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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)
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