1 files changed, 35 insertions, 0 deletions
diff --git a/debug.c b/debug.c
new file mode 100644
index 0000000..f507f50
--- /dev/null
+++ b/debug.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2007 Stig Venaas <venaas@uninett.no>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdarg.h>
+#include "debug.h"
+
+static uint8_t debug_level = 0;
+
+void debug(uint8_t level, char *format, ...) {
+    extern int errno;
+    
+    if (level >= debug_level) {
+	va_list ap;
+	va_start(ap, format);
+	vfprintf(stderr, format, ap);
+	va_end(ap);
+	if (errno) {
+	    fprintf(stderr, ": ");
+	    perror(NULL);
+	    fprintf(stderr, "errno=%d\n", errno);
+	} else
+	    fprintf(stderr, "\n");
+    }
+    if (level >= DBG_ERR)
+	exit(1);
+}