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e_null.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/evp/e_null.c
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1/* $OpenBSD: e_null.c,v 1.14 2014/07/11 08:44:48 jsing Exp $ */-
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)-
3 * All rights reserved.-
4 *-
5 * This package is an SSL implementation written-
6 * by Eric Young (eay@cryptsoft.com).-
7 * The implementation was written so as to conform with Netscapes SSL.-
8 *-
9 * This library is free for commercial and non-commercial use as long as-
10 * the following conditions are aheared to. The following conditions-
11 * apply to all code found in this distribution, be it the RC4, RSA,-
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation-
13 * included with this distribution is covered by the same copyright terms-
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).-
15 *-
16 * Copyright remains Eric Young's, and as such any Copyright notices in-
17 * the code are not to be removed.-
18 * If this package is used in a product, Eric Young should be given attribution-
19 * as the author of the parts of the library used.-
20 * This can be in the form of a textual message at program startup or-
21 * in documentation (online or textual) provided with the package.-
22 *-
23 * Redistribution and use in source and binary forms, with or without-
24 * modification, are permitted provided that the following conditions-
25 * are met:-
26 * 1. Redistributions of source code must retain the copyright-
27 * notice, this list of conditions and the following disclaimer.-
28 * 2. Redistributions in binary form must reproduce the above copyright-
29 * notice, this list of conditions and the following disclaimer in the-
30 * documentation and/or other materials provided with the distribution.-
31 * 3. All advertising materials mentioning features or use of this software-
32 * must display the following acknowledgement:-
33 * "This product includes cryptographic software written by-
34 * Eric Young (eay@cryptsoft.com)"-
35 * The word 'cryptographic' can be left out if the rouines from the library-
36 * being used are not cryptographic related :-).-
37 * 4. If you include any Windows specific code (or a derivative thereof) from-
38 * the apps directory (application code) you must include an acknowledgement:-
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"-
40 *-
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND-
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE-
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE-
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL-
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS-
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT-
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY-
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF-
51 * SUCH DAMAGE.-
52 *-
53 * The licence and distribution terms for any publically available version or-
54 * derivative of this code cannot be changed. i.e. this code cannot simply be-
55 * copied and put under another distribution licence-
56 * [including the GNU Public Licence.]-
57 */-
58-
59#include <stdio.h>-
60#include <string.h>-
61-
62#include <openssl/evp.h>-
63#include <openssl/objects.h>-
64-
65static int null_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,-
66 const unsigned char *iv, int enc);-
67static int null_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,-
68 const unsigned char *in, size_t inl);-
69-
70static const EVP_CIPHER n_cipher = {-
71 NID_undef,-
72 1, 0, 0,-
73 0,-
74 null_init_key,-
75 null_cipher,-
76 NULL,-
77 0,-
78 NULL,-
79 NULL,-
80 NULL,-
81 NULL-
82};-
83-
84const EVP_CIPHER *-
85EVP_enc_null(void)-
86{-
87 return (&n_cipher);
executed 6 times by 1 test: return (&n_cipher);
Executed by:
  • ssltest
6
88}-
89-
90static int-
91null_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,-
92 const unsigned char *iv, int enc)-
93{-
94 /* memset(&(ctx->c),0,sizeof(ctx->c));*/-
95 return 1;
executed 12 times by 1 test: return 1;
Executed by:
  • ssltest
12
96}-
97-
98static int-
99null_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,-
100 const unsigned char *in, size_t inl)-
101{-
102 if (in != out)
in != outDescription
TRUEnever evaluated
FALSEevaluated 30 times by 1 test
Evaluated by:
  • ssltest
0-30
103 memcpy((char *)out, (const char *)in, inl);
never executed: memcpy((char *)out, (const char *)in, inl);
0
104 return 1;
executed 30 times by 1 test: return 1;
Executed by:
  • ssltest
30
105}-
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