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2002-11-05 Ulrich Drepper <drepper@redhat.com> * libio/ioseekoff.c: Remove INTDEF. Define _IO_seekoff_unlocked. Same as old code without locking. _IO_seekoff calls this function after locking the stream. * libio/ioseekpos.c: Likewise for _IO_seekpos. * libio/libioP.h: Replace _IO_seekoff_internal and _IO_seekpos_internal prototypes with _IO_seekoff_unlocked and _IO_seekpos_unlocked prototypes. * libio/iolibio.h (_IO_fseek): Call _IO_seekoff_unlocked instead of _IO_seekoff_internal. (_IO_rewind): Likewise. * libio/ioftell.c: Likewise. * libio/ftello.c: Likewise. * libio/ftello64.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgetpos64.c: Likewise. * libio/oldiofgetpos.c: Likewise. * libio/oldiofgetpos64.c: Likewise. * libio/iofsetpos.c: Call _IO_seekpos_unlocked instead of _IO_seekpos_internal. * libio/iofsetpos64.c: Likewise. * libio/oldiofsetpos.c: Likewise. * libio/oldiofsetpos64.c: Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Don't modify _offset and _wide_data->_IO_read_end if adjustment can be made in the current buffer.
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Copyright (C) 1993, 1995-2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link the code in this file with
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files compiled with a GNU compiler to produce an executable,
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that does not cause the resulting executable to be covered by
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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This exception applies to code released by its copyright holders
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in files containing the exception. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <libioP.h>
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#include <errno.h>
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off_t
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ftello (fp)
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_IO_FILE *fp;
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{
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_IO_off64_t pos;
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CHECK_FILE (fp, -1L);
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_IO_cleanup_region_start ((void (*) (void *)) _IO_funlockfile, fp);
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_IO_flockfile (fp);
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pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0);
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if (_IO_in_backup (fp))
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{
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if (fp->_mode <= 0)
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pos -= fp->_IO_save_end - fp->_IO_save_base;
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}
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_IO_funlockfile (fp);
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_IO_cleanup_region_end (0);
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if (pos == _IO_pos_BAD)
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{
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#ifdef EIO
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if (errno == 0)
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__set_errno (EIO);
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#endif
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return -1L;
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}
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if ((_IO_off64_t) (off_t) pos != pos)
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{
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#ifdef EOVERFLOW
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__set_errno (EOVERFLOW);
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#endif
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return -1L;
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}
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return pos;
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}
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