#include <err.h>
#include <string.h>
#include <sys/types.h>
#include <poll.h>
#include <sys/socket.h>
#include <netinet/in.h>

#include "librez.h"

t_librez_fd		librez_dolisten(t_rez *d_rez, in_addr_t listenaddress, u_int16_t port)
{
  int			ret;
  int			yes;
  int			s;
  struct sockaddr_in	sa;
  int			ifds;
  t_librez_fd		rezid;

  yes = !0;
  sa.sin_len = sizeof(struct sockaddr_in);
  sa.sin_family = AF_INET;
  sa.sin_addr.s_addr = listenaddress;
  sa.sin_port = port;
  memset(&sa.sin_zero, '\0', sizeof(sa.sin_zero));
  s = socket(AF_INET, SOCK_STREAM, 0);
  ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int));
  if (ret == -1)
    err(1, "librez_dolisten");
  ret = bind(s, (const struct sockaddr *)&sa, sizeof(struct sockaddr));
  if (ret == -1)
    err(1, "librez_dolisten");
  ret = listen(s, 5);
  if (ret == -1)
    err(1, "librez_dolisten");
  rezid = librez_fds_add(d_rez, s);
  ifds = d_rez->tl_rezid_2_ifds[rezid];
  memcpy(&d_rez->tsa[ifds], &sa, sizeof(struct sockaddr_in));
  librez_set_func(d_rez, rezid, LIBREZ_POLLACCEPT, LIBREZ_FUNC_DFL);
  librez_set_mask(d_rez, rezid, POLLRDNORM);
  librez_set_mask_listen(d_rez, rezid);
  return (rezid);
}