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1.1
date	99.05.02.03.38.11;	author chris;	state Exp;
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1.1
log
@Initial revision
@
text
@#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <unistd.h>
#include <netinet/in.h>
#include <limits.h>
#include <netdb.h>
#include <arpa/inet.h>

char G_PROMPT[]=">";  /*The prompt used*/

struct MESSAGE
{
  char mes1[100];
};

struct sockaddr_in serverAddr;

/*Sets up the connection 
 returns 0 if successfull else -1*/
int con(void); 

/*Fills a user struct with name etc*/
struct MESSAGE* getMessage(void);

/*Connects the user the server, i.e if succ ready to talk */
int send_r(int sockdesc, char* pmessage); /*Send the message pointed out to server*/

int main (void)
{
  int user_error=0,sockdesc = 0;
  struct MESSAGE* pmes;

  /*Set up connection*/  
  if ( (sockdesc = con())==-1) {
       fprintf (stderr, "Failed to connect to Server!\n");
       return -1;
  }
  
  do {
    pmes = getMessage();
    user_error = send_r(sockdesc, pmes->mes1);
  } while ( user_error == 0);

  printf("Server has closed the connection, now exiting.\n");
  return 0; 
}

int con(void)
{
  char ip_address[13]="127.0.0.1";
  int portNumber = 10001;
  int aSocket, errorcode;
  
  aSocket = socket( AF_INET, SOCK_STREAM, 6);
  
  /* Thing required for bind */
  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(portNumber);
  serverAddr.sin_addr.s_addr = inet_addr(ip_address);
  bzero(&(serverAddr.sin_zero),8);
  
  if (errorcode = connect( aSocket, (struct sockaddr *)&serverAddr, sizeof(struct sockaddr )) == 0) 
    return aSocket;
  else
    return -1;
}

int send_r(int sockdesc, char* mes1)
{
  int errorcode, bytesSent, bytesRecv, messageLen;
  char send_buffer[100];
  char recv_buffer[100];
  

  messageLen = sizeof(char[100]);
  
  strcpy(send_buffer,mes1); /*Put the message to be sent in send buffer*/  

  /*Send MESSAGE */
  bytesSent = send(sockdesc, send_buffer, messageLen,0);
  bzero(send_buffer,messageLen);
  
  /*Recive Message*/
  bytesRecv = recv(sockdesc, recv_buffer, messageLen,0);
  printf("%s\n",recv_buffer);
  
  /*Check if Server closes connection, server returns "closed" before closeing.
   Currectly it does that when "exit" is sent to server*/
  if ( strncmp(recv_buffer,"closed",6)==0)
    return -1;
  else
    return 0;
}

struct MESSAGE* getMessage(void)
{

struct MESSAGE MES;
struct MESSAGE* pm = &MES; 
printf("%s",G_PROMPT);
fflush(NULL);
scanf("%s",&MES.mes1);

return pm;
}




















@