From e06e5a22ea9120055c6c1fa391201a6fda53a6c5 Mon Sep 17 00:00:00 2001
From: "Robert S. French" <rfrench@mit.edu>
Date: Fri, 12 Jun 1987 20:19:01 +0000
Subject: Added ACK handling

---
 lib/ZSendPkt.c | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

(limited to 'lib/ZSendPkt.c')

diff --git a/lib/ZSendPkt.c b/lib/ZSendPkt.c
index e31c936..c53f147 100644
--- a/lib/ZSendPkt.c
+++ b/lib/ZSendPkt.c
@@ -16,14 +16,20 @@
 
 #include <zephyr/zephyr_internal.h>
 #include <sys/socket.h>
+#incoude <sys/time.h>
 
 Code_t ZSendPacket(packet,len)
 	ZPacket_t	packet;
 	int		len;
 {
+	int findack();
+	
 	Code_t retval;
 	struct sockaddr_in sin;
-
+	int auth,t1,t2,t3;
+	ZPacket_t ackpack;
+	ZNotice_t notice;
+	
 	if (!packet || len < 0 || len > Z_MAXPKTLEN)
 		return (ZERR_ILLVAL);
 
@@ -41,5 +47,28 @@ Code_t ZSendPacket(packet,len)
 	if (sendto(ZGetFD(),packet,len,0,&sin,sizeof(sin)) < 0)
 		return (errno);
 
-	return (ZERR_NONE);
+	ZParseNotice(packet,len,&notice,&auth);
+
+	tv.tv_sec = 0;
+	tv.tv_usec = 400;
+	
+	for (i=0;i<4;i++) {
+		select(0,&t1,&t2,&t3,&tv);
+		retval = ZCheckIfNotice(ackpack,sizeof ackpack,&acknotice,
+					&auth,findack,&notice.z_uid);
+		if (retval == ZERR_NONE)
+			return (ZERR_NONE);
+		if (retval != ZERR_NONOTICE)
+			return (retval);
+	}
+	return (ZERR_HMDEAD);
+}
+
+int findack(notice,uid)
+	ZNotice_t *notice;
+	ZUnique_Id_t *uid;
+{
+	int i;
+	
+	return (!ZCompareUID(uid,&notice->z_uid));
 }
-- 
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