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client.c
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client.c
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#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <time.h>
#include <dirent.h>
#include <assert.h>
#include <signal.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <menu.h>
#include "message.h"
#include "board.h"
#include "game.h"
int main(int argc, char **argv){
int socket_id, id_num, i = 0, x, udp_id, e, w, p, q;
char username[18], buffer[4];
struct message *m = (struct message *)malloc(sizeof(struct message));
struct sockaddr_in sock, udp;
char ** words = (char **)malloc(60 * sizeof(char *));
for(q = 0; q < 60; q++)
words[q] = (char *)malloc(17 * sizeof(char));
//Have user choose a username
//__fpurge(stdin);
printf("Enter a username of 16 characters or fewer: ");
fgets(username, sizeof(username), stdin);
username[16] = '\n';
*(strchr(username, '\n')) = '\0';
printf("\nUsername: %s\n", username);
strncpy(m -> username, username, 16);
umask(0000);
//TCP
//make the server socket for reliable IPv4 traffic
socket_id = socket( AF_INET, SOCK_STREAM, 0);
//set up the server socket struct
//Use IPv4
sock.sin_family = AF_INET;
//Client will connect to address in argv[1], need to translate that IP address to binary
inet_aton( argv[1], &(sock.sin_addr) );
//set the port to listen on, htons converts the port number to network format
sock.sin_port = htons(24611);
//connect to the server
//connect(socket_id, (struct sockaddr *)&sock, sizeof(sock));
// printf("TCP set up on client\n");
//UDP
//make the server socket for reliable IPv4 traffic
udp_id = socket( AF_INET, SOCK_DGRAM, 0);
//set up the server socket struct
//Use IPv4
udp.sin_family = AF_INET;
//Client will connect to address in argv[1], need to translate that IP address to binary
inet_aton( argv[1], &(udp.sin_addr) );
//set the port to listen on, htons converts the port number to network format
udp.sin_port = htons(24612);
//connect to the server
w = connect(udp_id, (struct sockaddr *)&udp, sizeof(udp));
//printf("UDP set up on client: %s\n", argv[1]);
///must do the first message read/write outside of the
//loop due to the select statement
m->type = CONNECT;
e = (int)sendto(udp_id, m, sizeof(struct message), 0, NULL, 0);
//printf("Sent, Sendto returns: %d, connect returns: %d\n", e, w);
usleep(200);
connect(socket_id, (struct sockaddr *)&sock, sizeof(sock));
printf("Connected to server\n");
//get id assigned by server
read(socket_id, m, sizeof(struct message));
if (m -> type == QUIT) {
close(socket_id);
close(udp_id);
free(m);
printf("Server closed");
exit(0);
}
id_num = m -> id_num;
printf("My new id is: %d\n", m->id_num);
//Do client stuff continuously
while(1){
while(1){
//Request games info
m -> type = REQUEST_INFO;
write(udp_id, m, sizeof(struct message));
read(socket_id, m, sizeof(struct message));
if (m -> type == QUIT) {
close(socket_id);
close(udp_id);
free(m);
printf("Server closed");
exit(0);
}
i = 0;
for(q = 0; q < 8; q++)
if(m -> games[1][q] != -1 && m -> games[3][q] >= 0 && m -> games[4][q] >= 0){
printf("Game %d:\n\tBoard Size: %dx%d\n\tPlayers (so far): %d\n\tTime until start: %d hours, %d minutes, %d seconds\n", q, m -> games[1][q], m -> games[1][q], m -> games[0][q], m -> games[2][q], m -> games[3][q], m -> games[4][q]);
i++;
}
//User picks a game, or makes a new game
//fpurge(stdin);
//strcpy(buffer, "");
if(i)
printf("Enter number of game you would like to join (games with 10 players are full)\n");
if(i < 8)
printf("Enter 44 to start a new game with board size 4x4 or 55 to start a new game with board size 5x5\n");
printf("Enter 'r' or 'R' to refresh\nEnter 'q' or 'Q' to quit\n");
fgets(buffer, sizeof(buffer), stdin);
printf("Input is: %s\n", buffer);
if (buffer [0] == 'q' || buffer[0] == 'Q') {
m -> type = QUIT;
write(udp_id, m, sizeof(struct message));
close(socket_id);
close(udp_id);
free(m);
exit(0);
}
if (buffer [0] == 'r' || buffer[0] == 'R')
break;
//*(strchr(buffer, '\n')) = 0;
buffer[2] = '\0';
x = (int)strtol(buffer, (char **)NULL, 10);
printf("Input converted to int is: %d\n", x);
//If user has attempted to enter a game that does not exist, to start a new game when all games are full, or enter a full game, keep prompting for a legal game number
while(x < 0 || ((x >= i) && (x != 44 && x!= 55)) || (((x == 44) || (x == 55)) && i > 8) || (x < i && m -> games[0][x] >= 10)){
//fpurge(stdin);
if(x < i && m -> games[0][x] >= 10)
printf("Illegal choice! You have selected a game that is already full. Please try again.\n");
else
printf("Illegal choice! You have selected an option that does not exist. Please try again.\n");
fgets(buffer, sizeof(buffer), stdin);
if (buffer [0] == 'q' || buffer[0] == 'Q') {
m -> type = QUIT;
write(udp_id, m, sizeof(struct message));
close(socket_id);
close(udp_id);
free(m);
exit(0);
}
if (buffer [0] == 'r' || buffer[0] == 'R')
break;
buffer [2] = '\0';
x = (int)strtol(buffer, (char **)NULL, 10);
}
if (buffer [0] == 'r' || buffer[0] == 'R')
break;
//If the user has selected to start a new game, prompt for the time to start, and fill m accordingly
if(x == 44 || x == 55){
m -> type = REQUEST_NEW_GAME;
m -> games[0][0] = 1;
if(x == 44)
m -> games[1][0] = 4;
else
m -> games[1][0] = 5;
//fpurge(stdin);
printf("Please enter the amount of time in which you would like to begin your game.\nHours: ");
fgets(buffer, sizeof(buffer), stdin);
*(strchr(buffer, '\n')) = '\0';
x = (int)strtol(buffer, NULL, 10);
m -> games[2][0] = x;
//fpurge(stdin);
printf("Minutes: ");
fgets(buffer, sizeof(buffer), stdin);
*(strchr(buffer, '\n')) = '\0';
x = (int)strtol(buffer, NULL, 10);
m -> games[3][0] = x;
//fpurge(stdin);
printf("Seconds: ");
fgets(buffer, sizeof(buffer), stdin);
*(strchr(buffer, '\n')) = '\0';
x = (int)strtol(buffer, NULL, 10);
m -> games[4][0] = x;
}
else{
m -> type = REQUEST_GAME;
m -> game = x;
}
write(udp_id, m, sizeof(struct message));
//Wait to receive game from server
printf("Waiting for game to start\n*Annoying Hold Music*\n");
read(socket_id, m, sizeof(struct message));
if (m -> type == QUIT) {
close(socket_id);
close(udp_id);
free(m);
printf("Server closed\n");
exit(0);
}
//Play game
p = fork();
if(p == 0)
interface(m -> board, words, m -> games[1][m -> game], m -> id_num);
else{
wait(NULL);
//empty word lists for next game
x = 0;
while(strlen(m -> original[x])){
strcpy(m -> original[x], "");
x++;
}
x = 0;
while(strlen(m -> approved[x])){
strcpy(m -> approved[x], "");
x++;
}
x = 0;
while(strlen(m -> overlap[x])){
strcpy(m -> overlap[x], "");
x++;
}
x = 0;
while(strlen(m -> rejected[x])){
strcpy(m -> rejected[x], "");
x++;
}
words = copy_array(m -> id_num);
}
//flush stdin and buffer
fflush(stdin);
strcpy(buffer, "");
//Send word list to server
x = 0;
while(strlen(words[x])){
strcpy(m -> original[x], words[x]);
x++;
}
m -> type = LIST_UP;
write(udp_id, m, sizeof(struct message));
printf("GAME OVER!\nWaiting for results...\n");
//Wait for results
read(socket_id, m, sizeof(struct message));
if (m -> type == QUIT) {
close(socket_id);
close(udp_id);
free(m);
exit(0);
}
printf("Results In\n");
//Display results
printf("\nYour approved words:\n");
x = 0;
while(strlen(m -> approved[x])){
printf("\t%d: %s\n", x + 1, m -> approved [x]);
x++;
}
printf("\nYour rejected words:\n");
x = 0;
while(strlen(m -> rejected[x])){
printf("\t%d: %s\n", x + 1, m -> rejected [x]);
x++;
}
printf("\nYour overlap words:\n");
x = 0;
while(strlen(m -> overlap[x])){
printf("\t%d: %s\n", x + 1, m -> overlap [x]);
x++;
}
printf("\nScores:\n");
x = 0;
while(x < 10 && strlen(m -> players[x])){
printf("\t%s: %d\n", m -> players [x], m -> scores [x]);
x++;
}
printf("\nWinners:\n");
x = 0;
while(x < 10 && strlen(m -> players[x])){
if(m -> scores[x] == m -> scores[0])
printf("\t%s\n", m -> players[x]);
x++;
}
printf("\nLosers:\n");
x--;
p = x;
// printf("Score of x: %d, score of p: %d\n", m -> scores[x], m -> scores[p]);
while(x >= 0 && m -> scores[x] == m -> scores[p]){
printf("\t%s\n", m -> players[x]);
x--;
}
printf("\n");
}
}
close(socket_id);
return 0;
}