diff options
Diffstat (limited to 'gl/lib/vasprintf.c')
-rw-r--r-- | gl/lib/vasprintf.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gl/lib/vasprintf.c b/gl/lib/vasprintf.c new file mode 100644 index 0000000..d2878cd --- /dev/null +++ b/gl/lib/vasprintf.c @@ -0,0 +1,50 @@ +/* Formatted output to strings. + Copyright (C) 1999, 2002, 2006-2023 Free Software Foundation, Inc. + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + This file 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser 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; +} |