Fix DNS-SD browsing leak on Windows (Issue #199)

Author: michaelrsweet

CHANGES.md

@@ -44,6 +44,7 @@ v3.0.4 - YYYY-MM-DD
 - Fixed a bug in `cupsJSONExportString` when exporting a child node (Issue #187)
 - Fixed the ECDSA P-256 curve used for JWT and X.509 certificates and signatures
   (Issue #188)
+- Fixed a DNS-SD browsing issue on Windows (Issue #199)
 - Fixed PAM support in `ippeveprinter`.
 - Fixed a typo in the JWT HS verification code.
 - Fixed `ippValidateAttribute` not returning `false` for too-long URIs.

cups/dnssd.c

@@ -422,7 +422,7 @@ cupsDNSSDBrowseNew(
   if (count == 1)
     count ++;
 
-  for (i = 1; i < count; i ++)
+  for (i = 1; i < count && i < _CUPS_DNSSD_MAX; i ++)
   {
     subtype = (const char *)cupsArrayGetElement(tarray, i);
 
@@ -453,6 +453,8 @@ cupsDNSSDBrowseNew(
     }
   }
 
+  browse->num_browsers = i;
+
   cupsArrayDelete(tarray);
 
 #else // HAVE_AVAHI