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authorRoland McGrath <roland@gnu.org>1995-12-22 10:00:21 +0000
committerRoland McGrath <roland@gnu.org>1995-12-22 10:00:21 +0000
commit975320984b9f9fa6742136447ec82e7e304d83fd (patch)
tree6638c381441825ac81f4f9355eba25fd8863c7f9 /sysdeps/mach/hurd/setegid.c
parente3fa2641f4f296230aa2607f0df9d71ab3f9c7af (diff)
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Fri Dec 22 00:57:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> cvs/libc-951222
	* sysdeps/mach/hurd/setuid.c: Rewrote ID frobnication to do the
	right thing.
	* sysdeps/mach/hurd/setgid.c: Likewise.
	* sysdeps/mach/hurd/setreuid.c: Likewise.
	* sysdeps/mach/hurd/setregid.c: Likewise.
	* sysdeps/mach/hurd/setegid.c: Likewise.
	* sysdeps/mach/hurd/seteuid.c: Likewise.

	* sysdeps/mach/hurd/fork.c: Peek __mach_task_self_ value before
	proc_dostop call to work around kernel paging bug.

Thu Dec 21 12:19:32 1995  Miles Bader  <miles@gnu.ai.mit.edu>

	* sysdeps/mach/hurd/setuid.c (__setuid): Actually add the new uid
 	instead of putting it (and other uids) in the gids and leaving the
 	old uids as is.
Diffstat (limited to 'sysdeps/mach/hurd/setegid.c')
-rw-r--r--sysdeps/mach/hurd/setegid.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/sysdeps/mach/hurd/setegid.c b/sysdeps/mach/hurd/setegid.c
index 8ca4abee06..6710462125 100644
--- a/sysdeps/mach/hurd/setegid.c
+++ b/sysdeps/mach/hurd/setegid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 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
@@ -40,17 +40,18 @@ DEFUN(setegid, (gid), gid_t gid)
       /* Make a new auth handle which has EGID as the first element in the
          list of effective gids.  */
 
-      size_t ngen = _hurd_id.gen.ngids < 1 ? 1 : _hurd_id.gen.ngids;
-      gid_t newgen[ngen];
-
-      newgen[0] = gid;
-      memcpy (&newgen[1], _hurd_id.gen.gids, (ngen - 1) * sizeof (gid_t));
+      if (_hurd_id.gen.ngids > 0)
+	{
+	  _hurd_id.gen.gids[0] = gid;
+	  _hurd_id.valid = 0;
+	}
 
       err = __USEPORT (AUTH, __auth_makeauth
 		       (port, NULL, MACH_MSG_TYPE_COPY_SEND, 0,
 			_hurd_id.gen.uids, _hurd_id.gen.nuids,
 			_hurd_id.aux.uids, _hurd_id.aux.nuids,
-			newgen, ngen,
+			_hurd_id.gen.ngids ? _hurd_id.gen.gids : &gid,
+			_hurd_id.gen.ngids ?: 1,
 			_hurd_id.aux.gids, _hurd_id.aux.ngids,
 			&newauth));
     }