path: root/mcon/U/gidtype.U
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authorManoj Srivastava <>2008-05-30 12:42:47 -0700
committerManoj Srivastava <>2008-05-30 12:42:47 -0700
commitceb3507a8fca872770b3dcd7e5c5b36179ab95b0 (patch)
treeb46b4e25cfff5f4c13a330b8428ceed343e3796c /mcon/U/gidtype.U
Import dist_3.5-236.orig.tar.gz
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+?RCS: $Id$
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic License,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS: $Log: gidtype.U,v $
+?RCS: Revision 1994/08/29 16:21:44 ram
+?RCS: patch32: now uses new Typedef unit to compute type information
+?RCS: patch32: removed useless usage of Setvar (for now)
+?RCS: Revision 1994/05/13 15:21:07 ram
+?RCS: patch27: added lint hint
+?RCS: Revision 1994/05/06 15:01:51 ram
+?RCS: patch23: protected gidtype setting via setvar (ADO)
+?RCS: patch23: made Gid_t comment more explicit (ADO)
+?RCS: Revision 3.0 1993/08/18 12:08:11 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?MAKE:gidtype: Myread Typedef Findhdr
+?MAKE: -pick add $@ %<
+?S: This variable defines Gid_t to be something like gid_t, int,
+?S: ushort, or whatever type is used to declare the return type
+?S: of getgid(). Typically, it is the type of group ids in the kernel.
+?C:Gid_t (GIDTYPE):
+?C: This symbol holds the return type of getgid() and the type of
+?C: argument to setrgid() and related functions. Typically,
+?C: it is the type of group ids in the kernel. It can be int, ushort,
+?C: uid_t, etc... It may be necessary to include <sys/types.h> to get
+?C: any typedef'ed information.
+?H:#define Gid_t $gidtype /* Type for getgid(), etc... */
+: see what type gids are declared as in the kernel
+set gid_t gidtype xxx stdio.h sys/types.h
+eval $typedef
+case "$gidtype" in
+ xxx=`./findhdr sys/user.h`
+ set `grep 'groups\[NGROUPS\];' "$xxx" 2>/dev/null` unsigned short
+ case $1 in
+ unsigned) dflt="$1 $2" ;;
+ *) dflt="$1" ;;
+ esac
+ ;;
+*) dflt="$gidtype";;
+echo " "
+rp="What is the type for group ids returned by getgid()?"
+. ./myread