[thirdparty/systemd.git] / src / basic / siphash24.h

#pragma once

#include <inttypes.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>

struct siphash {
        uint64_t v0;
        uint64_t v1;
        uint64_t v2;
        uint64_t v3;
        uint64_t padding;
        size_t inlen;
};

void siphash24_init(struct siphash *state, const uint8_t k[static 16]);
void siphash24_compress(const void *in, size_t inlen, struct siphash *state);
#define siphash24_compress_byte(byte, state) siphash24_compress((const uint8_t[]) { (byte) }, 1, (state))

uint64_t siphash24_finalize(struct siphash *state);

uint64_t siphash24(const void *in, size_t inlen, const uint8_t k[static 16]);

static inline uint64_t siphash24_string(const char *s, const uint8_t k[static 16]) {
        return siphash24(s, strlen(s) + 1, k);
}
Commit	Line	Data
9bf3b535 LP	1	#pragma once
	2
	3	#include <inttypes.h>
11c3a366 TA	4	#include <stddef.h>
11c3a366 TA	5	#include <stdint.h>
a53f90ca	6	#include <string.h>
9bf3b535 LP	7	#include <sys/types.h>
9bf3b535 LP	8
7c57f504	9	struct siphash {
6059dab8 LP	10	uint64_t v0;
	11	uint64_t v1;
	12	uint64_t v2;
	13	uint64_t v3;
	14	uint64_t padding;
	15	size_t inlen;
7c57f504 TG	16	};
7c57f504 TG	17
3042bbeb	18	void siphash24_init(struct siphash *state, const uint8_t k[static 16]);
7c57f504	19	void siphash24_compress(const void in, size_t inlen, struct siphash state);
d5115566 LP	20	#define siphash24_compress_byte(byte, state) siphash24_compress((const uint8_t[]) { (byte) }, 1, (state))
d5115566 LP	21
933f9cae	22	uint64_t siphash24_finalize(struct siphash *state);
7c57f504	23
3042bbeb	24	uint64_t siphash24(const void *in, size_t inlen, const uint8_t k[static 16]);
a53f90ca	25
3042bbeb	26	static inline uint64_t siphash24_string(const char *s, const uint8_t k[static 16]) {
a53f90ca LP	27	return siphash24(s, strlen(s) + 1, k);
a53f90ca LP	28	}