ipmp_read
retval = ipmp_read(statep->st_fd, &result, sizeof (result), &end);
retval = ipmp_read(fd, typep, sizeof (*typep), endtp);
retval = ipmp_read(fd, &tlen, sizeof (tlen), endtp);
(void) ipmp_read(fd, value, *lenp, endtp);
retval = ipmp_read(fd, value, *lenp, endtp);
extern int ipmp_read(int, void *, size_t, const struct timeval *);
retval = ipmp_read(statep->st_fd, &result, sizeof (result), endtp);