Update.

* stdlib/canonicalize.c (canonicalize): Rename to __realpath and
	don't define static.  Remove old __realpath function.  TC1 of
	POSIX 2001 will allow the second parameter to be NULL.
	* stdlib/test-canon.c: Comment out test for NULL as second
	parameter of realpath.

	* time/offtime.c (__offtime): Set errno if overflow is detected.

ChangeLog

@@ -1,5 +1,13 @@
 2002-05-15  Ulrich Drepper  <drepper@redhat.com>
 
+	* stdlib/canonicalize.c (canonicalize): Rename to __realpath and
+	don't define static.  Remove old __realpath function.  TC1 of
+	POSIX 2001 will allow the second parameter to be NULL.
+	* stdlib/test-canon.c: Comment out test for NULL as second
+	parameter of realpath.
+
+	* time/offtime.c (__offtime): Set errno if overflow is detected.
+
 	* elf/Makefile (rtld-routines): Remove dl-brk and dl-sbrk.
 	* sysdeps/unix/sysv/linux/Makefile (sysdep-rtld-routines): Add
 	dl-brk and dl-sbrk.

stdlib/canonicalize.c

@@ -1,5 +1,5 @@
 /* Return the canonical absolute name of a given file.
-   Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+   Copyright (C) 1996-2001, 2002 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
@@ -37,8 +37,8 @@
    that cannot be resolved.  If the path can be resolved, RESOLVED
    holds the same value as the value returned.  */
 
-static char *
+char *
-canonicalize (const char *name, char *resolved)
+__realpath (const char *name, char *resolved)
 {
   char *rpath, *dest, *extra_buf = NULL;
   const char *start, *end, *rpath_limit;
@@ -204,25 +204,12 @@ error:
     free (rpath);
   return NULL;
 }
-
-
-char *
-__realpath (const char *name, char *resolved)
-{
-  if (resolved == NULL)
-    {
-      __set_errno (EINVAL);
-      return NULL;
-    }
-
-  return canonicalize (name, resolved);
-}
 weak_alias (__realpath, realpath)
 
 
 char *
 __canonicalize_file_name (const char *name)
 {
-  return canonicalize (name, NULL);
+  return __realpath (name, NULL);
 }
 weak_alias (__canonicalize_file_name, canonicalize_file_name)

stdlib/test-canon.c

@@ -1,5 +1,5 @@
 /* Test program for returning the canonical absolute name of a given file.
-   Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Mosberger <davidm@azstarnet.com>.
 
@@ -132,6 +132,8 @@ do_test (int argc, char ** argv)
       ++errors;
     }
 
+#if 0
+  /* This is now allowed.  The test is invalid.  */
   errno = 0;
   if (realpath ("/", NULL) != NULL || errno != EINVAL)
     {
@@ -139,6 +141,7 @@ do_test (int argc, char ** argv)
 	      " for realpath(...,NULL)\n", argv[0]);
       ++errors;
     }
+#endif
 
   errno = 0;
   if (realpath ("", buf) != NULL || errno != ENOENT)

time/offtime.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1993, 1997, 1998, 2002 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
@@ -16,6 +16,7 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <errno.h>
 #include <time.h>
 
 #define	SECS_PER_HOUR	(60 * 60)
@@ -73,7 +74,11 @@ __offtime (t, offset, tp)
     }
   tp->tm_year = y - 1900;
   if (tp->tm_year != y - 1900)
-    return 0;
+    {
+      /* The year cannot be represented due to overflow.  */
+      __set_errno (EOVERFLOW);
+      return 0;
+    }
   tp->tm_yday = days;
   ip = __mon_yday[__isleap(y)];
   for (y = 11; days < (long int) ip[y]; --y)