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The whole program flow chart:
		sws
		||
		||
		\/
		server
		||
		||
		\/
			 <===> cgi    
request	 ===>	http	 ====> filelog
response<===		 <===> magic

sws: 		handles the options
server: 	set up the server
http: 		parse request and send response back
cgi: 		get request from http and return results back to http
filelog:	write logs
sws_define: all methods that will be used by most c files.
magic: 		content-type is determined via magic(5).

/---------------------------------------------------------------------------/

Request Type		Response Type
1. file 			file
2. directory		directory's index.html or file list
3. cgi-dir			cgi results

Directory Hints
1. If dir doesn't contain index.html, return file list
2. If dir begin with "~", first slash is translated into that user's sws directory

/---------------------------------------------------------------------------/

Http version
Http 1.0

/---------------------------------------------------------------------------/

Response Code:
200	 	OK
304		Not Modified
400		Bad Request
403		Forbidden
404		Not Found
500		Internal Server Error
501		Not Implemented

/---------------------------------------------------------------------------/