int main(int args, char **argv){
if(args != 4){
printf("USAGE: pop3 [port] [maildir path] [log file]\n");
printf("NOTE: the maildir path must end with an '/'\n");
exit(1);
}
int sockfd, newSockfd;
//Process command line arguments
int c;
for (c = 1; c < args; c++){
if (c == 1){
sockfd = socket_setup(atoi(argv[c]));
}
else if (c == 2){
dir_set_path(argv[c]);
}
else if (c == 3){
log_setUp (argv[c]);
}
}
//Creation of thread
pthread_t thread_id[100];
int c_tnum = 0;
//Listen for new connections and create a new thread for every new
//connection
log_write("Main" ,"POP3 Server Started" , "", "");
while(1){
newSockfd = socket_get_new_connection(sockfd);
int rc;
rc = pthread_create(&thread_id[c_tnum], NULL,
(void *)pop_protocol, (void *)newSockfd);
log_write("Main" ,"New Connection" , "", "");
c_tnum++;
}
}
int main(int args, char **argv){
int portno, sockfd, newsockfd;
char *maildir;
char *logfile;
if(args != 4){
printf("USAGE: pop3 [port] [maildir path] [log file]\n");
printf("NOTE: the maildir path must end with an '/'\n");
exit(1);
}
portno = atoi(argv[1]);
maildir = argv[2];
logfile = argv[3];
//initial setup
log_setUp(logfile);
dir_set_path(maildir);
//we need to initialise our struct of threads
int i;
for(i=0; i<MAX_THREADS; i++)
{
thread_list[i].thread = malloc(sizeof(pthread_t));
thread_list[i].used = 0;
hand_list[i].threadid = i;
hand_list[i].newsocket = 0;
}
//setup our listener socket
sockfd = socket_setup(portno);
log_write("Main", "POP3 Server Started", "", "");
while(1)
{
// fprintf(stderr, "new thread\n");
newsockfd = socket_get_new_connection(sockfd);
//pthread_t *t;
//t = malloc(sizeof(pthread_t));
//we must find a free process.
//this is a very bad linear search for now
i = 0;
while(i<MAX_THREADS)
{
if(thread_list[i].used == 0)
{
fprintf(stderr, "Handing off thread %i\n", i);
thread_list[i].used = 1;
//this is a struct that we handover which contains required info
hand_list[i].newsocket = newsockfd;
hand_list[i].threadid = i;
pthread_create(thread_list[i].thread, NULL, work_function,
&hand_list[i]);
break;
}
i++;
}
//no free connection, close connection
if(i>=MAX_THREADS)
{
socket_write(newsockfd, "\nServer is overcapacity.\nPlease try again later\n\n");
fprintf(stderr, "connection rejected, tubes clogged\n");
close_connection(newsockfd);
}
}
//closes listener socket
close_socket(sockfd);
fprintf(stderr,"DONE!\n");
return 0;
}
