add libhttpd

src/libhttpd/httpfmt.c

@@ -0,0 +1,30 @@
+#include <u.h>
+#include <libc.h>
+#include <bin.h>
+#include <httpd.h>
+
+int
+httpfmt(Fmt *f)
+{
+	char buf[HMaxWord*2];
+	Rune r;
+	char *t, *s;
+	Htmlesc *l;
+
+	s = va_arg(f->args, char*);
+	for(t = buf; t < buf + sizeof(buf) - 8; ){
+		s += chartorune(&r, s);
+		if(r == 0)
+			break;
+		for(l = htmlesc; l->name != nil; l++)
+			if(l->value == r)
+				break;
+		if(l->name != nil){
+			strcpy(t, l->name);
+			t += strlen(t);
+		}else
+			*t++ = r;
+	}
+	*t = 0;
+	return fmtstrcpy(f, buf);
+}