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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/engine/tb_digest.c	Lines:	3	29	10.3 %
Date:	2017-11-07	Branches:	1	18	5.6 %


/* $OpenBSD: tb_digest.c,v 1.8 2017/01/29 17:49:23 beck Exp $ */
/* ====================================================================
 * Copyright (c) 2000 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 <openssl/err.h>

#include "eng_int.h"

/* If this symbol is defined then ENGINE_get_digest_engine(), the function that
 * is used by EVP to hook in digest code and cache defaults (etc), will display
 * brief debugging summaries to stderr with the 'nid'. */
/* #define ENGINE_DIGEST_DEBUG */

static ENGINE_TABLE *digest_table = NULL;

void
ENGINE_unregister_digests(ENGINE *e)
{
	engine_table_unregister(&digest_table, e);
}

static void
engine_unregister_all_digests(void)
{
	engine_table_cleanup(&digest_table);
}

int
ENGINE_register_digests(ENGINE *e)
{
	if (e->digests) {
		const int *nids;
		int num_nids = e->digests(e, NULL, &nids, 0);
		if (num_nids > 0)
			return engine_table_register(&digest_table,
			    engine_unregister_all_digests, e, nids,
			    num_nids, 0);
	}
	return 1;
}

void
ENGINE_register_all_digests(void)
{
	ENGINE *e;

	for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
		ENGINE_register_digests(e);
}

int
ENGINE_set_default_digests(ENGINE *e)
{
	if (e->digests) {
		const int *nids;
		int num_nids = e->digests(e, NULL, &nids, 0);
		if (num_nids > 0)
			return engine_table_register(&digest_table,
			    engine_unregister_all_digests, e, nids,
			    num_nids, 1);
	}
	return 1;
}

/* Exposed API function to get a functional reference from the implementation
 * table (ie. try to get a functional reference from the tabled structural
 * references) for a given digest 'nid' */
ENGINE *
ENGINE_get_digest_engine(int nid)
{
	return engine_table_select(&digest_table, nid);
}

/* Obtains a digest implementation from an ENGINE functional reference */
const EVP_MD *
ENGINE_get_digest(ENGINE *e, int nid)
{
	const EVP_MD *ret;
	ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);

	if (!fn || !fn(e, &ret, NULL, nid)) {
		ENGINEerror(ENGINE_R_UNIMPLEMENTED_DIGEST);
		return NULL;
	}
	return ret;
}

/* Gets the digest callback from an ENGINE structure */
ENGINE_DIGESTS_PTR
ENGINE_get_digests(const ENGINE *e)
{
	return e->digests;
}

/* Sets the digest callback in an ENGINE structure */
int
ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)
{
	e->digests = f;
	return 1;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: tb_digest.c,v 1.8 2017/01/29 17:49:23 beck Exp $ */
2			/* ====================================================================
3			* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
4			*
5			* Redistribution and use in source and binary forms, with or without
6			* modification, are permitted provided that the following conditions
7			* are met:
8			*
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			*
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in
14			* the documentation and/or other materials provided with the
15			* distribution.
16			*
17			* 3. All advertising materials mentioning features or use of this
18			* software must display the following acknowledgment:
19			* "This product includes software developed by the OpenSSL Project
20			* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21			*
22			* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23			* endorse or promote products derived from this software without
24			* prior written permission. For written permission, please contact
25			* licensing@OpenSSL.org.
26			*
27			* 5. Products derived from this software may not be called "OpenSSL"
28			* nor may "OpenSSL" appear in their names without prior written
29			* permission of the OpenSSL Project.
30			*
31			* 6. Redistributions of any form whatsoever must retain the following
32			* acknowledgment:
33			* "This product includes software developed by the OpenSSL Project
34			* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35			*
36			* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37			* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39			* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45			* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46			* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47			* OF THE POSSIBILITY OF SUCH DAMAGE.
48			* ====================================================================
49			*
50			* This product includes cryptographic software written by Eric Young
51			* (eay@cryptsoft.com). This product includes software written by Tim
52			* Hudson (tjh@cryptsoft.com).
53			*
54			*/
55
56			#include <openssl/err.h>
57
58			#include "eng_int.h"
59
60			/* If this symbol is defined then ENGINE_get_digest_engine(), the function that
61			* is used by EVP to hook in digest code and cache defaults (etc), will display
62			* brief debugging summaries to stderr with the 'nid'. */
63			/* #define ENGINE_DIGEST_DEBUG */
64
65			static ENGINE_TABLE *digest_table = NULL;
66
67			void
68			ENGINE_unregister_digests(ENGINE *e)
69			{
70			engine_table_unregister(&digest_table, e);
71			}
72
73			static void
74			engine_unregister_all_digests(void)
75			{
76			engine_table_cleanup(&digest_table);
77			}
78
79			int
80			ENGINE_register_digests(ENGINE *e)
81			{
82			if (e->digests) {
83			const int *nids;
84			int num_nids = e->digests(e, NULL, &nids, 0);
85			if (num_nids > 0)
86			return engine_table_register(&digest_table,
87			engine_unregister_all_digests, e, nids,
88			num_nids, 0);
89			}
90			return 1;
91			}
92
93			void
94			ENGINE_register_all_digests(void)
95			{
96			ENGINE *e;
97
98	✗✓	36	for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
99			ENGINE_register_digests(e);
100		12	}
101
102			int
103			ENGINE_set_default_digests(ENGINE *e)
104			{
105			if (e->digests) {
106			const int *nids;
107			int num_nids = e->digests(e, NULL, &nids, 0);
108			if (num_nids > 0)
109			return engine_table_register(&digest_table,
110			engine_unregister_all_digests, e, nids,
111			num_nids, 1);
112			}
113			return 1;
114			}
115
116			/* Exposed API function to get a functional reference from the implementation
117			* table (ie. try to get a functional reference from the tabled structural
118			* references) for a given digest 'nid' */
119			ENGINE *
120			ENGINE_get_digest_engine(int nid)
121			{
122		804074	return engine_table_select(&digest_table, nid);
123			}
124
125			/* Obtains a digest implementation from an ENGINE functional reference */
126			const EVP_MD *
127			ENGINE_get_digest(ENGINE *e, int nid)
128			{
129			const EVP_MD *ret;
130			ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);
131
132			if (!fn \|\| !fn(e, &ret, NULL, nid)) {
133			ENGINEerror(ENGINE_R_UNIMPLEMENTED_DIGEST);
134			return NULL;
135			}
136			return ret;
137			}
138
139			/* Gets the digest callback from an ENGINE structure */
140			ENGINE_DIGESTS_PTR
141			ENGINE_get_digests(const ENGINE *e)
142			{
143			return e->digests;
144			}
145
146			/* Sets the digest callback in an ENGINE structure */
147			int
148			ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)
149			{
150			e->digests = f;
151			return 1;
152			}