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/* vi: set sw=4 ts=4: */
/*
* fstat() 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 <sys/stat.h>
#include "xstatconv.h"
#if defined __NR_fstat64 && !defined __NR_fstat
int fstat(int fd, struct stat *buf)
{
int result = INLINE_SYSCALL(fstat64, 2, fd, buf);
if (result == 0) {
/* Did we overflow? */
if (buf->__pad1 || buf->__pad2 || buf->__pad3
|| buf->__pad4 || buf->__pad5
|| buf->__pad6 || buf->__pad7) {
__set_errno(EOVERFLOW);
return -1;
}
}
return result;
}
libc_hidden_def(fstat)
#elif defined __NR_fstat
int fstat(int fd, struct stat *buf)
{
int result;
# ifdef __NR_fstat64
/* normal stat call has limited values for various stat elements
* e.g. uid device major/minor etc.
* so we use 64 variant if available
* in order to get newer versions of stat elements
*/
struct kernel_stat64 kbuf;
result = INLINE_SYSCALL(fstat64, 2, fd, &kbuf);
if (result == 0) {
__xstat32_conv(&kbuf, buf);
}
# else
struct kernel_stat kbuf;
result = INLINE_SYSCALL(fstat, 2, fd, &kbuf);
if (result == 0) {
__xstat_conv(&kbuf, buf);
}
# endif
return result;
}
libc_hidden_def(fstat)
# if ! defined __NR_fstat64
strong_alias_untyped(fstat,fstat64)
libc_hidden_def(fstat64)
# endif
#endif
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