From: Michael R Sweet <msweet@msweet.org>
Date: Wed, 10 Apr 2024 20:26:38 +0000 (-0400)
Subject: Fix crash when host is NULL.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87535c34923d8ec608f3cdf3aff9e311feac2961;p=thirdparty%2Fcups.git

Fix crash when host is NULL.
---

diff --git a/cups/dnssd.c b/cups/dnssd.c
index 58c50fc056..c097f83786 100644
--- a/cups/dnssd.c
+++ b/cups/dnssd.c
@@ -1082,7 +1082,7 @@ cupsDNSSDServiceAdd(
 
   // Avahi has trouble with hostnames for services that are only available on
   // the loopback interface/localhost...
-  if (service->if_index == CUPS_DNSSD_IF_INDEX_LOCAL || !_cups_strcasecmp(host, "localhost"))
+  if (service->if_index == CUPS_DNSSD_IF_INDEX_LOCAL || (host && !_cups_strcasecmp(host, "localhost")))
     host = NULL;
 
   // Build the string list from the TXT array...