int
der_get_oid (const unsigned char *p, size_t len,
oid *data, size_t *size)
{
int n;
size_t oldlen = len;
if (len < 1)
return ASN1_OVERRUN;
data->components = malloc((len + 1) * sizeof(*data->components));
if (data->components == NULL && len != 0)
return ENOMEM;
data->components[0] = (*p) / 40;
data->components[1] = (*p) % 40;
--len;
++p;
for (n = 2; len > 0; ++n) {
unsigned u = 0;
do {
--len;
u = u * 128 + (*p++ % 128);
} while (len > 0 && p[-1] & 0x80);
data->components[n] = u;
}
if (p[-1] & 0x80) {
free_oid (data);
return ASN1_OVERRUN;
}
data->length = n;
if (size)
*size = oldlen;
return 0;
}
static void
free_MechType(MechType * data)
{
free_oid(data);
}
