1 /* Formatted output to strings.
2 Copyright (C) 1999, 2002 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
17 #include <sys/cdefs.h>
18 __RCSID("$NetBSD: vasprintf.c,v 1.2 2016/05/17 14:00:09 christos Exp $");
19
20
21 #ifdef HAVE_CONFIG_H
22 # include <config.h>
23 #endif
24
25 /* Specification. */
26 #include "vasprintf.h"
27
28 #include <stdlib.h>
29
30 #include "vasnprintf.h"
31
32 int
vasprintf(char ** resultp,const char * format,va_list args)33 vasprintf (char **resultp, const char *format, va_list args)
34 {
35 size_t length;
36 char *result = vasnprintf (NULL, &length, format, args);
37 if (result == NULL)
38 return -1;
39
40 *resultp = result;
41 /* Return the number of resulting bytes, excluding the trailing NUL.
42 If it wouldn't fit in an 'int', vasnprintf() would have returned NULL
43 and set errno to EOVERFLOW. */
44 return length;
45 }
46