From 2732f1ee8cf7590c53fd52abc9be0c4ee6a4a3c2 Mon Sep 17 00:00:00 2001
From: sc
Date: Thu, 18 Feb 1999 17:33:32 +0000
Subject: Port registration is now based on bus number. This allows to have one
 server per bus.

---
 src/ivyecho.c | 32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

(limited to 'src/ivyecho.c')

diff --git a/src/ivyecho.c b/src/ivyecho.c
index 468a908..e2ed076 100644
--- a/src/ivyecho.c
+++ b/src/ivyecho.c
@@ -44,7 +44,7 @@ Usage (const char* progname) {
 
 /* Get in touch with super-server and retrieve server's port number */
 int
-GetPort (long addr)
+GetPort (long addr, int key)
 {
 	struct servent *serv;
 	u_short serv_port;
@@ -79,8 +79,12 @@ GetPort (long addr)
 	sin.sin_port = serv_port;
 	sin.sin_addr.s_addr = addr;
 
-	/* build request */	
-	msg.msg_uid = getuid ();
+	/* build request */
+#if 0	
+	msg.msg_key = getuid ();
+#else
+	msg.msg_key = key;
+#endif
 	msg.msg_port = 0;
 	msg.msg_type = MSG_CLIENT;
 
@@ -107,7 +111,7 @@ failed:
 }
 
 int
-ServerOpen (const char *host)
+ServerOpen (const char *host, int key)
 {
 	int sock;
 	static struct sockaddr_in addr;
@@ -137,7 +141,7 @@ ServerOpen (const char *host)
 	/* build address from host addr, asking port number to super-server */
 	memcpy (&addr.sin_addr, hp->h_addr, hp->h_length);
 	addr.sin_family = AF_INET;
-	addr.sin_port = GetPort (addr.sin_addr.s_addr);
+	addr.sin_port = GetPort (addr.sin_addr.s_addr, key);
 	if (! addr.sin_port)
 		return 0;
 
@@ -255,9 +259,17 @@ bufferfull:			/* now we have a full buffer */
 }
 
 
-/*
- * Demande un numero de port au super-serveur de la machine addr
- */
+int
+ExtractPort (const char* bus)
+{
+	int res = 2010;
+	const char* p;
+	if (bus && (p = index (bus, ':'))) {
+		res = atoi (p+1);
+	}
+	return res;
+}
+
 
 
 int
@@ -265,6 +277,7 @@ main (int argc, char** argv)
 {
 	char busbuf [128];
 	const char* bus = 0;
+	int busport;
 	char serverhostbuf [128];
 	const char* serverhost = 0;
 	const struct option options [] = {
@@ -298,9 +311,10 @@ main (int argc, char** argv)
 		}
 	}
 
+	busport = ExtractPort (bus);
 
 	/* Se connecter au serveur.  */
-	servfd = ServerOpen (serverhost);
+	servfd = ServerOpen (serverhost, busport);
 	if (!servfd) {
 		fprintf (stderr, "No server.\n");
 		return 0;
-- 
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