-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
#include <linux/posix_types.h>
-#include <sysdeps/unix/sysv/linux/32bit_uid_compat.h>
-
extern int __syscall_chown (const char *__file,
- uid_t __owner, gid_t __group);
+ __kernel_uid_t __owner, __kernel_gid_t __group);
#ifdef __NR_chown32
extern int __syscall_chown32 (const char *__file,
__kernel_uid32_t owner, __kernel_gid32_t group);
+
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+ uids. */
+extern int __libc_missing_32bit_uids;
+# endif
#endif /* __NR_chown32 */
int
__chown (const char *file, uid_t owner, gid_t group)
{
-#ifdef __NR_chown32
- if (__libc_missing_32bit_uids != NO_HIGHUIDS)
+#if __ASSUME_32BITUIDS
+ return INLINE_SYSCALL (chown32, 3, file, owner, group);
+#else
+# ifdef __NR_chown32
+ if (!__libc_missing_32bit_uids)
{
int result;
int saved_errno = errno;
return result;
__set_errno (saved_errno);
- __libc_missing_32bit_uids = NO_HIGHUIDS;
+ __libc_missing_32bit_uids = 1;
+ }
+# endif /* __NR_chown32 */
+
+ if (((owner + 1) > (gid_t) ((__kernel_uid_t) -1U))
+ || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
+ {
+ __set_errno (EINVAL);
+ return -1;
}
-#endif /* __NR_chown32 */
return INLINE_SYSCALL (chown, 3, file, owner, group);
+#endif
}
weak_alias (__chown, chown)