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

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1995-02-18 01:27:10 +00:00
/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <sys/types.h>
#include <unistd.h>
#include <limits.h>
#include <alloca.h>
extern int __sco_getgroups __P ((int size, unsigned short int *list));
int
DEFUN(__getgroups, (size, list), int size AND gid_t *list)
{
int i;
unsigned short int *shortlist;
if (size <= 0)
return __sco_getgroups (size, NULL);
shortlist = __alloca (size * sizeof (*shortlist));
size = __sco_getgroups (size, shortlist);
for (i = 0; i < size; ++i)
list[i] = shortlist[i];
return size;
}
weak_alias (__getgroups, getgroups)