* added description of ROOTED-FILE-OR-DIRECTORY-HANDLER

* removed chapter 2.6 (Losing on NextStep)

doc/latex/httpd.tex

@@ -325,6 +325,37 @@ and built upon (exported by the \ex{httpd\=basic\=handlers}-structure):
   the file is served to the client.
 \end{defundesc}
 
+\begin{defundesc}{rooted-file-or-directory-handler}{root
+icon-name}{path-handler} 
+
+Dito, but also serve directory indices for directories without
+\ex{index.\ob{}html}. \semvar{icon-name} specifies how to generate
+the links to various decorative icons for the listings.  It can either
+be a procedure which gets passed one of the icon tags listed below and
+is expected to return a link pointing to the icon.  If it is a string,
+that is taken as prefix to which the names of the tags listed below
+are appended.
+
+\begin{tabular}{ll}
+Tag & Icon's file name \\
+\hline
+\ex{directory} & \ex{directory.xbm}\\
+\ex{text} & \ex{text.xbm}\\
+\ex{doc} & \ex{doc.xbm}\\
+\ex{image} & \ex{image.xbm}\\
+\ex{movie} & \ex{movie.xbm}\\
+\ex{audio} & \ex{sound.xbm}\\
+\ex{archive} & \ex{tar.xbm}\\
+\ex{compressed} & \ex{compressed.xbm}\\
+\ex{uu} & \ex{uu.xbm}\\
+\ex{binhex} & \ex{binhex.xbm}\\
+\ex{binary} & \ex{binary.xbm}\\
+\ex{blank} & \ex{blank.xbm}\\
+\ex{back} & \ex{back.xbm}\\
+\ex{\it{}else} & \ex{unknown.xbm}\\
+\end{tabular}
+\end{defundesc}
+          
 \begin{defundesc}{null-path-handler}{path req}{\noreturn}
   This path handler is useful as a default handler. It handles no
   requests, always returning a ``404 Not found'' reply to the client.
@@ -392,49 +423,6 @@ The source files contain a host of support procedures which will be of
 utility to anyone writing a custom path-handler. Read the files first.
 \FIXME{Let us read the files and paste the contents here.}
    
-\subsection{Losing}
-  
-   Be aware of two Unix problems, which may require workarounds:
-\begin{enumerate}
-\item NeXTSTEP's Posix implementation of the \ex{get\ob{}pwnam()}
-  routine will silently tell you that every user has uid 0. This means
-  that if your server, running as root, does a
-  \codex{(set-uid (user->uid "nobody"))}
-  it will essentially do a 
-  \codex{(set-uid 0)}
-  and you will thus still be running as root.  The fix is to manually
-  find out who user nobody is (he's -2 on my system), and to hard-wire
-  this into the server: 
-  \codex{(set-uid -2)} 
-  This problem is NeXTSTEP specific. If you are using not using
-  NeXTSTEP, no problem.
-\item On NeXTSTEP, the \ex{ip\=ad\ob{}dress->\ob{}host\=name}
-  translation routine (in C, \ex{get\ob{}host\ob{}by\ob{}addr()}; in
-  scsh, \ex{(host\=in\ob{}fo addr)}) does not use the DNS system; it
-  goes through NeXT's propietary Netinfo system, and may not return a
-  fully-qualified domain name. For example, on my system, I get
-  ``\ex{ame\ob{}lia\=ear\ob{}hart}'', when I want
-  ``\ex{ame\ob{}lia\=ear\ob{}hart.\ob{}lcs.\ob{}mit.\ob{}edu}''. Since
-  the server uses this name to construct redirection URL's to be sent
-  back to the Web client, they need to be FQDN's.
-  
-  This problem may occur on other OS's; I cannot determine if
-  \ex{get\ob{}host\ob{}by\ob{}addr()} is required to return a FQDN or
-  not. (I would appreciate hearing the answer if you know; my local
-  Internet guru's couldn't tell me.)
-  
-  If your system doesn't give you a complete Internet address when you
-  say
-  \codex{(host-info:name (host-info (system-name)))}
-  then you have this problem. 
-
-  The server has a workaround. There is a procedure exported from the
-  \ex{httpd\=core} package:
-  \codex{(set-my-fqdn name)}
-  Call this to crow-bar the server's idea of its own Internet host
-  name before running the server, and all will be well.
-\end{enumerate}
-
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