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 #include "hex.h"
30 #include <string.h>
31 #include <inttypes.h>
32
33 void
_mesa_sha1_compute(const void * data,size_t size,unsigned char result[20])34 _mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
35 {
36 struct mesa_sha1 ctx;
37
38 _mesa_sha1_init(&ctx);
39 _mesa_sha1_update(&ctx, data, size);
40 _mesa_sha1_final(&ctx, result);
41 }
42
43 void
_mesa_sha1_format(char * buf,const unsigned char * sha1)44 _mesa_sha1_format(char *buf, const unsigned char *sha1)
45 {
46 mesa_bytes_to_hex(buf, sha1, SHA1_DIGEST_LENGTH);
47 }
48
49 /* Convert a hashs string hexidecimal representation into its more compact
50 * form.
51 */
52 void
_mesa_sha1_hex_to_sha1(unsigned char * buf,const char * hex)53 _mesa_sha1_hex_to_sha1(unsigned char *buf, const char *hex)
54 {
55 mesa_hex_to_bytes(buf, hex, SHA1_DIGEST_LENGTH);
56 }
57
58 static void
sha1_to_uint32(const uint8_t sha1[SHA1_DIGEST_LENGTH],uint32_t out[SHA1_DIGEST_LENGTH32])59 sha1_to_uint32(const uint8_t sha1[SHA1_DIGEST_LENGTH],
60 uint32_t out[SHA1_DIGEST_LENGTH32])
61 {
62 memset(out, 0, SHA1_DIGEST_LENGTH);
63
64 for (unsigned i = 0; i < SHA1_DIGEST_LENGTH; i++)
65 out[i / 4] |= (uint32_t)sha1[i] << ((i % 4) * 8);
66 }
67
68 void
_mesa_sha1_print(FILE * f,const uint8_t sha1[SHA1_DIGEST_LENGTH])69 _mesa_sha1_print(FILE *f, const uint8_t sha1[SHA1_DIGEST_LENGTH])
70 {
71 uint32_t u32[SHA1_DIGEST_LENGTH];
72 sha1_to_uint32(sha1, u32);
73
74 for (unsigned i = 0; i < SHA1_DIGEST_LENGTH32; i++) {
75 fprintf(f, i ? ", 0x%08" PRIx32 : "0x%08" PRIx32, u32[i]);
76 }
77 }
78
79 bool
_mesa_printed_sha1_equal(const uint8_t sha1[SHA1_DIGEST_LENGTH],const uint32_t printed_sha1[SHA1_DIGEST_LENGTH32])80 _mesa_printed_sha1_equal(const uint8_t sha1[SHA1_DIGEST_LENGTH],
81 const uint32_t printed_sha1[SHA1_DIGEST_LENGTH32])
82 {
83 uint32_t u32[SHA1_DIGEST_LENGTH32];
84 sha1_to_uint32(sha1, u32);
85
86 return memcmp(u32, printed_sha1, sizeof(u32)) == 0;
87 }
88