#include<stdio.h>
#include<stdlib.h>
#include<error.h>
#include<string.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/wait.h>
#include<fcntl.h>
#include<unistd.h>
#define MYPORT 9843
void readstring(int,char *);
int main(int C, char *V[])
{
int listensocket,connectionsocket,retbind;
struct sockaddr_in serveraddress,cliaddr;
socklen_t len;
char buf[100],databuf[1024];
listensocket=socket9AF-INET, SOCK_STREAM, 0);
if(listensocket<0)
{
perror("socket");
exit(1);
}
memset(&serveraddress, 0, sizeof(serveraddress));
serveraddress.sin_family=AF_INET;
serveraddress.sin_port=htons(MYPORT);
serveraddress.sin_addr.s_addr=htonl(INADDR_ANY);
retbind=bind(listensocket,(struct sockaddr*)&serveraddress,
sizeof(serveraddress));

if(-1==retbind)
{
perror("BIND ERROR\n");
exit(1);
}
listen(listensocket,5);

for (;;)
{
printf("Server:I am waiting-----Start of Main Loop\n");
len=sizeof(cliaddr);
connectionsocket=accept(listensocket,
(struct sockaddr*)&cliaddr,&len);
if(connectionsocket<0)
{
if(errno==EINTR)
printf("Interrupted system call ??");
continue;
}
printf("Connection from %s\n",
inet_ntop(AF_INET,&cliaddr.sin_addr,buf,sizeof(buf)));
readstring(connectionsocket, databuf);
close(connectionsocket);
printf("Finished Serving One Client\n");
}
}


void readstring{
int connectionsocket,
char *fname)
{
int pointer=0,n;
int len=0,a,b;
char rev[50],temp[50],temp1[50];
int k,i;
while ((n=read(connectionsocket,(fname + pointer,1024))>0)
{
pointer=pointer+n;
}
fname[pointer]='\0';
printf("enter the string\n");
printf("Server :Received %s \n", fname);
k=strlen(fname);
a=0;
for(i=k-1;i>=0;i--)
temp[a++]=fname[i];
temp[a]='\0';
printf("\nrev is %s\n", temp);
}