RHEL-19495 cupsGetJobs fails to connect if poll() gets POLLOUT|POLLHUP in revents

.cups.metadata

@@ -0,0 +1 @@
+23108e0f6ca7d8caa1a6a6224f5322e21ba0a27d cups-2.3.3op2-source.tar.gz

0001-httpAddrConnect2-Check-for-error-if-POLLHUP-is-in-va.patch

@@ -0,0 +1,43 @@
+diff -up cups-2.2.6/cups/http-addrlist.c.cupsgetjobs-pollhup cups-2.2.6/cups/http-addrlist.c
+--- cups-2.2.6/cups/http-addrlist.c.cupsgetjobs-pollhup	2023-12-19 18:25:15.484637450 +0100
++++ cups-2.2.6/cups/http-addrlist.c	2023-12-19 18:28:57.129163387 +0100
+@@ -313,6 +313,39 @@ httpAddrConnect2(
+       {
+ #  ifdef HAVE_POLL
+ 	DEBUG_printf(("pfds[%d].revents=%x\n", i, pfds[i].revents));
++
++#    ifdef _WIN32
++	if (((WSAGetLastError() == WSAEINPROGRESS) && (pfds[i].revents & POLLIN) && (pfds[i].revents & POLLOUT)) ||
++	    ((pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN|POLLOUT))))
++#    else
++	if (((errno == EINPROGRESS) && (pfds[i].revents & POLLIN) && (pfds[i].revents & POLLOUT)) ||
++	    ((pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN|POLLOUT))))
++#    endif /* _WIN32 */
++	{
++	  // Some systems generate POLLIN or POLLOUT together with POLLHUP when doing
++	  // asynchronous connections. The solution seems to be to use getsockopt to
++	  // check the SO_ERROR value and ignore the POLLHUP if there is no error or
++	  // the error is EINPROGRESS.
++
++	  int	    sres,		 /* Return value from getsockopt() - 0, or -1 if error */
++		    serr;		 /* Option SO_ERROR value */
++	  socklen_t slen = sizeof(serr); /* Option value size */
++
++	  sres = getsockopt(fds[i], SOL_SOCKET, SO_ERROR, &serr, &slen);
++
++	  if (sres || serr)
++	  {
++	    pfds[i].revents |= POLLERR;
++#    ifdef DEBUG
++	    DEBUG_printf(("1httpAddrConnect2: getsockopt returned: %d with error: %s", sres, strerror(serr)));
++#    endif
++	  }
++	  else if (pfds[i].revents && (pfds[i].revents & POLLHUP) && (pfds[i].revents & (POLLIN | POLLOUT)))
++	  {
++	    pfds[i].revents &= ~POLLHUP;
++	  }
++	}
++
+ 	if (pfds[i].revents && !(pfds[i].revents & (POLLERR | POLLHUP)))
+ #  else
+ 	if (FD_ISSET(fds[i], &input_set) && !FD_ISSET(fds[i], &error_set))

cups.spec

@@ -130,6 +130,8 @@ Patch36: 0001-Require-authentication-for-CUPS-Get-Document.patch
 Patch37: cups-preservejobfiles-leak.patch
 # RHEL-15308 cupsd fails to open cups-files.conf and the resulting error message is lost
 Patch38: 0001-scheduler-conf.c-Print-to-stderr-if-we-don-t-open-cu.patch
+# RHEL-19495 cupsGetJobs fails to connect if poll() gets POLLOUT|POLLHUP in revents
+Patch39: 0001-httpAddrConnect2-Check-for-error-if-POLLHUP-is-in-va.patch
 
 
 ##### Patches removed because IMHO they aren't no longer needed
@@ -399,6 +401,8 @@ to CUPS daemon. This solution will substitute printer drivers and raw queues in
 %patch37 -p1 -b .preservejobfiles-leak
 # RHEL-15308 cupsd fails to open cups-files.conf and the resulting error message is lost
 %patch38 -p1 -b .log-stderr
+# RHEL-19495 cupsGetJobs fails to connect if poll() gets POLLOUT|POLLHUP in revents
+%patch39 -p1 -b .cupsgetjobs-pollhup
 
 %if %{lspp}
 # LSPP support.
@@ -835,6 +839,7 @@ rm -f %{cups_serverbin}/backend/smb
 %changelog
 * Wed Dec 20 2023 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op2-23
 - RHEL-19205 Recommend new cups-filters subpackages with weak dep for better upgrade exp
+- RHEL-19495 cupsGetJobs fails to connect if poll() gets POLLOUT|POLLHUP in revents
 
 * Thu Nov 02 2023 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op2-22
 - RHEL-14931 cupsd memory leak in cupsdDeleteJob() with "PreserveJobHistory Off"