#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

// Hartmeyer Vincent


int main (int argc, char *argv[])
{

	if (argc!=2)
	{
		printf("Argument requis : taille du buffer");
		exit(1);
	}

	int taille=atoi(argv[1]);
	int c;

	/*allocation du buffer*/
	unsigned char* buffer= (unsigned char*)malloc(taille*sizeof(unsigned char));
	c=read(0,buffer,taille);
	while(c!=0)
	{
		write(1,buffer,c);
		c=read(0,buffer,taille);
	}
	/*on désalloue*/
	free(buffer);
	return 0;
}