tcp client server network lab

tcp client server :

Server

#include<unistd.h>

#include<sys/types.h>

#include<netinet/in.h>

#include<string.h>

#include<sys/socket.h>

int main()

{

        int sd,nsd,i=0,port=7996;

        unsigned int t;

        char content[30];

        struct sockaddr_in ser,cli;

         if((sd=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==-1)

        {

                printf("Error:Socket creation in server\n");

                return 0;

        }

        bzero((char *)&ser,sizeof(ser));

                        printf("Socket was created\n");

        printf("The port address is %d\n",port);

        ser.sin_family=AF_INET;

        ser.sin_port=htons(port);

        ser.sin_addr.s_addr=inet_addr("192.168.0.200");

        if(bind(sd,(struct sockaddr *)&ser,sizeof(ser))==-1)

        {

             printf("Error : Binding problem port busy");

             return (0);

        }

        listen(sd,1);

        printf("\t\tServer\n");

        t=sizeof(cli);

        nsd=accept(sd,(struct sockaddr *)&cli,&t);

        if(nsd==-1)

        {

                printf("Error in accepting the sever");

                return 0;

        }

        printf("client accepted\n");

        while(1)

        {

       recv(nsd,content,50,0);

 puts(content);

 gets(content);

 send(nsd,content,10,0);

 printf("%c",content[i]);

 if(content[i]=='*')

         break;

 

        }

close(nsd);

close(sd);

return 0;

}

Server o/p:

The port address is 7996

                                                Server

client accepted

5

6

6

*

[cs2910007@localhost netlab]$

Client

#include<stdio.h>

#include<unistd.h>

#include<sys/types.h>

#include<netinet/in.h>

#include<string.h>

#include<sys/socket.h>

int main()

{

       int sd,i=0,port=7996;

        char content[30]="\0";

        struct sockaddr_in ser;

                        printf("Client side\n");

        if((sd=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==-1)

        {

                printf("Error with the Socket creation in server\n");

                return 0;

        }

        bzero((char *)&ser,sizeof(ser));

        printf("The port address is with number %d\n",port);

        ser.sin_family=AF_INET;

        ser.sin_port=htons(port);

        ser.sin_addr.s_addr=inet_addr("192.168.0.200");

        if(connect(sd,(struct sockaddr *)&ser,sizeof(ser))==-1)

        {

             printf("Error in connecting port busy");

             return 0;

        }

        printf("This is client");

        printf("Enter any data :\n");

        while(1)

        {

                gets(content);

                send(sd,content,10,0);

                recv(sd,content,10,0);

                puts(content);

                if(content[i]=='*')

                        break;

                                                

        }

        close(sd);

        return 0;

  }

Client o/p:

[cs2910007@localhost netlab]$ ./a.out

Client side

The port address is with number 7996

This is clientEnter any data :

5

6

9

*

[cs2910007@localhost netlab]$