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
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 Bash is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Bash. If not, see <http://www.gnu.org/licenses/>.
23 #if defined (USE_VFPRINTF_EMULATION)
28 # if defined (__STDC__)
29 # define NULL ((void *)0)
32 # endif /* __STDC__ */
36 * Beware! Don't trust the value returned by either of these functions; it
37 * seems that pre-4.3-tahoe implementations of _doprnt () return the first
38 * argument, i.e. a char *.
43 vfprintf (iop, fmt, ap)
49 char localbuf[BUFSIZ];
51 if (iop->_flag & _IONBF)
53 iop->_flag &= ~_IONBF;
54 iop->_ptr = iop->_base = localbuf;
55 len = _doprnt (fmt, ap, iop);
63 len = _doprnt (fmt, ap, iop);
64 return (ferror (iop) ? EOF : len);
71 vsprintf (str, fmt, ap)
78 f._flag = _IOWRT|_IOSTRG;
81 len = _doprnt (fmt, ap, &f);
85 #endif /* USE_VFPRINTF_EMULATION */