UDP client and server program

UDP client and server program in which
        i) Client sends a string to the server.
        ii) Server reply with a string.
       
       
       
                                    UDP Client.C

#include <stdio.h>
#include <process.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/type.h>
#include <netinet/in.h>
#include <maloc.h>
#define PORT 7200
Void main()
{
    Char sendline[128], recvline[129];
    Int sockfd, bytesent, byterecv;
    Struct sockaddr_in *serveraddr;
    Serveraddr.sin_len = sizeof(serveraddr);
    Serveraddr.sin_family = AF_INET;
    Serveraddr.sin_port = htonl(PORT);
    Serveraddr.sin_addr = htonl(INADDR_ANY);
    Serveraddr.sin_zero = ’\0’;
    sockfd=socket(AF_INET, sock_DGRAM, 0);
    if(sockfd<0)
    {
    printf("Socket Error");
    exit(0);
    }
    printf("Enter String");
    scanf("%s", sendline);
    bytesent=sendto(sockfd, sendline, strlen(sendline),0,(struct sockaddr_in*)& serveraddr, sizeof(serveraddr));
    if(bytesent<0)
    {
    printf("Sending Error");
    exit(0);
    }
    byterecv=recvfrom(sockfd, recvline, 129, 0, (struct sockaddr_in*) & serveraddr, sizeof(serveraddr));
    if(byterecv<0)
    {
    printf("Receving Error");
    exit(0);
    }
    recvline[strlen(recvline)] = '\0';
    printf("received string %s", recvline);
    close(sockfd);
}



                                                    UDP Server.c



#include <stdio.h>
#include <process.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/type.h>
#include <netinet/in.h>
#include <maloc.h>
#define PORT 7200
Void main()
{
    Char sendline[128], recvline[129];
    int sockfd, bytesent, byterecv, K;
    struct sockaddr_in *serveraddr, *clientaddr;
    serveraddr.sin_len = sizeof(serveraddr);
    serveraddr.sin_port = htonl(PORT);
    serveraddr.sin_family = AF_INET;
    serveraddr.sin_addr= htonl("192.168.0.1");
    serveraddr.sin_zero='\0';
    clientaddr.sin_len=sizeof(clientaddr);
    clientaddr.sin_port = htonl(PORT);
    clientaddr.sin_family = AF_INET;
    clientaddr.sin_addr=htonl("192.168.0.2");
    clientaddr.sin_zero = '\0';
    sockfd=socket(AF_INET, sock_DGRAM, 0);
    if(sockfd < 0)
    {
    printf("Socket Error");
    exit(0);
    }
    K= bind(sockfd,(struct sockaddr_in*)& serveraddr, sizeof(serveraddr));
    if(k<0)
    {
    printf("Bind Error");
    exit(0);
    }
    byterecv= recvfrom(sockfd, recvline, 129, 0, (struct sockaddr_in*)& clientaddr, sizeof(clientaddr));
    if(byterecv<0)
    {
    printf("Receiving Error");
    exit(0);
    }
    recvline[strlen(recvline)] = '\0';
    printf("received string %s", recvline);
    printf("Enter String");
    scanf("%s", sendline);
    bytesent=sentto(sockfd, sendline, strlen(sendline), 0, (struct sockaddr_in*)& clientaddr, sizeof(clientaddr));
    if(bytesent<0)
    {
    printf("Sending Error");
    exit(0);
    }
    close(sockfd);
}