如何避免使用C中非空终止的缓冲区调用fopen（）？

Let's look at this example:

我们来看看这个例子:

static FILE *open_file(const char *file_path)
{
    char buf[80];
    size_t n = snprintf(buf, sizeof (buf), "%s", file_path);
    assert(n < sizeof (buf));
    return fopen(buf, "r");
}
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