#include<stdio.h>
#include <fcntl.h>

int main()
{
int fd, sz;
char *c = (char *) calloc(100, sizeof(char));

fd = open("file.c", O_RDONLY);
if (fd < 0) { perror("r1"); exit(1); }

sz = read(fd, c, 10);
printf("called read(% d, c, 10). returned that"
        " %d bytes were read.\n", fd, sz);
c[sz] = '\0';
printf("Those bytes are as follows: % s\n", c);

}