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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 Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include <caml/memory.h>
#include <caml/signals.h>
#define CAML_INTERNALS
#include <caml/osdeps.h>
#include "unixsupport.h"
#ifdef HAS_UNISTD
# include <unistd.h>
#else
# ifndef _WIN32
# include <sys/file.h>
# endif
# ifndef R_OK
# define R_OK 4/* test for read permission */
# define W_OK 2/* test for write permission */
# define X_OK 1/* test for execute (search) permission */
# define F_OK 0/* test for presence of file */
# endif
#endif
static const int access_permission_table[] = {
R_OK,
W_OK,
#ifdef _WIN32
/* Since there is no concept of execute permission on Windows,
we fall b+ack to the read permission */
R_OK,
#else
X_OK,
#endif
F_OK
};
CAMLprim value caml_unix_access(value path, value perms)
{
CAMLparam2(path, perms);
char_os * p;
int ret, cv_flags;
caml_unix_check_path(path, "access");
cv_flags = caml_convert_flag_list(perms, access_permission_table);
p = caml_stat_strdup_to_os(String_val(path));
caml_enter_blocking_section();
ret = access_os(p, cv_flags);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1)
caml_uerror("access", path);
CAMLreturn(Val_unit);
}
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