Hello,
I believe that I found a complete solution:
What introduced the bug, is that httpAddrPort() from http-addr.c now
returns 0 in the case when connection type is AF_UNIX. That differs from
the cups version in jessie, where httpAddrPort returned 631 in that
case. As in my opinion, it makes sense to return 0 as port number in an
AF_UNIX connection, I did not change http-addr.c, but request.c so that
the port comparison is only relevant if the connection type is not
AF_UNIX.
Patch is attached.
Regards
Christoph
Description: Do not compare port numbers when using UNIX socket
Author: Christoph Pleger <ple...@irb.cs.tu-dortmund.de>
Bug-Debian: https://bugs.debian.org/868316
Last-Update: 2017-08-28
Index: cups-2.2.1/cups/request.c
===================================================================
--- cups-2.2.1.orig/cups/request.c 2017-08-28 14:25:03.000000000 +0200
+++ cups-2.2.1/cups/request.c 2017-08-28 14:32:47.164118338 +0200
@@ -996,7 +996,7 @@
*/
if (strcmp(cg->http->hostname, cg->server) ||
- cg->ipp_port != httpAddrPort(cg->http->hostaddr) ||
+ ((cg->http->hostaddr->addr.sa_family != AF_UNIX) && (cg->ipp_port != httpAddrPort(cg->http->hostaddr))) ||
(cg->http->encryption != cg->encryption &&
cg->http->encryption == HTTP_ENCRYPTION_NEVER))
{
