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/**************************************************************************/
/* */
/* OCaml */
/* */
/* File contributed by Lionel Fourquaux */
/* */
/* Copyright 2001 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#define CAML_INTERNALS
#include <caml/mlvalues.h>
#include <caml/fail.h>
#include <caml/memory.h>
#include <caml/osdeps.h>
#include "unixsupport.h"
#include <errno.h>
#include <windows.h>
typedef
BOOL (WINAPI *tCreateHardLink)(
LPCWSTR lpFileName,
LPCWSTR lpExistingFileName,
LPSECURITY_ATTRIBUTES lpSecurityAttributes
);
CAMLprim value caml_unix_link(value follow, value path1, value path2)
{
HMODULE hModKernel32;
tCreateHardLink pCreateHardLink;
BOOL result;
wchar_t * wpath1, * wpath2;
if (Is_some(follow) && !Bool_val(Some_val(follow))) {
errno = ENOSYS;
caml_uerror("link", path2);
}
hModKernel32 = GetModuleHandle(L"KERNEL32.DLL");
pCreateHardLink =
(tCreateHardLink) GetProcAddress(hModKernel32, "CreateHardLinkW");
if (pCreateHardLink == NULL)
caml_invalid_argument("Unix.link not implemented");
caml_unix_check_path(path1, "link");
caml_unix_check_path(path2, "link");
wpath1 = caml_stat_strdup_to_utf16(String_val(path1));
wpath2 = caml_stat_strdup_to_utf16(String_val(path2));
result = pCreateHardLink(wpath2, wpath1, NULL);
caml_stat_free(wpath1);
caml_stat_free(wpath2);
if (! result) {
caml_win32_maperr(GetLastError());
caml_uerror("link", path2);
}
return Val_unit;
}
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