(linenum→info "unix/slp.c:2238")

glibc/2.7/libio/iofsetpos.c

    1: /* Copyright (C) 1993, 1995, 1997, 1998, 1999, 2000, 2002, 2003
    2:    Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4: 
    5:    The GNU C Library is free software; you can redistribute it and/or
    6:    modify it under the terms of the GNU Lesser General Public
    7:    License as published by the Free Software Foundation; either
    8:    version 2.1 of the License, or (at your option) any later version.
    9: 
   10:    The GNU C Library is distributed in the hope that it will be useful,
   11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13:    Lesser General Public License for more details.
   14: 
   15:    You should have received a copy of the GNU Lesser General Public
   16:    License along with the GNU C Library; if not, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.
   19: 
   20:    As a special exception, if you link the code in this file with
   21:    files compiled with a GNU compiler to produce an executable,
   22:    that does not cause the resulting executable to be covered by
   23:    the GNU Lesser General Public License.  This exception does not
   24:    however invalidate any other reasons why the executable file
   25:    might be covered by the GNU Lesser General Public License.
   26:    This exception applies to code released by its copyright holders
   27:    in files containing the exception.  */
   28: 
   29: #include <libioP.h>
   30: #include <errno.h>
   31: #include <shlib-compat.h>
   32: 
   33: int
   34: _IO_new_fsetpos (fp, posp)
   35:      _IO_FILE *fp;
   36:      const _IO_fpos_t *posp;
   37: {
   38:   int result;
   39:   CHECK_FILE (fp, EOF);
   40:   _IO_acquire_lock (fp);
   41:   if (_IO_seekpos_unlocked (fp, posp->__pos, _IOS_INPUT|_IOS_OUTPUT)
   42:       == _IO_pos_BAD)
   43:     {
   44:       /* ANSI explicitly requires setting errno to a positive value on
   45:          failure.  */
   46: #ifdef EIO
   47:       if (errno == 0)
   48:         __set_errno (EIO);
   49: #endif
   50:       result = EOF;
   51:     }
   52:   else
   53:     {
   54:       result = 0;
   55:       if (fp->_mode > 0
   56:           && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
   57:         /* This is a stateful encoding, restore the state.  */
   58:         fp->_wide_data->_IO_state = posp->__state;
   59:     }
   60:   _IO_release_lock (fp);
   61:   return result;
   62: }
   63: 
   64: strong_alias (_IO_new_fsetpos, __new_fsetpos)
   65: versioned_symbol (libc, _IO_new_fsetpos, _IO_fsetpos, GLIBC_2_2);
   66: versioned_symbol (libc, __new_fsetpos, fsetpos, GLIBC_2_2);
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