Systemd/src/basic/siphash24.h
Zbigniew Jędrzejewski-Szmek 448e7440c2 headers: add spdx tags to imported files with a known license
I added the header in the cases where the license text is present and it is
easy to find the appropriate SPDX header.

For "public domain" stuff: SDPX treats each "public domain" license as unique [1],
but luckily the one in siphash24.c is one of the identified variants. There are
some other cases which specify "public domain" but there doesn't seem to be a
SPDX identifier.

[1] https://wiki.spdx.org/view/Legal_Team/Decisions/Dealing_with_Public_Domain_within_SPDX_Files

gunicode.[ch] are imported from glib, which is licensed as LGPL2.1+,
see https://gitlab.gnome.org/GNOME/glib/-/blob/master/glib/gunicode.h.
2020-10-29 11:32:24 +01:00

50 lines
1.3 KiB
C

/* SPDX-License-Identifier: CC0-1.0 */
#pragma once
#include <inttypes.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.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_string(const char *in, struct siphash *state) {
if (!in)
return;
siphash24_compress(in, strlen(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);
}