NAME

httpd, echo − HTTP server

SYNOPSIS

­http/httpd [ ­-n ­namespace ] ­srvname netname netdir

­http/echo [ ­-n ­namespace ] [ ­-d ­domain ] [ ­-r ­remoteip ] ­method version uri [ ­search ]

DESCRIPTION

­Httpd serves the file system described by ­namespace (default /lib/namespace.http), using version 1.0 of the HTTP protocol.  It is usually executed by listen(8) in response to an incoming call on TCP port 80, the HTTP port. ­Srvname is the name of the service invoked, typically tcp80, ­netname is the name of the network, typically TCP, and ­netdir is the network directory for the connection. 

­Httpd 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 file name in /sys/lib/http. 

If the requested URI begins with /magic/server/, ­httpd executes the file /bin/http/server to finish servicing the request.  Method, version, and ­uri are those received on the first line of the request, which is the only line read by ­httpd before executing the magical server. 

­Echo is a trivial server that just returns the method, URI, any search, and the headers sent by the client. 

FILES

­/sys/lib/http content type description file

­/lib/namespace.http
default namespace file for httpd

SOURCE

­/sys/src/cmd/httpd

SEE ALSO

­newns in auth(2), listen(8)

Plan 9  —  April 04, 1995