/* getugroups.c -- return a list of the groups a user is in
- Copyright (C) 1990, 1991, 1998-2000, 2003-2007 Free Software Foundation.
+ Copyright (C) 1990, 1991, 1998-2000, 2003-2009 Free Software Foundation.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ the Free Software Foundation; either version 3 of the License, 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
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by David MacKenzie. */
#include "getugroups.h"
+#include <errno.h>
+#include <limits.h>
#include <stdio.h> /* grp.h on alpha OSF1 V2.0 uses "FILE *". */
-#include <grp.h>
-
+#include <string.h>
#include <unistd.h>
-#include <errno.h>
-#ifndef EOVERFLOW
-# define EOVERFLOW EINVAL
-#endif
+#if !HAVE_GRP_H
-/* Some old header files might not declare setgrent, getgrent, and endgrent.
- If you don't have them at all, we can't implement this function.
- You lose! */
-struct group *getgrent ();
+/* Mingw lacks all things related to group management. The best we
+ can do is fail with ENOSYS. */
-#include <string.h>
+int
+getugroups (int maxcount _UNUSED_PARAMETER_,
+ gid_t *grouplist _UNUSED_PARAMETER_,
+ char const *username _UNUSED_PARAMETER_,
+ gid_t gid _UNUSED_PARAMETER_)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+#else /* HAVE_GRP_H */
+# include <grp.h>
-#define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
+# define STREQ(s1, s2) (strcmp (s1, s2) == 0)
/* Like `getgroups', but for user USERNAME instead of for the current
process. Store at most MAXCOUNT group IDs in the GROUPLIST array.
Otherwise, return the number of IDs we've written into GROUPLIST. */
int
-getugroups (int maxcount, GETGROUPS_T *grouplist, char const *username,
+getugroups (int maxcount, gid_t *grouplist, char const *username,
gid_t gid)
{
int count = 0;
goto done;
grouplist[count] = grp->gr_gid;
}
- count++;
- if (count < 0)
+ if (count == INT_MAX)
{
errno = EOVERFLOW;
goto done;
}
+ count++;
}
}
}
return count;
}
+
+#endif /* HAVE_GRP_H */