lib, irmd, ipcpd: Provide the feature to write to logs

Writing output to log files is now enabled by default. Logs are
written to <INSTALL_PREFIX>/var/log/ouroboros, which is created on
install. There is a log file for the irmd and one per IPCP. To still
get (colored) output on stdout, provide the --stdout switch when
starting the irmd.

Fixes #17

1 files changed, 36 insertions, 0 deletions

diff --git a/src/lib/logs.c b/src/lib/logs.c
new file mode 100644
index 00000000..d86073e4
--- /dev/null
+++ b/src/lib/logs.c
@@ -0,0 +1,36 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Logging facilities
+ *
+ *    Sander Vrijders <sander.vrijders@intec.ugent.be>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define OUROBOROS_PREFIX "logging"
+
+#include <ouroboros/logs.h>
+
+FILE * logfile = NULL;
+
+int set_logfile(char * filename)
+{
+        logfile = fopen(filename, "w");
+        if (logfile == NULL)
+                return -1;
+
+        return 0;
+}