src/main.c


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#include "telnet.h"

int main() {
  struct sockaddr_in addr;
  addr.sin_family = AF_INET;         /* IPv4 */
  addr.sin_port = htons(8000);       /* Port */
  addr.sin_addr.s_addr = INADDR_ANY; /* equals to 0.0.0.0 */
  struct client clients[256];
  struct pollfd fds[256];
  int sfd = establish_connection(addr);
  if (sfd == -1) {
    perror("could not establish connection");
    return 1;
  }

  fds[0].fd = sfd;        /* the listening socket */
  fds[0].events = POLLIN; /* data to read */
  nfds_t nfds = 1; /* 1 = listener alone, grows by 1 per connected client */
  while (1) {
    /* we start the polling here */
    int ready =
        poll(fds, nfds, -1); /* poll to accept many conn simultaneously */
    if (ready == -1) {
      perror("could not run poll");
      return 1;
    }
    if (fds[0].revents & POLLIN) {
      if (handle_new_connection(sfd, fds, &nfds, clients) == -1) {
        perror("could not accept connection");
        continue;
      }
    }
    if (process_message(fds, &nfds, clients) == -1) {
      perror("could not process message");
      continue;
    }
  }
  return 0;
}