32 lines
1 KiB
C
32 lines
1 KiB
C
/* $OpenBSD: freadahead.c,v 1.1 2024/08/12 20:56:55 guenther Exp $ */
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/*
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* Copyright (c) 2024 Philip Guenther <guenther@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdio_ext.h>
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#include "local.h"
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size_t
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__freadahead(FILE *fp)
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{
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size_t r = 0;
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if (fp->_flags & __SRD) {
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r = fp->_r;
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if (HASUB(fp))
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r += fp->_ur;
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}
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return r;
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}
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