62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/* Reentrant versions of open system call. */
|
|
|
|
#include <reent.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <_syslist.h>
|
|
|
|
#ifdef __LARGE64_FILES
|
|
|
|
/* Some targets provides their own versions of this functions. Those
|
|
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
|
|
|
|
#ifdef _REENT_ONLY
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
#define REENTRANT_SYSCALLS_PROVIDED
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
|
|
/* We use the errno variable used by the system dependent layer. */
|
|
#undef errno
|
|
extern int errno;
|
|
|
|
/*
|
|
FUNCTION
|
|
<<_open64_r>>---Reentrant version of open64
|
|
|
|
INDEX
|
|
_open64_r
|
|
|
|
SYNOPSIS
|
|
#include <reent.h>
|
|
int _open64_r(struct _reent *<[ptr]>,
|
|
const char *<[file]>, int <[flags]>, int <[mode]>);
|
|
|
|
DESCRIPTION
|
|
This is a reentrant version of <<open64>>. It
|
|
takes a pointer to the global data block, which holds
|
|
<<errno>>. This function only exists on systems with
|
|
large file support.
|
|
*/
|
|
|
|
int
|
|
_open64_r (ptr, file, flags, mode)
|
|
struct _reent *ptr;
|
|
const char *file;
|
|
int flags;
|
|
int mode;
|
|
{
|
|
int ret;
|
|
|
|
errno = 0;
|
|
if ((ret = _open64 (file, flags, mode)) == -1 && errno != 0)
|
|
_REENT_ERRNO(ptr) = errno;
|
|
return ret;
|
|
}
|
|
|
|
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
|
|
|
|
#endif /* __LARGE64_FILES */
|