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glibc  2.9
getgroups.c
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00001 /* Copyright (C) 1991,1992,1995,1996,1997,2005 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <errno.h>
00020 #include <stddef.h>
00021 #include <unistd.h>
00022 #include <sys/types.h>
00023 #include <limits.h>
00024 
00025 
00026 /* If SIZE is zero, return the number of supplementary groups
00027    the calling process is in.  Otherwise, fill in the group IDs
00028    of its supplementary groups in LIST and return the number written.  */
00029 int
00030 __getgroups (size, list)
00031      int size;
00032      gid_t *list;
00033 {
00034 #if defined (NGROUPS_MAX) && NGROUPS_MAX == 0
00035   /* The system has no supplementary groups.  */
00036   return 0;
00037 #endif
00038 
00039   __set_errno (ENOSYS);
00040   return -1;
00041 }
00042 
00043 #if !(defined (NGROUPS_MAX) && NGROUPS_MAX == 0)
00044 stub_warning (getgroups);
00045 #endif
00046 
00047 weak_alias (__getgroups, getgroups)
00048 #include <stub-tag.h>