/*
 * SIPB service monitor: status report
 *
 * Nickolai Zeldovich <kolya@MIT.EDU>
 * February 2002
 */

#include <async.h>
#include "sipbmon.h"

static void
status_close (int s, bool ok)
{
  close (s);
}

static void
status_accept (struct sm_service *svc, int fd)
{
  sockaddr_in sin;
  bzero (&sin, sizeof (sin));
  socklen_t sinlen = sizeof (sin);
  int s = accept (fd, (sockaddr *) &sin, &sinlen);
  if (s < 0)
    return;
  make_async (s);

  strbuf st ("%-20s %-5s %-17s %s\n", "Host", "Port", "Service", "Status");
  while (svc) {
    st << strbuf ("%-20s %-5d %-17s %s%s\n",
		  svc->host.cstr (),
		  svc->port,
		  svc->name.cstr (),
		  svc->up ? "up" : "down: ",
		  svc->up ? "" : svc->errmsg.cstr ());
    svc = svc->next;
  }

  net_write (s, st.tosuio (), wrap (&status_close, s));
}

void
status_init (int port, struct sm_service *svc_head)
{
  int fd = inetsocket (SOCK_STREAM, port, INADDR_ANY);
  if (fd < 0)
    fatal ("could not bind TCP port %d: %m\n", port);
  close_on_exec (fd);
  listen (fd, 5);
  fdcb (fd, selread, wrap (&status_accept, svc_head, fd));
}