ocaml/otherlibs/win32unix/stat.c

112 lines
3.2 KiB
C

/***********************************************************************/
/* */
/* OCaml */
/* */
/* 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)
{
CAMLparam0 ();
CAMLlocal1 (v);
v = caml_alloc (12, 0);
Store_field (v, 0, Val_int (buf->st_dev));
Store_field (v, 1, Val_int (buf->st_ino));
Store_field (v, 2, cst_to_constr (buf->st_mode & S_IFMT, file_kind_table,
sizeof(file_kind_table) / sizeof(int), 0));
Store_field (v, 3, Val_int(buf->st_mode & 07777));
Store_field (v, 4, Val_int (buf->st_nlink));
Store_field (v, 5, Val_int (buf->st_uid));
Store_field (v, 6, Val_int (buf->st_gid));
Store_field (v, 7, Val_int (buf->st_rdev));
Store_field (v, 8,
use_64 ? copy_int64(buf->st_size) : Val_int (buf->st_size));
Store_field (v, 9, copy_double((double) buf->st_atime));
Store_field (v, 10, copy_double((double) buf->st_mtime));
Store_field (v, 11, copy_double((double) buf->st_ctime));
CAMLreturn (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);
}
CAMLprim value unix_fstat(value handle)
{
int ret;
struct _stati64 buf;
ret = _fstati64(win_CRT_fd_of_filedescr(handle), &buf);
if (ret == -1) uerror("fstat", Nothing);
if (buf.st_size > Max_long) {
win32_maperr(ERROR_ARITHMETIC_OVERFLOW);
uerror("fstat", Nothing);
}
return stat_aux(0, &buf);
}
CAMLprim value unix_fstat_64(value handle)
{
int ret;
struct _stati64 buf;
ret = _fstati64(win_CRT_fd_of_filedescr(handle), &buf);
if (ret == -1) uerror("fstat", Nothing);
return stat_aux(1, &buf);
}