138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/***********************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../../LICENSE. */
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/* */
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/***********************************************************************/
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#include <errno.h>
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#include <mlvalues.h>
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#include <memory.h>
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#include <alloc.h>
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#include "unixsupport.h"
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#include "cst2constr.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <io.h>
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#ifndef S_IFLNK
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#define S_IFLNK 0
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#endif
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#ifndef S_IFIFO
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#define S_IFIFO 0
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#endif
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#ifndef S_IFSOCK
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#define S_IFSOCK 0
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#endif
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#ifndef S_IFBLK
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#define S_IFBLK 0
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#endif
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#ifndef EOVERFLOW
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#define EOVERFLOW ERANGE
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#endif
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static int file_kind_table[] = {
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S_IFREG, S_IFDIR, S_IFCHR, S_IFBLK, S_IFLNK, S_IFIFO, S_IFSOCK
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};
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static value stat_aux(int use_64, struct stat *buf)
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{
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CAMLparam0();
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CAMLlocal5(atime, mtime, ctime, offset, v);
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atime = copy_double((double) buf->st_atime);
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mtime = copy_double((double) buf->st_mtime);
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ctime = copy_double((double) buf->st_ctime);
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offset = use_64 ? Val_file_offset(buf->st_size) : Val_int (buf->st_size);
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v = alloc_small(12, 0);
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Field (v, 0) = Val_int (buf->st_dev);
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Field (v, 1) = Val_int (buf->st_ino);
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Field (v, 2) = cst_to_constr(buf->st_mode & S_IFMT, file_kind_table,
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sizeof(file_kind_table) / sizeof(int), 0);
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Field (v, 3) = Val_int (buf->st_mode & 07777);
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Field (v, 4) = Val_int (buf->st_nlink);
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Field (v, 5) = Val_int (buf->st_uid);
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Field (v, 6) = Val_int (buf->st_gid);
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Field (v, 7) = Val_int (buf->st_rdev);
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Field (v, 8) = offset;
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Field (v, 9) = atime;
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Field (v, 10) = mtime;
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Field (v, 11) = ctime;
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CAMLreturn(v);
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}
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CAMLprim value unix_stat(value path)
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{
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int ret;
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struct stat buf;
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ret = stat(String_val(path), &buf);
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if (ret == -1) uerror("stat", path);
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if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
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unix_error(EOVERFLOW, "stat", path);
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return stat_aux(0, &buf);
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}
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CAMLprim value unix_lstat(value path)
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{
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int ret;
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struct stat buf;
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#ifdef HAS_SYMLINK
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ret = lstat(String_val(path), &buf);
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#else
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ret = stat(String_val(path), &buf);
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#endif
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if (ret == -1) uerror("lstat", path);
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if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
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unix_error(EOVERFLOW, "lstat", path);
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return stat_aux(0, &buf);
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}
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CAMLprim value unix_fstat(value fd)
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{
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int ret;
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struct stat buf;
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ret = fstat(Int_val(fd), &buf);
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if (ret == -1) uerror("fstat", Nothing);
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if (buf.st_size > Max_long && (buf.st_mode & S_IFMT) == S_IFREG)
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unix_error(EOVERFLOW, "fstat", Nothing);
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return stat_aux(0, &buf);
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}
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CAMLprim value unix_stat_64(value path)
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{
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int ret;
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struct stat buf;
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ret = stat(String_val(path), &buf);
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if (ret == -1) uerror("stat", path);
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return stat_aux(1, &buf);
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}
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CAMLprim value unix_lstat_64(value path)
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{
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int ret;
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struct stat buf;
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#ifdef HAS_SYMLINK
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ret = lstat(String_val(path), &buf);
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#else
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ret = stat(String_val(path), &buf);
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#endif
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if (ret == -1) uerror("lstat", path);
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return stat_aux(1, &buf);
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}
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CAMLprim value unix_fstat_64(value fd)
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{
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int ret;
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struct stat buf;
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ret = fstat(Int_val(fd), &buf);
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if (ret == -1) uerror("fstat", Nothing);
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return stat_aux(1, &buf);
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}
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