2006-10-10 Roland McGrath <roland@frob.com>

	* sysdeps/mach/hurd/utimes.c: Use a union to avoid an improper cast.
	* sysdeps/mach/hurd/futimes.c: Likewise.
	* sysdeps/mach/hurd/lutimes.c: Likewise.

3 files changed, 34 insertions, 20 deletions

diff --git a/sysdeps/mach/hurd/futimes.c b/sysdeps/mach/hurd/futimes.c
index ca687b8bdf..4628eee2c3 100644
--- a/sysdeps/mach/hurd/futimes.c
+++ b/sysdeps/mach/hurd/futimes.c
@@ -1,5 +1,5 @@
 /* futimes -- change access and modification times of open file.  Hurd version.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006 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
@@ -28,20 +28,24 @@
 int
 __futimes (int fd, const struct timeval tvp[2])
 {
-  struct timeval timevals[2];
+  union tv
+  {
+    struct timeval tv;
+    time_value_t tvt;
+  };
+  const union tv *u = (const union tv *) tvp;
+  union tv nulltv[2];
   error_t err;
 
   if (tvp == NULL)
     {
       /* Setting the number of microseconds to `-1' tells the
          underlying filesystems to use the current time.  */
-      timevals[1].tv_usec = timevals[0].tv_usec = (time_t)-1;
-      tvp = timevals;
+      nulltv[0].tvt.microseconds = nulltv[1].tvt.microseconds = -1;
+      u = nulltv;
     }
 
-  err = HURD_DPORT_USE (fd, __file_utimes (port,
-					   *(time_value_t *) &tvp[0],
-					   *(time_value_t *) &tvp[1]));
+  err = HURD_DPORT_USE (fd, __file_utimes (port, u[0].tvt, u[1].tvt));
   return err ? __hurd_dfail (fd, err) : 0;
 }
 weak_alias (__futimes, futimes)
diff --git a/sysdeps/mach/hurd/lutimes.c b/sysdeps/mach/hurd/lutimes.c
index cf89d8862f..bf5610c467 100644
--- a/sysdeps/mach/hurd/lutimes.c
+++ b/sysdeps/mach/hurd/lutimes.c
@@ -1,5 +1,5 @@
 /* lutimes -- change access and modification times of a symlink.  Hurd version.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006 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
@@ -28,7 +28,13 @@
 int
 __lutimes (const char *file, const struct timeval tvp[2])
 {
-  struct timeval timevals[2];
+  union tv
+  {
+    struct timeval tv;
+    time_value_t tvt;
+  };
+  const union tv *u = (const union tv *) tvp;
+  union tv nulltv[2];
   error_t err;
   file_t port;
 
@@ -36,15 +42,14 @@ __lutimes (const char *file, const struct timeval tvp[2])
     {
       /* Setting the number of microseconds to `-1' tells the
          underlying filesystems to use the current time.  */
-      timevals[1].tv_usec = timevals[0].tv_usec = (time_t)-1;
-      tvp = timevals;
+      nulltv[0].tvt.microseconds = nulltv[1].tvt.microseconds = -1;
+      u = nulltv;
     }
 
   port = __file_name_lookup (file, O_NOLINK, 0);
   if (port == MACH_PORT_NULL)
     return -1;
-  err = __file_utimes (port,
-		       *(time_value_t *) &tvp[0], *(time_value_t *) &tvp[1]);
+  err = __file_utimes (port, u[0].tvt, u[1].tvt);
   __mach_port_deallocate (__mach_task_self (), port);
   if (err)
     return __hurd_fail (err);
diff --git a/sysdeps/mach/hurd/utimes.c b/sysdeps/mach/hurd/utimes.c
index 74f3a342f4..fdc1427feb 100644
--- a/sysdeps/mach/hurd/utimes.c
+++ b/sysdeps/mach/hurd/utimes.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991-1995, 97, 99, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1995,1997,1999,2000,2006
+	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
@@ -28,7 +29,13 @@ __utimes (file, tvp)
      const char *file;
      const struct timeval tvp[2];
 {
-  struct timeval timevals[2];
+  union tv
+  {
+    struct timeval tv;
+    time_value_t tvt;
+  };
+  const union tv *u = (const union tv *) tvp;
+  union tv nulltv[2];
   error_t err;
   file_t port;
 
@@ -36,19 +43,17 @@ __utimes (file, tvp)
     {
       /* Setting the number of microseconds to `-1' tells the
          underlying filesystems to use the current time.  */
-      timevals[1].tv_usec = timevals[0].tv_usec = (time_t)-1;
-      tvp = timevals;
+      nulltv[0].tvt.microseconds = nulltv[1].tvt.microseconds = -1;
+      u = nulltv;
     }
 
   port = __file_name_lookup (file, 0, 0);
   if (port == MACH_PORT_NULL)
     return -1;
-  err = __file_utimes (port,
-		       *(time_value_t *) &tvp[0], *(time_value_t *) &tvp[1]);
+  err = __file_utimes (port, u[0].tvt, u[1].tvt);
   __mach_port_deallocate (__mach_task_self (), port);
   if (err)
     return __hurd_fail (err);
   return 0;
 }
-
 weak_alias (__utimes, utimes)