From 873a103fb71d6b7b1993a64535a7fa150317ca3c Mon Sep 17 00:00:00 2001
From: Franklin Wei <frankhwei536@gmail.com>
Date: Sat, 7 Feb 2015 10:08:34 -0500
Subject: refactor stdio

---
 libc/stdio.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'libc/stdio.c')

diff --git a/libc/stdio.c b/libc/stdio.c
index 92fba27..0ef8b0c 100644
--- a/libc/stdio.c
+++ b/libc/stdio.c
@@ -1,20 +1,33 @@
-#include "tty.h"
+#include "log.h"
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 
+static void (*putchar_ptr)(char) = log_putchar;
+static void (*puts_ptr)(const char*) = log_puts;
+
 int putchar(int ch)
 {
-    tty_putchar((char)ch);
+    putchar_ptr((char)ch);
     return 0;
 }
 
 int puts(const char* str)
 {
-    tty_puts(str);
+    puts_ptr(str);
     return 0;
 }
 
+void set_putchar(void (*func)(char))
+{
+    putchar_ptr = func;
+}
+
+void set_puts(void (*func)(const char*))
+{
+    puts_ptr = func;
+}
+
 static char hex_table[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
                               '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
 
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