From f32c3b39f10e24440526078e218949a52954f3a1 Mon Sep 17 00:00:00 2001
From: Glenn Strauss <gstrauss@gluelogic.com>
Date: Thu, 11 Sep 2025 22:44:05 -0400
Subject: [PATCH] disable keep-alive if svr sends Connection: close

servers may have a limit on the number of keep-alive requests before
closing a connection and siege should be prepared to handle receiving
Connection: close from server.
---
 src/browser.c | 2 +-
 src/http.c    | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/browser.c b/src/browser.c
index e84fb29..0247e16 100644
--- a/src/browser.c
+++ b/src/browser.c
@@ -583,7 +583,7 @@ __http(BROWSER this, URL U)
   /**
    * close the socket and free memory.
    */
-  if (!my.keepalive) {
+  if (!my.keepalive || !this->conn->connection.reuse) {
     socket_close(this->conn);
   }
 
diff --git a/src/http.c b/src/http.c
index 7284488..3295fe5 100644
--- a/src/http.c
+++ b/src/http.c
@@ -480,6 +480,8 @@ http_read_headers(CONN *C, URL U, FACTS facts)
     }
     if (strncasecmp(line, CONNECTION, strlen(CONNECTION)) == 0) {
       response_set_connection(resp, line);
+      if (response_get_connection(resp) == CLOSE)
+        C->connection.reuse = 0;
     }
     if (strncasecmp(line, "keep-alive: ", 12) == 0) {
       if (response_set_keepalive(resp, line) == TRUE) {