get.c

#include "unistd.h"

/* example from Ch 8, Sec 8.4, Pg 175 */
/* get: read n bytes from position pos */
int get(int fd, long pos, char *buf, int n) {
    if (lseek(fd, pos, 0) >= 0) /* get to pos */
        return read(fd, buf, n);
    else
        return -1;
}