1 /* vprint.c -- v[fs]printf() for 4.[23] BSD systems. */
3 /* Copyright (C) 1987,1989 Free Software Foundation, Inc.
5 This file is part of GNU Bash, the Bourne Again SHell.
7 Bash is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 1, or (at your option) any later
12 Bash is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License along
18 with Bash; see the file COPYING. If not, write to the Free Software
19 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
24 # if defined (__STDC__)
25 # define NULL ((void *)0)
28 # endif /* __STDC__ */
32 * Beware! Don't trust the value returned by either of these functions; it
33 * seems that pre-4.3-tahoe implementations of _doprnt () return the first
34 * argument, i.e. a char *.
39 vfprintf (iop, fmt, ap)
45 char localbuf[BUFSIZ];
47 if (iop->_flag & _IONBF)
49 iop->_flag &= ~_IONBF;
50 iop->_ptr = iop->_base = localbuf;
51 len = _doprnt (fmt, ap, iop);
59 len = _doprnt (fmt, ap, iop);
60 return (ferror (iop) ? EOF : len);
67 vsprintf (str, fmt, ap)
74 f._flag = _IOWRT|_IOSTRG;
77 len = _doprnt (fmt, ap, &f);