newlib-cygwin/newlib/libc/reent/fstat64r.c

73 lines
1.5 KiB
C

/* Reentrant versions of fstat system call. This implementation just
calls the fstat system call. */
#include <reent.h>
#include <unistd.h>
#include <sys/stat.h>
#include <_syslist.h>
#ifdef __LARGE64_FILES
/* Some targets provides their own versions of these functions. Those
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
#ifdef REENTRANT_SYSCALLS_PROVIDED
int _dummy_fstat_syscalls = 1;
#else
/* We use the errno variable used by the system dependent layer. */
#undef errno
extern int errno;
/*
FUNCTION
<<_fstat64_r>>---Reentrant version of fstat64
INDEX
_fstat64_r
ANSI_SYNOPSIS
#include <reent.h>
int _fstat64_r(struct _reent *<[ptr]>,
int <[fd]>, struct stat64 *<[pstat]>);
TRAD_SYNOPSIS
#include <reent.h>
int _fstat64_r(<[ptr]>, <[fd]>, <[pstat]>)
struct _reent *<[ptr]>;
int <[fd]>;
struct stat *<[pstat]>;
DESCRIPTION
This is a reentrant version of <<fstat64>>. It
takes a pointer to the global data block, which holds
<<errno>>. This function is only enabled on systems
that define __LARGE64_FILES.
*/
int
_DEFUN (_fstat64_r, (ptr, fd, pstat),
struct _reent *ptr _AND
int fd _AND
struct stat64 *pstat)
{
int ret;
errno = 0;
if ((ret = _fstat64 (fd, pstat)) == -1 && errno != 0)
ptr->_errno = errno;
return ret;
}
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
#endif /* __LARGE64_FILES */