reactos/lib/crtdll/stdio/scanf.c

   1 /* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <stdarg.h>
  20 #include <msvcrt/stdio.h>
  21 #include <msvcrt/wchar.h>
  22 #include <msvcrt/alloc.h>
  23
  24
  25 /* The function `vscanf' is not defined in ISO C.  Therefore we must
  26    use the protected form here.  In stdio it is called `__vscanf' and
  27    in libio `_IO_vscanf'.  */
  28 #ifdef USE_IN_LIBIO
  29 # include <libioP.h>
  30 # define VSCANF _IO_vscanf
  31 #else
  32 # define VSCANF __vscanf
  33 #endif
  34
  35 int __vscanf (const char *format, va_list arg);
  36
  37 /* Read formatted input from stdin according to the format string FORMAT.  */
  38 /* VARARGS1 */
  39 int scanf (const char *format, ...)
  40 {
  41   va_list arg;
  42   int done;
  43
  44   va_start (arg, format);
  45   done = VSCANF (format, arg);
  46   va_end (arg);
  47
  48   return done;
  49 }
  50
  51 int
  52 wscanf(const wchar_t *fmt, ...)
  53 {
  54   va_list arg;
  55   int done;
  56   char *f;
  57   int i, len = wcslen(fmt);
  58
  59   f = malloc(len+1);
  60   for(i=0;i<len;i++)
  61         f[i] = fmt[i];
  62   f[i] = 0;
  63   va_start (arg, fmt);
  64   done = VSCANF (f, arg);
  65   va_end (arg);
  66   free(f);
  67
  68   return done;
  69 }