#include<sys/mman.h>
#include<stdio.h>
#include<fcntl.h>
#include<unistd.h>
#include<string.h>

int main(){
	int fd = open("file_to_mmap.c", O_RDWR);
	char *file_data = mmap(0, 1024, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);

	puts(file_data);
	
	int sheep_count = 0;
	char *sheep_spot = file_data;
	while(sheep_spot = strstr(sheep_spot, "sheep")){
		sheep_spot[0] = ' ';
		sheep_spot[1] = 'j';
		sheep_count++;
	}
	printf("Found the word sheep %d times\n", sheep_count);

	munmap(file_data, 1024);
	close(fd);
	return 0;
}