Matrix Multiplication - TCP - Client Server Program - Network-DBMS Lab - C Program

Program:

// Client Program: mc.c

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>

main()
{
 struct sockaddr_in client,server;
 int a[10][10],b[10][10],c[10][10],mt[4];
 int s,sock,r,i,j;
 client.sin_family=AF_INET;
 client.sin_port=3000;
 client.sin_addr.s_addr=inet_addr("127.0.0.1");
 s=socket(AF_INET,SOCK_STREAM,0);
 connect(s,(struct sockaddr *)&client,sizeof(client));
 
 printf("Enter order of matrix 1:");
  scanf("%d %d",&mt[0],&mt[1]);
 printf("Enter order of matrix 2:");
  scanf("%d %d",&mt[2],&mt[3]);
 if(mt[1]!=mt[2])
  printf("Matrices cannot be multiplied");
 else
 {
  send(s,&mt,sizeof(mt),0);
  printf("Enter Elements for matrix 1:\n");
  for(i=0;i<mt[0];i++)
  {
   for(j=0;j<mt[1];j++)
   {
    scanf("%d",&a[i][j]);
   }
  }
  send(s,&a,sizeof(a),0);
  printf("Enter Elements for matrix 2:\n");
  for(i=0;i<mt[2];i++)
  {
   for(j=0;j<mt[3];j++)
   {
    scanf("%d",&b[i][j]);
   }
  } 
  send(s,&b,sizeof(b),0);
  
  recv(s,&c,sizeof(c),0);
  printf("\nResult:\n"); 
  for(i=0;i<mt[0];i++)
  {
   printf("\n");  
   for(j=0;j<mt[3];j++)
   {
    printf(" %d ",c[i][j]);
   }
  } 
 }
 printf("\n"); 
 close(s);
}

Server Program: ms.c

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>

main()
{
 struct sockaddr_in client,server;
 int a[10][10],b[10][10],c[10][10],mt[4];
 int s,sock,r,i,j,sz,k;
 server.sin_family=AF_INET;
 server.sin_port=3000;
 server.sin_addr.s_addr=inet_addr("127.0.0.1");
 s=socket(AF_INET,SOCK_STREAM,0);
 bind(s,(struct sockaddr *)&server,sizeof(server));
 listen(s,1);
 sz=sizeof(server);
 sock=accept(s,(struct sockaddr *)&server,&sz);
 recv(sock,&mt,sizeof(mt),0);
 recv(sock,&a,sizeof(a),0);
 printf("\nReceived Matrix 1\n");
 for(i=0;i<mt[0];i++)
 {
  printf("\n");  
  for(j=0;j<mt[1];j++)
  {
   printf(" %d ",a[i][j]);
  }
 } 
  
 recv(sock,&b,sizeof(b),0);
 printf("\nReceived Matrix 2\n"); 
 for(i=0;i<mt[2];i++)
 {
  printf("\n");  
  for(j=0;j<mt[3];j++)
  {
   printf(" %d ",b[i][j]);
  }
 } 
  
 printf("\nMultiplying........\n"); 
 for(i=0;i<mt[0];i++)
 for(j=0;j<mt[3];j++)
 {
  c[i][j]=0;
  for(k=0;k<mt[1];k++)
   c[i][j]+=a[i][k]*b[k][j];
 }
 printf("\nResult:\n") ; 
 for(i=0;i<mt[0];i++)
 {
  printf("\n");  
  for(j=0;j<mt[3];j++)
  {
   printf(" %d ",c[i][j]);
  }
 }
 printf("\n"); 
 send(sock,&c,sizeof(c),0);
 close(sock);
 close(s); 
}

Output:

Terminal 1: (Server)

nn@linuxmint ~ $ gcc ms.c -o s
nn@linuxmint ~ $ ./s

Received Matrix 1

1 1 
1 1 
Received Matrix 2

2 2
2 2
Multiplying........

Result:

4 4 
4 4 
nn@linuxmint ~ $ 

Terminal 2: (Client)

nn@linuxmint ~ $ gcc mc.c -o c
nn@linuxmint ~ $ ./c
Enter order of matrix 1:2
2
Enter order of matrix 2:2
2
Enter Elements for matrix 1:
1
1
1
1
Enter Elements for matrix 2:
2
2
2
2

Result:

4 4 
4 4
nn@linuxmint ~ $