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[gapil.git] / sources / TCP_echod_first.c

diff --git a/sources/TCP_echod_first.c b/sources/TCP_echod_first.c
index bfe826a8c76d7ad61a05ac032390c32cb456d5b4..31e3c16c70a379990b06b17fd11dc398b8a72822 100644 (file)
--- a/sources/TCP_echod_first.c
+++ b/sources/TCP_echod_first.c
@@ -20,29 +20,28 @@
  *
  * Program echod 
  * Elementary TCP server for echo service (port 7)
+ * First version
  *
  * Author: Simone Piccardi
  * Jun. 2001
  *
  * Usage: echod -h give all info
  *
- * $Id: TCP_echod_first.c,v 1.3 2003/12/25 17:31:09 piccardi Exp $ 
- *
  ****************************************************************/
 /* 
  * Include needed headers
  */
-#include <sys/types.h>   /* predefined types */
-#include <unistd.h>      /* include unix standard library */
+#include <sys/types.h>   /* primitive system data types */
+#include <unistd.h>      /* unix standard library */
 #include <arpa/inet.h>   /* IP addresses conversion utiliites */
-#include <sys/socket.h>  /* socket library */
-#include <stdio.h>      /* include standard I/O library */
-#include <time.h>
+#include <sys/socket.h>  /* socket constants, types and functions */
+#include <stdio.h>      /* standard I/O library */
+#include <time.h>        /* date and time constants, types and functions */
 #include <syslog.h>      /* syslog system functions */
 #include <signal.h>      /* signal functions */
-#include <errno.h>       /* error code */
-#include <string.h>      /* error strings */
-#include <stdlib.h>
+#include <errno.h>       /* error definitions and routines */
+#include <string.h>      /* C strings library */
+#include <stdlib.h>      /* C standard library */
 
 #include "Gapil.h"