ocaml/otherlibs/win32unix/stat.c

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/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 2002 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
/* $Id$ */
#include <errno.h>
#include <mlvalues.h>
#include <memory.h>
#include <alloc.h>
#include "unixsupport.h"
#include "cst2constr.h"
#define _INTEGRAL_MAX_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#ifndef S_IFLNK
#define S_IFLNK 0
#endif
#ifndef S_IFIFO
#define S_IFIFO 0
#endif
#ifndef S_IFSOCK
#define S_IFSOCK 0
#endif
#ifndef S_IFBLK
#define S_IFBLK 0
#endif
static int file_kind_table[] = {
S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK
};
static value stat_aux(int use_64, struct _stati64 *buf)
{
value v;
value atime = Val_unit, mtime = Val_unit, ctime = Val_unit;
Begin_roots3(atime,mtime,ctime)
atime = copy_double((double) buf->st_atime);
mtime = copy_double((double) buf->st_mtime);
ctime = copy_double((double) buf->st_ctime);
v = alloc_small(12, 0);
Field (v, 0) = Val_int (buf->st_dev);
Field (v, 1) = Val_int (buf->st_ino);
Field (v, 2) = cst_to_constr(buf->st_mode & S_IFMT, file_kind_table,
sizeof(file_kind_table) / sizeof(int), 0);
Field (v, 3) = Val_int(buf->st_mode & 07777);
Field (v, 4) = Val_int (buf->st_nlink);
Field (v, 5) = Val_int (buf->st_uid);
Field (v, 6) = Val_int (buf->st_gid);
Field (v, 7) = Val_int (buf->st_rdev);
Field (v, 8) =
use_64 ? copy_int64(buf->st_size) : Val_int (buf->st_size);
Field (v, 9) = atime;
Field (v, 10) = mtime;
Field (v, 11) = ctime;
End_roots();
return v;
}
CAMLprim value unix_stat(value path)
{
int ret;
struct _stati64 buf;
ret = _stati64(String_val(path), &buf);
if (ret == -1) uerror("stat", path);
if (buf.st_size > Max_long) {
win32_maperr(ERROR_ARITHMETIC_OVERFLOW);
uerror("stat", path);
}
return stat_aux(0, &buf);
}
CAMLprim value unix_stat_64(value path)
{
int ret;
struct _stati64 buf;
ret = _stati64(String_val(path), &buf);
if (ret == -1) uerror("stat", path);
return stat_aux(1, &buf);
}