#include <alef.h>#include <bio.h>#include "httpd.h" Biobuf	bin; voidmain(int argc, byte **argv){	byte *meth, *vers, *uri, *search; 	(meth, vers, uri, search) = init(argc, argv);	bin.init(0, OREAD);	send(meth, vers, uri, search);	exits(nil);} voidsend(byte *meth, byte *vers, byte *uri, byte *search){	int c, lastnl; 	if(vers[0] != 0){		okheaders();		bout.print("Date: %D\r\n", time());		bout.print("Content-type: text/html\r\n");		bout.print("\r\n");	}	bout.print("<head><title>Echo</title></head>\r\n");	bout.print("<body><h1>Echo</h1>\r\n");	bout.print("You requested a %s on %s", meth, uri);	if(search)		bout.print(" with search string %s", search);	bout.print(".\n"); 	bout.print("Your client sent the following headers:<p><pre>");	lastnl = 1;	while((c = bin.getc()) != Beof){		if((c&0x7f) == '\r'){			bout.putc(c);			c = bin.getc();			if(c == Beof)				break;		}		bout.putc(c);		if((c&0x7f) == '\n'){			if(lastnl)				break;			lastnl = 1;		}else			lastnl = 0;	} 	bout.print("</pre></body>\n");	exits(nil);}