1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* See LICENSE file for copyright and license details. */
#include "common.h"
#if defined(__clang__)
# pragma clang diagnostic ignored "-Wcast-align"
#endif
/**
* Marshal a `struct libkeccak_state` into a buffer
*
* @param state The state to marshal
* @param data_ The output buffer, can be `NULL`
* @return The number of bytes stored to `data`
*/
size_t
libkeccak_state_marshal(const struct libkeccak_state *restrict state, void *restrict data_)
{
#define set(type, var) *((type *)data) = state->var, data += sizeof(type)
unsigned char *restrict data = data_;
if (data) {
set(long int, r);
set(long int, c);
set(long int, n);
set(long int, b);
set(long int, w);
set(int64_t, wmod);
set(long int, l);
set(long int, nr);
memcpy(data, state->S, sizeof(state->S));
data += sizeof(state->S);
set(size_t, mptr);
set(size_t, mlen);
memcpy(data, state->M, state->mptr * sizeof(char));
data += state->mptr;
}
return sizeof(struct libkeccak_state) - sizeof(char *) + state->mptr * sizeof(char);
#undef set
}
|
