GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/asn1/a_dup.c Lines: 10 28 35.7 %
Date: 2017-11-07 Branches: 2 8 25.0 %

Line Branch Exec Source
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/* $OpenBSD: a_dup.c,v 1.14 2017/01/29 17:49:22 beck 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/asn1.h>
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#include <openssl/err.h>
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#ifndef NO_OLD_ASN1
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void *
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ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x)
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{
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	unsigned char *b, *p;
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	const unsigned char *p2;
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	int i;
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	char *ret;
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	if (x == NULL)
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		return (NULL);
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	i = i2d(x, NULL);
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	b = malloc(i + 10);
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	if (b == NULL) {
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		ASN1error(ERR_R_MALLOC_FAILURE);
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		return (NULL);
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	}
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	p = b;
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	i = i2d(x, &p);
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	p2 = b;
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	ret = d2i(NULL, &p2, i);
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	free(b);
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	return (ret);
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}
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#endif
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/* ASN1_ITEM version of dup: this follows the model above except we don't need
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 * to allocate the buffer. At some point this could be rewritten to directly dup
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 * the underlying structure instead of doing and encode and decode.
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 */
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void *
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ASN1_item_dup(const ASN1_ITEM *it, void *x)
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{
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	unsigned char *b = NULL;
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	const unsigned char *p;
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	long i;
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	void *ret;
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	if (x == NULL)
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		return (NULL);
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	i = ASN1_item_i2d(x, &b, it);
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	if (b == NULL) {
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		ASN1error(ERR_R_MALLOC_FAILURE);
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		return (NULL);
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	}
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	p = b;
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	ret = ASN1_item_d2i(NULL, &p, i, it);
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	free(b);
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	return (ret);
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}