Change setgroups to affect all the threads in the process.

ChangeLog

@@ -1,5 +1,10 @@
 2011-01-14  Ulrich Drepper  <drepper@gmail.com>
 
+	[BZ #10563]
+	* sysdeps/unix/sysv/linux/i386/setgroups.c: Use INLINE_SETXID_SYSCALL
+	to make the syscall.
+	* sysdeps/unix/sysv/linux/setgroups.c: New file.
+
 	[BZ #12378]
 	* posix/fnmatch_loop.c (FCT): When matching '[' keep track of beginning
 	and fall back to matching as normal character if the string ends before

NEWS

@@ -9,10 +9,11 @@ Version 2.13
 
 * The following bugs are resolved with this release:
 
-  3268, 7066, 10085, 10484, 10851, 11149, 11155, 11611, 11640, 11655, 11701,
+  3268, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11611, 11640, 11655,
-  11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005, 12037, 12067,
+  11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005, 12037,
-  12077, 12078, 12092, 12093, 12107, 12108, 12113, 12140, 12159, 12167,
+  12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, 12140, 12159,
-  12191, 12194, 12201, 12204, 12205, 12207, 12348, 12378, 12394, 12397
+  12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, 12378, 12394,
+  12397
 
 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
 

nptl/ChangeLog

@@ -1,3 +1,10 @@
+2011-01-14  Ulrich Drepper  <drepper@gmail.com>
+
+	[BZ #10563]
+	* sysdeps/pthread/setxid.h (__SETXID_1): Add cast to assignment.
+	(__SETXID_2): Likewise.
+	(__SETXID_3): Likewise.
+
 2011-01-13  Ulrich Drepper  <drepper@gmail.com>
 
 	[BZ #10484]

nptl/sysdeps/pthread/setxid.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2004, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2007, 2011 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
@@ -20,11 +20,11 @@
 #include <sysdep.h>
 
 #define __SETXID_1(cmd, arg1) \
-  cmd.id[0] = arg1
+  cmd.id[0] = (long int) arg1
 #define __SETXID_2(cmd, arg1, arg2) \
-  __SETXID_1 (cmd, arg1); cmd.id[1] = arg2
+  __SETXID_1 (cmd, arg1); cmd.id[1] = (long int) arg2
 #define __SETXID_3(cmd, arg1, arg2, arg3) \
-  __SETXID_2 (cmd, arg1, arg2); cmd.id[2] = arg3
+  __SETXID_2 (cmd, arg1, arg2); cmd.id[2] = (long int) arg3
 
 #ifdef SINGLE_THREAD
 # define INLINE_SETXID_SYSCALL(name, nr, args...) \

sysdeps/unix/sysv/linux/i386/setgroups.c

@@ -1,4 +1,5 @@
-/* Copyright (C) 1997,1998,2000,2002,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2000,2002,2004,2006,2011
+   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
@@ -25,6 +26,7 @@
 #include <sys/syscall.h>
 #include <bp-checks.h>
 
+#include <setxid.h>
 #include <linux/posix_types.h>
 #include <kernel-features.h>
 
@@ -44,7 +46,7 @@ int
 setgroups (size_t n, const gid_t *groups)
 {
 #if __ASSUME_32BITUIDS > 0
-  return INLINE_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
+  return INLINE_SETXID_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
 #else
   if (n > (size_t) __sysconf (_SC_NGROUPS_MAX))
     {
@@ -62,7 +64,8 @@ setgroups (size_t n, const gid_t *groups)
 	  int result;
 	  int saved_errno = errno;
 
-	  result = INLINE_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
+	  result = INLINE_SETXID_SYSCALL (setgroups32, 2, n,
+					  CHECK_N (groups, n));
 	  if (result == 0 || errno != ENOSYS)
 	    return result;
 
@@ -80,7 +83,8 @@ setgroups (size_t n, const gid_t *groups)
 	    }
 	}
 
-      return INLINE_SYSCALL (setgroups, 2, n, CHECK_N (kernel_groups, n));
+      return INLINE_SETXID_SYSCALL (setgroups, 2, n,
+				    CHECK_N (kernel_groups, n));
     }
 #endif
 }

sysdeps/unix/sysv/linux/setgroups.c

@@ -0,0 +1,37 @@
+/* Copyright (C) 1997,1998,2000,2002,2004,2006,2011
+   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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <grp.h>
+#include <setxid.h>
+#include <sysdep.h>
+
+
+/* Set the group set for the current user to GROUPS (N of them).  For
+   Linux we must convert the array of groups into the format that the
+   kernel expects.  */
+int
+setgroups (size_t n, const gid_t *groups)
+{
+#ifdef __NR_setgroups32
+# error "wrong setgroups.c file used"
+#endif
+  return INLINE_SETXID_SYSCALL (setgroups, 2, n, groups);
+}
+libc_hidden_def (setgroups)