From 4e3ad1ab626377b2457c439a5e10c0272bac9476 Mon Sep 17 00:00:00 2001
From: fffe <fffe@users.noreply.github.com>
Date: Thu, 23 Apr 2026 16:18:40 -0700
Subject: [PATCH] fix off-by-one in SCgiTask::event_read

---
 src/rpc/scgi_task.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rpc/scgi_task.cc b/src/rpc/scgi_task.cc
index 57c34b5a..66a62f3b 100644
--- a/src/rpc/scgi_task.cc
+++ b/src/rpc/scgi_task.cc
@@ -80,7 +80,7 @@ SCgiTask::close() {
 
 void
 SCgiTask::event_read() {
-  int bytes = ::recv(m_fileDesc, m_buffer.data() + m_position, m_buffer.size() - m_position, 0);
+  int bytes = ::recv(m_fileDesc, m_buffer.data() + m_position, m_buffer.size() - m_position - (m_content_length == 0), 0);
 
   if (bytes <= 0) {
     if (bytes == 0 || !(errno == EAGAIN || errno == EINTR))