int main(int argc, const char* argv[])
{
struct simple_hash ht;
init_hash(&ht,128);
for (;;)
{
char buf[256];
if (fgets(buf, 256, stdin) == NULL)
break;
char *command = strtok(buf, whitespace);
unsigned int key;
unsigned int value;
if (strcmp(command, "insert") == 0)
{
sscanf(strtok(NULL, whitespace), "%u", &key);
sscanf(strtok(NULL, whitespace), "%u", &value);
hash_insert(&ht,key,value);
}
else if (strcmp(command, "lookup") == 0)
{
sscanf(strtok(NULL, whitespace), "%u", &key);
size_t value;
int result;
result=hash_lookup(&ht,key, &value);
if (result==0)
printf("%u\n", (unsigned int) value);
else
printf("None\n");
}
else if (strcmp(command, "increment") == 0)
{
sscanf(strtok(NULL, whitespace), "%u", &key);
hash_cell_insert(&ht,key)->value++;
}
else if (strcmp(command, "delete") == 0)
{
sscanf(strtok(NULL, whitespace), "%u", &key);
hash_delete(&ht,key);
}
else if (strcmp(command, "clear") == 0)
{
clear_hash(&ht);
}
else if (strcmp(command, "compact") == 0)
{
compact_hash(&ht);
}
fflush(stdout);
}
// Dump entire table
printf("{\n");
if(ht.m_zeroUsed) printf(" %u: %u,\n", ht.m_zeroCell.key, ht.m_zeroCell.value);
for(size_t i=0;i<ht.m_arraySize;i++) if(ht.m_cells[i].key) printf(" %u: %u,\n", ht.m_cells[i].key, ht.m_cells[i].value);
printf("}\n");
end_hash(&ht);
return 0;
}
clear_block (gif_dest_ptr dinfo)
/* Reset compressor and issue a Clear code */
{
clear_hash(dinfo); /* delete all the symbols */
dinfo->free_code = dinfo->ClearCode + 2;
output(dinfo, dinfo->ClearCode); /* inform decoder */
dinfo->n_bits = dinfo->init_bits; /* reset code size */
dinfo->maxcode = MAXCODE(dinfo->n_bits);
}
/// this never shrinks our previously allocated capacity
void init_empty_hash(I capacityPowerOf2) {
if (capacityPowerOf2 < 4) capacityPowerOf2 = 4;
assert(is_power_of_2(capacityPowerOf2));
I const newmask = capacityPowerOf2 - 1;
if (!index_ || mask_ < newmask) {
freehash();
mask_ = newmask;
index_ = (Indices)std::malloc(sizeof(I) * capacityPowerOf2);
setGrowAt(capacityPowerOf2);
}
clear_hash();
}
compress_init (gif_dest_ptr dinfo, int i_bits)
/* Initialize LZW compressor */
{
/* init all the state variables */
dinfo->n_bits = dinfo->init_bits = i_bits;
dinfo->maxcode = MAXCODE(dinfo->n_bits);
dinfo->ClearCode = ((code_int) 1 << (i_bits - 1));
dinfo->EOFCode = dinfo->ClearCode + 1;
dinfo->free_code = dinfo->ClearCode + 2;
dinfo->first_byte = TRUE; /* no waiting symbol yet */
/* init output buffering vars */
dinfo->bytesinpkt = 0;
dinfo->cur_accum = 0;
dinfo->cur_bits = 0;
/* clear hash table */
clear_hash(dinfo);
/* GIF specifies an initial Clear code */
output(dinfo, dinfo->ClearCode);
}
void
handle_packet(const u_char *packet, int length) {
static int n = 0;
static unsigned char initial_hello[] = {
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
uint8 *data;
size_t data_length, rlen;
int i, res;
#if DTLS_VERSION == 0xfeff
#ifndef SHA1_DIGEST_LENGTH
#define SHA1_DIGEST_LENGTH 20
#endif
uint8 hash_buf[16 + SHA1_DIGEST_LENGTH];
#elif DTLS_VERSION == 0xfefd
uint8 hash_buf[DTLS_SHA256_DIGEST_LENGTH];
#endif
#define verify_data_length 12
int is_client;
n++;
SKIP_ETH_HEADER(packet, length);
SKIP_IP_HEADER(packet, length);
/* determine from port if this is a client */
is_client = dtls_uint16_to_int(packet) != 20220;
SKIP_UDP_HEADER(packet, length);
while (length) {
rlen = dtls_uint16_to_int(packet + 11) + sizeof(dtls_record_header_t);
if (!rlen) {
fprintf(stderr, "invalid length!\n");
return;
}
/* skip packet if it is from a different epoch */
if (dtls_uint16_to_int(packet + 3) != epoch[is_client])
goto next;
res = decrypt_verify(is_client, packet, rlen,
&data, &data_length);
if (res <= 0)
goto next;
printf("packet %d (from %s):\n", n, is_client ? "client" : "server");
hexdump(packet, sizeof(dtls_record_header_t));
printf("\n");
hexdump(data, data_length);
printf("\n");
if (packet[0] == 22 && data[0] == 1) { /* ClientHello */
if (memcmp(packet, initial_hello, sizeof(initial_hello)) == 0)
goto next;
memcpy(dtls_kb_client_iv(OTHER_CONFIG), data + 14, 32);
clear_hash();
#if DTLS_VERSION == 0xfeff
hs_hash[0] = dtls_new_hash(HASH_MD5);
hs_hash[1] = dtls_new_hash(HASH_SHA1);
hs_hash[0]->init(hs_hash[0]->data);
hs_hash[1]->init(hs_hash[1]->data);
#elif DTLS_VERSION == 0xfefd
dtls_hash_init(hs_hash[0]);
#endif
}
if (packet[0] == 22 && data[0] == 2) { /* ServerHello */
memcpy(dtls_kb_server_iv(OTHER_CONFIG), data + 14, 32);
/* FIXME: search in ciphers */
OTHER_CONFIG->cipher = TLS_PSK_WITH_AES_128_CCM_8;
}
if (packet[0] == 20 && data[0] == 1) { /* ChangeCipherSpec */
printf("client random: ");
dump(dtls_kb_client_iv(OTHER_CONFIG), 32);
printf("\nserver random: ");
dump(dtls_kb_server_iv(OTHER_CONFIG), 32);
printf("\n");
master_secret_len =
dtls_prf(pre_master_secret, pre_master_len,
(unsigned char *)"master secret", 13,
dtls_kb_client_iv(OTHER_CONFIG), 32,
dtls_kb_server_iv(OTHER_CONFIG), 32,
master_secret, DTLS_MASTER_SECRET_LENGTH);
printf("master_secret:\n ");
for(i = 0; i < master_secret_len; i++)
printf("%02x", master_secret[i]);
printf("\n");
/* create key_block from master_secret
* key_block = PRF(master_secret,
"key expansion" + server_random + client_random) */
dtls_prf(master_secret, master_secret_len,
(unsigned char *)"key expansion", 13,
dtls_kb_server_iv(OTHER_CONFIG), 32,
dtls_kb_client_iv(OTHER_CONFIG), 32,
OTHER_CONFIG->key_block,
dtls_kb_size(OTHER_CONFIG));
OTHER_CONFIG->read_cipher =
dtls_cipher_new(OTHER_CONFIG->cipher,
dtls_kb_client_write_key(OTHER_CONFIG),
dtls_kb_key_size(OTHER_CONFIG));
if (!OTHER_CONFIG->read_cipher) {
warn("cannot create read cipher\n");
} else {
dtls_cipher_set_iv(OTHER_CONFIG->read_cipher,
dtls_kb_client_iv(OTHER_CONFIG),
dtls_kb_iv_size(OTHER_CONFIG));
}
OTHER_CONFIG->write_cipher =
dtls_cipher_new(OTHER_CONFIG->cipher,
dtls_kb_server_write_key(OTHER_CONFIG),
dtls_kb_key_size(OTHER_CONFIG));
if (!OTHER_CONFIG->write_cipher) {
warn("cannot create write cipher\n");
} else {
dtls_cipher_set_iv(OTHER_CONFIG->write_cipher,
dtls_kb_server_iv(OTHER_CONFIG),
dtls_kb_iv_size(OTHER_CONFIG));
}
/* if (is_client) */
SWITCH_CONFIG;
epoch[is_client]++;
printf("key_block:\n");
printf(" client_MAC_secret:\t");
dump(dtls_kb_client_mac_secret(CURRENT_CONFIG),
dtls_kb_mac_secret_size(CURRENT_CONFIG));
printf("\n");
printf(" server_MAC_secret:\t");
dump(dtls_kb_server_mac_secret(CURRENT_CONFIG),
dtls_kb_mac_secret_size(CURRENT_CONFIG));
printf("\n");
printf(" client_write_key:\t");
dump(dtls_kb_client_write_key(CURRENT_CONFIG),
dtls_kb_key_size(CURRENT_CONFIG));
printf("\n");
printf(" server_write_key:\t");
dump(dtls_kb_server_write_key(CURRENT_CONFIG),
dtls_kb_key_size(CURRENT_CONFIG));
printf("\n");
printf(" client_IV:\t\t");
dump(dtls_kb_client_iv(CURRENT_CONFIG),
dtls_kb_iv_size(CURRENT_CONFIG));
printf("\n");
printf(" server_IV:\t\t");
dump(dtls_kb_server_iv(CURRENT_CONFIG),
dtls_kb_iv_size(CURRENT_CONFIG));
printf("\n");
}
if (packet[0] == 22) {
if (data[0] == 20) { /* Finished */
finalize_hash(hash_buf);
/* clear_hash(); */
update_hash((unsigned char *)packet, sizeof(dtls_record_header_t),
data, data_length);
dtls_prf(master_secret, master_secret_len,
is_client
? (unsigned char *)"client finished"
: (unsigned char *)"server finished"
, 15,
hash_buf, sizeof(hash_buf),
NULL, 0,
data + sizeof(dtls_handshake_header_t),
verify_data_length);
printf("verify_data:\n");
dump(data, data_length);
printf("\n");
} else {
update_hash((unsigned char *)packet, sizeof(dtls_record_header_t),
data, data_length);
}
}
if (packet[0] == 23) { /* Application Data */
printf("Application Data:\n");
dump(data, data_length);
printf("\n");
}
next:
length -= rlen;
packet += rlen;
}
}
void clear() {
clear_destroy(vals_);
clear_hash();
}
/*recibimos una posición en formato FEN del GUI cuando editamos y la configuramos para que la entienda el motor*/
void SetBoard(char *string)
{
char c, r;
int sq=0, i=0, j=0;
/*tipo de pieza según la letra que recibimos, ejemplo B es bishop (nosotros la tenemos definida con el número 2*/
int tpieza[26] = {6,2,6,6,6,6,6,6,6,6,5,6,6,1,6,0,4,3,6,6,6,6,6,6,6,6};
int ntb = 0, ntn = 0;
/*número de piezas iniciales*/
peonesblancos = peonesnegros = 0;
caballosblancos = caballosnegros = 0;
alfilesblancos = alfilesnegros = 0;
torresblancas = torresnegras = 0;
damasblancas = damasnegras = 0;
/*Rellenamos la tabla de posiciones y colores*/
while (sq < 64) {
enroque_mascara[sq] = 15;
c = string[i++];
if ('a'<c && c<'z') {
color[sq] = NEGRO;
pieza[sq] = tpieza[c - 'a'];
switch (pieza[sq]) {
case PEON:
peonesnegros++;
break;
case CABALLO:
caballosnegros++;
break;
case ALFIL:
alfilesnegros++;
break;
case TORRE:
ntn++;
torresnegras++;
if (ntn == 1) tn2 = sq;
else if (ntn == 2) tn1 = sq;
break;
case DAMA:
damasnegras++;
break;
case REY:
rn = sq;
break;
}
sq++;
}
else if ('A'<c && c<'Z') {
color[sq] = BLANCO;
pieza[sq] = tpieza[c - 'A'];
switch (pieza[sq]) {
case PEON:
peonesblancos++;
break;
case CABALLO:
caballosblancos++;
break;
case ALFIL:
alfilesblancos++;
break;
case TORRE:
ntb++;
torresblancas++;
if (ntb == 1) tb2 = sq;
else if (ntb == 2) tb1 = sq;
break;
case DAMA:
damasblancas++;
break;
case REY:
rb = sq;
break;
}
sq++;
}
else if ('1'<=c && c<='8') {
for (j=0; j<(c - '0'); j++) {
color[sq+j] = VACIO;
pieza[sq+j] = VACIO;
}
sq += j;
}
}
/*Color para el turno*/
c = string[i++];
if (c == 'w') { turno = BLANCO; }
else if (c == 'b') { turno = NEGRO; }
motor = VACIO;
/*Flag del enroque*/
if (strcmp (variante,"fischerandom") == 0) {
if (strcmp (castling,"HAha") == 0) {
enroque = 0;
c = string[i++];
while ((c >= 'A' && c <= 'H') || (c >= 'a' && c <= 'h')) {
if (c >= 'A' && c <= 'H') {
r = 65 + COLUMNA(rb);
if (c > r) {
enroque = enroque + 1;
tb1 = c - 'A' + 56;
}
if (c < r) {
enroque = enroque + 2;
tb2 = c - 'A' + 56;
}
}
if (c >= 'a' && c <= 'h') {
r = 97 + COLUMNA(rn);
if (c > r) {
enroque = enroque + 4;
tn1 = c - 'a';
}
if (c < r) {
enroque = enroque + 8;
tn2 = c - 'a';
}
}
c = string[i++];
}
}
if (strcmp (castling,"OO") == 0) {
enroque = 0;
c = string[i++];
while (c == 'K' || c == 'Q' || c == 'k' || c == 'q') {
if (c == 'K') {
enroque = enroque + 1;
}
if (c == 'Q') {
enroque = enroque + 2;
}
if (c == 'k') {
enroque = enroque + 4;
}
if (c == 'q') {
enroque = enroque + 8;
}
c = string[i++];
}
}
}
else {
enroque = 0;
c = string[i++];
while (c == 'K' || c == 'Q' || c == 'k' || c == 'q') {
if (c == 'K') {
enroque = enroque + 1;
tb1 = 63;
}
if (c == 'Q') {
enroque = enroque + 2;
tb2 = 56;
}
if (c == 'k') {
enroque = enroque + 4;
tn1 = 7;
}
if (c == 'q') {
enroque = enroque + 8;
tn2 = 0;
}
c = string[i++];
}
}
/*máscaras para los enroques*/
enroque_mascara[rb] = 12;
enroque_mascara[rn] = 3;
enroque_mascara[tb2] = 13;
enroque_mascara[tb1] = 14;
enroque_mascara[tn2] = 7;
enroque_mascara[tn1] = 11;
/*Flag de al paso*/
c = string[i++];
if (c>='a' && c<='h') {
alpaso = (c - 'a');
c = string[i++];
if (c>='1' && c<='8') alpaso += 8*(7-(c - '1'));
else alpaso = -1;
}
else alpaso = -1;
/*no comprobamos en el fen la regla de 50 movimientos o el número de jugadas, la ponemos directamente a 0*/
regla50 = 0; /*inicamos la regla de los 50 movimientos*/
njugadas = 0; /*ponemos a 0 el contador de jugadas*/
fuera_del_libro = 0;
hacer_ponder = FALSO; /*inicialmente tenemos que buscar más que ponderar*/
Calcula_material(); /*calculamos el material en centipeones*/
/*calculamos las distancias entre casillas*/
for (i=0;i<64;i++) {
for (j=0;j<64;j++) {
distancia[i][j] = MAX(abs(FILA(j) - FILA(i)), abs(COLUMNA(j) - COLUMNA(i)));
}
}
clear_hash(); /*borramos las tablas hash*/
poner_hash(); /*calculamos la llave hash para la posición*/
}
