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[master] / src / liblimb / patrim.h / patrim_put.c 

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/* This file is part of limb                           https://lila.oss/limb
 * Copyright (C) 2023 Olivier Brunel                          jjk@jjacky.com */
/* SPDX-License-Identifier: GPL-2.0-only */
#include <limb/patrim.h>
#include <limb/u64.h>

int
patrim_put(char *dst, size_t dlen, size_t offset, u64 id, u64 u)
{
    int r, n;

    if (offset >= dlen) return -1;
    r = u64_pack_trim(dst + offset, dlen - offset, id);
    if (r < 0) return -1;

    n = u64_pack_trim(dst + offset + r, dlen - offset - r, u);
    if (n < 0) return -1;

    return r + n;
}