1 /*
2 * Copyright (c) 1995
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include <sys/types.h>
27
28 #include <stdio.h>
29 #include <stdarg.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32
33 #include "interface.h"
34
35 /*
36 * Stock 4.3 doesn't have vfprintf.
37 * This routine is due to Chris Torek.
38 */
vfprintf(f,fmt,args)39 vfprintf(f, fmt, args)
40 FILE *f;
41 char *fmt;
42 va_list args;
43 {
44 int ret;
45
46 if ((f->_flag & _IOWRT) == 0) {
47 if (f->_flag & _IORW)
48 f->_flag |= _IOWRT;
49 else
50 return EOF;
51 }
52 ret = _doprnt(fmt, args, f);
53 return ferror(f) ? EOF : ret;
54 }
55