| /* Formatted output to strings. |
| Copyright (C) 1999, 2002, 2006-2019 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| /* Specification. */ |
| #ifdef IN_LIBASPRINTF |
| # include "vasprintf.h" |
| #else |
| # include <stdio.h> |
| #endif |
| |
| #include <errno.h> |
| #include <limits.h> |
| #include <stdlib.h> |
| |
| #include "vasnprintf.h" |
| |
| int |
| vasprintf (char **resultp, const char *format, va_list args) |
| { |
| size_t length; |
| char *result = vasnprintf (NULL, &length, format, args); |
| if (result == NULL) |
| return -1; |
| |
| if (length > INT_MAX) |
| { |
| free (result); |
| errno = EOVERFLOW; |
| return -1; |
| } |
| |
| *resultp = result; |
| /* Return the number of resulting bytes, excluding the trailing NUL. */ |
| return length; |
| } |