1 files changed, 21 insertions, 0 deletions
diff --git a/debug.c b/debug.c
new file mode 100644
index 0000000..125974a
--- /dev/null
+++ b/debug.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "debug.h"
+#include "options.h"
+#include "output.h"
+
+void
+debug_(int level, char *file, int line, char *func, char *fmt, ...) {
+	char buf[1024];
+	va_list args;
+
+	if (opt_d < level) {
+		return;
+	}
+	va_start(args, fmt);
+	vsnprintf(buf, 1024, fmt, args);
+	va_end(args);
+
+	output_line(NULL, "DEBUG: %s:%d: %s(): %s", file, line, func, buf);
+}