/*
* Check whether host h is in our local domain,
* defined as sharing the last two components of the domain part,
* or the entire domain part if the local domain has only one component.
* If either name is unqualified (contains no '.'),
* assume that the host is local, as it will be
* interpreted as such.
*/
int
local_domain(char *h)
{
char localhost[MAXHOSTNAMELEN];
char *p1, *p2;
localhost[0] = 0;
(void) gethostname(localhost, sizeof(localhost));
p1 = topdomain(localhost);
p2 = topdomain(h);
if (p1 == NULL || p2 == NULL || !strcasecmp(p1, p2))
return (1);
return (0);
}
int
in_local_domain (char *hostname)
{
char *p = topdomain (hostname, local_dot_count);
return p && strcasecmp (p, local_domain_name) == 0;
}
int
main (int argc, char *argv[])
{
int index;
set_program_name (argv[0]);
/* Parse command line */
iu_argp_init ("rlogind", program_authors);
argp_parse (&argp, argc, argv, 0, &index, NULL);
openlog ("rlogind", LOG_PID | LOG_CONS, LOG_AUTH);
argc -= index;
if (argc > 0)
{
syslog (LOG_ERR, "%d extra arguments", argc);
exit (1);
}
signal (SIGHUP, SIG_IGN);
if (!local_domain_name)
{
char *p = localhost ();
if (!p)
{
syslog (LOG_ERR, "can't determine local hostname");
exit (1);
}
local_dot_count = 2;
local_domain_name = topdomain (p, local_dot_count);
}
else
{
char *p;
local_dot_count = 0;
for (p = local_domain_name; *p; p++)
if (*p == '.')
local_dot_count++;
}
if (mode == MODE_DAEMON)
rlogin_daemon (maxchildren, port);
else
exit (rlogind_mainloop (fileno (stdin), fileno (stdout)));
return 0;
}
