sysdeps/unix/sysv/sco3.2.4/getgroups.c

   1 /* Copyright (C) 1994, 1995, 1997, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sys/types.h>
  20 #include <unistd.h>
  21 #include <limits.h>
  22 #include <alloca.h>
  23
  24 extern int __sco_getgroups (int size, unsigned short int *list);
  25
  26 int
  27 __getgroups (size, list)
  28      int size; gid_t *list;
  29 {
  30   int i;
  31   unsigned short int *shortlist;
  32
  33   if (size <= 0)
  34     return __sco_getgroups (size, NULL);
  35
  36   shortlist = __alloca (size * sizeof (*shortlist));
  37
  38   size = __sco_getgroups (size, shortlist);
  39   for (i = 0; i < size; ++i)
  40     list[i] = shortlist[i];
  41
  42   return size;
  43 }
  44
  45 weak_alias (__getgroups, getgroups)