int main(int argc, char *argv[]) {
struct sockaddr_in saddr, caddr;
int port;
int s;
char line[MAX_LINE_LEN + 1];
int nReceived;
uint caddrLen;
history h;
if(argc != 2) {
fprintf(stderr, "Usage: %s <port>\n", argv[0]);
return 1;
}
port = atoi(argv[1]);
if(port == 0) {
fprintf(stderr, "Invalid port\n");
return 1;
}
saddr.sin_port = htons(port);
saddr.sin_family = AF_INET;
saddr.sin_addr.s_addr = INADDR_ANY;
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(s < 0) {
perror("Impossible to create socket");
return 1;
}
if(bind(s, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) {
perror("Impossible to bind");
return 1;
}
h = historyCreate();
while(1) {
memset(line, 0, MAX_LINE_LEN + 1);
caddrLen = sizeof(caddr);
nReceived = recvfrom(s, line, MAX_LINE_LEN, 0, (struct sockaddr *)&caddr, &caddrLen);
//sleep(4);
printf("Received from %s: %s\n", inet_ntoa(caddr.sin_addr), line);
if(historyCheck(&h, inet_ntoa(caddr.sin_addr)) >= MAX_REQUESTS) {
printf("banned\n");
continue;
}
sendto(s, line, nReceived, 0, (struct sockaddr *)&caddr, caddrLen);
printf("Sent response\n");
}
close(s);
return 0;
}
void searchParmCreate (tSearchParm * s, tDiskParm * d, tSectorId givenSector) {
s->sTrack = givenSector / d->nSectors;
s->sSector = givenSector % d->nSectors;
s->history = historyCreate (d->nSectors, d->nTracks);
s->time = 0;
}