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56 lines
1.8 KiB
56 lines
1.8 KiB
/* This is file VFPRINTF.C */
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/* This file may have been modified by DJ Delorie (Jan 1991). If so,
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** these modifications are Coyright (C) 1991 DJ Delorie, 24 Kirsten Ave,
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** Rochester NH, 03867-2954, USA.
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*/
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/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted provided
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* that: (1) source distributions retain this entire copyright notice and
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* comment, and (2) distributions including binaries display the following
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* acknowledgement: ``This product includes software developed by the
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* University of California, Berkeley and its contributors'' in the
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* documentation or other materials provided with the distribution and in
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* all advertising materials mentioning features or use of this software.
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* Neither the name of the University nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)vfprintf.c 5.4 (Berkeley) 6/30/90";
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#endif /* LIBC_SCCS and not lint */
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#include <stdio.h>
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#include <stdarg.h>
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int
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vfprintf(FILE *iop, const char *fmt, ...)
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{
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va_list ap;
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int len;
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char localbuf[BUFSIZ];
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va_start (ap, fmt);
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if (iop->_flag & _IONBF) {
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iop->_flag &= ~_IONBF;
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iop->_ptr = iop->_base = localbuf;
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iop->_bufsiz = BUFSIZ;
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len = _doprnt(fmt, ap, iop);
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(void)fflush(iop);
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iop->_flag |= _IONBF;
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iop->_base = NULL;
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iop->_bufsiz = 0;
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iop->_cnt = 0;
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} else
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len = _doprnt(fmt, ap, iop);
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va_start (ap, fmt);
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return (ferror(iop) ? EOF : len);
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}
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