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glibc  2.9
isoc99_fscanf.c
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00001 /* Copyright (C) 1991, 1997, 2006, 2007 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <libioP.h>
00020 #include <stdarg.h>
00021 #include <stdio.h>
00022 
00023 /* Read formatted input from STREAM according to the format string FORMAT.  */
00024 /* VARARGS2 */
00025 int
00026 __isoc99_fscanf (FILE *stream, const char *format, ...)
00027 {
00028   va_list arg;
00029   int done;
00030 
00031   _IO_acquire_lock_clear_flags2 (stream);
00032   stream->_flags2 |= _IO_FLAGS2_SCANF_STD;
00033 
00034   va_start (arg, format);
00035   done = INTUSE(_IO_vfscanf) (stream, format, arg, NULL);
00036   va_end (arg);
00037 
00038   _IO_release_lock (stream);
00039   return done;
00040 }