From e6a467814a642185e3aa2fce5dc28807f37b55d9 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Wed, 21 Nov 2018 12:49:39 +0100
Subject: [PATCH] RESP3: addReply*Len() support for RESP2 backward comp.

---
 src/networking.c | 16 ++++++++--------
 src/server.h     |  1 -
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/networking.c b/src/networking.c
index f1ccdaf17..533df2f22 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -562,23 +562,23 @@ void addReplyArrayLen(client *c, long length) {
 }
 
 void addReplyMapLen(client *c, long length) {
-    addReplyAggregateLen(c,length,'%');
+    int prefix = c->resp == 2 ? '*' : '%';
+    addReplyAggregateLen(c,length,prefix);
 }
 
 void addReplySetLen(client *c, long length) {
-    addReplyAggregateLen(c,length,'~');
+    int prefix = c->resp == 2 ? '*' : '~';
+    addReplyAggregateLen(c,length,prefix);
 }
 
 void addReplyAttributeLen(client *c, long length) {
-    addReplyAggregateLen(c,length,'|');
+    int prefix = c->resp == 2 ? '*' : '|';
+    addReplyAggregateLen(c,length,prefix);
 }
 
 void addReplyPushLen(client *c, long length) {
-    addReplyAggregateLen(c,length,'>');
-}
-
-void addReplyHelloLen(client *c, long length) {
-    addReplyAggregateLen(c,length,'@');
+    int prefix = c->resp == 2 ? '*' : '>';
+    addReplyAggregateLen(c,length,prefix);
 }
 
 /* Create the length prefix of a bulk reply, example: $2234 */
diff --git a/src/server.h b/src/server.h
index 603bbd2e3..4b8655006 100644
--- a/src/server.h
+++ b/src/server.h
@@ -1456,7 +1456,6 @@ void addReplyMapLen(client *c, long length);
 void addReplySetLen(client *c, long length);
 void addReplyAttributeLen(client *c, long length);
 void addReplyPushLen(client *c, long length);
-void addReplyHelloLen(client *c, long length);
 void addReplyHelp(client *c, const char **help);
 void addReplySubcommandSyntaxError(client *c);
 void copyClientOutputBuffer(client *dst, client *src);