*
* Program echod
* Elementary TCP server for echo service (port 7)
- * Third version, use sockbind
+ * Third version
*
* Author: Simone Piccardi
* Jun. 2001
*
* Usage: echod -h give all info
*
- * $Id$
- *
****************************************************************/
/*
* Include needed headers
*/
-#include <sys/types.h> /* predefined types */
-#include <unistd.h> /* include 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/types.h> /* primitive system data types */
+#include <unistd.h> /* unix standard library */
+#include <arpa/inet.h> /* IP addresses conversion utilities */
+#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 <signal.h> /* signal constants, types and functions */
+#include <errno.h> /* error definitions and routines */
+#include <string.h> /* C strings library */
+#include <stdlib.h> /* C standard library */
#include "Gapil.h"
SignalRestart(SIGCHLD, HandSigCHLD); /* restarting handler */
}
/* create and bind socket */
- if ( (list_fd = sockbind(argv[optind], "echo", 6, SOCK_STREAM)) < 0) {
- if (errno) perror("Socket creation error");
+ if ( (list_fd = sockbind(NULL, "echo", 6, SOCK_STREAM)) < 0) {
return 1;
}
/* release privileges and go daemon */