[hunchentoot-devel] How to use Sessions ?

[Thibault Langlois]

On Mon, May 12, 2008 at 11:30 PM, Edi Weitz <edi at agharta.de> wrote:
> On Mon, 12 May 2008 21:53:51 +0100, "Thibault Langlois" <tl at di.fc.ul.pt> wrote:
>
>  > A function with declared result type NIL returned:
>  > MD5:UPDATE-MD5-BLOCK.
>  >
>  > [...]
>
> >
>  > I am using huchentoot (0.15.6) chunga (0.3.0) cl-base64 (3.3.2)
>  > cl-fad (0.6.2) and flexi-streams (0.14.0) with sbcl 1.0.9.
>
>  As MD5 is mentioned in your error message, the version of the MD5
>  library you're using might also be of interest.  And, as Cyrus already
>  said, a backtrace would help.
>
>

This was an oportunity to use hunchentoot debugging features :-)

The error comes from a call to HUNCHENTOOT::MD5-HEX ->
MD5:MD5SUM-SEQUENCE -> MD5:UPDATE-MD5-STATE .
I am using this md5.lisp : http://www.pmsf.de/pub/download/MD5/md5.lisp
I get the same error when calling (hunchentoot::md5-hex "foo")

I am using sbcl 1.0.9:

CL-USER>  (lisp-implementation-version)
"1.0.9"
CL-USER> (let ((*print-length* nil)) (print *features*))

(:HUNCHENTOOT :HUNCHENTOOT-SBCL-DEBUG-PRINT-VARIABLE-ALIST
 :URL-REWRITE CFFI-FEATURES:X86 CFFI-FEATURES:UNIX :CFFI :CL-PPCRE
 :CL-FAD :FLEXI-STREAMS :SB-BSD-SOCKETS-ADDRINFO :ASDF :SB-THREAD
 :ANSI-CL :COMMON-LISP :SBCL :UNIX :SB-DOC :SB-TEST :SB-LDB
 :SB-PACKAGE-LOCKS :SB-UNICODE :SB-EVAL :SB-SOURCE-LOCATIONS
 :IEEE-FLOATING-POINT :X86 :ELF :LINUX :LARGEFILE :GENCGC
 :STACK-GROWS-DOWNWARD-NOT-UPWARD :C-STACK-IS-CONTROL-STACK
 :COMPARE-AND-SWAP-VOP :UNWIND-TO-FRAME-AND-CALL-VOP
 :STACK-ALLOCATABLE-CLOSURES :ALIEN-CALLBACKS :LINKAGE-TABLE
 :OS-PROVIDES-DLOPEN :OS-PROVIDES-DLADDR :OS-PROVIDES-PUTWC)

Googling I found someone that met a similar situation back in 2004
using sbcl 0.8.14 and tbnl :-/

Does anyone have a similar setup (versions of sbcl and hunchentoot)
and get the same error [just do (hunchentoot::md5-hex "foo") for
checking] ?

The problem may be caused by the fact that I am using sb-unicode as
indicated in http://www.cliki.net/MD5.

The problem can be fixed using sb-md5 instead but I not sure it is the
right thing to do.

-- 
Thibault Langlois
FCUL / DI