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setbuf.c
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C/C++ Source or Header
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1993-10-16
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919b
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35 lines
/* This is file SETBUF.C */
/* This file may have been modified by DJ Delorie (Jan 1991). If so,
** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
** Rochester NH, 03867-2954, USA.
*/
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)setbuf.c 5.2 (Berkeley) 3/9/86";
#endif LIBC_SCCS and not lint
#include <stdio.h>
void setbuf(iop, buf)
register FILE *iop;
char *buf;
{
if (iop->_base != NULL && iop->_flag&_IOMYBUF)
free(iop->_base);
iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF);
if ((iop->_base = buf) == NULL) {
iop->_flag |= _IONBF;
iop->_bufsiz = NULL;
} else {
iop->_ptr = iop->_base;
iop->_bufsiz = BUFSIZ;
}
iop->_cnt = 0;
}