IMRSS and rblsmtpd incompatibility, patch

[Keith Owens]

rblsmtpd does not recognise responses from mr-out.imrss.org.  rblsmtpd
expects a TXT response, mr-out returns CNAME.  Trivial patch against
rblsmtpd-0.70-2.src.rpm.

--- txt.c.orig  Wed Aug 26 01:58:22 1998
+++ txt.c       Sun May  2 09:54:15 1999
@@ -73,7 +73,7 @@
     pos += i;
 
     if (end - pos < 11) return -1;
-    if (getshort(pos) == T_TXT) {
+    if (getshort(pos) == T_TXT || getshort(pos) == T_CNAME) {
       i = (unsigned long) pos[10];
       if (pos + 11 + i > end) return -1;
       if (!stralloc_copyb(sa,pos + 11,i)) return -1;