1 /*
2 * Copyright (c) 1990, 2007 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * and/or other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16 */
17 /* This code was based on vsiprintf.c */
18 /* doc in vfprintf.c */
19
20 #if defined(LIBC_SCCS) && !defined(lint)
21 static char sccsid[] = "%W% (Berkeley) %G%";
22 #endif /* LIBC_SCCS and not lint */
23
24 #define _DEFAULT_SOURCE
25 #include <_ansi.h>
26 #include <stdio.h>
27 #include <limits.h>
28 #include <stdarg.h>
29
30 #include "local.h"
31
32 int
vasiprintf(char ** strp,const char * fmt,va_list ap)33 vasiprintf (
34 char **strp,
35 const char *fmt,
36 va_list ap)
37 {
38 int ret;
39 FILE f;
40
41 f._flags = __SWR | __SSTR | __SMBF ;
42 f._flags2 = 0;
43 f._bf._base = f._p = NULL;
44 f._bf._size = f._w = 0;
45 f._file = -1; /* No file. */
46 ret = svfiprintf ( &f, fmt, ap);
47 if (ret >= 0)
48 {
49 *f._p = 0;
50 *strp = (char *) f._bf._base;
51 }
52 return ret;
53 }
54
