1/* Copyright © 2007 Carl Worth
2 * Copyright © 2009 Jeremy Huddleston, Julien Cristau, and Matthieu Herrb
3 * Copyright © 2009-2010 Mikhail Gusarov
4 * Copyright © 2012 Yaakov Selkowitz and Keith Packard
5 * Copyright © 2014 Intel Corporation
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
16 * Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 */
26
27#include "sha1/sha1.h"
28#include "mesa-sha1.h"
29
30void
31_mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
32{
33   struct mesa_sha1 ctx;
34
35   _mesa_sha1_init(&ctx);
36   _mesa_sha1_update(&ctx, data, size);
37   _mesa_sha1_final(&ctx, result);
38}
39
40void
41_mesa_sha1_format(char *buf, const unsigned char *sha1)
42{
43   static const char hex_digits[] = "0123456789abcdef";
44   int i;
45
46   for (i = 0; i < 40; i += 2) {
47      buf[i] = hex_digits[sha1[i >> 1] >> 4];
48      buf[i + 1] = hex_digits[sha1[i >> 1] & 0x0f];
49   }
50   buf[i] = '\0';
51}
52
53/* Convert a hashs string hexidecimal representation into its more compact
54 * form.
55 */
56void
57_mesa_sha1_hex_to_sha1(unsigned char *buf, const char *hex)
58{
59   for (unsigned i = 0; i < 20; i++) {
60      char tmp[3];
61      tmp[0] = hex[i * 2];
62      tmp[1] = hex[(i * 2) + 1];
63      tmp[2] = '\0';
64      buf[i] = strtol(tmp, NULL, 16);
65   }
66}
67