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
30 struct mesa_sha1 *
_mesa_sha1_init(void)31 _mesa_sha1_init(void)
32 {
33 SHA1_CTX *ctx = malloc(sizeof(*ctx));
34
35 if (!ctx)
36 return NULL;
37
38 SHA1Init(ctx);
39 return (struct mesa_sha1 *) ctx;
40 }
41
42 int
_mesa_sha1_update(struct mesa_sha1 * ctx,const void * data,int size)43 _mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
44 {
45 SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
46
47 SHA1Update(sha1_ctx, data, size);
48 return 1;
49 }
50
51 int
_mesa_sha1_final(struct mesa_sha1 * ctx,unsigned char result[20])52 _mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
53 {
54 SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
55
56 SHA1Final(result, sha1_ctx);
57 free(sha1_ctx);
58 return 1;
59 }
60
61 void
_mesa_sha1_compute(const void * data,size_t size,unsigned char result[20])62 _mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
63 {
64 struct mesa_sha1 *ctx;
65
66 ctx = _mesa_sha1_init();
67 _mesa_sha1_update(ctx, data, size);
68 _mesa_sha1_final(ctx, result);
69 }
70
71 char *
_mesa_sha1_format(char * buf,const unsigned char * sha1)72 _mesa_sha1_format(char *buf, const unsigned char *sha1)
73 {
74 static const char hex_digits[] = "0123456789abcdef";
75 int i;
76
77 for (i = 0; i < 40; i += 2) {
78 buf[i] = hex_digits[sha1[i >> 1] >> 4];
79 buf[i + 1] = hex_digits[sha1[i >> 1] & 0x0f];
80 }
81 buf[i] = '\0';
82
83 return buf;
84 }
85