--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/frontlib/util/logging.c	Sun Oct 28 15:12:37 2012 +0100
@@ -0,0 +1,145 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "logging.h"
+
+#include <time.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+static int flib_loglevel = FLIB_LOGLEVEL_INFO;
+static FILE *flib_logfile = NULL;
+void (*flib_logCallback)(int level, const char *msg) = NULL;
+
+char* flib_format_ip(uint32_t numip) {
+	static char ip[16];
+	snprintf(ip, 16, "%u.%u.%u.%u", (unsigned)(numip>>24), (unsigned)((numip>>16)&0xff), (unsigned)((numip>>8)&0xff), (unsigned)(numip&0xff));
+	return ip;
+}
+
+static inline FILE *flib_log_getfile() {
+	if(flib_logfile==NULL) {
+		return stdout;
+	} else {
+		return flib_logfile;
+	}
+}
+
+static int log_time(char *buffer) {
+    time_t timer;
+    struct tm* tm_info;
+
+    time(&timer);
+    tm_info = localtime(&timer);
+
+    return strftime(buffer, 25, "%Y-%m-%d %H:%M:%S", tm_info);
+}
+
+static char getPrefix(int level) {
+	switch(level) {
+	case FLIB_LOGLEVEL_ERROR: return 'E';
+	case FLIB_LOGLEVEL_WARNING: return 'W';
+	case FLIB_LOGLEVEL_INFO: return 'I';
+	case FLIB_LOGLEVEL_DEBUG: return 'D';
+	default: return '?';
+	}
+}
+
+static void _flib_vflog(const char *func, int level, const char *fmt, va_list args) {
+	if(level >= flib_loglevel) {
+		char logbuffer[1024];
+		logbuffer[0] = getPrefix(level);
+		logbuffer[1] = ' ';
+
+		int pos = 2;
+
+		int len = log_time(logbuffer+pos);
+		if(len>=0) {
+			pos += len;
+			if(pos>sizeof(logbuffer)-1) pos = sizeof(logbuffer)-1;
+		} else {
+			return;
+		}
+
+		len = snprintf(logbuffer+pos, sizeof(logbuffer)-pos, " [%-30s] ", func);
+		if(len>=0) {
+			pos += len;
+			if(pos>sizeof(logbuffer)-1) pos = sizeof(logbuffer)-1;
+		} else {
+			return;
+		}
+
+		len = vsnprintf(logbuffer+pos, sizeof(logbuffer)-pos, fmt, args);
+		if(len>=0) {
+			pos += len;
+			if(pos>sizeof(logbuffer)-1) pos = sizeof(logbuffer)-1;
+		} else {
+			return;
+		}
+
+		if(flib_logCallback != NULL) {
+			flib_logCallback(level, logbuffer);
+		} else {
+			FILE *logfile = flib_log_getfile();
+			fputs(logbuffer, logfile);
+			fputc('\n', logfile);
+			fflush(logfile);
+		}
+	}
+}
+
+void _flib_flog(const char *func, int level, const char *fmt, ...) {
+	va_list argp;
+	va_start(argp, fmt);
+	_flib_vflog(func, level, fmt, argp);
+	va_end(argp);
+}
+
+bool _flib_fassert(const char *func, int level, bool cond, const char *fmt, ...) {
+	if(!cond) {
+		va_list argp;
+		va_start(argp, fmt);
+		_flib_vflog(func, level, fmt, argp);
+		va_end(argp);
+	}
+	return !cond;
+}
+
+int flib_log_getLevel() {
+	return flib_loglevel;
+}
+
+void flib_log_setLevel(int level) {
+	flib_loglevel = level;
+}
+
+void flib_log_setFile(FILE *file) {
+	flib_logfile = file;
+	flib_logCallback = NULL;
+}
+
+bool flib_log_isActive(int level) {
+	return level >= flib_log_getLevel();
+}
+
+void flib_log_setCallback(void (*logCallback)(int level, const char *msg)) {
+	flib_logCallback = logCallback;
+	flib_logfile = NULL;
+}