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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 09:40:31 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 09:40:31 +0000 |
commit | b86570f63e533abcbcb97c2572e0e5732a96307b (patch) | |
tree | cabc83be691530ae685c45a8bc7620ccc0e1ebdf /lib/compat/vasprintf.c | |
parent | Initial commit. (diff) | |
download | dpkg-b86570f63e533abcbcb97c2572e0e5732a96307b.tar.xz dpkg-b86570f63e533abcbcb97c2572e0e5732a96307b.zip |
Adding upstream version 1.20.13.upstream/1.20.13upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/compat/vasprintf.c')
-rw-r--r-- | lib/compat/vasprintf.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/lib/compat/vasprintf.c b/lib/compat/vasprintf.c new file mode 100644 index 0000000..9d53a32 --- /dev/null +++ b/lib/compat/vasprintf.c @@ -0,0 +1,59 @@ +/* + * libcompat - system compatibility library + * + * Copyright © 2010 Guillem Jover <guillem@debian.org> + * + * This 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 2 of the License, or + * (at your option) any later version. + * + * This 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> + +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> + +#include "compat.h" + +int +vasprintf(char **strp, char const *fmt, va_list args) +{ + va_list args_copy; + int needed, n; + char *str; + + va_copy(args_copy, args); + needed = vsnprintf(NULL, 0, fmt, args_copy); + va_end(args_copy); + + if (needed < 0) { + *strp = NULL; + return -1; + } + + str = malloc(needed + 1); + if (str == NULL) { + *strp = NULL; + return -1; + } + + n = vsnprintf(str, needed + 1, fmt, args); + if (n < 0) { + free(str); + str = NULL; + } + + *strp = str; + + return n; +} |