otherlibs/unix/getgr.c

   1 /***********************************************************************/
   2 /*                                                                     */
   3 /*                           Objective Caml                            */
   4 /*                                                                     */
   5 /*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         */
   6 /*                                                                     */
   7 /*  Copyright 1996 Institut National de Recherche en Informatique et   */
   8 /*  en Automatique.  All rights reserved.  This file is distributed    */
   9 /*  under the terms of the GNU Library General Public License, with    */
  10 /*  the special exception on linking described in file ../../LICENSE.  */
  11 /*                                                                     */
  12 /***********************************************************************/
  13
  14 /* $Id$ */
  15
  16 #include <mlvalues.h>
  17 #include <fail.h>
  18 #include <alloc.h>
  19 #include <memory.h>
  20 #include "unixsupport.h"
  21 #include <stdio.h>
  22 #include <grp.h>
  23
  24 static value alloc_group_entry(struct group *entry)
  25 {
  26   value res;
  27   value name = Val_unit, pass = Val_unit, mem = Val_unit;
  28
  29   Begin_roots3 (name, pass, mem);
  30     name = copy_string(entry->gr_name);
  31     pass = copy_string(entry->gr_passwd);
  32     mem = copy_string_array((const char**)entry->gr_mem);
  33     res = alloc_small(4, 0);
  34     Field(res,0) = name;
  35     Field(res,1) = pass;
  36     Field(res,2) = Val_int(entry->gr_gid);
  37     Field(res,3) = mem;
  38   End_roots();
  39   return res;
  40 }
  41
  42 CAMLprim value unix_getgrnam(value name)
  43 {
  44   struct group * entry;
  45   entry = getgrnam(String_val(name));
  46   if (entry == NULL) raise_not_found();
  47   return alloc_group_entry(entry);
  48 }
  49
  50 CAMLprim value unix_getgrgid(value gid)
  51 {
  52   struct group * entry;
  53   entry = getgrgid(Int_val(gid));
  54   if (entry == NULL) raise_not_found();
  55   return alloc_group_entry(entry);
  56 }