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32bit UID support, next patch



This patch adds 32bit UID support for most functions to glibc 2.2.
Missing are (this might come tomorrow):
- stat etc.
- msgctl, semctl, shmctl

The patches is essentially Chris' patch with __ASSUME_32BITUIDS added
and a bit of reformating.  Chris, the __ASSUME_32BITUIDS allows to
configure [1] with e.g. --enable-kernel=2.3.40.  This way all
compatibility stuff will be removed and only the new syscalls will be
used.  But this features makes the code a bit more complicated.  On
the other side I could simplify your patch a bit, since stat32 was not
added to the kernel.

I'd appreciate if some people could review the patch carefully.

Thanks Chris for your patches,
Andreas

Footnotes: 
[1]  This only works with glibc 2.2, 2.1 doesn't support it.

2000-01-12  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_32BITUIDS):
	Added for Linux 2.3.39+.

	* sysdeps/unix/sysv/linux/getresgid.c: Support 32bit UIDs and
	32bit GIDs.
	* sysdeps/unix/sysv/linux/getresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/chown.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/getgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setfsgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setfsuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setregid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresgid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/setuid.c: Likewise.
	* sysdeps/unix/sysv/linux/setegid.c: Likewise.

	* sysdeps/unix/sysv/linux/arm/chown.c: New file.
	* sysdeps/unix/sysv/linux/arm/fchown.c: New file.
	* sysdeps/unix/sysv/linux/arm/geteuid.c: New file.
	* sysdeps/unix/sysv/linux/arm/getegid.c: New file.
	* sysdeps/unix/sysv/linux/arm/getuid.c: New file.
	* sysdeps/unix/sysv/linux/arm/getgid.c: New file.
	* sysdeps/unix/sysv/linux/arm/lchown.c: New file.
	* sysdeps/unix/sysv/linux/i386/fchown.c: New file.
	* sysdeps/unix/sysv/linux/i386/getegid.c: New file.
	* sysdeps/unix/sysv/linux/i386/geteuid.c: New file.
	* sysdeps/unix/sysv/linux/i386/getgid.c: New file.
	* sysdeps/unix/sysv/linux/i386/getuid.c: New file.
	* sysdeps/unix/sysv/linux/i386/lchown.c: New file.
	* sysdeps/unix/sysv/linux/m68k/chown.c: New file.
	* sysdeps/unix/sysv/linux/m68k/fchown.c: New file.
	* sysdeps/unix/sysv/linux/m68k/getegid.c: New file.
	* sysdeps/unix/sysv/linux/m68k/geteuid.c: New file.
	* sysdeps/unix/sysv/linux/m68k/getgid.c: New file.
	* sysdeps/unix/sysv/linux/m68k/getuid.c: New file.
	* sysdeps/unix/sysv/linux/m68k/lchown.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/chown.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/fchown.c: New file. 
	* sysdeps/unix/sysv/linux/sparc/sparc32/getegid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/geteuid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/getgid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/getuid.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/lchown.c: New file.
	Based on a patch by Chris Wing <wingc@engin.umich.edu>.

============================================================
Index: sysdeps/unix/sysv/linux/kernel-features.h
--- sysdeps/unix/sysv/linux/kernel-features.h	2000/01/03 23:22:27	1.8
+++ sysdeps/unix/sysv/linux/kernel-features.h	2000/01/12 17:30:12
@@ -102,3 +102,8 @@
 # define __ASSUME_MMAP2_SYSCALL		1
 # define __ASSUME_STAT64_SYSCALL	1
 #endif
+
+/* Linux 2.3.39 introduced 32bit UID/GIDs.  */
+#if __LINUX_KERNEL_VERSION >= 131879
+# define __ASSUME_32BITUIDS		1
+#endif
============================================================
Index: sysdeps/unix/sysv/linux/getresgid.c
--- sysdeps/unix/sysv/linux/getresgid.c	1998/10/21 15:10:14	1.3
+++ sysdeps/unix/sysv/linux/getresgid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,16 +24,47 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include "kernel-features.h"
+
 #ifdef __NR_getresgid
 
 extern int __syscall_getresgid (__kernel_gid_t *rgid, __kernel_gid_t *egid,
 				__kernel_gid_t *sgid);
 
+# ifdef __NR_getresgid32
+extern int __syscall_getresgid32 (__kernel_gid32_t *rgid, __kernel_gid32_t *egid,
+				  __kernel_gid32_t *sgid);
+
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_getresgid32 */
+
+
 int
 getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid)
 {
+# if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (getresgid32, 3, rgid, egid, sgid);
+# else  
   __kernel_gid_t k_rgid, k_egid, k_sgid;
   int result;
+#  ifdef __NR_getresgid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int r;
+      int saved_errno = errno;
+
+      r = INLINE_SYSCALL (getresgid32, 3, rgid, egid, sgid);
+      if (r == 0 || errno != ENOSYS)
+	return r;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_getresgid32 */
 
   result = INLINE_SYSCALL (getresgid, 3, &k_rgid, &k_egid, &k_sgid);
 
@@ -45,6 +76,7 @@
     }
 
   return result;
+# endif
 }
 #else
 # include <sysdeps/generic/getresgid.c>
============================================================
Index: sysdeps/unix/sysv/linux/getresuid.c
--- sysdeps/unix/sysv/linux/getresuid.c	1998/10/21 15:10:22	1.3
+++ sysdeps/unix/sysv/linux/getresuid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,16 +24,46 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+
+#include "kernel-features.h"
+
 #ifdef __NR_getresuid
 
 extern int __syscall_getresuid (__kernel_uid_t *ruid, __kernel_uid_t *euid,
 				__kernel_uid_t *suid);
 
+# ifdef __NR_getresuid32
+extern int __syscall_getresuid32 (__kernel_uid32_t *ruid, __kernel_uid32_t *euid,
+				  __kernel_uid32_t *suid);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_getresuid32 */
+
 int
 getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
 {
+# if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid);
+# else
   __kernel_uid_t k_ruid, k_euid, k_suid;
   int result;
+#  ifdef __NR_getresuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int r;
+      int saved_errno = errno;
+
+      r = INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid);
+      if (r == 0 || errno != ENOSYS)
+	return r;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_getresuid32 */
 
   result = INLINE_SYSCALL (getresuid, 3, &k_ruid, &k_euid, &k_suid);
 
@@ -45,6 +75,7 @@
     }
 
   return result;
+# endif
 }
 #else
 # include <sysdeps/generic/getresuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/setegid.c
--- sysdeps/unix/sysv/linux/setegid.c	1995/09/08 14:01:33	1.1
+++ sysdeps/unix/sysv/linux/setegid.c	2000/01/12 17:30:12
@@ -1 +1,51 @@
-#include <sysdeps/unix/bsd/setegid.c>
+/* Copyright (C) 1998, 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifdef __NR_setresgid
+
+extern int __setresgid (gid_t rgid, gid_t egid, gid_t sgid);
+
+int
+setegid (gid_t gid)
+{
+  int result;
+
+  if (gid == (gid_t) ~0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  /* First try the syscall.  */
+  result = __setresgid (-1, gid, -1);
+  if (result == -1 && errno == ENOSYS)
+    /* No system call available.  Use emulation.  This may not work
+       since `setregid' also sets the saved group ID when GID is not
+       equal to the real group ID, making it impossible to switch back. */
+    result = __setregid (-1, gid);
+
+  return result;
+}
+#else
+# include <sysdeps/unix/bsd/setegid.c>
+#endif
============================================================
Index: sysdeps/unix/sysv/linux/i386/chown.c
--- sysdeps/unix/sysv/linux/i386/chown.c	1999/05/26 23:35:30	1.6
+++ sysdeps/unix/sysv/linux/i386/chown.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2000 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
@@ -23,7 +23,10 @@
 #include <sys/syscall.h>
 
 #include <kernel-features.h>
+#include <linux/posix_types.h>
 
+
+
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
   was introduced.  The new chown now follows symlinks - the old chown and the
@@ -39,6 +42,15 @@
 #if defined __NR_lchown || __ASSUME_LCHOWN_SYSCALL > 0
 /* Running under Linux > 2.1.80.  */
 
+# ifdef __NR_chown32
+extern int __syscall_chown32 (const char *__file,
+			      __kernel_uid32_t owner, __kernel_gid32_t group);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_chown32 */
 
 int
 __real_chown (const char *file, uid_t owner, gid_t group)
@@ -50,6 +62,20 @@
   if (!__libc_old_chown)
     {
       int saved_errno = errno;
+#  ifdef __NR_chown32
+      if (!__libc_missing_32bit_uids)
+	{
+	  int result;
+	  int saved_errno = errno;
+
+	  result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+	  if (result == 0 || errno != ENOSYS)
+	    return result;
+
+	  __set_errno (saved_errno);
+	  __libc_missing_32bit_uids = 1;
+	}
+#  endif /* __NR_chown32 */
       result = INLINE_SYSCALL (chown, 3, file, owner, group);
 
       if (result >= 0 || errno != ENOSYS)
@@ -60,7 +86,25 @@
     }
 
   return __lchown (file, owner, group);
+# elif __ASSUME_32BITUIDS
+  /* This implies __ASSUME_LCHOWN_SYSCALL.  */
+  return INLINE_SYSCALL (chown32, 3, file, owner, group);
 # else
+  /* !__ASSUME_32BITUIDS && ASSUME_LCHOWN_SYSCALL  */
+#  ifdef __NR_chown32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_chown32 */
   return INLINE_SYSCALL (chown, 3, file, owner, group);
 # endif
 }
============================================================
Index: sysdeps/unix/sysv/linux/i386/getgroups.c
--- sysdeps/unix/sysv/linux/i386/getgroups.c	1998/10/22 11:47:31	1.3
+++ sysdeps/unix/sysv/linux/i386/getgroups.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 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
@@ -23,17 +23,25 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-
 #include <linux/posix_types.h>
+#include <kernel-features.h>
+
+
+extern int __syscall_getgroups(int, __kernel_gid_t *);
 
-extern int __syscall_getgroups __P ((int, __kernel_gid_t *));
+#ifdef __NR_getgroups32
+extern int __syscall_getgroups32 (int, __kernel_gid32_t *);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_getgroups32 */
 
 /* For Linux we must convert the array of groups from the format that the
    kernel returns.  */
 int
-__getgroups (n, groups)
-     int n;
-     gid_t *groups;
+__getgroups (int n, gid_t *groups)
 {
   if (n < 0)
     {
@@ -42,8 +50,25 @@
     }
   else
     {
+#if __ASSUME_32BITUIDS > 0
+      return INLINE_SYSCALL (getgroups32, 2, n, groups);
+#else
       int i, ngids;
       __kernel_gid_t kernel_groups[n = MIN (n, __sysconf (_SC_NGROUPS_MAX))];
+# ifdef __NR_getgroups32
+      if (!__libc_missing_32bit_uids)
+	{
+	  int result;
+	  int saved_errno = errno;
+
+	  result = INLINE_SYSCALL (getgroups32, 2, n, groups);
+	  if (result == 0 || errno != ENOSYS)
+	    return result;
+
+	  __set_errno (saved_errno);
+	  __libc_missing_32bit_uids = 1;
+	}
+# endif /* __NR_getgroups32 */
 
       ngids = INLINE_SYSCALL (getgroups, 2, n, kernel_groups);
       if (n != 0 && ngids > 0)
@@ -52,6 +77,7 @@
 
       return ngids;
     }
+#endif
 }
 
 weak_alias (__getgroups, getgroups)
============================================================
Index: sysdeps/unix/sysv/linux/i386/setegid.c
--- sysdeps/unix/sysv/linux/i386/setegid.c	1998/10/16 16:25:41	1.1
+++ sysdeps/unix/sysv/linux/i386/setegid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 96, 97, 98, 2000 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
@@ -16,22 +16,12 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#include <errno.h>
 #include <unistd.h>
 #include <sys/types.h>
 
-#include <linux/posix_types.h>
-
 int
 setegid (gid)
      gid_t gid;
 {
-  if (gid == (gid_t) ~0
-      || gid != (gid_t) ((__kernel_gid_t) gid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
   return __setregid (-1, gid);
 }
============================================================
Index: sysdeps/unix/sysv/linux/i386/seteuid.c
--- sysdeps/unix/sysv/linux/i386/seteuid.c	1998/10/16 16:25:45	1.1
+++ sysdeps/unix/sysv/linux/i386/seteuid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -21,7 +21,6 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <linux/posix_types.h>
 
 #ifdef __NR_setresuid
 extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
@@ -31,14 +30,6 @@
 seteuid (uid_t uid)
 {
   int result;
-
-  if (uid == (uid_t) ~0
-      || uid != (uid_t) ((__kernel_uid_t) uid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
   /* First try the syscall.  */
 #ifdef __NR_setresuid
   result = __setresuid (-1, uid, -1);
============================================================
Index: sysdeps/unix/sysv/linux/i386/setfsgid.c
--- sysdeps/unix/sysv/linux/i386/setfsgid.c	1998/11/30 14:21:33	1.3
+++ sysdeps/unix/sysv/linux/i386/setfsgid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -22,15 +22,43 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-
 #include <linux/posix_types.h>
+#include "kernel-features.h"
+
 
 #ifdef __NR_setfsgid
+
 extern int __syscall_setfsgid (__kernel_gid_t);
 
+# ifdef __NR_setfsgid32
+extern int __syscall_setfsgid32 (__kernel_gid32_t);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_setfsgid32 */
+
 int
 setfsgid (gid_t gid)
 {
+# if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setfsgid32, 1, gid);
+# else
+#  ifdef __NR_setfsgid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setfsgid32, 1, gid);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_setfsgid32 */
   if (gid != (gid_t) ((__kernel_gid_t) gid))
     {
       __set_errno (EINVAL);
@@ -38,5 +66,6 @@
     }
 
   return INLINE_SYSCALL (setfsgid, 1, gid);
+# endif
 }
 #endif
============================================================
Index: sysdeps/unix/sysv/linux/i386/setfsuid.c
--- sysdeps/unix/sysv/linux/i386/setfsuid.c	1998/11/30 14:21:34	1.3
+++ sysdeps/unix/sysv/linux/i386/setfsuid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,13 +24,42 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
+#include "kernel-features.h"
 
 #ifdef __NR_setfsuid
+
 extern int __syscall_setfsuid (__kernel_uid_t);
 
+# ifdef __NR_setfsuid32
+extern int __syscall_setfsuid32 (__kernel_uid32_t);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_setfsuid32 */
+
 int
 setfsuid (uid_t uid)
 {
+# if  __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setfsuid32, 1, uid);
+# else  
+#  ifdef __NR_setfsuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setfsuid32, 1, uid);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_setfsuid32 */
+
   if (uid != (uid_t) ((__kernel_uid_t) uid))
     {
       __set_errno (EINVAL);
@@ -38,5 +67,6 @@
     }
 
   return INLINE_SYSCALL (setfsuid, 1, uid);
+# endif
 }
 #endif
============================================================
Index: sysdeps/unix/sysv/linux/i386/setgid.c
--- sysdeps/unix/sysv/linux/i386/setgid.c	1998/10/21 15:20:39	1.2
+++ sysdeps/unix/sysv/linux/i386/setgid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -25,11 +25,41 @@
 
 #include <linux/posix_types.h>
 
+#include "kernel-features.h"
+
 extern int __syscall_setgid (__kernel_gid_t);
 
+#ifdef __NR_setgid32
+extern int __syscall_setgid32 (__kernel_gid32_t);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_setgid32 */
+
 int
 __setgid (gid_t gid)
 {
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setgid32, 1, gid);
+#else
+# ifdef __NR_setgid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setgid32, 1, gid);
+
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_setgid32 */
+
   if (gid == (gid_t) ~0
       || gid != (gid_t) ((__kernel_gid_t) gid))
     {
@@ -38,5 +68,6 @@
     }
 
   return INLINE_SYSCALL (setgid, 1, gid);
+#endif
 }
 weak_alias (__setgid, setgid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/setgroups.c
--- sysdeps/unix/sysv/linux/i386/setgroups.c	1998/11/02 10:04:58	1.6
+++ sysdeps/unix/sysv/linux/i386/setgroups.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 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
@@ -23,18 +23,26 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-
 #include <linux/posix_types.h>
+#include "kernel-features.h"
+
+
+extern int __syscall_setgroups (int, const __kernel_gid_t *);
 
-extern int __syscall_setgroups __P ((int, const __kernel_gid_t *));
+#ifdef __NR_setgroups32
+extern int __syscall_setgroups32 __P ((int, const __kernel_gid32_t *));
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_setgroups32 */
 
 /* 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 (n, groups)
-     size_t n;
-     const gid_t *groups;
+setgroups (size_t n, const gid_t *groups)
 {
   if (n > (size_t) __sysconf (_SC_NGROUPS_MAX))
     {
@@ -43,9 +51,25 @@
     }
   else
     {
+#if __ASSUME_32BITUIDS > 0
+      return INLINE_SYSCALL (setgroups32, 2, n, groups);
+#else
       size_t i;
       __kernel_gid_t kernel_groups[n];
+# ifdef __NR_setgroups32
+      if (!__libc_missing_32bit_uids)
+	{
+	  int result;
+	  int saved_errno = errno;
+
+	  result = INLINE_SYSCALL (setgroups32, 2, n, groups);
+	  if (result == 0 || errno != ENOSYS)
+	    return result;
 
+	  __set_errno (saved_errno);
+	  __libc_missing_32bit_uids = 1;
+	}
+# endif /* __NR_setgroups32 */
       for (i = 0; i < n; i++)
 	{
 	  kernel_groups[i] = groups[i];
@@ -58,4 +82,5 @@
 
       return INLINE_SYSCALL (setgroups, 2, n, kernel_groups);
     }
+#endif
 }
============================================================
Index: sysdeps/unix/sysv/linux/i386/setregid.c
--- sysdeps/unix/sysv/linux/i386/setregid.c	1998/10/21 15:21:09	1.1
+++ sysdeps/unix/sysv/linux/i386/setregid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,12 +24,41 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
+#include "kernel-features.h"
 
+
 extern int __syscall_setregid (__kernel_gid_t, __kernel_gid_t);
 
+#ifdef __NR_setregid32
+extern int __syscall_setregid32 (__kernel_gid32_t, __kernel_gid32_t);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_setregid32 */
+
 int
 __setregid (gid_t rgid, gid_t egid)
 {
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setregid32, 2, rgid, egid);
+#else
+# ifdef __NR_setregid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setregid32, 2, rgid, egid);
+
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_setregid32 */
   if ((rgid != (gid_t) -1 && rgid != (gid_t) (__kernel_gid_t) rgid)
       || (egid != (gid_t) -1 && egid != (gid_t) (__kernel_gid_t) egid))
     {
@@ -38,5 +67,6 @@
     }
 
   return INLINE_SYSCALL (setregid, 2, rgid, egid);
+#endif
 }
 weak_alias (__setregid, setregid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/setresgid.c
--- sysdeps/unix/sysv/linux/i386/setresgid.c	1998/10/21 15:25:36	1.3
+++ sysdeps/unix/sysv/linux/i386/setresgid.c	2000/01/12 17:30:12
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,14 +24,44 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include "kernel-features.h"
+
 #ifdef __NR_setresgid
 
 extern int __syscall_setresgid (__kernel_gid_t rgid, __kernel_gid_t egid,
 				__kernel_gid_t sgid);
 
+# ifdef __NR_setresgid32
+extern int __syscall_setresgid32 (__kernel_gid32_t rgid, __kernel_gid32_t egid,
+				  __kernel_gid32_t sgid);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_setresgid32 */
+
 int
 setresgid (gid_t rgid, gid_t egid, gid_t sgid)
 {
+# if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
+# else
+#  ifdef __NR_setresgid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_setresgid32 */
+
   if ((rgid != (gid_t) -1 && rgid != (gid_t) (__kernel_gid_t) rgid)
       || (egid != (gid_t) -1 && egid != (gid_t) (__kernel_gid_t) egid)
       || (sgid != (gid_t) -1 && sgid != (gid_t) (__kernel_gid_t) sgid))
@@ -41,5 +71,6 @@
     }
 
   return INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
+# endif
 }
 #endif
============================================================
Index: sysdeps/unix/sysv/linux/i386/setresuid.c
--- sysdeps/unix/sysv/linux/i386/setresuid.c	1998/10/21 15:25:37	1.4
+++ sysdeps/unix/sysv/linux/i386/setresuid.c	2000/01/12 17:30:13
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,14 +24,44 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include "kernel-features.h"
+
 #ifdef __NR_setresuid
 
 extern int __syscall_setresuid (__kernel_uid_t rgid, __kernel_uid_t egid,
 				__kernel_uid_t sgid);
 
+# ifdef __NR_setresuid32
+extern int __syscall_setresuid32 (__kernel_uid32_t rgid, __kernel_uid32_t egid,
+				  __kernel_uid32_t sgid);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_setresuid32 */
+
 int
 __setresuid (uid_t ruid, uid_t euid, uid_t suid)
 {
+# if __ASSUME_32BITUIDS > 0  
+  return INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
+# else
+#  ifdef __NR_setresuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_setresuid32 */
+
   if ((ruid != (uid_t) -1 && ruid != (uid_t) (__kernel_uid_t) ruid)
       || (euid != (uid_t) -1 && euid != (uid_t) (__kernel_uid_t) euid)
       || (suid != (uid_t) -1 && suid != (uid_t) (__kernel_uid_t) suid))
@@ -41,6 +71,7 @@
     }
 
   return INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
+# endif
 }
 weak_alias (__setresuid, setresuid)
 #endif
============================================================
Index: sysdeps/unix/sysv/linux/i386/setreuid.c
--- sysdeps/unix/sysv/linux/i386/setreuid.c	1998/10/21 15:21:15	1.1
+++ sysdeps/unix/sysv/linux/i386/setreuid.c	2000/01/12 17:30:13
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,12 +24,41 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
+#include "kernel-features.h"
 
+
 extern int __syscall_setreuid (__kernel_uid_t, __kernel_uid_t);
 
+#ifdef __NR_setreuid32
+extern int __syscall_setreuid32 (__kernel_uid32_t, __kernel_uid32_t);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_setreuid32 */
+
 int
 __setreuid (uid_t ruid, uid_t euid)
 {
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setreuid32, 2, ruid, euid);
+#else
+# ifdef __NR_setreuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setreuid32, 2, ruid, euid);
+
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_setreuid32 */
   if ((ruid != (uid_t) -1 && ruid != (uid_t) (__kernel_uid_t) ruid)
       || (euid != (uid_t) -1 && euid != (uid_t) (__kernel_uid_t) euid))
     {
@@ -38,5 +67,6 @@
     }
 
   return INLINE_SYSCALL (setreuid, 2, ruid, euid);
+#endif
 }
 weak_alias (__setreuid, setreuid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/setuid.c
--- sysdeps/unix/sysv/linux/i386/setuid.c	1998/10/21 15:25:45	1.2
+++ sysdeps/unix/sysv/linux/i386/setuid.c	2000/01/12 17:30:13
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000 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
@@ -24,12 +24,40 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
+#include "kernel-features.h"
 
 extern int __syscall_setuid (__kernel_uid_t);
 
+#ifdef __NR_setuid32
+extern int __syscall_setuid32 (__kernel_uid32_t);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_setuid32 */
+
 int
 __setuid (uid_t uid)
 {
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (setuid32, 1, uid);
+#else
+# ifdef __NR_setuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (setuid32, 1, uid);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_setuid32 */
+
   if (uid == (uid_t) ~0
       || uid != (uid_t) ((__kernel_uid_t) uid))
     {
@@ -38,5 +66,6 @@
     }
 
   return INLINE_SYSCALL (setuid, 1, uid);
+#endif
 }
 weak_alias (__setuid, setuid)
============================================================
Index: sysdeps/unix/sysv/linux/arm/chown.c
--- sysdeps/unix/sysv/linux/arm/chown.c	created
+++ sysdeps/unix/sysv/linux/arm/chown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/m68k/chown.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/fchown.c
--- sysdeps/unix/sysv/linux/arm/fchown.c	created
+++ sysdeps/unix/sysv/linux/arm/fchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fchown.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/geteuid.c
--- sysdeps/unix/sysv/linux/arm/geteuid.c	created
+++ sysdeps/unix/sysv/linux/arm/geteuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/geteuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/getegid.c
--- sysdeps/unix/sysv/linux/arm/getegid.c	created
+++ sysdeps/unix/sysv/linux/arm/getegid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getegid.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/getuid.c
--- sysdeps/unix/sysv/linux/arm/getuid.c	created
+++ sysdeps/unix/sysv/linux/arm/getuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/getgid.c
--- sysdeps/unix/sysv/linux/arm/getgid.c	created
+++ sysdeps/unix/sysv/linux/arm/getgid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getgid.c>
============================================================
Index: sysdeps/unix/sysv/linux/arm/lchown.c
--- sysdeps/unix/sysv/linux/arm/lchown.c	created
+++ sysdeps/unix/sysv/linux/arm/lchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/lchown.c>
============================================================
Index: sysdeps/unix/sysv/linux/i386/fchown.c
--- sysdeps/unix/sysv/linux/i386/fchown.c	created
+++ sysdeps/unix/sysv/linux/i386/fchown.c	Wed Jan 12 17:38:45 2000	1.1
@@ -0,0 +1,73 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include <linux/posix_types.h>
+#include "kernel-features.h"
+
+extern int __syscall_fchown (int __fd,
+			     __kernel_uid_t __owner, __kernel_gid_t __group);
+
+#ifdef __NR_fchown32
+extern int __syscall_fchown32 (int __fd,
+			       __kernel_uid32_t __owner, __kernel_gid32_t __group);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_fchown32 */
+
+int
+__fchown (int fd, uid_t owner, gid_t group)
+{
+#if  __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (fchown32, 3, fd, owner, group);
+#else
+# ifdef __NR_fchown32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (fchown32, 3, fd, owner, group);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_fchown32 */
+
+  if ( (owner != (uid_t) ((__kernel_uid_t) owner)) ||
+       (group != (gid_t) ((__kernel_gid_t) group)) )
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL (fchown, 3, fd, owner, group);
+#endif
+}
+
+weak_alias (__fchown, fchown)
============================================================
Index: sysdeps/unix/sysv/linux/i386/getegid.c
--- sysdeps/unix/sysv/linux/i386/getegid.c	created
+++ sysdeps/unix/sysv/linux/i386/getegid.c	Wed Jan 12 18:18:23 2000	1.1
@@ -0,0 +1,62 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include "kernel-features.h"
+
+extern int __syscall_getegid (void);
+
+#ifdef __NR_getegid32
+extern int __syscall_getegid32 (void);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_getegid32 */
+
+gid_t
+__getegid (void)
+{
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (getegid32, 0);
+#else
+# ifdef __NR_getegid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (getegid32, 0);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_getegid32 */
+
+  return INLINE_SYSCALL (getegid, 0);
+#endif
+}
+
+weak_alias (__getegid, getegid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/geteuid.c
--- sysdeps/unix/sysv/linux/i386/geteuid.c	created
+++ sysdeps/unix/sysv/linux/i386/geteuid.c	Wed Jan 12 18:18:45 2000	1.1
@@ -0,0 +1,62 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include "kernel-features.h"
+
+extern int __syscall_geteuid (void);
+
+#ifdef __NR_geteuid32
+extern int __syscall_geteuid32 (void);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_geteuid32 */
+
+uid_t
+__geteuid (void)
+{
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (geteuid32, 0);
+#else
+# ifdef __NR_geteuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (geteuid32, 0);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_geteuid32 */
+
+  return INLINE_SYSCALL (geteuid, 0);
+#endif
+}
+
+weak_alias (__geteuid, geteuid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/getgid.c
--- sysdeps/unix/sysv/linux/i386/getgid.c	created
+++ sysdeps/unix/sysv/linux/i386/getgid.c	Wed Jan 12 17:42:31 2000	1.1
@@ -0,0 +1,63 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "kernel-features.h"
+
+extern int __syscall_getgid (void);
+
+#ifdef __NR_getgid32
+extern int __syscall_getgid32 (void);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_getgid32 */
+
+gid_t
+__getgid (void)
+{
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (getgid32, 0);
+#else
+# ifdef __NR_getgid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (getgid32, 0);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_getgid32 */
+
+  return INLINE_SYSCALL (getgid, 0);
+#endif
+}
+
+weak_alias (__getgid, getgid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/getuid.c
--- sysdeps/unix/sysv/linux/i386/getuid.c	created
+++ sysdeps/unix/sysv/linux/i386/getuid.c	Wed Jan 12 17:44:04 2000	1.1
@@ -0,0 +1,63 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "kernel-features.h"
+
+extern int __syscall_getuid (void);
+
+#ifdef __NR_getuid32
+extern int __syscall_getuid32 (void);
+# if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  This is the definition */
+int __libc_missing_32bit_uids;
+# endif
+#endif /* __NR_getuid32 */
+
+uid_t
+__getuid (void)
+{
+#if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (getuid32, 0);
+#else
+# ifdef __NR_getuid32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (getuid32, 0);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+# endif /* __NR_getuid32 */
+
+  return INLINE_SYSCALL (getuid, 0);
+#endif
+}
+
+weak_alias (__getuid, getuid)
============================================================
Index: sysdeps/unix/sysv/linux/i386/lchown.c
--- sysdeps/unix/sysv/linux/i386/lchown.c	created
+++ sysdeps/unix/sysv/linux/i386/lchown.c	Wed Jan 12 17:57:23 2000	1.1
@@ -0,0 +1,79 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include <linux/posix_types.h>
+#include "kernel-features.h"
+
+#ifdef __NR_lchown
+extern int __syscall_lchown (const char *__file,
+			     __kernel_uid_t __owner, __kernel_gid_t __group);
+
+# ifdef __NR_lchown32
+extern int __syscall_lchown32 (const char *__file,
+			       __kernel_uid32_t __owner, __kernel_gid32_t __group);
+#  if __ASSUME_32BITUIDS == 0
+/* This variable is shared with all files that need to check for 32bit
+   uids.  */
+extern int __libc_missing_32bit_uids;
+#  endif
+# endif /* __NR_lchown32 */
+
+int
+__lchown (const char *file, uid_t owner, gid_t group)
+{
+# if __ASSUME_32BITUIDS > 0
+  return INLINE_SYSCALL (lchown32, 3, file, owner, group);
+# else
+#  ifdef __NR_lchown32
+  if (!__libc_missing_32bit_uids)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (lchown32, 3, file, owner, group);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = 1;
+    }
+#  endif /* __NR_lchown32 */
+
+  if ( (owner != (uid_t) ((__kernel_uid_t) owner)) ||
+       (group != (gid_t) ((__kernel_gid_t) group)) )
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL (lchown, 3, file, owner, group);
+# endif
+}
+
+weak_alias (__lchown, lchown)
+
+#else
+# include <sysdeps/generic/lchown.c>
+#endif
+
============================================================
Index: sysdeps/unix/sysv/linux/m68k/chown.c
--- sysdeps/unix/sysv/linux/m68k/chown.c	created
+++ sysdeps/unix/sysv/linux/m68k/chown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1,57 @@
+/* Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include <linux/posix_types.h>
+
+#include <sysdeps/unix/sysv/linux/32bit_uid_compat.h>
+
+extern int __syscall_chown (const char *__file,
+			    uid_t __owner, gid_t __group);
+
+#ifdef __NR_chown32
+extern int __syscall_chown32 (const char *__file,
+			      __kernel_uid32_t owner, __kernel_gid32_t group);
+#endif /* __NR_chown32 */
+
+int
+__chown (const char *file, uid_t owner, gid_t group)
+{
+#ifdef __NR_chown32
+  if (__libc_missing_32bit_uids != NO_HIGHUIDS)
+    {
+      int result;
+      int saved_errno = errno;
+
+      result = INLINE_SYSCALL (chown32, 3, file, owner, group);
+      if (result == 0 || errno != ENOSYS)
+	return result;
+
+      __set_errno (saved_errno);
+      __libc_missing_32bit_uids = NO_HIGHUIDS;
+    }
+#endif /* __NR_chown32 */
+
+  return INLINE_SYSCALL (chown, 3, file, owner, group);
+}
+weak_alias (__chown, chown)
============================================================
Index: sysdeps/unix/sysv/linux/m68k/fchown.c
--- sysdeps/unix/sysv/linux/m68k/fchown.c	created
+++ sysdeps/unix/sysv/linux/m68k/fchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fchown.c>
============================================================
Index: sysdeps/unix/sysv/linux/m68k/getegid.c
--- sysdeps/unix/sysv/linux/m68k/getegid.c	created
+++ sysdeps/unix/sysv/linux/m68k/getegid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getegid.c>
============================================================
Index: sysdeps/unix/sysv/linux/m68k/geteuid.c
--- sysdeps/unix/sysv/linux/m68k/geteuid.c	created
+++ sysdeps/unix/sysv/linux/m68k/geteuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/geteuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/m68k/getgid.c
--- sysdeps/unix/sysv/linux/m68k/getgid.c	created
+++ sysdeps/unix/sysv/linux/m68k/getgid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getgid.c>
============================================================
Index: sysdeps/unix/sysv/linux/m68k/getuid.c
--- sysdeps/unix/sysv/linux/m68k/getuid.c	created
+++ sysdeps/unix/sysv/linux/m68k/getuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/m68k/lchown.c
--- sysdeps/unix/sysv/linux/m68k/lchown.c	created
+++ sysdeps/unix/sysv/linux/m68k/lchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/lchown.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/chown.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/chown.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/chown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/m68k/chown.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/fchown.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/fchown.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/fchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fchown.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/getegid.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/getegid.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/getegid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getegid.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/geteuid.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/geteuid.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/geteuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/geteuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/getgid.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/getgid.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/getgid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getgid.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/getuid.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/getuid.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/getuid.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/getuid.c>
============================================================
Index: sysdeps/unix/sysv/linux/sparc/sparc32/lchown.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/lchown.c	created
+++ sysdeps/unix/sysv/linux/sparc/sparc32/lchown.c	Wed Jan 12 16:53:23 2000	1.1
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/lchown.c>

-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.rhein-neckar.de

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