cpplib.c (do_pragma_poison): Strings in the token buffer are not nul-terminated.

	* cpplib.c (do_pragma_poison):  Strings in the token buffer are
	not nul-terminated.

From-SVN: r33247

gcc/ChangeLog

+2000-04-18  Zack Weinberg  <zack@wolery.cumb.org>
+
+	* cpplib.c (do_pragma_poison):  Strings in the token buffer are
+	not nul-terminated.
+
 Tue Apr 18 16:04:12 2000  Jim Wilson  <wilson@cygnus.com>
 
 	* config/ia64/sysv4.h (SELECT_SECTION): Use data_section if

gcc/cpplib.c

@@ -1028,14 +1028,14 @@ do_pragma_poison (pfile)
 	}
 
       p = pfile->token_buffer + written;
-      len = strlen (p);
+      len = CPP_PWRITTEN (pfile) - p;
       slot = _cpp_lookup_slot (pfile, p, len, INSERT, &hash);
       if (*slot)
 	{
 	  HASHNODE *hp = *slot;
 	  if (hp->type != T_POISON)
 	    {
-	      cpp_warning (pfile, "poisoning existing macro `%s'", p);
+	      cpp_warning (pfile, "poisoning existing macro `%s'", hp->name);
 	      if (hp->type == T_MACRO)
 		_cpp_free_definition (hp->value.defn);
 	      hp->value.defn = 0;