| /* vi: set sw=4 ts=4: */ |
| /* |
| * fchown() for uClibc |
| * |
| * Copyright (C) 2000-2006 Erik Andersen <andersen@codepoet.org> |
| * |
| * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| */ |
| |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| #include <bits/wordsize.h> |
| |
| #if (__WORDSIZE == 32 && defined(__NR_fchown32)) || __WORDSIZE == 64 |
| # ifdef __NR_fchown32 |
| # undef __NR_fchown |
| # define __NR_fchown __NR_fchown32 |
| # endif |
| |
| _syscall3(int, fchown, int, fd, uid_t, owner, gid_t, group) |
| |
| #else |
| |
| # define __NR___syscall_fchown __NR_fchown |
| static __inline__ _syscall3(int, __syscall_fchown, int, fd, |
| __kernel_uid_t, owner, __kernel_gid_t, group) |
| |
| int fchown(int fd, uid_t owner, gid_t group) |
| { |
| if (((owner + 1) > (uid_t) ((__kernel_uid_t) - 1U)) |
| || ((group + 1) > (gid_t) ((__kernel_gid_t) - 1U))) { |
| __set_errno(EINVAL); |
| return -1; |
| } |
| return (__syscall_fchown(fd, owner, group)); |
| } |
| |
| #endif |