chown.c 651 B

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  1. /* vi: set sw=4 ts=4: */
  2. /*
  3. * chown() for uClibc
  4. *
  5. * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  6. *
  7. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  8. */
  9. #include "syscalls.h"
  10. #include <unistd.h>
  11. #define __NR___syscall_chown __NR_chown
  12. static inline _syscall3(int, __syscall_chown, const char *, path,
  13. __kernel_uid_t, owner, __kernel_gid_t, group);
  14. int chown(const char *path, uid_t owner, gid_t group)
  15. {
  16. if (((owner + 1) > (uid_t) ((__kernel_uid_t) - 1U))
  17. || ((group + 1) > (gid_t) ((__kernel_gid_t) - 1U))) {
  18. __set_errno(EINVAL);
  19. return -1;
  20. }
  21. return (__syscall_chown(path, owner, group));
  22. }