Risistemato tutto il primo esempio di server echo e le funzioni FullWrite e

[gapil.git] / sources / TCP_echod_first.c

diff --git a/sources/TCP_echod_first.c b/sources/TCP_echod_first.c
index 55fd5c6981842e28f47d614c293d07c45170d7ae..b1356fe3f55213daae0bf5109fa2c1fa22c47370 100644 (file)
--- a/sources/TCP_echod_first.c
+++ b/sources/TCP_echod_first.c
@@ -1,4 +1,4 @@
-/* TCP_echod.c
+/* TCP_echod_first.c
  * 
  * Copyright (C) 2001-2003 Simone Piccardi
  * 
@@ -26,7 +26,7 @@
  *
  * Usage: echod -h give all info
  *
- * $Id: TCP_echod_first.c,v 1.1 2003/05/06 14:05:12 piccardi Exp $ 
+ * $Id: TCP_echod_first.c,v 1.2 2003/07/27 23:41:04 piccardi Exp $ 
  *
  ****************************************************************/
 /* 
@@ -40,12 +40,14 @@
 #include <time.h>
 #include <syslog.h>      /* syslog system functions */
 #include <signal.h>      /* signal functions */
+#include <errno.h>       /* error code */
+#include <string.h>      /* error strings */
 #include "Gapil.h"
 
 #define BACKLOG 10
 #define MAXLINE 256
-int demonize  = 1;  /* daemon use option */
-int debugging = 0;  /* debug info printing option */
+int demonize  = 1;  /* daemon use option: default is daemon */
+int debugging = 0;  /* debug info printing option: default is no debug */
 /* Subroutines declaration */
 void usage(void);
 void ServEcho(int sockfd);
@@ -179,14 +181,8 @@ void ServEcho(int sockfd) {
     /* main loop, reading 0 char means client close connection */
     while ( (nread = read(sockfd, buffer, MAXLINE)) != 0) {
        nwrite = FullWrite(sockfd, buffer, nread);
-       if (debugging) {
-           buffer[nread] = 0;
-           snprintf(debug, MAXLINE+20, "Letti %d byte, %s", nread, buffer);
-           if (demonize) {          /* go daemon */
-               syslog(LOG_DEBUG, debug);
-           } else {
-               printf("%s", debug);
-           }
+       if (nwrite) {
+           PrintErr("write error");
        }
     }
     return;
@@ -195,8 +191,8 @@ void ServEcho(int sockfd) {
  * routine to print error on stout or syslog
  */
 void PrintErr(char * error) {
-    if (demonize) {          /* go daemon */
-       syslog(LOG_ERR, error);
+    if (demonize) {                       /* daemon mode */
+       syslog(LOG_ERR, "%s: %m", error); /* log string and error message */
     } else {
        perror(error);
     }