#include <unistd.h>
#include <stdio.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
int main(int argc, char** argv) {
	int fd,fsz,i;
	char* file;
	char* name = argv[1];
	fd = open(name, O_RDONLY);
	fsz = lseek(fd,0,SEEK_END);//velikost souboru
	file = mmap(0,fsz, PROT_READ , MAP_SHARED,fd,0);
	if (file == -1) {
		printf("NULA\n");
		printf("errno: %d\n", errno);
		printf("%s\n", strerror(errno));
	}

	for(i = 0;i<fsz;i++) {
		putchar(file[i]);
	}
	munmap(file,fsz);
	close(fd);
	return 0;
}