add libhttpd

src/libhttpd/query.c

@@ -0,0 +1,39 @@
+#include <u.h>
+#include <libc.h>
+#include <httpd.h>
+
+/*
+ * parse a search string of the form
+ * tag=val&tag1=val1...
+ */
+HSPairs*
+hparsequery(HConnect *c, char *search)
+{
+	HSPairs *q;
+	char *tag, *val, *s;
+
+	while((s = strchr(search, '?')) != nil)
+		search = s + 1;
+	s = search;
+	while((s = strchr(s, '+')) != nil)
+		*s++ = ' ';
+	q = nil;
+	while(*search){
+		tag = search;
+		while(*search != '='){
+			if(*search == '\0')
+				return q;
+			search++;
+		}
+		*search++ = 0;
+		val = search;
+		while(*search != '&'){
+			if(*search == '\0')
+				return hmkspairs(c, hurlunesc(c, tag), hurlunesc(c, val), q);
+			search++;
+		}
+		*search++ = '\0';
+		q = hmkspairs(c, hurlunesc(c, tag), hurlunesc(c, val), q);
+	}
+	return q;
+}