libc/stdio/fgetpos.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
  10 #ifndef __DO_LARGEFILE
  11 #define FTELL ftell
  12 #endif
  13
  14 libc_hidden_proto(FTELL)
  15
  16 int fgetpos(FILE * __restrict stream, register fpos_t * __restrict pos)
  17 {
  18 #ifdef __STDIO_MBSTATE
  19
  20         int retval = -1;
  21         __STDIO_AUTO_THREADLOCK_VAR;
  22
  23         __STDIO_AUTO_THREADLOCK(stream);
  24
  25         if ((pos->__pos = FTELL(stream)) >= 0) {
  26                 __COPY_MBSTATE(&(pos->__mbstate), &(stream->__state));
  27                 pos->__mblen_pending = stream->__ungot_width[0];
  28                 retval = 0;
  29         }
  30
  31         __STDIO_AUTO_THREADUNLOCK(stream);
  32
  33         return retval;
  34
  35 #else
  36
  37         return ((pos->__pos = FTELL(stream)) >= 0) ? 0 : -1;
  38
  39 #endif
  40 }