371 Nread(int fd, char *buf, size_t count, int prot)  in Nread()  argument
374     register size_t nleft = count;  in Nread()
389     return count - nleft;  in Nread()
398 Nwrite(int fd, const char *buf, size_t count, int prot)  in Nwrite()  argument
401     register size_t nleft = count;  in Nwrite()
412 		return count - nleft;  in Nwrite()
425     return count;  in Nwrite()
446 Nsendfile(int fromfd, int tofd, const char *buf, size_t count)  in Nsendfile()  argument
456     nleft = count;  in Nsendfile()
458 	offset = count - nleft;  in Nsendfile()
482 		if (count == nleft)  in Nsendfile()
484 		return count - nleft;  in Nsendfile()
499     return count;  in Nsendfile()