From dbf6dab7b229428fe832cc01156e977612eba02a Mon Sep 17 00:00:00 2001
From: Jeff Connelly <shellreef+git@gmail.com>
Date: Tue, 3 Jun 2008 16:12:39 -0700
Subject: [PATCH] Optionally (disable) warning on replaying a previously sent
 messages.

---
 libotp.c | 2 ++
 libotp.h | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/libotp.c b/libotp.c
index 89da4d3..f7f63e3 100644
--- a/libotp.c
+++ b/libotp.c
@@ -446,8 +446,10 @@ unsigned int otp_decrypt(char *input, char **out)
     msg = unpackage(input);
 
     if (msg->offset < read_offset(msg->pad)) {
+#ifdef WARN_REPLAY
         fprintf(stderr, "** warning: this is an old message! possible replay attack: %ld < %ld\n",
                 msg->offset, read_offset(msg->pad));
+#endif
     }
 
     length = msg->length;
diff --git a/libotp.h b/libotp.h
index 433e6cc..f979dd8 100644
--- a/libotp.h
+++ b/libotp.h
@@ -21,6 +21,9 @@
 #define PAD_NAME_LENGTH         4
 #define MAX_CONFIG_LINE         1024    /* should be enough, >MAX_PATH */
 
+/* Define to get warnings if a message is replayed. */
+/*#define WARN_REPLAY*/
+
 /* One-time pad. */
 typedef struct _PAD {
     char *local_filename;
-- 
2.11.4.GIT