From fb514ca9e3c7f4f419b697913dc51ae88e21f24b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tam=C3=A1s=20B=C3=A1lint=20Misius?= <lbphacker@gmail.com>
Date: Tue, 22 Jun 2021 20:57:17 +0200
Subject: [PATCH] Return index into range passed to :send rather than bytes
 written

This is what LuaSocket used to do.
---
 src/lua/LuaTCPSocket.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lua/LuaTCPSocket.cpp b/src/lua/LuaTCPSocket.cpp
index 521ed7f89..dbfe4c358 100644
--- a/src/lua/LuaTCPSocket.cpp
+++ b/src/lua/LuaTCPSocket.cpp
@@ -227,7 +227,7 @@ namespace LuaTCPSocket
 				Reset(tcps);
 				lua_pushnil(l);
 				lua_pushliteral(l, "closed");
-				lua_pushinteger(l, writtenTotal);
+				lua_pushinteger(l, writtenTotal + begin);
 				return 3;
 			}
 			if (res == CURLE_AGAIN)
@@ -242,11 +242,11 @@ namespace LuaTCPSocket
 				}
 				lua_pushnil(l);
 				lua_pushliteral(l, "timeout");
-				lua_pushinteger(l, writtenTotal);
+				lua_pushinteger(l, writtenTotal + begin);
 				return 3;
 			}
 		}
-		lua_pushinteger(l, writtenTotal);
+		lua_pushinteger(l, writtenTotal + begin);
 		return 1;
 	}