diff -up cups-1.7b1/cups/http-addr.c.res_init cups-1.7b1/cups/http-addr.c

--- cups-1.7b1/cups/http-addr.c.res_init	2013-03-20 19:14:10.000000000 +0100

+++ cups-1.7b1/cups/http-addr.c	2013-04-19 12:01:36.927512159 +0200

@@ -319,7 +319,8 @@ httpAddrLookup(

     if (error)

     {

-      if (error == EAI_FAIL)

+      if (error == EAI_FAIL || error == EAI_AGAIN || error == EAI_NODATA ||

+          error == EAI_NONAME)

         cg->need_res_init = 1;

       return (httpAddrString(addr, name, namelen));

diff -up cups-1.7b1/cups/http-addrlist.c.res_init cups-1.7b1/cups/http-addrlist.c

--- cups-1.7b1/cups/http-addrlist.c.res_init	2013-04-19 12:01:36.930512119 +0200

+++ cups-1.7b1/cups/http-addrlist.c	2013-04-19 12:03:13.769229554 +0200

@@ -581,7 +581,8 @@ httpAddrGetList(const char *hostname,	/*

     }

     else

     {

-      if (error == EAI_FAIL)

+      if (error == EAI_FAIL || error == EAI_AGAIN || error == EAI_NODATA ||

+          error == EAI_NONAME)

         cg->need_res_init = 1;

       _cupsSetError(IPP_STATUS_ERROR_INTERNAL, gai_strerror(error), 0);