= httpd, echo, stats: HTTP server == SYNOPSIS *svc/httpd/httpd* [ **-a**__ addr__ ] [ **-c**__ cachesize__ ] [ *-D* ] **svc/httpd/echo**__ meth vers uri search__ **svc/httpd/stats**__ meth vers uri search__  _Httpd_ is a simple HTTP daemon, serving version 1.0 of the HTTPprotocol. It listens for incoming calls on a given _address_ (default:*tcp!*!80*). It serves content rooted at `/services/httpd/root` in its name space. The _httpd_ program supports only the `GET` and `HEAD` methods of the HTTP protocol.The `Content-type` (default `application/octet-stream`) and `Content-encoding`(default `binary`) of a file are determined by looking for suffixes of the filename in */services/http/http.suff*. If the requested URI begins with */magic/*, _httpd_ loads the moduleassociated with the remaining part of the URI. Take care to configurethe name space sensibly. Simple servers _echo_ and _stats_ are provided(see below). _Httpd_ has the following options: **-a**__ address__::  Listen for calls on the given _address_, expressed using the syntax of  _dial_(2).**-c**__ cachesize__::  Set the size of the daemon's cache to _cachesize_ kilobytes. The  default is a five megabyte cache.*-D*::  Debugging information is written to the file  */services/httpd/httpd.debug*. _Echo_ is a trivial server that just returns the method, URI, anysearch, and the headers sent by the client. _Stats_ is an equally simple server that queries the cache and returnsinformation to the user about pages stored in the cache. More complex services can be written to _httpd_'s private interface. Thefile *httpd.m* (in */appl/svc/httpd*) defines constants and adts used by_httpd_. The file *cgi.m* defines the module which is the interface for programs called using the URI */magic/*. == FILES */services/httpd/root*::  Root of the served web content.*/services/httpd/httpd.debug*::  Logfile for debugging information.*/services/httpd/httpd.log*::  _httpd_ logfile.*/services/httpd/httpd.rewrite*::  File to redirect specific URI requests.*/services/httpd/httpd.suff*::  File of recognizable suffixes and their content type. == SOURCE */appl/svc/httpd*