#include <alef.h>#include <bio.h>#include "httpd.h" /* * parse a search string of the form * tag=val&tag1=val1... */Query*parsequery(byte *search){	Query *q;	byte *tag, *val, *s; 	while((s = strchr(search, '?')) != nil)		search = s + 1;	q = nil;	while(*search){		tag = search;		while(*search != '='){			if(*search == 0)				return q;			search++;		}		*search++ = 0;		val = search;		while(*search != '&'){			if(*search == 0)				return mkquery(tag, val, q);			search++;		}		*search++ = 0;		q = mkquery(tag, val, q);	}	return q;} Query*mkquery(byte *tag, byte *val, Query *next){	Query *q; 	q = malloc(sizeof *q);	q->tag = urlunesc(tag);	q->val = urlunesc(val);	q->next = next;	return q;} voidfreequery(Query *q){	Query *next; 	if(q == nil)		return;	next = q->next;	free(q);	freequery(next);}