LINUX : Writing data to file by reading data from KEYBOARD

Open file , Take input from KEYBOARD, write in the file, Display the content of the file and close the file.

/* Program to open the File, read data from the Keyboard and write it in the file.*/
/* User Progam , to be executed in the user space */
/* openfile3.c */
// Author : (Raj)

#include<stdio.h>
#include<fcntl.h>
static int count;
int main()
{
    int fd1,i,len;
    char buffwr[100],buffr[100];
    fd1=open("test1.txt",O_CREAT|O_RDWR,0777);    // Opening of file in read and write mode.
    if(fd1<0)
    {
        printf("File 1 cannot be open. \n");
        return 0;
    }
    else
    {
        printf("File Discripter value of the File 1 is : %d\n",fd1);
        printf("Enter the data to write into the file....\n");
        i=read(0,buffwr,100);
        buffwr[i]='\0';
        len=strlen(buffwr);
        write(fd1,buffwr,len);

        lseek(fd1,0,0);
        i=read(fd1,buffr,100);
        buffr[i]='\0';
        printf("******************************************************\n");
        printf("Entered the data : %s\n",buffr);
               
    }
    close(fd1);
    return 0;
}