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

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2000-02-18 03:39:52 +08:00
/* Reentrant versions of stat system call. This implementation just
calls the stat system call. */
#include <reent.h>
#include <unistd.h>
#include <sys/stat.h>
2000-02-18 03:39:52 +08:00
#include <_syslist.h>
/* 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_stat_syscalls = 1;
#else
/* We use the errno variable used by the system dependent layer. */
#undef errno
extern int errno;
/*
FUNCTION
<<_stat_r>>---Reentrant version of stat
INDEX
_stat_r
ANSI_SYNOPSIS
#include <reent.h>
int _stat_r(struct _reent *<[ptr]>,
const char *<[file]>, struct stat *<[pstat]>);
TRAD_SYNOPSIS
#include <reent.h>
int _stat_r(<[ptr]>, <[file]>, <[pstat]>)
struct _reent *<[ptr]>;
char *<[file]>;
struct stat *<[pstat]>;
DESCRIPTION
This is a reentrant version of <<stat>>. It
takes a pointer to the global data block, which holds
<<errno>>.
*/
int
_stat_r (ptr, file, pstat)
struct _reent *ptr;
_CONST char *file;
struct stat *pstat;
{
int ret;
errno = 0;
if ((ret = _stat (file, pstat)) == -1 && errno != 0)
ptr->_errno = errno;
return ret;
}
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */