add log-login-syslog

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/log-login-syslog.c b/src/log-login-syslog.c
new file mode 100644
index 0000000..fa781ef
--- /dev/null
+++ b/src/log-login-syslog.c
@@ -0,0 +1,51 @@
+/**
+ * cerberus-logging – Log-in logging extension for cerberus
+ * 
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "common.h"
+#include <syslog.h>
+#include <pwd.h>
+
+
+int do_log(void)
+{
+  static char empty[] = "";
+  struct passwd* pwd;
+  const char* prefix;
+  const char* affix;
+  
+  if (!streq(action, "login"))
+    return 0;
+  
+  if (pwd = getpwnam(username), pwd == NULL)  return -1;
+  
+  openlog("login", LOG_ODELAY, LOG_AUTHPRIV);
+  
+  if (strstr(ttyname, "ttyS") == ttyname)
+    syslog(LOG_INFO, "DIALUP AT %s BY %s", ttyname, username);
+  
+  prefix = pwd->pw_uid ? "" : "ROOT ";
+  affix = hostname ? " FROM " : "";
+  hostname = hostname ? hostname : empty;
+  
+  syslog(pwd->pw_uid ? LOG_INFO : LOG_NOTICE, "%sLOGIN ON %s BY %s%s%s",
+	 prefix, ttyname, username, affix, hostname);
+  
+  closelog();
+  return 0;
+}
+