List control emails do not include customheaders, and can lead to RBL issues
for forged senders.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>

diff -Nuar --exclude '*~' mlmmj-1.2.19.0.orig/src/mlmmj-process.c mlmmj-1.2.19.0/src/mlmmj-process.c
--- mlmmj-1.2.19.0.orig/src/mlmmj-process.c	2014-03-23 17:57:24.000000000 -0700
+++ mlmmj-1.2.19.0/src/mlmmj-process.c	2016-05-04 13:50:26.034174788 -0700
@@ -702,8 +702,19 @@
 						    "output mail file");
 				exit(EXIT_FAILURE);
 			}
-			if(do_all_the_voodoo_here(rawmailfd, donemailfd, -1,
-					-1, delheaders,
+			/* hdrfd is checked in do_all_the_voodoo_here(), because the
+			 * customheaders file might not exist */
+			headerfilename = concatstr(2, listdir, "/control/customheaders");
+			hdrfd = open(headerfilename, O_RDONLY);
+			myfree(headerfilename);
+
+			/* footfd is checked in do_all_the_voodoo_here(), see above */
+			footerfilename = concatstr(2, listdir, "/control/footer");
+			footfd = open(footerfilename, O_RDONLY);
+			myfree(footerfilename);
+
+			if(do_all_the_voodoo_here(rawmailfd, donemailfd, hdrfd,
+					footfd, delheaders,
 					NULL, &allheaders, NULL) < 0) {
 				log_error(LOG_ARGS, "do_all_the_voodoo_here");
 				exit(EXIT_FAILURE);