add libhttpd

src/libhttpd/lower.c

@@ -0,0 +1,19 @@
+#include <u.h>
+#include <libc.h>
+#include <bin.h>
+#include <httpd.h>
+
+char*
+hlower(char *p)
+{
+	char c;
+	char *x;
+
+	if(p == nil)
+		return p;
+
+	for(x = p; c = *x; x++)
+		if(c >= 'A' && c <= 'Z')
+			*x -= 'A' - 'a';
+	return p;
+}