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#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <assert.h>
#include "net.h"
#include "global.h"
#include "player.h"
#include "game.h"
/**
* Client side function; connects to specified host:port
* @param[in] host Hostname of server
* @param[in] port Port of server
* @return Socket with open connection to server
*/
int client_connect_server(const char* host, const char* port)
{
assert(host != NULL);
assert(port != NULL);
int status;
int sock;
struct addrinfo hints, *result, *tmp;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC; // IPv4 or IPv6
hints.ai_socktype = SOCK_STREAM; // TCP socket
status = getaddrinfo(host, port, &hints, &result);
if(status != 0)
{
printf("getaddrinfo: %s\n", gai_strerror(status));
exit(EXIT_FAILURE);
}
// connect to first result in linked addrinfo list
for(tmp = result; tmp != NULL; tmp = tmp->ai_next)
{
// create socket
sock = socket(tmp->ai_family, tmp->ai_socktype, tmp->ai_protocol);
if(sock == -1)
continue;
// connect!
if(connect(sock, tmp->ai_addr, tmp->ai_addrlen) != -1)
break; // Success!
close(sock);
}
if(tmp == NULL)
{
printf("failed to connect\n");
exit(EXIT_FAILURE);
}
freeaddrinfo(result);
return sock;
}
bool client_recv_player_list(const uint8_t* payload, const uint8_t data_len)
{
assert(payload != NULL);
data_store* ds = datamodel();
uint32_t pos = 0;
ds->players.count = payload[pos++];
// read usernames from buffer
for(int i=0; i<ds->players.count; i++)
{
uint8_t namelen;
ds->players.players[i].player_id = payload[pos++];
namelen = payload[pos++];
assert(namelen <= MAX_PLAYER_NAME_LENGTH);
strncpy(ds->players.players[i].player_name, (const char*) payload+pos, namelen);
ds->players.players[i].player_name[namelen] = '\0';
pos += namelen;
}
return true;
}
bool client_recv_deal_cards(const uint8_t* payload, const uint8_t payload_len)
{
assert(payload != NULL);
assert(payload_len == MAX_HAND_CARDS); // deal_cards packet have fixed size
data_store* ds = datamodel();
for(int i=0; i<MAX_HAND_CARDS; i++)
ds->hand.cards[i] = payload[i];
return true;
}
bool client_recv_selected_stack(const uint8_t* payload, const uint8_t payload_len)
{
assert(payload != NULL && payload_len == 1);
data_store* ds = datamodel();
ds->stack_index = payload[0];
assert(ds->stack_index <= NUM_TABLE_STACKS);
return true;
}
bool client_recv_initial_stacks(const uint8_t* payload, const uint8_t payload_len)
{
assert(payload != NULL && payload_len == NUM_TABLE_STACKS);
data_store* ds = datamodel();
for(int i=0; i<NUM_TABLE_STACKS; i++)
ds->table_stacks.stacks[i].cards[0] = payload[i];
return true;
}
uint8_t client_send_hello(uint8_t* payload, const uint8_t payload_len)
{
data_store* ds = datamodel();
uint8_t namelen = strlen(ds->nickname);
memcpy(payload, ds->nickname, namelen);
return namelen;
}
uint8_t client_send_selected_card(uint8_t* payload, const uint8_t payload_len)
{
data_store* ds = datamodel();
card c = ds->selected_card;
assert(c >= MIN_CARD && c <= MAX_CARD);
payload[0] = c;
return 1;
}
uint8_t client_send_selected_stack(uint8_t* payload, const uint8_t payload_len)
{
data_store* ds = datamodel();
payload[0] = ds->stack_index;
assert(ds->stack_index <= NUM_TABLE_STACKS);
return 1;
}
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