Archipelago » qemu

#if defined(__linux__) || defined(__FreeBSD__)

static int hdev_create(const char *filename, int64_t total_size,

                       const char *backing_file, int flags)

{

    int fd;

    int ret = 0;

    struct stat stat_buf;

    if (flags || backing_file)

        return -ENOTSUP;

    fd = open(filename, O_WRONLY | O_BINARY);

    if (fd < 0)

        return -EIO;

    if (fstat(fd, &stat_buf) < 0)

        ret = -EIO;

    else if (!S_ISBLK(stat_buf.st_mode))

        ret = -EIO;

    else if (lseek(fd, 0, SEEK_END) < total_size * 512)

        ret = -ENOSPC;

    close(fd);

    return ret;

}

#else  /* !(linux || freebsd) */

static int hdev_create(const char *filename, int64_t total_size,

                       const char *backing_file, int flags)

{

    return -ENOTSUP;

}

#endif

    .bdrv_create        = hdev_create,