cdrtools/libschily/stdio/peekc.c

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2025-06-15 04:19:58 +08:00
/* @(#)peekc.c 1.7 04/08/08 Copyright 1986, 1996-2003 J. Schilling */
/*
* Copyright (c) 1986, 1996-2003 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include "schilyio.h"
EXPORT int
peekc(f)
FILE *f;
{
int c;
down2(f, _IOREAD, _IORW);
if (ferror(f))
return (EOF);
if ((c = getc(f)) != EOF)
ungetc(c, f);
return (c);
}