如何在C#中將結(jié)構(gòu)轉(zhuǎn)換為字節(jié)數(shù)組？如何在C#中將結(jié)構(gòu)轉(zhuǎn)換為字節(jié)數(shù)組？我定義了這樣一個(gè)結(jié)構(gòu)：public struct CIFSPacket{
public uint protocolIdentifier; //The value must be "0xFF+'SMB'".
public byte command;
public byte errorClass;
public byte reserved;
public ushort error;
public byte flags;
//Here there are 14 bytes of data which is used differently among different dialects.
//I do want the flags2. However, so I'll try parsing them.
public ushort flags2;
public ushort treeId;
public ushort processId;
public ushort userId;
public ushort multiplexId;
//Trans request
public byte wordCount;//Count of parameter words defining the data portion of the packet.
//From here it might be undefined...
public int parametersStartIndex;
public ushort byteCount; //Buffer length
public int bufferStartIndex;
public string Buffer;}在我的主要方法中，我創(chuàng)建它的一個(gè)實(shí)例并給它賦值：CIFSPacket packet = new CIFSPacket();packet.protocolIdentifier = 0xff;packet.command = (byte)CommandTypes.SMB_COM_NEGOTIATE;
packet.errorClass = 0xff;packet.error = 0;packet.flags = 0x00;packet.flags2 = 0x0001;packet.multiplexId = 22;packet.wordCount = 0;
packet.byteCount = 119;packet.Buffer = "NT LM 0.12";現(xiàn)在我想用套接字發(fā)送這個(gè)包。為此，我需要將結(jié)構(gòu)轉(zhuǎn)換為字節(jié)數(shù)組。我該怎么做？代碼片段是什么？
3 回答
冉冉說(shuō)
TA貢獻(xiàn)1877條經(jīng)驗(yàn) 獲得超1個(gè)贊
[DllImport("kernel32.dll", EntryPoint = "CopyMemory", SetLastError = false)]
private static unsafe extern void CopyMemory(void *dest, void *src, int count);
private static unsafe byte[] Serialize(TestStruct[] index)
{
var buffer = new byte[Marshal.SizeOf(typeof(TestStruct)) * index.Length];
fixed (void* d = &buffer[0])
{
fixed (void* s = &index[0])
{
CopyMemory(d, s, buffer.Length);
}
}
return buffer;
}
瀟湘沐
TA貢獻(xiàn)1816條經(jīng)驗(yàn) 獲得超6個(gè)贊
byte [] StructureToByteArray(object obj){
int len = Marshal.SizeOf(obj);
byte [] arr = new byte[len];
IntPtr ptr = Marshal.AllocHGlobal(len);
Marshal.StructureToPtr(obj, ptr, true);
Marshal.Copy(ptr, arr, 0, len);
Marshal.FreeHGlobal(ptr);
return arr;}void ByteArrayToStructure(byte [] bytearray, ref object obj){
int len = Marshal.SizeOf(obj);
IntPtr i = Marshal.AllocHGlobal(len);
Marshal.Copy(bytearray,0, i,len);
obj = Marshal.PtrToStructure(i, obj.GetType());
Marshal.FreeHGlobal(i);}更新
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