* libio/oldfileops.c (_IO_old_file_xsputn): Fix last patch.

	Return EOF not 0.

	* sysdeps/unix/sysv/linux/readonly-area.c (__readonly_area): Also
	allow EACCES errors when opening /rpco for now.

	* wctype/wcfuncs.c: Don't use expensive wide char lookups in isw*
	functions if character is in ASCII range.
	* wctype/wcfuncs_l.c: Likewise.

ChangeLog

@@ -1,3 +1,15 @@
+2005-10-17  Ulrich Drepper  <drepper@redhat.com>
+
+	* libio/oldfileops.c (_IO_old_file_xsputn): Fix last patch.
+	Return EOF not 0.
+
+	* sysdeps/unix/sysv/linux/readonly-area.c (__readonly_area): Also
+	allow EACCES errors when opening /rpco for now.
+
+	* wctype/wcfuncs.c: Don't use expensive wide char lookups in isw*
+	functions if character is in ASCII range.
+	* wctype/wcfuncs_l.c: Likewise.
+
 2005-05-03  Robert Millan  <robertmh@gnu.org>
 
 	* abi-tags (.*-.*-knetbsd.*-gnu.*): New match, with ABI value 4.

libio/oldfileops.c

@@ -754,7 +754,7 @@ _IO_old_file_xsputn (f, data, n)
       _IO_size_t block_size, do_write;
       /* Next flush the (full) buffer. */
       if (__overflow (f, EOF) == EOF)
-	return to_do == 0 ? 0 : n - to_do;
+	return to_do == 0 ? EOF : n - to_do;
 
       /* Try to maintain alignment: write a whole number of blocks.
 	 dont_write is what gets left over. */

sysdeps/unix/sysv/linux/readonly-area.c

@@ -35,10 +35,15 @@ __readonly_area (const char *ptr, size_t size)
   FILE *fp = fopen ("/proc/self/maps", "rc");
   if (fp == NULL)
     {
-      if (errno == ENOENT)
-	/* It is the system administrator's choice to not have /proc
-	   available to this process (e.g., because it runs in a chroot
-	   environment.  Don't fail in this case.  */
+      /* It is the system administrator's choice to not have /proc
+	 available to this process (e.g., because it runs in a chroot
+	 environment.  Don't fail in this case.  */
+      if (errno == ENOENT
+	  /* The kernel has a bug in that a process is denied access
+	     to the /proc filesystem if it is set[ug]id.  There has
+	     been no willingness to change this in the kernel so
+	     far.  */
+	  || errno == EACCES)
 	return 1;
       return -1;
     }