add libhttpd

src/libhttpd/urlfmt.c

@@ -0,0 +1,26 @@
+#include <u.h>
+#include <libc.h>
+#include <bin.h>
+#include <httpd.h>
+
+int
+hurlfmt(Fmt *f)
+{
+	char buf[HMaxWord*2];
+	Rune r;
+	char *s;
+	int t;
+
+	s = va_arg(f->args, char*);
+	for(t = 0; t < sizeof(buf) - 8; ){
+		s += chartorune(&r, s);
+		if(r == 0)
+			break;
+		if(r <= ' ' || r == '%' || r >= Runeself)
+			t += snprint(&buf[t], sizeof(buf)-t, "%%%2.2x", r);
+		else
+			buf[t++] = r;
+	}
+	buf[t] = 0;
+	return fmtstrcpy(f, buf);
+}