1 files changed, 61 insertions, 0 deletions
diff --git a/src/nologin.c b/src/nologin.c
new file mode 100644
index 0000000..b137f9c
--- /dev/null
+++ b/src/nologin.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2004 The FreeBSD Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+#ident "$Id$"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <unistd.h>
+
+int main (void)
+{
+	const char *user, *tty;
+	uid_t uid;
+
+	tty = ttyname (0);
+	if (NULL == tty) {
+		tty = "UNKNOWN";
+	}
+	user = getlogin ();
+	if (NULL == user) {
+		user = "UNKNOWN";
+	}
+
+	char *ssh_origcmd = getenv("SSH_ORIGINAL_COMMAND");
+	uid = getuid (); /* getuid() is always successful */
+	openlog ("nologin", LOG_CONS, LOG_AUTH);
+	syslog (LOG_CRIT, "Attempted login by %s (UID: %d) on %s%s%s",
+	        user, uid, tty,
+		(ssh_origcmd ? " SSH_ORIGINAL_COMMAND=" : ""),
+		(ssh_origcmd ? ssh_origcmd : ""));
+	closelog ();
+
+	printf ("%s", "This account is currently not available.\n");
+
+	return EXIT_FAILURE;
+}