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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
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Copyright (C) 1993 Free Software Foundation
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This file is part of the GNU IO Library. This library is free
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software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version.
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This 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does not cause
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the resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#include <libioP.h>
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#include <errno.h>
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int
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_IO_fsetpos(fp, posp)
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_IO_FILE* fp;
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const _IO_fpos_t *posp;
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{
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COERCE_FILE(fp);
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if (_IO_seekpos(fp, *posp, 0) == _IO_pos_BAD)
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{
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/*ANSI explicily requires setting errno to a positive value on failure.*/
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#ifdef EIO
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if (errno == 0)
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errno = EIO;
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#endif
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return EOF;
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}
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return 0;
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}
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