/usr/include/zdigest.h is in libczmq-dev 3.0.2-5.
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 | /* =========================================================================
zdigest - provides hashing functions (SHA-1 at present)
Copyright (c) the Contributors as noted in the AUTHORS file.
This file is part of CZMQ, the high-level C binding for 0MQ:
http://czmq.zeromq.org.
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/.
=========================================================================
*/
#ifndef __ZDIGEST_H_INCLUDED__
#define __ZDIGEST_H_INCLUDED__
#ifdef __cplusplus
extern "C" {
#endif
// @interface
// Constructor - creates new digest object, which you use to build up a
// digest by repeatedly calling zdigest_update() on chunks of data.
CZMQ_EXPORT zdigest_t *
zdigest_new (void);
// Destroy a digest object
CZMQ_EXPORT void
zdigest_destroy (zdigest_t **self_p);
// Add buffer into digest calculation
CZMQ_EXPORT void
zdigest_update (zdigest_t *self, byte *buffer, size_t length);
// Return final digest hash data. If built without crypto support, returns
// NULL.
CZMQ_EXPORT byte *
zdigest_data (zdigest_t *self);
// Return final digest hash size
CZMQ_EXPORT size_t
zdigest_size (zdigest_t *self);
// Return digest as printable hex string; caller should not modify nor
// free this string. After calling this, you may not use zdigest_update()
// on the same digest. If built without crypto support, returns NULL.
CZMQ_EXPORT char *
zdigest_string (zdigest_t *self);
// Self test of this class
CZMQ_EXPORT void
zdigest_test (bool verbose);
// @end
#ifdef __cplusplus
}
#endif
#endif
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