKT_SIGN;
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		break;
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	case EVP_PKEY_EC:
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		ret = EVP_PK_EC|EVP_PKT_SIGN|EVP_PKT_EXCH;
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		break;
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	case EVP_PKEY_DH:
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		ret = EVP_PK_DH|EVP_PKT_EXCH;
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		break;
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	case NID_id_GostR3410_94:
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	case NID_id_GostR3410_2001:
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		ret = EVP_PKT_EXCH|EVP_PKT_SIGN;
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		break;
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	default:
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		break;
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	}
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	i = OBJ_obj2nid(x->sig_alg->algorithm);
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	if (i && OBJ_find_sigid_algs(i, NULL, &i)) {
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		switch (i) {
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		case NID_rsaEncryption:
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		case NID_rsa:
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			ret |= EVP_PKS_RSA;
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			break;
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		case NID_dsa:
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		case NID_dsa_2:
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			ret |= EVP_PKS_DSA;
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			break;
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		case NID_X9_62_id_ecPublicKey:
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			ret |= EVP_PKS_EC;
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			break;
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		default:
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			break;
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		}
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	}
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	/* /8 because it's 1024 bits we look for, not bytes */
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	if (EVP_PKEY_size(pk) <= 1024 / 8)
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		ret |= EVP_PKT_EXP;
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	if (pkey == NULL)
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		EVP_PKEY_free(pk);
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	return (ret);
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}