printf removal

1 files changed, 34 insertions, 0 deletions

diff --git a/src/formatip.c b/src/formatip.c
new file mode 100644
index 0000000..f1a2fd1
--- /dev/null
+++ b/src/formatip.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include "uip.h"
+
+/* easier to copy/paste this tiny function from uip.c
+	than it would be to rebuild all of uIP for use in
+	this program! Also don't want to bloat fujiconf by
+	linking uip.a, even if it would link without a
+	recompile. */
+/*
+u16_t local_htons(u16_t val) {
+	return HTONS(val);
+}
+*/
+
+/* this version's half the size */
+static u16_t local_htons(u16_t val) {
+	__AX__ = val;
+	asm("sta tmp1");
+	asm("txa");
+	asm("ldx tmp1");
+}
+
+static char ipbuf[20];
+
+char *format_ip(uip_ipaddr_t *ip) {
+	u16_t *ipaddr = (u16_t *)ip;
+	sprintf(ipbuf, "%d.%d.%d.%d",
+			local_htons(ipaddr[0]) >> 8,
+			local_htons(ipaddr[0]) & 0xff,
+			local_htons(ipaddr[1]) >> 8,
+			local_htons(ipaddr[1]) & 0xff);
+
+	return ipbuf;
+}