#include<stdio.h>

#include<stdlib.h>

#include<unistd.h>

#include<fcntl.h>

#include<string.h>

#include<errno.h>

#define   FILE_NAME  "qas"

#define   MAX_LINE   200  

char* readLine(int);

int main(){

	int fd;

	int lineno = 1;

	char *linebuf = NULL;

	fd = open(FILE_NAME, O_RDONLY);

	if(fd < 0) {

		perror(FILE_NAME);  

		return -1;

	}

	while ((linebuf=readLine(fd)) != NULL ) {

	        printf(" %d: %s",lineno,linebuf);

		lineno++;

		free(linebuf);

	       	}

	return 0;

}

       /* Funtn defntin of readlin() */

char* readLine(int fd) {

       char *buffer;

       buffer = NULL;

       signed int i;

       int n,k = 0;

       buffer = (char*)malloc(1024);

       for(i = 0;(n = read(fd,buffer+i,1)) > 0;i++) {

	      if(buffer[i] == ' ') {

		      k = k+1;

                      if(i == 0) {   // to avoid space in first postn