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/* vi: set sw=4 ts=4: */ /* * chown() for uClibc * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.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 defined __NR_fchownat && !defined __NR_chown # include <fcntl.h> int chown(const char *path, uid_t owner, gid_t group) { return fchownat(AT_FDCWD, path, owner, group, 0); } #else # if (__WORDSIZE == 32 && defined(__NR_chown32)) || __WORDSIZE == 64 # ifdef __NR_chown32 # undef __NR_chown # define __NR_chown __NR_chown32 # endif _syscall3(int, chown, const char *, path, uid_t, owner, gid_t, group) # else # define __NR___syscall_chown __NR_chown static __inline__ _syscall3(int, __syscall_chown, const char *, path, __kernel_uid_t, owner, __kernel_gid_t, group) int chown(const char *path, 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_chown(path, owner, group)); } # endif #endif libc_hidden_def(chown) |