Added FWP_ERROR macro for debugging of errors

diff --git a/fwp/lib/core/fwp_util.h b/fwp/lib/core/fwp_util.h
index dc2b2f7b25420c52173ef7300c10c8c2b9b6e963..9f18a69a4cbcd72d795d1a1330ed83ac64985157 100644 (file)
--- a/fwp/lib/core/fwp_util.h
+++ b/fwp/lib/core/fwp_util.h
@@ -31,10 +31,12 @@ extern const char *ac_to_text[4];
  * debugging function. */
 
 #ifdef DEBUG
-#define FWP_DEBUG(fmt,args...) printf("%s: " fmt, __func__ , ##args)
+#define FWP_DEBUG(fmt,args...) printf("fwp: %s: " fmt, __func__ , ##args)
+#define FWP_ERROR(fmt,args...) fprintf(stderr, "fwp: %s: " fmt, __func__ , ##args)
 
 #else
 #define FWP_DEBUG(fmt,args...)
+#define FWP_ERROR(fmt,args...)
 #endif
 
 #define _fwp_sendto(s, buf, len, flags, to, tolen)\