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/***********************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 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. */
/* */
/***********************************************************************/
#include <errno.h>
#include <mlvalues.h>
#include <memory.h>
#include <alloc.h>
#include <signals.h>
#include "unixsupport.h"
#include "cst2constr.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <io.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
#ifndef EOVERFLOW
#define EOVERFLOW ERANGE
#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 stat *buf)
{
CAMLparam0();
CAMLlocal5(atime, mtime, ctime, offset, v);
atime = copy_double((double) buf->st_atime);
mtime = copy_double((double) buf->st_mtime);
ctime = copy_double((double) buf->st_ctime);
offset = use_64 ? Val_file_offset(buf->st_size) : Val_int (buf->st_size);
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) = offset;
Field (v, 9) = atime;
Field (v, 10) = mtime;
Field (v, 11) = ctime;
CAMLreturn(v);
}
CAMLprim value unix_stat(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
ret = stat(p, &buf);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("stat", path);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "stat", path);
CAMLreturn(stat_aux(0, &buf));
}
CAMLprim value unix_lstat(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
#ifdef HAS_SYMLINK
ret = lstat(p, &buf);
#else
ret = stat(p, &buf);
#endif
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("lstat", path);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "lstat", path);
CAMLreturn(stat_aux(0, &buf));
}
CAMLprim value unix_fstat(value fd)
{
int ret;
struct stat buf;
caml_enter_blocking_section();
ret = fstat(Int_val(fd), &buf);
caml_leave_blocking_section();
if (ret == -1) uerror("fstat", Nothing);
if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
unix_error(EOVERFLOW, "fstat", Nothing);
return stat_aux(0, &buf);
}
CAMLprim value unix_stat_64(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
ret = stat(p, &buf);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("stat", path);
CAMLreturn(stat_aux(1, &buf));
}
CAMLprim value unix_lstat_64(value path)
{
CAMLparam1(path);
int ret;
struct stat buf;
char * p;
p = caml_stat_alloc_string(path);
caml_enter_blocking_section();
#ifdef HAS_SYMLINK
ret = lstat(p, &buf);
#else
ret = stat(p, &buf);
#endif
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) uerror("lstat", path);
CAMLreturn(stat_aux(1, &buf));
}
CAMLprim value unix_fstat_64(value fd)
{
int ret;
struct stat buf;
caml_enter_blocking_section();
ret = fstat(Int_val(fd), &buf);
caml_leave_blocking_section();
if (ret == -1) uerror("fstat", Nothing);
return stat_aux(1, &buf);
}
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