nologin.c revision 126512 
1232950Stheraven/*-
2232950Stheraven * This program is in the public domain.  I couldn't bring myself to
3232950Stheraven * declare Copyright on a variant of Hello World.
4232950Stheraven */
5232950Stheraven
6232950Stheraven#include <sys/cdefs.h>
7232950Stheraven__FBSDID("$FreeBSD: head/usr.sbin/nologin/nologin.c 126117 2004-02-22 10:03:24Z cperciva $");
8232950Stheraven
9232950Stheraven#include <sys/types.h>
10232950Stheraven#include <sys/uio.h>
11232950Stheraven#include <syslog.h>
12232950Stheraven#include <unistd.h>
13232950Stheraven
14232950Stheraven#define	MESSAGE	"This account is currently not available.\n"
15232950Stheraven
16232950Stheravenint
17232950Stheravenmain(int argc, char *argv[])
18232950Stheraven{
19232950Stheraven#ifndef NO_NOLOGIN_LOG
20232950Stheraven	char *user, *tt;
21232950Stheraven
22232950Stheraven	if ((tt = ttyname(0)) == NULL)
23232950Stheraven		tt = "UNKNOWN";
24232950Stheraven	if ((user = getlogin()) == NULL)
25232950Stheraven		user = "UNKNOWN";
26232950Stheraven
27227825Stheraven	openlog("nologin", LOG_CONS, LOG_AUTH);
28227825Stheraven	syslog(LOG_CRIT, "Attempted login by %s on %s", user, tt);
29227825Stheraven	closelog();
30227825Stheraven#endif /* NO_NOLOGIN_LOG */
31227825Stheraven
32227825Stheraven	write(STDOUT_FILENO, MESSAGE, sizeof(MESSAGE) - 1);
33227825Stheraven	_exit(1);
34227825Stheraven}
35227825Stheraven