651 
 652         va_start(ap, oflag);
 653         mode = va_arg(ap, mode_t);
 654         va_end(ap);
 655         return (__openat(fd, path, oflag, mode));
 656 }
 657 
 658 ssize_t
 659 read(int fd, void *buf, size_t size)
 660 {
 661         extern ssize_t __read(int, void *, size_t);
 662         return (__read(fd, buf, size));
 663 }
 664 
 665 ssize_t
 666 write(int fd, const void *buf, size_t size)
 667 {
 668         extern ssize_t __write(int, const void *, size_t);
 669         return (__write(fd, buf, size));
 670 }

 651 
 652         va_start(ap, oflag);
 653         mode = va_arg(ap, mode_t);
 654         va_end(ap);
 655         return (__openat(fd, path, oflag, mode));
 656 }
 657 
 658 ssize_t
 659 read(int fd, void *buf, size_t size)
 660 {
 661         extern ssize_t __read(int, void *, size_t);
 662         return (__read(fd, buf, size));
 663 }
 664 
 665 ssize_t
 666 write(int fd, const void *buf, size_t size)
 667 {
 668         extern ssize_t __write(int, const void *, size_t);
 669         return (__write(fd, buf, size));
 670 }
 671 
 672 /*
 673  * ASCII versions of ctype character classification functions.  This avoids
 674  * pulling in the entire locale framework that is in libc.
 675  */
 676 
 677 int
 678 isdigit(int c)
 679 {
 680         return ((c >= '0' && c <= '9') ? 1 : 0);
 681 }
 682 
 683 int
 684 isupper(int c)
 685 {
 686         return ((c >= 'A' && c <= 'Z') ? 1 : 0);
 687 }
 688 
 689 int
 690 islower(int c)
 691 {
 692         return ((c >= 'a' && c <= 'z') ? 1 : 0);
 693 }
 694 
 695 int
 696 isspace(int c)
 697 {
 698         return (((c == ' ') || (c == '\t') || (c == '\r') || (c == '\n') ||
 699             (c == '\v') || (c == '\f')) ? 1 : 0);
 700 }
 701 
 702 int
 703 isxdigit(int c)
 704 {
 705         return ((isdigit(c) || (c >= 'A' && c <= 'F') ||
 706             (c >= 'a' && c <= 'f')) ? 1 : 0);
 707 }
 708 
 709 int
 710 isalpha(int c)
 711 {
 712         return ((isupper(c) || islower(c)) ? 1 : 0);
 713 }
 714 
 715 int
 716 isalnum(int c)
 717 {
 718         return ((isalpha(c) || isdigit(c)) ? 1 : 0);
 719 }