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authorJim Meyering <jim@meyering.net>1996-11-05 04:11:31 +0000
committerJim Meyering <jim@meyering.net>1996-11-05 04:11:31 +0000
commit8307b1f4cc7287af7cffc738ab75c1b7e633586a (patch)
treec7360c74ddd59065138d7077ada20af21fd5f1a6
parent037030812016e27513ac48e5abc7a1b85590a596 (diff)
downloadgnulib-8307b1f4cc7287af7cffc738ab75c1b7e633586a.tar.gz
.
-rw-r--r--lib/group_member.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/lib/group_member.c b/lib/group_member.c
deleted file mode 100644
index 9a079e2936..0000000000
--- a/lib/group_member.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/* group-member.c -- determine whether group id is in calling user's group list
- Copyright (C) 1994 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <sys/types.h>
-
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#include "group-member.h"
-
-char *xmalloc ();
-char *xrealloc ();
-
-struct group_info
- {
- int n_groups;
- GETGROUPS_T *group;
- };
-
-#ifdef HAVE_GETGROUPS
-
-static void
-free_group_info (g)
- struct group_info *g;
-{
- free (g->group);
- free (g);
-}
-
-static struct group_info *
-get_group_info ()
-{
- int n_groups;
- int n_group_slots;
- struct group_info *gi;
- GETGROUPS_T *group;
-
- /* getgroups () returns the number of elements that it was able to
- place into the array. We simply continue to call getgroups ()
- until the number of elements placed into the array is smaller than
- the physical size of the array. */
-
- group = NULL;
- n_groups = 0;
- n_group_slots = 0;
- while (n_groups == n_group_slots)
- {
- n_group_slots += 64;
- group = (GETGROUPS_T *) xrealloc (group,
- n_group_slots * sizeof (GETGROUPS_T));
- n_groups = getgroups (n_group_slots, group);
- }
-
- /* In case of error, the user loses. */
- if (n_groups < 0)
- {
- free (group);
- return NULL;
- }
-
- gi = (struct group_info *) xmalloc (sizeof (*gi));
- gi->n_groups = n_groups;
- gi->group = group;
-
- return gi;
-}
-
-#endif /* not HAVE_GETGROUPS */
-
-/* Return non-zero if GID is one that we have in our groups list.
- If there is no getgroups function, return non-zero if GID matches
- either of the current or effective group IDs. */
-
-int
-group_member (gid)
- gid_t gid;
-{
-#ifndef HAVE_GETGROUPS
- return ((gid == getgid ()) || (gid == getegid ()));
-#else
- int i;
- int found;
- struct group_info *gi;
-
- gi = get_group_info ();
- if (gi == NULL)
- return 0;
-
- /* Search through the list looking for GID. */
- found = 0;
- for (i = 0; i < gi->n_groups; i++)
- {
- if (gid == gi->group[i])
- {
- found = 1;
- break;
- }
- }
-
- free_group_info (gi);
-
- return found;
-#endif /* HAVE_GETGROUPS */
-}
-
-#ifdef TEST
-
-char *program_name;
-
-int
-main (int argc, char** argv)
-{
- int i;
-
- program_name = argv[0];
-
- for (i=1; i<argc; i++)
- {
- gid_t gid;
-
- gid = atoi (argv[i]);
- printf ("%d: %s\n", gid, group_member (gid) ? "yes" : "no");
- }
- exit (0);
-}
-
-#endif /* TEST */