* C99-compatible snprintf() and vsnprintf() implementations
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <limits.h>
#include <string.h>
+#include "compat/va_copy.h"
#include "libavutil/error.h"
+#if defined(__MINGW32__)
+#define EOVERFLOW EFBIG
+#endif
+
int avpriv_snprintf(char *s, size_t n, const char *fmt, ...)
{
va_list ap;
va_list ap)
{
int ret;
+ va_list ap_copy;
if (n == 0)
- return 0;
+ return _vscprintf(fmt, ap);
else if (n > INT_MAX)
return AVERROR(EOVERFLOW);
* _snprintf/_vsnprintf() to workaround this problem.
* See http://msdn.microsoft.com/en-us/library/1kt27hek(v=vs.80).aspx */
memset(s, 0, n);
- ret = _vsnprintf(s, n - 1, fmt, ap);
+ va_copy(ap_copy, ap);
+ ret = _vsnprintf(s, n - 1, fmt, ap_copy);
+ va_end(ap_copy);
if (ret == -1)
- ret = n;
+ ret = _vscprintf(fmt, ap);
return ret;
}