From ad6bcc9e00808b7848fd2caca47525a191b24ff1 Mon Sep 17 00:00:00 2001
From: Max Carrara <m.carrara@proxmox.com>
Date: Tue, 2 Apr 2024 16:55:19 +0200
Subject: [PATCH] cephconfig: escape un-escaped comment literals on write

in order to prevent configuration errors or the configuration being
misinterpreted.

Signed-off-by: Max Carrara <m.carrara@proxmox.com>
Tested-by: Friedrich Weber <f.weber@proxmox.com>
---
 src/PVE/CephConfig.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/PVE/CephConfig.pm b/src/PVE/CephConfig.pm
index 845b7d2..0def1f2 100644
--- a/src/PVE/CephConfig.pm
+++ b/src/PVE/CephConfig.pm
@@ -105,6 +105,9 @@ sub write_ceph_config {
 	$cond_write_sec->($re);
     }
 
+    # Escape comment literals that aren't escaped already
+    $out =~ s/(?<!\\)([;#])/\\$1/gm;
+
     return $out;
 }