如何正确写入UDP数据包
我正在尝试从我不久前编写的 C++ 程序中重写一些代码，但我不确定是否/如何正确写入字节数组，或者我是否应该使用其他东西。我尝试更改为 C# .NET 的代码如下。
unsigned char pData[1400];
bf_write g_ReplyInfo("SVC_ReplyInfo", &pData, 1400);
void PlayerManager::BuildReplyInfo()
{
// Delete the old packet
g_ReplyInfo.Reset();
g_ReplyInfo.WriteLong(-1);
g_ReplyInfo.WriteByte(73);
g_ReplyInfo.WriteByte(g_ProtocolVersion.GetInt());
g_ReplyInfo.WriteString(iserver->GetName());
g_ReplyInfo.WriteString(iserver->GetMapName());
}
I am trying to rewrite some of my code from a C++ program I wrote a while ago, but I am not sure if/how I can write to a byte array properly, or if I should be using something else. The code I am trying to change to C# .NET is below.
unsigned char pData[1400];
bf_write g_ReplyInfo("SVC_ReplyInfo", &pData, 1400);
void PlayerManager::BuildReplyInfo()
{
// Delete the old packet
g_ReplyInfo.Reset();
g_ReplyInfo.WriteLong(-1);
g_ReplyInfo.WriteByte(73);
g_ReplyInfo.WriteByte(g_ProtocolVersion.GetInt());
g_ReplyInfo.WriteString(iserver->GetName());
g_ReplyInfo.WriteString(iserver->GetMapName());
}
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BinaryWriter可能会工作，尽管字符串是用前面的 7 位编码长度编写的，我怀疑客户端将无法处理。您可能必须将字符串转换为字节，然后添加一个长度字或以 0 结尾。无需手动将数字转换为字节。如果您想将一个
long写为byte，只需将其转换即可。也就是说，如果您的BinaryWriter是bw，那么您可以编写bw.Write((byte)longval);。要将-1写为 long：bw.Write((long)(-1))。BinaryWritermight work, although strings are written with a preceding 7-bit encoded length, which I suspect the client won't be able to handle. You'll probably have to convert strings to bytes and then either add a length word or 0-terminate it.No need to manually convert numbers to bytes. If you have a
longthat you want to write as abyte, just cast it. That is, if yourBinaryWriterisbw, then you can writebw.Write((byte)longval);. To write-1as a long:bw.Write((long)(-1)).