Insert libio rewrite and its various changes from devo.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@15129 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 42 insertions, 25 deletions

diff --git a/libio/iovsscanf.c b/libio/iovsscanf.c
index 529778098a5..21600f53efb 100644
--- a/libio/iovsscanf.c
+++ b/libio/iovsscanf.c
@@ -1,37 +1,54 @@
-/* 
-Copyright (C) 1993 Free Software Foundation
+/* Copyright (C) 1993, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU IO Library.
 
-This file is part of the GNU IO Library.  This library is free
-software; you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option)
-any later version.
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
 
-This 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 General Public License for more details.
+   This 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
+   General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this library; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING.  If not, write to
+   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA.
 
-As a special exception, if you link this library with files
-compiled with a GNU compiler to produce an executable, this does not cause
-the resulting executable to be covered by the GNU General Public License.
-This exception does not however invalidate any other reasons why
-the executable file might be covered by the GNU General Public License. */
+   As a special exception, if you link this library with files
+   compiled with a GNU compiler to produce an executable, this does
+   not cause the resulting executable to be covered by the GNU General
+   Public License.  This exception does not however invalidate any
+   other reasons why the executable file might be covered by the GNU
+   General Public License.  */
 
 #include "libioP.h"
 #include "strfile.h"
 
 int
-DEFUN(_IO_vsscanf, (string, format, args),
-      const char *string AND const char *format AND _IO_va_list args)
+_IO_vsscanf (string, format, args)
+     const char *string;
+     const char *format;
+     _IO_va_list args;
 {
+  int ret;
   _IO_strfile sf;
-  _IO_init((_IO_FILE*)&sf, 0);
-  _IO_JUMPS((_IO_FILE*)&sf) = &_IO_str_jumps;
-  _IO_str_init_static ((_IO_FILE*)&sf, (char*)string, 0, NULL);
-  return _IO_vfscanf((_IO_FILE*)&sf, format, args, NULL);
+#ifdef _IO_MTSAFE_IO
+  _IO_lock_t lock;
+  sf._sbf._f._lock = &lock;
+#endif
+  _IO_init (&sf._sbf._f, 0);
+  _IO_JUMPS (&sf._sbf._f) = &_IO_str_jumps;
+  _IO_str_init_static (&sf._sbf._f, (char*)string, 0, NULL);
+  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, &sf);
+  _IO_flockfile (&sf._sbf._f);
+  ret = _IO_vfscanf (&sf._sbf._f, format, args, NULL);
+  _IO_cleanup_region_end (1);
+  return ret;
 }
+
+#ifdef weak_alias
+weak_alias (_IO_vsscanf, __vsscanf)
+weak_alias (_IO_vsscanf, vsscanf)
+#endif