// Copyright 2018 The Android Open Source Project
//
// This software is licensed under the terms of the GNU General Public
// License version 2, as published by the Free Software Foundation, and
// may be copied, distributed, and modified under those terms.
//
// 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.
#include <io.h>

#include <stdio.h>
#include <stdlib.h>


// From https://msdn.microsoft.com/en-us/library/28d5ce15.aspx
int vasprintf(char** buf, const char* format, va_list args) {
    int len;

    if (buf == NULL) {
        return -1;
    }

    len = _vscprintf(format, args)  // _vscprintf doesn't count
          + 1;                      // terminating '\0'

    if (len <= 0) {
        return len;
    }

    *buf = (char*)malloc(len * sizeof(char));

    vsprintf(*buf, format, args);  // C4996
    // Note: vsprintf is deprecated; consider using vsprintf_s instead
    return len;
}