C programming, sockets/client-server.

[Energize]

I don't even know where to start with this exercise lol.

I have to create a client-server messaging program.

I've included the winsock.h header file and have got this statement: socket(PF_INET, SOCK_STREAM, 0), can't work out how to declare a socket though I've missed so much. I'd have thought it would be something like "socket sock; sock = socket(PF_INET, SOCK_STREAM, 0);" but the compiler doesn't seem to like that. Any suggestions?

 

[Energize]

Thanks for the links guys, the information provided by the uni is virtually non existant.

 

[Energize]

Still can't get the most basic program to work lol.

This,

#include <stdio.h>
#include <stdlib.h>
#include <winsock.h>

int main(int argc, char * argv[]) {
	SOCKET sock;
	sock = socket(PF_INET, SOCK_STREAM, 0);
	system("pause");
	return 0;
}

keeps giving me the error message.

1>Main.obj : error LNK2019: unresolved external symbol _socket@12 referenced in function _main
1>C:\Users\Administrator\Documents\Visual Studio 2008\Projects\Chat\Debug\Chat.exe : fatal error LNK1120: 1 unresolved externals

 

[Energize]

Just to expand on the above really (it always takes me ages to find the correct section ):

In Visual Studio (I'm using 2008, the rest should be similar)

1. Go to project > properties
2. Expand Configuration Properties
3. Expand Linker
4. Click Input
5. Add 'ws2_32.lib' (no quotes) to 'Additional Dependencies'

and it'll compile .

Thanks you two, finally got it to compile. Java is so much easier...