This file is indexed.

/usr/include/isc/md5.h is in libbind-dev 1:9.11.3+dfsg-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
/*
 * Copyright (C) 2000, 2001, 2004-2007, 2009, 2010, 2014, 2016-2018  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/* $Id: md5.h,v 1.20 2010/01/07 23:48:54 tbox Exp $ */

/*! \file isc/md5.h
 * \brief This is the header file for the MD5 message-digest algorithm.
 *
 * The algorithm is due to Ron Rivest.  This code was
 * written by Colin Plumb in 1993, no copyright is claimed.
 * This code is in the public domain; do with it what you wish.
 *
 * Equivalent code is available from RSA Data Security, Inc.
 * This code has been tested against that, and is equivalent,
 * except that you don't need to include two pages of legalese
 * with every copy.
 *
 * To compute the message digest of a chunk of bytes, declare an
 * MD5Context structure, pass it to MD5Init, call MD5Update as
 * needed on buffers full of bytes, and then call MD5Final, which
 * will fill a supplied 16-byte array with the digest.
 *
 * Changed so as no longer to depend on Colin Plumb's `usual.h'
 * header definitions; now uses stuff from dpkg's config.h
 *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
 * Still in the public domain.
 */

#ifndef ISC_MD5_H
#define ISC_MD5_H 1

#include <pk11/site.h>

#ifndef PK11_MD5_DISABLE

#include <isc/lang.h>
#include <isc/platform.h>
#include <isc/types.h>

#define ISC_MD5_DIGESTLENGTH 16U
#define ISC_MD5_BLOCK_LENGTH 64U

#ifdef ISC_PLATFORM_OPENSSLHASH
#include <openssl/opensslv.h>
#include <openssl/evp.h>

typedef struct {
	EVP_MD_CTX *ctx;
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
	EVP_MD_CTX _ctx;
#endif
} isc_md5_t;

#elif PKCS11CRYPTO
#include <pk11/pk11.h>

typedef pk11_context_t isc_md5_t;

#else

typedef struct {
	isc_uint32_t buf[4];
	isc_uint32_t bytes[2];
	isc_uint32_t in[16];
} isc_md5_t;
#endif

ISC_LANG_BEGINDECLS

void
isc_md5_init(isc_md5_t *ctx);

void
isc_md5_invalidate(isc_md5_t *ctx);

void
isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);

void
isc_md5_final(isc_md5_t *ctx, unsigned char *digest);

isc_boolean_t
isc_md5_check(isc_boolean_t testing);

ISC_LANG_ENDDECLS

#endif /* !PK11_MD5_DISABLE */

#endif /* ISC_MD5_H */