misc/archive/tcp-client.c

   1 /*
   2  * --- T2-COPYRIGHT-NOTE-BEGIN ---
   3  * This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   4  *
   5  * T2 SDE: misc/archive/tcp-client.c
   6  * Copyright (C) 2004 - 2005 The T2 SDE Project
   7  * Copyright (C) 1998 - 2003 ROCK Linux Project
   8  *
   9  * More information can be found in the files COPYING and README.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; version 2 of the License. A copy of the
  14  * GNU General Public License can be found in the file COPYING.
  15  * --- T2-COPYRIGHT-NOTE-END ---
  16  */
  17
  18 #include <arpa/inet.h>
  19 #include <netinet/in.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <sys/socket.h>
  23 #include <sys/time.h>
  24 #include <sys/types.h>
  25 #include <unistd.h>
  26 #include <termio.h>
  27 #include <stdlib.h>
  28
  29 #define BUFSIZE 1024
  30
  31 int main(int argc, char ** argv) {
  32         struct sockaddr_in servaddr;
  33         struct termio tbuf,tbufsav;
  34         struct timeval tv;
  35         char buf[BUFSIZE];
  36         int sockfd,rc,c;
  37         fd_set rfds;
  38
  39         if (argc != 3) {
  40                 printf("Usage: %s <IP-Address> <TCP-Port>\n",argv[0]);
  41                 return 1;
  42         }
  43
  44         if ( (sockfd=socket(AF_INET,SOCK_STREAM,0)) < 0 )
  45                 { perror("socket"); return 1; }
  46
  47         bzero(&servaddr,sizeof(servaddr));
  48         servaddr.sin_family = AF_INET;
  49         servaddr.sin_port = htons(atoi(argv[2]));
  50         if ( inet_pton(AF_INET,argv[1],&servaddr.sin_addr) <= 0 )
  51                 { printf("Not an IP address: %s\n",argv[1]); return 1; }
  52         if ( connect(sockfd,&servaddr,sizeof(servaddr)) < 0 )
  53                 { perror("connect"); return 1; }
  54
  55         if (ioctl(0,TCGETA, &tbuf) == -1) { perror("ioctl1"); return 1; }
  56         tbufsav=tbuf; tbuf.c_lflag &= ~(ICANON|ECHO);
  57         if (ioctl(0,TCSETAF, &tbuf) == -1) { perror("ioctl2"); return 1; }
  58
  59         do {
  60                 FD_ZERO(&rfds); FD_SET(sockfd,&rfds); FD_SET(0,&rfds);
  61                 tv.tv_sec=1; tv.tv_usec=0;
  62                 rc=select(sockfd+1, &rfds, NULL, NULL, NULL);
  63                 if (rc == -1) { perror("select"); return 1; }
  64                 if (FD_ISSET(sockfd,&rfds)) {
  65                         rc=read(sockfd,buf,BUFSIZE);
  66                         for (c=0; c<rc; c++)
  67                                 if (buf[c]!='\r') write(1,buf+c,1);
  68                 }
  69                 if (FD_ISSET(0,&rfds)) {
  70                         rc=read(0,buf,BUFSIZE);
  71                         for (c=0; c<rc; c+=write(sockfd,buf,rc)) ;
  72                 }
  73         } while (rc > 0);
  74
  75         if (ioctl(0,TCSETAF, &tbufsav) == -1) { perror("ioctl3"); return 1; }
  76         return 0;
  77 }