/* run a match of numHands hands of the supplied game
cards are dealt using rng, error conditions like timeouts
are controlled and stored in errorInfo
actions are read/sent to seat p on seatFD[ p ]
if quiet is not zero, only print out errors, warnings, and final value
if logFile is not NULL, print out a single line for each completed
match with the final state and all player values. The values are
printed in player, not seat order.
if transactionFile is not NULL, a transaction log of actions made
is written to the file, and if there is any input left to read on
the stream when gameLoop is called, it will be processed to
initialise the state
returns >=0 if the match finished correctly, -1 on error */
static int gameLoop( const Game *game, char *seatName[ MAX_PLAYERS ],
const uint32_t numHands, const int quiet,
const int fixedSeats, rng_state_t *rng,
ErrorInfo *errorInfo, const int seatFD[ MAX_PLAYERS ],
ReadBuf *readBuf[ MAX_PLAYERS ],
FILE *logFile, FILE *transactionFile )
{
uint32_t handId;
uint8_t seat, p, player0Seat, currentP, currentSeat;
struct timeval t, sendTime, recvTime;
Action action;
MatchState state;
double value[ MAX_PLAYERS ], totalValue[ MAX_PLAYERS ];
/* check version string for each player */
for( seat = 0; seat < game->numPlayers; ++seat ) {
if( checkVersion( seat, readBuf[ seat ] ) < 0 ) {
/* error messages already handled in function */
return -1;
}
}
gettimeofday( &sendTime, NULL );
if( !quiet ) {
fprintf( stderr, "STARTED at %zu.%06zu\n",
sendTime.tv_sec, sendTime.tv_usec );
}
/* start at the first hand */
handId = 0;
if( checkErrorNewHand( game, errorInfo ) < 0 ) {
fprintf( stderr, "ERROR: unexpected game\n" );
return -1;
}
initState( game, handId, &state.state );
dealCards( game, rng, &state.state );
for( seat = 0; seat < game->numPlayers; ++seat ) {
totalValue[ seat ] = 0.0;
}
/* seat 0 is player 0 in first game */
player0Seat = 0;
/* process the transaction file */
if( transactionFile != NULL ) {
if( processTransactionFile( game, fixedSeats, &handId, &player0Seat,
rng, errorInfo, totalValue,
&state, transactionFile ) < 0 ) {
/* error messages already handled in function */
return -1;
}
}
if( handId >= numHands ) {
goto finishedGameLoop;
}
/* play all the (remaining) hands */
while( 1 ) {
/* play the hand */
while( !stateFinished( &state.state ) ) {
/* find the current player */
currentP = currentPlayer( game, &state.state );
/* send state to each player */
for( seat = 0; seat < game->numPlayers; ++seat ) {
state.viewingPlayer = seatToPlayer( game, player0Seat, seat );
if( sendPlayerMessage( game, &state, quiet, seat,
seatFD[ seat ], &t ) < 0 ) {
/* error messages already handled in function */
return -1;
}
/* remember the seat and send time if player is acting */
if( state.viewingPlayer == currentP ) {
sendTime = t;
}
}
/* get action from current player */
state.viewingPlayer = currentP;
currentSeat = playerToSeat( game, player0Seat, currentP );
if( readPlayerResponse( game, &state, quiet, currentSeat, &sendTime,
errorInfo, readBuf[ currentSeat ],
&action, &recvTime ) < 0 ) {
/* error messages already handled in function */
return -1;
}
/* log the transaction */
if( transactionFile != NULL ) {
if( logTransaction( game, &state.state, &action,
&sendTime, &recvTime, transactionFile ) < 0 ) {
/* error messages already handled in function */
return -1;
}
}
/* do the action */
doAction( game, &action, &state.state );
}
/* get values */
for( p = 0; p < game->numPlayers; ++p ) {
value[ p ] = valueOfState( game, &state.state, p );
totalValue[ playerToSeat( game, player0Seat, p ) ] += value[ p ];
}
/* add the game to the log */
if( logFile != NULL ) {
if( addToLogFile( game, &state.state, value, player0Seat,
seatName, logFile ) < 0 ) {
/* error messages already handled in function */
return -1;
}
}
/* send final state to each player */
for( seat = 0; seat < game->numPlayers; ++seat ) {
state.viewingPlayer = seatToPlayer( game, player0Seat, seat );
if( sendPlayerMessage( game, &state, quiet, seat,
seatFD[ seat ], &t ) < 0 ) {
/* error messages already handled in function */
return -1;
}
}
if ( !quiet ) {
if ( handId % 100 == 0) {
for( seat = 0; seat < game->numPlayers; ++seat ) {
fprintf(stderr, "Seconds cumulatively spent in match for seat %i: "
"%i\n", seat,
(int)(errorInfo->usedMatchMicros[ seat ] / 1000000));
}
}
}
/* start a new hand */
if( setUpNewHand( game, fixedSeats, &handId, &player0Seat,
rng, errorInfo, &state.state ) < 0 ) {
/* error messages already handled in function */
return -1;
}
if( handId >= numHands ) {
break;
}
}
finishedGameLoop:
/* print out the final values */
if( !quiet ) {
gettimeofday( &t, NULL );
fprintf( stderr, "FINISHED at %zu.%06zu\n",
sendTime.tv_sec, sendTime.tv_usec );
}
if( printFinalMessage( game, seatName, totalValue, logFile ) < 0 ) {
/* error messages already handled in function */
return -1;
}
return 0;
}
int main(int argc, char *argv[]){
char user[100];
char password[100];
char transaction[2048];
int auth;
int i;
if(argc!=2 && argc!=4){
printf("account password (to setup/report on your account)\n");
printf("account password amount targetAccount (to transfer)\n");
return 0;
}
strncpy(user,getenv("USER"),100); // determine who is running this
/* for auditing purposes */
transaction[0]='\0';
strncat(transaction,user,2048);
strncat(transaction,": ",2048);
for(i=1;i<argc;i++){
strncat(transaction,argv[i],2048);
strncat(transaction," ",2048);
}
strncpy(password,argv[1],99);
password[99]='\0';
auth=authenticate(user, password);
if(argc==2){
if(auth==2){
addUser(user, password);
printf("Your account has:\n");
report(user);
} else if(auth==1){
printf("Your account has:\n");
report(user);
} else {
printf("You have not been authenticated\n");
}
} else if(argc==4){ // perform a transfer to another account
if(auth==1){
int fromAmount, amount, toAmount;
//ISSUE 6: Possible unsafe (negative) amount input
amount=atoi(argv[2]);
fromAmount=getAccount(user);
toAmount=getAccount(argv[3]);
if(toAmount==-1){
printf("account %s does not exist\n",argv[3]);
} else if(fromAmount-amount>0){
printf("Your account had:\n");
report(user);
fromAmount=fromAmount-amount;
//ISSUE 5: Integer Overflow
toAmount=toAmount+amount;
setAccount(user,fromAmount);
setAccount(argv[3],toAmount);
printf("Your account now has:\n");
report(user);
} else {
printf("You do not have sufficient credits.\n");
}
} else {
printf("You have not been authenticated\n");
}
}
/* in any case, log the attempt */
logTransaction(transaction);
return 0;
}