From a57860a9e9eab9a1925eb0f872ca3364f251c06b Mon Sep 17 00:00:00 2001
From: Eric Wong <bofh@yhbt.net>
Date: Sun, 25 Dec 2022 12:23:50 +0000
Subject: extras/exec_cgi: fix for newer Rack::ContentLength

Rack::ContentLength now unconditionally captures bodies and
doesn't dup the data yield by body#each.  Thus we can't reuse
buffers anymore.
---
 extras/exec_cgi.rb | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'extras')

diff --git a/extras/exec_cgi.rb b/extras/exec_cgi.rb
index 8a1939d..a04087d 100644
--- a/extras/exec_cgi.rb
+++ b/extras/exec_cgi.rb
@@ -34,14 +34,15 @@ class ExecCgi
     def each
       buf = @body_tip
       yield buf unless buf.empty?
+      buf = @body_tip = nil
 
-      case tmp = @rd.read_nonblock(8192, buf, exception: false)
+      case tmp = @rd.read_nonblock(8192, exception: false)
       when :wait_readable
         @rd.wait_readable
       when nil
         break
       else # String
-        yield tmp
+        yield tmp.freeze
       end while true
       self
     ensure
@@ -117,7 +118,7 @@ class ExecCgi
         tmp.clear
       end
       head, body = head.split(/\r?\n\r?\n/, 2)
-      io.body_tip = body
+      io.body_tip = body.freeze
 
       env["HTTP_VERSION"] ||= "HTTP/1.0" # stop Rack::Chunked for HTTP/0.9
 
-- 
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