85 lines
2 KiB
C
85 lines
2 KiB
C
/* vprint.c -- v[fs]printf() for 4.[23] BSD systems. */
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/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 1, or (at your option) any later
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version.
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Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with Bash; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "config.h"
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#if defined (USE_VFPRINTF_EMULATION)
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#include <stdio.h>
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#if !defined (NULL)
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# if defined (__STDC__)
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# define NULL ((void *)0)
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# else
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# define NULL 0x0
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# endif /* __STDC__ */
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#endif /* !NULL */
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/*
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* Beware! Don't trust the value returned by either of these functions; it
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* seems that pre-4.3-tahoe implementations of _doprnt () return the first
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* argument, i.e. a char *.
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*/
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#include <varargs.h>
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int
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vfprintf (iop, fmt, ap)
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FILE *iop;
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char *fmt;
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va_list ap;
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{
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int len;
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char localbuf[BUFSIZ];
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if (iop->_flag & _IONBF)
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{
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iop->_flag &= ~_IONBF;
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iop->_ptr = iop->_base = localbuf;
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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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}
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else
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len = _doprnt (fmt, ap, iop);
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return (ferror (iop) ? EOF : len);
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}
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/*
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* Ditto for vsprintf
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*/
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int
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vsprintf (str, fmt, ap)
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char *str, *fmt;
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va_list ap;
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{
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FILE f;
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int len;
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f._flag = _IOWRT|_IOSTRG;
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f._ptr = str;
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f._cnt = 32767;
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len = _doprnt (fmt, ap, &f);
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*f._ptr = 0;
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return (len);
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}
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#endif /* USE_VFPRINTF_EMULATION */
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