From ca2ba434712fd304b30051b43b694775235d3a20 Mon Sep 17 00:00:00 2001
From: chatty
Date: Mon, 15 Nov 1999 13:17:53 +0000
Subject: Cosmetic changes: name of temporary file and comments

---
 src/inivyd.c | 50 +++++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 21 deletions(-)

(limited to 'src/inivyd.c')

diff --git a/src/inivyd.c b/src/inivyd.c
index 7f4a06f..72e6ff0 100644
--- a/src/inivyd.c
+++ b/src/inivyd.c
@@ -17,19 +17,20 @@
  */
 
 /*
- * Le super-demon wixd.
+ * The super-demon (in.ivyd):
  *
- * Il est normalement lance par inetd, avec la chaussette SOCK_DGRAM
- * sur le descripteur 0, ou alors, si le symbole FROMBOOT est defini, il est
- * lance depuis /etc/rc.local.
+ *     It is either launched by inetd with the socket SOCK_DGRAM on file descriptor 0,
+ *     or at boot time with the -boot flag.
  *
- * Le serveur wixd:
- *	Il envoie un paquet connmsg de type MSG_SERVER contenant le numero
- *	de port sur lequel il a connecte sa chaussette.
+ * The daemon (ivyd):
+ *	
+ *     It sends the super-daemon a message connmsg of type MSG_SERVER that contains
+ *     the port number of the socket it connected to.
  *
- * Les clients wix (wx, wxcat, etc ...):
- *	Ils envoient un paquet connmsg de type MSG_CLIENT ou ils demandent
- *	le port.
+ * The clients (ivyecho, ...):
+ *
+ *     They send the super-daemon a message connmsg of type MSG_CLIENT 
+ *     to ask for the port number
  *
  * L'identification de l'emetteur du paquet est le numero d'utilisateur.
  */
@@ -50,22 +51,22 @@
 #include "ivyd.h"
 
 
-const char* const dumpfilename = "/usr/tmp/wixd.db";
+const char* const dumpfilename = "/tmp/in.ivyd.db";
 const int dumpfilemode = 0644;
 const char* const servicename = "ivyd";
 const char* const port_env_variable = "INIVYD_PORT";
 const int default_port = 3006;
 
 /*
- * Definition de la table geree par le super-demon
+ * The association table managed by the super-daemon
  */
 
 typedef struct {
-	short	s_port;	/* le port sur lequel le client communique avec son serveur */
-	short	s_key;	/* le numero de processus du serveur wixd */
+	short	s_port;	/* port number */
+	short	s_key;	/* server id */
 } serverinfo;
 
-#define TABSIZ 64	/* 64 connections simultanees, ca devrait aller */
+#define TABSIZ 64	/* 64 simultaneous servers are allowed */
 serverinfo	si_table [TABSIZ];
 
 serverinfo*
@@ -156,19 +157,23 @@ main (int argc, const char **argv)
 		++argv;
 		--argc;
 	}
-	
+
+	/* special case when launched at boot time (ie. not from inetd) */
+
 	if (boot) {
+		/* in normal mode, we behave as a daemon with no terminal */
 		if (!debug) {
 			int s;
 
+			/* first let's fork... */
 			if (fork ())
 				exit (0);
 	
-			/* on ferme tous les descripteurs */
+			/* ...then let's close all descriptors... */
 			for (s = getdtablesize (); --s >= 0;)
 				close (s);
 
-			/* et on se debarrasse du terminal de controle */
+			/* ... and get rid of our control terminal */
 			if (-1 != open ("/dev/tty", 2)) {
 				(void) ioctl (0, TIOCNOTTY, 0);
 				close (0);
@@ -176,9 +181,7 @@ main (int argc, const char **argv)
 		} else
 			close (0);
 
-		/*
-		 * Ouvre la chaussette et l'attache a bon port
-		 */
+		/* Now it's time to open the socket for requests */
 		if (-1 == socket (AF_INET, SOCK_DGRAM, 0))
 			exit (1);
 		memset (&from, 0, sizeof from);
@@ -189,6 +192,7 @@ main (int argc, const char **argv)
 			exit (1);
 	}		
 
+	/* now we can handle messages and requests */
 	for (;;) {
 		fromlen = sizeof from;
 		if (recvfrom (0, (char *)&msg, sizeof msg, 0, (struct sockaddr *)&from, &fromlen) <= 0) {
@@ -196,13 +200,17 @@ main (int argc, const char **argv)
 				continue;
 			exit (1);
 		}
+
 		si = GetInfo (msg.msg_key);
 		switch (msg.msg_type) {
+
+		/* message from server: we store the information */
 		case MSG_SERVER:
 			si->s_port = msg.msg_port;
 			si->s_key  = msg.msg_key;
 			break;
 
+		/* message from a client: we retrieve and send the information */
 		case MSG_CLIENT:
 			msg.msg_port = si->s_port;
 			msg.msg_type = MSG_REPLY;
-- 
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