libc/stdio/__fpurge.c

   1 /* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
   2  *
   3  * GNU Library General Public License (LGPL) version 2 or later.
   4  *
   5  * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
   6  */
   7
   8 #include "_stdio.h"
   9 #include <stdio_ext.h>
  10
  11 /* Solaris function --
  12  * Discard all buffered data whether reading or writing.
  13  */
  14
  15 void __fpurge(register FILE * __restrict stream)
  16 {
  17         __STDIO_STREAM_VALIDATE(stream);
  18
  19         __STDIO_STREAM_DISABLE_GETC(stream);
  20         __STDIO_STREAM_DISABLE_PUTC(stream);
  21         __STDIO_STREAM_INIT_BUFREAD_BUFPOS(stream);
  22         stream->__ungot[1] = 0;
  23
  24 #ifdef __STDIO_MBSTATE
  25         __INIT_MBSTATE(&(stream->__state));
  26 #endif
  27 #ifdef __UCLIBC_HAS_WCHAR__
  28         stream->__ungot_width[0] = 0;
  29 #endif
  30
  31         stream->__modeflags &= ~(__MASK_READING|__FLAG_WRITING);
  32
  33         __STDIO_STREAM_VALIDATE(stream);
  34 }