Java sockets to C sockets

Question

Can any one help me translate this Java code to C. I have tried so many different ways but with no success. I have the problem in the buffer part I don't know how to store the data and then send it using a C socket.

SocketChannel socketChannel = SocketChannel.open(); socketChannel.connect(new InetSocketAddress("127.0.0.1", 6633)); ByteBuffer buf = ByteBuffer.allocate(48); buf.clear(); byte version = 0x01; short length = 8; byte type = 0; buf.put(version); buf.put(type); buf.putShort(length); buf.putInt(12356); buf.flip(); socketChannel.write(buf);

Thanks.

Is this something like what you're looking for: cs.utah.edu/dept/old/texinfo/glibc-manual-0.02/library_15.html — Nico
– Nico, Commented Jan 24, 2014 at 1:24

mpromonet · Accepted Answer · 2015-01-03 17:30:56Z

Below is the code:

SOCKET sock = socket(PF_INET, SOCK_STREAM, 0); struct sockaddr_in thataddr; thataddr.sin_addr.s_addr = inet_addr("127.0.0.1"); thataddr.sin_family = AF_INET; thataddr.sin_port = htons(6633); connect(sock, (LPSOCKADDR) &thataddr, sizeof(thataddr)); typedef struct SendThis { unsigned char version; unsigned int length; unsigned char type; }; SendThis sendThis; sendThis.version = '1'; sendThis.length = 8; sendThis.type = 0; send(sock,(char *)&sendThis,sizeof(SendThis),0);

Its not tested, also add error checks, wherever it is required.

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