diff options
Diffstat (limited to 'lib/asprintf.c')
-rw-r--r-- | lib/asprintf.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/asprintf.c b/lib/asprintf.c new file mode 100644 index 000000000..aecfa9141 --- /dev/null +++ b/lib/asprintf.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2006 the xine project + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + */ + +#include "config.h" +#include <string.h> +#include <stdlib.h> +#include <stdarg.h> + +int _xine_private_vasprintf (char **buffer, const char *format, va_list ap) +{ + char *buf = NULL; + int size = 128; + + for (;;) + { + int ret; + va_list cp; + char *newbuf = realloc (buf, size *= 2); + if (!newbuf) + { + free (buf); + return -1; + } + buf = newbuf; + + va_copy (cp, ap); + ret = vsnprintf (buf, size, format, cp); + va_end (cp); + + if (ret >= 0 && ret < size) + { + *buffer = realloc (buf, ret + 1); + return ret; + } + } +} + +int _xine_private_asprintf (char **buffer, const char *format, ...) +{ + int ret; + va_list ap; + va_start (ap, format); + ret = _xine_private_vasprintf (buffer, format, ap); + va_end (ap); + return ret; +} |