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#include "checksum.h"
#include <string.h>
#include <stdio.h>
#include "../simdebug.h"
checksum_t::checksum_t()
{
sha = NULL;
reset();
}
checksum_t& checksum_t::operator=(const checksum_t& other)
{
assert(other.valid);
valid = true;
delete sha;
sha = NULL;
for(uint8 i=0; i<20; i++) {
message_digest[i] = other.message_digest[i];
}
return *this;
}
checksum_t::checksum_t(const checksum_t &other)
{
assert(other.valid);
valid = true;
sha = NULL;
for(uint8 i=0; i<20; i++) {
message_digest[i] = other.message_digest[i];
}
}
checksum_t::~checksum_t()
{
delete sha;
}
void checksum_t::reset()
{
if (sha == NULL) {
sha = new SHA1();
}
else {
sha->Reset();
}
valid = false;
}
bool checksum_t::operator== (checksum_t &other)
{
if (!valid) {
finish();
}
if (!other.valid) {
other.finish();
}
for(uint8 i=0; i<20; i++) {
if (message_digest[i] != other.message_digest[i]) {
return false;
}
}
return true;
}
bool checksum_t::operator== (const checksum_t &other) const
{
assert(valid && other.valid);
for(uint8 i=0; i<20; i++) {
if (message_digest[i] != other.message_digest[i]) {
return false;
}
}
return true;
}
void checksum_t::input(bool data)
{
assert(sha);
// save bool as (uint8)1
uint8 bool1 = data ? 1 : 0;
input(bool1);
}
void checksum_t::input(uint8 data)
{
assert(sha);
sha->Input((const char*)&data, sizeof(uint8));
}
void checksum_t::input(sint8 data)
{
input((uint8)data);
}
void checksum_t::input(uint16 data)
{
uint16 little_endian = endian(data);
assert(sha);
sha->Input((const char*)&little_endian, sizeof(uint16));
}
void checksum_t::input(sint16 data)
{
input((uint16)data);
}
void checksum_t::input(uint32 data)
{
uint32 little_endian = endian(data);
assert(sha);
sha->Input((const char*)&little_endian, sizeof(uint32));
}
void checksum_t::input(sint32 data)
{
input((uint32)data);
}
void checksum_t::input(const char *data)
{
if (data==NULL) {
data = "null";
}
assert(sha);
sha->Input(data, strlen(data));
}
const char* checksum_t::get_str(const int maxlen) const
{
static char buf[41];
for(uint8 i=0; i<min(maxlen,20); i++) {
sprintf(buf + 2*i, "%2.2X", message_digest[i]);
}
return buf;
}
void checksum_t::calc_checksum(checksum_t *chk) const
{
for(uint8 i=0; i<20; i++) {
chk->input(message_digest[i]);
}
}
void checksum_t::finish()
{
if (!valid) {
assert(sha);
sha->Result(message_digest);
valid = true;
delete sha;
sha = NULL;
}
}
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