ssize_t
rsa_ed_crosscert_encode(uint8_t *output, const size_t avail, const rsa_ed_crosscert_t *obj)
{
ssize_t result = 0;
size_t written = 0;
uint8_t *ptr = output;
const char *msg;
#ifdef TRUNNEL_CHECK_ENCODED_LEN
const ssize_t encoded_len = rsa_ed_crosscert_encoded_len(obj);
#endif
if (NULL != (msg = rsa_ed_crosscert_check(obj)))
goto check_failed;
#ifdef TRUNNEL_CHECK_ENCODED_LEN
trunnel_assert(encoded_len >= 0);
#endif
/* Encode u8 ed_key[32] */
trunnel_assert(written <= avail);
if (avail - written < 32)
goto truncated;
memcpy(ptr, obj->ed_key, 32);
written += 32; ptr += 32;
/* Encode u32 expiration */
trunnel_assert(written <= avail);
if (avail - written < 4)
goto truncated;
trunnel_set_uint32(ptr, trunnel_htonl(obj->expiration));
written += 4; ptr += 4;
/* Encode u8 sig_len */
trunnel_assert(written <= avail);
if (avail - written < 1)
goto truncated;
trunnel_set_uint8(ptr, (obj->sig_len));
written += 1; ptr += 1;
/* Encode u8 sig[sig_len] */
{
size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->sig);
trunnel_assert(obj->sig_len == elt_len);
trunnel_assert(written <= avail);
if (avail - written < elt_len)
goto truncated;
memcpy(ptr, obj->sig.elts_, elt_len);
written += elt_len; ptr += elt_len;
}
trunnel_assert(ptr == output + written);
#ifdef TRUNNEL_CHECK_ENCODED_LEN
{
trunnel_assert(encoded_len >= 0);
trunnel_assert((size_t)encoded_len == written);
}
#endif
return written;
truncated:
result = -2;
goto fail;
check_failed:
(void)msg;
result = -1;
goto fail;
fail:
trunnel_assert(result < 0);
return result;
}
ssize_t
pwbox_encoded_encode(uint8_t *output, size_t avail, const pwbox_encoded_t *obj)
{
ssize_t result = 0;
size_t written = 0;
uint8_t *ptr = output;
const char *msg;
#ifdef TRUNNEL_CHECK_ENCODED_LEN
const ssize_t encoded_len = pwbox_encoded_encoded_len(obj);
#endif
int enforce_avail = 0;
const size_t avail_orig = avail;
if (NULL != (msg = pwbox_encoded_check(obj)))
goto check_failed;
#ifdef TRUNNEL_CHECK_ENCODED_LEN
trunnel_assert(encoded_len >= 0);
#endif
/* Encode u32 fixedbytes0 IN [PWBOX0_CONST0] */
trunnel_assert(written <= avail);
if (avail - written < 4)
goto truncated;
trunnel_set_uint32(ptr, trunnel_htonl(obj->fixedbytes0));
written += 4; ptr += 4;
/* Encode u32 fixedbytes1 IN [PWBOX0_CONST1] */
trunnel_assert(written <= avail);
if (avail - written < 4)
goto truncated;
trunnel_set_uint32(ptr, trunnel_htonl(obj->fixedbytes1));
written += 4; ptr += 4;
/* Encode u8 header_len */
trunnel_assert(written <= avail);
if (avail - written < 1)
goto truncated;
trunnel_set_uint8(ptr, (obj->header_len));
written += 1; ptr += 1;
/* Encode u8 skey_header[header_len] */
{
size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->skey_header);
trunnel_assert(obj->header_len == elt_len);
trunnel_assert(written <= avail);
if (avail - written < elt_len)
goto truncated;
memcpy(ptr, obj->skey_header.elts_, elt_len);
written += elt_len; ptr += elt_len;
}
/* Encode u8 iv[16] */
trunnel_assert(written <= avail);
if (avail - written < 16)
goto truncated;
memcpy(ptr, obj->iv, 16);
written += 16; ptr += 16;
{
/* Encode u8 data[] */
{
size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->data);
trunnel_assert(written <= avail);
if (avail - written < elt_len)
goto truncated;
memcpy(ptr, obj->data.elts_, elt_len);
written += elt_len; ptr += elt_len;
}
trunnel_assert(written <= avail);
if (avail - written < 32)
goto truncated;
avail = written + 32;
enforce_avail = 1;
}
/* Encode u8 hmac[32] */
trunnel_assert(written <= avail);
if (avail - written < 32) {
if (avail_orig - written < 32)
goto truncated;
else
goto check_failed;
}
memcpy(ptr, obj->hmac, 32);
written += 32; ptr += 32;
trunnel_assert(ptr == output + written);
if (enforce_avail && avail != written)
goto check_failed;
#ifdef TRUNNEL_CHECK_ENCODED_LEN
{
trunnel_assert(encoded_len >= 0);
trunnel_assert((size_t)encoded_len == written);
}
#endif
return written;
truncated:
result = -2;
goto fail;
check_failed:
(void)msg;
result = -1;
goto fail;
fail:
trunnel_assert(result < 0);
return result;
}
