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/*
* fstatat() for uClibc
*
* Copyright (C) 2009 Analog Devices Inc.
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#include <sys/stat.h>
#include "xstatconv.h"
/* 64bit ports tend to favor newfstatat() */
#if __WORDSIZE == 64 && defined __NR_newfstatat
# define __NR_fstatat64 __NR_newfstatat
#endif
#ifdef __NR_fstatat64
int fstatat(int fd, const char *file, struct stat *buf, int flag)
{
int ret;
# ifdef __ARCH_HAS_DEPRECATED_SYSCALLS__
struct kernel_stat64 kbuf;
ret = INLINE_SYSCALL(fstatat64, 4, fd, file, &kbuf, flag);
if (ret == 0)
__xstat32_conv(&kbuf, buf);
# else
ret = INLINE_SYSCALL(fstatat64, 4, fd, file, buf, flag);
if (ret == 0) {
/* Did we overflow */
if (buf->__pad1 || buf->__pad2 || buf->__pad3
|| buf->__pad4 || buf->__pad5 || buf->__pad6
|| buf->__pad7) {
__set_errno(EOVERFLOW);
return -1;
}
}
# endif /* __ARCH_HAS_DEPRECATED_SYSCALLS__ */
return ret;
}
#else
/* should add emulation with fstat() and /proc/self/fd/ ... */
#endif
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