diff -BrauN orig/authbind-1.2.0/helper.c changed/authbind-1.2.0/helper.c
--- orig/authbind-1.2.0/helper.c        1998-08-30 21:52:38.000000000 +0200
+++ changed/authbind-1.2.0/helper.c     2009-08-10 13:46:49.000000000 +0300
@@ -73,7 +73,7 @@
   addr= strtoul(argv[1],&ep,16); if (*ep || addr&~0x0ffffffffUL) badusage();
   port= strtoul(argv[2],&ep,16); if (*ep || port&~0x0ffffUL) badusage();
   hport= htons(port);
-  if (hport >= IPPORT_RESERVED/2) _exit(EPERM);
+  if (hport >= IPPORT_RESERVED) _exit(EPERM);

   if (chdir(CONFIGDIR)) perrorfail("chdir " CONFIGDIR);

diff -BrauN orig/authbind-1.2.0/libauthbind.c changed/authbind-1.2.0/libauthbind.c
--- orig/authbind-1.2.0/libauthbind.c   2004-04-02 21:54:27.000000000 +0300
+++ changed/authbind-1.2.0/libauthbind.c        2009-08-10 13:47:00.000000000 +0300
@@ -153,7 +153,8 @@

   if (addr->sa_family != AF_INET || addrlen != sizeof(struct sockaddr_in) ||
       !geteuid() || ((struct sockaddr_in*)addr)->sin_port == 0 ||
-      ntohs(((struct sockaddr_in*)addr)->sin_port) >= IPPORT_RESERVED/2)
+      ntohs(((struct sockaddr_in*)addr)->sin_port) >= IPPORT_RESERVED
+  )
     return old_bind(fd,addr,addrlen);

   sigfillset(&block);