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[gapil.git] / sources / TCP_daytime.c

diff --git a/sources/TCP_daytime.c b/sources/TCP_daytime.c
deleted file mode 100644 (file)
index 4ed7e4f..0000000
--- a/sources/TCP_daytime.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/* TCP_daytime.c
- * 
- * Copyright (C) 2001 Simone Piccardi
- * 
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/****************************************************************
- *
- * Program daytime: 
- * Elementary TCP client for daytime service (port 13)
- *
- * Author: Simone Piccardi
- * Apr. 2001
- *
- * Usage: daytime -h give all info's
- *
- * $Id: TCP_daytime.c,v 1.2 2003/04/29 15:33:39 piccardi Exp $ 
- *
- ****************************************************************/
-/* 
- * 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 */
-
-#define MAXLINE 80
-/* Program begin */
-void usage(void);
-int main(int argc, char *argv[])
-{
-/* 
- * Variables definition  
- */
-    int sock_fd;
-    int i, nread;
-    struct sockaddr_in serv_add;
-    char buffer[MAXLINE];
-    /*
-     * Input section: decode parameters passed in the calling 
-     * Use getopt function
-     */
-    opterr = 0;         /* don't want writing to stderr */
-    while ( (i = getopt(argc, argv, "h")) != -1) {
-       switch (i) {
-       /* 
-        * Handling options 
-        */ 
-       case 'h':  
-           printf("Wrong -h option use\n");
-           usage();
-           return(0);
-           break;
-       case '?':   /* unrecognized options */
-           printf("Unrecognized options -%c\n",optopt);
-           usage();
-       default:    /* should not reached */
-           usage();
-       }
-    }
-    /* ***********************************************************
-     * 
-     *          Options processing completed
-     *
-     *               Main code beginning
-     * 
-     * ***********************************************************/
-    /* create socket */
-    if ( (sock_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
-       perror("Socket creation error");
-       return -1;
-    }
-    /* initialize address */
-    memset((void *) &serv_add, 0, sizeof(serv_add)); /* clear server address */
-    serv_add.sin_family = AF_INET;                   /* address type is INET */
-    serv_add.sin_port = htons(13);                   /* daytime port is 13 */
-    /* build address using inet_pton */
-    if ( (inet_pton(AF_INET, argv[optind], &serv_add.sin_addr)) <= 0) {
-       perror("Address creation error");
-       return -1;
-    }
-    /* extablish connection */
-    if (connect(sock_fd, (struct sockaddr *)&serv_add, sizeof(serv_add)) < 0) {
-       perror("Connection error");
-       return -1;
-    }
-    /* read daytime from server */
-    while ( (nread = read(sock_fd, buffer, MAXLINE)) > 0) {
-       buffer[nread]=0;
-       if (fputs(buffer, stdout) == EOF) {          /* write daytime */
-           perror("fputs error");
-           return -1;
-       }
-    }
-    /* error on read */
-    if (nread < 0) {
-       perror("Read error");
-       return -1;
-    }
-    /* normal exit */
-    return 0;
-}
-/*
- * routine to print usage info and exit
- */
-void usage(void) {
-    printf("Take daytime from a remote host \n");
-    printf("Usage:\n");
-    printf("  daytime [-h] [-v] [host in dotted decimal form] \n");
-    printf("  -v          set verbosity on\n");
-    printf("  -h          print this help\n");
-    exit(1);
-}