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/* Copyright © 2007 Carl Worth
* Copyright © 2009 Jeremy Huddleston, Julien Cristau, and Matthieu Herrb
* Copyright © 2009-2010 Mikhail Gusarov
* Copyright © 2012 Yaakov Selkowitz and Keith Packard
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "sha1/sha1.h"
#include "mesa-sha1.h"
#include "hex.h"
#include <string.h>
#include <inttypes.h>
void
_mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
{
struct mesa_sha1 ctx;
_mesa_sha1_init(&ctx);
_mesa_sha1_update(&ctx, data, size);
_mesa_sha1_final(&ctx, result);
}
void
_mesa_sha1_format(char *buf, const unsigned char *sha1)
{
mesa_bytes_to_hex(buf, sha1, SHA1_DIGEST_LENGTH);
}
/* Convert a hashs string hexidecimal representation into its more compact
* form.
*/
void
_mesa_sha1_hex_to_sha1(unsigned char *buf, const char *hex)
{
mesa_hex_to_bytes(buf, hex, SHA1_DIGEST_LENGTH);
}
static void
sha1_to_uint32(const uint8_t sha1[SHA1_DIGEST_LENGTH],
uint32_t out[SHA1_DIGEST_LENGTH32])
{
memset(out, 0, SHA1_DIGEST_LENGTH);
for (unsigned i = 0; i < SHA1_DIGEST_LENGTH; i++)
out[i / 4] |= (uint32_t)sha1[i] << ((i % 4) * 8);
}
void
_mesa_sha1_print(FILE *f, const uint8_t sha1[SHA1_DIGEST_LENGTH])
{
uint32_t u32[SHA1_DIGEST_LENGTH];
sha1_to_uint32(sha1, u32);
for (unsigned i = 0; i < SHA1_DIGEST_LENGTH32; i++) {
fprintf(f, i ? ", 0x%08" PRIx32 : "0x%08" PRIx32, u32[i]);
}
}
bool
_mesa_printed_sha1_equal(const uint8_t sha1[SHA1_DIGEST_LENGTH],
const uint32_t printed_sha1[SHA1_DIGEST_LENGTH32])
{
uint32_t u32[SHA1_DIGEST_LENGTH32];
sha1_to_uint32(sha1, u32);
return memcmp(u32, printed_sha1, sizeof(u32)) == 0;
}
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