libc/stdio/fsetpos.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 FSEEK fseek
  12 #endif
  13
  14 libc_hidden_proto(FSEEK)
  15
  16 int fsetpos(FILE *stream, register const fpos_t *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 ((retval = FSEEK(stream, pos->__pos, SEEK_SET)) == 0) {
  26                 __COPY_MBSTATE(&(stream->__state), &(pos->__mbstate));
  27                 stream->__ungot_width[0]= pos->__mblen_pending;
  28         }
  29
  30         __STDIO_AUTO_THREADUNLOCK(stream);
  31
  32         return retval;
  33
  34 #else
  35
  36         return FSEEK(stream, pos->__pos, SEEK_SET);
  37
  38 #endif
  39 }