core-lightning/bitcoin/shadouble.c
Rusty Russell 6b2d844f2a bitcoin: use ccan/mem instead of rolling own check_mem function.
Reported-by: John Newbery
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-10-26 21:06:23 +10:30

15 lines
414 B
C

#include "shadouble.h"
#include <ccan/mem/mem.h>
void sha256_double(struct sha256_double *shadouble, const void *p, size_t len)
{
sha256(&shadouble->sha, memcheck(p, len), len);
sha256(&shadouble->sha, &shadouble->sha, sizeof(shadouble->sha));
}
void sha256_double_done(struct sha256_ctx *shactx, struct sha256_double *res)
{
sha256_done(shactx, &res->sha);
sha256(&res->sha, &res->sha, sizeof(res->sha));
}