From 2cb7e0aaedad73b076ea18c6900b0e86c5760d79 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 15:00:47 +0200 Subject: Adding upstream version 247.3. Signed-off-by: Daniel Baumann --- src/basic/siphash24.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 src/basic/siphash24.h (limited to 'src/basic/siphash24.h') diff --git a/src/basic/siphash24.h b/src/basic/siphash24.h new file mode 100644 index 0000000..0b3e845 --- /dev/null +++ b/src/basic/siphash24.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: CC0-1.0 */ + +#pragma once + +#include +#include +#include +#include + +#include "string-util.h" +#include "time-util.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)) + +static inline void siphash24_compress_boolean(bool in, struct siphash *state) { + uint8_t i = in; + + siphash24_compress(&i, sizeof i, state); +} + +static inline void siphash24_compress_usec_t(usec_t in, struct siphash *state) { + siphash24_compress(&in, sizeof in, state); +} + +static inline void siphash24_compress_safe(const void *in, size_t inlen, struct siphash *state) { + if (inlen == 0) + return; + + siphash24_compress(in, inlen, state); +} + +static inline void siphash24_compress_string(const char *in, struct siphash *state) { + siphash24_compress_safe(in, strlen_ptr(in), 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); +} -- cgit v1.2.3