sys_stat: Fix 'implicit declaration of function' warning on OS/2 kLIBC.
[gnulib.git] / lib / c-vasprintf.c
blob0af4d4830ad74ab02caca68ba612bd43d0a05dfb
1 /* Formatted output to strings in C locale.
2 Copyright (C) 1999, 2002, 2006-2019 Free Software Foundation, Inc.
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.
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.
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, see <https://www.gnu.org/licenses/>. */
17 #include <config.h>
19 /* Specification. */
20 #include "c-vasprintf.h"
22 #include <errno.h>
23 #include <limits.h>
24 #include <stdlib.h>
26 #include "c-vasnprintf.h"
28 int
29 c_vasprintf (char **resultp, const char *format, va_list args)
31 size_t length;
32 char *result = c_vasnprintf (NULL, &length, format, args);
33 if (result == NULL)
34 return -1;
36 if (length > INT_MAX)
38 free (result);
39 errno = EOVERFLOW;
40 return -1;
43 *resultp = result;
44 /* Return the number of resulting bytes, excluding the trailing NUL. */
45 return length;