ocaml/otherlibs/unix/getgroups.c

48 lines
1.4 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* 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. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <alloc.h>
#ifdef HAS_GETGROUPS
#include <sys/types.h>
#ifdef HAS_UNISTD
#include <unistd.h>
#endif
#include <limits.h>
#include "unixsupport.h"
CAMLprim value unix_getgroups(value unit)
{
gid_t gidset[NGROUPS_MAX];
int n;
value res;
int i;
n = getgroups(NGROUPS_MAX, gidset);
if (n == -1) uerror("getgroups", Nothing);
res = alloc_tuple(n);
for (i = 0; i < n; i++)
Field(res, i) = Val_int(gidset[i]);
return res;
}
#else
CAMLprim value unix_getgroups(value unit)
{ invalid_argument("getgroups not implemented"); }
#endif