1 files changed, 40 insertions, 0 deletions
diff --git a/src/log.c b/src/log.c
new file mode 100644
index 0000000..a34c8e8
--- /dev/null
+++ b/src/log.c
@@ -0,0 +1,40 @@
+// Copyright (c) 2023, Marvin Borner <dev@marvinborner.de>
+// SPDX-License-Identifier: MIT
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+#include <log.h>
+
+static int debug_enabled = 0;
+
+void debug(const char *format, ...)
+{
+	if (!debug_enabled)
+		return;
+
+	fprintf(stderr, "[DEBUG] ");
+
+	va_list ap;
+	va_start(ap, format);
+	vfprintf(stderr, format, ap);
+	va_end(ap);
+}
+
+void debug_enable(int enable)
+{
+	debug_enabled = enable;
+}
+
+void fatal(const char *format, ...)
+{
+	fprintf(stderr, "[FATAL] ");
+
+	va_list ap;
+	va_start(ap, format);
+	vfprintf(stderr, format, ap);
+	va_end(ap);
+
+	abort();
+}