ocaml/otherlibs/unix/stat.c

96 lines
2.7 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* Automatique. Distributed only by permission. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <memory.h>
#include <alloc.h>
#include "unixsupport.h"
#include "cst2constr.h"
#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(struct stat *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_tuple(12);
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) = Val_int (buf->st_size);
Field (v, 9) = atime;
Field (v, 10) = ctime;
Field (v, 11) = mtime;
End_roots();
return v;
}
value unix_stat(value path) /* ML */
{
int ret;
struct stat buf;
ret = stat(String_val(path), &buf);
if (ret == -1) uerror("stat", path);
return stat_aux(&buf);
}
value unix_lstat(value path) /* ML */
{
int ret;
struct stat buf;
#ifdef HAS_SYMLINK
ret = lstat(String_val(path), &buf);
#else
ret = stat(String_val(path), &buf);
#endif
if (ret == -1) uerror("lstat", path);
return stat_aux(&buf);
}
value unix_fstat(value fd) /* ML */
{
int ret;
struct stat buf;
ret = fstat(Int_val(fd), &buf);
if (ret == -1) uerror("fstat", Nothing);
return stat_aux(&buf);
}